We primarily provide supply-only products for trade and homeowners, but we can also recommend trusted local installers if you need fitting support.

Lead times vary by product, but most standard uPVC items are available within a few weeks, with aluminium products taking slightly longer. We’ll confirm accurate timescales at the point of order.

All products come with a manufacturer-backed warranty, covering frames, hardware, and glazing for long-term peace of mind.

Casement windows are available in a wide range of colours, including classic whites, modern greys, bold contemporary shades and realistic woodgrain finishes. You can also choose dual-colour options to match your home’s interior and exterior styles.

These finishes are designed to be long-lasting and low maintenance, resisting fading and weathering over time. Whether you’re updating a cottage or a new-build home, there’s a colour to perfectly complement your property.

Yes. You can visit the Leicester Window Supplies showroom to explore window styles, colour samples and hardware options in person. Our team is on hand to offer guidance and help you choose the perfect casement windows for your home.

Visiting the showroom also gives you the opportunity to compare options side by side and ask any questions you may have about design, security, glazing performance or installation, ensuring you feel fully confident in your choices.

The time varies depending on the size and type of project. For example, fitting a front door typically takes half a day, while replacing all windows in an average three-bedroom semi might take around two days.

Your installation team will provide a clear schedule ahead of time, keeping you updated throughout the process. This ensures you know exactly what to expect so the upgrade runs smoothly from start to finish.

Yes. The fitting team will remove your existing windows or doors at the end of each day before leaving the site. Your old units are then sent for recycling, helping reduce waste and keep things tidy during your upgrade.

Your installers will also ensure the work area remains safe, clean and secure throughout the project, minimising disruption. You can expect a professional, organised process focused on respect for your home.

Yes. Flush casement windows are available with high-performance double or triple glazing and insulated frames, helping improve your home’s warmth, reduce draughts and lower overall energy use.

This energy-saving design can also support lower heating bills and a more comfortable environment throughout the year, making them a smart long-term investment for any property.

Leicester Window Supplies offers a wide range of colours, including classic whites, modern greys and heritage woodgrain finishes. You can also choose dual-colour options to match both the inside and outside of your home.

With so many shades and textures available, it’s easy to tailor your new windows to your property’s style. So whether you prefer a bold, contemporary look or a more traditional timber effect.

Absolutely. These windows feature multi-point locking and strong hardware for added peace of mind. The secure design helps protect your home without compromising the slim, elegant appearance.

Many models also include reinforced frames and impact-resistant glazing options, giving you an additional layer of protection and confidence in the long-term security of your home.

Yes. Their clean, flush finish closely replicates traditional timber windows, making them ideal for character properties. At the same time, they offer all the benefits of modern performance and low maintenance.

Homeowners can achieve an authentic appearance without the upkeep associated with older timber frames, making flush casements a popular choice for conservation-sensitive upgrades.

Yes we do. Leicester Window Supplies has a dedicated showroom where you can see flush casement samples, colours and hardware options in person. Their team can guide you through designs and answer any questions about your project.

Visiting the showroom also allows you to explore other products, compare finishes and get personalised advice to help you choose the perfect style for your home.

Tilt and turn windows have a dual-opening system: they tilt inward from the top for ventilation and turn inward from the side for full access and easy cleaning.

This versatile mechanism gives you precise control over airflow and day-to-day use. The tilt mode offers secure ventilation without fully opening the window, while the turn position is ideal when you need maximum access — whether for cleaning, maintenance, or creating a wide, unobstructed opening.

Yes. They typically use multi-point locking and strong reinforced frames, and many systems can be upgraded to meet PAS 24 security standards.

The inward-opening design also enhances security because the sash cannot be forced from the outside when tilted. Combined with robust hinges, internal glazing beads, and optional laminated glass, tilt and turn windows provide impressive resistance to intrusion.

Their multi-chambered frames and double or triple glazing options help achieve low U-values, reducing heat loss while it could save on energy bills.

Because the sealing system compresses tightly when closed, these windows offer excellent airtightness, preventing draughts and keeping your home more comfortable throughout the year. Modern tilt and turn profiles are engineered to meet or exceed current energy regulations, making them a smart choice for eco friendly homeowners.

Absolutely. The inward-turning function makes them easy to clean from inside, making them ideal for first floors, lofts, or apartments.

They also provide a reliable means of escape in an emergency, depending on the chosen size and configuration. This combination of practicality and safety makes tilt and turn windows especially popular for multi-storey homes where accessibility is limited.

uPVC sliding sash windows should be professionally installed. The process involves removing the old frame, preparing the opening, fitting and securing the new sash window, checking operation of both sashes, and sealing around the frame for weather protection. Our qualified installers ensure the window meets safety, performance and building regulation standards.

Professional installation also guarantees smooth operation and a secure fit, helping your new windows perform at their best for many years.

Yes. Modern uPVC sliding sash windows include multi-point locks, reinforced frames and toughened or laminated glazing options. The windows can be upgraded to meet Secured by Design for additional peace of mind.

These enhanced security features make sliding sash windows a strong and reliable choice, giving you confidence that your home is well protected.

Absolutely. uPVC sliding sash windows are specifically designed to replicate the proportions, detailing and charm of traditional timber sashes, making them ideal for period and conservation-style properties. Many options allow you to match original features closely, such as run-through horns, woodgrain finishes and slim sightlines.

Their authentic appearance helps preserve the character of older homes while providing modern comfort, security and energy efficiency, often without the ongoing maintenance associated with timber.

Yes. Our windows are designed with high-performance thermal technology and can achieve excellent U-values with both double and triple glazing. They help keep your home warmer in winter and cooler in summer, reducing overall energy usage.

The innovative construction works hand in hand with high-quality seals, minimising draughts and improving overall comfort. This ensures your home stays consistently at the right temperature, contributing to a more efficient, sustainable living environment.

Our aluminium windows come in plenty of durable powder-coated colours, including classic whites, modern greys, black and bespoke architectural tones. You can also choose dual-colour options to suit both your interior décor and exterior style.

Each finish is designed to maintain its vibrancy for years, resisting fading even in harsh weather conditions. This gives you the freedom to choose a colour that complements your home without worrying about long-term upkeep.

Not at all. Aluminium frames with powder-coated finishes are built to resist fading, warping and corrosion. All you need to do is wipe them with a cloth and soapy water so they look in pristine condition.

Because they don’t swell or crack like timber alternatives, aluminium windows maintain their shape and strength with minimal effort. This makes them an ideal low-maintenance choice for busy households and long-term homeowners alike.

Yes. Sheerline incorporates robust multi-point locking systems, strong frames and optional laminated glazing for improved protection. The system has been designed with security in mind, resulting in a safer home.

The internal beading design ensures glass can’t be removed from the outside, adding an extra layer of defence. Combined with high-grade materials, Sheerline windows provide peace of mind for you and your family.

Absolutely. You can choose from various opening styles, glazing options, colours and hardware finishes. Their slim profiles and sleek lines suit both modern and traditional properties, allowing you to tailor the final look to your home.

Whether you’re aiming for a minimalist aesthetic or something more classic, Sheerline’s versatile design options make personalisation simple. Every window is built to order, allowing you to achieve the perfect balance of style and performance.

Yes. Secondary glazing is often the preferred solution for listed buildings because it preserves the original windows while enhancing performance.

It’s discreet, reversible, and usually accepted by planning authorities, making it an ideal choice for improving insulation, security, and comfort.

Secondary glazing comes with slim aluminium frames in various colours to match existing décor. Glass options include toughened, laminated, acoustic and low-E energy-saving glass.

This flexibility allows homeowners to tailor performance to noise reduction, security, or thermal goals while maintaining a subtle, unobtrusive appearance.

Secondary glazing provides stronger noise reduction than double glazing by using a larger air gap that disrupts sound vibrations and delivers a quieter indoor environment.

The additional insulating barrier helps reduce heat loss, making secondary glazing a practical alternative for replacing windows.

Secondary glazing requires very little upkeep, with durable aluminium frames and high-quality glass that only need occasional cleaning to stay clear, smooth, and visually unobtrusive.

Most secondary glazing options include easy-access openings, allowing quick cleaning of both panes, reducing long-term maintenance demands, and ensuring your windows continue performing efficiently without frequent specialist attention or repairs.

Yes. Modern aluminium bifold doors are designed with advanced thermal breaks and high-performance glazing, helping keep your home warm in winter and cool in summer. This makes them energy efficient and comfortable to use all year round.

For homeowners, this means reduced heat loss, lower energy bills, and a more comfortable home environment without sacrificing the sleek, slim design aluminium is known for.

In most cases, you won’t need planning permission to install aluminium bifold doors, especially if you’re replacing an existing door or window. If your project involves structural changes or is part of a larger extension, additional approval may be required. It’s always best to check, and we’re happy to guide you through it.

This gives you confidence and clarity from the start, ensuring your project runs smoothly and meets all requirements before installation begins.

Sliding doors are designed to operate from the inside of your home. The internal panel glides smoothly across the fixed outer panel on a secure track, making them easy to use while maintaining excellent weather protection and security.

In most modern designs, the operating panel is positioned on the room-facing side for both safety and practicality. This allows you to open or close the door without reaching outside, and also helps protect the mechanism from the elements, ensuring smoother operation and longer-lasting performance.

Yes. Modern sliding doors are designed to keep your home warm, even in colder months. With advanced double or triple glazing, insulated aluminium frames, and weather-tight seals, they help reduce heat loss and help maintain a comfortable indoor temperature throughout the winter.

High-performance sliding doors undergo rigorous testing to ensure they meet strict thermal efficiency standards. Many models also offer optional upgrades such as low-e coatings and thermal breaks, delivering exceptional insulation and helping keep your energy bills lower throughout the year.

Heritage doors enhance aesthetic appeal, improve energy efficiency, provide superior insulation, and increase your home security.

They’re also a fantastic way to boost your home’s kerb appeal and resale value. By combining traditional detailing with advanced materials, heritage doors offer long-lasting performance without the upkeep of timber, making them a smart investment for busy modern households.

The cost of Heritage doors depends on the style, size, hardware, and colour options you choose. Our team provides tailored quotes to ensure you get the right design for your home and budget.

Because every home is unique, choosing bespoke glazing, premium handles, or specialist finishes can influence the final price. A personalised consultation ensures you understand all available options, helping you make an informed choice that suits your aesthetic preferences.

Heritage doors are available in a wide choice of colours, including authentic woodgrain finishes, soft heritage tones, and deeper modern shades. This allows you to match your door perfectly to your home’s style and character.

Whether you want a subtle, understated look or a bolder, more defined finish, the extensive palette makes personalisation easy. You can also pair your chosen colour with complementary hardware to create a cohesive, beautifully styled entrance.

Yes. Heritage doors come with a manufacturer’s guarantee, so you will get a door that’s built to last and offers high quality security.

This guarantee covers key components of the door, ensuring long-term protection against manufacturing defects. It also reflects the quality of the materials used, giving you confidence that your installation will perform reliably for many years.

Composite doors can technically be painted, but it’s not generally recommended. They are manufactured with a durable, weather-resistant outer skin designed to maintain its colour and finish without the need for repainting.

Painting over this surface can affect appearance, void warranties, and reduce long-term performance. If a homeowner wants a different colour, it’s usually better to choose a door in the desired finish from the start, as most composite door ranges come in a wide selection of factory-applied colours.

Composite doors are designed to resist fading, thanks to their robust outer skin—often made using GRP or specialised foils that protect against UV exposure. This means they maintain their colour far longer than traditional timber doors.

However, like any external product, slight changes over many years are possible, especially on south-facing properties with strong direct sunlight. Choosing a high-quality composite door with UV-stable, colour-fast materials greatly reduces this risk and ensures the door keeps its appearance without much maintenance.

The double or triple glazed frames provide excellent thermal efficiency. Their multi-chambered design helps keep heat inside your home, while high-quality seals minimise draughts and stop cold air from getting in.

These features work together to maintain comfortable temperatures throughout the year, helping you rely less on heating and cooling systems.Thermally efficient French doors not only improve comfort but can also lead to lower household energy bills, making them a smart long-term investment for any property.

French doors are relatively low-maintenance, especially modern uPVC or aluminium styles. Routine upkeep usually involves wiping down the frames, cleaning the glass and occasionally cleaning the hinges and locks.

High-quality finishes help prevent fading, warping or cracking over time. With simple care, French doors can stay in excellent condition for many years, making them a practical option for busy households looking for durability and ease of use.

Yes, French doors offer a wide range of customisation options to suit both traditional and modern homes. You can choose from various colours, woodgrain finishes, handle styles and hardware upgrades. Glazing options include clear, decorative, obscured or energy-efficient glass depending on privacy and performance needs.

Many homeowners also create the opening direction and configuration to maximise space. These flexible options allow you to choose French doors that complement your home’s style while meeting your practical needs.

Yes. Modern aluminium bifold doors are designed with advanced thermal breaks and high-performance glazing, helping keep your home warm in winter and cool in summer. This makes them energy efficient and comfortable to use all year round.

Many of our aluminium bifold doors also offer optional upgrades such as triple glazing or enhanced seals. These additions can further improve insulation, helping reduce energy bills, keeping a stable indoor temperature.

In most cases, you won’t need planning permission to install aluminium bifold doors, especially if you’re replacing an existing door or window. If your project involves structural changes or is part of a larger extension, additional approval may be required. It’s always best to check, and we’re happy to guide you through it.

If you’re unsure, we can help assess your plans and advise on any permissions needed. We’ll make the process simple, so you can move forward with complete confidence.

Yes. Aluminium bifold doors are designed with robust frames, multi-point locking systems, and toughened glazing to keep your home secure. Their strength and build quality make them a reliable choice for enhanced safety.

These doors include additional security features such as anti-lift tracks and high-security cylinders. These upgrades offer extra peace of mind, ensuring your doors protect your home while still looking stylish.

Absolutely. uPVC sliding doors are available in a wide range of sizes, colours, and finishes, allowing you to create a design that perfectly matches your home. Whether you prefer a contemporary anthracite grey or a classic white finish, there’s an option for every style.

You can also choose from different glazing styles, handle designs, and layouts to suit your space. All our doors are made to measure, ensuring a seamless fit and beautiful finish.

Yes, uPVC sliding doors are built with security as a top priority. They feature multi-point locking systems, durable frames, and toughened safety glass to help protect your home from potential intruders.

The robust construction ensures the doors remain sturdy over time, while modern hardware provides extra peace of mind. With professional installation, your sliding doors will not only look great but also deliver outstanding protection.

uPVC sliding doors offer long term performance without much upkeep. The durable uPVC material will not rot, warp, or fade, even when exposed to harsh weather conditions.

With occasional maintenance of the tracks and hardware, your doors will continue to operate smoothly and look their best for many years. This impressive lifespan makes uPVC sliding doors a reliable and cost-effective choice for any home.

PAS 24 is a security standard created by the British Standards Institute (BSI). It shows that a door or window has been tested to make sure it can resist forced entry. The Smart Signature Door meets this standard, giving you extra confidence in your home’s security.

This means your door has been checked to prove it’s strong, secure, and not easy to break into. It also helps make sure your home meets modern building and safety requirements.

Signature doors come in lots of long-lasting powder-coated colours, including classics like White and Anthracite Grey, as well as brighter modern shades. You can even choose a different colour on the inside and outside for a personalised finish.

These colours are designed to stay looking great for years without fading or peeling. Whether you want something subtle or bold, there’s a shade to suit every home.

Signature aluminium doors are very easy to maintain. Just clean the frame and glass with warm soapy water and a soft cloth from time to time. Avoid using strong chemicals, and check hinges and locks occasionally to keep everything working smoothly.

These doors only need a quick clean to stay in immaculate condition. This ensures that they will last for many years to come.

Yes, a well-designed conservatory can add value by creating extra living space and enhancing your home’s kerb appeal. It may also make your property more attractive to potential buyers.

Homeowners often see the best return when the space feels integrated with their existing layout. A high-quality build with modern insulation and glazing can make your conservatory a real selling point.

Most conservatories fall under permitted development and don’t require planning permission if they follow certain size and placement rules. We can guide you through any questions you may have.

We know that permitted development makes things easier to build your extension. If your design needs approval, we can help you understand the process and ensure everything meets local regulations.

Modern conservatories are designed to retain a comfortable temperature using, insulated pelmets, and thermally efficient roofing systems. With a U value of 0.15 W/m²K, the space is useable all year round.

You can upgrade our conservatory roofs with Velux double glazing panels, so natural light can flood in your home.

Yes. Modern orangeries are built with advanced insulation in the roof, walls and glazing to maintain a comfortable temperature throughout the year. The insulated pelmet offers added warmth, while providing space to house speakers and spotlights.

Choosing high-performance materials ensures our orangeries are practical, long-term addition that feel like a natural extension of your home.

Not necessarily, planning permission isn’t normally required for our orangeries. Our installers can help check this for you and advise accordingly.

If you do need approval, then our installers will take care of all the paperwork that’s needed. This results in a smooth installation while giving you peace of mind.

Absolutely. Our solid conservatory roofs offer full-length glass panels, allowing natural light without losing the excellent thermal performance homeowners expect.

These glazing options help create a bright, airy atmosphere and can be positioned to highlight key areas of your room, making the space feel bigger and inviting.

Yes. The lightweight structure works with many existing frames, making it ideal for replacing outdated glass or polycarbonate roofs.

This means you can refresh and upgrade your conservatory without the cost of a full rebuild, giving older structures a modern look and improved energy efficiency.

Typically yes. The attractive tiled finish and improved comfort make your home more appealing to future buyers across Leicester.

By turning your conservatory into a genuine year-round living space, our tiled conservatory roof enhances both kerb appeal and usability — two major selling points for potential buyers.

Absolutely. Livinroof allows shaped glazing anywhere in the structure, giving you full control over where natural light enters your room.

These configurable glazing sections can be positioned to highlight specific areas, brighten darker corners, or create a stunning focal point. It’s the perfect way to enjoy natural daylight without sacrificing the insulation and privacy of a solid roof.

Yes. Livinroof is the only solid replacement roof specifically engineered to perform on pitches as low as 5°, making it an excellent fit for many Leicester properties.

Its adaptability allows it to suit homes with tight height limits, bungalows, compact extensions, and older conservatories. This ensures a high-performance upgrade even where other roof systems simply wouldn’t work.

In most cases, yes. Livinroof upgrades appearance, comfort, and energy efficiency — key features that add appeal and potential value to any home.

A warm, usable conservatory that looks modern and performs well can be a major selling point. Your solid conservatory roof helps transform an outdated space into a practical extension that integrates fully with your home.

Exceptional thermal performance is at the heart of the S1 design. Using Sheerline’s innovative Thermolock® multi-chamber aluminium technology combined with 28mm high-performance glazing, the lantern can achieve U-values as low as 1.0–1.2 W/m²K.

This helps to minimise heat loss during colder months, reduces energy consumption, and keeps your living space comfortable all year round.

Yes, the Sheerline S1 is engineered with security in mind. It includes anti-tamper screws, an enclosed glazing system, and high-security ridge ends that prevent the lantern from being removed from the outside.

For homeowners who want the highest level of reassurance, there’s also the option to upgrade to Secured by Design, the official police-backed security standard for home improvement products.

Absolutely. The S1 is fully compatible with the SheerVent® ventilation system, a flush-fitting, thermally broken vent that maintains the lantern’s clean, modern look.

You can choose manual or automated operation, and even add rain and wind sensors for automatic closing in poor weather, giving you fresh air when you want it and protection when you need it.

The roof lantern is available in a range of contemporary powder-coated aluminium finishes, including Anthracite Grey, Jet Black, and Pure White as standard.

If you’d like something more personalised, Sheerline also offers bespoke colour options, ensuring your lantern complements your home’s architecture and interior style perfectly.

Yes. For added confidence, all Sheerline S1 Roof Lanterns come with a comprehensive 10-year guarantee, covering materials and manufacturing.

This ensures your roof lantern will keep you protected and perform well for years.

Glass verandas are available in many powder-coated colours, including white, grey, black, and other popular options that blend easily with modern or traditional homes.

You can also choose bespoke RAL shades to match your property perfectly. This allows complete creative control and helps your veranda complement your outdoor space.

Yes. A glass veranda provides dependable protection from rain, wind, and UV exposure, making your patio usable in most weather conditions throughout the year.

Optional extras such as heating, lighting, or side glazing increase comfort further. These upgrades create a cosy and inviting outdoor area, even during colder months.

Many glass verandas fall under permitted development when they meet specific size and placement rules. This means planning permission is not always needed for installation.

We are knowledgeable on glass verandas, so our installers can confirm whether your project needs approval before work begins.

The installation times vary depending on the structures’ style and size. Standard verandas are often completed within one or two days.

Larger or fully customised designs may take longer to assemble due to additional detailing. Your installer will provide a clear timeline based on your chosen specification.

Aluminium pergolas offer many options, including frame colours, LED lighting, heating, and side screens or glass panels for added comfort.

You can choose manual or motorised louvres to control shade and airflow, allowing you to tailor the pergola to your lifestyle.

Yes, aluminium pergolas are built to withstand rain, wind and intense sunlight, thanks to durable materials and protective powder-coated finishes.

Adjustable louvres help manage ventilation and shade, and many designs form a watertight seal when closed for all-weather use.

Absolutely, their strong structure and adjustable louvres offer summer shade and protection from rain during cooler seasons.

Choose from optional features like side screens, lighting or heating enhance year-round comfort, creating an outdoor space you can enjoy anytime.

No, aluminium is a durable material, meaning it will not rust, warp, or fade over time.

A simple wash with mild soapy water keeps the structure clean, while the powder-coated finish ensures long-term durability with minimal effort.

Laminated safety glass is the preferred option because it stays intact if damaged, preventing falls. Many systems also incorporate toughened laminated glass for added strength and impact resistance.

The glass thickness is typically determined by span and load requirements, ensuring full compliance with building regulations.

Yes. Juliet balconies are designed and tested to meet UK building regulations for fall protection. Our balconies that use laminated safety glass or strong metal balustrades are reliable for upper floor openings.

Proper installation is essential, ensuring all fixings and materials meet required load and impact standards to guarantee long-term safety.

Building regulations generally require a minimum height of 1100 mm for a Juliet balcony. This ensures adequate fall protection for openings above ground level.

Exact specifications can vary depending on design and materials, but installers must always comply with local safety and structural guidelines.

A Juliet balcony allows you to enjoy full-height glazing and French doors without needing external space for a traditional balcony. It increases light, airflow and the feeling of openness in upper rooms.

It’s also an effective safety solution for properties wanting wide openings while maintaining compliance with building regulations.

No, because the blinds are sealed inside the glazing unit they remain dust-free, unaffected by draughts or wind, while they don’t need much maintenance.

This makes them a great choice for busy households or anyone who wants a tidy, low-upkeep solution. You’ll never need to worry about tangled cords, bent slats, or constant cleaning—just smooth, reliable performance every day.

Generally no, because the blinds are sealed within the glazing unit during manufacturing. Retrofitting into existing sealed units is not usually possible unless the unit is removed and re-glazed appropriately.

For most homeowners, replacing the full glazed unit is the simplest and most effective way to enjoy integral blinds. This ensures a perfect factory seal, proper functionality, and the long-term durability these systems are designed for.

There are several control options, including cord/wand, magnetic slider systems, and fully motorised systems for blinds sealed in glass units.

Whether you want easy manual control or the convenience of powered operation, there’s a system to suit your lifestyle. Motorised controls are especially popular for bi-folds and large sliding doors, allowing smooth and effortless adjustment at the touch of a button.

Our blind screens are manufactured using high-quality aluminium, PVC and durable fabrics designed to last. These materials provide strength, smooth operation and a contemporary appearance.

Each component is selected to withstand everyday use while maintaining excellent performance and visual appeal.

Simply guide the fabric gently back into the runner and avoid using the blind until it sits correctly again. This helps prevent strain on the components.

It’s also worth checking the track for dust or debris, which can occasionally cause misalignment.

It’s best to avoid operating the blind fully while the window is open, as airflow can pull on the fabric and affect its movement.

Keeping the window closed during operation helps protect the mechanism and ensures smooth, reliable performance.