Windows Bristol

With our extensive range of custom-made aluminium and uPVC window designs, we are confident that we have a style to suit your home.

Replacement Windows in Bristol

Our varied collection of versatile window styles and associated hardware has energy efficiency at the heart of each design. From contemporary to more traditional styles, our double and triple-glazed replacement windows dramatically retain and conserve energy within homes and businesses. We install windows in Bristol and across the South West.

With energy efficiency firmly in mind, we only offer ‘A’ and ‘B’ window energy-rated glazing alongside our first-rate frames. Combined with some of the lowest U-values possible, achieve a U-value of just 0.8 with our triple-glazed units. We also have an extensive range of window Fab ‘n’ Fix hardware to choose from, including monkey tail, teardrop and connoisseur offset window handles, to name but a few.

Casement Windows

Our Aluplast casement window range are manufactured in-house for complete peace of mind, from fabrication to installation and aftercare. Also available in custom-made aluminium profiles, we’re confident that we have a colour and finish to complement your South West home’s individuality.

Vertical Sliders

Our Aluplast vertical slider window range is manufactured in-house, providing the ‘classic’ feel that timber vertical sliding sash windows are renowned for. Combined with modern and secure uPVC frames that are expected of modern South West homes today, they’re available in a variety of authentic colours and finishing touches.

Flush Sash

Our Aluplast flush sash window range are manufactured in-house, providing a smooth combination of authentic elegance with the practicalities of 21st century modern uPVC. This range is especially popular with South West homeowners looking to conform with local planning restrictions.

Excellent Aftercare Service and On-Site Service Engineer for Complete Peace of Mind

Always striving to look after our customers wherever possible, we are extremely proud of the high standards of craftsmanship, fabrication, installation and aftercare services that our highly skilled team continue to excel at delivering.

Our excellent aftersales service and on-site service engineer proactively deal with any issues that occasionally occur with our products directly – no job is too small for our service engineer.

Residence 9

Our luxurious Residence 9 timber effect window range is manufactured in-house and can be considered for use in South West Conservation Areas due to its authentic appearance. Capable of accommodating double or triple glazed units, this beautiful window system perfectly combines 19th Century flush sash window design with modern day security and energy-efficient qualities.

Residence 7

Versatile enough to suit both traditional and modern property styles, the elegant Residence 7 window range achieves a seamless flush sash finish both inside and outside. Particularly popular within South West new build projects, their sleek sightlines are also able to accommodate double or triple glazed units.

Tilt & Turn

Our Aluplast tilt & turn window range are manufactured in-house for complete peace of mind, from fabrication to installation and aftercare. Engineered with ease of use in mind, our tilt & turn window range is ideal for South West homeowners with space restrictions and safety issues.

Double Glazing

With a wide range of double-glazed windows available, you can be confident that upgrading your single or secondary glazed units will ultimately have a positive impact on your home life, simply by adding another pane of glass. You will also be able to make savings on your heating bills and considerably reduce your carbon footprint.

Triple Glazing

With a wide range of triple glazed windows available, you can be confident that upgrading your single, secondary or even double-glazed units will provide the ultimate soundproofing and insulating qualities possible.

Secondary Glazing

North Somerset and South West homeowners looking for a quicker alternative to double glazing can access secondary glazing from our range. An additional slim secondary window is fitted to the existing window, for additional insulation and soundproofing qualities.

Beautiful Windows Tailored to Your Style and Needs

We pride ourselves on being Bristol’s leading window specialists. With years of experience and a commitment to excellence, we offer a wide range of window solutions designed to meet your needs, enhance your home’s aesthetics, and improve energy efficiency.

Why Choose Seal-Lite?

Made in Britain

10 Year Guarantee

30 Years Experience

No Pressure Sales

Quality Products

Aftercare Service

Aluminium Windows

Our thermally efficient, custom-made Smart System Alitherm and Duotherm aluminium window ranges are perfect for South West homeowners looking for cost effective, low maintenance and weather-resistant windows.

uPVC Windows

With an extensive range of uPVC windows manufactured in-house, our uPVC window range is exceptionally safe, durable and energy-efficient. Furthermore, uPVC can be recycled more than 10 times before it loses its performance capabilities.

We are Committed to Reducing our Carbon Footprint

As well as our own on-site recycling facility, utilising ‘A’ rated double and triple glazed units helps homeowners across the South West reduce costly energy bills. Top quality glazing from Seal-Lite also emits less carbon dioxide into the atmosphere, in turn reducing carbon footprints of homeowners, businesses and organisations across North Somerset, Bristol and beyond.

Factory & Showroom in Clevedon

We understand how important it is to homeowners and businesses alike, to actually see the quality of the products up close. So, why not drop into the Seal-Lite showroom? Come in and see the products for yourself.

Frequently Asked Questions

How Do You Know When It’s Time To Replace Your Windows?

Knowing when to replace your windows depends on various factors. You may notice persistent drafts or cold spots near your windows, which can suggest that the seals or frames have failed, or condensation between the two panes of glass is a telltale sign of a blown seal. If your windows are increasingly difficult to open or are showing signs of rot and decay in the frames, it means that they are no longer providing adequate security or insulation. Beyond noticing physical damage to your windows, if your home is generally feeling colder and you’re concerned about keeping the house warm, or you’ve noticed that outside noise has become significantly louder indoors, this is another indication that your windows have reached the end of their lifespan.

What Material Is Best For New Windows?

The best material for your new windows will come down to balancing budget and style.

uPVC is an excellent all-rounder in terms of affordability and energy efficiency. It is highly durable, energy-efficient and low-maintenance, offering an excellent cost-to-performance ratio, and they can easily mimic the look of traditional timber windows.

Aluminium windows have a sleek and slim profile, which allows for more glass, making them ideal for modern properties. They’re also very durable.

Do You Need Planning Permission For New Windows?

In most cases in the UK, you will not need planning permission to install new windows, as this falls under a ‘permitted development’. However, you must ensure that the style, materials and safety standards are compliant. Therefore, replacing old windows with ones that look similar in appearance and size.

If your local council has made an Article 4 Direction in your area, which withdraws permitted development rights, you will need to apply for planning permission. Therefore, if you are in a designated conservation area, national park, or area of outstanding natural beauty, you may face additional restrictions. If you live in a listed building, you will need listed building consent for significant changes, whether internal or external.

Do You Need Building Regulations For New Windows?

Yes, you must comply with Building Regulations when installing new or replacement windows and doors in England and Wales. These regulations will ensure that new windows meet specific standards regarding thermal efficiency, safety glass, ventilation and fire safety.

A FENSA-certified installer will be able to ‘self-certify’ their work and sign off that it complies with regulations. They will notify the local authority and send you a certificate of compliance.

What Are ‘A’ Rated Windows?

‘A’ rated windows are high-performance, energy-efficient windows. They meet strict standards in terms of heat retention, solar gain, and air leakage, as they are certified by the British Fenestration Rating Council.

What Does ‘U-Value’ Mean?

‘U-Value’ refers to the rate at which heat can transfer through an element of a building, such as a wall, floor, roof or window. This measurement refers to how effectively a material acts as an insulator, so therefore, the lower the U-Value, the better the insulating performance and the lower the heat loss.

Will Fitting New Windows Add Value To My Home?

New windows are widely regarded as an effective and worthwhile investment that can significantly add value to your home. Installing new windows will boost energy efficiency, improve security and elevate the overall kerb appeal and appearance of your home.

Should Double-Glazed Windows Get Condensation?

Whether or not the condensation on your double-glazed windows is normal will depend entirely on where the moisture is located.

Condensation on the outside, exterior pane of the window is normal. This indicates that your windows are insulating your home well, keeping the outside pane cold.

When condensation occurs inside, on the room-side pane of your windows, this indicates high humidity. This is not a defect; it’s a sign that you need better ventilation or to lower the moisture levels in your home. This condensation may typically occur in your bathroom or kitchen.

If you have found that condensation is appearing between the two panes of glass in your double-glazed windows, this indicates a failed seal. Moisture becomes trapped between the two panes, compromising the windows’ efficiency.

Which Window Material Is Easiest To Maintain?

Both uPVC and aluminium windows are widely considered to be some of the easiest materials to maintain.

uPVC is highly resistant to rot, rust, warping and corrosion, and will only need to be wiped with a damp cloth to remove dirt. These windows last for decades without degrading, roughly around 20 to 35 years.

Aluminium windows require very little maintenance, as aluminium is exceptionally durable and weather-resistant. This makes it ideal for harsh weather conditions. To keep these windows clean, simply clean them occasionally with soapy water, and this will help your aluminium windows to last around 40-50 years.

What Guarantee Does Your Windows Come With?

Our windows come with a 10-year guarantee.

How Long Does Window Installation Take?

Our team will take great care of your property whilst installing your windows. We’ll be as non-disruptive as possible, treating your property with the utmost care. We’ll aim to install your windows as efficiently as possible, keeping you up to date with the timeline and when installation will be complete.

What Double Glazing Accreditations And Standards Should I Look For?

When you’re choosing a window company, look for specific, government-authorised and industry-standard accreditations. These will ensure that your windows meet legal building regulations, energy efficiency standards, and security requirements.

FENSA, Fenestration Self-Assessment Scheme, is the most common government-authorised certification. A FENSA-registered company will ensure that the work complies with Building Regulations without having to undergo a local council inspection

CERTASS is a direct alternative to FENSA. It’s another government-approved Competent Person Scheme. CERTASS-registered installers are vetted for quality work and knowledge of building regulation compliance.