01275 342 656

1 Tweed Road, Clevedon, BS21 6RR

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01275 342 656

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Suppliers & Installers of High-Quality Windows, Doors and Conservatories. Locally Manufactured in House.

We take pride in offering a comprehensive service that includes both the manufacturing and fitting of our windows and doors.
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We Manufacture Our Own Windows & Doors In-House

At Seal-Lite, we’re here to make improving your home simple, stress-free, and high quality from start to finish. We manufacture, install, and repair our own windows, doors, and conservatories at our specialist local factory, you get complete confidence that every product is built to last – and tailored to your needs.
As one of the leading manufacturers and installers of uPVC doors in Bristol, along with a full range of double-glazing products across North Somerset, we provide homeowners with reliable, energy-efficient solutions designed to enhance comfort, security, and kerb appeal.
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Window
Installation

Boasting a stunning range of aluminium and uPVC window designs and hardware, we’re confident that we have a highly energy efficient and tempting style to suit your South West home or client.
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Door
Installation

Our highly secure and thermally efficient range of aluminium and uPVC doors, and associated hardware, will protect and enhance your South West home or client’s home like no other.
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Conservatory
Installation

With a variety of colours and finishes, polycarbonate, glass and tiled roofing options to choose from, you or your client will be spoilt for choice with our charming range of conservatories.
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Design Your Own Composite Door

Build the door of your dreams today with our new Solidor composite door designer. Our user-friendly designer tool allows you to see your choices in real-time, making it easy and fun to create a door that’s uniquely yours.
Once you’ve designed your perfect door, fill out your details and one of the team will be in touch with a quote.
Design Your Door
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The Seal-Lite Difference

We are proud to manufacture our own windows and doors in-house. This approach allows us to maintain complete control over the production process, ensuring you receive only the highest standards of quality and craftsmanship.
By choosing Seal-Lite, you’ll get high-quality, British made products from our in-house craftsmen and a professional installation service from our friendly and respectful installation team.
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We’ll Recycle Your Old Windows & Doors on-Site Free of Charge

With our own on-site state-of-the-art facility, we’ll recycle your old windows & doors absolutely free of charge. This is purely because Seal-Lite are fully committed to improving the environment and therefore understand how sustainable uPVC is. So, when you choose Seal-Lite to improve your home you’re also doing your bit for the environment too.
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Why Choose Seal-Lite?

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Made in Britain

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10 Year Guarantee

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30 Years Experience

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No Pressure Sales

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Quality Products

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Aftercare Service

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Efficient Windows

uPVC or aluminium, windows from Seal-Lite are not only A-rated and thermally secure, they can also help homeowners and businesses save money on their energy bills through first-class eco-friendly qualities.
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Secure Doors

Whether you’re looking for a welcoming entrance door or a practical patio door, first rate security combined with stylish aesthetics is what we do best at Seal-Lite.
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Impressive Conservatories

Transform your home with an energy-efficient conservatory from Seal-Lite. As an approved Ultraframe installer, we design and fit a bespoke range of modern conservatories—including Victorian, Edwardian, and Lean-to styles across North Somerset. Choose from high-performance tiled conservatory roofs, decorative glazing, and a variety of uPVC or aluminium finishes tailored to your home’s aesthetic.
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Replacement Conservatory Roofs in Clevedon

If your conservatory roof looks tired, it’s time to consider replacing it with a more modern, high-performance roof replacement.

Once your new roof is installed, you’ll be able to maximise on natural light, filling your conservatory with daylight for a bright and airy atmosphere. However, unlike old conservatory roofs, a replacement roof will have thermal insulation to keep your conservatory comfortable in all weather conditions, offering UV protection features to protect your furniture and interiors from the harm of UV rays. What’s more, a replacement conservatory roof will help improve the value of your Clevedon home, thanks to the thermal benefits it offers.

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A Trustworthy Repair Service

Here at Seal-Lite, we can also offer a door and window repair service. Suppose you’re experiencing issues with your door or windows. In that case, whether that’s difficulty using them, you’re finding that your energy bills are increasing, suggesting less energy efficiency, or you have another problem, get in touch with our team.
We can replace broken window glass, faulty hinges, handles and locks and work on various window types, including casement windows, tilt and turn windows, bay windows and vertical sash windows. Plus, we can work on front doors, patio doors and bifold doors.
No job is too big or too small for our team; we’ll assess your door and windows, identify the issues and the best method of repair. All of our repair work is carried out with your needs in mind, and we’ll ensure that all work is carried out with professionalism and high standards.
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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.
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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.
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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.
Visit Us

Frequently Asked Questions

Double glazing products are known to increase the overall value of properties after installation, especially when installed in a large set of replacements such as windows and doors. You are able to increase the energy efficiency of your property and investing in products such as windows, doors, or a conservatory makes the property more attractive to potential buyers when it’s time to sell. Composite front doors are also a great choice because the front of the property is what people see when they visit and when they see the property listing. They also feature enhanced security – another benefit that tends to increase a property’s overall value.

Draughts from your windows and doors are often indicators that they are not as efficient as they could be and this could also indicate seal damage. Condensation on the inside of the glass is also an indicator that the seal is compromised and will likely require a replacement. Your windows and doors may just look dated, warped, or damaged. If you are having difficulty opening, and locking operating your windows and doors then this is another key indicator that it’s time to look for an upgrade – especially if they are approaching the end of their lifespan.

Upgrading from single glazing will always increase your overall energy efficiency and this means that you spend less to heat your home every year. Products deteriorate over time naturally and through extended use which makes them less efficient than a brand-new replacement. Doors and windows are built to last so your windows and doors may be very old and have dated thermal efficiency technology. All of these factors lead to improving energy efficiency when you install new double-glazing products.

Every home is different and this means that it’s not possible to provide indications of price before we arrange for your free quote. The cost will also depend on the materials being used and the number of products that you are looking to install. We will provide you with an accurate quotation in terms of cost when we discuss your project.

The key benefits of investing in new double glazing include significantly improved energy efficiency, leading to lower heating costs and a smaller carbon footprint. They’ll also offer lower heating costs, a smaller carbon footprint, and a quieter home environment.

Newer double-glazed windows will have stronger frames and better locks, too, and can also offer an increase in property value and marketability.

You will not need planning permission as long as your conservatory falls under ‘permitted development’ and covers less than 50% of the area of your home or is at the rear of your property.


You will likely need planning permission if you plan for your conservatory to cover an area greater than 50% of the area of your original home, and if you want your conservatory to be at the front or side of your home.

Yes, a well-designed, high-quality conservatory is an excellent way to increase the value of your property. This is because it increases the usable living space and overall marketability of the property.

Double glazing doesn’t have to affect the character of your home. Here at Seal Lite, we’re experienced in working on properties in Clevedon of all ages, and we can work with you to find the right double-glazed windows that fit your property and its overall aesthetic. The right windows can even enhance your property’s character and value.

An ‘A-rated’ window means that it is highly energy-efficient, minimises heat loss and reduces energy bills.