For a warm & tranquil home

Since 2002, double glazing has been a compulsory requirement for all homes in England and Wales with replacement glazing. Addressing energy-loss, stricter u-value limits were also introduced at the time; the lower the U-value, the more effective the window is to insulate your home. Double glazing from Seal-Lite can save North Somerset and Bristol homeowners over £100 each year on their energy bills. We can also repair your existing double glazing, if required.

With energy efficiency firmly in mind, Seal-Lite offer ‘A’ and ‘B’ rated double glazing; ‘A’ rating being the highest achievable score. As well as noticeably reducing energy bills, our proactive double-glazing system also prevents draughts whilst acting as an effective barrier to external noise.

Book an appointment

Range of textures & patterns

Reduced condensation

10 year guarantee

Glazing to suit all window styles

Double glazed units provide South West homeowners with exceptional energy confinement and noise reducing qualities, that single glazing simply cannot compete with.

Made to measure, our double glazed units are sure to keep you warm and cosy throughout the harsh winter months. Improving health and well-being right across the board, high quality double glazing generally lasts well over 20 years so the investment is definitely worth it; as long as it's properly maintained of course.

Enquire

Popular styles

For a more accurate representation of our range of styles then please visit our showroom.

Charcoal

Charcoal

Taffeta

Taffeta

Pelerine

Pelerine

Stippolyte

Stippolyte

Minster

Minster

Oak

Oak

Florielle

Florielle

Mayflower

Mayflower

Everglade

Everglade

Contora

Contora

  • Downloads
  • Security
  • Downloads

    Security

    Security

    When you choose first-rate double glazing from Seal-Lite, your comfort and security come first above all else – more often than not, security is the main reason windows need to be replaced. Made to measure, our double-glazed units are exceptionally robust and, above all, secure. Considerably strengthening home and business security measures further, property owners across the South West have complete peace of mind that their home is in safe hands; whatever life throws at them.

    Enquire
    Casement window handle close up

    Liam Davidson

    "An excellent service all round"

    An excellent service all round. Very friendly and took time to ensure the windows were exactly as I wanted. The windows themselves are well made and have completely transformed my house.

    Anthony Derrick

    "Thoroughly recommend Seal-lite"

    We had Seal-lite install full new double glazing including bi-fold doors a little while ago, excellent products and service. Their after sales service by Simon is very, very good indeed. Thoroughly recommend Seal-lite.

    Chris Townsend

    "Excellent service from start to finish"

    An excellent job done by Paul and his team. Transforming the front of our house with Georgian bar style windows and a fantastic new bay window. Finished off by a new door. Highly recommended excellent service from start to finish.

    Helen Marks

    "Very patient and understanding"

    I would absolutely recommend Seal-Lite Ltd. They have been so helpful helping me to match my new aluminium windows to the existing house. They have also been very patient and understanding with me having to delay installation for several months due to problems with my builder. Kevin fitted the windows very carefully and did an excellent job. A couple of minor things were no problem and resolved quickly to my full satisfaction. I would like to thank Paul and Pete and the team for being so so helpful. A pleasure to do business with this company – I wish all companies were like this.

    View more reviews on

    Google Reviews
    CertassQA National WarrantiesSwish Approved InstallerCEN Solutions Bronze

    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 craftmanship, 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!

    Get in touch
    Seal-Lite Showroom

    Visit our showroom

    It’s important for homeowners and businesses alike to actually see the quality of our products up close. So, why not come and see the products for yourself?

    Home under construction

    New build projects

    With an outstanding range of uPVC and aluminium products supplied directly to our trade customers, we are highly experienced in working alongside architects and contractors on new build projects.

    Trade installaters

    Trade supply

    As well as serving the local community, we have many established connections with various different trade customers across the South West who value the high-quality products that we produce.