Discover a Beautiful Range of Double Glazing Products

uPVC Double Glazed Windows

Flush Sash Windows

Our flush sash windows are perfect for properties in conservation areas, listed buildings and heritage homes. You can discuss with us your specific needs. We are experts and will be able to tailor our products to suit your personal needs. This is ideal if you’re searching for a way to feel warmer for longer in your home. These profiles reach a U-value as low as 1.3.

Sliding Sash Windows

We supply and fit a beautiful range of sliding sash windows. They are characterised by their slim design that lets the sun pour through the double glazing. This is at no detriment to the effectiveness of the installation. The unique locking system and U-values that reach as low as 1.0 improve performance.

Casement Windows

Opt for these enduring and popular profiles. Casement windows are a great addition to our range of double glazing products. This is because they are versatile and adaptable, offering a wide range of configurations that is ideal for homeowners. We are confident that you will be able to find the perfect solution for your Leigh-on-Sea project.

Aluminium Windows

For an alternative to uPVC double glazing, our aluminium windows are ideal for strength, durability, security and aesthetics. These are stronger by nature which means that you will have a larger space for glazing to be fitted. Opting for this will enforce a contemporary style that is built to last. Get in touch with us today for more information on this profile.

Why Choose Seemore Glass?


Reliable Expert Knowledge

We have a vast amount of experience in the double glazing industry. We know what we’re talking about. We are a reputable local company in Leigh-on-Sea and the surrounding areas that are here for you. Check out our reviews page to hear what others are saying about us.


Outstanding Double Glazing Products

We work with only the very best double glazing manufacturers to ensure that our clients get the best quality around. Our installations are durable and will last for many years to come. Thermal performance, enhanced security and more come as standard.


Our Ongoing Commitment To Quality

Here at Seemore Glass, we only employ experienced and fully qualified fitters. We have made sure that all our products are thoroughly tested for your peace of mind. They meet and exceed the standards set in the industry.


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Contact us directly to see how we can help, or try our online quoting tool to get an instant online price in minutes!

Happy Customers

Very good service from ordering to delivery. Fitting completed in specified time with no mess or damage. Excellent. Would use Seemore again with no hesitation
Mr Trew - August 9, 2018
Excellent service from ordering delivery and fitting. Whole house now completed by Seemore. Wouldn’t hesitate to use them again or recommend them to others.
Jackie Trew - August 10, 2018
The team that came round were excellent, hard working and polite.
Mr Aylott - July 22, 2018
I was very happy with the quote through to installation, it took marginally longer than expected to install however this was no bother for me. I would certainly recommend Seemore Glass.
Mr Westgarth - July 19, 2018

Introducing Our Selection Of Double Glazed Doors

Composite Doors

  • Choose from a selection of 23 exterior and interior colour shades. This will give you incredible control over the customisation of the door. Decide on something that seamlessly blends in or contrasts beautifully.
  • Many composite doors we provide in our double glazing range are Secured By Design accredited. This is a scheme run by the UK police to highlight high-performance products to lower crime rates across the UK.
  • These from doors emulate the look of traditional timber installations. Enjoy enduring aesthetics that will be sure to stand the test of time.
  • These have been carefully tested to meet PAS 24:2016 specifications. This makes them a door that is sure to protect you and your family with ease.

Patio Doors And Bi-Fold Doors

  • Our aluminium bi-fold doors provide a sleek and stylish aesthetic that is unrivalled by other installations. Featuring five stunning RAL powder coatings, you can be sure that the stunning visuals will not be affected over time.
  • If you’re looking through our double glazing range for patio doors, we’re confident that we won’t disappoint you. Your Leigh-on-Sea project will definitely benefit from our installations.
  • We offer these products in a range of materials, including timber, uPVC and aluminium. Get in touch with us today to find out more information about this range of beautiful products.

Double Glazed Conservatory Roof

Industry Leading Roofs

Conservatory Roofs

As part of our double glazing range, we also have a fantastic, high-performance range of conservatory roofs. These can incorporate different styles and can be retroactively fitted or part of a new build.


Rooflights are slim and eye-catching. They invite in a flood of natural light that can help you to rely less on artificial lighting. These are quick and easy to fit so we won’t take long installing this stunning addition to our double glazing range.

Lantern Roofs

Add a feeling of grandeur and elegance with our lantern roofs. These will extend the height of your flat roof extension, making it feel bigger and more spacious. These reach low U-values, as low as 1.0. Get in touch with us today for more information.

Searching For Flat Roofs?

We don’t just fit double glazing for your home improvement projects in Leigh-on-Sea. We can also install flat roofs for extensions. These are ideal, especially if you’re looking to have a roof lantern or some form of roof light installed.

Reach out to us today for more information.

Double Glazing Prices, Leigh-on-Sea

Use our online contact form to get in touch with us today. One of our helpful experts will give you all the vital information that you need when it comes to our double glazing.

Alternatively, you can use our special design tool that will build a quote to your specifications.

We look forward to hearing from you very soon!

Latest News

Approved double glazing installer Essex

Approved Installer in Essex

November 29, 2018

Seemore Glass Ltd Limited is proud to be able to say we are Approved Installers for both Conservatory Online Prices and Double Glazing on the ...

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November 18, 2018

We know that finding a reputable double glazing company in Leigh on Sea can be difficult to choose between multiple of companies that are on ...

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November 16, 2018

We know that finding a reputable double glazing company in Brentwood can be difficult to choose between multiple of companies that are on display ...

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Browse Our Gallery

Get inspiration for your home, and see how good our products look when they are installed by checking out our gallery.

Industry Leading Accreditations

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