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Striving for perfection

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Each and every one of our installations use the highest grade windows to ensure
Maximum Quality

Our Installations
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Adding More to your Home

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Extend your home with a luxurious conservatory extension,
And Bring Your Home To Life

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Giving you the warmest welcome

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Our selection of high quality doors offer you the perfect way to
Enter Your Dream Home

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The perfect Addition to any house

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Contact us today to find out how we can
Help Add To Your House

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Giving Your Home
The Look You Dream Of

We invest a lot of money in our homes, so why settle for poor-quality doors, windows, conservatories, warm roofs, roof lanterns, and many other products for your home? At The Certified Window Company, we provide a bespoke service across Kent, Surrey, Essex, London, Manchester and other parts of the UK.

Our focus is on quality because we want to do things differently from other companies out there. Too often, these companies are more focused on profit than quality but we like to do things the right way by putting your needs first. We understand how important it is to have your home looking perfect which is why you can put your trust in us.
Living room with window wall, black sofa and carpet

Installation

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Exterior view of a British townhouse facade

Windows & Doors

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Modern white front door with metal fixture handle and glass windows

Composite Doors

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Neat paved patio with sitting area and small garden near wooden fence

Ali Bi-Fold Doors

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Exterior Of House With Conservatory And Patio

Conservatories

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warm roof top down image

Warm Roofs

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interiors-of-the-modern-bathroom

Roof Lanterns

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Close-up detail image of a corner of new built brick cottage house roof with steel gutter rain system. Professional construction and drainage pipes installation and connection concept.

Cladding, Soffits, Fascia, Guttering & Cement Board Cladding

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We Set The Standard From Our Products Through to Installation

We know how easy it can be to cut corners but our aim is to provide a bespoke service that delivers in every way.
Our eye for detail and ability to install a range of products that transform your home, is the reason we believe that we are setting the standard.

We only use the very best products which means that they come from manufacturers that we can trust. They are designed using the latest materials and are built to last. However, with the very best products comes the very best installation service. We are committed to carrying out all installations to a standard that delivers complete satisfaction. In fact, we will leave your property in pristine condition and it will look as though we have never even been there - except for our workmanship and high-quality finish.
home-interior-with-flower-on-windowfully glazed conservatory on the side of a house on a beautiful sunny day
We are Certass Registered which means our work comes with Certass certification and all of our contracts are IBG guaranteed, giving you complete peace of mind. Our team has more than two decades of experience working in the industry and we have been operating for 26 years, so we know all there is to know about the work that we carry out.

We work with manufacturers such as Eurocell, Veka and Rehau, which means you’ll benefit from durability, multi-point locking systems and Argon gas filled double or triple glazed units.

Our Installations

Our
Previous Work

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No Pushy Sales
Just an Honest Service

We have been providing our first-class service to clients throughout Kent, Surrey, London and Manchester for many years.
We keep our quotations simple and ensure you understand exactly what you are receiving as part of the service. We’ll provide our expertise, advise on different options and help you to improve the look of your home. Whether it’s new windows, upgrading soffits and fascia or extending your home with a conservatory, we are confident that our service will deliver everything you expect and more.

Got A Project In Mind?
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