We are changing the way you buy double glazed Windows & Doors!
No more pushy salesmen, just choose the perfect upvc windows and doors for your home
and get an instant price online in seconds. Buy Your Way!

Buy Double Glazing

Double glazing quote

Fitter Windows gives you the hassle free approach for purchasing your double glazed windows and doors. No invasion from any sales people to your home, just 3 easy steps for an instant online price.

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Chat to an expert

Our live chat offers a unique way to present and discuss the options available for your double glazed windows and doors.  Our team of experts are online waiting to answer your questions.

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Windows for your home

We can arrange a visit to your home, with our no pressure approach. We can visit a large area around Kent, Essex, London, East Sussex and the surrounding areas. Get in touch to book your appointment.

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  • Beautifully fitted, great guys! Job well done, I would recommend you to everyone.

    Bimks Cm77
  • A friend recommended Fitter Windows to me, I managed to get a price for my new front door almost immediately online. Once I ordered the service has been great and I couldn't be happier with my door and the team that installed it for me.  Thanks Fitter Windows, I will be recommending you to my friends too.

    John CM11
  • Thank you for your excellent service! We are delighted with the new door, and we are proud to display your advertising board in our front garden! Already, we have seen people admiring the door so hopefully you will get plenty of new clients! We will certainly recommend you to our friends and family.

    Gloria Scheef CM19


We have a wide range of double glazed windows. View more information on our full range of uPVC windows and the different available styles.

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From uPVC doors through to our stunning double glazed patio doors, we have every style you can imagine to choose from, perfectly tailored for your home.

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Looking for an instant price for your conservatory? Look no further.  Read on to find more information about our different styles and designs available.

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Orangeries are becoming more and more popular, giving a perfect blend between the lightness of a conservatory with the security of a full extension.

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We have a wide range of aluminium windows and doors available, giving you a modern feel for your property with a more slimline style for better visibility.

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Our timber windows and doors are perfect to give your home that traditional look and feel. Perfect for conservation areas, period properties and listed buildings.

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Triple Glazing

Triple glazing is the latest in energy efficiency.  These triple glazed windows and doors have been designed to stop heat escaping from your home, helping lower your heat costs.

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uPVC Front Doors

uPVC Front Doors are so popular, with their easy to maintain and high security features.  We have a great range of uPVC doors in all different styles and colours.

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Double Glazed Windows & Doors

Fitter Windows is no ordinary replacement windows and doors company. Based in Dartford, Kent, we have finally brought the industry into the 21st century! We have the answer to the age old problem of troublesome double glazing sales reps spending hours on end in your home, in some cases pressurising you into agreeing to a contract for something you have had no time to think about. This is the case with many other glazing companies all over the UK.

Fitter Windows is able to give YOU the control over purchasing your triple glazing or double glazed windows and doors. By using our unique online purchasing system. You can find a price for everything, from your double glazed windows through to uPVC Front Doors. We give you the option to measure, design and receive an instant quotation for your double glazed windows and doors, which you can then turn into an order at any time with your unique reference number. Once you place your order, our in-house team of experts will contact you to arrange a visit from one of our technical surveyors in order to have your bespoke windows made. The next step is to arrange for the installation of your ‘A’ Rated, energy saving windows and doors in your home.

Fitter Windows is different in every way to other double glazing companies. Not only from our approach to selling, but also the cost. Our price is fixed with instant prices given online. No more starting at a ridiculously high price and offering you what may appear to be the deal of the year. We just offer you a very fair price for our very high quality replacement windows & doors.

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Double glazed windows