Kingsbourne Windows & Doors

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uPVC Windows, Harpenden

Our impressive range of uPVC windows is designed to complement your Harpenden home. We offer a full collection of incredible styles, all of which offer incredible performance features to enhance your property and your lifestyle.

Our incredible uPVC windows will transform your home, so read on for inspiration for your home improvements.

Key uPVC Windows Features

  • Huge selection of colours & finishes available
  • Thermally efficient to save you money
  • Secure internal glazing and Yale locks
  • Ten year insurance backed guarantee
  • Highly trained specialist installers
  • High performance modern uPVC

uPVC Windows Harpenden


High Performance uPVC Windows

Exceptionally Efficient

Our uPVC windows are crafted from the Liniar profile which makes them exceptionally energy efficient. These windows are capable of the very highest Window Energy Ratings, enabling you to enjoy a warmer and more cost effective home.

Impressive Security

The Liniar uPVC window collection features hidden strengthening technology which makes sure the profiles are strong and robust. We couple this with advanced locking systems from Yale to ensure your home and family in Harpenden are fully protected.

Eco-Friendly Double Glazing

When you choose our uPVC windows at Kingsbourne, you will be able to have peace of mind that your new double glazing is eco-friendly. Our uPVC windows are completely recyclable and they are also effective at lowering your carbon footprint.

Stylish Finishing

Our uPVC windows are completely tailored to your specifications. You will be given a range of colour options and wood effects as well as hardware and glazing options to choose from, creating the most perfect double glazing installation for your home.


uPVC Windows Harpenden


A Range of uPVC Windows Styles

At Kingsbourne, we are double glazing experts, which means we are able to offer a vast range of uPVC windows styles to our Harpenden customers. You can choose from a variety of designs which will enhance the character of your home.

We are proud to offer our customers a full remit of options, enabling you to create the perfect double glazing to complement your style and your requirements. You can choose from heritage windows such as sliding sash windows, flush sash windows and sash horn windows.

We also offer simple, yet elegant designs such as our casement windows and tilt and turn windows. Finally, if you are looking for something a little chic, we offer French casement windows and bow and bay windows. You’re sure to find the perfect one for you.

Our windows include traditional designs, timeless styles and contemporary features. We even offer a range of truly authentic replica windows which are mechanically jointed. With so many styles on offer, you are sure to find the right uPVC windows for your Harpenden home in our collection.


uPVC Windows Harpenden


Outstanding Performance from uPVC Windows in Harpenden

Our uPVC windows at Kingsbourne are a brilliant option for cost effective double glazing. Not only will they help you save money on your heating bills thanks to the exceptional thermal performance, they are also fantastic for long term performance.

These spectacular windows are crafted to the highest standards to ensure they will last for many years to come. They require minimal maintenance, just a simple clean every now and again, and that’s all there is to it to keep them in optimum condition.

The superior quality of our Liniar uPVC windows is underpinned by an insurance backed ten year manufacturer’s guarantee. These windows are built to last, however, if in the unlikely event of your windows developing an issue, you will be covered.

uPVC Windows Prices in Harpenden

At Kingsbourne, our uPVC prices are tailored to your Harpenden home, allowing you to choose the perfect blend of costs and features to meet your needs. We offer competitive quotes to our customers too, so that you can count on getting excellent value for money.

Take a look at a tailored guide price with our online quote system. Just enter your specifications into the design tool, and in a matter of moments, you will be given a personalised quote. We strive to make things as cost-effective as possible for you.

If you prefer, you can also contact us. We have a friendly and well trained team on hand to support you with your double glazing needs. They are experts on uPVC windows in Harpenden, and will get you started on your home improvements with no pressure and no obligation.

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Happy Customers

  • Happy Customer Home Improvement Luton

    "They're quality fitters done a wonderful job installing ' A ' rated windows and composite doors with the minimum amount of disruption. We are very happy once again with the personal but professional service of the local company, that's been going over 20 years. We will certainly be recommending Kingsbourne Windows to all our family and friends"

    Mr & Mrs Mcdonagh - Luton

  • "The installation I saw at my friend's house was beautifully installed and the cost was realistic for 'A'rated products.Now mine has been completed l would recommend this excellent,local manufacturing company Kingsbourne Windows to all my family and friends"

    Louise Turnbull - Luton

  • "Excellent 'A' rated products backed up by a professional but personal service from start to finish. Now completed with the minimum fuss by their own quality craftsmen we would recommend the local manufacturing company Kingsbourne Windows."

    Mr White - Luton

  • "They fitted beautiful' A ' rated products at our friends home, all with multi - point locking handles and a 10 year guarantee .Now our installation has been completed we would also like to recommend this excellent local company Kingsbourne Windows to all our family and friends"

    Mr & Mrs Stark - Luton

  • "They ticked all the right boxes. beautiful 'A ' rated windows and composite doors at realistic prices from a local company that's been going over 20 years. We will certainly be recommending Kingsbourne Windows to all our family and friends"

    Mr & Mrs Wood - Caddington

  • "With so many glazing companies out there, we wanted a local long established company that makes their own ' A ' rated products at a price we could afford. Now superbly installed by their own high quality fitters, we will certainly be recommending Kingsbourne Windows to all our family and friends"

    Mr Morrison - Luton

  • Happy Customer Bay Windows Luton

    "Our son recently had beautiful 'A ' rated windows and doors installed at his home. He highly recommended them for their top quality fitters and professional after sales service. Now completed, we will also be recommending Kingsbourne Windows to everyone."

    Mr & Mrs Mohit - Luton

  • Happy Customer Double Glazed Windows Luton

    "We wanted a local manufacturer of 'A ' rated products at realistic prices. Now superbly installed by their own fitters we would recommend Kingsbourne Windows to all our family and friends"

    Mr & Mrs Furness - Barton

  • "Their quality fitters done a wonderful job installing ' A ' rated windows and doors with the minimum amount of disruption.We are so pleased once again with the personal but professional service of the local company, that's been going over 20 years, we would also like to recommend Kingsbourne Windows to all our family and friends"

    Mrs Burke - Luton

  • Happy Customer Double Glazing Luton uPVC Window

    "We are so happy again with the personal but professional service,at a reasonable cost, that we would certainly like to recommend Kingsbourne Windows to all our family and friends"

    Mr Ingram - Luton

  • Happy Customer Double Glazing Luton Door

    "My brother had all his windows and doors beautifully installed by top quality fitters.All 'A' rated products with outstanding personal but professional service from a local company. We will now also recommend Kingsbourne Windows to all our family & friends"

    Mrs Mistry - Luton

  • Happy Customer uPVC Door Luton

    "With so many companies out there,we wanted a long established company that make their own'A' rated products at a price we could afford. Now the installation has been expertly fitted by Matt & Colin we are so pleased we have ordered new fascia, soffit & guttering. We would certainly recommend Kingsbourne Windows"

    Mrs Lush - St. Albans

  • double glazing door quote luton

    "Quality ' A ' rated products are only as good as the installers who fit them. Kingsbourne Windows done such an excellent job last time, and at a very reasonable price, we decided to use them again. We would certainly recommend them to all our family and friends"

    Mr & Mrs Nield - Luton

  • composite door prices luton and harpenden

    "They done such a lovely job installing ' A ' rated windows and composite doors in our last 2 homes, and at realistic prices, we would certainly like to recommend this excellent local company Kingsbourne Windows to anyone who wants a personal but professional service"

    Mr & Mrs Jones - Luton

  • uPVC casement windows luton

    "I wanted a good local company that makes their own ' A ' rated windows and composite doors at a price that I could afford. Now superbly installed by their own fitters within four weeks I will certainly be recommending Kingsbourne Windows to anyone who wants a free quotation"

    Mr Smith - Luton

  • "We was looking for a local well established company that can make, supply and fit ' A ' rated windows at a reasonable price. Now superbly installed by Colin and Brian , with the minimum amount of disruption.We would like to recommend Kingsbourne Windows to all our family and friends"

    Mrs Patel - Luton

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uPVC Doors uPVC Doors
Composite Doors Composite Doors
Aluminium Aluminium Bi-Fold Doors
Conservatories Conservatories
Roof Lanterns Roof Lanterns
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Please help us help our local nurses & carers by bidding on a new Composite front door of your choice!

We will donate all this money to the Just Giving page. If you don't want to bid but want to donate, you can do so. You will receive a 5% discount on any future orders which will be valid for 12 months.

All the money raised will be donated to the Luton & Bedford hospitals and the Keech Hospice in Luton. Good luck with your bids and thank you for your donations!. Closing date of the auction will be 15th May at midday. Please make auction bids on our Facebook page.