House extensions Sevenoaks

House Extensions Sevenoaks

Expand your home with one of our house extensions.

Free, Competitive House Extension Prices in Sevenoaks

Get A Quote, Today.

House Extensions in Sevenoaks

Our house extensions can help you create the home you’ve always wanted. Our designs give you the chance to get more space without having to move house. Instead, you’ll be able to add a new room to your home that’s designed around you, tailored around your needs and purpose-built for your property. Our house extensions can be anything you desire – a playroom, kitchen, living room, or even a dining area.

When you choose Thermaframe, we install house extensions at a competitive price. We’re a trusted, local company in Kent, and we offer high-quality extensions with reliable, 5-star customer service. Our products and installations are easy to rely on, as are the team who will manage your whole project. We’ll take care of drawings, surveys, and planning permission so you don’t have to.

Our friendly team will make sure your new extension is made-to-measure for your needs. And, with shorter lead times and lower travel costs, you’ll save money on your new space as well. You can rely on our installers to make your home feel more like the one you’ve dreamed of having. Visit our online quoting engine to get a house extension quote today!


House extensions
House extensions Sevenoaks

Features and Benefits

A Range of Uses

Our house extensions can suit any needs you might have in your home. You can tailor one of our builds to your home, making sure it’s perfect for any purpose. You could create a new home office, a bigger kitchen or even a gym, and our house extensions will make it stylish and comfortable. You can also customise it with unique brickwork, colours and roofing solutions.

Expert Service

By choosing Thermaframe to install your new extension, you’ll get expert service. Our team can provide useful advice and recommendations, while their skills and experience ensure your project goes smoothly. We’ll build your extension on time and around your schedule, working around your needs and not ours. As a result, you’ll expand your home without the hassle by going with us.

Bespoke Extensions

Thermaframe installs bespoke house extensions. As a result, no home we work on ever ends up being the same as any other. We don’t fit templates, and instead work with you to create a unique extension that suits your budget, reflects your taste and expresses your personality. You can also incorporate our aluminium and uPVC doors and windows into the design.

High Quality

Our house extensions are high-quality options for any home. We source our builds from market-leading companies, meaning you can benefit from leading performance across your build. Our house extensions meet and exceed building regulations, and they’re durable as well. Because of this, your design will be able to enhance your home for a lifetime.

Prompt Build

We don’t want our house extensions to take months to install. Because of this, Thermaframe is a company that will try and make the process as simple and as efficient as possible. We manage every part of the project for you to make it stress and hassle-free. Not only that, our skilled installers will fit your build in an agreed timescale as best they can.


We’re proud to be a local installer of house extensions in Sevenoaks. But what we’re also proud of is the affordable prices we charge for our services. Because of this, you can install the extension of your dreams into your home without having to blow through your budget. Our full range of designs and options are competitively priced to suit any needs.

True House Extensions

With Thermaframe, you get true house extensions for your property. Your new extension won’t feel like an afterthought that’s been bolted onto your home – instead, it’ll feel like a natural fit. Our extensions progress your property, matching your home’s design or creating a contrast. We can match any brickwork in your home to the bricks we build for your extension, too!

Local House Extensions Installers in Sevenoaks

We’re proud to be a trusted, local installer of house extensions and double glazing products of the highest quality. Our five-star installation service is competitive and better value than other installers – everything we do can be personalised to suit your needs. We’ll go above and beyond to help you at every step of the process. You can also use our decades of industry experience to ask us any questions you may have along the way.

House Extensions Prices Sevenoaks

Find out how much you can save on house extensions with Thermaframe today Use our online quoting engine to design your bespoke extension and get a quote in only minutes.

Alternatively, use our online contact form to leave a message with our team. And, if you’d like to speak to us directly, feel free to call us on 01959 534 720 for impartial advice and recommendations.

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uPVC Doors uPVC Doors
Composite Doors Composite Doors
Conservatories Conservatories
Aluminium Aluminium
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