House Extensions East Grinstead

House Extensions Sidcup

Expand your home adding style and functionality.

Free, Competitive House Extension Prices in Sevenoaks, Kent, London and Surrey

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House Extensions in East Sidcup

Enhance Your Sidcup Home with Quality Extensions

At Thermaframe, we specialise in installing high-quality house extensions that breathe new life into your Sidcup home. Our extensions are the perfect solution for creating additional space and significantly boosting your property’s market value. Instead of dealing with the stress and expense of moving, why not upgrade your current home with a custom extension?

Tailored Designs for Your Perfect Space

We empower you to design a bespoke extension that perfectly complements your home’s architecture and enhances your living space. Whether you envision a new home office, living room, or kitchen, our extensions seamlessly blend with your existing structure, offering both functionality and aesthetic appeal.

Trusted Local Installers

Thermaframe is proud to be a trusted, local installer with a stellar reputation for exceptional service. Nearly all our customers rate us with five stars, thanks to our dedication to delivering outstanding results. Our team of experts is committed to supporting you through every stage of your extension project, from initial planning to final installation.

Comprehensive Services from Start to Finish

We handle all aspects of your extension project, including planning permission, surveys, and room design. Our skilled installers provide expert on-site advice and meticulously cover every detail to ensure your complete satisfaction.

House Extensions Sidcup
House Extensions Sidcup prices

Features and Benefits

A Range of Uses

The beauty of a house extension lies in the new possibilities it offers your East Grinstead home. Whether you envision a new kitchen, home office, or gym, our extensions can make it a reality. We provide a wide selection of bespoke options, allowing you to design the extension of your dreams. With Thermaframe, the possibilities are limitless.

Expert Service

With decades of experience in fitting home extensions, we provide a smooth, convenient service that meets all your standards. Our team ensures fast lead times and works at your convenience, eliminating long waiting periods. Our friendly installers are respectful of your space and leave your Sidcup home spotless after completion.

Bespoke Extensions

Every detail of your extension can be customised to suit your style. Our design options allow us to create extensions that complement both traditional and modern homes. We offer bespoke brickwork, colours, finishes, and roofing solutions, giving you total control over the design process. With Thermaframe, you get the house extension you envisioned.

High Quality

Why choose anyone else when we offer the highest quality house extensions? We work with market-leading suppliers and use high-grade materials and hardware. This ensures our extensions exceed building regulations, resulting in robust, durable builds that perform for decades.

Prompt Build

At Thermaframe, we complete installations efficiently and thoroughly, without taking shortcuts or compromising on quality. Our installers ensure the build is done properly, standing the test of time and serving your Sidcup home as it should.


We proudly install house extensions at exceptional prices. As a trusted local installer, we avoid expensive costs like travel or supplies. Our range of design options and bespoke solutions ensures you get the build you want without a high price. You remain in control of the budget throughout the project, and our team is always on hand to support you.

True Extension

At Thermaframe, we ensure that your house extension becomes a seamless and fully integrated part of your East Grinstead home. Our extensive range of materials and bespoke designs enables us to create extensions that perfectly complement your property, making it difficult for new guests to even notice it’s an extension.

Local House Extensions Installers in Tonbridge

As your trusted local double glazing company in East Grinstead, we can offer affordable prices, short wait times and a premium product. From initial contact, our team will be at hand to help you with anything you need. We have many years of experience within the industry and can use this to your advantage. Get in touch today to find out more.

House Extensions Prices Sidcup 

If you are ready to get your home expansion project started, please take a look at our online costing tool. Here you can get a price that is tailored to your needs.

Alternatively, you may fill out our online contact form, and a member of our team will get back to you shortly with a quote.

To speak to us directly, please feel free to call us on 01959 534 720.

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