skip to main content
Photos
Photos
Advice
Stories From Houzz
Houzz Discussions
Houzz Research
Sign In
Houzz Logo Print

House Extension Professionals in London

Expand your living space with a well-designed extension, custom built to meet your needs and preferences

Get Matched with Local Professionals
Answer a few questions and we’ll put you in touch with pros who can help.

Location (1)

Nearby Locations

Popular Locations

All Filters
London / 25 mi
Home Builders
House Extensions
1 – 15 of 2,089 professionals
123456789Next Page
2,089 Professionals

Featured Reviews for House Extension Professionals in London

Home Healers Ltd.
House Extension Professionals in London
Average rating: 5 out of 5 stars22 July 2021
“Ahmed and the team did a phenomenal job on the loft conversion. Very professional, efficient and meticulous attention to detail”
ASAP Renovation Ltd
House Extension Professionals in London
Average rating: 5 out of 5 stars22 October 2020
“ASAP have completed several project for us over the last few years on behalf of our own clients. I have found them to be very helpful and professional. The service has always been great and our clients have been very pleased with the quality of the work.”
NKD Construction Ltd
House Extension Professionals in London
Average rating: 5 out of 5 stars2 July 2020
“The team led by Nic were Honest, reliable and provided an outstanding service to a professional standard. Nik and the team rendered the rear of my house and painted it white. They listened to my needs and were efficient.”
Aspen Design & Build
House Extension Professionals in London
Average rating: 5 out of 5 stars6 January 2021
“I used Aspen for our project, it was our second move from a flat to a house. We bought a house which required a complete refurbishment, in addition we decided to extend the property to the rear along with a loft conversion. The works took 8 months to complete as the entire house was gutted along with front and rear garden landscaping. Aspen were exceptional to work with from start to finish, very accommodating with some additional alterations which we decided to carry out during the build. We would highly recommend Aspen especially as no compromise was taken with our previous home.”
TopBuildUK
House Extension Professionals in London
Average rating: 5 out of 5 stars13 March 2015
“Grat company all way round!!! From the time of planning, TopBuild UK provided us with best advises and the finishing work is outstanding. Prices are very competitive. Their name says it all- Top Build UK Another project coming up and TopBuild UK are my first and the only choice”
Active Builders London ltd
House Extension Professionals in London
Average rating: 5 out of 5 stars25 February 2018
“I am on my second project with Active Builders in South London. No matter what the size of project I would get these guys to do it. Trustworthy and very professional. Tom”
MoreSpace
House Extension Professionals in London
Average rating: 5 out of 5 stars29 January 2021
“We decided to choose MoreSpace to build our loft extension and were so glad we did. We were firstly consulted by Stuart Ellerby who gave us a thorough overview of what was involved in a loft extension and who is responsible for what during the project. His knowledge was first class and he spoke in layman’s terms and not jargon which we found very engaging and brought it to life. Once we agreed on the project, Stuart also kept in touch throughout with regular site visits and was also super responsive when we raised any questions. His aftercare has also been great. The team who built our loft was insane. The team was led by Jake and everyone in his team were super friendly and accommodating, whether it was popping up for a sneak peek on progress, asking any questions or looking to make slight adjustments. The finish of the job is perfect and exactly what we’d hoped for. They left the place clean and was complete within a much shorter time period than I expected. For such a large project, this felt like the easiest one I’ve had to undertake so far thanks to Stuart, Jake and his team. We did shop around with 4 other competitors and these by far have the best reputation and I’m glad I trusted the reviews. 5* Thanks Team!!!”
JP Refurbishment London Ltd
House Extension Professionals in London
Average rating: 5 out of 5 stars14 October 2023
“We selected JP for the full refurbishment of a large detached house in Fulham, including extensive bespoke joinery, painting, landscaping works, bathrooms renovation, kitchen design, flooring, re-pointing, plumbing, electrical, external work (roof and facade). Jorge & Jon are very experienced professional providing invaluable advice. His team is highly skilled with an attention to details second to none. Friendly an very supportive even after completion of the project. Strongly recommend”
R.A.S. Construction And Design Ltd
House Extension Professionals in London
Average rating: 5 out of 5 stars18 February 2019
“I have used Chris and his team at R.A.S Construction for several 'full service' projects (covering refurbishment, extending, plumbing, re-wiring etc) - each time the work and service has been exceptional. We received a detailed, competitive quote and the work was completed on-time to a very high standard. I would have no hesitation recommending them or using again. He provided references and gave the opportunity to view past projects (we were so impressed by the work and dedication that we were happy to have potential customers contact us and even view our finished projects).”
AG PARTNERS LTD (We Build Dreams)
House Extension Professionals in London
Average rating: 5 out of 5 stars13 November 2023
“I had the absolute pleasure of working with Anton and AG Partners for a comprehensive house refurbishment project. From the outset, their professionalism, transparency, and commitment shone through. The first thing that struck me was their excellent customer service. The team listened carefully to my visions and offered creative, practical solutions that truly resonated with what I had in mind. It felt like a genuine partnership - they didn't just provide a service, but truly collaborated with me every step of the way. The quality of the workmanship from AG Partners is second to none. Every inch of the finished product reflects meticulous attention to detail. The end result is a beautifully restored home that maintains its unique character yet meets contemporary standards of comfort and design. One aspect that notably sets this company apart is their integrity and commitment to timelines. Delays were communicated well in advance, and issues were addressed proactively. I was especially impressed by how efficiently they managed the project, demonstrating their superior project I had the absolute pleasure of working with Anton and AG Partners for a comprehensive house refurbishment project. From the outset, their professionalism, transparency, and commitment shone through. The first thing that struck me was their excellent customer service. The team listened carefully to my visions and offered creative, practical solutions that truly resonated with what I had in mind. It felt like a genuine partnership - they didn't just provide a service, but truly collaborated with me every step of the way. The quality of the workmanship from AG Partners is second to none. Every inch of the finished product reflects meticulous attention to detail. The end result is a beautifully restored home that maintains its unique character yet meets contemporary standards of comfort and design. One aspect that notably sets this company apart is their integrity and commitment to timelines. Delays were communicated well in advance, and issues were addressed proactively. I was especially impressed by how efficiently they managed the project, demonstrating their superior project management”
123456789Next Page
List your business here for free - Learn More
Builder FAQs
A house extension is a construction process that involves expanding the footprint of your existing home. This could be extending outwards, either to the side or rear of the house, or upwards by adding another storey. House extensions provide extra living space and can significantly increase the value of your property.

House extensions can be categorised based on direction, structure and function. The main types include rear extensions, side return extensions, wrap-around extensions, and double or single-storey extensions. More specific ones could be kitchen extensions, loft conversions, basement conversions, garage conversions or conservatories. Select the type that best suits your property and meets your space needs, if you are unsure, speaking with a local home extension builder in London.

Generally, house extensions are worth the investment. They provide additional living space and can dramatically increase the resale value of your home, often covering the initial investment cost. However, plan carefully and choose a reputable house extension builder to ensure a high-quality build that will add value to your property.

The cost of a house extension can vary significantly based on several factors, such as the size, complexity of the design, quality of materials used, and geographical location. However, as a rough estimate, a single-storey extension can range from £1,000 to £2,000 per square metre, whereas a two-storey extension can start at around £1,500 per square metre.

Planning a house extension involves several stages, including idea generation, design, planning permission, and construction. Consult with a house extension architect to create a design based on your needs and budget. Ensure to check with your local council about planning permissions. Finally, choose a reputable house extension builder to bring your vision to life.
Why Hire Home Builders on Houzz?
2,089Local Pros on Houzz Who Serve London
95,000+Total Number of Reviews Left by Homeowners
Are you considering a house extension? On Houzz, you can find an extensive selection of London house extension professionals near you, eager to turn your vision into a reality. Whether you're planning an extra bedroom, expanding your kitchen or designing a brand-new workspace, these professionals have the skills and expertise to make your project successful. House extension professionals include architects who can draw up detailed plans and builders who will execute them to the finest standards.

Choosing a house extension professional on Houzz ensures peace of mind, knowing that you’re in safe hands. They come highly recommended with a strong track record of creating bespoke, high-quality extensions in London in a wide range of styles and budgets. Whether planning a new kitchen extension, adding a new storey, or just wanting more living space, find your house extension solution with us.

United Kingdom
Tailor my experience with cookies

Houzz uses cookies and similar technologies to personalise my experience, serve me relevant content, and improve Houzz products and services. By clicking ‘Accept’ I agree to this, as further described in the Houzz Cookie Policy. I can reject non-essential cookies by clicking ‘Manage Preferences’.