Extension Builders in Thornton Heath

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (21 reviews)

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Some of our top rated extension builders in Thornton Heath

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LSQ Construction Ltd
Rating: 5 out of 5
Extension Builder in Thornton Heath
We have over a decade of experience in the construction industry. We specialize in full house refurbishments including Extensions, loft conversations and new built. We have carried out project all over London specifically in east London and Essex. At LSQ, we pride ourselves on being a trusted company in the construction industry, delivering exceptional craftsmanship and solutions tailored to meet the unique needs of our clients. With years of experience in construction industry, we are committed to turning visions into reality through meticulous planning, quality materials, and skilled execution. Our team of dedicated professionals works closely with clients to ensure every project is completed on time, within budget, and to the highest standards. When it comes to building dream homes, we approach every project with integrity, precision, and a passion for excellence. Rest assured we are the builders where quality matters. Let us help you bring your construction goals to life. At LSQ, your vision is our mission.
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Latest review:
Absolutely fantastic. Syed and his team was always on time. Very reliable and extremely helpful. Syed always took the time to recommend me the best.
KB Kustom Builders Ltd
No reviews yet
Extension Builder in Thornton Heath
Build your dream home, at KB Kustom Builders LTD we aim to guarantee 100% customer satisfaction. With over 5 years experience in the industry we offer a range of services, specialising in landscaping, kitchens, bathrooms and full house refurbishments, both interior and exterior. We have built a great reputation with our clients over the years ensuring we deliver the highest quality of work and exceeding our clients expectations.
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Gs57 builder
No reviews yet
Extension Builder in Thornton Heath
I have good experience last 18 years this filed .lot of work do in my 18 years .I have good team and skilled worker
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Simply Extensions & Lofts Ltd
No reviews yet
Extension Builder in Thornton Heath
We're specialists in house extensions, refurbishments, and Loft conversions in South West London with the aim to deliver. Everyone that we use for finishing, is a trade. This gives you a very high-quality finish that is seldom achieved by a 'General-trade'. They are fast, clean, and produce showroom quality. These individual professionals are more than just people we work with, they are people we know.
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Alexi Construction Ltd
Rating: 5 out of 5
Extension Builder in Thornton Heath
At Alexi Construction, we take immense pride in being your trusted partner for a wide array of high-quality property solutions across the UK. Our commitment to delivering perfection to your proposition and exceeding all expectations is at the core of everything we do.
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Latest review:
Great work from start to finish, Suren was professional, reliable, and delivered high-quality service on time and on budget. Communication was clear throughout the works, and the final results exceeded expectations. Highly recommend Alexi construction to anyone looking for real quality work.
GDR construction solution ltd
Rating: 5 out of 5
Extension Builder in Thornton Heath
GDR Construction Solution Ltd provides a wide range of construction, repair, and improvement services for residential customers. and there is no project too big or small for our team. We are dedicated to delivering superior results at affordable prices,
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Latest review:
He done loft conversion which he did a great job. Completed it in 6 months which in 2 months less agreement. He kept it well done tidy. He done what we had asked to do and completed on. He had a good customer service easy to contact and sort out any issue. I would recommend him to anyone for his work.
U.K.R
Rating: 5 out of 5
Extension Builder in Thornton Heath
We are new to mybuilder but have been in the building Trade for 30 years as a Bricklayer, working for myself for the past 20 years Mainly dealing in Extensions and Brickwork. I have a team of tradesmen - a Carpenter Plumber, 2 good Labourers / ground workers.
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Latest review:
Can't speak highly enough of this company.work was not only complete on time but was finished to a high quality. Very polite and helpfull workers.hopeing to get this company back summer 2018 to do our rear extension. Great choice of builders from this site. Thanks my builder .
Future Home Constructions
Rating: 5 out of 5
Extension Builder in Thornton Heath
Future Home Constructions Ltd is a company that understands and appreciates every client’s uniqueness. We always work hand to hand with our clients to make sure that the final result is how you imagine. We specialize in: extensions, brickwork, plumbing, and much more. However, we do appreciate that you might not know if your project will meet your budget, so we offer a free of charge estimate on your next project. You don’t wait for your dreams to happen, you call us and we make them happen.
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Latest review:
Bricklaying- 25 May 2022
Top notch builders! We used Future Home Construction to build our large wrapround extension. They are a reliable family-owned company who showed up on time, worked hard, sometimes working 6 days a week including Bank Holidays. The team worked with great care and professionalism and were very informative, walking me through the process and offering me solutions to problems. We have been very impressed with the high standard of work carried out on our house and are delighted with the result. We would recommend Future Home Construction to anyone considering having work done to their house.
Fk skyline LTD
No reviews yet
Extension Builder in Thornton Heath
FK Skyline is a London-based construction company specialising in loft conversions, extensions, and full property renovations. We deliver high-quality workmanship, reliable timelines, and clear communication from start to finish. Our team is experienced, professional, and committed to meeting clients’ expectations while maintaining excellent standards of safety and cleanliness. We take pride in providing honest pricing, attention to detail, and customer satisfaction on every project.
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Vikram
Rating: 5 out of 5
Extension Builder in Thornton Heath
Vikram building works is a building firm that primarily focus on renovation and refurbishment, house extensions , bathroom fittings, kitchen fittings . Our main aims are delivering quality service on time and at consequences of our client. Satisfaction of clients is always our priority .
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Latest review:
Bathroom Fitting- 2 Feb 2026
Vikram is a very hardworking man that takes great pride in his work. He is very accommodating and always put our wishes first. From start to finish we had no issues and hope to hire him again in the future.
OWA CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in Thornton Heath
We are a medium sized groundwork company based in West London. We have over 18 years groundwork experience. We specialise in Drainage , Basements Reinforced concrete, Foundations, Block and beam , Paving , Fencing Etc . We pride ourselves in our work and customer satisfaction is our top priority.
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Latest review:
Groundwork & Foundations- 7 Feb 2026
Oli carried out the groundworks and demolition at my property and was on site every day with his crew, fully committed and hands-on throughout the job. I am an architect, and this was work on my own home, so my expectations were high. Oli met those expectations fully. He has a strong knowledge of groundworks and demolition, works carefully and methodically, and you can tell he genuinely enjoys what he does and takes real satisfaction in delivering the work exactly as required. He was always in a good mood, easy to communicate with, and a pleasure to have on site. I enjoyed discussing the project and hearing about other jobs he has completed over his 23 years of experience, which clearly shows in the quality of his work. I would highly recommend Oli for any groundworks or demolition works.
Avbase Building Services
Rating: 5 out of 5
Extension Builder in Thornton Heath
Avbase Building Services is an award-winning family business with over 24 years' experience in the building trade. We operate in and around Surrey, Sussex, London, and areas within the M25 circular. We cover all aspects of building to include extensions , complete house renovations, kitchen and bathroom fitting, open-plan living areas, garage conversions from start to finish, including wall knock-through, steel work, brick work, electrical work, tiling, plumbing, plastering, carpentry, and decorating. With a team of highly skilled builders and building trade specialists, our expert knowledge and project management skills, we ensure that all our clients receive an excellent level of service during their journey to the perfect home of their dreams. Nick
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Latest review:
Restoration & Refurbishment- 2 Oct 2024
Nick and team are a great outfit, they are professional and believe in doing a job properly. We had a new bathroom, kitchen tiling and a wall knocked through, all standards were high and they navigated a few surprises from existing problems well. Will definitely look to use again in future.
Daniel Petka
Rating: 5 out of 5
Extension Builder in Thornton Heath
We are a small team mainly specialize in extensions.All kind of roof work. Plumbing. Bathrooms. Tiling. 1st and 2nd Fix carpentry i.e doors, kitchens, flooring etc.
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Latest review:
Kitchen Fitting- 20 Apr 2019
Good communication... Good job... Good price.. On time and clean.. Will definitely use again.. Thank you Daniel.
PD Construction Services Limited
No reviews yet
Extension Builder in Thornton Heath
We deliver high quality domestic refurbishment services in all of London and the surrounding areas. We undertake all building work include: House Extensions and Conservatories Loft Conversions Full House Refurbishment General Building Joinery and Carpentry Painting, decorating Bathroom remodeling Kitchen refurbishment Foundations Garage conversions Residential Renovation Electrics and Plumbing Patios, paving and fencing
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VEIG
Rating: 5 out of 5
Extension Builder in Thornton Heath
We are a dedicated construction company specialised in delivering quality projects to meet the unique needs of our clients. We pride ourselves on our ability to adapt to the specific requirements of each project. We understand the importance of clear communication and collaboration, which is why we work closely with our clients from project inception through to completion. Regards VEIG
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Latest review:
Very professional and reliable people. They did a great job, the transformation of my house is incredible and I can be more happy with the result. I truly recommend VEIG for refurbishing your house.
Leonard goli
Rating: 4.7 out of 5
Extension Builder in Thornton Heath
Highty skilled construction with 10 years experience. Expertise in planning construction projects,defining scopes of work and labord costs. With plenty of experience in all aspencts of loft convention extensions barhrooms,kitchens,tiles,floor etc
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Latest review:
Decking- 1 Jun 2026
Extremely helpful and professional. Thank you

Top rated Extension Builders

Our Extension Builders in Thornton Heath, are rated 4 out of 5 based on 21 reviews from customers like you.

Quality screening

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What types of services are offered by local extension builders in Thornton Heath?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Thornton Heath for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Thornton Heath who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Thornton Heath extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Thornton Heath?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Thornton Heath will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Thornton Heath extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Thornton Heath home extension project is likely to cost.

Find extension builders in Thornton Heath with MyBuilder

Hiring the right extension builder in Thornton Heath with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Thornton Heath extension builders. Once your job is live, we’ll share it with home extension builders in Thornton Heath who can express their interest.

Step 2: Compare different extension builders in Thornton Heath

When you start receiving interest, review profiles of local Thornton Heath extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Thornton Heath extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Thornton Heath, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Thornton Heath extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Thornton Heath extension builder before hiring?

Before hiring an extension builder in Thornton Heath or extension building company in Thornton Heath, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Thornton Heath?

An extension builder in Thornton Heath should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Thornton Heath extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Thornton Heath?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Thornton Heath extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Thornton Heath extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Thornton Heath

Can an extension builder in Thornton Heath help with planning permission?

Yes, many extension builders in Thornton Heath can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Thornton Heath handle everything from design to construction?

Many Thornton Heath extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Thornton Heath help with materials and finishes?

Yes, most extension builders in Thornton Heath can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.