Extension Builders in Forest Hill

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (20 reviews)

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Some of our top rated extension builders in Forest Hill

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Zsolt
Rating: 4.7 out of 5
Extension Builder in Forest Hill
It is a family business with 20 years of experience. We have a wealth of experience in all areas of building construction, expansion and renovation.We rarely hire more than one client, so we can allow us to complete the project from start to finish in the right quality, in the right time fame. Traders are fully trained, respected and trusted. Contact us if you want your Dream Home to become a reality.
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Latest review:
Bathroom Fitting- 22 Sep 2025
I recently had my bathroom completely renovated by Zsolt and Mario and the experience was outstanding from start to finish. They were professional, punctual, and incredibly skilled—nothing was too much trouble, and their attention to detail was second to none. One of the highlights of the project was the walk-in shower they installed, It’s beautifully tiled, and gives the bathroom a sleek, modern feel. They kept the workspace clean, communicated clearly throughout. Zsolt clearly take pride in their work, and it shows in the final result. The bathroom looks fantastic and feels like a real upgrade to the home. I wouldn’t hesitate to recommend them to anyone looking for trustworthy, high-quality builders. Thanks again, Zsolt and the rest of the team, you’ve done a brilliant job.
M Murphy Build
Rating: 5 out of 5
Extension Builder in Forest Hill
Hello! My name is Mick. I have many years experience in all areas of construction. I enjoy what I do & love creating new spaces for people, so it has to be of high quality or else there would be no satisfaction in it for me! I have done extensions, sunrooms, renovations, lofts, bathrooms, kitchens and new builds.
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Latest review:
Extensions- 21 May 2019
Excellent workmanship, completed extension with bathroom in good time. Very pleased with the work!
Archicon Ltd
Rating: 5 out of 5
Extension Builder in Forest Hill
Archicon Ltd is a newly launched company with several years of experience and academic expertise in the construction industry. At Archicon Ltd, we specialise in delivering comprehensive design and build projects, offering a seamless integration of architecture and construction. Our services include architectural and building control drawings, as well as refurbishment and construction solutions. With a deep understanding of the industry, backed by extensive experience, we pride ourselves on creating bespoke solutions that meet our clients' unique needs. Our team is committed to producing designs that are not only aesthetically pleasing but also functional, sustainable, and compliant with all regulatory standards. At Archicon Ltd, we believe that successful projects are built on strong collaboration. By listening to our clients and understanding their vision, we create spaces that truly reflect their aspirations. Whether you require innovative architectural designs, detailed drawings, or refurbishment services, Archicon Ltd is here to bring your ideas to life.
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Latest review:
Archicon did a superb job of what was a tricky build. They reinforced joists and met every challenge and set back to finish the job on time! Which was remarkable. The work is exceptional with great care over the details. I am delighted and whole heartedly recommend them for their professionalism and skill.
V&B LANDSCAPE
Rating: 4.9 out of 5
Extension Builder in Forest Hill
Hi We are polite team and true fare builders, we have been in the business from 2014 . competitive prices. We believe in great customer service and offer our customers the best that we can in terms of planning, pricing and installing. We offer a free quotation, We are so confident in our work we are happy to give you work reference.
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Latest review:
Landscaping- 19 Aug 2019
Vladimir and his team made this project a very enjoyable experience. He understood the brief perfectly, and didn't bat an eyelid when it changed underway. I would highly recommend Vladimir.
Best Quality Double Glazing Ltd
Rating: 4.8 out of 5
Extension Builder in Forest Hill
Aluminium and UPVC manufacturers/ Suppliers and Fitters Single Doors / Double doors / French Doors / Bifold Doors / Conservatories / Roof Lanterns / Composite Doors All kind of Quality Windows and Doors at trade prices. We also deal with traders. Unbeatable prices with quality products
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Latest review:
Windows & Doors (uPVC & Metal)- 13 Jun 2024
Job done promptly and within the budget required. The window was put in place so quickly I didn’t have a chance to wipe the dust of it before it went in! Would suggest the fitter carries a cloth with him to wipe fingerprints and bits off the window before installation but really a small thing considering. Overall very happy with the job done. Thanks.
Top marks London Ltd
Rating: 5 out of 5
Extension Builder in Forest Hill
Professional, Local building company that provides quality workmanship and a personal service. We undertake all aspects of home improvement and general maintenance. We specialise in bathrooms, kitchens, garden rooms and landscaping. We have over 20 years of experience updating and maintaining homes inside and out. We pride ourselves in forming long lasting relationships with all of our customers and being a ‘one stop’ building company that can be trusted to improve and maintain your home from start to finish.
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Latest review:
Tiling- 17 May 2025
Mark and his team done a very professional job , which I am very pleased with . He consulted with me when unseen complications arises and finished the job to a very high standard . I would not hesitate to recommend Mark and his team to friends and colleagues who were looking to have work done . Very competitive price . All in all , a very pleased customer . Thankyou Mark and team .
URBAN SPACE BUILDING & PLUMBING LTD
Rating: 5 out of 5
Extension Builder in Forest Hill
We are a well-established local building company with professional tradesmen. We specialise in all aspects of residential building works and refurbishments such as bathroom, kitchen & full refurbishments, as well as loft conversions & extensions. We have an in house team of experienced and professional tradesmen with skills to complete any project to high standards, on time and within budget. All our work is guaranteed, and we are happy to supply references on request.
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Latest review:
Extensions- 19 Apr 2021
Michael and the team were really enthusiastic and professional throughout. The standard of finishes throughout the project is really high and the guys went the extra miles to get the project finished on time. Michael has also been great with coming round to sort any "teething problem" promptly and helping out with some follow up works.
Artesão Bespoke Carpentry
Rating: 5 out of 5
Extension Builder in Forest Hill
Hi I’m a carpenter of 20 years, who has worked on various sized projects, from home refurbishments to big site new builds. I carry out all aspects of carpentry, to name a few: kitchen fitting, bespoke wardrobes, tv units, book cases, laying floors. I am a reliable, trust worthy individual, with my own transport, working in and around London. Happy to offer free quotations.
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Latest review:
Bathroom Fitting- 29 Apr 2023
Many thanks to Kris abd Kane on a job well done. Despite the very tight schedule, they completely refurbished our bathroom transforming it to a high-end (hotel standard) wet room. Kris's original quote was very competitive. There were extras, but these were very reasonable. Once the job was completed Kris actually came back to install 4 or 5 grab bars without additional cost. Kris, and Kane are both very easy to get on with; thoughtful and calm characters. I travelled abroad during the job; Kris contacted me regularly and responded promptly when I reached out to him. As with any job' there were glitches but Kris's solution focus approach ensured a good outcome. Hope to work with this company again.
DTS Builders Ltd
Rating: 5 out of 5
Extension Builder in Forest Hill
All aspects of brick and block and stone work, new builds, extensions garden walls. Patios brick repairs, pointing. & refurbishments 20 years experience.
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Latest review:
Bricklaying- 28 Apr 2019
Dritan and his team we professional and completed a job well done. From the beginning Dritan was easy to work with , very friendly and approachable team. Dritan was extremely helpful in making a few suggestions to improve the wall and prevent future damage. I’m very pleased with the finished works. I would highly recommend Dritan and dts builders. Well done guys was great to work with you.
D A Lynch Building Services Ltd
Rating: 5 out of 5
Extension Builder in Forest Hill
Hi my name is Dwight. I'm here from D A Lynch Building Services Ltd. I am here to provide you with excellent building work and whatever else you have to do around your home. My company carries out work to the highest quality with professional workmanship.
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Latest review:
I was very pleased with this company so much so that they are starting a new job for me November 15. The building firms carried out a full loft conversion for me installing bathroom, brickwork, joinery, plastering, Roofing and installation of windows and double glazed doors. I have high standards and want everything to be completed in the same way, the workmen respected my home and always left if clean. My main contact was with the owner of the company Dwight Lynch, he was very flexible and Nothing was too much for him to do. He has an attitude which I like in a builder "customer not always right but must be happy" he provided me with ideas along the way and where things did not go to plan due to my own instructions he worked around the issue and provided suitable alternative options. I was very happy with the pricing of the job and feel that certainly I would recommend him and also I would use him again. He and his workmen were all trust worthy and I gave them keys to my house to carry-out work whilst I went on holiday. I had no concerns when I came back everything was as I left it.
Mario buider
Rating: 5 out of 5
Extension Builder in Forest Hill
I have a few years of experience in my work, My work consist in plastering, rendering, extension,painter, Bricks ,this is my basic works
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Latest review:
Fencing- 3 May 2022
Mario is an excellent fencer. He priced my job quite reasonably, it was more practical to change to whole fence than to fix a few existing posts, as when we pulled them out they were all rotting. He was careful whilst bringing materials through the house, and also looked after my plants and exercised care to them whilst digging and erecting the posts and fence. It was a pleasure having him do the job, professionally and with great care. I would recommend him and his team for similar kind of work.
Bono Construction
Rating: 4.9 out of 5
Extension Builder in Forest Hill
BONO CONSTRUCTION is a family run building and construction company based in south east. 20 years experience in business we pride ourselves in the service we offer. We have our own in house drawing office and structural engineers. BONO construction will guide you through your project from very start to finish. ********We design cafes, shops restaurant from start to finish include extractor systems electrical fire cctv and even logo printed on your plates,cups get in touch for a quote
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Latest review:
Bathroom Fitting- 25 Sep 2018
Mustafa is excellent! He did a fantastic job on our bathroom - so much so, that when we decided on a more extensive construction project, he was our first call. He is communicative, friendly, and hardworking. All his team are sweet guys and they did a great job for a great price. I cannot recommend him enough.
S & S Builders
Rating: 5 out of 5
Extension Builder in Forest Hill
Hi my name is Stephen and I have 30 years building experience specialising in extensions and loft conversions I do 1 job at a time and I am on site every day. I have extensive knowledge of structural engineering I also carry building insurance .and i am a member of the National federation of builders.
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Latest review:
Extensions- 18 Jun 2025
Steve and his team were excellent throughout. Turned up on time every day, very reliable. Excellent attention to detail and great pride in their work. All areas of building work undertaken to a very professional standard. We had new bathroom fitted, new fence and handmade shed, lean-to rebuilt from scratch with new roof, patio doors, new flooring, plastering, outside patio. Very happy with the work. Good value for money. Highly recommended would use again without hesitation.
UK
Rating: 5 out of 5
Extension Builder in Forest Hill
"I am K. Uraev, a qualified and experienced builder operating across London. With over 25 years in the trade, I take immense pride in delivering high-quality craftsmanship and a seamless, stress-free experience for every client. I specialize in residential projects, from: < Kitchen and bathroom renovations, < Double and single-storey extensions, < Loft conversion, < Bespoke joinery, alcove units, < Interior remodelling, < Painting and decorating, < Tiling, < Plastering, < Repair and maintenance, < Plumbing, < Electrical installation, < Decking, < Carpentry and Joinery < Roofing, < Flooring, < Drywall installation, < Wallpapering. My approach is hands-on and personal; as a self-employed builder, I am trying to ensure every detail meets my exacting standards. I believe in clear communication, transparent quoting, and leaving your home cleaner than I found it. Your project isn't just another job—it's my reputation." Please have a look at the photos provided. I can provide many more photos and references if necessary.
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Latest review:
Painting & Decorating- 27 May 2026
Kamil and his colleague were brilliant and I’d highly recommend them. We had a ceiling crack that was bowing, Kamil correctly identified the issue and fixed it. He also sanded and primed our ceiling and walls, ready for us to paint. Kamil & his colleague worked really hard to finish the job in just two days and were polite and tidy. He was clear and considerate about the costs.
Designs and Developments
Rating: 5 out of 5
Extension Builder in Forest Hill
At Designs and Developments we have a wide variety of services ranging from bathrooms, kitchens, flooring, decorating loft conversions and extensions.
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Latest review:
Kitchen Fitting- 31 Jul 2019
To say Nick is just a kitchen fitter isn’t doing his work justice, he’s a fantastic project manager and craftsmen as well. When we first met Nick he took 2 hours of his time running through all the options which was when we realised we were actually quite clueless! Although we hadn’t hired him at this point his advice was invaluable. We assumed this would mean Nick’s professionalism would mean he would be very expensive, this was not the case and he was actually a little cheaper than the other parties who quoted. Once Nick started it became apparent that he and his assistant Chow to great pride in their work and worked hard to get the job finished as quickly as possible to the highest standard. They left the site spotless at the end of each day. The result is a fantastic kitchen and flooring which we are extremely happy with. We are already thinking about the next renovation piece in our home and would love to use Nick again. Thanks Nick! Niall & Hannah
CoxCarpentry& Construction
Rating: 5 out of 5
Extension Builder in Forest Hill
Here at CoxCarpentry & Construction We are a small local business looking to expand around the UK . We do : Extensions, Loft conversion, full house renovation down to kictens,bathrooms and garden landscaping. We make all kitchen and bathroom units from scratch on site to how you would like it designed You dream it we make it .
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Latest review:
Plastering- 21 Jul 2023
The work carried out was rona great standard. Communication was polite and clear. Highly recommend.

Top rated Extension Builders

Our Extension Builders in Forest Hill, are rated 4 out of 5 based on 20 reviews from customers like you.

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Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What types of services are offered by local extension builders in Forest Hill?

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 Forest Hill 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 Forest Hill who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Forest Hill?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Forest Hill 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 Forest Hill extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Forest Hill home extension project is likely to cost.

Find extension builders in Forest Hill with MyBuilder

Hiring the right extension builder in Forest Hill 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 Forest Hill extension builders. Once your job is live, we’ll share it with home extension builders in Forest Hill who can express their interest.

Step 2: Compare different extension builders in Forest Hill

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

Step 3: Hire Forest Hill extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Forest Hill, 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.

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

What to ask a Forest Hill extension builder before hiring?

Before hiring an extension builder in Forest Hill or extension building company in Forest Hill, 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 Forest Hill?

An extension builder in Forest Hill 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 Forest Hill 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 Forest Hill?

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 Forest Hill 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 Forest Hill 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 Forest Hill

Can an extension builder in Forest Hill help with planning permission?

Yes, many extension builders in Forest Hill 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 Forest Hill handle everything from design to construction?

Many Forest Hill 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 Forest Hill help with materials and finishes?

Yes, most extension builders in Forest Hill 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.