Extension builders in Forest Hill

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in Forest Hill

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P.S. Building Projects Ltd
Rating: 5 out of 5
Extension Builder in Forest Hill
"WE ARE A HOME EXTENSION AND LOFT CONVERSION SPECIALIST. WE ALSO OFFER A COMPLETE BUILDING SERVICE! A family-run business, Quick growing building company with more than 20 yrs building experience. And we’ve been providing the highest quality work for our customers ever since. Everyone here at P.S.Building Projects Ltd is dedicated to meeting your specific requirements, delivering bespoke work on budget and on time. Which means you’ll enjoy peace of mind from start to finish."
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Latest review:
Conversions - General- 11 Oct 2022
We've been seriously impressed with Pawel and his team. They opened up our rear dining room/kitchen wall using an RSJ, following our engineer's drawings perfectly. They also did a few bits of plumbing and bricked up one of the windows at the rear, which is where the new kitchen will be fitted. They were incredibly tidy and really pleasant and courteous to be around, which my wife was so grateful for given we live in a busy family house (most builders are not like this...), I can't thank them enough! We will definitely be using them again in the not-so-distant future!
Heigar Homes Limited
No reviews yet
Extension Builder in Forest Hill
Internal decoration and home renovation service
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PROMAESTER LTD
Rating: 5 out of 5
Extension Builder in Forest Hill
Promaester Ltd specialises in home extensions and loft conversions. We take a straightforward, professional approach, with a strong focus on good workmanship, clear communication and keeping the project well organised from start to finish. Our aim is to carry out the work properly, keep disruption to a minimum, and deliver a finished space that fits naturally with the rest of your home.
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Latest review:
Extensions- 10 Oct 2026
Excellent builders, high quality work and good communication. The workmen were all very professional and kept the site tidy throughout. Thomasz is great to work with and resolves any issues quickly.
RJS Innovative Building Ltd
Rating: 5 out of 5
Extension Builder in Forest Hill
RJS Innovative Building looks for new designs and technologies available to give our clients the best solutions. We are happy to look at any project. We provide extensive knowledge on interior/exterior refurbishment, extensions/loft conversions, bathroom redesigns/installations, kitchen redesign/installations and revitalising property period features. We have connections with kitchen, tile, natural stone manufacturers FOLLOW AND SEE OUR WORK ON INSTAGRAM. @rjsinnovativebuilding
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Latest review:
Restoration & Refurbishment- 9 Sep 2021
The original job for a bathroom renovation turned into a much bigger job. Raphael and his team ended up helping design and renovate the bathroom, bedroom, living room and hallway. The team helped us source all the materials including underfloor heating and an incredibly intricate mosaic tiled floor in the hallway. They provided practical advise about what was best for the space, what would work within our budget and what would be easy to live with. For example, the team installed underfloor heating in the living room using wood effect herringbone ceramic tiles which would help get the maximum efficiency out of the underfloor heating whilst giving us the wooden flooring look we desired. Raphael and the team were excellent throughout delivering high quality work and we were more than happy with the final results. I would highly recommend Raph and his team.
Vkjengineers
No reviews yet
Extension Builder in Forest Hill
Hi I am civil engineer worked in lot of projects in London Including groundwork’s, drainage,foundation,under pinning, Paving &drive way etc, I had few lads work for me.
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Phillip Thomas O'Gorman
No reviews yet
Extension Builder in Forest Hill
Father and Son alliance, based in south London with over 30 years of Bricklaying experience. All aspects of brickwork, garden walls, extension and repointing undertaken, free quotations provided, and a friendly efficient service.
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JAJA Associates Ltd
No reviews yet
Extension Builder in Forest Hill
JAJA Associates Ltd are a premier architectural and property development firm delivering seamless, end-to-end residential solutions. By blending creative design, regulatory expertise, and master craftsmanship, we eliminate the stress of hiring separate contractors and maintain absolute project integrity from concept to completion. Core Architecture & Surveying Navigating building codes requires precision. Our architectural team streamlines the entire design phase, managing calculations, zoning reviews, and formal planning permissions to ensure regulatory compliance before construction begins. Loft & Property Extensions: Maximising vertical and horizontal footprints for bespoke, functional spaces. Home Conversions: Transforming underutilised layouts, basements, and garages into luxury living areas. Party Wall Surveying: Serving official boundary notices and managing legal frameworks to protect your property liability. Contractual Renovation & Finishes Our interior division executes structural designs with high-end craftsmanship. We handle complex kitchen installations, precision wall and floor tiling, and premium painting and decorating to deliver flawless property transformations.
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A2Z Property Improvement Ltd
Rating: 4.9 out of 5
Extension Builder in Forest Hill
A well establish Building Contractor with 24years experience, Dealing with all kind of Home Extensions, Loft Conversions, basement conversion, out buildings, electrical wiring, plumbing & boiler fitting, tiling, kitchen and bathroom fitting, roofing, K rendering, property refurbishment and decorating
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Latest review:
Extensions- 10 Apr 2021
Although I posted for a kitchen extension quote I decided that I would proceed with this at a later date. I did have a lot of other building work such as chimney removal that was undertaken by A2Z Property Improvement Limited. I am happy with the the work that was carried out. I'll certainly be reaching out to A2Z again for the extension once I'm ready to proceed. I would definitely recommend this company.
Baqar’S limited
Rating: 4.7 out of 5
Extension Builder in Forest Hill
Welcome to Baqars Limited! We're here to provide you with top-quality service and solutions tailored to your needs. Thank you for choosing us!
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Latest review:
Tiling- 22 Jul 2025
Good service. Would recommend!
Builds the thrills LTD
No reviews yet
Extension Builder in Forest Hill
Hi
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D&C Building
Rating: 5 out of 5
Extension Builder in Forest Hill
Top quality, reliable team and always in time !
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Latest review:
Fencing- 9 May 2022
Very nice and polite guy. He did his job as promised. The price was fixed and job was done neatly. He tidied away all the rubbish and out back everything in order which I was very pleased with. The communication was great and everything went very well. We enjoy our garden more than before now.
Express Moves
No reviews yet
Extension Builder in Forest Hill
All building work from loft conversions to basements. Internal restructuring, kitchens and bathrooms. Any job small or big undertaken. Approved building control work. We welcome any jobs you have and are happy to quote or advise free of charge. Honest and straightforward ethics. Very competitive rates.
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Angel Lopez Constructions Ltd
No reviews yet
Extension Builder in Forest Hill
At Angel Lopez Construction, we are more than just contractors; we are your dedicated partners, collaborators, and catalysts for success. With over 20 years of experience in the construction industry, we bring a wealth of knowledge and a commitment to excellence to every project we undertake. Our small, honest, and hard-working team takes pride in delivering high-quality results. By working with a select number of clients, we ensure that we can devote our full attention and resources to your project, guaranteeing personalized service and meticulous craftsmanship. We specialize in a wide range of construction services, including: - General Construction Work - Loft Conversions - Extensions - Roofing - Bathrooms - Bricklaying - Landscaping With our in-house structural engineer and Building Regulations expert, we ensure that all our projects are fully compliant and structurally robust. We carry comprehensive insurance coverage, including: - Public Liability Insurance: Protects against accidental damage to property or injury to third parties. - Employer’s Liability Insurance: Covers our employees in case of work-related injuries or illnesses. Discover how our expertise and competitive pricing can bring your vision to life. Contact us today to learn more about how we can assist you with your next project.
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Rares Cristian Lupu
Rating: 5 out of 5
Extension Builder in Forest Hill
I am a sole trader working for myself for more than 10 years. Family experience over 35 years. I deliver all services from painting, dexorating, bathrooms, kitchens, full house builds, loft conversions, rear / side extensions, landscaping, plastering and plumbing/electric. Reliable and respectful to all my clients!
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Latest review:
had an excellent experience working with Cristian on my bathroom project. From start to finish, his work exceeded all expectations. Cristian was professional, attentive to my needs, and incredibly detail-oriented. His craftsmanship and commitment to quality were evident in every aspect of the project, and he transformed the space beautifully. He kept communication clear and made sure everything was completed on time and according to my vision. I am thrilled with the results and highly recommend his services.
Spectra Homes Ltd
No reviews yet
Extension Builder in Forest Hill
We are specialised in house extensions, conversions, bathrooms refurbishment and all types of repairs work
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Olgert Doko
Rating: 4.8 out of 5
Extension Builder in Forest Hill
My name is Olgert and my team and I are ready to give you a quote, on any building needs - painting, plastering, tiling, roofing, extensions and many other services. We are friendly, reliable and professional and we care about our work. Give us a call today for a free quote. We are located in North West London and we have more than 15 years experience in construction.
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Latest review:
Tiling- 15 Sep 2021
Very professional and helpful from the beginning to the end. Great work, tiling was finished on time and to a great standard. Our new restaurant floor looks great and customers love the new look. Would definitely recommend and will use again. Thanks Team Doko

4.2

Top rated Extension Builders

Our Extension Builders in Forest Hill, are rated 4.2 out of 5 based on 20 reviews from customers like you.

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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.