Extension Builders in Forest Hill

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (20 reviews)

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Some of our top rated extension builders in Forest Hill

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Sean Sharkey
No reviews yet
Extension Builder in Forest Hill
We are a team of reliable and friendly builders, who offer a straight forward, courteous and efficient service. We believe in good time keeping, a clean and tidy environment with minimal disruption. We can build anything from a single bookshelf to a complete extension.
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Cos construction and Maintenance
No reviews yet
Extension Builder in Forest Hill
Cos construction and Maintenance can help you with your bathroom fitting, carpentry, extensions, handyman & kitchen fitting request in South Ockendon and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with Cos construction and Maintenance now to discuss your needs and arrange a quote.
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PJL carpentry and building
No reviews yet
Extension Builder in Forest Hill
A family run business that provides all aspects of carpentry and building services provided around Surrey and surrounding areas
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Rose Renovations
No reviews yet
Extension Builder in Forest Hill
here at rose renovations we are more than happy to come and meet our new customers and supply a free quotation for any building work. all building work can be carried out by us.
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Lan Lin
No reviews yet
Extension Builder in Forest Hill
We are a team of qualified civil engineers with more than 10 years of experience in building construction and property improvement services. Our work includes house builds, extensions, loft conversions, shed , greenhouse construction, furniture installation, repairs, and a wide range of handyman services. We are reliable, hardworking, and committed to delivering quality results for every project. Customer satisfaction, professionalism, and punctuality are always our priorities.
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McMahon Brickwork
Rating: 5 out of 5
Extension Builder in Forest Hill
I specialise in extensions, new builds, front garden walls, patios, Block paving heritage work and any Brickwork repairs. I can Guarantee very high standards of work.
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Latest review:
Bricklaying- 18 Jan 2026
Luke was very flexible with planning and did a nice job rebuilding the wall with the existing bricks
Oakview Developments
No reviews yet
Extension Builder in Forest Hill
We have over thirty years experience in the building trade on a wide range of projects consisting of: Extensions Loft conversions Landscaping Carpentry Brickwork Kitchens Bathrooms
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Mg groundworks
No reviews yet
Extension Builder in Forest Hill
Father and son ground works team anything from footings to steel work Inclusive - driveways -patios - drainage - fencing - machine driver Many years of experience small to large projects taken on Full building projects taken on too From new builds to conversions
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j &k builders ltd
No reviews yet
Extension Builder in Forest Hill
yes we doing loft conversion on very good price and great work we provide in short time
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Dragon union ltd
No reviews yet
Extension Builder in Forest Hill
Dragon union limited provides expert home improvement services, specializing in kitchens, bathrooms and full house renovation. We deliver hight quality, professional workmanship, turning your ideas into functional and beautiful spaces
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A.K construction
No reviews yet
Extension Builder in Forest Hill
Hi i am skilled builder I doo all jobs Extension Loft Electric Plumbing Fencing Carpentry
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Unico Develop ltd
No reviews yet
Extension Builder in Forest Hill
At Unico Develop LTD, we offer quality services from small projects up to new builds for all clients at reasonable prices. Our courteous Construction Company staff have the professional tools and experience necessary to help with all your needs. With over 25 Years experience!
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Dipesh
No reviews yet
Extension Builder in Forest Hill
Hello! My name is Dipesh, and I have over 11 years of experience as an electrician and security system fitter. Throughout my career, I have developed a strong expertise in ensuring the safety and efficiency of electrical systems and security installations. In addition to my work in electrical and security systems, I also offer top-notch handyman services and possess excellent skills in building outbuildings. Whether you need assistance with repairs, installations, or custom construction projects, I am here to help. I take pride in delivering high-quality workmanship and exceptional customer service, ensuring that every project is completed to your satisfaction. I look forward to working with you and providing the solutions you need for your home or business!
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FM CONSTRUCTION
No reviews yet
Extension Builder in Forest Hill
Hi
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Rajput construction
No reviews yet
Extension Builder in Forest Hill
We are experienced and reliable builders specialising in house extensions, structural alterations and refurbishments. We carry out all work to a high standard and in line with Building Regulations. We pride ourselves on being punctual, tidy and professional, with clear communication from start to finish. Fully insured and committed to delivering quality workmanship on every project.
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HK GREWAL CONSTRUCTIONS LTD
New on MyBuilder
Extension Builder in Forest Hill
About Us With many years of experience in the construction industry, HK Grewal Construction Ltd has built a strong reputation for reliable service and high-quality workmanship. We have successfully completed a wide range of projects, from smaller renovation and repair jobs to full property refurbishments, extensions, loft conversions and structural alterations. Where We Work We cover South London, Surrey and surrounding areas, and are happy to travel for the right project. Please get in touch to discuss your location and requirements. Our Expertise Our specialist services include extensions, loft conversions, structural alterations and steelwork, brickwork, plastering, roofing, bathrooms, kitchens, flooring, painting and decorating, and complete property refurbishments. We can manage individual trades or provide a complete project service from start to finish. Why Choose Us? We believe in doing the job properly, paying attention to detail and keeping our customers informed throughout the project. We take pride in our workmanship and aim to provide a professional, honest and reliable service on every job. Whether you are planning a small renovation or a complete home transformation, we work closely with you to understand your visio
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3.8

Top rated Extension Builders

Our Extension Builders in Forest Hill, are rated 3.8 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.