Extension Builders in Knightsbridge

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

Easily find verified Knightsbridge Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Knightsbridge.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Knightsbridge

3553 Results

Sort by:

R baciu
No reviews yet
Extension Builder in Knightsbridge
Designer and artist who conceives, design and creates luxury dwellings and runway clothing. in addition to dwellings Ramadan has designed restaurants, lounges and Luxury Clothing. If you have any questions, get in touch Flooring Tiling Plumbing Electrical Kitchen fitting Wardrobes fitting TV mounting Locks changing Shower fiting Taps changing And more
Get in touch
JED BUILDERS LTD
Rating: 5 out of 5
Extension Builder in Knightsbridge
A limited company established in 2016. More that 8 years experience in construction business. We undertake all building works, big or small, managing and looking after project so the client can have the best results possible.
Get in touch
Latest review:
Kitchen Fitting- 14 Dec 2018
Very lovely and professional and clean. Very prompt/punctual and worked efficiently , will be using them again to do more work in my property. Definitely with recommend them to anyone ! 10/10 from me ! Good service delivery
ScutariConstruction
Rating: 5 out of 5
Extension Builder in Knightsbridge
Scutari Construction is a limited company based in London. We are a very reliable and professional team of tradesmen with over 10 years of experience on the building industry, committed to deliver the highest levels of quality and service to our clients.
Get in touch
Latest review:
Extensions- 14 Apr 2021
Mel and team completely transformed our house in a very timely and professional manner. I honestly cannot say enough good things about him. The team works really hard and their model provides the fastest, highest quality construction at a reasonable price. Use these guys!
Otters Group Ltd
Rating: 5 out of 5
Extension Builder in Knightsbridge
Welcome to Otters Group Ltd page, With over 20 years of experience in the construction industry, we deliver high-quality construction solutions for both residential and commercial projects. From start to finish, we manage every aspect of construction with professionalism, precision, and care. Our team of skilled, reliable, and dedicated professionals is committed to exceeding expectations by delivering projects on time, within budget, and to the highest standards of quality. Customer satisfaction is at the heart of everything we do. We work closely with our clients throughout the construction process, upon completion, and during the defect liability period to ensure long-lasting results and peace of mind. **Your time, cost, and quality are our priority on every project.**
Get in touch
Latest review:
Painting & Decorating- 19 Jun 2024
I recently had the pleasure of working with Mahdi and his team, and they were excellent. They were knowledgeable, did the work efficiently, and cleaned up thoroughly afterward. I was extremely satisfied with the quality of their work. I would highly recommend them and look forward to working with them again in the future.
Home improvement
Rating: 5 out of 5
Extension Builder in Knightsbridge
“Reliable handyman with 7+ years of experience in flooring, plastering, and general home repairs. I take pride in clean work, clear communication, and finishing jobs on time. Available for small to medium projects — no job too small!
Get in touch
Latest review:
Handyman- 5 Jun 2026
Shere was amazing. He was very quick and professional, and did a very good job. Was very happy with the result. Would definitely hire again
Erik Novak
Rating: 5 out of 5
Extension Builder in Knightsbridge
I’m mostly working on my own. Always discussing any work or changes with customers before going ahead with it.
Get in touch
Latest review:
Handyman- 24 Apr 2026
Helped us move a large shed. Turned up on time, made himself available, and handled a tricky move with care. Easy to work with and good communication throughout.
Vullcan Construction
Rating: 1 out of 5
Extension Builder in Knightsbridge
We are a CHAS and Safe Contractor accredited organisation specialising in the provision of bespoke and high end specifications in relation to all aspects of internal refurbishments for both contemporary and period properties, in addition to commercial fit-out works, as well as small to large scale structural alternations. Our clients choose us for our experience and strong level of communication during our projects, our highly competitive rates and the high level of quality of our finish.
Get in touch
Latest review:
Extensions- 25 Aug 2020
I did my due diligence on Vullcan, but things went downhill. After a week i got a pre-tax invoice for £3000 for a more "complex" drainage system which was already completed, this was the start of them trying to get around contract items and look for every way possible to charge extra fees which i can’t go through in the word limit here. When that dint work they refused to do the work. e.g. they literally installed a tempered glass sheet, with liquid glue on my roof and stated to me that this was a "roof window". I had to show them buildings regulations that this was unacceptable and illegal especially when our contract said it has to be a VELUX ROOF WINDOW! Promised a 6-8 week completion, this is 9 months later. I had now paid about 90% of the original bill and 100% of additional costs. The final payment was due after completion and a 2 week snagging period. But the demand for payments started, with threats to sue. This was laughable as they hadn't completed the job. •The roof was leaking •Electrical issues with the fuse box and multiple light /electrical points •Outstanding items •The buildings controls company stated they would not be able to sign off on the building work because of outstanding issues, which I wouldn’t have even known as they lied stating they HAD the certificate. I agreed to send a FULL payment to an escrow company and pay HALF of the costs so they can complete and fix safety issues but they refused! Shameful experience.
Pro Construction London Ltd
No reviews yet
Extension Builder in Knightsbridge
Pro Construction London is a trusted London-based building company with over two decades of experience delivering high-quality renovations, refurbishments, and property maintenance. We pride ourselves on our professionalism, reliability, and attention to detail, ensuring every project is completed to the highest standard. From full property renovations and loft conversions to bespoke finishes and one-off repairs, we provide a seamless service from start to finish — clear communication, transparent pricing, and a tidy worksite every time. Our reputation is built on satisfied clients who return to us for future projects, knowing they can rely on a skilled and dedicated team to bring their ideas to life.
Get in touch
Alex
Rating: 5 out of 5
Extension Builder in Knightsbridge
Hi I offer good quality work which includes general construction works, painting interior, exterior, walls and ceiling repair and wood work I also offer handy man jobs, decking installation and repair,groundwork jobs.
Get in touch
Latest review:
Carpentry- 4 Jun 2026
I recently had Alex install my 12-foot pegola, and I couldn't be happier with the result. From start to finish, Alex was patient, listened carefully to what I wanted, and took the time to ensure everything was done properly. He is hardworking, reliable, respectful, and kept the work area tidy throughout the project. What impressed me most was how efficiently he worked without compromising on quality. The pegola was completed to a very satisfactory standard, and the finished result looks fantastic. I would have no hesitation in recommending Alex to anyone looking for a skilled and trustworthy tradesperson. I would gladly use his services again for future projects.
Edmond Buci
No reviews yet
Extension Builder in Knightsbridge
Hi, I’m Edmond, a reliable carpenter and builder with over 11 years of experience. I specialise in joinery, roofing, loft conversions, wood flooring, and door fitting. I’m known for clean, high-quality work, good communication, and finishing jobs on time. Whether it’s a small repair or a full home improvement project, I take pride in every job and always aim to deliver great results.
Get in touch
THE WEST 1 SERVICE GROUP LTD
No reviews yet
Extension Builder in Knightsbridge
West-1 Service Group is a London-based contractor providing reliable building maintenance, refurbishment and property repair services. We support homeowners, landlords, property managers and commercial clients with a range of works including building fabric repairs, refurbishment projects, fire door compliance, waste clearance and general property maintenance. Our focus is simple – clear communication, reliable service and work carried out to a high standard. We take pride in delivering practical solutions and maintaining safe, well-kept properties. Whether it’s a small repair, planned maintenance or a larger refurbishment project, we approach every job with professionalism and attention to detail. We are always happy to discuss new projects and provide straightforward advice where needed.
Get in touch
BOILER ACADEMY LTD
Rating: 5 out of 5
Extension Builder in Knightsbridge
team of Gas engineers and plumbers with years of experience we capable of doing all type of plumbing an heating work from replacing simple tap to whole hose New pipework
Get in touch
Latest review:
Plumbing- 8 May 2019
Very quick and good job.
Wayne
No reviews yet
Extension Builder in Knightsbridge
I have been a bricklayer for 10years. I can do Extensions, pointing and more
Get in touch
LLOCKBUILDING
Rating: 4.9 out of 5
Extension Builder in Knightsbridge
"PUTTING THE TRUST AND RELIABILITY BACK INTO BUILDING" At Lock Building London, we specialise in helping you grow your vision by creating the dream home you've always imagined. We understand that your home is a reflection of your aspirations and lifestyle. Our team of skilled craftsmen will turn your ideas into reality, expanding your vision one brick at a time. From innovative designs to quality craftsmanship, we ensure that your home improvement project aligns perfectly with your vision and lifestyle. With our expertise, your dream home will not only meet but exceed your expectations, allowing your vision to flourish and your dreams to come to life
Get in touch
Latest review:
Conversions - General- 15 Apr 2026
Luke and Diti are both amazing guys for this project. Honestly speaking they aren't the cheapest quote, but they are definitely beyond expectations. Luke was the only builder who gave a full transparent quote on each item and what was needed for the conversion. Really quick work and good planning because I have 2 cats and they did everything with enough people onsite to minimise the time. Speaking of work, it is good, we kept in communication and they were always happy to explain and adjust slightly according to my concern/question. Leave this comment after the work has been done for few months and everything is solid.
Elite Contracting Group LTD
No reviews yet
Extension Builder in Knightsbridge
Transforming Spaces with Exceptional Decoration Works. With over 35 years of experience, Elite Contracting Group ensures the delivery of premium-quality finishes, with relentless attention to detail and reliable adherence to timelines. From designing possibilities to building realities, we work towards elevating interiors and exteriors and transforming your project into an exceptional work of art. Ultimately, we are devoted to the realization of your vision, as our mission is your satisfaction.
Get in touch
ProNoRth General Builders
Rating: 5 out of 5
Extension Builder in Knightsbridge
Hello, I am a skilled builder based in North London. With a dedicated team, I offer comprehensive construction services. From small renovations to large projects, I deliver high-quality workmanship and ensure client satisfaction. Contact us to bring your building dreams to life. pronorthgeneralbuilders
Get in touch
Latest review:
Norbi is an exceptionally talented carpenter. He was the team lead on our major building project when we restored our Victorian house over an 18 month period. All his work was superior, from replacing ceilings and ceiling roses, to laying the new herringbone floor with electric underfloor heating. He was always polite, well mannered, and respectful. Norbi takes pride in his work and genuinely cares about the finished result in your home, a rare quality amongst many. We cannot recommend him highly enough.

4.2

Top rated Extension Builders

Our Extension Builders in Knightsbridge, are rated 4.2 out of 5 based on 19 reviews from customers like you.

Quality screening

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 Knightsbridge?

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 Knightsbridge 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 Knightsbridge who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Knightsbridge?

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

Find extension builders in Knightsbridge with MyBuilder

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

Step 2: Compare different extension builders in Knightsbridge

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

Step 3: Hire Knightsbridge extension builders with confidence

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

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

What to ask a Knightsbridge extension builder before hiring?

Before hiring an extension builder in Knightsbridge or extension building company in Knightsbridge, 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 Knightsbridge?

An extension builder in Knightsbridge 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 Knightsbridge 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 Knightsbridge?

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 Knightsbridge 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 Knightsbridge 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 Knightsbridge

Can an extension builder in Knightsbridge help with planning permission?

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

Many Knightsbridge 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 Knightsbridge help with materials and finishes?

Yes, most extension builders in Knightsbridge 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.