Extension Builders in Knightsbridge

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Knightsbridge

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R Willis construction
No reviews yet
Extension Builder in Knightsbridge
I have been a builder for 30 years in that time I have undertaken many varied projects from small building works to big projects from extensions to new build houses and flats. I have also done many conversion projects. No job too small or large .
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OJS Building & Landscaping LTD
No reviews yet
Extension Builder in Knightsbridge
We are a small construction company, covering all aspects of building and landscaping. We have 35 years of experience in the industry.
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Source facilities Maintenance
Rating: 5 out of 5
Extension Builder in Knightsbridge
Refurbishments, Extensions, New builds, Period property, Home maintenance. Recent residential works include a new build project adjacent to a 16th century gatehouse in Epping Copped Hall, Extension and refurbishment of a house in London N5, Full refurbishment with extension in Waltham cross southfield road. We have worked for several large to medium sized companies on internal fit out contracts including a board room for waitrose and a value added facility for Wholefoods kensington.
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Latest review:
Source FM recently helped us fit out a new 8000 sq ft warehouse in Hackney. The project included installing new electricals, installing new fire and security alarms, repairing and repainting a heavily used concrete floor, redecorating, servicing the heating etc. The project had a very tight time frame and Source FM often had to work around members of our team as we started moving in while work was still ongoing. I'm pleased to say, all the work was completed in time and to a very high standard. We've since used Paul and Bill for a number of smaller projects, both at the warehouse and in our offices.
Coste + Beno
Rating: 5 out of 5
Extension Builder in Knightsbridge
Coste + Beno is an experienced construction business with a strong residential background. We pride ourselves on balancing architectural ingenuity with fine craftsmanship, to offer specialist services to discerning clients in the premium residential sphere. Our bespoke approach has seen us creating bijoux bathrooms in Shoreditch to managing full-scale renovations on listed residences in Primrose Hill. We are looking forward working with you. Best, Coste + Beno
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Latest review:
Architecture- 27 Nov 2017
I contacted Marius because he had good reviews and wanted someone reliable and capable so design a single story extension with large external and internal bifold doors. I wasn’t disappointed - Marius has been excellent throughout the whole design process and produced drawings to a high standard which met our requirements. Marius was an excellent communicator and always available to give advice when required. Further more, he went out of his way to contact local authorities regarding any questions I had at no extra cost to clarify any uncertainties. I would highly recommend his architectural services - he was good value and very professional.
Falcon construction London Ltd
No reviews yet
Extension Builder in Knightsbridge
Falcon Construction London Ltd is a trusted construction company based in London, delivering high-quality residential building services across Greater London and the surrounding areas. We specialise in home extensions, loft conversions, full property renovations, refurbishments, structural alterations, brickwork, roofing, plastering, carpentry, flooring, kitchens, bathrooms, and complete project management. Our experienced team is committed to providing exceptional workmanship, attention to detail, and outstanding customer service on every project, no matter the size. We work closely with homeowners from the initial consultation through to completion, ensuring every project is delivered safely, on time, and within budget. We pride ourselves on being reliable, honest, and transparent, keeping clients informed throughout every stage of the build. Using quality materials and proven construction methods, we create durable, functional, and attractive living spaces that add value to your property. Health and safety, compliance with Building Regulations, and customer satisfaction are at the heart of everything we do.
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Victor
No reviews yet
Extension Builder in Knightsbridge
We do lofts, extensions, rendering, skimming, tailing, + more. We are an experienced and professional team.
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Wg 1 ltd
No reviews yet
Extension Builder in Knightsbridge
Hi we are a experienced building company that takes all building work from garden walls to new house builds, refurbs and extensions. We also specialise in flood and fire damage insurance work We deal with the whole process from getting you the quotes to drying out the damaged property to fill repairs and dealing with the insurance and loss adjuster direct to save you the hassle.
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Tori construction Ltd
No reviews yet
Extension Builder in Knightsbridge
Plastering and rendering Al types
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AJ
No reviews yet
Extension Builder in Knightsbridge
handyman
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Urban Viking Construction Ltd
No reviews yet
Extension Builder in Knightsbridge
Hi, my name is Martin. I have more than 15 years of experience with kitchen fitting, carpentry and joinery also owning a construction company for 9 years specialised in Loft Conversions and Extensions. Would be pleasure to complete your project to the highest standards.
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Karnail singh
No reviews yet
Extension Builder in Knightsbridge
I am a self employed. I have worked in building works more than 7 years. I can design and build and can do almost every work. Plumbing, electrician, carpenter and I can do every handyman work.
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Matthew proctor
Rating: 4.8 out of 5
Extension Builder in Knightsbridge
Qualified bricklayer completing all aspects of building work and landscaping from small work to full extensions
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Latest review:
Bricklaying- 26 Mar 2026
Matthew completed the job that turned out to require more work than originally anticipated. I can certainly recommend Matthew as he was very obliging and willing to go the extra mile at no additional cost.
Cheema property maintenance
No reviews yet
Extension Builder in Knightsbridge
Cheema Property Maintenance LTD is a reliable property maintenance company specialising in home renovations, repairs, and ongoing maintenance for residential properties. We work closely with homeowners and landlords to keep homes safe, functional, and looking their best. From full and partial renovations to general home repairs and routine maintenance, our experienced team delivers high-quality workmanship with attention to detail on every job. We take pride in offering a dependable, friendly service with honest advice and practical solutions tailored to each property. We also provide free, no-obligation quotes, helping our customers plan their projects with confidence and no pressure. At Cheema Property Maintenance LTD, our focus is on quality work, fair pricing, and building long-term relationships through trust and reliable results.
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Eisa construction services LTD
No reviews yet
Extension Builder in Knightsbridge
Welcome to Eisa Construction Services! We are a trusted and experienced construction company committed to delivering exceptional quality, safety, and value in every project we undertake. With years of expertise, our team specialises in residential, commercial, and industrial construction, handling everything from new builds to complex renovations and custom designs. Our mission is to exceed client expectations with a combination of innovative solutions, top-tier craftsmanship, and unparalleled customer service. From the first consultation to project completion, we focus on clear communication, precise execution, and timely delivery, ensuring every step is handled with the utmost care and professionalism. We pride ourselves on being reliable, transparent, and passionate about what we do. Whether you're planning your dream home, upgrading your business space, or starting a large-scale project, we bring your vision to life with dedication and attention to detail. Let us make your construction experience smooth and successful. Reach out today to discuss how we can help with your next project!
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Happy
No reviews yet
Extension Builder in Knightsbridge
I have experance for building job nearly 20 year
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Prestige Home & Extensions ltd
No reviews yet
Extension Builder in Knightsbridge
Prestige Home & Extensions ltd specialises in high-quality home improvements, house extensions, loft conversions, bathroom installations, renovations and property upgrades. We pride ourselves on delivering reliable workmanship, attention to detail and excellent customer service from start to finish. Whether it’s a full home extension, loft conversion, new bathroom, kitchen renovation or general building work, we work closely with every client to create results that are built to last. Clean, professional and dependable, we are committed to completing every project to a high standard and on schedule.
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4.1

Top rated Extension Builders

Our Extension Builders in Knightsbridge, are rated 4.1 out of 5 based on 18 reviews from customers like you.

Quality screening

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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.