Extension Builders in Knightsbridge

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

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Some of our top rated extension builders in Knightsbridge

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Danny builer
No reviews yet
Extension Builder in Knightsbridge
I’m available for work on new projects
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H & A Rail ltd
Rating: 5 out of 5
Extension Builder in Knightsbridge
We are a Civil Engineering Contractor
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Latest review:
Groundwork & Foundations- 22 Dec 2021
I couldn't have asked for more from this firm.... called when they said they would, arrived early and did everything they could to take away the stress of this stavr in my build. Clean and tidy works, pleasant and polite workforce. I will always use this firm for my work and highly recommend them
AnA Brickwork
No reviews yet
Extension Builder in Knightsbridge
We are a family run business with over 16 years of experience. We’ve seen it all and done it all, from building sites to domestic work, patios, brickwork, extensions, fancy garden walls. Honest, well mannered and reliable set of brothers.
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Bergin Surveying Ltd
No reviews yet
Extension Builder in Knightsbridge
Over 30 years combined experience within the construction industry. Specialists in high end, contemporary and sustainable building. The management team consists of chartered Construction manager (MCIOB) Leading operations and a fully qualified Quantity Surveyor leading commercial. Looking for work including: - - New Build Projects - Extensions - Refurbishments - Loft Conversions - Basements - Maintenance contracts
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Lemak
No reviews yet
Extension Builder in Knightsbridge
Bricklaying & Pointing Services - Experienced & Reliable We offer all types of brick and block work for both domestic and commercial projects.
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L R Construction
No reviews yet
Extension Builder in Knightsbridge
L R Construction is a family run business with nearly 40 years experience in the building industry. We take pride in our work and keeping our sites clean and tidy. Forming a great relationship with our customers making your building work as stress free as possible. All building work undertaken
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J.D.OWEN BRICKWORK
No reviews yet
Extension Builder in Knightsbridge
Y
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Bren Building and Renovations
Rating: 5 out of 5
Extension Builder in Knightsbridge
Hi my name is Ben and I am new to my builder. I have been in the building trade for 13 years and I am a qualified level 2 carpenter. I also undertake many other aspects of the building trade such as kitchen and bathroom fitting, tiling, fencing, decking etc. I am a trusting, clean tidy worker and strive to give the best possible service as I can. All jobs are undertaken no matter how big or small.
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Latest review:
Fencing- 20 Apr 2020
Ben turned up when he said he would, was very obliging, took all broken fencing away. Will definitely use him again when necessary
Balls Builders Ltd
No reviews yet
Extension Builder in Knightsbridge
We are a family business from Bexleyheath with over 20years experience in the building trade.We regularly work for commercial companies as well as regularly undertaking domestic jobs. We can give in depth and valuable advice on all aspects of work from footing to ridge using our many years of experience. We are a multi trade company all of our employees are highly skilled in all aspects of work. Customer satisfaction is our top priority. We can provide customer references from previous jobs
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Qimi
No reviews yet
Extension Builder in Knightsbridge
My name is Bri decided to open my self up a construction company Qimi Building I have a passion for seeing homes come to life I have 2 very dedicated individuals who have a passion for building we offer all kinds of services please just ask me and I will give you the information any questions you would like to know regarding a job your wanting done and prices ect.
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Rabbit General Works
No reviews yet
Extension Builder in Knightsbridge
Here at RGW we pride our selves for you the customer. All jobs are undertaken to the highest of standards a standard that we as tradesmen would be happy to have in our own family homes. Not only do we offer the highest of standards but we also offer the most competitive of prices. From full refurbishments,bathrooms,kitchen full garden landscapes and driveways, here really is no job to big or small. Covering all of London and the southeast for the last 10 years we have built up a large portfolio of satisfied customers who never hesitate to get in contact for their las test of projects.
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GARDEN LANDSCAPING COMPANY
New on MyBuilder
Extension Builder in Knightsbridge
We provide professional landscaping and outdoor design services tailored to your home. Our offerings include custom landscape design, lawn installation, planting, irrigation, hardscaping, patios, walkways, fencing, and complete property maintenance. With a focus on quality craftsmanship and sustainable practices, we create outdoor spaces that are attractive, functional, and built to last. Our experienced team manages every project with precision, from initial concept to final installation, ensuring timely delivery and lasting results. We aim to enhance your property’s beauty, usability, and value with landscapes that reflect your style and meet your needs.
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SANDEEP SINGH
No reviews yet
Extension Builder in Knightsbridge
WE DO 10 YEARS EXPERIENCE OF EXTENSION, CONVERSIONS, PLASTER ALL KIND OF BUILDER WORKS
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PROBUILTZ LTD
No reviews yet
Extension Builder in Knightsbridge
PROBUILTZ LTD is a reliable and experienced construction and property maintenance company based in London. With a skilled team of professional tradesmen, we specialise in delivering high-quality workmanship across both domestic and commercial projects. Our services cover everything from small repairs to full renovations, including: • Painting and decorating • Full property refurbishment • Bathroom and kitchen renovations • Flooring installation and repairs • Demolition and strip-out works • Partition walls and plasterboard installation • Plastering and ceiling repairs • Roofing – new installations and repairs • Extensions and structural alterations • Groundworks and drainage • Water and fire damage restoration • General property maintenance We take pride in being reliable, honest, and detail-focused. Every project is carried out to a high standard, ensuring clients receive long-lasting results and a professional service from start to finish.
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Harrison cook
Rating: 5 out of 5
Extension Builder in Knightsbridge
Family run buisness All aspects of roofing Offering a 10 year garentee on all new roofs.
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Latest review:
Harrison completed the job to a high standard. He worked late to ensure the roof was left water tight overnight. The site was left clean and tidy.
MOVMIL LTD
Rating: 5 out of 5
Extension Builder in Knightsbridge
At **MOVMIL LTD**, we provide a comprehensive range of home improvement services, making us your one-stop shop for renovation and refurbishment. Whether you’re reconfiguring your home or updating its décor, our skilled team delivers high-quality results. We specialize in creating spaces that match your style and needs, from upgrading interiors to reconfiguring layouts, ensuring both functionality and aesthetic appeal. Our services also include professional painting and decorating, with high-quality materials for a perfect finish. We offer plastering to create smooth, even surfaces, and kitchen fitting to make your space both stylish and functional. Our carpenters also handle bespoke storage and elegant staircases. With over 7 years of experience since 2017, we’ve successfully completed projects from small refurbishments to large renovations for both residential and commercial clients. We manage all aspects of your project under one roof, minimizing delays and stress with one point of contact. We listen to your needs, offer expert advice, and provide tailored solutions to bring your vision to life.
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Latest review:
Conversions - General- 3 Sep 2025
Done a fantastic job, clear communication all the way through the job and reasonable quote. Did not mess about got in cracked on with the work, very knowledgeable. Will consider for future works

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.

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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.