Extension Builders in Knightsbridge

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

3631 Results

Sort by:

Deal Installations and Maintenance Ltd
Rating: 4.9 out of 5
Extension Builder in Knightsbridge
We might deliver building services but we are actually into people business. Our company mission is to provide top quality building services to satisfy our customers needs. We are making ourselves available so everyone can take advantage of our top rated skills and customer satisfaction . You deserve the best and we are here to help. Safety first, then customer first. Experience will take care of the rest.
Get in touch
Latest review:
Restoration & Refurbishment- 14 Jun 2020
Vasile Pavel and his team were brilliant so helpful efficient with great advice of what would look good for a best price. He did a house clearance for me a new bathroom and new kitchen as well S decorating and some electrical work. I highly recommend him.
TEMFOR DESIGN AND CONSULTANCY LTD
No reviews yet
Extension Builder in Knightsbridge
We offer all relevant services under one roof for your extension, loft conversion and refurbishment projects. We work across the London area and offer competitive, affordable prices. We provide free design advice, full planning drawings, submitting the plans, and preparing any changes requested by the council. We also specialize in Extensions, Loft Conversions, Structural Alterations, and Full Refurbishments. Fully insured and all our work is guaranteed .
Get in touch
Khbuilder ltd
Rating: 5 out of 5
Extension Builder in Knightsbridge
Hi I’m Khbuilder ltd I have 16 years on business building Trade extension and lots of building work I have a website which you can see lots of more information thanks
Get in touch
Latest review:
Extensions- 6 Jun 2021
I requested quotes from 10+ builders, regardless of their price I already knew I was going with KHbuilder as instantly they seemed genuine & trustworthy! Hasan never changed his price during the project which is a fear many have during a build, he has a great team, friendly and always courteous. His workmanship is very good, therefore he is now also doing my patio and garage, he has great suggestions and contacts which has saved us money. His attention to detail and reliability really does shine through, our neighbor is now also doing the exact same 4 meter extension with a new kitchen move, the fibre glass roof and the bifolds all starting to take shape and look fantastic, just search for KHBuilder on instagram where they have posted the progress so far of all the work being done! We will genuinely miss all the guys being around. A very rare find in the building trade!! Thanks KH Builder...
Era Construction Solutions Ltd
No reviews yet
Extension Builder in Knightsbridge
🏗️ Welcome to ERA Construction Solutions – a trusted family business with years of experience delivering high-quality building services across London. ✨ We specialise in: • 🏠 House Extensions & Loft Conversions • 🛁 Bathroom Renovations • 🏡 Full Home Renovations • 🧱 Plastering, Tiling & More 🔑 Why choose us? • ✅ Fully Certified & Fully Insured – your home is in safe hands • ✅ All Work Guaranteed – we stand by the quality we deliver • ✅ Reliable & Professional Team – from planning to completion • ✅ 65+ ⭐ Google Reviews – proof of happy customers and excellent service At ERA Construction Solutions, we combine craftsmanship, reliability and clear communication. Whether it’s a small project or a complete house transformation, we approach every job with the same dedication to quality. 📞 Get in touch today – let’s bring your vision to life with trust, quality and care.
Get in touch
Seraj
New on MyBuilder
Extension Builder in Knightsbridge
Reliable and experienced contractor offering high-quality tiling, painting, plastering, and interior decoration services. I specialise in indoor and outdoor tiling, including garden paving, full bathroom renovations, and kitchen splashbacks. We also provide professional wall partitioning, plastering, and custom decorative finishes. Dedicated to precision, clean workmanship, and timely completion. Contact us for a reliable, professional, and friendly service
Get in touch
Virtu Maison Ltd
No reviews yet
Extension Builder in Knightsbridge
Virtu Management is a newly established main contractor specialising in high-end residential construction. Led by a director with five years of project management experience in the luxury housing sector, the company delivers high-quality refurbishments, bespoke fit-outs, and full renovations. Combining strong technical knowledge with a detail-driven approach, Virtu Management provides reliable project delivery, clear communication, and seamless coordination with clients, designers, and specialist trades. Focused on quality and professionalism, the company is committed to creating exceptional homes finished to the highest standards.
Get in touch
Da Hora Construction LTD
No reviews yet
Extension Builder in Knightsbridge
London-based specialists in residential renovations and extensions, delivering tailored, well-executed construction with attention to detail.
Get in touch
Lux Contracts Ltd
Rating: 4.9 out of 5
Extension Builder in Knightsbridge
LUX contracts are a friendly,family run building contractor. We carry out all types of construction projects; refurbishments, kitchen and bathroom installations, conversions, extensions and electrical projects.Our team of tradesmen have many years of experience. We have completed numerous projects working closely with clients to ensure we understand and deliver a very high standard, meeting the clients requirements and expectations .
Get in touch
Latest review:
Extensions- 22 Apr 2019
Richard and his team have always been very hard working, respectful and professional throughout the project. We have had an extension, utility and bathroom/toilet renovation and we are very happy with the quality of work. It has transformed our home into a beautiful living space. Richard was very helpful when giving advice on materials we were choosing. The team were very accommodating to our needs, easy to work with and always tidied up after themselves. The payment schedule made it easy to keep on top of the budget and pay for any optional extras along the way. The building work was completed within the set timescale and to a high standard. We would highly recommend Lux for any building/renovation work.
HSAO LTD
No reviews yet
Extension Builder in Knightsbridge
We build residential homes and commercial shops—with a personal touch! HSAO Limited was established with a vision to innovate and transform the real estate and property development landscape. Rooted in a commitment to excellence, our company prides itself on delivering bespoke solutions that cater to the unique aspirations of our clients. With sustainability, quality, and integrity as our guiding principles, we focus on creating spaces that not only inspire but also stand the test of time. At HSAO Limited, we view each project as an opportunity to make a positive impact—building not just properties, but trust and enduring relationships. Together, we shape a future where potential meets possibility.
Get in touch
GL Design and build Ltd
No reviews yet
Extension Builder in Knightsbridge
Refurbishments, Extensions, loft conversions all building works
Get in touch
S.G carpentry
Rating: 5 out of 5
Extension Builder in Knightsbridge
SG carpentry & construction is a quality building company working in the south London and surrey area. We specialise in property refurbishment , kitchens , bespoke cabinetry and wardrobes , extensions , loft extensions , garden offices ,flooring and doors. We take pride in our professionalism , punctuality and attention to detail and use a wide variety of materials to suit all budgets. We aim for 100% customer satisfaction every time and provide you with the workmanship that you deserve.
Get in touch
Latest review:
Extensions- 31 Oct 2019
Sam built a 9 meter by 4 meter ground floor extension for us, it has 2 rooms, 2 large sky lights, french doors and a patio. The build came in on time and on budget, Sam and his guys where always friendly and courteous, would explain what was going on and made sure we where happy with everything. We have autistic boys, one of them likes to know whats happening at all times and wanted to help and ask question non stop, the guys where absolutely brilliant with them, even letting them lay some bricks. I could not have asked for better workman when it came to my boys! We are very happy with our extension, it has made a massive difference to our home and lives. We have no problem at all in highly recommending Sam to anyone!! Shel & Jim Aitken
RAQS Investment Limited
No reviews yet
Extension Builder in Knightsbridge
We carry out all types of building works for both residential and commercial properties, including loft conversations, extension, refurbishment, general maintenance, painting & decorating, carpentry, plumbing & central heating, electrical works, tiling. Our team comprises of professional builders, who have been carrying out the work in & around Greater London for the past two decades. We also have a branch office in East London and we cover East London as well.
Get in touch
F builder
No reviews yet
Extension Builder in Knightsbridge
No job is small..I m here to help with my best ability
Get in touch
Oggitech
No reviews yet
Extension Builder in Knightsbridge
OggiTech is your trusted partner for premium full house refurbishments and complete flat renovations across London. We specialise in delivering high-end, turnkey transformations for homeowners who demand flawless craftsmanship and exceptional attention to detail. Our expertise covers bespoke kitchen fitting, luxury bathroom installations, custom loft conversions, and certified electrical services. From structural changes to the final coat of paint, our dedicated team manages every aspect of your project with professionalism and care. Whether you are modernising a period property or upgrading a contemporary space, we bring your vision to life. Contact OggiTech today to book your free site survey!
Get in touch
Antonio travaglia junior
No reviews yet
Extension Builder in Knightsbridge
The main point is to provide a high quality service and see the customer happy, we work tirelessly for the best service and quality! We always work with the best products available and the best price in town! So if you are looking for a good job at a fair price, contact us!
Get in touch
AP solutions
New on MyBuilder
Extension Builder in Knightsbridge
AP Solutions is a reliable and professional property services company providing high-quality building, roofing, maintenance, cleaning, and repair solutions for residential and commercial customers. From roofing and general building work to exterior cleaning, landscaping, property maintenance, and renovations, we take pride in delivering exceptional workmanship, honest pricing, and dependable service. No job is too big or too small—our experienced team is committed to completing every project safely, efficiently, and to the highest standards, with customer satisfaction at the heart of everything we do.
Get in touch

4.2

Top rated Extension Builders

Our Extension Builders in Knightsbridge, are rated 4.2 out of 5 based on 20 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.