Extension builders in Bloomsbury

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (19 reviews)

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

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 Bloomsbury

3769 Results

Sort by:

RABII
No reviews yet
Extension Builder in Bloomsbury
carpentry/plumbing/painting/masonry work
Get in touch
Builders World Supplies Ltd
No reviews yet
Extension Builder in Bloomsbury
The company specializes in total home or flat renovations and house extensions. The team has actively participated in both large and small scale construction projects in London over the last 15 years. The quality of the work is outstanding and we can fit any budget. Our experience and our extensive contacts in the industry enable us to offer solutions suitable for the customer's needs. The founder and Director of the company is a qualified Civil Engineer.
Get in touch
Eliana Solution Ltd
New on MyBuilder
Extension Builder in Bloomsbury
13+ years of loft conversion experience. Quality workmanship,honest service and attention to detail.From start to finish,I deliver loft conversion built to last.
Get in touch
Karan construction
Rating: 5 out of 5
Extension Builder in Bloomsbury
All construction work undertaken contact for any interior or exterior work
Get in touch
Latest review:
Hard Flooring- 21 Aug 2025
Karan is absolutely brilliant,so polite,he laid my new laminated floor and done an amazing job I would highly recommend
worksite solutions ltd
Rating: 3.5 out of 5
Extension Builder in Bloomsbury
HELLO MY NAME IS IULIAN NICULCEA AND I HAVE BEEN WORKING SINCE 2013 IN THE UK AS A CARPENTER / SITE MANAGER ...I HAVE THIS SMALL COMPANY AND I WOULD LIKE TO BE ABLE TO HELP YOU WITH DIFFERENT SERVICES....
Get in touch
Latest review:
Groundwork & Foundations- 26 Jun 2026
Good
HM construction
No reviews yet
Extension Builder in Bloomsbury
H.Muzaci Contractor is a well-established building company with over 25 years of experience in the construction and renovation industry. We specialise in home renovations, extensions, refurbishments, and general building work, delivering high-quality results from start to finish. We pride ourselves on excellent workmanship, reliability, and attention to detail, no matter the size of the job. From initial planning through to completion, we work closely with our clients to ensure projects are delivered on time, within budget, and to a high standard. Customer satisfaction is at the heart of everything we do. We are tidy, respectful, and committed to clear communication throughout the project. Much of our work comes from repeat customers and recommendations, which reflects the quality and trust we’ve built over the years. Clients from all over City of London with references (Mayfair, Chelsea, Portsman Square). If you’re looking for an experienced, honest, and professional builder, H&M Construction would be happy to help.
Get in touch
96 Degrees Carpentry Ltd
Rating: 5 out of 5
Extension Builder in Bloomsbury
We undertake all aspects of Carpentry and General building works. Specialising in refurbishments and loft conversions we have a team of qualified and experienced carpenters, plumbers and electricians available for both residential and commercial works.
Get in touch
Latest review:
Decking- 23 May 2021
Excellent and professional job completed as quoted. Would highly recommend to future Clients.
Rayan and Kevin brickwork
Rating: 4 out of 5
Extension Builder in Bloomsbury
We do extensions , lofts conversions , roofing . gardening, rendering.and much more we have more than 20 years experience .
Get in touch
Latest review:
Bricklaying- 25 Aug 2024
AVOID. Ernie incorrectly installed my drains under my house which has caused awful smells and sewage to leak under my house causing long term damage to my foundations Three professional drainage company’s have put a camera to see a Dropped pipe from new to old house. They have identified a connection that was never appropriate. Unfortunately, Ernie after being given many opportunities does not accept any responsibility. He is not an expert at all trades so be careful. I’ve asked him to help put right by exposing the floor which has Underfloor Heating. This has now cost me tens of £000s. My fault for not using a professional team at the beginning of my project.
Renaldo Dungu
No reviews yet
Extension Builder in Bloomsbury
Hi , my name is Renaldo I’m a professional painter and decorator more than 3 years in industry I undertake big and small projects interior and exterior painting work, for more information please get in touch for a free quote .
Get in touch
FBF Construction Ltd
Rating: 5 out of 5
Extension Builder in Bloomsbury
We take all types of jobs from demolish a house and rebuild at the highest standards.
Get in touch
Latest review:
Florin extended and completely refurbished our 4-bedroom semi-detached house. This included extensive steelwork, underfloor heating, complete re-plumbing and rewiring, excavation, and an entirely new slate roof as well as varying extensions up to three floors high. I cannot say enough good things about his workmanship, professionalism and reliability. His workmanship makes a perfectionist like myself happy. He is also completely professional: even with our difficult neighbours he was always courteous and understanding, and even helped them sort out issues at a moment’s notice that had nothing to do with his building work on our property. And he is also thoroughly reliable. I cannot think of any instance where he committed to something and did not deliver — he even managed to finish all the work on our house ahead of schedule and on budget. We have been so happy with his work that we contracted him to build us a summer house as well, from scratch, and to complete revamping our front garden including elements of hard landscaping. Again he delivered flawlessly and we are very happy with the result. We also continually receive positive comments from people passing by and just seeing the front garden. We have used several other builders in the past on other properties, including far more expensive ones, and none compare to his level of competence, attention to detail in his workmanship, his complete professionalism and thorough reliability. Now that we have found Florin, we will never look for another builder again. I just hope once others experience what he delivers for themselves he will still have some availability for us in the future!
House doctor
Rating: 5 out of 5
Extension Builder in Bloomsbury
Here ,at London house doctor,we are qualified kitchen and bathroom fitters,general builders,extension and loft conversion specialist,electricians,plumbers,painter&decorators. very affordable and reliable,fully experienced based in London. liability insured with great references. we operate in a professional manner and provide you with first-class service and finish at the best price in the market Our services include: 1.Building Extensions,loft conversion 2.kitchen/Bathroom renovation 3.shop fitting 4. Refurbishment & Maintenance Residential & Commercial Properties A:Electrical Services Fault finding Install consumer unit Full wiring & rewiring house Sockets and switches Lighting and chandeliers Cooker & oven hood replacement CCTV and alarm system Electrical shower and many more… B:Plumbing; All types of water and waste pumps and boilers. Manhole first and second, fix plumbing. Fix and install all types of boiler and water heaters All types of radiators and Under floor heating systems Finding all types of leaks and blockage C:Tiling Services: Any format of tiles includes ceramic, mosaic, porcelains, limestone, marble, and grinate Bathrooms and kitchens Shower and wet rooms Conservatories Saunas and Jacuzzis D:Painting & Decorating Filler and fix all kinds of walls Repair the rough paint Paint internal and external doors and windows Painting any bedroom size Waxing and all woodwork paint E:Carpentry & Joinery Kitchen cupboards & work top Fix, install, and make new doors, windows & shelves
Get in touch
Latest review:
Zhoobin and his team carried out painting, decorating works,and general handyman works. They were a great team, who came in and worked quickly and efficiently.
Builder
Rating: 4.7 out of 5
Extension Builder in Bloomsbury
Hi we are specialize in all type of plastering and decorating thanks
Get in touch
Latest review:
Painting & Decorating- 10 Aug 2026
not happy at all
TMPROBUILDING 1
Rating: 3 out of 5
Extension Builder in Bloomsbury
With over 15 years of hands-on experience in the construction industry and 6 successful years running my own building firm, I specialize in high-quality home extensions, renovations, and structural works. Based in east London, I travel across London and the surrounding areas to deliver top-tier projects. My core focus is on precision craftsmanship, reliability, and clear communication. Clients hire me because I handle every project with full transparency, adhere strictly to building safety standards, and treat every property with the highest level of care and respect
Get in touch
Latest review:
Kitchen Fitting- 30 Oct 2026
It didn’t give me an option to give no stars. From the 13/10/26 we agreed a price and a date. On the morning of the agreed date he calls to cancel and tell me he can’t do the job. Maybe too small of a job I don’t know but it has extremely inconvenienced me and reduced me to tears. 2 weeks have gone by only for him to cancel…I WOULD NOT TRUST THIS BUILDER I’m extremely disappointed, he seemed like a pleasant professional man yet I got the complete opposite service. I’m not sure if my race or gender has anything to do with it but that’s how the situation has left me feeling.
Star 5 construction ltd
Rating: 5 out of 5
Extension Builder in Bloomsbury
Hi everyone,Star 5 construction Ltd provides best quality of work with affordable price and finish your project with in giving time. For coustmer satisfaction we will provide you our liability insurance details. Our services: New build Extension. New loft conversation and new Roofing. Supply and fit new double glazed windows and doors, with K silicone rendering or Standard plastering. All types interior and exterior design and build. All types supplied and install steel beams. Free quotes and estimate. Many more offers if you need any information feel free to send us email with your plan, happy to provide you all the information.
Get in touch
Latest review:
Mr singh and his team have done an excellent job,couldn’t have been more happier.Mr Singh’s experience and advice has saved me some serious money.really happy with the final product. It was big and complex task but it was completed in very efficient and professional manner.without any hesitation I’ll be recommending their services to friends and family
McBurnie Construction Ltd
Rating: 5 out of 5
Extension Builder in Bloomsbury
At McBurnie Construction, we specialise in high-quality brickwork, lime work, restorations, and groundwork across London and Bedfordshire. With over 20 years of industry experience and more than 1,000 successfully completed projects, we bring a wealth of knowledge and craftsmanship to every job. Our team is dedicated to delivering exceptional workmanship, whether working on modern developments or sensitive heritage restorations. We take pride in our attention to detail and our understanding of both traditional and contemporary building techniques. From initial estimating and detailed quotations to material advice and final delivery, we ensure a smooth and professional service throughout. Our expertise includes heritage brickwork, specialist pointing, and the use of lime mortars, ensuring that older properties retain their character and integrity while meeting modern standards. We work with a wide range of clients, including homeowners, estate agents, and property developers, and have built a strong reputation based on reliability, clear communication, and fair pricing. Our services include: Brickwork & Blockwork Restorations & Heritage Work Lime Work & Specialist Pointing New Builds Renovations Extensions Basement Reconstructions Groundworks No matter the size or complexity of the project, we are committed to delivering results that meet and exceed expectations.
Get in touch
Latest review:
Bricklaying- 17 Mar 2024
Not sure if we could have been happier. McBurnie Construction LTD have been efficient, absolutely professional and literally went above and beyond what was expected,. We will definitely be using their services in the future. Awesome job Leron & Georgia! RJ & PG
5 Star Renovations
Rating: 5 out of 5
Extension Builder in Bloomsbury
Hello, We are a home renovation company specialising in Kitchens, Bathrooms and all other internal works. High quality work whilst working at a good pace to ensure completion. We look forward to working with you.
Get in touch
Latest review:
Plastering- 25 Jul 2024
Lewis and his team were very professional. They treated my house with respect. They delivered the job on time and to an excellent standard. Competitive price and very efficient service, will definitely use him again.

4.6

Top rated Extension Builders

Our Extension Builders in Bloomsbury, are rated 4.6 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 Bloomsbury?

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

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

What are the hourly rates of extension builders in Bloomsbury?

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

Find extension builders in Bloomsbury with MyBuilder

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

Step 2: Compare different extension builders in Bloomsbury

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

Step 3: Hire Bloomsbury extension builders with confidence

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

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

What to ask a Bloomsbury extension builder before hiring?

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

An extension builder in Bloomsbury 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 Bloomsbury 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 Bloomsbury?

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 Bloomsbury 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 Bloomsbury 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 Bloomsbury

Can an extension builder in Bloomsbury help with planning permission?

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

Many Bloomsbury 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 Bloomsbury help with materials and finishes?

Yes, most extension builders in Bloomsbury 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.