Extension Builders in Birmingham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (17 reviews)

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Some of our top rated extension builders in Birmingham

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Persia
Rating: 5 out of 5
Extension Builder in Birmingham
I do building renovation works with the lowest cost and the fastest time and completely standard.
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A & S Builder
Rating: 5 out of 5
Extension Builder in Birmingham
Reliable and experienced multi-trade builder specialising in wall and floor tiling, kitchen and bathroom fitting, doors, windows, paving, slabbing, handyman services, extensions, and general building work. Committed to quality workmanship, reliability, and customer satisfaction on every job. competitive prices. Free quotations available — send pictures or videos for a quick estimate. Best prices guaranteed.
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Latest review:
Tiling- 27 Jul 2026
Great job, friendly and kept us informed. Also arrived bang on time he said he would. Many thanks
Pak Builder Construction Ltd
Rating: 4 out of 5
Extension Builder in Birmingham
New building work, constructions,roof work ,renewal,garden work,driveway,plumbing ,plastering, we also pass finance for our customers,solar panels,boiler and repair boiler as well.We do all kind of work with free quotes. 12 experience
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Latest review:
Amazing work, they listened and did everything I wanted. They provided the materials which was best quality and produce excellent finishes. I am definitely Satisfied.
NatoM
Rating: 5 out of 5
Extension Builder in Birmingham
Hello, my name is Vaho, and I specialize in providing high-quality painting services and other tasks: tiling, bricklaying. With years of experience in the industry, I am committed to delivering excellent results, whether it’s for a residential or commercial project. I take pride in my attention to detail, ensuring that every job is completed to the highest standard. From painting rooms, halls, and stairways to other home improvement services, I aim to make your space look its best.
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Latest review:
Tiling- 23 Jun 2025
It’s always a pleasure to meet people that you feel you can trust. The job was finished to a high standard and exceeded expectation. A****
City builders & developers Ltd
Rating: 5 out of 5
Extension Builder in Birmingham
We specialise in establishing new builds, whether it may be renovation or extension work, we’ve got you covered. Our team has all the qualification and the expertise you require. We are a team of professionals who have 40 years experience in construction. We operate in Hertfordshire, Northamptonshire, Bedfordshire, Warwickshire, Oxfordshire and Leicestershire. Feel free to shortlist city builders for your work and we will not disappoint you.
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Latest review:
Definitely high recommend, he done two job for me one of my salon , and my house extension , they done it by time. He never made any excuse , they are committed with their work. I had few bad experience with my previous builders but really thankful to all of their team members. Thanks
BMM Builders LTD
Rating: 5 out of 5
Extension Builder in Birmingham
We are a family run business with over 15 years of Experience, we undertake any type of building work from small to large jobs, new builds, extensions, renovations, all our jobs are at the highest quality and we make sure that all our customers are satisfied with our work, we are also Trust Mark Government Endorsed Standards Registered. welcome to view our previous jobs
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Latest review:
Having previously used BMM builders for a number of smaller jobs we contracted them to do a full renovation on a large 4 bed Victorian property. The property had been totally gutted of all plaster, electrics,heating system and all woodwork. BMM builders did an excellent job of putting the property back and worked diligently 6 days a week to complete the job both on time and within budget. I would not hesitate to use them again.
K.C Construction
Rating: 5 out of 5
Extension Builder in Birmingham
At KC Construction we provide a friendly and professional service. Reliable tradesmen working alongside our clients to meet all their requirements, to the highest of standards.Taking on all aspects of brick and block work, including home extensions, garden walls, new builds, and re-pointing.
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Latest review:
Bricklaying- 28 Sep 2022
Craig is a good guy and did a nice job on my brickwork.
Ampersand EPM Ltd
Rating: 5 out of 5
Extension Builder in Birmingham
We specialise in heritage property repairs, refurbishments, and restorations across the Midlands. A prompt, polite and knowledgeable service from quotation to completion.
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Latest review:
Restoration & Refurbishment- 17 Nov 2014
I posted my refurbishment job on My Builder.com because my first choice builder was booked up, I am so pleased he was because I found Larry who has been a pleasure to work with. From the first conversation on the phone, he was honest, creative and knowledgable and I know saved me a significant sum of money, based on the advice and solutions he presented me with. His costings were transparent and negotiable and although the work was disruptive, Larry managed expectations of time scale honestly and accurately, so we could carry on with our lives as normally as possible. Larry is not your typical builder, he has an analytical mind and was always able to come up with logical solutions to the (few) problems we had. We collaborated and worked together, particularly when it came to the kitchen design and fit. He was totally focused on my job throughout and wasn't juggling other jobs at the same time. Although Larry did the majority of the work, he is an excellent electrician, plumber, builder and project manager, he brought in Lee, a master plasterer who stripped my hall, stairs and landing back to brick and re-plastered to a very high standard, he was also lovely to have around and took great care to make sure everything was as clean as possible before leaving for the day. I would have no hesitation whatsoever in recommending Larry (and Lee) to anyone looking for a builder with brains, solutions and a high standard of work.
GK CONTRACTS
Rating: 5 out of 5
Extension Builder in Birmingham
GK contracts are a sub contract bricklaying company with over 30 years experience working on both commercial and domestic projects. We have worked for some of the midlands biggest companies down the years on all kinds of projects from offices, hospitals to new build apartments. Projects include brindley place, the mailbox, Warwick and Stratford hospital and St Nicholas school in Warwick.
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Latest review:
Bricklaying- 28 Jun 2018
Greg has been first class. Reliable , friendly, and has produced first class work without any problems. I will definitely be contacting him again with more work.
WDH Construction & Building Services
Rating: 4.6 out of 5
Extension Builder in Birmingham
My name is Wayne Humphryes I have over 30 years experience in the Building and Construction Industry. I offer very competitive rates and free quotation with no obligation. I have a small team of tradesmen - plasterers, plumbers, electricians, brick layers and joiners. No job is too big or too small.
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Latest review:
Extensions- 10 Feb 2021
Wayne built a large two storey extension off a steel frame above an existing garage for us. The job was complicated by party wall and planning issues which caused extensive delays but Wayne took it all in his stride. I have a fair bit of building experience and have worked with quite a few builders over the years and I would happily work with Wayne again, he is a good solid builder, very fair, has good communication and is excellent value for money. No hesitation in a full recommendation.
Cape’s Building Services Ltd
Rating: 5 out of 5
Extension Builder in Birmingham
Capes Building Services Find us on Instagram, Facebook & Google We specialise in home extensions, loft and garage conversions, kitchen renovations, refurbishments, and bespoke joinery including fitted wardrobes and custom storage. We project manage every job from start to finish, taking care of the full build process and ensuring clear communication throughout. Friendly, reliable, and detail-driven, we pride ourselves on delivering a top-class finish on every project, built to last.
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Latest review:
Carpentry- 17 Feb 2026
Dan did a fantastic job building our partition walls. The work was completed quickly, efficiently, and completely hassle free. We especially appreciated how they were able to take on the job at such short notice, it made a huge difference for us. It was also a pleasure working with another family-run business. Highly recommend!
c&j developments
Rating: 4.8 out of 5
Extension Builder in Birmingham
hello. i run a small building company with over 30 years experience. our work ranges from the simplest of plumbing jobs to loft conversions and extensions. we are gas safe registered and carry out all gas works. we also work with planning and building regulations on extensions / lofts and garages.
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Latest review:
Extensions- 25 Jan 2019
I love my extension very much but I would not work with John again which is ashame because I have so many more plansfor my house. There was times where I felt his attitude to myself and the people working for him was rude. Also at the end of the build he did a couple things that I was not happy with, like leaving a wall of electrics from the old kitchen which had been plastered and now had to be damaged In order to remove the unwanted electrics. He also left a radiator pipe on the wall and didn’t put it in the new wall that had been made. His cost was fair but felt that there was a few things that could have been better and if he had of been more professional I would have had him back to build my porch.
BB bricklaying services
Rating: 4.6 out of 5
Extension Builder in Birmingham
I am a qualified Bricklayer with over 18 years of experience working in the construction industry. I have worked on building sites for housing and completed building projects in the private and public sector. I am highly efficient, able to produce high quality work whilst taking ownership in organising materials required for each job. Feel free to contact me for quotes and advice, I am happy to help. Thank you
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Latest review:
Repointing- 4 Feb 2026
Billy is a very decent and genuine young man We are pleased with the work carried out by him and his team. They took on a project that had been left in a very poor and untidy state by previous builders Billy worked closely with us ,keeping us informed of the work he was undertaking and approached everything with professionalism and care
J S constructions
Rating: 5 out of 5
Extension Builder in Birmingham
I have worked on construction since I was 16 Years old and I have lots of experience I have been running js construction for 10 years Are you looking to have an extension built to create more space in your home / kitchen / bathrooms / painting and decorating / patio and drive. Here at JS construction we are proud to be a small, friendly company who provide a range of building services at very competitive prices.
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Latest review:
Carpentry- 25 Feb 2020
Jeton and high team come very highly recommended. They took over my project after the previous builders left part way through. The project was a demolition and rebuild of a large 5 bedroom period house. Jeton has a number of skills and was able to completely take over the roofing, carpentry work, driveway and even the plumbing. The work was done to a very high standard. He was is a honest, knowledgable, hard working and reliable tradesman, whom keeps his customers informed of the progress and gives very good advice with all aspects of the build. I would not hesitate to recommend to him and intent to use his services again soon.
Unique Construct limited
Rating: 5 out of 5
Extension Builder in Birmingham
Over 15 years experience in building industry. We specialise in rendering, plastering and tiling.We can undertake the variety of domestic and commercial construction jobs and covering the most of the West Midlands area.
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Latest review:
Plastering- 23 Feb 2021
absolutely phenomenal service. Highly recommend. harpreet.
J&O Builders ltd
Rating: 5 out of 5
Extension Builder in Birmingham
We have a highly skilled and professional team of builders, who have all been in the trade for 30+ years. We take care of every aspect of the project and take all the stress away from the client. At J&O we pride ourselves on the attention to detail and ensure all the work we carry out is to a high standard. We specialise in: Extensions, house renovations, landscaping , knock through’s, Brickwork and ground works. We are a friendly, reliable and approachable team.
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Latest review:
Extensions- 3 Aug 2022
Neil from j&o builders was excellent at keeping me up to date with the progress and also excellent with his advice. I would highly recommend using j&o builders for your project without hesitation. Looking forward to using them again for some extra work next year.

4.4

Top rated Extension Builders

Our Extension Builders in Birmingham, are rated 4.4 out of 5 based on 17 reviews from customers like you.

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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 Birmingham?

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

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

What are the hourly rates of extension builders in Birmingham?

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

Find extension builders in Birmingham with MyBuilder

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

Step 2: Compare different extension builders in Birmingham

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

Step 3: Hire Birmingham extension builders with confidence

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

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

What to ask a Birmingham extension builder before hiring?

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

An extension builder in Birmingham 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 Birmingham 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 Birmingham?

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 Birmingham 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 Birmingham 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 Birmingham

Can an extension builder in Birmingham help with planning permission?

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

Many Birmingham 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 Birmingham help with materials and finishes?

Yes, most extension builders in Birmingham 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.