Extension Builders in Crowthorne

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (17 reviews)

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Some of our top rated extension builders in Crowthorne

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Ctcarpentryandbuilding
No reviews yet
Extension Builder in Crowthorne
All aspects of carpentry and general building undertaken. From groundwork’s to bespoke carpentry all work is carried out to the highest standard.
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AC
No reviews yet
Extension Builder in Crowthorne
All aspects of buildings extension loft conversion refurbishment and kitchen/bathroom fitter .25 years experience we work as team reliable and hard working. All the works be done to high standard and live the area clean and tidy. Reference and side visit available
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Ss digging & building development limited
Rating: 4 out of 5
Extension Builder in Crowthorne
I’m a General construction builder ,I have 15 years experience to undertake Ground work ,New extension ,loft conversion ,summerhouses and all type of related construction work .
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Latest review:
Extensions- 22 May 2021
I was left in a mess by cowboy builders. I found Sukhvindsr Singh from mybuilders and then I had nothing to worry about. He completed the project with utmost responsibility from erecting heavy steals to all the way up to finish. I was amazed with the level of his skills and above all honesty. This was a massive 66sqm single storey extension and he put up structure, brickwork, fibreglass roof , underfloor heating , tiling,electric work . He even went beyond our agreement to do bits and pieces to make sure i donot get stressed out. I have given him another job in same property to do patio 88Sqm with porceline tiling. Feature wall prepared by him stood out . Highly recommended and i will be surprised if he does recieve similar feedback in his future jobs.
DMJS Developments
Rating: 5 out of 5
Extension Builder in Crowthorne
We are a friendly, reliable and highly skilled business who undertake all aspects of building, landscaping and carpentry. we take great pride in every job we do no matter how big or small it is.
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Latest review:
Extensions- 13 Oct 2021
I would definitely use Dan again. He gained our trust very quickly and was professional and reliable throughout our project, with a good all round knowledge, allowing him to give advice and options on the different aspects of our extension. He worked with us through numerous changes to plans and his friendly team were a pleasure to have in our home. Dan’s quote was not the cheapest we received, but he stuck to it with no surprises, which is exactly what you want when working with a limited budget. Thanks again to Dan, Paul, Alex, James, Jack and his extended team.
Mse building ltd
Rating: 5 out of 5
Extension Builder in Crowthorne
MSE Building and Carpentry Ltd, based in Basingstoke, provides a variety of building and carpentry services in Hampshire and surrounding areas. We strive to deliver our very best, providing top quality results to ensure we go above and beyond our clients expectations. We work closely with our clients from the outset to deliver great results, tailored to your personal tastes. We take pride in our attention to detail, efficient and professional service. With 10 years experience and full insurance, no job is too big! Please contact us for a free quote.
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Latest review:
Extensions- 11 May 2026
These guys are the real deal. So very impressed with the work that that have done. You can tell a lot about a building company with what condition they leave the building site and they left it spotless and very clean. Which lends itself to the high level of craftmanship they have put into converting my brick shed into a gym. Nothing is a problem for them and they turn up on time when they say they are and crack on with it. Mark offers recommendations for the work and due to this what I initially requested is even better than I expected. It has been a real pleasure having them on site and would offer them future work for sure.
HW Brickwork & Construction
No reviews yet
Extension Builder in Crowthorne
HW Brickwork & Construction is a local Bricklayer with 12 years of experience throughout all aspects of brickwork. We specialise in all area’s from new builds & extensions to small walls & repointing. We take pride in every detail to provide the best service possible, With ample knowledge and experience from a trusted qualified bricklayer based in Hampshire. Area’s we cover are Hampshire, Berkshire & Surrey Get in touch for a hassle free quotation
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JMD Property Solutions
Rating: 5 out of 5
Extension Builder in Crowthorne
Hi we are a family run business. We have over 35 years of building experience. We are able to offer a full turnkey project solution for our clients. From design and planning to site setup, through to main build and finishings, then to handover day with your dream home complete. All aspects of home improvement and new design&build projects undertaken. Extensions, loft conversions, groundwork’s and renovation/refurbishment are the main areas of work we cover.
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Latest review:
Extensions- 22 Dec 2025
We contracted JMD for a detached house project to demolish an old 1970s extension & rebuild larger 70sqm extension, an outside terrace patio and remodel some of our internal ground floor setup. Project started in Feb2025 and JMD made super quick progress on the build during the dry spring months. We had to pause JMD due to our timelines which they were fine with and finally completed end-to-end by Oct2025. What makes JMD standout for us was their team of employees – they don’t use too many contractors, most of their team are employed by JMD and are a loyal hardworking professional squad. Liam, Mark, Chip, Ross, Zac and the rest – all top class! We had some additional projects and requirements mid-project, JMD provided good pricing along the way which were all totally fair and priced as incremental add-ons. YES – there are always bits that could be better, but JMD did an excellent job on the whole. Site left clean, tidy, complete and all post project snags dealt with! THANKS JMD!
Legacy Home Contractors ltd
Rating: 5 out of 5
Extension Builder in Crowthorne
Legacy Homes Ltd is a Hampshire-based building company specialising in high-quality domestic and commercial construction. We deliver reliable, well-managed projects with a strong focus on craftsmanship, integrity, and long-term value.
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Latest review:
Work was completed efficiently and effectively. Excellent craftsmanship, professional approach and minimal intrusion on the rest of the house. Would definitely recommend and employ again.
S&H SECOND FIX
No reviews yet
Extension Builder in Crowthorne
Second fix carpentry we do extensions reburbs drainage drive ways we cover all bases of the building industry
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B&D Builders ltd
No reviews yet
Extension Builder in Crowthorne
Building with quality and care! 🏡🔨Universal Construction | We prioritize your vision and satisfaction | Let's create something extraordinary together! Garden houses , Extension, Bathroom, Roofing.
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MacsDevelopments
Rating: 4.4 out of 5
Extension Builder in Crowthorne
My names Conor Mackenzie, I have been in the industry since a young age- I am very experienced in all aspects of work including; plastering, carpentry, windows and Conservatory‘s, landscaping and all general building work. There is no job to big or too small, and will always give a fair price! I have put pictures below of some of my work- feel free to have a look and if you are interested I’ll be in contact :)
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Latest review:
Landscaping- 26 May 2020
Really great finish on the garden which was a mess before the boys started. Highly recommend, nice guys and really happy with the garden.
NC Construction & Landscaping
Rating: 5 out of 5
Extension Builder in Crowthorne
NC Construction & Landscaping We offer a complete building and landscaping service. We have a team of professional people who take pride in there work and do what is required for the customer.
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Latest review:
Bricklaying- 31 Oct 2019
Nic, did a super job. The finish detailing of the brick wall connections look great. He went above and beyond in regard to making sure he did what I wanted, each step of the way, and didn’t assume anything. He tidied up afterwards, helped with getting materials sorted, offered to drive unused materials back to the builders yard for me, turned up on time, and was pleasant and friendly to have around. I would highly recommend him to anyone.
Under 1 Roof
No reviews yet
Extension Builder in Crowthorne
Under 1 Roof is a trusted design-and-build company serving Surrey, Hampshire and the surrounding areas. We specialise in home extensions, conversions, refurbishments, media walls, carpentry, loft solutions, and complete property transformations. With a strong focus on quality craftsmanship, clear communication and reliable project management, we deliver work that is built to last. From initial design and structural planning with our engineer and architect, through to the final finishing touches, we provide a seamless service that keeps everything under one roof. Fully insured, highly rated, and committed to customer satisfaction, we take pride in turning ideas into beautifully finished spaces that add value to your home.
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ROCBUILD LTD
No reviews yet
Extension Builder in Crowthorne
RocBuild is a professional building company where customer satisfaction is our top priority. We predominately carry out extensions but offer all the associated trades separately too Our clients can rest assured all works are carried out to the highest standards complying with building regs
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TJ construction
No reviews yet
Extension Builder in Crowthorne
General builder with over 25 years of experience in the industry looking to help you make your dream home
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Sweeney & Sons Construction Ltd
Rating: 4.9 out of 5
Extension Builder in Crowthorne
Welcome. I have amassed nearly 10 years working and supervising within construction on both domestic and commercial buildings, large and small. Along the way i have also added a range of skills in different trades and i am confident in carrying out an array of tasks to the highest standards. Me and my team can construct and build from within the ground right up to the top of your chimney. Our services include groundworks, bricklaying, carpentry, roofing and hard landscaping. 2024 is the year i have decided to go independent, follow my goals and set up a company. Any queries then please do not hesitate to ask. Many thanks.
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Latest review:
Carpentry- 12 Jun 2025
Cameron put the basement stairs together from scratch, individually cutting out staircase using timber lengths. Tricky deep hole with a turn - so not a straightforward job. Managed it in 2 days. Was very pleased and nice job done, on budget and on time. Would highly recommend. 5 stars from me *****

4.1

Top rated Extension Builders

Our Extension Builders in Crowthorne, are rated 4.1 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 Crowthorne?

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

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

What are the hourly rates of extension builders in Crowthorne?

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

Find extension builders in Crowthorne with MyBuilder

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

Step 2: Compare different extension builders in Crowthorne

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

Step 3: Hire Crowthorne extension builders with confidence

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

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

What to ask a Crowthorne extension builder before hiring?

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

An extension builder in Crowthorne 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 Crowthorne 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 Crowthorne?

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 Crowthorne 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 Crowthorne 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 Crowthorne

Can an extension builder in Crowthorne help with planning permission?

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

Many Crowthorne 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 Crowthorne help with materials and finishes?

Yes, most extension builders in Crowthorne 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.