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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Maxwell building services
Rating: 5 out of 5
Extension Builder in Crowthorne
I’m Jamie, an experienced builder with a wide skill set looking for work in the local area. I would be interested in taking on the following jobs: bricklaying, fencing, landscaping, room conversions, floor screeding, stud walls and drywall etc.. free quotations available upon request. Look forward to hearing from you.
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Latest review:
Bricklaying- 13 Dec 2025
Already reviewed, but I really have nothing to complain about it was all good.
LJC Construction
Rating: 5 out of 5
Extension Builder in Crowthorne
Hi my name is Liam Chiles, I have been working in the construction industry since 2012. I have achieved an extended diploma in Construction, and I have also got a diploma in Carpentry, one of my specialties. My practical experiences in general building spans several years, which includes Extensions, Knock-Throughs, Brickwork, Carpentry, Roofing and Landscaping (Patios). I also have connections with a variety of trades so I can see your project all the way through.
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Latest review:
Bricklaying- 28 Nov 2020
Great job bricking up a window. Liam turned up on time, stuck to the quote and was very pleasant and helpful. We would definitely recommend him
LABURNUM CONSTRUCTION LIMITED
Rating: 5 out of 5
Extension Builder in Crowthorne
Here at laburnum construction we Specialize in home improvements including extensions kitchen knock throughs and steel alterations with over 15years experience
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Latest review:
Extensions- 14 Nov 2023
Russell and his team have been brilliant throughout. You take a punt when hiring a builder and we couldn’t have chosen better. From the initial meeting right the way through he was communicative and very clear with regards spend and schedule. He was very conscientious about being tidy which, given building an extension is a messy process, says a lot. We had a single story side extension and the whole process from start to finish was very speedy. We never felt like there was a lull in progress and things always seemed to be moving in the right direction. I would highly recommend Russell and his team if you’re looking at having an extension. I don’t have a negative comment to make. All positive. 👍
RSB building
Rating: 5 out of 5
Extension Builder in Crowthorne
Hi I’m Rich and I run RSB building I cover everything from new builds , extensions , refurbs , interior work to landscaping . I’ve been in the building trade for 12 years and have a great workforce and reliable sub contractors. We are flexible , tidy and always aim to get the job done on the agreed time scale. Look forward to working with you.
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Latest review:
Groundwork & Foundations- 13 Apr 2024
Richard turned up when he said he would. He did a good job at a reasonable price.
j ward joint sealing specialists ltd
Rating: 5 out of 5
Extension Builder in Crowthorne
Est 2010, we have grown our business and expanded . We have worked for some of the largest developers in the country on properties up to £70 million. 2015 was the turning point for us going to a Ltd company ahead of target. We expanded our business to bespoke design and build and specialize in refurbishment properties and major extensions with a large client base across the east, south, and west counties, including work in the Cotswolds. We have now expanded in PROFESSIONAL SNAGGING. We also specialize in feature wall paneling. All of our tradesmen are certified in their fields. References and photographic evidence can be provided. We take the strain from any job and provide all trades, Project management and Produce quality work to the highest of standards.
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Latest review:
Extensions- 8 Oct 2025
Jason and his team have just completed our wraparound extension, and the result has exceeded all expectations. Their workmanship, accuracy, and attention to detail are outstanding, and the whole process was smooth and stress-free. They stuck to timings, kept the budget in mind, and made everything feel effortless. Partway through the build, Jason had to undergo an operation and was signed off for five weeks. Remarkably, nothing was delayed — his team carried the project seamlessly, and with Jason still on site when he was able to be, everything ran perfectly. It’s a real credit to how capable they all are and the consistently high standards they work to. The only negative thing I can say is that we were sad to see them leave – they’ve been such a positive part of our daily lives over the past eight weeks. The finish is exceptional and we’re absolutely over the moon. We couldn’t recommend Jason and his team highly enough.
Inspire Properties Development Ltd
Rating: 5 out of 5
Extension Builder in Crowthorne
Refurbish Building Extension Renovation All building jobs
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Latest review:
Electrical- 13 Feb 2020
Came right on time and the job was sorted same day
Transformation London ltd
Rating: 5 out of 5
Extension Builder in Crowthorne
Build4Me is part of Transformation London Ltd - a small professional building company, with a very skilled workforce. We undertake all types of building work from small maintenance work, large two storey extensions and new builds. We have earned a good reputation for workmanship and reliability. Our skilled workforce have a combined 40 years experience, we are experts in our field
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Latest review:
Jim from Transformation London Ltd has carried out works for our property company since 2016. I have found him and his team to be reliable, trustworthy and considerate.
Ascension Property Developments & Construction
Rating: 5 out of 5
Extension Builder in Crowthorne
Ascension Property Construction provides residential maintenance, refurbishments, and extensions for homeowners, landlords, estate agents, and property investors across Reading, Berkshire, and surrounding areas. We deliver professionally managed building works ranging from small repairs and void works through to full refurbishments and residential extensions. Ascension is led by a trusted building surveyor, allowing all projects to be clearly scoped, transparently priced, and carefully managed from start to finish. Our clients choose us for our reliability, communication, and attention to detail. We focus on clean sites, realistic programmes, and controlled delivery, reducing disruption and avoiding unnecessary surprises. Whether maintaining a property, upgrading a home, or adding value through refurbishment or extension works, Ascension provides a dependable, professional residential construction service.
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Latest review:
Extensions- 27 Apr 2026
We enquired about a front porch installation and were impressed to receive a prompt response from Ascension Property Developments & Construction. From the outset, they were responsive, professional and easy to communicate with. After scheduling a call, they took the time to clearly and thoroughly explain the entire process, answering all of our questions and ensuring we felt confident moving forward. They were also very accommodating with scheduling, arranging for the work to begin while we were on annual leave, which made things incredibly convenient for us. Once the project started, the team worked efficiently and kept us informed every step of the way. They even set up a group chat to provide daily updates and create a space where we could easily ask questions or raise any concerns. This level of communication made a big difference and gave us real peace of mind throughout the entire process. The end result is fantastic and our new porch looks beautiful!
Ayton-Smith LTD
Rating: 5 out of 5
Extension Builder in Crowthorne
Ayton-Smith Construction brings a wealth of experience to every job and project. With over 15 years of experience, we have created a reputation for providing outstanding construction services. We specialise in all aspects of construction and hard landscaping, and work closely with our customers to ensure the final result exceeds your expectations. Please review our previous work in the photo gallery.
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Latest review:
Groundwork & Foundations- 2 Apr 2024
Brad was very responsive and the job was quickly arranged. He was able to turn up the next day (particularly helpful as the work was unplanned and needed doing fast!) and worked solidly and tidily. Brad took time to understand what exactly we were looking to achieve and completed the work to a very good standard, even ensuring that the open excavations left behind were safely taped off for the safety of passing pedestrians. The work was done quickly, correctly and at a good price. I wouldnt hesitate to recommend Brad to anyone looking for good quality groundwork at a good price. Thanks again, Brad!
Stonehaven Building and Landscapes
Rating: 5 out of 5
Extension Builder in Crowthorne
Hi we are a family run business with over 30 + years experience in the trade. Work normally carried out driveways patios brickwork/garden walls turfing fencing all general hard landscaping. We pride ourselves on providing our customers with a professional friendly service to the highest of standards. We at stonehaven building an landscapes are clean and tidy ,reliable,hard working, friendly, professional and easy to communicate with.
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Latest review:
Driveways (Paved & Loose)- 18 Jan 2026
Five stars for all the jobs they have done for me. I hired them for a new drive paving, garden patio and fence. I was especially impressed by Henry's customer mind base service. When I asked for something, he managed all the requests for me in friendly and good manner.
Robert Hall Builder Uk
Rating: 5 out of 5
Extension Builder in Crowthorne
Hi I am Robert Hall a builder all my life. My company is Rob Hall Builder uk, I am vat registered. I do have public liability insurance. Up to £3,000,000 I have a diploma in advanced building technology from Epsom university. I am a qualified Craft bricklayer and builder. We undertake all types of building works. Up to and including works of over £500,000. But smaller project make up the majority of our work.
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Latest review:
Extensions- 10 Jul 2025
Good, reliable and quick. Highly recommend 👍
blu kube building services
Rating: 5 out of 5
Extension Builder in Crowthorne
We have been running as a building company for over 20 years. We do all building works from extensions, to kitchen and bathroom installs , We also cover all electrical works from Rewires to changing light fittings and sockets and are part p and niceic registered we can test all works and issue certification . We also offer full plumbing works from installing new radiators or just changing a tap
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Latest review:
Electrical- 22 May 2026
Dan came to wire in my cooker hob , punctual, did a great job very friendly and informative. Will definitely be calling him for any future works , thanks Dan
Lakshmi Vilas Ltd
Rating: 5 out of 5
Extension Builder in Crowthorne
We are based in Berkshire and have two years of experience in delivering high-quality construction services. Our team is dedicated to providing exceptional craftsmanship and customer service, ensuring that every project is completed to the highest standards of client requirements. Since our establishment in 2022, we have completed a variety of projects residential projects. We specialize in new builds, renovations, extensions and garden tile paving and our skilled team is equipped to handle projects of all sizes and complexities. We take pride in our ability to work closely with clients, architects, and subcontractors to deliver projects on time and within budget.
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Latest review:
We recently had the pleasure of working with Lakshmi Vilas Ltd, and we couldn’t be happier with the results! They undertook a major project for us in Reading, which included extending our house with bathroom, renovating the entire interior, and paving tiles in our backyard. Every aspect of their work was carried out with professionalism, attention to detail, and exceptional craftsmanship. The house extension was seamlessly integrated with the existing structure, and the renovations transformed our home into a modern, comfortable, and beautiful space. The team was punctual, respectful, and kept us updated throughout the process, ensuring that everything was completed on to a high standard. We highly recommend Lakshmi Vilas Ltd to anyone looking for reliable and skilled builders. Their dedication to quality and customer satisfaction truly set them apart. Thank you for turning our vision into reality!
CC PROPERTY MAINTENACE
Rating: 5 out of 5
Extension Builder in Crowthorne
Hi there my names callan I have 11 years experience in electrical, plumbing, tiling and bathroom fitting and a pretty good general knowledge of most things in the industry. I'd like to think my customer service is one of my main attributes, I'm very driven and looking to build a great reputation. Along with fair prices and great workmanship
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Latest review:
Electrical- 29 May 2024
Callan was excellent contacted immediately and very reasonably priced would definitely use again
RSW Projects LTD
Rating: 5 out of 5
Extension Builder in Crowthorne
With over 25 years experience behind us in the building and flooring industry our team is trained to take on any type of project. With our many years of experience we appreciate the need for a space or floor that not only looks great but is practical and meets the needs of our clients. Our free on site survey will help us and yourselves to decide what you require then provide you with a detailed quotation
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Latest review:
Ross's brother Brad came to fit our vinyl floor and did a very neat job. Friendly, arrived on time, worked efficiently and to budget. I would recommend.
Gary Howe Brickwork
Rating: 5 out of 5
Extension Builder in Crowthorne
I Have been a Bricklayer for 27 years and take great pride in the neat and tidy brickwork I produce. The last couple of years I have concentrated on smaller jobs. work undertaken Extensions New builds Maintenance Brickwork Blockwork Re pointing patios Garden work repairs shed bases Pressure washing Garages Structual alterations and repairs please check out our pics
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Latest review:
Extensions- 26 Oct 2021
Amazing job on my new garage. Gary and his team are brilliant, polite, tidy very hard workers and nothing is to much trouble them.Gary went through everything from the beginning til the end, nearly finished. I would like to say a big thank you to them all and would have them back anytime Mary Goolding

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.

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 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.