Extension builders in Crawley

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (9 reviews)

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Some of our top rated extension builders in Crawley

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L.A. Morris groundworks Ltd
No reviews yet
Extension Builder in Crawley
20 years experience - We cover Groundwork’s, brickworks, driveways, big developments, fencing, new builds, very reliable and excellent service.
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Rockstead Groundworks & Construction LTD
No reviews yet
Extension Builder in Crawley
At Rockstead Groundworks & Construction Ltd, we bring over 20 years of hands-on experience in the building and civil engineering trade, delivering reliable, high-quality workmanship on every project — from the ground up. Founded and led by an ex-military professional, Rockstead is built on the same core values that define successful operations: discipline, precision, reliability, and pride in every task. We approach every job — large or small — with meticulous attention to detail, clear communication, and a commitment to doing things the right way, first time. Our services cover all aspects of groundworks, foundations, drainage, driveways, patios, concrete works, and general construction, serving both domestic and commercial clients across the South East.
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Design Build Maintain Services LTD
Rating: 5 out of 5
Extension Builder in Crawley
We carry out electrical installations and minor works from a new socket,fault finding to complete installations. We specialise in smart heating and smart home controls. We also carry out commercial and domestic alterations and repairs. From decorating to complete extensions. We are a full NICEIC registered installer.
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Latest review:
Electrical- 31 Oct 2017
Excellent Work fixed the issue in no time at all.
Global Construction & Supply Ltd.
No reviews yet
Extension Builder in Crawley
Complete house renovation and bathroom fitting company which works in commercial and residential sector.We are team of 5 tradesman's each of us is with 10+ years of experience.We do any type of house and bathroom renovations ,extensions,tiling and preparation for tiling.
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Project Property South East Limited
No reviews yet
Extension Builder in Crawley
I am a local builder , we offer all building works from changing a fuse to building a warehouse , I have 20years plus experience in the industry
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Joehodgkin
No reviews yet
Extension Builder in Crawley
Joe Hodgkin carpenter for 15 years, I’ve worked on all kinds of projects 1st and 2nd fix carpentry cover everything
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Quality Brickwork GB Limited
Rating: 5 out of 5
Extension Builder in Crawley
‘Quality brickwork’ is a newly established company of professionals who take pride in their work.The initial idea from the founders is to prove that quality work can be done to highest standard on a reasonable time frame and fare price. Bricklaying is a trade with long traditions and great value for residents who wants to build their dream home. Quality brickwork LTD is a business who understands their customers’ needs.Just contact us for a friendly chat or a completed quotation!
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Latest review:
Bricklaying- 8 May 2024
We Initially hired Svet and the team just to build two walls in the front garden. We've been so impressed with them that we then went on to use them for a full two-storey extension. I highly recommend!
S.Brooks Brickwork
No reviews yet
Extension Builder in Crawley
Hi my names sean, I am a bricklayer based in Crowborough.I have been working in the trade for 18 years and this is shown in my work. I have a diverse skill set, passion and ensure every job is done to a high standard. I cover all aspects of building work such as: - Garden walls - Extensions - Patios - Driveways - Re-pointing
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ANACOND LTD
Rating: 5 out of 5
Extension Builder in Crawley
Throughout the years in construction my father has gathered well balanced team with broad range of experience in every aspect of the job. After acquiring my engineering degree and some experience elsewhere, I re-joined my father once again to provide the service we are both proud of. Our background and experience in construction, design and engineering allows us to provide our clients with high quality service and ensure smooth work-flow of each project. Attention to detail is the key!
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Latest review:
Ground floor rear extension and Loft conversion. First and Second fix works including drainage, structural (block work, wood work and steel work) electrical, plumbing, plastering and tiling. All works completed to a very high standard, we found Arnolda's and his team very helpful, thoughtful and pro-active nothing seemed to be too much trouble for him, we are more than happy with AnA's Construction Developments.
MESHI HOMES LTD
Rating: 5 out of 5
Extension Builder in Crawley
Hi all. My name is Avni Meshi, I run my own company called Meshi Homes LTD. I have been in construction for more than 20 years, Our trade: Wall Insulation & Rendering, All Types of Rendering, Render and Brick slips, Extensions. I have a Health and safety policy in place and I have Public and employers liability insurance.
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Latest review:
Plastering- 8 Jun 2024
Meshi's team were polite, protected all the windows and doors, were very quick and the end result was perfect. I would recommend them to anyone contemplating rendering their property.
Yeoman Building Contractors
No reviews yet
Extension Builder in Crawley
Yeoman building contractors have been building in crowborough and surrounding areas for 32 years.we have a very friendly team of guys that are dedicated to their workmanship. We specialise in extensions, refurbishments, groundwork and new build. Driveway & patios in block paving tarmac & Indian sandstone. We have recently started doing fibreglass flat roofing.
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CMR Building and design Ltd
Rating: 5 out of 5
Extension Builder in Crawley
We at CMR are a property renovation company that has over 7 decades of combined experience within the real estate sector coupled with home-grown knowledge of West Sussex. We ensure the management team in place at CMR have all the tools required to facilitate any size project, encompassing everything from consultancy with an experienced architect and designers as part of our in-house teams. We specialise in all areas of renovation, loft and extensions.specialising in bathroom fitting and pitching fitting. This is to include working with foundations, building structure, window and door installation, kitchen and bathroom fitting, all electrical works and plumbing. We work with building control, architects and designers and structural design teams and our in house specialist building team. We have full liability insurance and references upon request. We offer a fully insured protection service on all building projects. We also offer an advisory service to start a project and facilitate the first stages of all works.
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Latest review:
Carpentry- 30 Jan 2026
Richard worked tidily and thoughtfully and did a great job of making our stairs safe. Including some extra support under more treads and really finishing off well. Very personable and professional.
FSB Company (UK) LTD
Rating: 5 out of 5
Extension Builder in Crawley
FSB is a well-organized contracting company with a team experienced in large-scale development projects with leading UK construction companies. Based primarily in London, we offer a variety of self delivered services, including complete extensions, and conversions, small works, structural alterations, steel work installations, ground work (foundations, drainage, concrete sub and superstructures), hard landscaping and paving and soft landscaping. We manage our sites carefully and have a digital site management tool kit. Our fully managed service connects skilled tradespeople with experienced construction management directly ensuring attention to detail that begins with our Contractors Proposals and continues through to practical completion and aftercare.
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Latest review:
Extensions- 17 Nov 2025
Freddie, Kaz and Dan are a great team. I felt they were friendly and professional throughout. Any slight niggles were discussed and solutions found, quickly and professionally. They were respectful and went out of their way to get on with all the neighbours. Over all I would say they are a team of very nice people, who care about what they do and take pride in achieving the result their clients are after.
Sharphurst Contractors Ltd
No reviews yet
Extension Builder in Crawley
Sharphurst Contractors provide a complete range of building and property services. We are committed to providing a high-quality, reliable and cost-effective service, delivered by our friendly team who hold a diverse range of knowledge in all key areas of the business.
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Crown plastering & building
Rating: 5 out of 5
Extension Builder in Crawley
A family business run by father and son with over 30 years experience combined. Being a family business our work is our reputation and therefore all works carried out are to maximum potential! Clean, realiable and great pride is taken leaving customers happy and without hesitation for recommendations. Specialising in plastering, rendering, traditional Italian Venetian polished plaster and all aspects of building works also undertaken.
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Latest review:
Bathroom Fitting- 20 Sep 2017
We hired Luca for a job that involved a variety of work across our entire flat. Being totally new to renovation work and having been stung by other builders, meeting Luca was a breath of fresh air – he was friendly, helpful and honest. Luca did an great job for a very reasonable price. He’s fairly new to contracting bigger jobs, but he’s got a lot of previous experience as a tradesman and his plastering in particular was perfect – we’ve had loads of compliments on the quality of his walls and ceilings. He was always on time, always communicated with us fully, and was a pleasure to have around the flat. He made a real effort to keep disruption as minimal as possible and was very patient with us about stuff needing to be moved from one place to another. It wasn’t the easiest job and there were a couple of problems and extras, but Luca takes a lot of pride in his trade and worked extremely hard to keep us happy. We had a couple of plumbing issues arise but he went well above and beyond to resolve them, coming back for 2 days after the job was due to be finished to make sure that everything was working properly. This is far more than we expected, and we did really trust that Luca wasn’t the sort of person that would leave anything unfinished. We’re so chuffed that we met Luca and with the excellent work he did, and would love to work with him again. Luca is going to go on to big things, so if you get the chance to hire him now, we'd recommend him without hesitation.
The Bleu Group
No reviews yet
Extension Builder in Crawley
The Bleu Group are a highly experience building team who have been working together for over 10 years. We cover all aspects of building works; from start to finish. No job is too big or too small for us.
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4.4

Top rated Extension Builders

Our Extension Builders in Crawley, are rated 4.4 out of 5 based on 9 reviews from customers like you.

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What types of services are offered by local extension builders in Crawley?

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

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

What are the hourly rates of extension builders in Crawley?

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

Find extension builders in Crawley with MyBuilder

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

Step 2: Compare different extension builders in Crawley

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

Step 3: Hire Crawley extension builders with confidence

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

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

What to ask a Crawley extension builder before hiring?

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

An extension builder in Crawley 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 Crawley 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 Crawley?

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 Crawley 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 Crawley 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 Crawley

Can an extension builder in Crawley help with planning permission?

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

Many Crawley 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 Crawley help with materials and finishes?

Yes, most extension builders in Crawley 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.