Extension Builders in Crawley, South East England

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.6 (15 reviews)

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Some of our top rated extension builders in Crawley, South East England

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Jarvis Building Services
Rating: 5 out of 5
Extension Builder in Crawley, South East England
We are a family run business with over 40 years experience in the building industry. We take enormous pride in our workmanship and the quality of the finished product. We are also very trustworthy and reliable and at lease 50% of our work is word of mouth or repeat custom and this is something we are very proud of.
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Latest review:
Restoration & Refurbishment- 14 Oct 2025
Peter and team did a brilliant job refurbishing our kitchen. He organised building control sign off for knocking down an internal wall. He sourced new glazing for us and designed and built a custom bench seat. He assisted us with ordering the right units for our kitchen. He was great at problem solving along the way e.g. cutting cornice to fit tricky corners. The team were courteous and left our house tidy at the end of each day.
Matthews Project Services LTD
Rating: 4.6 out of 5
Extension Builder in Crawley, South East England
Hello, I’m Leigh Matthews, Managing Director of Matthews Project Services Ltd (MPS). We’re a Sutton-based company specialising in high-quality construction and project management services across London and the South East. With over 17 consecutive years of industry experience, we pride ourselves on delivering reliable, efficient, and cost-effective solutions whether it's residential refurbishments, commercial fit-outs or infrastructure works. We’re committed to clear communication, professional standards, and ensuring every project is completed to the highest level of satisfaction. No job is too big or small, and we’re always happy to offer advice or a free quote.
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Latest review:
Restoration & Refurbishment- 2 Apr 2026
Really pleased I chose Leigh Matthews for this job. We were taking over a building that was unoccupied for 18 months and there were some issues with that, The team were excellent, and they finished the 4-week job on time, and right on budget. They were helpful and considerate and left the premises clean and tidy. They were also able to help out with some problems with the plumbing that were not in the original scope. I loved the way they did the estimate and the invoicing. Breaking all the items down into the individual tasks and at the end of each week, itemising which tasks were complete and a %age on those in progress. I would not hesitate to employ them again
Evolve Building Solutions-Property Maintenance-Handyman Services
Rating: 4.9 out of 5
Extension Builder in Crawley, South East England
Evolve Building Solutions, Property Maintenance & Handyman Services is focused on providing high-quality service and customer satisfaction within the domestic and commercial property market, we will do everything we can to meet your expectations. We are at the moment commited to extensive works in Spain 2018.
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Latest review:
Carpentry- 17 Oct 2015
Firstly, I would like to thank Mark for the excellent work he completed over the past week. My wife an I are both extremely happy with the professional manner Mark presented and the work he carried out was exemplary. In addition, once the job was completed Mark left the work area spotless. Hiring Mark for your next job will mean you are selecting someone who will meet and then exceed your expectations at a price that is competitive.
Woodhatch Carpentry&Joinery
No reviews yet
Extension Builder in Crawley, South East England
Experienced carpenter with over 15 years in all aspects of carpentry. Highly passionate about delivering safe, high-quality work, consistently completing projects on time and to an excellent standard.
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Intercleanse Ltd
No reviews yet
Extension Builder in Crawley, South East England
Intercleanse have been established for approx 15 years and undertake all aspects of building works. We undertake building works for Greggs the Bakers, Sussex Housing Group, Leaders Estate Agents, Main Car Dealerships - Motorline. We also carry out customer care works for many big house building companies i.e Ward Homes
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Sceptre construction
New on MyBuilder
Extension Builder in Crawley, South East England
Sceptre Construction is a full-service residential building company specializing in high-quality domestic projects. We manage every phase of construction from initial groundwork to final hand-over, delivering projects on time, within budget, and to strict building control standards. Our core services include: New Build Houses: We manage turnkey construction for bespoke residential properties, collaborating with architects and structural engineers to deliver energy-efficient, modern homes. Home Extensions: We specialize in single and double-storey rear, side, and wrap-around extensions. Our team ensures structural seamlessness, precise brick-matching, and complete internal fit-outs while managing all building regulations. Premium Garden Rooms: We design and construct fully insulated, double-glazed garden buildings. Equipped with full electrical and heating integrations, these structures are built for year-round use as home offices, gyms, or studios.
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KLG building solutions ltd
No reviews yet
Extension Builder in Crawley, South East England
Family run building company with over 25 years experience. Extensions, garage conversions, loft conversions, garden offices/gyms, new builds and experienced in HMO builds. Carpentry, 1st and 2nd fix. Landscaping and driveways.
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Watson Bros. Building Ltd
No reviews yet
Extension Builder in Crawley, South East England
We are a bonafide building company with all aspects of carpentry, brickwork and roofing covered in house (full-time employees). Check our website. We have an excellent reputation and loyal to our company.
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sahil
No reviews yet
Extension Builder in Crawley, South East England
At our company, we specialize in delivering comprehensive residential and commercial property improvement services, combining technical expertise, craftsmanship, and attention to detail in every project we undertake. With a strong commitment to quality, safety, and customer satisfaction, we provide a full range of interior installation, renovation, and finishing solutions designed to transform spaces into functional, beautiful, and long-lasting environments. Our Mission Our mission is simple: to provide reliable, high-quality workmanship across multiple trades while ensuring that every client experiences professionalism, transparency, and value. We understand that homes and business spaces are more than just buildings—they are places where people live, work, and create memories. That is why we approach every project with care, precision, and dedication. What We Do We offer a wide range of services, making us a one-stop solution for property upgrades, renovations, and improvements. Our expertise covers the following key areas: Electrical Installations We provide complete electrical services for both new constructions and renovation projects. Our electrical work includes: Installation of lighting systems (indoor and outdoor) Socket
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Ordex Construction ltd
No reviews yet
Extension Builder in Crawley, South East England
Ordex construction are a family run construction company with 40years plus experience in social housing, we have many clients in this sector such as CBC, BHCC, Mears, Wates, Mps, Axis, Mitie. We also provide our services to the private rental sector. We have completed various planned works such as , full re-roofs, FSG replacements, finlock gutter removals, EWI- timber framed insulation & loft insulation. We also provide our services to repairs response maintenance works- roof repairs, FSG repairs, sky vac gutter cleaning, Bricklaying, pointing works, fencing & Damp and mould reports & services. We will send a full company profile covering all our other services when required.
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Ultimate contractors Ltd
No reviews yet
Extension Builder in Crawley, South East England
This is Ultimate Contractors LTD. We undertake all kind of building work. Our prices are unbeatable. We always focus on delivering quality work within time frame. We have a team of professionals and you dont have to worry about anything once we are on site. All kind of certificate will be provided. We are fully insured. Thank you for visiting our profile & shortlisting us.
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Moysons ltd
No reviews yet
Extension Builder in Crawley, South East England
At Moysons, we produce quality work with honest pricing. Owned and operated by David Moynihan, a specialised bricklayer with over 15 years experience in the house building industry he is a highly competent construction project manager and building contractor. We predominately work on large rear extensions, with full renovations inside. We have a long list of very satisfied customers, all enjoying their new Kitchens, Bathrooms, Patio's and Driveways.
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ERCI BUILDING LTD
Rating: 5 out of 5
Extension Builder in Crawley, South East England
We are team of builders specialising in loft conversions, extensions and all aspects of general building and refurbishment, re-renovating homes. High quality standards are our priority. Specialists of our company have 10-20 years experience. Professional quotes in shortest time.
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Latest review:
Carpentry- 7 Nov 2013
Ervins done a great job. The wardrobe is now repaired and sturdy. In fact it is much more solid than it was before. He was also able to attend at short notice as everything had been taken out of the wardrobe so needed the job done urgently. Would not hesitate to use him again.
Obbrickwork
No reviews yet
Extension Builder in Crawley, South East England
Welcome to OB Brickwork by Ollie Attwood, where quality craftsmanship and customer satisfaction comes first. With over five years of experience, we take pride in delivering exceptional brickwork, ensuring every project is completed with precision and care. Your vision is our priority, and we’re committed to exceeding expectations with reliable, high standard results.
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DMJ BUILDING AND ROOFING
Rating: 5 out of 5
Extension Builder in Crawley, South East England
We're a very experienced company in all aspects of building and roofing ranging from the most simple jobs to new build full renovation barn conversion were all so specialist in all aspects of roofing and specialist in grp fiberglass roofing. We also provide a bathroom and kitchen service
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Latest review:
Extensions- 10 Apr 2026
The most lovely builder to have around, super knowledgeable and reliable and an excellent level of work from beginning to end. The job took longer than expected but the outcome was definitely worth the extra time to achieve an amazing result. Would absolutely recommend and will be using again for future projects.
S.Mayes builders
Rating: 5 out of 5
Extension Builder in Crawley, South East England
I'm a professional builder with 30 years experience. I pride myself on my reputation-offering a reliable service at a competitive rate.I always turn up on time.I enjoy what I do & this shows in the standard of my work & the relationships I build with clients.
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Latest review:
Bricklaying- 12 Apr 2010
Steve was very professional from beginning to end. Turned up on time and completed the job to an excellent standard. Would definetly use again.

3.6

Top rated Extension Builders

Our Extension Builders in Crawley, South East England, are rated 3.6 out of 5 based on 15 reviews from customers like you.

Quality screening

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What types of services are offered by local extension builders in Crawley, South East England?

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, South East England 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, South East England who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Crawley, South East England?

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

Find extension builders in Crawley, South East England with MyBuilder

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

Step 2: Compare different extension builders in Crawley, South East England

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

Step 3: Hire Crawley, South East England extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Crawley, South East England, 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, South East England extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Crawley, South East England extension builder before hiring?

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

An extension builder in Crawley, South East England 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, South East England 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, South East England?

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, South East England 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, South East England 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, South East England

Can an extension builder in Crawley, South East England help with planning permission?

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

Many Crawley, South East England 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, South East England help with materials and finishes?

Yes, most extension builders in Crawley, South East England 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.