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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Intotheloft
No reviews yet
Extension Builder in Crawley, South East England
At Into the loft, we help to turn your ideas into a reality. Whether you are looking for a small home renovation, an extension or a complete re-build, we can help.
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Thomas Henton
No reviews yet
Extension Builder in Crawley, South East England
We undertake all forms of building work, renovations, loft conversions and full extensions. With a wide range skills ourselves and trusted subcontractors no job is a problem
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CA carpentry
Rating: 5 out of 5
Extension Builder in Crawley, South East England
I am a fully qualified carpenter, I have 5 years experience. I have carried out work from building whole houses to fitting a kitchen.
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Latest review:
Carpentry- 10 Jun 2018
Charlie is great, lovely guy, super professional and has done an excellent job.
Albatross Construction
Rating: 5 out of 5
Extension Builder in Crawley, South East England
We are a small builder and groundwork company based in South Croydon, with over 30 years building extensions and groundwork experience. Having completed many extensions localy and various groundwork projects. We have all our own plant and machinery which keeps us price competitive and never ask for money up front (unlike some other builders) Our service comes with fully compressive building all risk insurance and all work undertaken is guaranteed References are available on request
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Latest review:
Groundwork & Foundations- 26 Feb 2025
I hired John to build a concrete base for a garden building installation and he did a great job, resulting in follow-on work for him laying a new Indian sandstone patio in front of the building, which he also did to a high standard. After receiving several quotes from different firms, I selected John because he asked the right questions, clearly thought about the solution and was interested in ensuring the result was the right one right for me. He's a lovely bloke and a pleasure to have working here. He works on his own and for the most part keeps himself to himself, wasn't fussed about tweaking the scope here or there as the plan developed and kept the place pretty tidy throughout. I will be using him again for sure, so I wholeheartedly recommend John for any work you're considering hiring him for.
DG CONSTRUCTION
No reviews yet
Extension Builder in Crawley, South East England
Hi, My name is Dion from DG Construction based in Horsham , West Sussex. I am 51 years young and have worked in various building sectors over the years. As a fully qualified bricklayer this has led me to all styles of laying….. I.e brick , block , stone , flint , etc including all styles of pointing and re-pointing to suit. Also as a fully qualified tarmac layer this has led me to the laying of all materials….I.e all tarmacs , concrete , block paver , slabs , porcelain , resin etc. I have been a supervisor in all of the above and pride myself on the quality and professionalism of the works delivered and understand the importance of good customer/client relations as I do with the health & safety to all concerned on the project domestic or commercial.
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Mills Electrical
New on MyBuilder
Extension Builder in Crawley, South East England
Mills Electrical is a trusted electrical company based in East Grinstead, serving domestic and commercial customers across the South East. We offer a full range of electrical services including EICR testing, fault finding, rewires, consumer unit upgrades, lighting installations, EV car chargers, and renewable energy solutions. Fully qualified and insured, we provide friendly, reliable and professional workmanship on every job. We also offer a 24/7 emergency callout service for when you need urgent electrical support. Free estimates available. Contact Mills Electrical today for safe, efficient and dependable electrical services you can rely on.
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Blackthorn developments ltd
No reviews yet
Extension Builder in Crawley, South East England
I am a carpenter and roofing specialist with over 20 Years experience, over the last 15 years I grew a construction company with many employees and many happy customers, but found at times that this format lost the personal touch with the client. I recently decided to bring the business to a close and start again doing the smaller projects with direct contact which each customer, to enable me to provide a consistent and tailored service to each customer with client satisfaction being the main priority. I specialise in loft conversions, small extensions, all aspects of carpentry, garden buildings, decking, roofing, insulation, tacking and project management. I also have a large contact list of all trades so can manage all parts of any project, however I generally look for projects with enough works suitable for me to complete personally so I can be present and working on the project from start to finish.
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AG south construction
Rating: 5 out of 5
Extension Builder in Crawley, South East England
I'm qualified bricklayer with 20 year's experience, I'm doing refurbishements and new houses work from start to finishing off in very high standard.
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Latest review:
Extensions- 13 May 2026
Agim completed a ground floor extension for me in 2025 and I would not hesitate to recommend him for similar work. The quality of the work was excellent and the team worked tirelessly for months to ensure it was completed on time and for a reasonable price. Agim was able to adapt quickly when any unforeseen problems occurred, always clearly communicating possible solutions to help keep the project moving. Having people in your home can be difficult but Agim is very respectful and considerate, making sure to put our needs first. The results are fantastic and Agim continues to help snag any minor issues that come up. I couldn’t be happier with how things went, testament to his professionalism. Thanks Agim for all your help on this project.
R&T Carpentry & Construction
Rating: 5 out of 5
Extension Builder in Crawley, South East England
Ryan - I am a very hard working individual and always provide a pleasant service. I have over 13 years experience in the fields i cover. I am fully insured. We cover a very wide range of works including, loft conversions, extensions, garage conversions, Media walls, custom garden studios, Roofing, porches, carpentry, painting and decorating and some plumbing and electrical works. We always welcome new customers and will be happy to quote any work you require, however big or small. Thank you.
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Latest review:
Conversions - General- 11 Feb 2022
Basic one day job but Ryan was reliable. Quoted within a few days and Job completed within a couple of weeks No problems at all.
Patrick Taylor
Rating: 5 out of 5
Extension Builder in Crawley, South East England
We offer a fully comprehensive service from planning and designing to innovating and building. We can help in all aspects of residential projects from fixing a leaking tap to extensions and new builds. A full portfolio and customer references are available upon request.
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Latest review:
Kitchen Fitting- 31 Jul 2019
Can't recommend this guy enough! Pat is a professional from start to finish. He came to quote me for a complete kitchen refit, within a few days he had emailed me a detailed quote and we agreed a date. My kitchen came with many unforeseen problems and challenges but Pat rose to them all. Aside from being a skilled carpenter and a skilled builder he is a great problem solver. He is reliable,trustworthy and very approachable. When I was getting stressed out he would calm me down and reassure me that everything would be ok. Sounds silly but my kitchen issues would have stressed a saint out! To summarise, my kitchen has turned out beautiful! Pat has done the work to a very high spec and gave it the wow factor! I absolutely love my new kitchen and am so happy that I chose Pat to come and do it for me. Look no further!!! Hope he posts my before and after pics on here and you can see for yourselves!
Yudsons Ltd
New on MyBuilder
Extension Builder in Crawley, South East England
Reliable, experienced construction company delivering quality workmanship across all aspects of building, renovation and property improvement. We take pride in completing every project to a high standard, on time and within budget. From small repairs to larger construction projects, we’re committed to providing a professional and dependable service.
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Hennessey Maintenance Ltd
Rating: 5 out of 5
Extension Builder in Crawley, South East England
"Welcome to Hennessey Services – your trusted partner in building and roofing solutions. With a commitment to quality craftsmanship and unparalleled customer service, we deliver reliable, durable, and expertly executed projects. Whether it's residential or commercial, repairs or new installations, our experienced team ensures your property is in safe hands from foundation to rooftop. At Hennessey Services, we build more than structures – we build trust."
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Latest review:
Works such as roofing, fencing, plumbing and internal repairs were carried out efficiently with the project manager keeping me informed regularly as I live some distance away.
AtoZrefurbspecialists
No reviews yet
Extension Builder in Crawley, South East England
Construction and project mangement , builder, we have a number of vans and staff, we take on both domestic and commercial extensions , roofing , refurbishments , kitchens , bathroom. have been working around the south east for over a decade
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Building and refurbishment's
No reviews yet
Extension Builder in Crawley, South East England
If your property needs a facelift, Renovations Group has a team of home and business remodeling experts ready to make your renovation dreams come true. Whether you’re only looking to redo your bathroom or kitchen, or have a more ambitious project in mind and want to extend your house or to remodel a whole property, we’re your go-to team.
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Jed Contractors ltd
No reviews yet
Extension Builder in Crawley, South East England
Loft conversion, extensions , refurbishment , maintenance , multitrader , flooring , kitchens, bathrooms , roofing , plumbing , heating.
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BR Baxter
Rating: 5 out of 5
Extension Builder in Crawley, South East England
H
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Latest review:
Decking- 28 Sep 2020
What a incredible service from start to finish polite always on time and made a shabby old decking come back to life and cleaned up every time he did work sometimes staying late in the evening we are so pleased we chose Bertie Baxter to fix our decking would 100 percent recommend Bertie to anyone thank you very much

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.