Do extension builders near me need insurance?

While it isn’t a legal requirement, most builders carry public liability insurance to cover accidental damage or injury during work. Always ask to see proof of insurance before agreeing to a project.

Do local extension builders offer guarantees on their work?

Yes, many local home extension builders in your area should provide a guarantee covering their workmanship for a set period, often lasting several months to a few years depending on the project size. Always check what the guarantee covers before work begins.

What should I ask before hiring an extension builder?

Ask about previous work, project timelines, cost estimates, and payment terms. It’s also wise to discuss materials, planning permissions, and how any unforeseen issues will be handled. You can easily view examples of previous projects of extension builders near you on MyBuilder.

How much deposit should I pay for an extension project?

Deposits usually range from 10% to 20% of the total cost. Make sure the payment schedule, scope of work, and conditions are clearly written into a contract before the extension project starts.

Local Extension Builders: Find Extension Builders Near Me

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (281 reviews)

Some of our top rated extension builders

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NSH Developments Ltd.
Rating: 4.8 out of 5
We are general builders and carry out all aspects of building and renovation work, from house renovations to new builds. Our family run business is based in Diss Norfolk. With a 15+ Man strong team we have 100’s of years experience within the company.
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Latest review:
Extensions- 22 Nov 2020
In my opinion would never use NSH again. Several issues throughout the build which in the end one took court action to resolve. Site was a constant mess and found Neil's attitude rude at times. Not once did he apologise for any issues. Have done several new builds/extensions in the past and this has put myself and wife off ever doing one again.
CPC Property Services
Rating: 4.7 out of 5
A small family firm,who treat your property as if it was our own. With a full team of trusted skilled sub contractors working with us, for a complete job from start to finish , with the eye to detail that you require , large portfolio of work available.
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Latest review:
Extensions- 12 Feb 2022
Paul been very helpful in all aspects of the job highly recommend.
W S Brickwork & Building Services
Rating: 4.5 out of 5
At W S Brickwork & Building Services we understand how difficult it is to find honest reliable Tradesman. We have established ourselves by being just that and are known as one of the best in Maidenhead. With over 22 years trading we have gathered a wealth of experience and pride ourselves on providing professional, caring and high quality service and always meet our customers needs.
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Latest review:
Bricklaying- 20 Apr 2026
Very pleased with W S Brickwork & Building Services. Have had a broken wall demolished and rebuilt and neighbours have also commented on how good it looks A good service throughout.
L A Carpentry
Rating: 5 out of 5
I have been in the carpentry/building industry for 45years and very knowledgeable in all aspects of the trade. Attention to detail is important to me and I take pride in keeping my customers happy and satisfied in the work I have done. I am always punctual and reliable.
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Latest review:
Carpentry- 25 Feb 2022
Lee was really lovely to work with and very prompt to give me a reasonable quote and he got the work done really quickly. I’m very happy with the level of care he took and the quality of the workmanship. He was even good enough to do an additional handyman type household job for us whilst he was here which was very kind of him. Would definitely use him again!
MT Brickwork
Rating: 5 out of 5
I’m a fully qualified and time served Bricklayer with over 20 years experience in domestic, commercial and residential projects. As well as my time working as a bricklayer I was employed as brickwork supervisor for a large regional contractor due to my experience and expertise in all aspects of bricklaying. All of my work is done to the highest of standards along with friendly and reliable customer service and a strong work ethic
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Latest review:
Extensions- 26 Jul 2022
Very pleased with porch built by Michael Taylor. I highly recommend this service provided by pleasant hard working team.
Prime Basement Construction Ltd
Rating: 5 out of 5
Basement construction and conversion company with over 12 years experience.
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Latest review:
Groundwork & Foundations- 5 Feb 2021
Honest reliable friendly team, who go out there way ,excellent service.
R&M Property Group Ltd
Rating: 5 out of 5
R&M are a professional and experienced Civils lead contracting company that carry’s out new build and refurbishment commercial and residential works to the highest standards.
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Latest review:
Extensions- 28 Aug 2022
Double extension and the side of the property, including new roof, facia’s and gutters. After receiving a few quotes from other builders, we found R&M property group. Thom & Jon visited us to talk through the process and we were impressed by their professionalism and knowledge. We were very conscious of staying within our budget, and they quickly put our minds at ease by providing us with a full break of costs for each item of work. We agreed a date for the work to commence in the spring, and except for a couple of minor hiccups early on with the build (none of which were R&M’s fault!) the process has ran really smoothly and the communication throughout has been great including the quality of work. We’ve also had lots of neighbours comment on the work and they have told us they’d definitely consider using R&M in the future based on what they’ve seen.
Lignum artis
Rating: 5 out of 5
A bespoke carpentry and construction company covering Milton Keynes and surrounding areas. Whether you are after a big home project, commercial work or small repairs we have a number of experienced improvement professionals meaning you don’t have to employ a range of separate tradesman to get the job done. With over 12 years of experience we pride ourselves on the quality of our work while offering cost effective solutions to bring a unique, stylish and functional change to your living space.
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Latest review:
Fencing- 9 Mar 2022
I would 100% recommend Charles. He came over to quote the job and was on time, we agreed a price and he ordered in the materials for me and had them delivered to my house. The job was completed promptly and to a great standard. I am very satisfied with the work and will be using Charles for any future jobs I need doing.
D.Hunt Building Services Ltd
Rating: 5 out of 5
Hi, my name is Dan Hunt, and I run D.Hunt Building Services Ltd. We serve as a leading contractor in Winchester and surrounding areas. We’re a team of fully qualified professionals who tackle everything from large building projects to small complex extensions and everything in between.
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Latest review:
worked to sheduale and on time
Property Refurb Builders ltd
Rating: 5 out of 5
From renovations,newbuilds,extensions. Commercial and domestic contracts
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Latest review:
Full rebuild of an existing Victorian property with substantial extensions plus landscaping. Andrew undertook the project professionally and he and his team were a pleasure to work with. Andrew was diligent, proactive and concerned that all areas of the build were completed to our expectations however challenging the circumstances.
James brickwork and roofing nvq qualified
Rating: 5 out of 5
I'm an experienced roof tiler for 13 years family trade, before I left school on school holidays I would be with the family roofing know the trade very well. Brickwork nvq level 2 quilifed Experience in all aspects of bricklaying roof tiling garden work fencing guttering and more
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Latest review:
Bricklaying- 19 Mar 2022
James rebuilt our outbuilding walls to a high standard. Very efficient, informative, and goes the extra mile. Would highly recommend.
J&k carpentry
Rating: 4.7 out of 5
We are a new high quality building business where we undertake all types of work. Eg all carpentry work, fencing, decking, cladding, flooring and much more. We provide Great work with great service.
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Latest review:
Carpentry- 22 Dec 2021
J&K did a great job under difficulty circumstances. Will hire again.
Ryder Property Improvements
Rating: 4.8 out of 5
At Ryder Property Improvements we offer a highly professional service covering all aspects of carpentry & joinery, building work,property renovations and maintenance.
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Latest review:
Extensions- 21 Mar 2024
Good job, fair price and good communication. All in all satisfied with the job 😊
Coste + Beno
Rating: 5 out of 5
Coste + Beno is an experienced construction business with a strong residential background. We pride ourselves on balancing architectural ingenuity with fine craftsmanship, to offer specialist services to discerning clients in the premium residential sphere. Our bespoke approach has seen us creating bijoux bathrooms in Shoreditch to managing full-scale renovations on listed residences in Primrose Hill. We are looking forward working with you. Best, Coste + Beno
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Latest review:
Architecture- 27 Nov 2017
I contacted Marius because he had good reviews and wanted someone reliable and capable so design a single story extension with large external and internal bifold doors. I wasn’t disappointed - Marius has been excellent throughout the whole design process and produced drawings to a high standard which met our requirements. Marius was an excellent communicator and always available to give advice when required. Further more, he went out of his way to contact local authorities regarding any questions I had at no extra cost to clarify any uncertainties. I would highly recommend his architectural services - he was good value and very professional.
Volodymyr Girkovskyi
Rating: 4.7 out of 5
I am responsible, I do my job carefully, I have extensive experience in building and renovating houses.
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Latest review:
Handyman- 9 Oct 2025
Good job, done as agreed
Building Invision Ltd
Rating: 5 out of 5
We are #1 Trusted and professional construction service. We bring first class results, with many years of experience. We excel in delivering both residential and commercial construction projects to our clients, in a friendly and professional manner.
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Latest review:
Extensions- 24 Apr 2022
Cannot speak more highly of this company. Pete and Brandon are extremely professional , helpful and friendly. Each aspect of the kitchen extension has been discussed and advice given. Their work is immaculate, professionally finished and looks amazing. They both work tiredsly to ensure the work is done to the required specification and to the customers satisfaction. I cannot recommend them highly enough. They are a company I would definitely recommend highly and would use again. Thank you so much both in making my kitchen dream come true. Best wishes for your future 😊