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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GMB Building
Rating: 4.5 out of 5
I'm Garry, a general builder. Skills include extensions, refurbs,carpentry,fencing, plastering, window fitting, kitchen, bedroom & bathroom fitting. I've experience in house renovations and extensions. I work off plan or can help with design & options available which may not have been considered.
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Latest review:
Extensions- 7 Apr 2020
Only went for the construction of a porch....attention to detail was lacking plus some minor leaks during the wet and windy weather
Jarvis developers ltd
Rating: 5 out of 5
An established building company with a wealth of building knowledge. As an excellent builder and member of the federation of master builders we can help our clients navigate the whole design and build process. Building a new house, converting a property, and extending a property we can make that happen . If you need help submitting a planning application we can also help you with that along with your initial design ideas and turning those ideas into working building regulations drawings.
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Latest review:
From start to finish, Paul and the team were superb; we are so happy with the finished product and the workmanship is brilliant. In particular, Paul was always available on the phone and the communication throughout the build was great. The guys on site were always polite and tided up everyday which was good as we have small children. We would thoroughly recommend Paul and his services again
Prolinq Ltd
Rating: 5 out of 5
Clinical Waste Management
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Latest review:
Plumbing- 4 Oct 2021
Excellent service!! Good communication. quick and effective!
D.Robson Construction Service’s
Rating: 5 out of 5
I am a qualified bricklayer, with experience in stonework, brick/blockwork, fencing, landscaping, plumbing, tiling, plastering, dry lining etc. I can undertake all aspects of building work, and with an expansive knowledge, can give advice freely to anyone in need.
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Latest review:
Dan has recently completed the brickwork on our new driveway. Absolutely dedicated from the start - the result is better than we imagined. He is a reliable tradesman who put weekend after weekend to get our project done. Everyone who has visited during and since have commented on the quality of the work. Would happily use Dan again and no doubt will do in the future.
RJ Gilbey Ltd
Rating: 5 out of 5
I've been in the construction trade for over 30 years and specialise in extensions, conversions and renovations. I offer a detailed itemised quote, so you know what is included.
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Latest review:
Bricklaying- 13 Jun 2020
From beginning to end, totally professional, prompt and polite, not the cheapest quote, but very Competitive, and worth every penny! Both gentlemen were polite diligent and extremely competent. The work was carried out to a high standard and the site left clean and tidy afterwards. Highly recommended. Jennie H. Dover
Leo construction
Rating: 5 out of 5
Hi my names Leo I'm a bricklayer by trade but undertake all types of building work from garden walls to alterations ,extensions slab laying roof repairs and many other maintenance and building tasks
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Latest review:
Bricklaying- 25 Sep 2022
We have been very happy with Leo. He came over to quote within days of us posting our job, he was then very helpful on what we needed to action in order for him to build our retaining wall. Leo came round to help place pegs in order for us to have concrete poured correctly. He then came and built our retaining wall to a perfect standard with incredible speed. Leo has been a pleasure to deal with from start to finish and we couldn't recommend him enough. We have future projects in mind and will be looking to hire Leo for them.
G6 Studio Limited
Rating: 4.5 out of 5
We are a design & build company that specialises in designing and building your ideas to life. What makes us different from the rest is our eye for detail, because we understand design, our building work is practical, stylish and gives the client exactly what they are looking for. There is no need to bring in multiple expertise anymore when you can come with us and get the full package, all in house, all in one place.
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Latest review:
Carpentry- 26 Dec 2025
Joints were not the best didnt come back to finish
BCG Engineering Contractors Ltd
Rating: 5 out of 5
BCG Engineering Contractors, Construction specialists carrying out bespoke/luxury new build projects for residential properties. We now also manufacture, supply & fit Kitchens that suit your needs. Our main aim is to fulfil our clients needs and work with them to understand and complete the work that lies ahead of us. We offer only the best work from ourselves and our amazing employees and we are sure to provide a service that leaves customers in a happy, secure and safe environment.
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Latest review:
Plastering- 7 Dec 2021
After a very long refurbishment and extension, where I've been continually let down, lied to and generally messed around by various tradesmen, Cori and Aman have restored my faith. They've been a breath of fresh air. Cori is possibly the politest tradesmen I've come across and certainly the tidiest plasterer I've dealt with. The room was tidied and swept up after each day whilst the finish on the skim is first class. I'd have zero hesitation recommending Aman and Cori. They've been brilliant. Thanks lads!
Build & Renew ltd
Rating: 5 out of 5
Essex based construction company - Specialising in all aspects of Building & Refurbishment to the highest of standards.
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Latest review:
Construction of a huge outbuilding. Including cinema room, bar, hot tub area. Plus full landscape of the outdoor space. The job has been featured on estate agents websites. Reliability 100%. Quality of work also 100%.
On Point Joinery & Building Ltd
Rating: 5 out of 5
We undertake all aspects of Joinery and Building Works to the highest possible standard, We are a reliable local company where quality matters.
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Latest review:
Loft Conversion- 13 Oct 2018
So happy with on point for our porch & loft conversion. Very professional service from start to finish with excellent communication throughout the build. All workmen were well mannered & tidied up after themselves everyday which was such a relief since I have a newborn & 2 year old. All work completed within timescale & on budget. Would definitely recommend.
mjlconstructionmanagement Ltd
Rating: 5 out of 5
I am a fully qualified time served carpenter and joiner. My business covers all aspects of carpentry and joinery and all Building works, from home extensions roofing, kitchen and bathroom fitting bespoke stairs, I have a small team of skilled personnel working with me including plumbing, electrical and bespoke metal work. Large and small plastering works now undertaken All works guaranteed, CHAS accredited.
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Latest review:
Joinery & Cabinet Making- 19 Jan 2025
Martin was such a professional, who constructed an island and fitted an oak work top. He spent time rounding the edges of the wood and then oiled the top. Nothing was too much trouble and he was a pleasure to meet. I would recommend Martin for any carpentry/joinery job in a heartbeat!! Thank you so much Martin!
Hadron LTD
Rating: 4.8 out of 5
Please contact us for all your building projects and property maintenance. We aim to please our customers and exceed their expectations. We will listen to your needs and requirements and can also advise on best course forwards.
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Latest review:
Fencing- 20 May 2017
Manny and team were fantastic. They did an excellent job, on time, and we're very helpful throughout the job.
GBM
Rating: 5 out of 5
Over 30years experience on large building sites,sub contracting to many major companies. I have been a sole trader for the last 7 years, covering new-build through to maintenance of existing. I have also developed my own conscientious and reliable team covering every trade within the industry when required.
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Latest review:
Bricklaying- 2 Dec 2017
Nice chap, decent work, good communication Will
D Bird carpentry and building LTD
Rating: 5 out of 5
Hi were Dbird Carpentry & Building we are a family run company by myself Daniel and my brother Ellis. We take pride and love what we do! We will help you every step of the way through your project no matter the size.
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Latest review:
Conversions - General- 21 Jun 2022
D Bird Carpentry completed the works on time and to a high standard. Dan and his team were a pleasure to work with and I would be happy to work with them again.
RM Builders
Rating: 5 out of 5
I have been in the building trade for over 10 years,most recently gone self employed due to the experience gained during those years.My work ranges from stones work,block/brick,slabing to the likes of general building
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Latest review:
Bricklaying- 4 Sep 2020
Thank you great job nice and tidy no fuss
MMC Mesi’s Maintenance LTD
Rating: 5 out of 5
Renovating houses extensions quarters decorating bathrooms instalment kitchen instalment
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Latest review:
Bathroom Fitting- 5 Apr 2022
A good experience, a quality job at a competitive price