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    Tell us about your job, and we'll alert suitable extension builders in Castle Cary. It’s simple and free.

  2. Hire a tradesperson

    Tradespeople respond

    Once your job is posted, you'll get responses from interested extension builders through the website.

  3. Leave feedback

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    Browse profiles, work history, and feedback, then choose who you wish to share your details with.

  • M.T.S Builders

    Extension Builder working in Castle Cary
    Trade Member since 2009

    MTS Builders Limited is an established and competitive building and construction company based in Wiltshire. Our portfolio includes the construction of extensions and alterations for domestic premises for various clients and architects throughout Wiltshire and Somerset. read more

    Latest Extensions feedback review:

    Attic conversion or side extension

    Our side extension on our 1930's house has just started in the last few weeks and we couldn't be happier. Martin is fantastic at managing all aspects of the project and so organized, he goes above and beyond. His team are professional and...

    By sarah84084 on

  • Snelling carpentry

    Extension Builder working in Castle Cary
    Trade Member since 2018

    We do a Wide range of work from laying floors to building extensions and loft conversions. On the firm we have two carpenters and an apprentice, we also have a network of trades that we sub contract in from plasterers to plumbers so we can cover everything. We have also read more

    Latest Extensions feedback review:

    Sunroom

    Excellent all round. Highly skilled, did a superb job of building a sunroom extension. Despite winter weather did all he could to minimise garden damage and kept site neat and tidy. Would recommend him without reservation. Equally, the...

    By user_25pr on

  • LJB Carpentry and Building Services

    Extension Builder working in Castle Cary
    Trade Member since 2014

    Hi, the services I can provide are experience in large and small projects from hanging doors to building roofs and extensions. I have 20 years of experience to fall back on, so I think I offer a wealth of experience to any patential customer and a high standard of read more

    Latest Windows & Doors (Wooden) feedback review:

    Replace a Wooden Door on an outbuilding to cottage

    I was very happy with the quote and the quality of the work which Lee carried out for me at short notice. He was friendly and kept me informed throughout with phone calls and texts.

    By phil19963 on

  • CC Brickworks

    Extension Builder working in Castle Cary
    Trade Member since 2016

    Welcome to CC Brickworks, where vision, quality, and pride are at the forefront of every project we undertake. Bringing vision to life with unparalleled craftsmanship and the use of top-quality materials. We believe in transparency and open communication though the read more

    Latest Joinery & Cabinet Making feedback review:

    New kitchen storage cupboard

    Chris and Brett did an excellent job. Efficient and tidy. Nothing was too much trouble. Will definitely be using them again! Thanks!

    By lyndsayp on

  • SM Building and Landscaping

    Extension Builder working in Castle Cary
    Trade Member since 2013

    Sm building and landscaping. all aspects of the trades covered from new builds to extensions roofing and groundworks. We also have extensive experience in property maintenance. Fully insured and client references available. read more

    Latest Bricklaying feedback review:

    Garden wall/flower beds and steps

    Excellent work, great result. Arrived on time each day and produced my vision. Will be using Sam again. Many thanks.

    By ken_in_ba3 on

  • SDS Building Services

    Extension Builder working in Castle Cary
    Trade Member since 2020

    I run a general building company as a sole trader, take on anything from Garden walls to house builds, ive had over 20 years experience in all building trades like Brickwork, stone work, patios, block paving, timber work and plastering. read more

    Latest Extensions feedback review:

    Small studio/gym

    I would highly recommend Shane. Before he started we discussed what I wanted, he made suggestions and we agreed on the build. He turns up when he says he will and he kept in contact with me, regarding things like length of time door...

    By dawn2018 on

  • JST Builders

    Extension Builder working in Castle Cary
    Trade Member since 2016

    Hi! My name is Justin I'm the owner of JST BUILDERS I have worked in the building trade for over 20 years, and in that time i have experience from the ground right up to the roof and all in between. We offer a high level of service, if you shortlist me i will call you asap read more

    Latest Roofing (Pitched) feedback review:

    Some slates on roof need replacing/adding

    Justin was very polite, friendly and professional. I was very pleased with his work and would have no hesitation in recommending him to others and would definitelyuse him again.

    By barbara_259 on

  • AMC Groundworks and Building

    Extension Builder working in Castle Cary
    Trade Member since 2020

    Established in 2017, we can offer all types of works to a very high standard from small garden walls to full extensions. We can provide a full service from digging foundations all the way through to skimming your extension. read more

    Latest Groundwork & Foundations feedback review:

    Foundations for garage

    AMC were brilliant! Highly recommend. The job was done in what felt like no time at all. Very pleased with the finish. They were tidy and left the site clean and clear of any rubbish. Even the neighbour commented on how tidy they were.

    By richard96464 on

  • The West Country Home Company Ltd

    Extension Builder working in Castle Cary
    Trade Member since 2017

    Established in 2016, we are a family run business based in the Mendips. We specialise in extensions and renovations. Our experience extends from extensions to a plastered finish to complete whole house renovations. Our company is unique in that we offer a complete package of read more

    Latest Extensions feedback review:

    Single story extension. Full rear of property.

    I have been fortunate enough to have selected the absolute best building contractor for my extension!! The West Country Home Company Ltd. are a fantastic group. Professional, highly experienced and simply a great team. My extension was...

    By ian46205_63 on

  • N G Barham Building Services Ltd

    Extension Builder working in Castle Cary
    Trade Member since 2013

    Since working as a self employed builder and now as a ltd company I have completed a wide variety of projects from garden wall construction to complete new builds and modern extensions. Recent projects have included renovations of grade II listed buildings using traditional read more

    Latest Repointing feedback review:

    Repointing

    Excellent all round. Quick to respond. Great quality of work. Good to communicate with.

    By joanna25940 on

  • Baxter Construction (SW) Ltd

    Extension Builder working in Castle Cary
    Trade Member since 2017

    Baxter Construction (SW) Ltd specialise in bespoke construction projects covering Somerset and the South West. We are a professional and approachable construction team aiming to deliver expert craftsmanship to the highest standard. read more

    Latest Architecture feedback review:

    Putting a new doorway into a load bearing wall

    I cannot recommend Rob enough.. He replied within 2-hours of my query. He's Efficient, tidy, helpful, polite & highly skilled. I have already recommended him to to friends of mine. Brilliant job I'm thrilled thank you for arriving on...

    By fliss44008 on

  • Ian Whiteley Carpentry & Construction

    Extension Builder working in Castle Cary
    Trade Member since 2017

    Carpenter Joiner, 30+ years experience in the building trade. Covering all aspects of building work. Extensions, kitchens, bathrooms, first fix Carpentry, 2nd fix Carpentry. Landscaping, decking. Easier to just ask. All work covered by up to date Builders Liability read more

    Latest Kitchen Fitting feedback review:

    Install new units and worktop in utility room

    Quick reasonable quote. Was lucky Ian had a gap in his diary. Ian Turned up promptly, carried out a clean tidy job. Would recommend, Ian will be doing more work here in the future.

    By bailey_79 on

  • Insideout Building

    Extension Builder working in Castle Cary
    Trade Member since 2013

    Insideout Building is a well-established company working in Dorset and the surrounding area. Having completed many successful projects, we have the experience and the expertise needed for the construction or renovation project that you have in mind. Firstly we will arrange read more

    Latest Joinery & Cabinet Making feedback review:

    Replace countertops with wood and install 1 cabinet

    Richard did a great job installing wooden kitchen countertops and making a new cupboard. He was polite, punctual and completed the job to a very good standard.

    By joan_coy on

  • Buckland Builders

    Extension Builder working in Castle Cary
    Trade Member since 2019

    I am a family run building business with 30 years building experience. I specialise in extensions, renovations, loft conversions, roofing, new builds and barn conversions. We normally complete the whole process from footings right through to completion with the exception read more

    Latest Roofing (Pitched) feedback review:

    Tile repair

    Just wanted to thank Phil for a fantastic job! Not only did he efficiently and quickly fix our roof he was has given us some great insight on how we can fix other problems within our house. He is full of knowledge and very approachable. We...

    By craig84332 on

  • Thomas Burns Plastering Services

    Extension Builder working in Castle Cary
    Trade Member since 2012

    Hello, my name is Tom Burns. I have been plastering for 11 years and now call Keynsham my home. I specialise in all aspects of plastering, internal and external. I also have a skilled carpenter and brick layer on my team so from a small patch repair to new build project I read more

    Latest Plastering feedback review:

    Full skim 2 bed flat

    Fantastic! Thank you for your professional work and attitude

    By ryan_860 on

  • M.G.K Carpentry and construction

    Extension Builder working in Castle Cary
    Trade Member since 2019

    Mgk carpentry and construction is a small family run business in Frome Somerset and have been trading since 2002. We are a member of the guild of master craftsman. We undertake all carpentry and building work from fitting a single door to building an extension. Fitting a read more

    Latest Bathroom Fitting feedback review:

    Full bathroom refurbishment

    We are very pleased with the work carried out by Mike and his team. They did an excellent job and the finish is of a high standard. We found Mike helpful in making suggestions as the bathroom was constructed ensuring it was practical and...

    By catherine74744 on

  • Ark Building Contractors Limited

    Extension Builder working in Castle Cary
    Trade Member since 2008

    We believe in our company mantra of 'Quality / Integrity / Service'. More than 25 years experience in the trade. Registration number 5037420. Only highly experienced tradesmen used. Lots of photos and references available on request. read more

    Latest Plastering feedback review:

    Plastering part of ceiling caused by water damage,

    I had plastering and building jobs done by Lee and Tony. They were very punctual, communicated really well and did a very good job and I wouldn’t hesitate to recommend them or hire them again.

    By kirsty_132 on

  • Nadder Valley Carpentry ltd

    Extension Builder working in Castle Cary
    Trade Member since 2022

    Carpentry and general building company based in Shaftesbury with Over 25 years experience with all fully qualified tradesmen. read more

    Latest Extensions client reference:

    Our project was to build a kitchen extension at the gable end of our property and an Oak timber frame veranda on the side elevation. Our Building Inspector said that it it was the best carpentry work that he had seen in a very long time....

    Reference taken by MyBuilder on

  • T George Ltd

    Extension Builder working in Castle Cary
    Trade Member since 2014

    T George LTD Building & Restoration We undertake all kinds of building work including Extensions, Renovations & Structural alterations. Mainly working on Period & Listed buildings. read more

    Latest Extensions feedback review:

    New storm porch, half brick wall, oak joinery.

    Tom presented a very reasonable but competitive quote and we hired him to build a storm porch (half stone, with oak joinery) for the front of our house. We are delighted with the outcome of the work, which is constructed to a very high...

    By ian65728 on

  • Telos Architecture

    Extension Builder working in Castle Cary
    Trade Member since 2021

    Telos Architecture is a young and dynamic CIAT Chartered Practice offering architectural services from project conception to completion and handover across the South West. With experience working on projects from small extensions though to multi-dwelling developments, read more

    Latest Extensions feedback review:

    Two story extension replacing old garage

    Very timely and efficient and helpful throughout. Would happily recommend.

    By laura90245 on

What can extension builders do?

MyBuilder is the simplest way to find a reviewed and vetted extension in your local area. We can connect you with local extension builders near you, so you can choose the ideal tradesperson for your project with confidence.

Whether your plans are big or small, we can help you find a skilled extension builder to support you with your job. Your contact details are only shared with tradespeople you want to speak to, so you can check out their credentials, read honest customer reviews and get free quotes to compare.

There are lots of jobs that extension builders can help with, including:

  • Extending your home with an extra room
  • Two+ storey extensions
  • Adding partition walls to create more rooms
  • Building annexes or external structures

Top Extension Builder Reviews

99%

Extension Builders working near Castle Cary in Somerset have an average review score of 99% positive based on 911 homeowner reviews.

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