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Find local Extension Builders in Wales

Easily find vetted and reviewed local Extension Builders. Just post your job to get free quotes from MyBuilder's Extension Builders near you in Wales.

Extension Builders

How it works

  1. Post a job

    Post a job

    Tell us about your job, and we'll alert suitable extension builders in Wales. 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

    Review and choose

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

  • R W Langford Builders Ltd

    Extension Builder working in Wales
    Trade Member since 2016

    R W Langford Builders are a family run business that offer a friendly and reliable service and believe customer relations and satisfaction is a top priority. We can complete any building job from start to finish making it a stress free experience for our clients. All work is read more

    Latest Extensions feedback review:

    50m sq single, 7m sq dbl extension and a dbl garage

    Bob and Craig did an amazing job on our extension, garage, 3-tier patio and fences, as well as a new window, wider door way and window replacements in the existing house. We received quotes from a dozen firms, but their quote was by far the...

    By greesevans on

  • Mark Cater

    Extension Builder working in Wales
    Trade Member since 2015

    I offer a wide range of trades. Covering all areas of work. I am very hard working and offer a very competitive rate. I keep very good communication with the customer. I am reliable and always start work on time. read more

    Latest Extensions feedback review:

    Bungalow extension- family room and ensuite bedroom

    This work was needed to provide suitable accomodation for my disabled father and we are all delighted with what has been achieved. Despite the many problems caused by covid 19 lockdown restrictions with problems sourcing materials, Mark...

    By katharine65840 on

  • Donald Thomas Builders

    Extension Builder working in Wales
    Trade Member since 2013

    Hi, my name is Donald of Donald Thomas Builders. With over 25 yrs experience in the building trade and many contracts behind me, I have a good understanding of what clients require and I'm always happy to give my input and expertise to a project. read more

    Latest Extensions feedback review:

    Builder required for extension

    We had 'Donald Thomas Builders' to build our extension. We were quite nervous about the process as it is a lot of money and you hear such horror stories. We needn't have worried. Donald approached the quotation process and the build in a...

    By anon-230111040004879758 on

  • S.H.PHILLIPS BUILDING CONTRACTOR

    Extension Builder working in Wales
    Trade Member since 2012

    We are a well established family business trading for 30 plus years offering all aspects of building works with friendly and professional service. No job too small free estimates and quotations with no obligation. read more

    Latest Extensions client reference:

    Steve undertook the conversion of a 50 x 20 foot stable block annexe on my Grade 2 listed former coach house to create an enlarged domestic dwelling. The old roof was removed back to below the wall plate, a new roof was cut to alignment and...

    Reference taken by MyBuilder on

  • C J Nowell Construction

    Extension Builder working in Wales
    Trade Member since 2019

    We are a family run construction company with over 15 years experience. We are highly experienced in all aspects of the building trade, from groundworks to plastering, painting and decorating, we have it covered. read more

    Latest Extensions feedback review:

    Single storey extension

    Excellent workers, polite, informed and punctual, great job, will definitely use them again, patio looks amazing! Great price too!

    By mick57681 on

  • Powys Builders Limited

    Extension Builder working in Wales
    Trade Member since 2015

    We are a family run business with over 30 years experience in all aspects of building work. We can provide references and have numerous testimonials from previous clients. We employ fully qualified tradesmen for all sorts of jobs no matter how small or large, we are very read more

    Latest Bricklaying feedback review:

    wall around pound

    work was done well. would recmend them to others looking got jobs done

    By anon-211128010004439264 on

  • T.W.Carpentry & Building

    Extension Builder working in Wales
    Trade Member since 2016

    I run a well established and VAT registered Carpentry & Building business with over 15 years experience. I have an experienced qualified team of tradesmen who are more then capable of carrying out all types of building work. All of my work is completed to the highest read more

    Latest Carpentry feedback review:

    Plaster board installation

    Tom’s boys worked with us initially plaster boarding the entire house and garage. Based on this experience, we kept Tom’s team on for the rest of our self-build project. They performed first and second fix carpentry throughout the whole...

    By the_old_grazing on

  • Bowen Building

    Extension Builder working in Wales
    Trade Member since 2015

    I am a professional tradesman and have over 30 years experience. I have a team of men who are here to do the best component work at all our customers houses as we would at our own homes. read more

    Latest Restoration & Refurbishment feedback review:

    Restore brick hearth behind cooker and install hood

    The team at Bowen were fantastic. Efficient, polite, careful, and straight-forward. I'd hire them again on any job. And the end results were really fantastic - they talked with us at each step to ensure that work was done to a standard and...

    By jeremy57370 on

  • S C J CONSTRUCTION

    Extension Builder working in Wales
    Trade Member since 2008

    WE ALSO HIRE OUT TOOLS AND PLANT E.G DIGGERS, DUMPERS AND TIPPERS read more

    Latest Bricklaying feedback review:

    Repair old stone garden wall

    Reasonable quote provided quickly ,work done to a high standard and tidied up after themselves .Would definitely recommend and use again .

    By marie10423 on

  • S.S Carpentry and General Building

    Extension Builder working in Wales
    Trade Member since 2019

    Hello we are a construction company where no job is to big or too small. We we do all aspects building from new build to extension too renovation. Kitchen fitting bathroom fitting. Are fully qualified team will get the job done to a high standard. read more

  • castell estate maintenance

    Extension Builder working in Wales
    Trade Member since 2013

    A family run firm built on reputation, we pride ourselves on customer care, so you can be sure of the highest standards. We specialize in barn conversions and period restoration,our trades men are fully qualified and happy to help. We design and build beautiful landscaping read more

    Latest Roofing (Flat) feedback review:

    Flat Roof.

    Terry did a great job replacing the flat roof over my parents garage, even taking into account the very challenging weather. Good, open communication from start to finish and the most important element, keeping perfectly to his promises....

    By jonnyboy_16 on

  • MS Build Southern

    Extension Builder working in Wales
    Trade Member since 2020

    We are a dedicated team with more than 30 years experience in the building trade . Our expertise covers all aspects of building projects including extensions , loft conversions, kitchens, bathrooms , roofing ,renovations and refurbishments . We treat all our clients with the read more

    Latest Roofing (Pitched) feedback review:

    Purlins support needed!

    The assessment of the work needed for the roof was comprehensive and fulfilled the structural survey repair needs fully. The work was completed to an excellent standard, tidy in progress and cleared up well at the completion. All the work...

    By kafff17 on

  • Barcud Coch Ltd

    Extension Builder working in Wales
    Trade Member since 2022

    Barcud Coch Ltd carry out extensions, new builds, barn conversions and renovations in Ceredigion & North Carmarthenshire. read more

  • D & M Jones Developers

    Extension Builder working in Wales
    Trade Member since 2017

    D & M Jones is a building company that helps you with all aspects of constructions. Our aim is to be recognised as one of the best building firms in the area. To ensure this we take our quality of work and customer service very seriously.Our team is skilled and delivers work read more

    Latest Groundwork & Foundations feedback review:

    Extension of existing foundation

    Absolutely professionally done. That is the right company that we were looking for - correct, in a good price and friendly staff. We recommend it!

    By telelink_uk on

  • RM Builders

    Extension Builder working in Wales
    Trade Member since 2017

    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 read more

    Latest Bricklaying feedback review:

    New wall

    Great job no fuss very clean removed all rubbish will use again

    By tim_vt4 on

  • Mike Guest Electrical Plumbing Building

    Extension Builder working in Wales
    Trade Member since 2019

    Electrical work 18th edition registered Contractor All plumbing work Extensions building repairs and renovations New builds My own architect Roofing and painting read more

    Latest Electrical feedback review:

    Smoke alarms and certificate.

    Good company, turned up on time, gave fair report , and generally left work area tidy.

    By tony37984 on

  • D.scaifeconstruction

    Extension Builder working in Wales
    Trade Member since 2020

    Hello there i specialise in renovations, extentions, stone walls, bricklaying, patios and all aspects ground works. read more

    Latest Groundwork & Foundations feedback review:

    Greenhouse

    Job about to start all looks very positive for a great job

    By david56146 on

  • David Holmes

    Extension Builder working in Wales
    Trade Member since 2016

    We are a small construction business based in west Wales. Our staff have been in the construction industry for over 30 years covering various trades from bricklaying, plastering, carpentry, groundworks and roofing. We undertake all works including new builds, extensions, read more

    Latest Bricklaying client reference:

    David has worked for us as a bricklayer and ground work specialist on various residential projects for over twenty years, and we have found him to be a conscientious and reliable builder with a very high standard of workmanship. David is a...

    Reference taken by MyBuilder on

  • J J Construction

    Extension Builder working in Wales
    Trade Member since 2018

    Sole trader construction business working on my own or with 1-3 employees, with 25 years of building experience in all forms of construction. Renovations, extensions, house remodelling and all forms of domestic building projects. In the past I have worked as foreman for read more

    Latest Bricklaying feedback review:

    Block extension shell

    Jay has now carried out numerous big projects for me. He is now just completing a large and quite complex extension to my house. The standard of his work is fantastic with great skill and attention to detail it certainly is looking very...

    By philip70520 on

  • LA brickwork

    Extension Builder working in Wales
    Trade Member since 2020

    Hello there, I’m Luke from LA brickwork,I have worked all around wales and England building anything from garden walls to extensions to schools to retirement homes.All brickwork and masonry undertaken. Anything from garden walls to new builds. Thank you feel free to get in read more

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

98%

Extension Builders working in Wales have an average review score of 98% positive based on 3,589 homeowner reviews.

Trusted by experts

Mumsnet rated 2019

Don’t just take our word for it, homeowners love MyBuilder too. We’re proud to be rated by Mumsnet.

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