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  1. Post a job

    Post a job

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

  • Springate Building Company

    Extension Builder working in Dorset
    Trade Member since 2019

    Springate Building Company Limited was established in 2013. We cover all areas of building works specialising in extensions, loft and garage conversions. We pride ourselves on providing an honest, friendly and professional service, whilst producing high quality workmanship read more

    Latest Extensions feedback review:

    Double storey extension

    I can't recommend Springate Building Company enough, Dan and Billy totally transformed my home. They were friendly and professional from start to finish, providing a fully inclusive quotation prior to the works. They discussed the plans...

    By ms63056 on

  • Allen Building & Landscaping

    Extension Builder working in Dorset
    Trade Member since 2015

    Fully insured, experienced builders operating in the local area. No job is too big or small. Our main aim is to make sure that as the client you are happy and the job is completed cleanly, to the highest possible standard and at a time convenient to you. read more

    Latest Landscaping feedback review:

    Lay already prepped area to large patio and add fence

    The complete job has been handled with total professionalism. Quote was really accurate and the finish is amazing. We’ve been left with a fantastic patio and steps, garden area all tidy and we are thrilled with the whole project. Steve...

    By helen27031 on

  • CC Brickworks

    Extension Builder working in Dorset
    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 Restoration & Refurbishment feedback review:

    Create Window Hole & Fit New Window

    Happy with Chris' work, he communicated well from start to finish. End result is exactly what we wanted. Would recommend CC Brickworks.

    By lorraine22367 on

  • White And I Construction

    Extension Builder working in Dorset
    Trade Member since 2022

    We are a close nit construction company that focus on extensions and renovations. 50 years experience between us we enjoy what we do and like to deliver our work on time and with high standards. read more

    Latest Extensions feedback review:

    Back Door to Garage Link Extension

    White and I construction have just completed a side extension and garage conversion for us. Their workmanship is of absolute top quality, their communication is excellent , the value for money was great overall they are the most pleasent...

    By dan46327 on

  • Hartwell Projects Ltd

    Extension Builder working in Dorset
    Trade Member since 2019

    Welcome to Hartwell Projects ltd With the benefit of 25years experience in the building industry you can rely on us to get it right , we do aim to be competitive without compromise & responsive without delay ! So if your looking for a polite & courteous Service - then read more

    Latest Extensions feedback review:

    Single story back extension and garage conversion

    Hartwell Projects came in to complete our extension. Right from the quoting process Jonathan was polite, timely and very knowledgeable. As our first building experience we knew very little about what needed to happen - Jonathan was patient,...

    By joshd_39 on

  • Robby Branson Ltd

    Extension Builder working in Dorset
    Trade Member since 2019

    I undertake General Building, from conservatories, inc. re-roofs or warm roof upgrades, extensions & refurbs. My own experience is a lifetime of working in construction in many countries besides the UK. I have built homes & extensions in Florida, Dubai, many Caribbean read more

    Latest Conservatories feedback review:

    Conservatory box gutter leak, and slipped roof panel.

    Robby was brilliant, he travelled a long way to help me out. He has given me useful advice about problems which exist and might need to be resolved in the future. I would not hesitate to ask him back again. Thank you Robby.

    By ginny54000 on

  • Building Additions

    Extension Builder working in Dorset
    Trade Member since 2009

    Building additions are a local business based in Poole. We specialise in extensions, loft conversions, internal alterations and garage conversions. We have many happy customers who will provide local references. A detailed written quote and a fixed price given. At Building read more

    Latest Conversions - General feedback review:

    Convert garage into En-suite Guest Room

    Professional from start to finish and helpful in making decisions together , tidy and punctual and I would definitely recommend Building Additions for any building work.

    By hall123 on

  • GMB Building

    Extension Builder working in Dorset
    Trade Member since 2013

    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 read more

    Latest Restoration & Refurbishment feedback review:

    Rear single storey conversion detached 1930's house

    I hate to cast doubt on the positive feedback others have offered, but I have had a terrible experience culminating in Garry taking his tools and leaving me with broken velux windows that leak, a roof that needs to be tiled correctly and...

    By tracey115 on

  • Chris Dunkel Bricklayer General Builder

    Extension Builder working in Dorset
    Trade Member since 2018

    bricklayer, over 25 years experience, fully insured, extensions, renovations, alterations, barn conversions, hard landscaping, read more

    Latest Extensions feedback review:

    Kitchen and bedroom house extension

    Chris and his team are very professional, punctual and hard working! They did a fantastic job on our extension, we couldn’t recommend him enough! We will definitely would like Chris to come back again when we do our part 2 extension in...

    By ana60225 on

  • DCH Building Services

    Extension Builder working in Dorset
    Trade Member since 2015

    Tradition and honest workmanship are the hallmarks of our building and joinery company. We build anything from extensions to fitted wardrobes according to your requirements, exploiting to the full our eye for detail and accomplished craftsmanship. read more

    Latest Extensions feedback review:

    knock down and rebuild existing utility room

    David – with Roy and Joe – did a wonderful job of my extension (a downstairs room with double doors to the garden and tiled roof, and with a small separate toilet and handbasin). I am 100% happy with the result. They are all experienced...

    By rebuild_utility on

  • Living space construction

    Extension Builder working in Dorset
    Trade Member since 2018

    We cover all aspects of the Building & Glazing trade and provide high quality services for homeowners and businesses. You can choose us knowing we have the right specialised tradesmen to design and manage your project. Livingspace / Trade Glaze can take you from assessing read more

    Latest Extensions feedback review:

    Porch to front of house

    Really pleased with the Porch, looks great and finished to a high standard. Took a little longer than anticipated, but this wasn't due to any fault of Living space. Would hire again if I required any other building work.

    By pamela33144 on

  • JST Builders

    Extension Builder working in Dorset
    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

  • MAB Building Limited

    Extension Builder working in Dorset
    Trade Member since 2013

    An established general building company. We are based in Verwood Dorset. We have qualified tradesmen Bricklayers, Carpenters, Electricians and Plumbers. All qualified to NVQ and city and guilds levels. We also have a qualified Architect who will project manage if read more

    Latest Extensions feedback review:

    Southborne extension

    Mick was professional throughout the job, no problem was too much as well as being friendly and approachable. Skilled in many aspects from building, electrics and kitchen fitting all to a high quality standard. The end result looks...

    By charlotte21385 on

  • LFS Construction and Roofing

    Extension Builder working in Dorset
    Trade Member since 2011

    LFS Construction and Roofing is a local building company. We are a family run business. We have over 25 years experience in building We specialise in: Loft conversions, Extensions, Flat Roofing (Rubber EPDM, GRP Fiberglass and Traditional Mineral Torch-on Felt), Garage read more

    Latest Extensions feedback review:

    Back porch

    Luke is a lovely guy who is a good builder and a safe pair of hands. He did a fantastic job with our garage conversion. Everything from his very detailed invoices to his time keeping, quality of work was spot on. Highly recommend!

    By maddie_98 on

  • DB Brickwork

    Extension Builder working in Dorset
    Trade Member since 2020

    DB Brickwork are a Dorset based Family run company that have over 40 years of experience within the construction industry. Our reputation has been built over the years by ensuring our workmanship is of the best quality and of the highest standard together with competitive read more

    Latest Extensions client reference:

    House extension /renovation/garage/ landscaping. Excellent workmanship/tradesmen/reliable/attitude/timekeeping - can’t fault in any way Used twice now and will use again-would recommend

    Reference taken by MyBuilder on

  • White Improvements

    Extension Builder working in Dorset
    Trade Member since 2023

    New to this site but not new to the building trade Experienced, reliable and friendly, family run business specialising in plastering and all aspects of building work. Local to the Bournemouth and Poole area but able to travel if necessary. read more

    Latest Extensions client reference:

    Removal of internal wall and installation of supporting steal, installation of Velux roof light, reposition of internal supporting steal, plastering all walls and ceilings internal within the property. Steve did an excellent job on all...

    Reference taken by MyBuilder on

  • AUSTIN GLAZING & BUILDING

    Extension Builder working in Dorset
    Trade Member since 2018

    FAMILY RUN BUSINESS,NVQ 3 CERTIFICATED AND ONGOING PRODUCT TRAINING, WHEN UP DATED WITHIN THE INDUSTRY. 30 YEARS EXPERIENCE WITH A LARGE CUSTOMER BACKGROUND. REPAIRS ON DOORS, WINDOWS AND REPLACEMENT FOR NEW IF REQUIRED . EXTENSIONS AND CONVERSIONS TAKEN ON , EVEN COMPLETE read more

    Latest Windows & Doors (uPVC & Metal) feedback review:

    Replace glass on patio door

    He did very good job and quick job fitting our French doors. cleaned up after the job.

    By joseph_764 on

  • SDS Building Services

    Extension Builder working in Dorset
    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

  • peter mccann

    Extension Builder working in Dorset
    Trade Member since 2014

    I have worked within the construction industry for the past 30 years, on small residential projects such as; extensions and paved driveways. In addition to this, I have also worked on large commercial developments such as the Preston north stand, and a large housing complex read more

    Latest Extensions client reference:

    Mr McCann has built a conservatory for me which was completed in March 2013. Peter was very committed to his work and ensured that the conservatory was built to a high standard, using the best materials whilst not being too expensive he was...

    Reference taken by MyBuilder on

  • JMA BUILDERS

    Extension Builder working in Dorset
    Trade Member since 2019

    Jma builders cover a wide range of quality building projects from new builds, extensions,refurbishments, plastering electrics plumbing brickwork carpentry etc. We work with a very good team of experts which know their trade well. We also have all the qualifications needed to read more

    Latest Plastering feedback review:

    Skimming of 3 ceilings asap

    Done a great job and done in a timely manner.

    By leigh29029 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 in Dorset have an average review score of 99% positive based on 1,467 homeowner reviews.

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