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Find an Extension Builder in Blaenau Gwent
Find a local extension builder near you. We have 1,205 trusted and reviewed extension builders in Blaenau Gwent to choose from, based on 1,039 reviews.
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Extension Builders in Blaenau Gwent
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Supply and installation of all upvc and aluminium products including windows doors and Conservatories. Other trades available on request. All work comes with a 10 year insurance backed guarantee.
Latest Glazing - Double / Single Review
"Brilliant fitter. Good quality windows"
Reviewed by Clai on 21st Jan 2026Based in NP23 6AB,
Ebbw Vale
Extension Builder covering Blaenau Gwent
Member since Dec 2023
ID Checked
We are a established damp proofing and reputable building company with 30+ years of experience in all domestic and commercial properties throughout the South Wales and East valleys. fully qualified and insured. We also undertake loft conversions and...
Latest General Maintenance Review
"The guys were great, got the job done in no time at all."
Reviewed by Owen on 2nd Feb 2026Based in NP20 4BX,
Newport
Extension Builder covering Blaenau Gwent
Member since Dec 2025
Public liability insurance
Insulationize ltd is a general contracting firm specializing in residential renovations and additions. We are a full-service company dedicated to quality construction and client satisfaction. Our goal is to provide our clients with a high-quality fin...
Latest Internal Rendering Review
"Matt was excellent - friendly, professional and helped put my mind at ease with a house I'm buying - 10/10 recommend!"
Reviewed by Lily on 8th Dec 2025Based in NP22 3SE,
Nantybwch
Extension Builder covering Blaenau Gwent
Member since Aug 2021
ID Checked
I have been trading for over 35 years in the building game and cover all aspects of the building trade and I have my liability insurence up to date
Latest Builder Review
"John and Andrew have worked on major renovation projects and extensions at our home over the past 5 years. The fact that we keep returning to them is testament to their quality work and our excellent working relationship. I would..."
Reviewed by Alec & Lisa webley on 3rd Jun 2025Based in NP23 4DA,
Brynmawr
Extension Builder covering Blaenau Gwent
Member since Jul 2024
ID Checked
We are a family owned Builders. We take on almost anything from building extensions, to repairing leaks, just ask and if we cannot do it we will let you know.
Based in NP23 6HS,
Ebbw Vale
Extension Builder covering Blaenau Gwent
Member since Jul 2022
Established property development, ex military with a strong work ethic and a keen eye detail. For all your property development needs
Based in NP23 6HY,
Ebbw Vale
Extension Builder covering Blaenau Gwent
Member since Sep 2024
I have complete my bachelor degree in civil engineer
Based in NP23 4AJ,
Brynmawr
Extension Builder covering Blaenau Gwent
Member since Feb 2024
<a href="https://baileysbuildingcontractors.co.uk/">Baileys Building Services</a> aims at bringing their client’s vision to life with superior craftsmanship & unparalleled service. They pride themselves on their meticulous attention to detail, a...
Based in NP23 7RU,
Cwm
Extension Builder covering Blaenau Gwent
Member since Mar 2025
H&R construction and roofing has many years experience, happy to take on any type of roof works including velux window fitting and flat roofing. We also do some ground works such as patios and deckings. We have recently been building outdoor summ...
Based in NP22 3TL,
Cefn Golau
Extension Builder covering Blaenau Gwent
Member since Jul 2024
ID Checked
Groundworks,Bricklaying, Landscaping, Concreting, Paving, jet washing and window cleaning All aspects of general building
Based in NP22 3BP,
Nantybwch
Extension Builder covering Blaenau Gwent
Member since Sep 2025
ID Checked
Hi I’m a builder for about 16 years now all aspects of home renovations undertaken from full home restoration to fitting kitchens bathrooms hanging doors and so on
Based in NP22 4LU,
Tredegar
Extension Builder covering Blaenau Gwent
Member since Jan 2026
Family run business from Ebbw Vale with over 20 years experience in all aspects of groundwork
Based in NP23 6LZ,
Ebbw Vale
Extension Builder covering Blaenau Gwent
Member since Jan 2024
We're a gang of experienced builders, with many of years experience between us. We specialise in extensions, groundwork,brick laying, internal knock out and lintel work. We have a vast portfolio of jobs under our belt, both internal and external...
Based in NP22 4PP,
Tredegar
Extension Builder covering Blaenau Gwent
Member since Dec 2024
ID Checked
General building - waste clearances and septic tank install and Soakaways, garden design and maintenance. UPVC and wooden window installation, waste removal including hazardous- please ask for more services. Handy man services and much more
Latest Internal Walls Review
"Perfect, would use Ben again :-)"
Reviewed by Eleanor on 12th May 2026Based in NP19 9BY,
Newport
Extension Builder covering Blaenau Gwent
Member since Dec 2025
ID Checked
J.a.b building & property maintenance is a family run business experienced in all types of masonry,we have skilled stone masons to skilled roofers working on our team,do not hesitate for a free no obligation quotation!!
Latest Brick / Block Paving Review
"Good job. Happy with the concrete base."
Reviewed by Kim on 11th May 2026Based in SA18 2DR,
Ammanford
Extension Builder covering Blaenau Gwent
Member since Apr 2025
ID Checked
I have been in this filed off work for around 15 years . Left school plastering for 5 years . And then started brick laying. Can take projects on from start to finish. Many photos on my Facebook of all my work.
Latest Walls & Pillars Review
"Lewis did a great job replacing our retaining wall in our garden. He was always keen to make sure we were happy with the work done and he made a nice and tidy job of it. Plans changed during the build but he ran changes past me an..."
Reviewed by Peter on 25th Apr 2026Based in BS36 1HD,
Winterbourne
Extension Builder covering Blaenau Gwent
Member since Sep 2024
ID Checked
With over 27 years of experience in the construction industry, we provide reliable, high-quality building services for both residential and commercial projects. Our work covers all aspects of construction, from renovations and refurbishments to loft...
Latest Internal Renovation / Reconfiguration Review
"From the very beginning, Dan did an amazing job,installed top quality joists and floorboards,and did it very quickly and efficiently.Dan is also a very conscientious worker and strives always for customer satisfaction. I cannot re..."
Reviewed by David on 12th Apr 2026Based in CF64 1HF,
Penarth
Extension Builder covering Blaenau Gwent
Member since Mar 2026
ID Checked
we are a family run construction company built on hard work, honesty and pride in our craft, we specialise in delivering high quality construction and renovation services tailored to each client's needs. we value personal relationships, clear communi...
Latest Stud Wall Review
"Excellent job will use him again"
Reviewed by Caroline on 20th Mar 2026Based in SA6 5EZ,
Clydach
Extension Builder covering Blaenau Gwent
Member since Jan 2026
ID Checked
All building work from small jobs Extensions Refurbishments All work carried out by professional trades
Latest Plaster Skimming Review
"Very friendly did everything I asked will use again"
Reviewed by Elizabeth on 4th Feb 2026Based in CF62 9BU,
Barry
Extension Builder covering Blaenau Gwent
Member since Apr 2017
ID Checked
I founded my building company over 20 years ago, since which time I have proudly watched it expand into an exceptional team of friendly and highly skilled perfectionists. We care passionately about our work and also pride ourselves on being great lis...
Latest Garage Conversion Review
"Piotr converted our garage into an office and snug space and did an amazing job. He is very hard working and always responds to messages very quickly unlike other builders we've dealt with in the past. Highly recommend!"
Reviewed by Louise on 11th Jan 2026Based in BS10 7PW,
Bristol
Extension Builder covering Blaenau Gwent
Member since Jan 2025
ID Checked
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