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Find an Extension Builder in Northumberland
Find a local extension builder near you. We have 427 trusted and reviewed extension builders in Northumberland to choose from, based on 569 reviews.
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Extension Builders in Northumberland
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59 yr old builder.been in the trade 30 years. Mainly do conversions and structual alterations. All types of trades available eg joinery.roofing.plumbing.electrical and plastering available
Latest Repointing Review
"Carried out removal of glass bricks on external wall, bricked up opening and repointed full wall. Very happy with the finished result and would recommend. Competent builder, competitive price, turned up when he said he would and..."
Reviewed by Julie on 4th Sep 2026Based in NE25 9QJ,
Whitley Bay
Extension Builder covering Northumberland
Member since Jul 2022
ID Checked
At NE1 Building Company, we are a trusted local building company based in Newcastle, delivering high-quality workmanship across every project. With years of experience in the trade, we specialise in home extensions, property renovations, kitchen inst...
Latest Chimney Building / Repair Review
"Daryl and his dad were very professional, neat and clean on the job and really easy people to work with. We had double chimney stack removed and Daryl made sure to go out of his way to do little extras for us. Will be using them a..."
Reviewed by Nasifah on 10th Aug 2026Based in NE3 3UW,
Newcastle Upon Tyne
Extension Builder covering Northumberland
Member since Jul 2026
ID Checked
i am a time served bricklayer in bricks blocks and stonework i also do joinery and steel rsj pitched and flat roofs, also gutters fascias and block paving, i have over forty years experience in all of these aspects.
Latest General Maintenance Review
"First class service from start to finish. Would highly recommend."
Reviewed by Brian on 29th Jun 2026Based in DH9 8ER,
Annfield Plain
Extension Builder covering Northumberland
Member since Mar 2019
Public liability insurance
We are a small building company based in north Tyneside/ Northumberland and undertake all kinds of building work-extensions, garden refers, plastering, rendering, new roofs etc and have decades of experience between us. Our work is fully insured and...
Latest Extension Review
"Dan gave a very competitive quotation. He visited us several times as we were unable to start the job straight away (in fact it was over a year later). Dan gave advice in regards to regulations and mapped out how the job would t..."
Reviewed by Wayne on 28th May 2026Based in NE13 6NA,
Wideopen
Extension Builder covering Northumberland
Member since Oct 2023
ID Checked
At aria builders we specialise in transforming homes through high-quality garage conversions, extensions, and full refurbishments. Our goal is simple: to help homeowners make the most of their space while adding comfort, value, and functionality to t...
Latest Builder Review
"We had a garage conversion done in February and from start to finish Ryan was excellent firstly in talking through what would work best for us space wise and price wise, the job was done in the time frame given and everything was..."
Reviewed by Darren on 7th May 2026Based in DH4 7LT,
Houghton Le Spring
Extension Builder covering Northumberland
Member since Nov 2025
ID Checked
Lbr construction…. We are a small construction company based in durham.. we undertake all aspects of building work. We are big enough to cope small enough to care……. Every project we undertake with care and dedication..
Latest Screeding Review
"LBR re-did my sinking conservatory floor after a fraud builder messed up. They did a fantastic job and the conservatory now looks beautiful. Thank you, so much, Daniel"
Reviewed by June on 16th May 2026Based in DH2 3AU,
Chester-le-street
Extension Builder covering Northumberland
Member since Jul 2025
Public liability insurance
We are a small Home Improvement company based in Whitley Bay, we have over 20 years experience in the building game. We're City and Guilds Approved and fully insured. We specialist in Electrical Installations and Inspections (EICR), Kitchen refi...
Latest Lighting & Power - Internal Review
"Great service from friendly local team"
Reviewed by Sheenagh on 10th Aug 2026Based in NE25 9HU,
Whitley Bay
Extension Builder covering Northumberland
Member since May 2026
Public liability insurance
I come from a construction background with 5 years experience in general building along with my last 2 years specialising in joinery
Latest Chimney Building / Repair Review
"Really happy with the work carried out to widen our fireplace. Reliable, reasonably priced and the work was completed to a high standard. Would definitely recommend."
Reviewed by Shelby on 7th Aug 2026Based in NE16 5PB,
Sunniside
Extension Builder covering Northumberland
Member since May 2026
ID Checked
Oak & Stone NE – Building & Landscaping Services At Oak & Stone NE, we provide a wide range of professional building, landscaping and property improvement services. From transforming outdoor spaces to renovating inside your home, we can take care of...
Latest Wooden Decking Review
"Good lads . Done a professional job . I told Oak and stone at the start of the process I was getting 3 quotes and Ian was happy for me to do that . The job is now complete and we are both happy with the end result. Hopefully my r..."
Reviewed by Edward on 5th Aug 2026Based in NE5 5HT,
Newcastle Upon Tyne
Extension Builder covering Northumberland
Member since Dec 2025
ID Checked
Mortar & Grout Specialists in General brickwork/stonework and Tiling. Freindly, honest and professional. We will work with a client to get the best out of the budget and finish works to the highest standards. Free quotations. Kind Regards
Latest Internal Renovation / Reconfiguration Review
"Bez did a brilliant job rebuilding my damaged garden — all finished to a high standard. He responded quickly, really knows his stuff, and is an incredibly helpful and friendly guy. I will definitely be going back to him in the fut..."
Reviewed by Tony on 24th Apr 2026Based in NE4 7ET,
Newcastle Upon Tyne
Extension Builder covering Northumberland
Member since May 2019
Reliable experts in plastering, flooring, joinery, and plumbing, delivering high-quality workmanship for residential and commercial projects with attention to detail and customer satisfaction.
Latest Plasterer / Renderer Review
"Two young lads who came and helped a lot with moving furniture around after plastering bathroom ceiling thanks a lot lads 👍"
Reviewed by Courtney lane on 23rd Apr 2026Based in NE5 3HJ,
Newcastle Upon Tyne
Extension Builder covering Northumberland
Member since Apr 2026
ID Checked
Painting & Decorating Floor Tiles If you need an expert in these fields you can call and we come to make a free quote!
Latest Wooden Doors - Internal Review
"Absolutely amazing! On time, did a great job for a fair price. Very happy and will definitely use them again!"
Reviewed by Gary on 13th Apr 2026Based in NE28 6QE,
Wallsend
Extension Builder covering Northumberland
Member since Feb 2025
ID Checked
15 years experience as qualified joiners and kitchen fitters
Based in NE61 3JU,
Morpeth
Extension Builder covering Northumberland
Member since Jan 2025
ID Checked
GS Joinery & interiors provide 10+ years experience in the trade, there is nothing we don’t cover when it comes to internal work; professional and trustworthy! We look forward too hearing from you :)
Latest Wooden Doors - Internal Review
"Very professional"
Reviewed by Joan on 29th Aug 2026Based in DH4 4DE,
Houghton Le Spring
Extension Builder covering Northumberland
Member since Dec 2016
ID Checked
15 years in the trade private and commercial jobs from start to finish, I’ve also done lots of specialist work like random stone , arch ways and radius walls No job too small.
Latest General Brick Laying Review
"Zac is an exception tradesperson and I would recommend him for any bricklaying work you have. 1) reasonably prices 2) ensured I’d got the materials i was responsible for. 3) communication was first class 4) worked continually unti..."
Reviewed by Paul on 17th Aug 2026Based in DH9 0HD,
Stanley
Extension Builder covering Northumberland
Member since Jul 2023
Public liability insurance
Hello, I’m Tom, a 27-year-old who has been a joiner for 10 years. I love what I do and take a lot of pride in my work. I’d say my specific quality jobs are flooring and doors, but I cover all aspects of joinery/carpentry. I am new to this website jus...
Latest Laminate Flooring Review
"Tom did a first class job from start to finish, from estimate to finish Communication was good from the start Let us know times he'd be starting and got there on time, no waiting around All don't expertly and at a very good price..."
Reviewed by Alan on 11th Aug 2026Based in NE5 1HX,
Newcastle Upon Tyne
Extension Builder covering Northumberland
Member since Jan 2026
ID Checked
Let Newcastle Property Transformation take your property to the next level! -NPT Newcastle Property Transformation Proudly serving Newcastle, Gateshead, North Shields & South Tyneside. Extensions, bathroom, ref...
Latest Garden Maintenance Review
"Amar and his team did an amazing job fixing up our fence that was badly damaged & was very professional from beginning to end! Really great service and i highly recommend."
Reviewed by Tahera on 5th May 2026Based in NE4 9UL,
Newcastle Upon Tyne
Extension Builder covering Northumberland
Member since Sep 2024
ID Checked
We are a family run business with over 40 years experience we believe nothing beats quality work.We operate all over the north east,we cover all aspects of ground works
Latest Stone / Concrete Paving Review
"The work was done to a high standard and completed very quickly. Well done!!"
Reviewed by Michelle on 28th Apr 2026Based in NE64 6TD,
Newbiggin-by-the-sea
Extension Builder covering Northumberland
Member since Feb 2024
ID Checked
We are a local firm with world-class values and dedicated team of professionals for first class workmanship we supply high-quality products And care about our customers needs satisfaction guaranteed
Latest Flat Roof Review
"Great guys, job done with no fuss. Tidy, clean efficient!"
Reviewed by Richard on 10th Mar 2026Based in NE23 8BZ,
Cramlington
Extension Builder covering Northumberland
Member since Sep 2024
ID Checked
Hi, been doing this for a long time now, I have substantial experience in all building work and joinery finishing work, will offer advice and vision to achieve the job you want and expect, regards, phil grant. Cscs gold card holder.
Latest Internal Renovation / Reconfiguration Review
"Fitted me in quickly Completed the job as advised and tidied up after completion First class tradesman Very happy with the job"
Reviewed by Michelle on 28th Jan 2026Based in NE13 6HH,
Seaton Burn
Extension Builder covering Northumberland
Member since Jun 2019
ID Checked
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Our Reviews
All reviews are submitted by homeowners who have had work completed as part of using our service. Whilst every effort is made to verify and check reviews, we ask all homeowners to conduct their own research and follow our Homeowner Checklist before hiring.
To understand more about our reviews process, please visit our Reviews Policy.
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