Extension Builders in Dolwyddelan

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Some of our top rated extension builders in Dolwyddelan

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Alec Roberts Building Ltd
No reviews yet
Extension Builder in Dolwyddelan
New builds, extensions, refurbishments, small works, landscaping, stone walls, patios. Underpinning.
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Cristo Construction LTD
Rating: 4.8 out of 5
Extension Builder in Dolwyddelan
With over 30 years of experience in the building industry - Cristo construction strive to deliver the very best with a first class service from start to finish, with an eye for detail and high quality finish,we are a company offering superior quality craftsmanship and exceptional value for money. "Our work is our passion!"
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Latest review:
Extensions- 21 Feb 2022
Fantastic work by Tony and team. Helpful and accommodating with all requests. Highly recommended.
Dragon Property Solutions
Rating: 4.9 out of 5
Extension Builder in Dolwyddelan
Dragon Property Solutions – Where Quality Meets Reliability, and Your Satisfaction Shapes Our Reputation. At Dragon Property Solutions, we’re proud to be North Wales’ trusted all-trades property maintenance company. With over 25 years of experience, we’ve built a solid reputation for delivering dependable, high-quality workmanship across every aspect of property care. From roofing and plastering to painting, rendering, and full renovations – we do it all with precision, professionalism, and pride. Our experienced team of skilled tradespeople is committed to excellence at every stage – from your initial consultation to the final finishing touch. We specialise in providing durable, cost-effective solutions tailored to residential, commercial, and public sector properties throughout North Wales. Whether it’s a minor repair or a full-scale project, Dragon Property Solutions is here to protect, improve, and maintain your property to the highest standards – whatever the weather.
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Latest review:
Fascias & Soffits- 19 Nov 2025
Brilliant job, lovely lads, great communication, very happy with the work thank you so much .
aaron williams plastering
Rating: 5 out of 5
Extension Builder in Dolwyddelan
my name is aaron, i am a NVQ qualified & time served plasterer, I completed my training in llandrillo college (rhos-on-sea). i have been plastering for over 15 years & have excellent knowledge in damp and woodworm, dry rot as i specialized in this for a number of years. many types of plastering such as rendering, (Krend) pebble dashing, moulding work, and all indoor skimming and boarding & prep work. I’m also Experienced in renovating properties to. i’m friendly ,honest ,clean and reliable
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Latest review:
Plastering- 26 Aug 2021
Aaron completed the rendering job promptly and fixed the door so we were very pleased and will contact again in the future. I would recommend
DBNL
Rating: 5 out of 5
Extension Builder in Dolwyddelan
Your local home improvement experts
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Latest review:
Damp Proofing- 23 Mar 2025
My issue was cured by tanking part of the wall and floor of my annex, to stop water ingress from my neighbour's garden. It was reasonably predictable that my outbuilding would act as a retaining wall against the raised soil of his garden; but I could not see the higher ground or the suspect drainage that was causing the issue. I would have needed to hire a surveyor; but Daniel served the same function, expertly using drone footage to establish the neighbour's drainage and uncapped, deconstructed chimney stack as the dual cause. I appreciate Daniel's commitment to accuracy in his reporting and value the strategic thinking that he brought to the tanking project, maintaining it at the highest standard. Thank you for being potentially prepared, through your drone footage, to step up to assist with the letting agent's collaborative efforts to bring pressure to bear on the owner/landlord. Your professionalism, and that of your expert team, reflect well on your company.
njt builders
Rating: 5 out of 5
Extension Builder in Dolwyddelan
From design to compleation,we take care of it all. Over 35 years of experience in the building industry.
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Latest review:
Plastering- 7 Aug 2025
Nigel and his team came and completed the job with ease they were on time very clean and the work was outstanding would recommend to anyone Thanks
Altro building contractors
No reviews yet
Extension Builder in Dolwyddelan
Hi we’re a Gwynedd based construction company, with 10+years experience in all aspects of construction work
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Marco Kitchen Bathroom &Decorator
Rating: 5 out of 5
Extension Builder in Dolwyddelan
Hi I have 18 years experience with Carpentry Joinery and Decorating I do high standard of work
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Latest review:
Kitchen Fitting- 5 Sep 2020
Work was carried out efficiently and within budget
Jk brickwork
Rating: 2 out of 5
Extension Builder in Dolwyddelan
Will undertake all kind of brick ,blockwork or stone construction. Very experienced in all types of build with 20 years experience in the trade. Also detailed understanding of other trades like landscaping, groundworks and carpentry
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Latest review:
Bricklaying- 27 Apr 2026
Absolutely disgusting, said i was a FXXKING nit picker, garage not squared, layed block to the outside of one corner and inner at the other corner, joke. Used the bricks for the final wall plate to fill gaps in wall instead of cutting blocks. Wall leaning, even admits this. To many pictures to put on here, this is just one. I only realised this after I let him go, at a cost of 300 for the day. If he replies to this I will post all of the photos for him to see.
Celtic Heritage Construction & Stonemasonry Ltd
No reviews yet
Extension Builder in Dolwyddelan
We are a building, stone masonry and glazing company with over 35 years experience in the construction industry.
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Michael roberts brickwork
No reviews yet
Extension Builder in Dolwyddelan
Michael roberts brickwork is a business who undertakes any type of blockwork, brickwork, patios or dry stone walls. Plenty of references to show the standard of my work and photos.
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Carlisle construction
No reviews yet
Extension Builder in Dolwyddelan
Carlisle Construction is a trusted name in the industry, bringing over 30 years of experience to every project we undertake. Known for our commitment to quality, integrity, and craftsmanship, we specialize in delivering reliable construction solutions tailored to meet the unique needs of each client. Whether it’s residential, commercial, or renovation work, our skilled team ensures every job is completed on time, on budget, and to the highest standards. At Carlisle Construction, your vision is built to last.
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Gill & Sons Plastering and Building
Rating: 5 out of 5
Extension Builder in Dolwyddelan
At Gill & Sons Plastering & Building, we specialise in delivering premium finishes and bespoke building solutions for discerning homeowners. We’re a father and son team bringing together over 60 years of combined industry experience and knowledge. Our trade qualifications include: NVQ Level 3 in Plastering City & Guilds Plumbing City & Guilds Joinery We also work with other trusted tradespeople, all fully vetted, skilled, and qualified—so you can be confident your project is in safe hands. Every project we undertake is approached with precision, care, and an uncompromising commitment to quality — because we understand that your property deserves nothing less. Operating in North Wales and areas such as Abergele, Conwy, Llandudno, Prestatyn and others, our fully qualified team is on hand for any plastering and building needs. Plastering and building is a messy job but we believe that the clean up is just as important as the task at hand.
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Latest review:
"I highly recommend will for any plastering work. He arrived exactly when he said he would and maintained excellent communication throughout. His craftsmanship, from fitting the plasterboards to the final skim, was flawless. It’s hard to find someone who balances such high technical standards with perfect punctuality. Plus, his great sense of humour made having him on-site a pleasure.
PH brickwork and Groundworks Ltd
No reviews yet
Extension Builder in Dolwyddelan
We have over 25yrs experience in the construction industry , We offer a full range of services from a brick wall to a complete new build
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RKT HOMEIMPROVEMENTS
Rating: 5 out of 5
Extension Builder in Dolwyddelan
Hi Im Ryan From the Dolgellau area we undertake all general building work from structural work to roofing work , to fitting your bathrooms and kitchens, we also cover landscaping work . And listed buildings work. I previously worked 12 years with a well recommended builder to learn all about the building trade and have been trading for 7 years, so can assure the experience is correct . We like to do things properly and under building control regulations and everything structural passed by engineers . We take a lot of pride in what we do , see the photos. We aim to keep customers happy during and after job is completed. Many Thanks Ryan
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Latest review:
Roofing (Flat)- 28 Nov 2020
Leaking flat roof, totally removed and replaced with added insulation. From first contact with RKT improvements to completion we have been really pleased. We will certainly use them again and thoroughly recommend. Tidy, friendly on time and completed as estimated.
Josh Fielding
No reviews yet
Extension Builder in Dolwyddelan
Cover all of north wales. All aspects of groundwork’s undertaken. Stone masonry specialist. Brickwork, block work and extensions undertaken. Patios and driveways.
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What types of services are offered by local extension builders in Dolwyddelan?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Dolwyddelan for you. They can help with a variety of tasks and projects, including:

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

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Dolwyddelan who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Dolwyddelan extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Dolwyddelan?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Dolwyddelan will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Dolwyddelan extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Dolwyddelan home extension project is likely to cost.

Find extension builders in Dolwyddelan with MyBuilder

Hiring the right extension builder in Dolwyddelan with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Dolwyddelan extension builders. Once your job is live, we’ll share it with home extension builders in Dolwyddelan who can express their interest.

Step 2: Compare different extension builders in Dolwyddelan

When you start receiving interest, review profiles of local Dolwyddelan extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Dolwyddelan extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Dolwyddelan, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Dolwyddelan extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Dolwyddelan extension builder before hiring?

Before hiring an extension builder in Dolwyddelan or extension building company in Dolwyddelan, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Dolwyddelan?

An extension builder in Dolwyddelan should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Dolwyddelan extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Dolwyddelan?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Dolwyddelan extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Dolwyddelan extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Dolwyddelan

Can an extension builder in Dolwyddelan help with planning permission?

Yes, many extension builders in Dolwyddelan can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Dolwyddelan handle everything from design to construction?

Many Dolwyddelan extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Dolwyddelan help with materials and finishes?

Yes, most extension builders in Dolwyddelan can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.