Extension Builders in Conwy

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (1 reviews)

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Some of our top rated extension builders in Conwy

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dmdconstruction
Rating: 5 out of 5
Extension Builder in Conwy
DMD Construction is a company which prides itself on reliability, trustworthiness and quality of work. With over 10 years experience in the construction industry DMD Construction can complete any project to the highest quality for a fair, reasonable price.
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Latest review:
Conversions - General- 26 Feb 2026
We have worked with many tradesmen over the years, and by far Dewie is the most considerate, conscientious, and tidy builder we have experienced. He came into our home, and with three very small children, we were understandably worried about dust, mess, and disruption. Dewie immediately put our minds at ease and was incredibly thoughtful throughout the process. He was forward-thinking with his quotes and approach to the work, ensuring everything ran smoothly. We can highly recommend him and would not hesitate to use him again for any future projects.
I W Jones Adeiladwr - Building Contractor
No reviews yet
Extension Builder in Conwy
I am a fully qualified plasterer and bricklayer with over 25 years of experience in the building trade. I specialise in extensions, renovations, and all aspects of general building work, delivering high-quality craftsmanship on every project. My expertise includes extensions, plastering, silicone rendering, micro-cement, and Venetian plastering. I also specialise in installing complete wet rooms and bathrooms, ensuring a flawless, modern finish. With a strong reputation for reliability, professionalism, and attention to detail, I take pride in providing a trustworthy, efficient, and cost-effective service. Whether you’re looking for a home extension, expert plastering, or a high-end bathroom transformation, I offer tailored solutions to meet your needs. No job is too big or small—I’m happy to discuss your project and offer expert advice. Get in touch for a free quote
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GB Operations (Gwynedd) Limited
Rating: 5 out of 5
Extension Builder in Conwy
Gwynedd Builders is a successful building company established in North Wales. With our dedicated and skilled team every client can be assured of receiving a structured well organised and professional service with the highest standard of work.
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Latest review:
The work is ongoing I have some holiday cottages and he has done a lot of work plumbing plastering and restoring. He started off by doing a small plastering job and the work has snowballed from there. He is a good tidy worker I am pleased with his work and I can highly recommend him.
Andrew Garlick
No reviews yet
Extension Builder in Conwy
37 years old, been a bricklayer since finished school, experience and knowledge i have loads of, been on buildings sites on a price most of my career. Do loads of landscaping and patios etc
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AJ Building Contractors Anglesey Ltd
No reviews yet
Extension Builder in Conwy
AJ Building Contractors Anglesey Ltd is a family run buisness with over 50 years experiance in the construction industry. We have expertise in both construction management and carrying out various types of projects from small scale alterations to whole extensions or new build properties.
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D O ROBERTS BUILDERS
Rating: 5 out of 5
Extension Builder in Conwy
We are a family run business and have a vast 65 years experience within the building industry.We have been members of the FMB for many years now and have gained awards for the standard of our work.We have predominantly worked on old farm and barn conversions over the last 15 years we undertake all aspects of building and joinery and offer all trades.we pride ourselves on honest hardworking ethics and punctuality and transparency is key.
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Latest review:
Extensions- 30 Jun 2019
Dafydd came out and quoted the job straight away. He has done a fantastic job and went over and above what we expected. He even tidied up some of the hall paintwork and skirtings for us. We had a very old extension which leaked and was poorly built. The extension Dafydd has built is now not only watertight, but looks amazing! And has a lovely light shaft which really brightens it up. Very high standard of work. VERY pleased and would highly recommend him.
TG Glazing and Flat Roofing
No reviews yet
Extension Builder in Conwy
- Based in Anglesey and covering North Wales. - We specialise in flat roofing, roof lanterns, double-glazing windows and doors, conservatories, porches, fascias, soffits, and guttering. - All work guaranteed. - Fluent in Welsh and English, we provide reliable, professional service for all your home improvements.
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Amlwch Construction
No reviews yet
Extension Builder in Conwy
Residential Building and Commercial As a company, we have been offering a 10-year warranty, since March 1997 and have an unblemished record of achievement with them. If you are a client looking to have your new home built or a developer looking to build multiples of new homes, look no further than Amlwch Construction We strive to provide exceptional service and quality and offer Principal Contractor services throughout Wales New bespoke homes Flats/Apartments Multiple new homes on one site Conversion of existing buildings to dwellings Listed building conversion Refurbishments and Renovations Garden walls Extensions Fully insured, compliant with CDM Regulations (2015), over 90% directly employed skilled labour.
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D GRIFFITHS JOINERY & BUILDING
No reviews yet
Extension Builder in Conwy
40 years experience in the building/refurbishment industry providing a high level of quality work for trade and private customers
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DG brickwork
No reviews yet
Extension Builder in Conwy
DG brickwork: fast and reliable workmanship with years of experience in the Trade.
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Rag Construction
No reviews yet
Extension Builder in Conwy
Hard working honest, with quality work
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QualiBuild Ltd
Rating: 5 out of 5
Extension Builder in Conwy
Adaptable and reliable building firm, with over 35 years industry experience. We are a general builder covering all aspects of residential construction, including extensions, garage and loft conversions, landscaping, kitchen and bathroom remodelling, structural work, internal wall covering, electrical and plumbing projects. We also have a specialist arm to the firm, that concentrate solely on external wall covering such as Lime, Monocouche, and Silicone renders, via both hand and spray application. We pride ourselves on outstanding quality and workmanship, from an exceptionally reliable and professional team.
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A.Hughes
No reviews yet
Extension Builder in Conwy
A.Hughes groundworks and building. I have been trading for 16 years. I undertake foundations, brickwork,blockwork, patios, landscaping, driveways, site clearance, demolition, water pipes, sewer pipes, septic tank installation, land drainage and Digger and driver hire.
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Dylan Roberts
No reviews yet
Extension Builder in Conwy
Time served bricklayer been employed for the last 22years , self employed before my employment with 40 years experience, very experienced in bricklaying , all groundworks , patios, boundary walls from building extensions to bungalows and houses
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david johnson
No reviews yet
Extension Builder in Conwy
joinery and building extensions barn conversions loft conversions civil engineering
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J&K Contracting Ltd
No reviews yet
Extension Builder in Conwy
J&K Contracting Ltd are a small groundwork building contractor with over 35 yrs experience in the construction industry From small domestic projects to large commercial projects All cpcs cscs citb qualifications And fully insured
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Top rated Extension Builders

Our Extension Builders in Conwy, are rated 5 out of 5 based on 1 review from customers like you.

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What types of services are offered by local extension builders in Conwy?

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 Conwy 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 Conwy who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Conwy?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Conwy 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 Conwy extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Conwy home extension project is likely to cost.

Find extension builders in Conwy with MyBuilder

Hiring the right extension builder in Conwy 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 Conwy extension builders. Once your job is live, we’ll share it with home extension builders in Conwy who can express their interest.

Step 2: Compare different extension builders in Conwy

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

Step 3: Hire Conwy extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Conwy, 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.

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

What to ask a Conwy extension builder before hiring?

Before hiring an extension builder in Conwy or extension building company in Conwy, 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 Conwy?

An extension builder in Conwy 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 Conwy 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 Conwy?

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 Conwy 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 Conwy 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 Conwy

Can an extension builder in Conwy help with planning permission?

Yes, many extension builders in Conwy 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 Conwy handle everything from design to construction?

Many Conwy 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 Conwy help with materials and finishes?

Yes, most extension builders in Conwy 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.