Extension Builders in Criccieth

Easily find verified Criccieth Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Criccieth.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Criccieth

48 Results

Sort by:

I W Jones Adeiladwr - Building Contractor
No reviews yet
Extension Builder in Criccieth
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
Get in touch
Josh Fielding
No reviews yet
Extension Builder in Criccieth
Cover all of north wales. All aspects of groundwork’s undertaken. Stone masonry specialist. Brickwork, block work and extensions undertaken. Patios and driveways.
Get in touch
Paul Morgan Construction
Rating: 5 out of 5
Extension Builder in Criccieth
Bricklayer by trade. 30 years experience in construction, the last 10 in project management & site management. We undertake various projects from new build houses and extensions, to barn conversions and refurbishment. Bricklaying & stonework specialists. Also Groundworks including drainage, fencing, decking and hard landscaping. We can also offer value engineering solutions.
Get in touch
Latest review:
Extensions- 21 Oct 2019
Paul has been extremely helfpul in the renovation of our first home. He has re-built our kitchen, fitted doors, windows and renovated upstairs (from a bungalow). He was able to advise us on what would work best as we had no clue where to start. He always showed up when he said he would, is very clean and tidy and cleary takes pride in his work. We have no complaints and with years experience he has also been able to recommend other tradespeople to us. We highly recommend him and have already recommended him to others. Really appreciate all the work he has done for us.
Cerwyn construction
Rating: 5 out of 5
Extension Builder in Criccieth
I have over 20years of experience in the building trade in all aspects from foundations right up to finish project no job to small.
Get in touch
Latest review:
Bricklaying- 31 Jul 2019
I would certainly recommend cerwyn construction I can not fault them they did a fantastic job very neat and tidy worked in all weathers and very professional
Celtic Heritage Construction & Stonemasonry Ltd
No reviews yet
Extension Builder in Criccieth
We are a building, stone masonry and glazing company with over 35 years experience in the construction industry.
Get in touch
Renovo Building & Construction
Rating: 5 out of 5
Extension Builder in Criccieth
Renovo Building & Construction Where projects mean peace of mind We are a family run local business who pride ourselves on our workmanship! We have over 15 years experience in the industry covering a broad range of projects. We have a polite, friendly and hardworking team who strive to give our clients the best possible standard of work and always do our best to offer intelligent & affordable solutions to suit your projects requirement’s. Here at Renovo we have a wealth of knowledge and a strong passion for our work so whether your looking for a complete revamp or your kitchen or you want a garage building for your pride and joy you can trust us to deliver a complete service from beginning to end. Rest assured you be delighted with our team and the service we provide, Our team of highly skilled professionals is dedicated to providing top-tier maintenance, repair, and emergency services to a diverse clientele, including residential, commercial, and industrial sectors To discuss your requirements in detail and to receive a full written no obligation quotation of quality workmanship, reliability & peace of mind, just get in touch! We look forward to working with you. Many thanks, The Renovo Team
Get in touch
Latest review:
Bathroom Fitting- 26 May 2026
Excellent work. New wall mounted extractor fan and bathroom radiator fitted. Quoted promptly and did not deviate from the price. Antony arrived on time, completed the work in one day and left the bathroom clean and tidy. Kept us informed and provided invoices for the deposit and completed work. Very pleased with this company.
Andrew Garlick
No reviews yet
Extension Builder in Criccieth
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
Get in touch
Altro building contractors
No reviews yet
Extension Builder in Criccieth
Hi we’re a Gwynedd based construction company, with 10+years experience in all aspects of construction work
Get in touch
Jk brickwork
Rating: 2 out of 5
Extension Builder in Criccieth
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
Get in touch
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.
Michael roberts brickwork
No reviews yet
Extension Builder in Criccieth
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.
Get in touch
o m williams building & roofing
Rating: 5 out of 5
Extension Builder in Criccieth
ive been in the building trade for 30years i cover all jobs all types of roofing to new builds i specialise in damp proofing i can tell you if your property is damp or just needs ventilating if you have rising damp or that your dpc is bridged i can tell you the best methods for cure and give you years of guarantee on it for piece of mind theres no job i wont do im fully insured so your covered from the start
Get in touch
Latest review:
Loft Conversion- 29 Oct 2025
A big thank you to Orwel for transforming our leaking dormer loft. His team was fantastic throughout, completing the work quickly and to a very high standard. Provided great advice and helped us choose the right cladding. Couldn't recommend enough - Thanks!
L.J. Construction
Rating: 4.7 out of 5
Extension Builder in Criccieth
We are a small family run team of General builders. Offering work from light switch replacement, to full house builds. Plastering/rendering Blockwork Joinery Plumbing Electrical Groundworks Roofing Tiling Labourers Painting and decorating Custom work All aspects of building work undertaken, by local, reliable hard working tradesmen.
Get in touch
Latest review:
Bathroom Fitting- 12 Jun 2024
Very efficient, gave us a competitive quote, completed the work to a very high standard, lovely guy and very helpful at all stages. Would highly recommend!
Pete Mona Building Contractor
Rating: 5 out of 5
Extension Builder in Criccieth
Anglesey based builder in the heart of Anglesey over 25 years experience and we do our work to tip top standard.. we use top qualifying trade workers if we need them . We take big pride in the work we do ..
Get in touch
Latest review:
Extensions- 3 Oct 2020
Amazed with the experience from this builder, was very thorough, prompt and did a fabulous job. Would recommend him to anyone. Very good to work with and we can't thank him enough for all he's done.
JH limited
Rating: 5 out of 5
Extension Builder in Criccieth
We are a new construction company, with plenty of experience in all trades. The work we usually carry out is mainly extension work and refurbishment to existing house's. Minor works also undertaken such as single room refurbishment of bedrooms, bathrooms, kitchens ect;
Get in touch
Latest review:
Extensions- 17 Oct 2020
Overall an excellent build. Although this was a straight forward build, foundations, concrete floor, single skin blockwork walls, pitched roof with corrugated bitumen sheeting roof, key to the build was the flatness and levelness of the concrete floor and neatness of the blockwork and pointing on the inside as it was not to be rendered on the inside. My initial concerns of using a Contractor I had no previous direct experience were gradually alleviated as the build progressed. James, Greg and their team were good workers and skilled at their trade, particularly Dan and Harvey. My real concerns over the ability to delivery the quality floor were dispelled when seeing the team at work, Greg takes the lead for groundworks and blockwork and did an excellent job. The quality of the blockwork has attracted many positive comments from passing neighbours, as has the finished roof, soffits, facias and bargeboards. The use of AGR for the demolition and groundworks and GMC for the high spec. concrete can be highly recommended. The use of 'Ozzy' (Paul Evans) for the small fibreglass flat roof can also be recommended. Early on in the build I had some concerns about material shortages on site meaning that precious hours of good weather were being lost but a sharing of these concerns resolved the issue. JH were open to consider changes and extras on the build for which I was grateful. Communications with the client is key and there were a few times when I had to chase for info. Very happy.
RM Groundworks And Plant Hire
Rating: 5 out of 5
Extension Builder in Criccieth
RM Groundworks is familly run buisness with many years of experience in the groundwork and landscaping industy. From small jobs to big projects we welcome all work.
Get in touch
Latest review:
Reasonable price, really efficient work putting up a garden fence for me. Very pleased, will be using again for another job soon.
Davies-Hughes & Sons Ltd
No reviews yet
Extension Builder in Criccieth
Extensions, visitor centres to cruck framed barns - we have over 20 years experience in the fine design and build of timber framed buildings. Including many award winning and recognised projects
Get in touch

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

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

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

What are the hourly rates of extension builders in Criccieth?

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

Find extension builders in Criccieth with MyBuilder

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

Step 2: Compare different extension builders in Criccieth

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

Step 3: Hire Criccieth extension builders with confidence

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

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

What to ask a Criccieth extension builder before hiring?

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

An extension builder in Criccieth 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 Criccieth 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 Criccieth?

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 Criccieth 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 Criccieth 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 Criccieth

Can an extension builder in Criccieth help with planning permission?

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

Many Criccieth 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 Criccieth help with materials and finishes?

Yes, most extension builders in Criccieth 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.