Extension Builders in Denbigh

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

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Some of our top rated extension builders in Denbigh

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TJ Joinery
Rating: 5 out of 5
Extension Builder in Denbigh
At TJ Joinery & Building, we take pride in delivering high-quality craftsmanship across every aspect of building work. With years of hands-on experience, our team specialises in loft conversions, extensions, and full property renovations—transforming houses into homes that perfectly fit our clients’ needs. From the smallest joinery job to large-scale building projects, we handle everything in between with the same attention to detail and commitment to excellence. Whether you’re looking to create extra living space, modernise your property, or completely renovate your home, TJ Joinery & Building provides a reliable, professional service from start to finish.
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Latest review:
Loft Conversion- 8 Aug 2024
Tom was fantastic with us and so pleased with the end result!
C.J.S Building contractors
Rating: 4.7 out of 5
Extension Builder in Denbigh
Hi my name is Shane and we are based in St Asaph North Wales. I’m a bricklayer by trade, there is a team of 3 highly skilled people and do all aspects of building work for example: extensions roofing , driveways ,,landscaping. Fencing , decking and much more . Very punctual , the work we carry out is always to a very high standard . Also very competitive rates The Photos are of the work we have carried out extensions, garage conversions ect with very happy customers when finished . Thanks Shane CJS Building Contractors
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Latest review:
Extensions- 20 May 2023
The team converted a garage to a day / sun room for me and have completed it to o a very nice standard The boss man was very good and was very prepared to change the build to my suggested requirements as and when I could see it needed it, in fact he encouraged it Really pleased with the outcome and would recommend them Thanks Shane and your team
Just Build Construction
Rating: 4.5 out of 5
Extension Builder in Denbigh
With more than 12 years of experience in full property restorations and repairs, I deliver a seamless, high-quality service from start to finish. Every trade is managed in-house, ensuring clear communication, accountability, and a smooth process without the hassle of hiring multiple contractors. I work efficiently, maintain a clean and respectful environment, and are uncompromising when it comes to detail and finish.
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Latest review:
Decking- 12 Jun 2026
James was a pleasure to deal with from start to finish. He started the job on the date that was agreed and completed my replacement decking to a high standard. We would definitely recommend James for future work.
K-cal plastics ltd
Rating: 4.9 out of 5
Extension Builder in Denbigh
We are a small family run business, based in north Wales. The company was formed in 2009. We are suppliers and installers of quality upvc and aluminium double glazed windows and doors, conservatories, high security composite doors, steel doors. Facia boards, soffits and gutters, cladding and small extensions.
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Latest review:
Extensions- 9 Sep 2025
Sean was great. The job was completed in a day and a half. Polite and very hardworking. I would definitely hire again if I need more work doing. Thank you guys. Very happy with the work you put in.
BP Brickwork
No reviews yet
Extension Builder in Denbigh
Hello, I’m Ben I’m a Bricklayer looking to grow my business.
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Ashley francis
Rating: 5 out of 5
Extension Builder in Denbigh
*BRICKLAYING *FENCING *PATIOS *DRIVEWAYS *DEMOLITION *ROOFING
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Latest review:
Fencing- 26 Jan 2026
Great job , reasonably priced and prompt start
EMW Developments ltd
Rating: 5 out of 5
Extension Builder in Denbigh
We are a building and groundworks company Based in North Wales.We are Architect approved and have been awarded the CHAS health and safety accreditation. We also operate a full property maintenance department, with clients including a number of estate agents, businesses, and private landlords. All of our staff are extremely professional and courteous. We always deliver what we promise and more. Priding ourselves on completing jobs within timescales & ensuring work causes minimal disruption.
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Latest review:
Gas Work- 3 Nov 2017
Job completed at a very competetive price. Very happy with the work completed.
ServiceBase Ltd
Rating: 5 out of 5
Extension Builder in Denbigh
All aspects of building & renovation work. We also undertake work on listed buildings. We supply & fit quality windows and doors. Trained contractor of seamless fibreglass flat roofing system. Over 30 years experience. Trading Standards approved trader QUALITY,RELIABLE,HONEST
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Latest review:
Windows & Doors (uPVC & Metal)- 15 Jun 2018
The workmen were all very professional and friendly. The site access was difficult but they coped really well. Job looks really good now it’s finish.
Marchland Developments Ltd
Rating: 5 out of 5
Extension Builder in Denbigh
Welcome to Marchland Developments Ltd. Originally based in Shropshire and now relocated to North Wales. We have many years experience in everything from general maintenance to extensions and refurbishments, providing a high level of customer service. We are approachable and flexible, with an emphasis on high quality workmanship. Fully insured & all work guaranteed.
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Latest review:
Windows & Doors (uPVC & Metal)- 2 Apr 2016
Very pleased with the job Andy did for us I would highly recommend him
Diamond Brickwork and Groundworks
Rating: 5 out of 5
Extension Builder in Denbigh
Diamond Brickwork And Groundworks Have Over 16 years experience, We take on all types of jobs from small domestic work to larger commercial projects, all carried out to the highest standards, and at very competitive prices.
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Latest review:
Groundwork & Foundations- 11 Oct 2023
Gethin and the boys were brilliant worked fast checked everything was as required went above and beyond at a very reasonable rate Would not hesitate to recommend them definitely a five stars from us
R. Oxley
Rating: 5 out of 5
Extension Builder in Denbigh
Covering a wide variety of building projects, small to large. Free no obligation quotes. Competitive pricing. High standard of workmanship. Reliable and committed to your job, start to finish.
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Latest review:
Very helpful, courteous and efficient job carried out by Richard Oxley.
Mark allen construction
Rating: 5 out of 5
Extension Builder in Denbigh
We are a small local building company with over 20 years experience. During this time we have gained an enviable reputation for quality and value for money. Specialising in extensions we can take on as much or as little of the project as the customer requires from the basic shell through to the final completion. We are fully insured, our public liability insurance can be viewed on request, and we have many satisfied customers who would be only too willing to act as references for us if needed
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Latest review:
Conversions - General- 4 Nov 2025
Extremely happy with the end result. Mark communicated well every step of the way keeping me up to date on progress. Stuck to time frames, gave honest advice/opinion and always cleared up at the end of day. Looking forward to the next project and having them back again
SMJ.joinery kitchens & Home improvements
Rating: 4.8 out of 5
Extension Builder in Denbigh
We are a small Home improvements company with over 30yrs in Home improvements newbuuld and restoration using time served trades in every aspect of home improvements at bespoke quality at fair and comprehensive prices . And been awarded 20yrs of excellence. By trading standards.. Google smj joinery kitchens &Home improvements. For anymore information.
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Latest review:
Plumbing- 2 Jun 2026
Excellent. I needed someone to remove an existing washing machine and for a new one when it arrived. Shaun was on the job immediately, arrived when he said he would, and did the job efficiently....returning a week later to fit the new machine. Reasonable price charged. Honest, friendly and respectful. Hoping to get him back for other work in the future.
KRM CONSTRUCTION
Rating: 5 out of 5
Extension Builder in Denbigh
Krm Construction ltd have been in business for over 25 years and pride ourselves in offering a fast efficient service at reasonable prices with no obligation written quotations. We offer a full service for your home including kitchens , bathrooms ,structural alterations , plastering , decorating we also specialise in quality garage conversions.
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Latest review:
Conversions - General- 11 Mar 2025
Good customer service, chimney coming down this eeek
Kelvin Griffiths Builder
Rating: 5 out of 5
Extension Builder in Denbigh
We are builders from Kimmel bay north Wales we carry out extensions, loft and garage conversations, new build and refurbs. I’ve got over 40 years experience. I project manage the jobs so you get all our attention from start to finish and we have many happy clients who can can give you feedback if needed.we work with all local building inspecters we garantee our work for as long as we are trading
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Latest review:
Extensions- 25 Jul 2019
The extension project, was not without an odd setback from the inspection process, but kelvin took it all in his stride. Overall kelvin is a knowledgeable and competent builder. He has contacts in other trades that helped with the project. The building of the extension is complete, other trades, plumber and electrician are progressing 2nd fixing to finish the overall bathroom.
Gill & Sons Plastering and Building
Rating: 5 out of 5
Extension Builder in Denbigh
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.

Top rated Extension Builders

Our Extension Builders in Denbigh, 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 Denbigh?

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

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

What are the hourly rates of extension builders in Denbigh?

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

Find extension builders in Denbigh with MyBuilder

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

Step 2: Compare different extension builders in Denbigh

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

Step 3: Hire Denbigh extension builders with confidence

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

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

What to ask a Denbigh extension builder before hiring?

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

An extension builder in Denbigh 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 Denbigh 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 Denbigh?

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 Denbigh 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 Denbigh 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 Denbigh

Can an extension builder in Denbigh help with planning permission?

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

Many Denbigh 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 Denbigh help with materials and finishes?

Yes, most extension builders in Denbigh 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.