Extension builders in Dumbarton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (3 reviews)

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Some of our top rated extension builders in Dumbarton

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J WARD BRICKWORK
No reviews yet
Extension Builder in Dumbarton
Bricklayer with 18 years experience. Extensions; new builds; garage conversions; garden walls; steps; slap out's and all other related work.
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Prysm Projects Ltd
No reviews yet
Extension Builder in Dumbarton
Prysm Group is a professional painting and decorating contractor based in Glasgow, delivering high-quality finishes across both residential and commercial projects. Whether it’s new-build housing, private renovations, office fit-outs, or retail spaces, we bring the same level of care, precision, and reliability to every job. We offer a full range of interior and exterior decorating services and work closely with builders, developers, property managers, and homeowners to ensure smooth delivery from start to finish. Our team is fully insured, CSCS-compliant, and experienced in managing projects of all sizes — from single units to large-scale developments. At Prysm Group, we pride ourselves on clean, well-managed sites, strong communication, and consistent quality. We understand the pressures of timelines and the importance of a great final impression — whether that’s for a homeowner moving in or a commercial handover. If you’re looking for dependable, professional decorators who are easy to work with and deliver great results, we’d love to hear from you.
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DMS Group
Rating: 5 out of 5
Extension Builder in Dumbarton
Hi, my name is David and I have over 20 years of experience working as a self employed tiler and bathroom fitter. I also specialise in plastering and painting /decorating on daily basis. I have worked for multiple large Scottish tiling companies as well as on my own. I am reliable and always focused on my clients' satisfaction.
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Latest review:
Tiling- 23 Feb 2021
I would recommend David for any tiling jon. He's done a brilliant job,all on time and as agreed. He's friendly and knowledgeable. I would definitely use his services again.
FH builders
No reviews yet
Extension Builder in Dumbarton
With over 15 years of experience in the joinery trade, I bring a wealth of knowledge and expertise to every project I undertake. My passion for craftsmanship and attention to detail ensure high-quality results that meet and exceed client expectations. I specialize in custom woodwork, from intricate designs to functional spaces , and I am dedicated to delivering solutions tailored to your specific needs. Let's bring your vision to life! All work completed comes with a guarantee.
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WindowKwik Ltd
No reviews yet
Extension Builder in Dumbarton
Windows & Doors
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TR Property Services
Rating: 4.6 out of 5
Extension Builder in Dumbarton
All your home improvements covered! 🏡 All Joinery work covered. Kitchens n Bathrooms - Garage Conversions - Windows n Doors - Fencing n Decking - Garden Rooms - Extensions 🔨 Get in touch now 📱 All work carried out by competent tradesmen.
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Latest review:
Extensions- 10 Apr 2026
We are really pleased with the finished result. Despite a little delay with the plumber the finished work is of an extremely high standard. Alex, Cameron and Sean were total professionals and nothing was too much trouble . They were friendly, efficient and very helpful- so much so that they are now refitting our full kitchen. Update after living with kitchen- problem with oven so called engineer the microwave was on a shelf on top of the oven with nothing holding it up causing damage to the oven's fan. Nearly voided warranty. Other little niggles not finished to complete satisfaction and they never came to take rubbish away.
Everlight services Ltd
New on MyBuilder
Extension Builder in Dumbarton
Everlight services is a company that delivers all round building services and have 8+ years of experience in domestic and commercial work mostly in joinery but general contractors that have many people to help we are based in Glasgow but will travel outside of to help anyone looking to get that job done right and at a fair price !
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Alex Kuper
No reviews yet
Extension Builder in Dumbarton
General Builder with 40 years expirience. Allways happy to discuss challeging projects.
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Stephen Heron
No reviews yet
Extension Builder in Dumbarton
Heron Projects can take on your Glasgow based projects in a reliable and efficient manner. We specialise in high end carpentry and joinery work, taking on bigger projects such as attic and garage conversions, renovations, remodelling jobs, etc. With years of experience in bespoke work, we can also take on kitchens, doors, panelling, flooring with confidence. Heron Projects is also a main contractor for some major companies up and down the UK so you can rest assured you are in good hands. Our philosophy centres on architectural longevity, delivering bespoke craftsmanship designed to transcend passing fads and stand the test of time. Get in touch and get your free quote today.
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Build Right
Rating: 5 out of 5
Extension Builder in Dumbarton
Jobs range from large extensions to small home improvements such as doors and laminate floors.
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Latest review:
Restoration & Refurbishment- 30 Apr 2025
Started with a kitchen from 1926 that had only a poor modernisation in 1981. Original Plaster needed improving, and many more gremlins....but.... Build Right fitted the new kitchen and did a massive amount of prep work, improvements and finish to an extremely high standard. definitely recommend!
PR Plant (Scotland) Ltd.
No reviews yet
Extension Builder in Dumbarton
We have vast amounts of experience within our business from landscaping to full house builds to entire housing schemes or commercial and retail new build properties, as the saying goes no job is too big or too small for us We hope to build long lasting relationships with our potential clients treating their project as if it were one of our own builds. This way we can ensure quality is at an absolute max by ensuring all our operatives are completely invested and immersed into your project!
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AB Joinery Services
Rating: 5 out of 5
Extension Builder in Dumbarton
22 years experience in carpentry, joinery, kitchen fitting, groundworks, general maintenance, bespoke wardrobes
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Latest review:
Handyman- 3 Aug 2019
Alan came exactly on time and was friendly and did an amazing job. He went above and beyond to make sure our tv was secure and safe on the wall and we will be hiring him again for other joinery work we need done.
Trebor
No reviews yet
Extension Builder in Dumbarton
Fully experienced in all aspects of joinery. Even if its just for advice give me a call
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Bavent International LTD
No reviews yet
Extension Builder in Dumbarton
My name is David and I’m an experienced cleaner and handyman offering reliable, high-quality services for both residential and commercial clients. With 3 years of hands-on experience, I specialize in: General and deep cleaning End-of-tenancy cleaning Small repairs and maintenance Painting and decorating Furniture assembly Basic plumbing and electrical fixes I take pride in being thorough, efficient, and trustworthy, always aiming to leave every space spotless and every job done right the first time. Whether you need a one-time job or regular maintenance, I’m here to help. Feel free to get in touch I’d be happy to discuss how I can assist you!
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GCS Precision Projects Ltd
Rating: 5 out of 5
Extension Builder in Dumbarton
We are Civil Engineering and Building firm based in Ayrshire who carry out projects of all sizes throughout Scotland. We have a vastly experienced team who have a track record of carrying out quality, cost-effective projects within time and budget.
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Latest review:
Landscaping- 23 Apr 2026
Absolutely fantastic professionalism from Gary, Chloe and their team of workmen. Excellent communication, punctual and no pressure approach. Excellent turn around time with confirmation of quote to starting work on our garden. Delighted and highly impressed with our progress and experience so far.
Mark Odonnell joiner
No reviews yet
Extension Builder in Dumbarton
With over 35 years experience I provide friendly reliable service to a high standard and have other tradesmen that I can rely upon to leave the customer happy
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Top rated Extension Builders

Our Extension Builders in Dumbarton, are rated 5 out of 5 based on 3 reviews from customers like you.

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Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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

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

What are the hourly rates of extension builders in Dumbarton?

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

Find extension builders in Dumbarton with MyBuilder

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

Step 2: Compare different extension builders in Dumbarton

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

Step 3: Hire Dumbarton extension builders with confidence

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

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

What to ask a Dumbarton extension builder before hiring?

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

An extension builder in Dumbarton 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 Dumbarton 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 Dumbarton?

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 Dumbarton 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 Dumbarton 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 Dumbarton

Can an extension builder in Dumbarton help with planning permission?

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

Many Dumbarton 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 Dumbarton help with materials and finishes?

Yes, most extension builders in Dumbarton 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.