Extension Builders in Johnstone

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

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Some of our top rated extension builders in Johnstone

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Jaco builders & joiners ltd
No reviews yet
Extension Builder in Johnstone
I am time served joiner / shop fitter that has been working in the trade for over 30 years Extensions are what I have been doing for at least 20 years due to being closer to home Tske great pride in my work. Have plenty of recommendations of work I have done to contact if needed
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Joint Effort Masonry Ltd
Rating: 4.9 out of 5
Extension Builder in Johnstone
Joint Effort Masonry Ltd, stone masonry company based in Glasgow. Time served stonemasons undertaking all types of building work e.g new build or restoration, stone, brickwork or block. Experienced stone cutters and carvers.
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Latest review:
Stonemasonry- 15 Jun 2025
Finished job well at reasonable cost would use him again
YOUR DECORATOR GLASGOW
Rating: 5 out of 5
Extension Builder in Johnstone
Hello. My name's Adam and I'm the owner of Your Decorator Glasgow. We are a family operated business.All jobs are always done by us and we never use any subcontractors. We take pride in achieving an excellent finish for all of our clients as on the end of the day they are the most imoprtant part of our business.
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Latest review:
Painting & Decorating- 4 Apr 2025
Adam did an excellent job for us. Would strongly recommend.
Chcs better build
No reviews yet
Extension Builder in Johnstone
Hello my name is Stephen, 20 years service to this trade, new to my builder. Any aspect of Joinery work can be undertaken, look forward to acquiring new clients and friends
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C Hanlon Limited
Rating: 5 out of 5
Extension Builder in Johnstone
C Hanlon are an all trades company with specialist divisions including Plumbing, Electrical, Heating, Drainage, Roofing, Building, Gas Services, Insurance Services, Medical Adaptations and Pest Control. We work for both the commercial and domestic marketplace covering West and Central Scotland from our base on Thornliebank, Glasgow. We have over 150 highly skilled tradesmen with an office support network to ensure a smooth job from start to finish.
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Latest review:
Electrical- 23 May 2019
C Hanlon have just completed the full rewire of the property and I am more than delighted with the quality of workmanship. Mark came out and surveyed / priced the job last week and whilst it was not the cheapest quote that I had, I progressed based on the fact that they were a local company who were able to start immediately and complete it quickly to a high standard. The job took only 2 days to complete and John, the Electrical Manager kept me fully informed throughout. I would have no hesitation on using C Hanlon again or recommending them to friends or family.
Noah
Rating: 3.8 out of 5
Extension Builder in Johnstone
I’m happy when my client happy
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Latest review:
Handyman- 26 Sep 2024
A extendable curtain pole to put up. There was a problem with the actual pole, manufacturing problem. Put up the three brackets and I will purchase a new pole and fit myself. Initially he said only one screw was enough for the three brackets but I insisted two screws for bracket, he didn’t centre the middle bracket and used a pencil for a measurement, I suggested a measuring tape. Wrong type of screws and missing plasterboard fixings and when the pole was installed the middle bracket started to fall off, so I had to get someone to fix it. He did two fixings of two vertical blinds and they were fine
Carton Developments Ltd
No reviews yet
Extension Builder in Johnstone
With over 17 years of experience in the Construction industry, we specialise in commercial and residential construction. Our team of experts has experience in all aspects of construction, from planning and design to execution and commercial management. We are committed to delivering high-quality projects that exceed our clients' expectations. Our values of integrity, honesty, and transparency guide our decision-making and ensure that we maintain strong relationships with our clients and partners. We use a collaborative approach to project management, working closely with our clients to understand their needs and goals. We believe in clear communication, accurate budgeting, and timely delivery, which has helped us to build a strong reputation in the industry. We pride ourselves in being able to offer the highest quality of workmanship to any size of job. We have seasoned professionals able to deliver Renovations, Refurbishments, Home Improvements, Groundworks and much more
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John Hewitson
Rating: 4 out of 5
Extension Builder in Johnstone
Decorator
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Latest review:
Painting & Decorating- 1 Sep 2024
The job went well. He worked very hard and did a good job
Platine Construction Ltd.
Rating: 5 out of 5
Extension Builder in Johnstone
We specialise in bathroom and kitchen construction, including new installations and full renovations, and bring over 15 years of experience to every project. We provide a fully managed service from initial survey and design through to final handover, delivered by our in-house skilled trades team. Our services include site surveys, layout planning, 3D design and visualisation, strip-out works, plumbing, electrical works, waterproofing and tanking, tiling, flooring, wall finishes, installation of sanitary ware, kitchen units and appliances, and final testing and snagging. We are committed to delivering the agreed scope in line with the specified quality, workmanship, and programme. All works are covered by a Defects Liability Period, during which any workmanship-related defects are rectified promptly at no additional cost, subject to agreed terms.
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Latest review:
Platine Construction Ltd completed a full toilet renovation at my home, including new floor tiles, wash basin, toilet seat, bath, and shower. The quality of work was excellent, and the finish was neat and professional. Highly satisfied with their service.
Weir Contracts
Rating: 5 out of 5
Extension Builder in Johnstone
All types of Joinery work from building extensions to fitting kitchens. Also do maintenance work!
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Latest review:
Kitchen Fitting- 9 Aug 2023
Quality tradesman. Fitted our kitchen quickly and it looks great.
Tony
Rating: 4.8 out of 5
Extension Builder in Johnstone
We take on all general building works including framing,plaster boarding, curtains, painting & Decorations, wall papers, carpets , Lino , vinyl flooring , solid flooring flooring , luxury vinyl flooring , real wood flooring laminate flooring l General tiling ( bathroom, kitchen)all plumbing works bathroom , kitchen, all Gardens works , Electricity, Gas , renovations, decoration , Plasterworks , skimming and we provide all workmanship works in high standards with reasonable prices. All work guaranteed
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Latest review:
Handyman- 11 Jun 2026
Tony done a fantastic job of putting my extremely heavy &large mirror.up on the wall i found tony to be very polite and helpfull person
S&h builders limited
Rating: 5 out of 5
Extension Builder in Johnstone
Hello everyone i just joined this platform. we offer services of renovations,garage conversions,loft conversions and house extensions including fancy bathrooms kitchens,plastering,tv media walls electrical and gas work( heating system,combi and system boilers,water underfloor heating systems) Our motto is quality work and quality work is our passion, 14 years of experience in building trade
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Latest review:
Central Heating- 21 Dec 2022
Came out to quote to fix broken central heating and agreed price and Shahzad started work immediately and continued till it was complete at 10pm. Excellent commitment and quality of work including solving how to fix problem without lifting tiled floors. Highly recommended and will be using again for any plumbing/building work.
Alba Access
Rating: 5 out of 5
Extension Builder in Johnstone
Time served carpenter/joiner with 18 years experience on the tools. Vast range of trade skills covering all aspects of construction. Also specialise in working at height and fully qualified IRATA level 3.
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Latest review:
Carpentry- 12 Jun 2020
Steven had a nice manner, was professional and efficient. Would have no problem recommending him.
RRS Groundworks
No reviews yet
Extension Builder in Johnstone
Hello I’m Ross, We are a Groundworks company providing all aspects including foundations and drainage for house builds, extensions, site clearance and hard landscaping serving Glasgow and surrounding areas.
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JPC GROUNDWORKS
Rating: 4.9 out of 5
Extension Builder in Johnstone
My Business is about groundwork, I have over30 years experience in this field all types which include, driveways, patios, paths , walling. Fencing and decking, new lawns laid also artificial grass laid , drainage My business also undertakes foundations and drainage for extensions and new build houses with complete under build to DPC level
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Latest review:
Groundwork & Foundations- 29 Nov 2025
Joe has done a great job building a garden retention wall, backfill and general landscaping in established garden. Also hand dug water mains ditch replacing lead water pipe to latest reg requirements. Great communicator. Tidy and efficient work.
Peter Paterson
Rating: 5 out of 5
Extension Builder in Johnstone
My business has been established over the last 15 years working in the Glasgow area. I have been in the trade for 30 years carrying out plastering, roofing work and refurbishments. Very clean and tidy, no job is to small. As you can see from previous jobs i have only used this site a few times in quieter times, this is because i have been busy on other contracts as seen in photographs. Most of my work is word of mouth and working for architects
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Latest review:
Plastering- 16 Aug 2024
Great job, done at short notice, to a high standard and at a reasonable price. Good clean up / tidy. Thank you very much

Top rated Extension Builders

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

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

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

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

What are the hourly rates of extension builders in Johnstone?

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

Find extension builders in Johnstone with MyBuilder

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

Step 2: Compare different extension builders in Johnstone

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

Step 3: Hire Johnstone extension builders with confidence

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

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

What to ask a Johnstone extension builder before hiring?

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

An extension builder in Johnstone 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 Johnstone 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 Johnstone?

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 Johnstone 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 Johnstone 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 Johnstone

Can an extension builder in Johnstone help with planning permission?

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

Many Johnstone 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 Johnstone help with materials and finishes?

Yes, most extension builders in Johnstone 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.