Extension Builders in Renfrew

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

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Some of our top rated extension builders in Renfrew

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Tony
Rating: 4.8 out of 5
Extension Builder in Renfrew
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
Lewis Building Ltd
Rating: 3.7 out of 5
Extension Builder in Renfrew
Member of the Federation of Master Builders. Fully Insured, Professional Reliable Service.
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Latest review:
We hired Lewis Building Ltd to remove an internal wall, rearrange our kitchen, fit bi-fold and patio doors, and make changes to other internal/external doors. The quote we were given was clear and concise and detailed all the work required and what it would cost. Initially, we were pleased with the structural work that was carried out but when it came to fitting the doors and the finishing of our kitchen we found the work to be sub-standard. Thomas then added extra costs onto the original quote for work that had not been agreed. When we questioned him about this he failed to return to complete the job. I have text, phoned and emailed and not had a reply. All work that was carried out was paid for so he does not have any incentive to return and finish or correct our job. I have taken extensive photographs of the finish left by Lewis Building Ltd, including gaps in the external doors, coving falling off the wall and large gaps in mitres. I even had to contact the skip company to have the skip removed as it was still in our driveway 4 weeks after Thomas failed to get back in touch with us. If you do intend to use these builders for work then be warned of extra costs added, not turning up when arranged, poor finishing, constant cleaning up after they have been and the potential of walking off the job.
KBM JOINERY AND BUILDING LTD.
Rating: 5 out of 5
Extension Builder in Renfrew
KBM JOINERY AND BUILDING provide an all-around multi trade service working in conjunction with our Electricians ,plastering team, brickies and plumber we strive to leave only the very best work behind us .
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Latest review:
Bricklaying- 12 May 2024
We were looking to have New front door steps and handrail rebuilt and renewed .. From first phone call to job complete both Kieran & Fraser we’re polite & on time to give a quote , we agreed a price and time to start job & once again they both arrived at the time they said. Great workers tidying up before they left .we had a bit of a wait to get job complete due to the company that we were getting a handrail from but Kieran kept us informed & we were in no rush so all was good with us .. we couldn’t be more happy with end result & highly recommend these two very professional guys , I may look to see what else I can get them to do for us 🤣
Platine Construction Ltd.
Rating: 5 out of 5
Extension Builder in Renfrew
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.
S&h builders limited
Rating: 5 out of 5
Extension Builder in Renfrew
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 Renfrew
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.
Hood
Rating: 4 out of 5
Extension Builder in Renfrew
Hood is a trusted, family-run building firm with over 29 years of experience specializing in high-quality home extensions, loft conversions, and renovations. We pride ourselves on attention to detail, clear communication, and delivering projects on time and within budget. From design to completion, we work closely with you to transform your property. Fully insured and registered. From small jobs to larger projects we have the experience and ability to carry out your project.
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Avor Contracts Ltd
Rating: 5 out of 5
Extension Builder in Renfrew
We are an all trades construction company serving Scotland. Typically working on residential extension projects providing an all trades, fully managed service, we have both directly employed and sub contract tradesmen, all of whom are vetted, qualified and certified. Both our project managers have over 20 years experience & knowledge of building practices throughout various sectors, this enables us to deliver a comprehensive and cost effective package tailored around our clients needs.
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Latest review:
Extensions- 18 Feb 2021
Michael and Neil did a fantastic job with our large 2-story extension. I would happily recommend them for any building work. Our build was not straight forward and the brothers displayed skill, experience and patience when extending alongside a building built in the 1800s. They were professional throughout the whole process as well as very hardworking, punctual and even working weekends to get the job finished for us as soon as possible. We had many changes along the way that differed from the original drawings to which they were more than accommodating and provided competitive prices. As the construction was being held during the Covid pandemic the brothers kept us duly informed throughout with any supply or material delays alleviating any worries we had.
Aj unique polished surfaces
Rating: 4.4 out of 5
Extension Builder in Renfrew
We specialise in Venetian and micro cement plasters and finishes. We also do general building and joinery works such as but not limited to Plastering internally and externally Kitchen and bathroom refurbished Decking and fencing Home renovation Supply and fit contractor able to start projects and bring them to a complete finish
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Latest review:
Plastering- 10 Jun 2026
Done a terrible job job delayed work. Waste of money paid. Increase price half way through job. All walls corner cracked up did not remove skirting board and lights and sockets as promised made lots of mess in the garden left lots of rubbish. Could not get hold of him caused alot of fake promise to complete the job at the end left a job promised to do did not prioritise made mistake paid all money trusting. Still has my house key I have now had to bring someone else to fix his mess which left
Labyrinth Construction Limited
Rating: 5 out of 5
Extension Builder in Renfrew
At Labyrinth, with our unique perspective we provide clients with a high end product for a realistic budget whatever the project. We achieve this with a network of approved suppliers and experienced site management. Here at Labyrinth we believe that we really can offer a better service to clients.
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Latest review:
Stephen built a three bedroom detached house in the grounds of my old house. It was done to an excellent standard - even down to the door handles and the doors. He designed the whole thing and got the maximum efficiency without disturbing the quality. The downstairs is open plan and he worked on getting equipment with reduced noise levels. He was instrumental in getting the plumber and electricians organised and I didn't have to worry about a thing. His communications were excellent and he would come back to me within ten minutes and would organise everything to make sure they ran efficiently. I am delighted with the work and he also took any problems with regard to connecting the services away from me. I would certainly recommend him - there was not a fault or a failing. If have another rebuild done I would use Stephen because he was capable of doing everything with regard to the build - from architects onwards. He would be able to overcome any problems with the architects and he could resolve any problems for me. It is absolutely fabulous and everything has worked out perfectly. I have nothing but praise for Stephen Hambly.
S & G Joiners Ltd
Rating: 5 out of 5
Extension Builder in Renfrew
Glasgow based Joinery company that do all aspects of Joinery work
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Latest review:
Joinery & Cabinet Making- 4 Apr 2022
Decent price quoted. Good communication. Job done well and in time. Would use again.
KLF Electrical and Home Improvement Services
Rating: 5 out of 5
Extension Builder in Renfrew
Niceic approved contractor Here at KLF Electrical electrical services we aim to deliver the best standard of work to make sure the customer is always happy with the works carried out. With many years experience in the industry this has led to having a good reputation for supplying the best service and great workmanship. We are reliable flexible to suit your schedule
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Latest review:
Electrical- 16 Apr 2018
Martyn and his team carried out a spotlight installation in our dining room and did a fanstastic job. From the start Martyn was polite, stayed in contact regularly and carried out the work when I was free, his quote was very reasonable and he arrived when he said he would. He also answered any questions I had about the job needing done. I would recommend.
DH JOINERY
Rating: 5 out of 5
Extension Builder in Renfrew
Local joiner with over 10 years experience in the trade. Kitchen and bathroom specialist. Also carry out general joinery work, including windows/doors/conversions etc.
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Latest review:
Kitchen Fitting- 10 Feb 2026
Declan arrived on time did a wonderful job of my kitchen nothing was to much trouble for him he was friendly professional and cleaned up after himself.would highly recommended DH joiner.Thank you Audrey .
Port Charlotte Homes Ltd
Rating: 3.7 out of 5
Extension Builder in Renfrew
Port Charlotte Homes Ltd is a registered limited company delivering professional services to the highest standards. We specialise in residential developments, renovatkion, conversion, extension and new-build projects. Established in 2004, the company is led by a qualified Architect and registered Project Manager, bringing extensive expertise across a wide range of construction projects. Our core objective is to successfully achieve every project’s key goals: quality, budget control, and agreed timescales. In addition, we provide full architectural services through our sister company, Unicorn Architecture, offering a comprehensive and integrated approach from concept to completion.
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Latest review:
Architecture- 20 Jan 2019
Sirus has delivered as promised to draw up plans and obtain building warrant for my project. I trust Sirus to deliver.
Chira Emanuel David
No reviews yet
Extension Builder in Renfrew
Joiner
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JPC GROUNDWORKS
Rating: 4.9 out of 5
Extension Builder in Renfrew
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.

Top rated Extension Builders

Our Extension Builders in Renfrew, 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 Renfrew?

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

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

What are the hourly rates of extension builders in Renfrew?

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

Find extension builders in Renfrew with MyBuilder

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

Step 2: Compare different extension builders in Renfrew

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

Step 3: Hire Renfrew extension builders with confidence

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

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

What to ask a Renfrew extension builder before hiring?

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

An extension builder in Renfrew 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 Renfrew 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 Renfrew?

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 Renfrew 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 Renfrew 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 Renfrew

Can an extension builder in Renfrew help with planning permission?

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

Many Renfrew 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 Renfrew help with materials and finishes?

Yes, most extension builders in Renfrew 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.