Extension Builders in West Lothian

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

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

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 West Lothian

297 Results

Sort by:

RA Builder
Rating: 4.9 out of 5
Extension Builder in West Lothian
My company provides comprehensive construction services, starting from laying foundations, through renovations, extensions, and finishing with turnkey projects. What sets us apart? We approach each project individually, ensuring the highest standards of execution and the satisfaction of our clients. Our flexibility and versatility allow us to meet the most demanding challenges, making us a unique choice among the competition.
Get in touch
Latest review:
Fencing- 18 Oct 2025
Very fast and good service, fair price and well done job.
HGS Building Services
No reviews yet
Extension Builder in West Lothian
Hi I'm James , we are family ran business based in Edinburgh since 2009 although members of our team have been involved in the building industry for 50 years ,We offer an ALL TRADES service, specialise in Extensions, Renovations & Loft Conversions in Edinburgh & surrounding areas . We have a large portfolio of finished projects and are more than happy for you to speak to previous clients or visit some of our previous jobs . We offer a full management process from planning to completion. Thanks
Get in touch
William Matthew and Son
Rating: 4.9 out of 5
Extension Builder in West Lothian
Here at William Matthew and Son we go the extra mile to make sure YOU as the customer is 100 % satisfied with all aspects of our work. So for a fast and friendly service regarding any driveway renovations or landscaping, call us today. A family run business you can trust!!!
Get in touch
Latest review:
Driveways (Paved & Loose)- 22 Aug 2018
total rubbish so many mistakes did not complete any of the work that was wrong still no dropped kerb, score out of ten 4.5 says a lot does not keep to his word
Decked Out
No reviews yet
Extension Builder in West Lothian
Hi, We are Decked Out based in Airdrie and specialise in all aspects of Joinery work
Get in touch
Ecosse Building Solutions Ltd
No reviews yet
Extension Builder in West Lothian
We are a building company with 90 years combined experience in the building trade. We cover all aspects of the building industry. We can offer a complete service from Architectural drawings to completion of works including decoration . We do new build homes, home extensions, attic conversions, garage conversions ,landscape, fencing , bathrooms and kitchens
Get in touch
Gage Construction
Rating: 4.4 out of 5
Extension Builder in West Lothian
Extensions are our speciality, we also do new build. Garage and loft conversions Refurbs Property development Re-roofing ie. slating tiling flat roofs Design and build Drawing and design service
Get in touch
Latest review:
Extensions- 24 Jun 2024
Job was completed but not on time. Snagging list only partially finished. Despite dozens of phone calls and even driving to Hamilton no completion certificate was ever received.
Mm landscaping & groundworks
New on MyBuilder
Extension Builder in West Lothian
Hi we are an established landscaping company with 30 years experience in landscaping and groundworks specialising in driveways and all modular surfaces , slabbing , grasses , fencing decking , drainage and much much more
Get in touch
JAE brickwork
No reviews yet
Extension Builder in West Lothian
Hello I’ve been on the tools for 4-5 years now doing jobs from building houses to pointing walls and everything in between before I became a builder I was at college studying architecture and changed as I found a passion for the building trade. Every job I do is done to high standard.
Get in touch
LB Joinery
No reviews yet
Extension Builder in West Lothian
Hi we are a new business trying to start up but we have loads of experience in this business. So please get in touch for a free estimate. No job is to small or too big.
Get in touch
Finesse Joinery Manufacturing ltd
Rating: 5 out of 5
Extension Builder in West Lothian
We are Firstly a Joinery business and work with tradesmen for other trades such as plumbers, electricians and plasterers etc frequently that we trust not only as people but workmanship too so we have the advantage of making a customer's life easier as we do all organisation from the start of the the job to the very end. We pride ourselves on the part of the name "Finesse" as we are perfectionists.
Get in touch
Latest review:
Joinery & Cabinet Making- 3 May 2019
Needed some bespoke pieces of living room furniture/cabinets made. Its fair to say we are very, very happy with the end result. We had a overlying idea of what we wanted but Jim's professionalism was able to apply the little bits/advice to the designs that made the difference. The workmanship and attention to detail you cannot fault, the efforts to source the right materials and finishing ensured the final work looked great. Jim was always around or on the phone when we needed to speak to him, and when the team arrived to fit all were very knowledgeable, respectful and wanted to ensure a good job was completed. Inviting somebody new to make some major changes into your home is a big step, but I have a big belief that when I employ somebody it is through trust and ability, and I am glad to say all our beliefs and instincts were 110% correct. I would not hesitate to ask Jim and his Finesse team to do other works for me, along with his wider network of trade contacts, they would be welcomed back with a knowledge and certainty that a cracking and professional job would be done. There are a lot of decent companies & skilled individuals in the industry, but you wouldn't do yourself any harm in contacting Finesse Joinery if you need any works doing. Highly Recommended from myself & my wife.....
C MCPHERSON BUILDERS LIMITED
Rating: 5 out of 5
Extension Builder in West Lothian
We are a small family run business with over 30 years experience covering all works from small to large projects, covering all trades.
Get in touch
Latest review:
Extensions- 30 Apr 2019
Colin was a fantastic find! A great tradesman with his own professional team. He turned up on time and worked all the issues the build presented. I can highly recommend Colin and look forward to working with him on future projects.
Liam McShane
No reviews yet
Extension Builder in West Lothian
A trusted electrician with a friend who is a trusted joiner. Experienced in all trades. No job is too small and no job is too big we have a team for everything. Guaranteed my word that I do a great job and proof is shown before starting a job of jobs in past and honest reviews. Good honest man who’s main priority is a good finish on the job to then use the photos of your job for other work leads so you can be assured 100% goes into every part of the job.
Get in touch
ABCB CONSTRUCTION
No reviews yet
Extension Builder in West Lothian
Hello everyone We are new to MyBuilder, but we bring many years of solid experience in construction and renovations. We provide professional services in painting & decorating, bathroom fitting, flooring installation, fencing, and more — all carried out to the highest quality standards. We pride ourselves on reliability, attention to detail, and completing every project on time, exactly the way you want it.
Get in touch
FM10 Joinery
Rating: 5 out of 5
Extension Builder in West Lothian
Went through my apprenticeship with a company called John Dennis. After my 4 year apprenticeship i stayed with john dennis for a further 5 years, within this 9 years at john dennis i done the lot from new builds, renovation and extensions. Done work from private to council work 1st fix, 2nd fix. After 9 years went onto the new build, doing everything from kits, roughing out the houses and doing the 2nd fix. I have recently started up my own company and cover every aspect a joinery.
Get in touch
Latest review:
Carpentry- 11 Jun 2020
Craig was fantastic and professional. He completed the job both very quickly and to a very high standard. He took a terrible sketch that I made on a piece of paper and turned it into a fantastic fitted bookcase in a very awkward space with sloped ceilings. I would highly recommend.
Brikline builders Ltd
No reviews yet
Extension Builder in West Lothian
Hi we are a small family run business that has been in the trade for over 25 years we pride our self on great workmanship and great communication with customers from start to finish what ever the size of project we take on
Get in touch
Melville joinery & roofline
Rating: 5 out of 5
Extension Builder in West Lothian
Melville joinery & roofline is an independantly owned business in all aspects of joinery and building all our team are time served and fully insured ,Every installation is carried out to the highest standard where we provide a personal service insuring all our customers expectations are fully met. all jobs are gauranteed and will not be beaten on price or quality.
Get in touch
Latest review:
Carpentry- 31 Mar 2018
Very happy with the excellent job Ryan did fitting my loft ladder. Ryan completed the job to a very high standard and cleaned up after the job was completed. Would highly recommend Ryan’s work and will be using him again in the near future.

Top rated Extension Builders

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

Quality screening

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 West Lothian?

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 West Lothian 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 West Lothian who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in West Lothian?

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

Find extension builders in West Lothian with MyBuilder

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

Step 2: Compare different extension builders in West Lothian

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

Step 3: Hire West Lothian extension builders with confidence

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

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

What to ask a West Lothian extension builder before hiring?

Before hiring an extension builder in West Lothian or extension building company in West Lothian, 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 West Lothian?

An extension builder in West Lothian 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 West Lothian 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 West Lothian?

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 West Lothian 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 West Lothian 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 West Lothian

Can an extension builder in West Lothian help with planning permission?

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

Many West Lothian 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 West Lothian help with materials and finishes?

Yes, most extension builders in West Lothian 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.