Extension Builders in St Helens

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.7 (13 reviews)

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

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 St Helens

670 Results

Sort by:

Brickwork solutions ltd
No reviews yet
Extension Builder in St Helens
Welcome to Nutgrove Building Services At Nutgrove Building Services, we have over 30 years of experience delivering high-quality building work across St Helens and the North West. We specialise in house extensions, renovations, new builds, and all aspects of brickwork, providing reliable craftsmanship on every project, no matter the size. We pride ourselves on our honesty, professionalism, and commitment to customer satisfaction. When you choose Nutgrove Building Services, you can expect us to turn up on time, communicate clearly throughout your project, and complete every job to the highest standard. Whether you're looking to create more space with an extension, transform your home with a renovation, or build from the ground up, we're here to bring your vision to life with quality workmanship you can trust.
Get in touch
North West building and development limited
No reviews yet
Extension Builder in St Helens
Team of well experienced builders who cover all aspects of the project. Full design specification available on request. For larger jobs we can provide full plans with structural calculations. full planning application packages including submission to the council and building control support to take any stress away. BATHROOMS bathroom work's carried out, anything from a swap to full bathroom renovation, Hi spec with skilled plumbers, tilers and electricians- wet rooms -tiled or vinyl floor finish concealed toilets, concealed taps, free standing baths and wall hung sinks, LED strip lighting, shadow boarders. supply and fit or if preferred labour only. KITCHENS kitchens- full kitchen renovations supply and fit or labour only DEVELOPMENT Anything from a small extension up to a full new build, structural works- steel erecting, double story extension, wrap around open plan extensions, renovation, HMO specialists, design and build, commercial to domestic, bungalow dormer conversions, dormers conversions and hip to gable dormer conversions. floor screeding, wet and dry underfloor heating systems Free advise available on land purchases, TPO requirements, conservation area development full public liability insurance, contractors insurance up to 10million unfortunately only able to upload 20 photo's. lots more available and references from previous customers LINKED IN PAGE AVAILABLE ON REQUEST
Get in touch
Sherdley builders limited
No reviews yet
Extension Builder in St Helens
30 years experience in construction Completed 16 new build homes Large renovations Extensions with steelwork Loft conversions
Get in touch
JB Construction
Rating: 5 out of 5
Extension Builder in St Helens
JB Construction is a forward-thinking building company dedicated to turning ideas into reality. With a strong commitment to quality craftsmanship, reliability, and client satisfaction, we specialize in delivering tailored construction solutions for residential and commercial projects alike. From initial concept to final completion, our experienced team works closely with every client to ensure each project reflects their unique vision, needs, and standards.
Get in touch
Latest review:
Handyman- 27 May 2026
Can't fault the job or the service.
Gud Builders LTD
Rating: 5 out of 5
Extension Builder in St Helens
We are a small family run building firm. We carry out all aspects of building work from small to large projects. We have a very skilled team of professional workmen and have many recommendations
Get in touch
Latest review:
I had an old tiled roof replaced with a more modern metal roof and several walls where re pointed. Also a new drain was installed to help with rain water drainage and concreted in. The work was done to a high standard and in good time. Time keeping was good and can not fault them on turning up on time. I was also impressed with how tidy they kept the place after they had finished each day and when the job was done. I would highly recommended Patrick as from start to finish he was polite, very professional and did a very good job.
Matthew greenall
Rating: 5 out of 5
Extension Builder in St Helens
With 14 years of dedicated experience in the trade, I specialize in transforming homes through expert kitchen installations and comprehensive secondary carpentry. From meticulous fitting to detailed finishing, I bring precision and quality to every project. My services extend across all aspects of secondary carpentry, ensuring a cohesive and refined look for your space. Based in Wigan, I am available for projects throughout the UK, committed to delivering exceptional craftsmanship wherever you are.
Get in touch
Latest review:
Extensions- 16 Dec 2025
Apart from the weather causing a few delay's, I have to say the communication was excellent also the work carried out was excellent too. A friendly easy to talk to approach. I’m very happy so far and currently waiting for him to give me some more quotes for future work. I would definitely hire again and recommend.
MD Properties
Rating: 5 out of 5
Extension Builder in St Helens
MD Properties / M&M Property Solutions Garage Conversion Specialists We have completed over 50 garage conversions over the last 7 years. Numerous examples of previous works can be provided upon request. Free survey and quote We also offer a full range of building services to include extensions, knock through’s / RSJ installation, kitchen fitting, summer houses and sheds and full property refurbs.
Get in touch
Latest review:
Restoration & Refurbishment- 16 May 2025
Fantastic team and done an truly outstanding job 👏
Mr l p wignall
Rating: 5 out of 5
Extension Builder in St Helens
I’m a bricklayer by trade, company director for 7 years focusing solemn on brickwork & construction. Experience for 26 years in construction and house building. I am trained in construction and civil engineering. Cscs accredited.
Get in touch
Latest review:
Bricklaying- 13 Dec 2025
Liam and his team did a brilliant job on my garage. Looks better than I ever expected. Good price, excellent workmanship and good communication. I am already planning to hire the team for more jobs. Couldn’t be happier. Jenny
Collins Construction North West
Rating: 5 out of 5
Extension Builder in St Helens
With over 20 years experience we specialise in home extensions, loft and garage conversions and all aspects of groundworks, landscaping and patios.
Get in touch
Latest review:
Extensions- 18 Dec 2021
Gets on with the job...easy to talk to ..good team of lads ..takes on all logistics and does not mess around
Damon Broadhurst
Rating: 5 out of 5
Extension Builder in St Helens
All types of brickwork extensions to garden walls , paving and fencing and also tiling undertaken
Get in touch
Latest review:
Bricklaying- 22 Sep 2021
Damon did an excellent job. Timely and efficient. Spot on!
JBC Building Services
Rating: 5 out of 5
Extension Builder in St Helens
Hi my name is Jim, after 27 years of working in the industry.I set up JBC Building Services and have been trading successfully for the last 15 years we have many happy customers and are looking to expand are customer base whether for domestic or commercial works. We are a caring family orientated company whose unique selling point is customer service and satisfaction.We will carryout small works or large works nothing is a problem we are happy to quote without obligation at a time to suit yourselves.
Get in touch
Latest review:
Plumbing- 28 Apr 2025
Really good, reasonably priced efficient, gave really good advice, would definitely recommend Jimmy
mc practical building
Rating: 5 out of 5
Extension Builder in St Helens
I have been a craftsman bricklayer for nearly 40 years ,no job to big all jobs done are to high standards and price given is final unless client wants more . all clients will know what there paying for including materials so no hidden chargers ,always fair with prices . just to add cscs gold card holder till 2026. my daughter emma coyle as done 3rd year C.I.T.B course .handy experience in putting up sheds , flat pack products no problem and most diy problems . Thanks for reading
Get in touch
Latest review:
Michael fitted a vent for our tumble dryer through the garage wall. He was on time and completed a tidy job at a reasonable price. I would recommend him and hire him again.
KB Kitchens&Bathrooms
Rating: 4.9 out of 5
Extension Builder in St Helens
All building work
Get in touch
Latest review:
Bathroom Fitting- 30 Dec 2021
Excellent! Started quickly. Went out his way to meet deadlines. Gave a total price for job and provided quality products. Hired again for the kitchen👍
Kco
No reviews yet
Extension Builder in St Helens
Hi I am a Time served Carpenter and Joiner 42 years in the trade.i have also trained as a locksmith .I can turn my hand to most tasks plumbing ect . I never quite like to work out complex issues. During Lock down I built 4 one bedroom apartments my self from foundations to handing the keys over after sale. I love my job and get real satisfaction completing tasks to a very professional standard.
Get in touch
Britbrickwork
Rating: 5 out of 5
Extension Builder in St Helens
A family buisness that has been around for over 25 years We take pride in our standard of workmanship With top class trades We can do new builds, extension small and large, garages, garden walls, concrete slabs, driveways, drainage
Get in touch
Latest review:
Repointing- 20 Mar 2022
Showed up on time, good communication, friendly. Left contact details for afterwards should we need to follow up. Didn't try to upsell us or worry us. Would recommend! Thanks a lot.
Bromps group ltd
Rating: 5 out of 5
Extension Builder in St Helens
At Bromps Property Services we undertake all aspects of building/construction/refurbishment works. Having all trades under one roof we deliver High level project management and customer service from project start to finish.
Get in touch
Latest review:
Plastering- 9 Nov 2022
Excellent service, plastering work is perfect and the plasterers were 100% reliable,

4.7

Top rated Extension Builders

Our Extension Builders in St Helens, are rated 4.7 out of 5 based on 13 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 St Helens?

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 St Helens 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 St Helens who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in St Helens?

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

Find extension builders in St Helens with MyBuilder

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

Step 2: Compare different extension builders in St Helens

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

Step 3: Hire St Helens extension builders with confidence

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

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

What to ask a St Helens extension builder before hiring?

Before hiring an extension builder in St Helens or extension building company in St Helens, 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 St Helens?

An extension builder in St Helens 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 St Helens 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 St Helens?

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 St Helens 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 St Helens 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 St Helens

Can an extension builder in St Helens help with planning permission?

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

Many St Helens 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 St Helens help with materials and finishes?

Yes, most extension builders in St Helens 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.