Extension Builders in St Helens

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

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Some of our top rated extension builders in St Helens

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Rainford Building Services
Rating: 5 out of 5
Extension Builder in St Helens
We cover all your building needs, our teams are fully qualified from management through to skilled trades, a complete "in house" building solution. We provide a diverse range of skilled works, from steel fabrication and remodelling knock through works to Garage / Barn Conversions and Bespoke Garden Rooms. We take on all types of jobs from small domestic work to larger commercial projects, all carried out to the highest standards and at a fair price. New to this platform so apologies for not many reviews, I have plenty, just not on here as yet. Based in Rainford, St Helens. We cover the wider North West area, from Manchester to Liverpool and Chester to Preston.
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Latest review:
Conversions - General- 3 Apr 2025
Excellent communication from Mark all the way through the job, job done to very good standard, good price and will definitely use Mark again.
Hybrid Builders
Rating: 5 out of 5
Extension Builder in St Helens
Hi, I’m Darren - a skilled builder with over 20 years of hands-on experience, currently serving the Wigan area and beyond. I’ve worked on a wide range of projects and have a strong grasp of all aspects of building work, including electrics, plumbing, joinery, plastering and structural alterations. Whatever the job, there’s a good chance I can get it done. I’m known for being reliable, approachable, and easy to work with (and I brew a mean cup of tea too). When I’m not on the tools, you’ll likely find me out kayaking or riding the waves on my jet ski. If you have a project in mind or simply a few questions, don’t hesitate to reach out - I’m always happy to chat. Looking forward to hearing from you, Darren
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Latest review:
Darren and the Hybrids team recently repaired a leaking roof at the front of my property. They worked efficiently and completed the job promptly, keeping me updated every step of the way. The leak in my bedroom has finally been resolved, I would definitely recommend the Hybrids!
M A building and joinery
Rating: 5 out of 5
Extension Builder in St Helens
Our team consists of a double act with over 25 years experience in all jobs from small too big. I can guarantee top quality work at reasonable prices. (All general building work)
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Latest review:
Roofing (Pitched)- 3 Oct 2024
After being let down by several builders over a few months we search for someone to step in at late notice. Michael called and said he would like to give us a quote gave us a time and was there when he said. After telling him our situation he was very accommodating and got us in. He turned up every day when he said he would and always took his rubbish with him. The canopy we ordered looks absolutely amazing and I could not have asked for better the workmanship is second to none he even got on with my dog which is always a bonus. 10/10 for the company will definitely use them again if we need more building work done.
Majestic Living Space Limited
Rating: 5 out of 5
Extension Builder in St Helens
Hi my name is Jake. I have been working in the building trade for 17 years as a bricklayer/ stone mason. I cover all aspects of building work varying from new builds from scratch to garden & driveway renovations. I am also available for paving work etc. If you would like to see any examples of work please get in touch. (Valid CSCS card level 3 and driving license) Thanks
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Latest review:
Bricklaying- 23 Mar 2024
Job done really quick despite the bad weather. Came next day to finish and attach the front gate.. My brother as autism so his needs was met very well.
Dulson Building Services
Rating: 5 out of 5
Extension Builder in St Helens
Established 2002, all general building and landscaping work undertaken in the Widnes and surrounding areas. Property maintenance, repair and renovation, including full extensions, conversions, kitchen and bathroom installation, plastering, brickwork. Landscaping including block paving, decking, patios and tree pruning/felling.
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Latest review:
Bathroom Fitting- 6 Feb 2019
Ian was a very reliable workman who worked solidly at the tasks in hand. He was polite and throughout the work kept us up to date with what he was doing. His work was of high standard and the finished job was excellent I would hire him again if I needed another job doing and recommend him a a hardworking trustworthy workman.
axis building & maintenance limited
Rating: 5 out of 5
Extension Builder in St Helens
At Axis Building & Maintenance Ltd we are a reputable company based in Liverpool that specialises in providing top-notch building services. With a commitment to excellence and a wealth of experience in the industry, we have established ourselves as a trusted name in the construction and maintenance industry. We cover everything from building extensions to roofing, plastering, flooring & general maintenance across Merseyside. Covering both commercial & domestic properties.
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Latest review:
Carpets & Lino- 7 Feb 2026
Absolutely brilliant job completed by Dave. His work is amazing and he was very attentive to detail, polite and very respectful of our property iwould not hesitate to recommend him to family and friends
Firmbuilders
Rating: 5 out of 5
Extension Builder in St Helens
😃😃 hi there am Karl owner of firmbuilders thank you for having time to ready my profile most appreciated 👍 …we specialise in all types of building works ,,we treat every project as are own from start to finish ,we have great ideas and allways there to help only a call or texted away , we have great workman ship ,we are very easy going , , very highly qualified if each trade we give free friendly advice, we are fully insured, all work is guaranteed on every project we are one of the best companies around ✔️✔️ 🤝🤝🤝 look forward to hearing from you .....
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Latest review:
Extensions- 13 May 2018
Karl and his lads completed a one storey extension across the full back of the house, including knock down and removal of conservatory and knock through from current kitchen. Karl is reliable, friendly and easy to work with and his lads were fantastic! The Build took longer than we had thought due to the bad weather earlier this year but Karl kept in touch throughout the build so that we knew what was happening. Karl’s quote was well priced and he kept to that price - putting right the damage by the digger to our fence/gate at his own cost and to a really good standard. We are delighted with our extension and would definitely use Karl and his lads again for any future work.
L. Hall Brickwork & Building Services
Rating: 5 out of 5
Extension Builder in St Helens
I am a bricklayer with over 10 years experience in many aspects of building and landscaping. I take great pride in my work, keep my work place as clean as possible and always leave a happy customer . I am a small company so very competitive on prices but quality is no comprise
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Latest review:
Bricklaying- 10 Mar 2017
LEE DID AN EXCELLENT JOB IN MY BACK GARDEN.HE FLAGGED A LARGE PATIO AREA AND BUILT SOME LOVELY STEPS FOR ME.HE IS METICULOUS IN ALL ASPECTS OF HIS WORK .LEE AND DANNY WORKED VERY HARD FROM START TO FINISH ON THE JOB I ASKED HIM TO DO. HE IS VERY GOOD ON HIS PRICE QUOTE AND STICKS TO THE QUOTE HE GIVES YOU .HE IS A VERY TIDY WORK MAN AND LEAVES EVERYTHING NEAT AND TIDY EVERY DAY.I AM VERY PLEASED WITH HIS WORKMANSHIP HE IS HIGHLY KNOWLEDGEABLE IN EVERY THING HE DOES. I WOULD HIGHLY RECOMMEND LEE TO ANYONE THINKING OF HAVING ANY WORK DONE.
Castle home improvements
Rating: 4.6 out of 5
Extension Builder in St Helens
Profession service to home owners . Planning Application, Building Regs . FREE DESIGN SERVICE AND QUOTATION Porches ,extensions , Loft conversion Conservatories Etc etc
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Latest review:
Handyman- 24 Jan 2025
Initially good but attitude changed second day although I gave him but he asked. Didn’t make clear the cost of additional jobs.
R.L Joinery & Building Ltd
Rating: 5 out of 5
Extension Builder in St Helens
At R.L Joinery & Building Ltd you can expect a friendly and trustworthy service with competitive quotes. We are highly experienced in Construction, Renovation , Repairs, Maintenance, Project Management and Construction Consultancy and provide our services to Developers, Investors, Property Managers and Homeowners
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Latest review:
Extensions- 16 Apr 2019
Good job done by a good team,always on time and really friendly,will be using them again.
Keel renovations ltd
Rating: 5 out of 5
Extension Builder in St Helens
Keel renovations have been providing professional building services in the Liverpool, Merseyside and surrounding areas. With over 20 years experience, our team can transform your existing property into something special, that is finished to the highest standards. We always aim to be efficient and clean, with minimum disruption to you during the whole process of the project. Instagram :keel_renovations
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Latest review:
Plastering- 24 Mar 2026
Amazing job plastering over artex ceilings and very thick artex walls. Reasonably priced for high standard of work. Will definitely use again. Thank you so much Lee.
TJ JOINERY LIMITED
Rating: 5 out of 5
Extension Builder in St Helens
We are a small professional company who specialise in all aspects of joinery and refurbishments. Reliable and flexible to meet needs and requirements with a keen eye for detail, guaranteeing quality work to ensure customer satisfaction. Fully insured and crb cleared. Free quotes with no obligation
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Latest review:
Carpentry- 4 Apr 2016
T.J Joinery did everything I asked and will be using again on my other projects.
Unique brickwork & construction
Rating: 5 out of 5
Extension Builder in St Helens
Hi. I’m an advanced builder with 17years of experience behind me. I have a very good trusty team in place. Fully insured Fully Reliable Clean and tidy workmanship
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Latest review:
Groundwork & Foundations- 6 Mar 2023
Good quality work as planned.
JDT Property Services
Rating: 5 out of 5
Extension Builder in St Helens
Now part of UK Pro Build Ltd, we specialise in the Domestic Market, specifically Home Extensions, Loft/Garage Conversions and New Builds. We're VAT Registered, Insured and 'CDM' Qualified so we can manage every aspect of your project with the minimum of fuss. UK Pro Build, Built on Reputation
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Latest review:
Guttering- 1 Nov 2019
John arrived when he said he would, gave a competitive price and did not take the money until job completed. I would be happy to have John take on other jobs
Poseidon Damp NW
Rating: 5 out of 5
Extension Builder in St Helens
Upto 20 years experience working within the building industry specialising in all aspects of damp proofing within homes and businesses. Available within 10 miles from Liverpool area 7 days a week 24 hours a day. All work is carried out in a professional, competent manner along with honest reliable service catered to your needs.
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Latest review:
Had damp course done throughout ground floor and plastering in bedroom. The team were professional,tidy and completed the job on time to a high standard and left it tidy. After getting 3 other quotes and this one being the highest quote i am happy i paid the extra as it was done to my expectations,on time and money well spent.
N&J Brickwork
Rating: 4.8 out of 5
Extension Builder in St Helens
Local Tradesman Serving Local People Time served Bricklayer with 11 years experience in the industry. I have golden trowel with David Wilson Homes I have taken great pride in providing a clean and safe environment in which myself, work associates, and customers feel able to be happy with, so as to provide a first class service, specialising in; **##New Builds, Small Extensions, Garden walls, sheds/Outhouse, Garages, Garage conversions, Chimney removal, Demolition **##
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Latest review:
Bricklaying- 17 Aug 2025
Job completed to high standard. Thanks.

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.

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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.