Extension builders in Runcorn

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (10 reviews)

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Some of our top rated extension builders in Runcorn

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NB Construction
Rating: 5 out of 5
Extension Builder in Runcorn
Neil from NB Construction is a home builder, based in Altrincham. With 30 years of experience in the building trade, Neil can help to plan and execute your project from the ground up. If you have architect's drawings and / or planning permission, Neil can give you a quote for the work to be carried out. All work is carried out to local authority building regulations and the required gas / electrical certificates supplied when appropriate.
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Latest review:
As first time buyers we appreciated Neil’s experience with our kitchen-diner knock through, we would definitely use him again.
Flash construction
No reviews yet
Extension Builder in Runcorn
I have been in the building trade for 14 years and have experience in bricklaying, roofing, joinery and welding. I work in a team of three people and between us we cover most of the skills required in the construction industry.
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JDL Building Company
No reviews yet
Extension Builder in Runcorn
We are a building firm who have been working in the building trade for Many years ,we oversee home extensions from start to finish to a very high standard and pride ourselves on quality, cleanliness and punctuality, get in touch for free estimates and advice
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Brian Joseph Home & Garden Buildings
No reviews yet
Extension Builder in Runcorn
Brian Joseph Home & Garden Buildings is an all-round building and project management company based in the North West, with over 35 years' experience. We are a family-run business dedicated to providing you with a high-quality building service for every job.We have a wealth of knowledge that can help you with your building project, right from the initial drawings through to the finishing touches. We employ local tradesmen who are either personally known or by the highest recommendation.
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MKW Brickwork and Building services
Rating: 5 out of 5
Extension Builder in Runcorn
MKW are based in Leigh, Lancashire specialising in Extension’s,conversions, New builds and structural alterations. We have over 25 years experience in the building trade and take pride in our work. From a garden wall to a full new build we can help you every step of the way to create your desired plans.
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Latest review:
Matthew and his father did the bricklaying on a development of 5 houses. They completed the work in a professional, and workmanlike manner, and proved completely reliable.
Hancock Building Ltd
Rating: 5 out of 5
Extension Builder in Runcorn
Hancock Building Ltd undertake all building work, we specialise in extensions and new builds. Covering groundworks to walling and joinery to plastering. All work is carried out to the highest standard, and we are a professional and reliable company.
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Latest review:
Restoration & Refurbishment- 22 Jul 2019
Ric was very professional and was clean and tidy on the job he did a great job removing an internal wall and plastering up. He had great timekeeping, explained everything and did a great job at a good price. I can’t fault the service at all. I will definitely use him again in the future!
B & H brickwork
No reviews yet
Extension Builder in Runcorn
2 Bricklayers with 18 years experience between us, currently working on a building site building new builds. Looking to take on extra work such as extensions, garden walls, conservatory’s, porch’s. Will undertake all aspects of brickwork.
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Warrington windows and home improvements
No reviews yet
Extension Builder in Runcorn
45yrs in this area
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CFL Joinery & Construction
Rating: 5 out of 5
Extension Builder in Runcorn
CFL Joinery & Construction is led by a fully qualified Level 3 Site Joiner/Carpenter (City & Guilds) with many years of hands-on experience across the construction industry. We combine expert knowledge, precision craftsmanship, and a genuine commitment to delivering high-quality workmanship on every project. Due to continued demand from returning clients and recommendations, we have expanded our services to provide a wider range of building solutions. Alongside professional joinery, we can assist with general construction including electrical installation, plumbing and gas works, bricklaying, and other associated trades, offering clients a reliable one-stop solution for their project. All work is completed to a high professional standard with close attention to detail from start to finish. We aim to offer competitive and transparent pricing and can often improve on previous quotes without compromising on quality. We pride ourselves on being friendly, reliable, and approachable, and we always do our best to accommodate urgent or time-sensitive work wherever possible. For enquiries, advice, or quotations, please get in touch by phone or email. We are always happy to help and discuss your project.
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Latest review:
Carpentry- 16 Sep 2026
Arrived on time, very reliable company, competitive rate, would highly recommend. It’s the first time I have used CFL joinery and wouldn’t hesitate to use them again. They replaced my very squeaky uneven floor board on my landing and fitted panelling on the stairs along with a few other odd jobs. All completed on time in 2 days as they said they would. Thanks so much !
ERB DEVELOPMENT LTD
Rating: 5 out of 5
Extension Builder in Runcorn
Hi we are a family owned buisness. We undertake all aspects of groundworks. We cover Commercial and domestic works, Site work Driveways gardens Extentions Newbuild
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Latest review:
Groundwork & Foundations- 18 Apr 2023
Very impressed with Nathan and his team. Very prompt in responding and knowledgeable.They fitted a concrete slab for a cabin and nothing was too much trouble. They arrived promptly 8.30 and cleaned up after the job was completed at 5 30. . The team were very professional throughout. I would highly recomend
CP Construction
Rating: 5 out of 5
Extension Builder in Runcorn
We are an independent building company based in Altrincham we are very professional and established with over 15 years of experience in the building trade
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Latest review:
Guttering- 3 Sep 2020
Really happy with his work and punctuality. He mentioned that he has cleaned the gutter and put water to test the down pipes. Now I need to wait for the rain so that I can confirm the quality of the job he has done for me. So far so good for me. Happy to call him for future jobs. Thanks
Ian Reilly
No reviews yet
Extension Builder in Runcorn
Hi,we are a great local, trustworthy, reliable and value for money family firm. We look forward to working together to reach your goals.
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Stylish Home Improvements Ltd
No reviews yet
Extension Builder in Runcorn
At Stylish Home Improvements, we bring craftsmanship, reliability, and attention to detail to every project we undertake. Based in Liverpool, we specialise in all aspects of residential building and renovation — from single-room makeovers to full home extensions, loft conversions, and complete property transformations. Our goal is simple: to create beautiful, functional spaces that stand the test of time. Whether you're planning a kitchen extension, a modern ensuite installation, or a full-scale home refurbishment, our experienced team ensures every stage of your project is delivered with precision and care. We take pride in combining traditional building expertise with contemporary design and innovation, offering a service that's personal, transparent, and tailored to your exact requirements. Every home is unique, and so is our approach. From the first consultation to the final handover, we work closely with our clients to ensure their vision is realised to the highest standard. We manage everything — from planning and structural works through to plumbing, electrics, plastering, and finishing touches — giving you peace of mind that your home is in safe hands.
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MG joinery
No reviews yet
Extension Builder in Runcorn
Hello my name is mark I’m a self employed joiner who would love to take on any aspect of work you may have, wether it be a kitchen, flooring, skirting an arcs, doors, loft conversion or even a full extension, no job to small, I look forward to hearing from you.
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Jacob sims
No reviews yet
Extension Builder in Runcorn
Have 5 year’s experience in the general building trade working for a highly reputable company in the Cheshire and Lancashire area.I specialise in plastering, rendering landscaping and all aspects of bricklaying including repointing.
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Grassby Special Projects Limited
No reviews yet
Extension Builder in Runcorn
Unrivaled Professionalism From stunning extensions, refurbishments to interior design, GSP Ltd will provide the foundation to your lifestyle. Our Services: - Complete Design and Delivery: From initial concept to final handover, we manage every detail - Build to Customer Plans: Have your own design? We bring it to life with precision and care - Cost Reimbursable Procurement: Transparent and flexible procurement to suit your budget Why Choose Us? - Chartered Professionals: Proud members of the - Chartered Institute of Building, ensuring the highest standards of professionalism and integrity. - Expertise: With years of experience, we ensure quality in every project. - Client Focus: Your satisfaction is our priority
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4.2

Top rated Extension Builders

Our Extension Builders in Runcorn, are rated 4.2 out of 5 based on 10 reviews from customers like you.

Quality screening

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

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

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

What are the hourly rates of extension builders in Runcorn?

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

Find extension builders in Runcorn with MyBuilder

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

Step 2: Compare different extension builders in Runcorn

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

Step 3: Hire Runcorn extension builders with confidence

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

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

What to ask a Runcorn extension builder before hiring?

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

An extension builder in Runcorn 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 Runcorn 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 Runcorn?

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 Runcorn 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 Runcorn 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 Runcorn

Can an extension builder in Runcorn help with planning permission?

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

Many Runcorn 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 Runcorn help with materials and finishes?

Yes, most extension builders in Runcorn 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.