Extension Builders in Runcorn

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

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

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 Runcorn

568 Results

Sort by:

Cutting Edge Carpentry & Construction
Rating: 5 out of 5
Extension Builder in Runcorn
Cutting Edge Carpentry & Construction is a reliable and professional carpentry and construction company specialising in extensions, refurbishments, kitchen installations, garden rooms, media walls, fitted wardrobes, internal/external doors, gazebo's/pergolas/outdoor decking, bespoke joinery and general carpentry. We pride ourselves on delivering high-quality workmanship, excellent attention to detail and clear communication from start to finish. Whether it’s a small carpentry job or a full home renovation, we work closely with our customers to deliver projects on time, on budget and to the highest standard. Our services include first and second fix carpentry, bespoke storage solutions, flooring, doors, kitchens, and property renovations. We are committed to providing a clean, trustworthy and dependable service, with customer satisfaction at the heart of everything we do. We care for your home like it's our own. Fully insured. Free, no-obligation quotations available. https://share.google/LAmKxk1CmRFmvobG4
Get in touch
Latest review:
Carpentry- 24 Jul 2026
Perfect in every way. Brilliant job fitting my stable door which most fitters would not touch and was a really nice chap, If you need a job doing that goes without a problem. Make the call to him. Has my vote every time.
Eco builders nw ltd
Rating: 5 out of 5
Extension Builder in Runcorn
At Eco builders nw we specialize in all aspects of building , double glazing windows and doors . Our construction, demolition and building services help clients across the North West add space and value to their homes. Don't move - improve! Talk to Eco Builders in Liverpool today.
Get in touch
Latest review:
Extensions- 14 Oct 2024
Absolutely amazing,I highly recommend them lovely lads too . Definitely 5*****
Eris al
No reviews yet
Extension Builder in Runcorn
Hi My name is eris and I’ve been doing construction for about 10 years . I started as a labour in 2013 and becouse i was ambition i learned a lot during those years in constraction industry and here i am with my own construction company now called AronSideLtd. Since i started this job all the clients which i worked for they where happy with me becouse of help i gave them and quality of job too and this is my key ,help as much as you can work hard and make the client happy This is me ERIS.
Get in touch
Groundwork & Civils
Rating: 4.8 out of 5
Extension Builder in Runcorn
Groundwork & Civils working around the Northwest with over 20 years experience. We carry out all tasks including paving, driveways, landscaping, excavations, footings, drainage, site clearance, fencing and concrete. We take great pride in our work and reputation. We look forward to working with you.
Get in touch
Latest review:
Groundwork & Foundations- 26 Jun 2017
Rob and his team are by far the best tradesmen I have ever worked with. They listened to my ideas and brought their experience to bear on the project. Their estimates were competitive and accurate and their work ethic was fantastic. They even managed to save me a bit of money with their innovative thinking and product suggestions. I probably wasn't the easiest client to deal with... last minute changes etc... but the team were extremely accommodating and understanding. I highly recommend Groundworks & Civils for any kind of similar work you are thinking of undertaking. The test of a good tradesmen is whether of not you would use them again. I will and I did. Thanks for doing such a fantastic job, Rob! On a personal level, they are a great set of guys too. What more could you want :-)
LSM brickwork
No reviews yet
Extension Builder in Runcorn
At LSM brickwork we provide reliable professional high-quality bricklaying and building service with over 20 years experience 📍Covering Liverpool and surrounding areas Our services • Extension • Garage conversions • Garden walls • Repointing • Brick repairs • Alterations • Steel work • Structural openings • Landscape • Fencing Fully insured ( public liability ) All work carried out to a high standard as we take pride in our work keeping jobs clean and tidy, from small repair jobs to a larger project Get in touch for your free quote
Get in touch
Fantastic construction ltd
No reviews yet
Extension Builder in Runcorn
Company Description (Formal) Fantastic is a trusted residential construction and additions request company based in Liverpool, proudly serving the local community for over 10 years. As a family-owned business, we are dedicated to delivering the highest standards of quality, safety, reliability, and affordability in every project we undertake. With a decade of hands-on experience, our team combines professional expertise with a personal touch to transform homes into beautiful, long-lasting spaces. At Fantastic, we believe that attention to detail, honest communication, and a commitment to excellence are the foundations of every successful project. Whether it’s a single room or an entire home, you can count on Fantastic to provide professional services that enhance the beauty and value of your property — safely, efficiently, and affordably
Get in touch
Jonathon Chedotal
Rating: 1 out of 5
Extension Builder in Runcorn
Hello I am Jonathan I am a bricklayer/builder Very experienced team all family willing to do the extra time and hard work to make ur dreams come true we as a family building group will make sure ur home is left the way we would leave or own 110% on every job carried out never left a job undone and every job we ever built had been signed off or customer had been 100% satisfied with or work Can look up all my on instagram @JRCBUILDERS
Get in touch
Latest review:
Bricklaying- 28 Feb 2024
He had the window foe the opening and still made it 70mm to big, he didn't finish the aco to the drian and it runs down both ends so it pools, they done a concrete slab in the back garden it was level or square I told him twice before he pored the concrete and it still wasn't right, he was meant to take the rubbish with hi. An didn't,before all this I gave his number to my mate who wanted work goin he had problems with Jonathan as well, wouldn't recommend him.
AF Joinery
No reviews yet
Extension Builder in Runcorn
Hi, any job around the house I can help you with no matter how small
Get in touch
HandPro Home Improvment&Building Ltd
No reviews yet
Extension Builder in Runcorn
Hi, we new to MyBuilder and will be pleased to make customer dreams come true!! We offering a big range of services from: -Bathroom Renovations -Bricklaying -House Renovation -House Extensions -Loft Conversions -Landsacaping/Groundwork and much more....
Get in touch
Leabra construction north west ltd
No reviews yet
Extension Builder in Runcorn
Here at Leabra Construction North West, we are construction specialists in most building techniques. Grant Leary our managing director has a wealth of knowledge and experience having trained as a plumber and progressing his career to construction management for some of the biggest builders in the country such as Wates and Vinci construction. His career has spanned approximately 25 years where he has ran some very prolific schemes such as Whiston hospital and many high rise residential schemes with values of up to £250 million. When you appoint Leabra you will have the confidence that your scheme will be ran meticulously and professionally with a big project feel no matter what the budget in terms of planning, health and safety and attitude. Grant has not only built up a wealth of experience he also has many qualifications to back this up. A chartered member of the institute of building. MCIOB, federation of master builders company and nebosh qualified, upmost qualification in terms of H&S. Fully insured company we deliver on time and too budget every time.
Get in touch
STH Building Services
Rating: 5 out of 5
Extension Builder in Runcorn
My business has been trading for over 20 years, I have also been in the Building trade for 40 + years. I build one of houses, extensions, loft conversions, garage conversions also refurbishments. I have many checkable references of completed works I also have many photos of works throughout the building process.
Get in touch
Latest review:
We employed Steve [STH Building services ltd] to build our rear extension also build our dorma loft conversion. He came highly recommended from our friends. Steve and his team did a fantastic job on budget and time, there time keeping was excellent also all his team were very polite. I would highly recommend Steve and his team.
Blades building
No reviews yet
Extension Builder in Runcorn
Blades Building services is a reliable construction specialist with a great reputation for the high level of Quality Building and Property Maintenance Services we offer to all clients. We are also renowned for our ability to adapt to the needs of each customer even if work has already commenced. Our skills and expertise has been gained over the 30 years we have been involved in the building trade and the study of building. Our services extend to all aspects of construction and building.
Get in touch
PARNABY PROPERTY DEVELOPMENTS LTD
Rating: 5 out of 5
Extension Builder in Runcorn
Parnaby Property Developments is a total renovations and developments contractor. From aesthetic remodelling of a space to significant structural development no project is to big or too small.
Get in touch
Latest review:
Bathroom Fitting- 15 Jul 2023
Andy delivered what he’d promised and exceeded expectations. From first contact in April to completion today (15th July) he has been courteous, professional and has consulted us as necessary as the work has progressed. Problems that were not obvious when he attended site to work up his quotation were all addressed and without exceeding his original quotation. Andy and the tradesmen he uses for work he needs support with are thoroughly reliable. He turned up when he said he would and came back to finish off at a weekend, which was appreciated. We would highly recommend Parnaby Property Developments.
N.A.C Builders
Rating: 5 out of 5
Extension Builder in Runcorn
I am a hard working dedicated builder with 15 years experience which includes all aspects of building work (plastering, extensions, kitchen and bathroom fitting). I have built up my reputation by being honest and reliable and by also ensuring that customers are updated every step of the way in all projects being completed. If a problem arises I work with the customer to ensure all work is completed to a high standard and the original design is still completed.
Get in touch
Latest review:
Tiling- 3 Dec 2017
We used Neil initially for the tiling of the whole downstairs of our house, porch, hall, 2 living rooms, kitchen and conservatory. We were happy with previous reviews and comments and his quote was competitive so we went with him and were very happy with all works, and we asked him to also do some pipe works to radiators, plastering and laminate flooring which he did whilst here and completed all the works in just under 3 weeks taking all building waste with him at end of job. He and his mate Ronnie were very trustworthy and we left them with a key to let themselves in and lock up whist we were in work during the day. More than happy to recommend Neil and would use him again if we needed any further works.
Liverpool plumbers
Rating: 5 out of 5
Extension Builder in Runcorn
INDOOR/OUTDOOR TAP INSTALL AND REPAIR, IMMERSION HEATERS, RADIATORS, DISHWASHER, SHOWERS, BATHS, NEW KITCHENS, NEW BATHROOMS, EMERGENCY CALL OUT, LEAK REPAIR, TOILETS, BASIN, SINKS. ALL OF YOUR PLUMBING NEEDS.
Get in touch
Latest review:
Oliver was very polite and professional, got the job done quickly. We needed a new kitchen sink putting in as ours was very old and the tiles on the wall replacing. Oliver was able to make the kitchen feel brand new, will definitely use again if I ever need a plumber
Green jacket landscape and construction
Rating: 5 out of 5
Extension Builder in Runcorn
Hi, we are Green jacket landscape construction ltd we have been trading 25 years we offer competitive prices on all kinds of landscape/driveway and building projects , rake out and re pointing in lime or cement, small works also welcome, brickwork, Extension work, building projects including structural repairs and rubber Epdm flat roofing also welcome all works are guaranteed so please get in touch for a peace of mind ran project
Get in touch
Latest review:
Bricklaying- 20 Oct 2025
Excellent work. The old stone and brick barn required a good level of work to stabilize and repair prior to a new roof being fitted. Nick advised the best and practical way forward. The stone pointing and rebuilding was very good. Removing the existing roof timbers and stabilizing the end walls. Repairs to the brick work and the fitting of the new roof timbers ready for the new slate roof. Green jacket (Nick) were very reliable and commercially very fair. I did not want the cheapest quote, I wanted the most realistic and informed, Nick completed the remit completely. This project will require work to be carried out in different stages and Nick will be called in on several of the following works. Would recommend anyone to use Green Jacket.

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

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 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.