Extension Builders in Hartfield

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 2.6 (5 reviews)

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

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 Hartfield

801 Results

Sort by:

Matthews Project Services LTD
Rating: 4.6 out of 5
Extension Builder in Hartfield
Hello, I’m Leigh Matthews, Managing Director of Matthews Project Services Ltd (MPS). We’re a Sutton-based company specialising in high-quality construction and project management services across London and the South East. With over 17 consecutive years of industry experience, we pride ourselves on delivering reliable, efficient, and cost-effective solutions whether it's residential refurbishments, commercial fit-outs or infrastructure works. We’re committed to clear communication, professional standards, and ensuring every project is completed to the highest level of satisfaction. No job is too big or small, and we’re always happy to offer advice or a free quote.
Get in touch
Latest review:
Restoration & Refurbishment- 2 Apr 2026
Really pleased I chose Leigh Matthews for this job. We were taking over a building that was unoccupied for 18 months and there were some issues with that, The team were excellent, and they finished the 4-week job on time, and right on budget. They were helpful and considerate and left the premises clean and tidy. They were also able to help out with some problems with the plumbing that were not in the original scope. I loved the way they did the estimate and the invoicing. Breaking all the items down into the individual tasks and at the end of each week, itemising which tasks were complete and a %age on those in progress. I would not hesitate to employ them again
D.WARRINER building and Roofing
Rating: 5 out of 5
Extension Builder in Hartfield
D.warriner building&roofing are a well established company. That has built up an enviable reputation over the last 20plus years. We pride ourselves on our commitment to provide a professional service at all times,whilst maintaining the highest quality of work. We have a track record of innovative effective problem solving and attention to detail and our goal is to meet and exceed the expectations of every customer at a competitive price.
Get in touch
Latest review:
Roofing (Flat)- 9 Nov 2020
Darren & Son (plus Team) responded promptly to our advert for a Roofer in My Builder, they accessed the repair and quoted quickly. The work required was worst than expected but they tackled it with professionalism and speed and kept us informed of the work being done (via photos). They also cleaned up and disposed of all redundant waste. Thank you once again guys for being able to sort out what could have been a potential bigger problem and I would recommend then to anyone.
Strevett and sons ltd
No reviews yet
Extension Builder in Hartfield
Strevett and Sons Ltd are a local general building company with quality at heart, with over 10 years in the industry.
Get in touch
PPG CONSTRUCTION
No reviews yet
Extension Builder in Hartfield
Im an experienced Bricklayer who has run new build sites for 15 years on big projects and ive been a bricklayer for 29 years. Im GNVQ LEVEL 2 qualified and also have an sstss qualification in site management, health and safety
Get in touch
Grinstead construction
No reviews yet
Extension Builder in Hartfield
Hi my name is Dean Hutt. I am the owner of Grinstead Construction, which I started in 2003 after being in the industry since the age of 16. I have many years of experience under my belt. I have a team of trades people who work with me. We are fully insured and no job is to big or small customer satisfaction is our main aim. Quality and value for money.
Get in touch
JJE (Kent) Limited
Rating: 5 out of 5
Extension Builder in Hartfield
I have been undertaking building works for 18 years, and am qualified at college and university. I qualified as a surveyor and have been a surveyor for local authority. I now mainly undertake structural and heavy building works including wall removals, structural refurbishments,underpinning, steel installations and extension additions.
Get in touch
Latest review:
Handyman- 14 Nov 2023
Martin is over qualified for a handy man role, being a Quantity surveyor but he expressed to me the satisfaction he gets from doing DIY jobs for people. His work is seamless and precise. He completed all the jobs given in quick time, with minimal stress and mess for me. I would 💯% recommend JJ Structural Jacqueline Davis
Bruton Brickwork Ltd
No reviews yet
Extension Builder in Hartfield
I have been a bricklayer for over 25 years, undertaking jobs from garden walls to entire new house builds. I also undertake Groundworks and footings if required. I am fully insured. I have a lot of pride in my work, maintaining a high standard. I have assembled a very polite team, and we always ensure a clean and tidy work site.
Get in touch
G2 Brothers Construction
Rating: 5 out of 5
Extension Builder in Hartfield
G2 Brothers Construction is a family business, we undertake all aspects of building works to an exceptional standard. Working with clients to bring their vision to life is our priority & we pride ourselves in being honest, efficient, reliable & professional whilst doing so. We carry out all types of building works from New builds, Extensions, Garages, Driveways, Roofing, to installing kitchens & bathrooms. Two honest builders based in Warlingham/Surrey.
Get in touch
Latest review:
Kitchen Fitting- 12 Nov 2022
I am so happy with the work and professionalism of Tom and James. I had queried several companies and decided to work with G2 brothers based on how open and honest they were on the first visit for estimation of work. We discussed the work I wanted done, which was to replace the cabinets in the kitchen. We also discussed the budget I had and what the overall look I was going for. Throughout the whole project we discussed options, impacts and agreed together on next steps. They were a pleasure to work with, I will definitely use their services again. Great work!!!
Simon newing
No reviews yet
Extension Builder in Hartfield
I have over 25 years experience in all aspects of groundwork and brick laying and I always complete work to the highest standards possible.
Get in touch
Canning Ericsson Ltd
Rating: 4.7 out of 5
Extension Builder in Hartfield
Canning Ericsson Ltd is a family run business which has been established since 1985. We are members of the Federation of Master Builders and a LABC Registered House Builder, providing a total construction service. All designs are produced in-house, enabling the company to provide a genuine design and build service, from initial concepts through planning and building regulations approvals to the actual on site construction.
Get in touch
Latest review:
Bricklaying- 5 Oct 2018
Josh was great, good communication, did the job well, clean tidy. recommended.
FA Contractors Ltd.
New on MyBuilder
Extension Builder in Hartfield
At FA Contractors, we specialise in delivering high-quality construction and home improvement services with professionalism and care. From home extensions and renovations to patios, garden projects, and general building work, we approach every job with skill, precision, and attention to detail. We understand that every project is unique, so we take the time to listen to your needs, offer expert advice, and ensure your vision is realised safely and efficiently. Our team is fully trained, insured, and committed to maintaining a clean, safe, and respectful working environment at all times. Whether it’s a small improvement or a larger construction project, FA Contractors pride ourselves on reliable workmanship, clear communication, and fair pricing. We go the extra mile to deliver results that exceed expectations, making your home improvement experience stress-free and enjoyable.
Get in touch
Jk homes kent ltd
No reviews yet
Extension Builder in Hartfield
Award Winning House Builders based in Tonbridge, working throughout Kent and the South East offering the 'Full Service' including full project management for every client. Our experienced team ensure all works are carried out with meticulous attention to detail. All projects will be managed by our team of experts. We have over 17 years' experience in the construction industry. Our new homes warranty protects against any structural defects which may occur in the first 10 years, giving you peace of mind. Our goal is to give you the home you want and need, all within budget and finished on time, all whilst not impacting on the quality. Around 90% of our works come from repeat business and recommendations. Interested in our services? Give us a call today to discuss your requirements with one of our helpful team.
Get in touch
JLR-UK Limited
No reviews yet
Extension Builder in Hartfield
At JLR, we pride ourselves on combining extensive industry experience with a hands-on, personal approach. Working across Greater London, we take care of everything from residential and commercial projects to ongoing building maintenance — giving our clients peace of mind that their properties are in good hands.
Get in touch
EJ Multitrade Services
No reviews yet
Extension Builder in Hartfield
We are a small company that put the customer relationship first. Our work speak for it self and always leave the property clean! Leaving the customer always happy.
Get in touch
Watson Bros. Building Ltd
No reviews yet
Extension Builder in Hartfield
We are a bonafide building company with all aspects of carpentry, brickwork and roofing covered in house (full-time employees). Check our website. We have an excellent reputation and loyal to our company.
Get in touch
Danmol PM Ltd
No reviews yet
Extension Builder in Hartfield
Greetings, I am Marcus Chadwick, a builder with over 40 years experience in the industry. My experience covers all forms of building work from fixing door handles to house extensions, together with all types of groundworks including driveways and patios.
Get in touch

2.6

Top rated Extension Builders

Our Extension Builders in Hartfield, are rated 2.6 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 Hartfield?

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

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

What are the hourly rates of extension builders in Hartfield?

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

Find extension builders in Hartfield with MyBuilder

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

Step 2: Compare different extension builders in Hartfield

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

Step 3: Hire Hartfield extension builders with confidence

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

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

What to ask a Hartfield extension builder before hiring?

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

An extension builder in Hartfield 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 Hartfield 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 Hartfield?

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 Hartfield 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 Hartfield 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 Hartfield

Can an extension builder in Hartfield help with planning permission?

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

Many Hartfield 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 Hartfield help with materials and finishes?

Yes, most extension builders in Hartfield 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.