Extension builders in Hartfield

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.4 (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

816 Results

Sort by:

JOHNSON CONSTRUCTION AND BUILDING LTD
Rating: 5 out of 5
Extension Builder in Hartfield
JOHNSON CONSTRUCTION AND BUILDING LTD is a family run business for over 30 years. We undertake all aspects of construction from minor repairs, kitchens, bathrooms, extensions and new builds. We also specialise in loft conversions, basement conversions, steel fabrications, hard landscaping and civil works. The company employs 4 people directly and have fully sign written vans for transportation. We have full employers and public liability cover.
Get in touch
Latest review:
Conversions - General- 30 Aug 2021
Five star. Highly recommended. Tim and team undertook the garage conversion, conservatory install and garden landscaping. Work was done to the highest quality, on time and on budget. Great communication, professional and friendly throughout. Highly recommended.
Site Engineers Direct Ltd
No reviews yet
Extension Builder in Hartfield
All aspects of building including extensions, loft conversions, conservatories, double glazing, roofing, carpentry, plumbing, electrical, brickwork etc
Get in touch
Go Plumbing services LTD
No reviews yet
Extension Builder in Hartfield
Here at Go Plumbing Services we offer a huge variety of services from tap repairs, bathroom installations to full property maintenance. Established in 2005 Some of our recent works have included: Full bathroom rip outs and installation Toilet/sink/tap changes Re tilling small and large areas Fully high quality painting of walls and wood work. Full re wiring of electrics to single socket changes. Tap repairs Out side tap installation Carpet cleans using organic cleaning products only. Internal Door changes/repairs. Full End of tenancy cleans. Our company is fully insured. All our staff are fully DBS checked. Thank you for reading Joe
Get in touch
alunia construction ltd
Rating: 5 out of 5
Extension Builder in Hartfield
Alunia construction ltd specialise in groundworks , steel fixing and formwork .
Get in touch
Latest review:
Decking- 16 Mar 2022
Job done very well and quickly
Sebastian's Builders
Rating: 5 out of 5
Extension Builder in Hartfield
My business comprises of general building works, including extensions, loft conversions and house refurbishments. I also undertake smaller works including bathrooms, kitchens garden patios and fencing. I have been in the building trade for 15 years starting as a dry lining contractor and then moving to a general building firm.
Get in touch
Latest review:
Bathroom Fitting- 5 Oct 2022
Sebastian did a fantastic job with our downstairs toilet. Stayed close to me as there were delays in the delivery of some of the installations I’d ordered, he worked around it quite well for us. The quality of work is great! Thanks Seb.
Saber Building and Landscaping
No reviews yet
Extension Builder in Hartfield
Hi my names Chris I have been in the construction industry 18 years. I started my journey In brickwork through an apprenticeship when I was 17. I have worked on all sorts of contracts from the London Shard to Garden walls and patios. I have also worked for myself on lots of other other small projects from ground works up. I always take great enjoyment from working with a customer to bring their vision to life and discussing different design ideas. I take great pride in my work no matter how small the job. Thankyou for taking the time to read Chris.
Get in touch
BCS Construction Services Ltd
No reviews yet
Extension Builder in Hartfield
With over 15 years in the construction industry covering most trades BCS Construction is able to provide a reliable and trustworthy service
Get in touch
Don Buildings Ltd
Rating: 4.9 out of 5
Extension Builder in Hartfield
Don Buildings Ltd Client satisfaction is our primary concern and goal. If you are looking for top quality efficient and professional service, so look no further Don Buildings Ltd is here for you For and on behalf of Don Buildings Ltd, Donatas
Get in touch
Latest review:
Extensions- 27 Apr 2024
Super professional job, clean and efficient.
Aspire construction
Rating: 5 out of 5
Extension Builder in Hartfield
With 25+years experience in all aspects of the construction trade, we aim to deliver a friendly, competitive & high quality service to any job. We cover most of the south east of England, however we are happy to travel for the right project. We will walk through every job with the client so as they have a clear understanding of the schedule and happy to answer any questions to help put the clients mind at ease should they have any concerns. We cover anything from a tap change to an extension. Our love for work is with renovation projects and modernising homes, particularly bathrooms.
Get in touch
Latest review:
My father once told me, son all you need in life is a fair priced hard working builder, a good wife and a cheap jeweler. 1 out of 3 is a good start!
Michael sole trade
No reviews yet
Extension Builder in Hartfield
Laminate flooring, bedroom doors, kitchen cabinets, fence, porch, conservation extension build,
Get in touch
Abacus
No reviews yet
Extension Builder in Hartfield
Fully qualified carpenters with a great work ethic. We are fully insured We undertake work from hanging doors to bespoke furniture. We also do a lot of house refurbishments and extensions.
Get in touch
D F Carpentry
No reviews yet
Extension Builder in Hartfield
I am a carpenter of 28 years experience, all of my work is carried out professionally, cleanly and efficiently. I undertake all aspects of carpentry/general building ranging from New builds extensions, conversions, to handyman. I am extremely thorough and play close attention to detail. Many thanks. Kind regards David
Get in touch
Harley home improvements limited
Rating: 5 out of 5
Extension Builder in Hartfield
Harley Home Improvements Ltd. A property development company with over 20 years of experience. We cover all types of works: Extensions Loft conversions Garage conversions Kitchens Bathrooms Flooring Windows, Doors & Conservatories Patios & Decking We offer a friendly and professional service. We pride ourselves on our standard of work. References and viewing of our previous work is offered to all our future customers. Signed contracts are put in place on all ours jobs.
Get in touch
Latest review:
Kitchen Fitting- 7 Apr 2021
Jack and Luke helped us to install our kitchen last week and they did a brilliant job. We are so happy with the end result and it has been a pleasure working with them. From the first contact, they have been reliable and polite. I would recommend working with them anytime!
A B Dixey
No reviews yet
Extension Builder in Hartfield
We at A B Dixey Building Contractors are a family run, Paddock Wood based building company. With years of experience, you as the customer can be assured that you are in safe hands when it comes to your building project. We offer a professional, highly competitive and friendly service.
Get in touch
J2 Construction
Rating: 5 out of 5
Extension Builder in Hartfield
J2 Construction and Building LTD is a trained and professional team, with experience in all aspects of the building industry. Extensions, Conversions, Renovations. Approved installer for Magnet kitchens. Bathrooms, Landscaping.
Get in touch
Latest review:
Kitchen Fitting- 10 Apr 2021
Jack and his colleague were so professional,they arrived on time and installed a new kitchen extractor hood and kitchen ceiling light.They disposed the old extractor hood and vacuumed afterwards. We are really pleased with the work and will definitely recommend Jack to my family and friends!
VLL-MESHI Construction & Rendering Ltd
Rating: 5 out of 5
Extension Builder in Hartfield
Hello from VLL company number We have been established in UK for more than 16 years. Our trades are, Loft conversion and extensions. Insulation and rendering. Bricks lips. Plastering. I have a Health and safety policy in place and I have Public and employers liability insurance.
Get in touch
Latest review:
Plastering- 16 Oct 2026
Very happy with the work completed. Was professional, reliable and completed everything to a high standard. Great service from start to finish. Would definitely recommend!

3.4

Top rated Extension Builders

Our Extension Builders in Hartfield, are rated 3.4 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.