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

817 Results

Sort by:

Durabuild Carpentry ltd
No reviews yet
Extension Builder in Hartfield
Durabuild Carpentry have been established since 2016 with 20 years of experience in loft conversions, extensions and refurbishments. We pride ourselves on our communication with customers and finished products. Please find more reviews from customers on Google reviews by typing in Durabuild Carpentry Ltd into Google search engine, Facebook and Instagram. Public liability insurances shown on request
Get in touch
Brickhurst ltd
No reviews yet
Extension Builder in Hartfield
We are a general building company and have been running successfully for over 10 years now. We come highly recommended by many clients. We undertake jobs of all sizes, in every aspect of construction. From recently building a beautifully designed 3500 square foot house to small roof repairs.
Get in touch
Ntl construction
No reviews yet
Extension Builder in Hartfield
Here at NTL construction we pride ourselves on attention to detail and achieving the impossible, working alongside our client to finish their project. Big or small to the highest standard, with in our team we have everyone from a plumber to carpenter, ground works to roofer so everything is handled in house no waiting on sub contractors. Portfolio of works and views of Previous clients projects on site available on request
Get in touch
Paul Thomas Building and Roofing
No reviews yet
Extension Builder in Hartfield
GNVQ level 3 , city and quilds qualified builder and roofer, I have been working in the industry for 20 years, the last 15 running my small company completing extensions,loft conversions, re roofs and all types of building and roofing repairs.
Get in touch
Cosmin Construction & Consulting LTD
No reviews yet
Extension Builder in Hartfield
General Contractor with experience in all stages of building work from foundations to final finishes. Most of the work is done by my team and specialist jobs are sub-contracted. I can manage the whole process and provide clarity and simplicity of the the work.
Get in touch
Broadview construction
No reviews yet
Extension Builder in Hartfield
123
Get in touch
B T M Building Services
No reviews yet
Extension Builder in Hartfield
I have been trading as BTM Building Services for the last 15 years, I have regular clients in my local and surrounding areas all gained through word of mouth and recommendations, I started doing small jobs and grew quickly into larger works and I now provide a full building and maintenance service with many very happy clients, I have a small team which includes an electrician and plumber which I use to ensure all works are certificated.
Get in touch
Sonnys carpentry
Rating: 5 out of 5
Extension Builder in Hartfield
EXTENSIONS | LOFT CONVERSIONS | UPVC WINDOWS & DOORS | KITCHENS | BATHROOMS | FLOORING | DOORS | PITCHED ROOFS AND DORMERS | ELECTRICS | PLUMBING | PLASTERING ||| MY WORK IS ALWAYS PROVIDED WITH A SHOWROOM FINISH | IM POLITE, PUNCTUAL AND TAKE PRIDE IN MY WORK | IM A PROFESSIONAL CARPENTER WITH A WORKING BACKGROUND IN THE BUILDING INDUSTRY | I ONLY TAKE ON ONE JOB AT A TIME.
Get in touch
Latest review:
Kitchen Fitting- 27 Apr 2019
Our experience with sonny was great. He was very professional including giving a detailed broken down quote and was always quick to communicate. Once the job started he was on time everyday, he tidied up after himself and he got the job done to a high standard. As the build happened he was flexible with changing things that we wanted to change and to help with solutions when things needed to be done differently. He was always very friendly and happy to answer questions and pick up items we needed for the build. I would definitely recommend Sonny and I would use him again in the future.
Patrick Taylor
Rating: 5 out of 5
Extension Builder in Hartfield
We offer a fully comprehensive service from planning and designing to innovating and building. We can help in all aspects of residential projects from fixing a leaking tap to extensions and new builds. A full portfolio and customer references are available upon request.
Get in touch
Latest review:
Kitchen Fitting- 31 Jul 2019
Can't recommend this guy enough! Pat is a professional from start to finish. He came to quote me for a complete kitchen refit, within a few days he had emailed me a detailed quote and we agreed a date. My kitchen came with many unforeseen problems and challenges but Pat rose to them all. Aside from being a skilled carpenter and a skilled builder he is a great problem solver. He is reliable,trustworthy and very approachable. When I was getting stressed out he would calm me down and reassure me that everything would be ok. Sounds silly but my kitchen issues would have stressed a saint out! To summarise, my kitchen has turned out beautiful! Pat has done the work to a very high spec and gave it the wow factor! I absolutely love my new kitchen and am so happy that I chose Pat to come and do it for me. Look no further!!! Hope he posts my before and after pics on here and you can see for yourselves!
Da Clark groundworks
No reviews yet
Extension Builder in Hartfield
At DA Clark Groundworks Ltd, we deliver high-quality groundwork and civil engineering services across Sussex, Kent, and Surrey. With a strong reputation for reliability, precision, and professionalism, we specialise in foundations, drainage, site preparation, and hard landscaping for both residential and commercial projects. Our experienced team works closely with homeowners, builders, and developers to ensure every project is completed safely, on time, and to the highest standard. Whether you’re starting a new build, extending a property, or preparing land for construction, DA Clark Groundworks is your trusted partner from the ground up.
Get in touch
JD and sons
No reviews yet
Extension Builder in Hartfield
29 years experience in all aspects of the building trade Family run business with close network to customers
Get in touch
James birchmore
No reviews yet
Extension Builder in Hartfield
Hello, my name is james. I am 24 years old with 8 years building experience. I am a skilled bricklayer and frist fix carpentry. I am kinda, friendly and honest person who will do my upmost to fulfill the job to a high standards and to you criteria.
Get in touch
David Rutland & Co. Ltd
Rating: 5 out of 5
Extension Builder in Hartfield
We are a well established family run business with over 30 years experience, we undertake all aspects of building work from patios and driveways to extensions and refurbishments. We deliver excellent customer service alongside fantastic workmanship. Every project we undertake is bespoke to our customers needs drawing upon our years of experience and knowledge to deliver a quality finish. We can accept Credit card payments.
Get in touch
Latest review:
Landscaping- 18 Jul 2025
Efficient and a quality job, would recommend.
DA Paving
Rating: 3 out of 5
Extension Builder in Hartfield
DA Paving is a qualified paving, driveway and building works specialist company, we have over 10 years experience in what we do. We also provide suppling and fitting of all materials from laying patios to driveways, pathways and building works Block paving, tarmac and resin driveways and all building works are just some of what we can do.
Get in touch
Latest review:
Extensions- 7 Dec 2021
The job was agreed, quote was finalized and after taking all the porch doors and windows dimentions to order he just stopped the work and no response whatsoever after that :( This impacted my whole plan fo building the porch.
James Alan dale
No reviews yet
Extension Builder in Hartfield
Hi there I’m James ! I’m a multi trade builder I do anything and everything from simple floorboard replacements to full extensions ! There is no job to big or to small. We accomplish work to a high standard and on time !
Get in touch
SBS(Lewes)Ltd
No reviews yet
Extension Builder in Hartfield
SBS(Lewes)Ltd have been in the building industry for over 30 years and have a wealth of knowledge and experience across the industry ranging from equestrian buildings, new builds, alterations and much more.
Get in touch

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.