Extension builders in Hartfield

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.4 (5 reviews)

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Some of our top rated extension builders in Hartfield

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Fourth Little Pig
No reviews yet
Extension Builder in Hartfield
We are a specialist garden room company that offers beautiful buildings with bespoke dimensions and finishes while remaining affordable. We make this possible through our advanced, integrated design and manufacturing system which reduces cost without compromising on quality. Our system allows us to offer customers the ability to self design their garden room online and see instant pricing as they make changes. We use timber frame construction which reduces the overall footprint and cost, and our quality detailing and craftsmanship means it doesn't compromise on longevity or aesthetics while delivering better insulation and lower heating costs in winter months than alternative materials. Don't settle for standard when you could have bespoke!
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Marcus’s maintenance
No reviews yet
Extension Builder in Hartfield
A local handyman in the Croydon area who does basic plumbing repairs electrical socket pendant repairs painting and decorating lock changes
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SPR Construction
Rating: 4.7 out of 5
Extension Builder in Hartfield
Experienced Builder with over 10 years experience in the construction industry. •Bricklayer/ Builder • Stone Mason •Landscaper/gardening- full garden renovations and custom designs.
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Latest review:
Bricklaying- 20 Oct 2026
Stephen inserted a lintel above the garage door to support some failing brickwork. The job was completed fully and to a high standard, the site cleared thoroughly. Stephen was polite, nothing was too much trouble. .... we will happily use SPR construction again.
Complex building and landscaping
No reviews yet
Extension Builder in Hartfield
We are a skilled 3-man building and landscaping team with over 15 years of hands-on experience delivering high-quality construction and renovation projects. Our work spans a wide range of services, including complex landscaping, driveways, bricklaying, kitchens, bathrooms, extensions, and bespoke carpentry. We operate as a tightly coordinated unit, supporting each other across all aspects of the job to ensure efficiency, precision, and a seamless workflow. Our commitment to professional standards and attention to detail ensures every project is completed to the highest quality. Whether it’s a full home extension or detailed landscaping work, we take pride in our craftsmanship and our ability to bring our clients’ visions to life.
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T Dexter Construction Ltd
No reviews yet
Extension Builder in Hartfield
General Builder. Based in London and the south east
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Kalafuldeco
Rating: 5 out of 5
Extension Builder in Hartfield
❌ We Turn Houses Into Kalaful Homes ❌ 350+ REVIEWS / 5 STAR RATING X⭕️X - WE'LL MATCH ANY REASONABLE QUOTES - X⭕️X Hi, This is Cristina in The Office. We Specialise in Flooring / Painting Int / Ext Building Services - Kitchens / Bathrooms / Lofts / Extensions.etc +£25 Each - Plane / Trimming Doors if required +Removal £50 - £75 Each Room + Disposal £100 - £300 If Required FLOORING ESTIMATES / WE ALSO DO PAINTING Fitting Beading / Scotia is Free, Inc in the Job Fitting Skirting is Min £200+ / Hallway Min £250+ Kitchen / Bathroom Min £200+ Laminate / Lvt Click ( Sub Floor Must be Reasonablly Level ) Straight Runs - £20m2 / Inc Hallways £25m2+ MIN £100 UPTO 5m2 Engineered Click Straight Runs - £25m2 / Inc Hallways £30m2+ MIN £150 UPTO 5m2 Hardwood T&G / Tongue & Groove Straight Runs - £30m2 / Inc Hallways £35m2+ MIN £200 UPTO 5m2 Herringbone - £40 - £45m2+ Cash Deals + 20% on Bank Transfer or if Invoice is Required - Payments To be Made End Of Each Day ❌ Must be Able to Provide Off Street Parking / Permits as The Crew Needs Access to The Vehicle at all Times. Thanking you in Advance Christina & Kam @ Kalaful Deco PAINTING ESTIMATES PAINTING ONLY - NO WALLPAPERING We also do Flooring / Gardening / Man & Van + Handyman Jobs Single Room - £300 Inc Minor Filling & Sanding / All White ) + £75 / 2 Colours / Woodwork £50+ £150 Extra To Paint on Fresh Plaster Living / Double Room - £400 Inc Minor Filling & Sanding / All White + £75 / 2 Colours / Woodwork £50+ Hallways- £450 - £750 Inc Working around 4-8 Doors Thanking you in Advance Christina & Kam @ Kalaful Deco
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Latest review:
Hard Flooring- 11 Oct 2026
Super great job 👏
Ld roofing contractors
No reviews yet
Extension Builder in Hartfield
LD roofing is Roofing and building contractor based in Kent covering Kent and surrounding areas, 25+ years experience in all types of roofing and building work and all our work is guaranteed
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Studio Charrette Property Limited
Rating: 1 out of 5
Extension Builder in Hartfield
Studio Charrette Limited is a trusted provider of expert building and planning services. We proudly support homeowners in Gravesham, Dartford, Medway, Chatham, Gillingham, Strood, Rochester, and Maidstone. Specializing in high-quality construction and planning solutions, we are committed to delivering professional expertise tailored to each project’s unique needs. As part of our service, we offer planning, drawings, design, building regulations, and structural calculations, ensuring all necessary protections are in place if required. VIEW OUR BROCHURES
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Latest review:
Extensions- 7 May 2026
They did not do anything after making a payment of £1190
Ideal construction
Rating: 5 out of 5
Extension Builder in Hartfield
Hi my name is Paul, my company has only just started as a business, but we have been in the building game for nearly 40 years working for previous companies.
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Latest review:
Extensions- 11 May 2022
Excellent work, everyone on site was professional and let the neighbours know what was happening. Completely the job to a high standard on time and on budget. Would use again without a doubt.
Ed’s loft conversions Ltd
Rating: 5 out of 5
Extension Builder in Hartfield
We specialise in loft conversions, Extension to a complete house refurbishment.
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Latest review:
I engaged Edi to work on a full renovation and refurbishment of a 4 bedroom detached house with front and back gardens on Blackheath’s Cator Estate. Edi did an extensive amount of work, including stripping out; plumbing; plastering; windows installation; carpentry; and decoration. In addition, after commencing the property work, once the scaffold had been erected, following sensible advice, Edi and his team replaced the roof and fully insulated the attic; fitted additional electric points; rebuilt the garden patio; and replaced the flooring throughout, in addition to other important jobs including re rendering and pointing of chimneys, building new wardrobes in the main bedrooms; and upgrading the radiators. A new kitchen, and two new bathrooms have been fitted. The kitchen redesign meant knocking through a wall with the lounge to create a larger space. Edi is a highly skilled craftsman, who thinks creatively as he works to make best use of the space, including shelf fittings, and additional lighting for example. He has built some beautiful wardrobes, and the internal decorations have brightened up what was previously a rather shabby looking house. In addition to the above, I wish to commend Edi for his professionalism, courtesy, and passion for doing the best work possible. On all the site visits I attended, and every time I spoke with him on the phone, it was striking how much he cared about the work that he was doing, his desire to ensure that the house would look the best. I always left site visits with the feeling that he cared so much about the house that he could be safely relied on to give the best advice to enable us to make the right decisions. I also noticed that Edi and his team would take the upmost care to keep the property safe, tidy and in good shape throughout the project. He can be fully trusted to look after any site he works on. He is intelligent and careful when it comes to safety and security. It has been a pleasure for Edi and his team to work with us over a period of around 6 months, and he did so much to reduce the stress of a significant project so that we could always rely on him to work methodically, patiently and sensibly, and to make best use of the resources available. His pleasantness shines through, and everyone I know who has spoken to him has always provided me with the most positive feedback I have no hesitation in recommending Edi to anyone who wishes to engage him for future projects, and is most deserving of the good words that I and others that work with him have to say about him.
HD Developments (London) Ltd
Rating: 5 out of 5
Extension Builder in Hartfield
HD Developments Ltd. For any building work down to even just maintenance, we cover every aspect of the building trade. A lot more information available through contact as we are new to my builder. Thank you.
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Latest review:
Very professional. Job completed in good amount of time. Communicated well with us throughout. Left the house/garden as they found it. Could not fault them and their work. Will definitely be using them for more work in the future! Thank you!
CMR Building and design Ltd
Rating: 5 out of 5
Extension Builder in Hartfield
We at CMR are a property renovation company that has over 7 decades of combined experience within the real estate sector coupled with home-grown knowledge of West Sussex. We ensure the management team in place at CMR have all the tools required to facilitate any size project, encompassing everything from consultancy with an experienced architect and designers as part of our in-house teams. We specialise in all areas of renovation, loft and extensions.specialising in bathroom fitting and pitching fitting. This is to include working with foundations, building structure, window and door installation, kitchen and bathroom fitting, all electrical works and plumbing. We work with building control, architects and designers and structural design teams and our in house specialist building team. We have full liability insurance and references upon request. We offer a fully insured protection service on all building projects. We also offer an advisory service to start a project and facilitate the first stages of all works.
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Latest review:
Carpentry- 30 Jan 2026
Richard worked tidily and thoughtfully and did a great job of making our stairs safe. Including some extra support under more treads and really finishing off well. Very personable and professional.
Kepa Property
Rating: 5 out of 5
Extension Builder in Hartfield
Hi, My names Kelly, my company KEPA property started around 7 years ago as a cleaning contractor. Over the last few years we have found that our customers want a level of service and standards that can be hard to find. We decided that we would build a team that could meet our customers needs. So as we have found tradesman who are reliable, skilled and who could deliver the highest standards, we have built our maintenance and construction team.
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Latest review:
Handyman- 26 Nov 2020
Rupert was most efficient and helpful in sourcing a suitable extractor fan to replace my old one. He’s punctual, friendly, knowledgeable and I am really pleased with the finished result.
DS Elite House Ltd
No reviews yet
Extension Builder in Hartfield
To edit
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10x group ltd
Rating: 5 out of 5
Extension Builder in Hartfield
a team of highly experienced tradesmen operating through out sussex , surrey and london
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Latest review:
Carpentry- 13 Jun 2024
Job went perfectly. Even the weather was good. They are a good company to do business with.
Absolute Building Services
No reviews yet
Extension Builder in Hartfield
We are a friendly, family run business from Brighton, who work all over Sussex. We take pride in making sure the jobs are done to perfection and the customer is always happy. We specialise in extensions, refurbs and loft conversions. There is also no job too big or too small for us to undertake. We look forward to hearing from you.
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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.

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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.