Extension Builders in Blackwater

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Blackwater

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Better Living Builders
Rating: 1 out of 5
Extension Builder in Blackwater
Better Living Builders specialise in high quality home conversions, extensions, renovations and alterations.
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Latest review:
Conversions - General- 6 Feb 2023
Sorry this is long: our experience differs to most on here. We chose Better Living to do our side and rear extensions from start to finish. All was good until the subcontractors finished the main structures, then it all went downhill. Ben rarely answered his phone, texts, emails etc., and because they had started a bigger project elsewhere they repeatedly abandoned ours, often for weeks at a time. Even when we went on holiday, they had the complete run of the house for two weeks but did very little. Ben deliberately held up work for two weeks after receiving a stage payment a day late, having given us one day to pay after emailing an invoice. Beyond the main structural jobs their work was often sub-standard and our instructions were not followed due to poor communication between the team. Out of frustration we eventually took a lot of work off them and drafted in other tradesmen to complete the project, also doing some of the work ourselves. We have since had to have some of their heating work rectified by engineers. Not saying everything was bad, but fact is the list of problems and poorly completed jobs is too long to list here. They finished at our property over three months ago and have still not sent us the completion documents. As usual, Ben is not responding to our attempts to contact him. Despite being hospitable to their team, we feel we were treated shabbily by BL and sadly would not recommend them.
H & H Maintenance
Rating: 5 out of 5
Extension Builder in Blackwater
Hi I’m Paul . We provide various forms of service construction,renovation,alterations and extensions .Kitchen/bathroom . In house plumbing & electrical .Qualified electrician with (NAPIT ), part p domestic installer. E/v charging stations zappi installer. Electric under floor heating. Registered installer for GRP flat roofing . Roof lights designed and installed.We have connections for drawings,planning & building control to assist with any project . Our services are professional and assured
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Latest review:
Conversions - General- 21 Nov 2020
Paul is very professional and we are happy with the work he completed. I would recommend his services.
Betsworth Developments
Rating: 3 out of 5
Extension Builder in Blackwater
I have been self-employed for nearly thirty years in general building works etc. I am listed with Rated People and have built up a good reputation with them over many years, as my website shows my previous compleated projects and customer referrals. I have my own digger and equipment.
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Latest review:
Extensions- 1 Feb 2019
Extremely satisfied. He happily goes the “extra mile” and his charges for such additional work are reasonable. Inevitably the odd unanticipated item arises in the course of the work and he discusses the options rather than making up our minds for us. His dictum that he does not leave a job for another before the first job is finished is reassuring - and fact. We have been happy to contract further work to him - including hard landscaping - on the completion of the original extension work, and are equally impressed with his performance in this.
Canelo Limited
No reviews yet
Extension Builder in Blackwater
I'm a qualified bricklayer and carpenter. I've been doing general building for over 35 years. I normally undertake anything from new build homes, loft conversions to large/small extensions. I'm also experienced in suspended ceilings, drylining and flooring in domestic or commercial properties. I also employ Plumbers, Electricians and Decorators.
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J H brickwork
No reviews yet
Extension Builder in Blackwater
We’re a family-run business with over 20 years of experience in the construction industry. At Signature Build, we guarantee the success of your project by combining expert craftsmanship with efficient project management, delivering the highest quality work in the shortest possible time—all while ensuring great value for your investment.
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SPJ Building Services Limited
Rating: 5 out of 5
Extension Builder in Blackwater
General builders that undertake all aspects of building work including extensions, alterations, loft & garage conversions, refurbs, painting & decorating, repairs & maintenance & much more.
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Latest review:
Restoration & Refurbishment- 31 Jul 2023
Simon and team did an excellent job, on time and as quoted. Very happy and would definitely use them again.
R&R builders
No reviews yet
Extension Builder in Blackwater
R&R Builders is a leader in providing value-added construction services to our customers by creating a successful partnership with them throughout the construction process. Our pledge is to establish lasting relationships with our customers.
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W2.0 Developments Ltd
No reviews yet
Extension Builder in Blackwater
With over 25 years of experience, W2.0 Developments Ltd has become a trusted name in construction and development in The Home Counties. As a reputable principal contractor, we specialise in delivering high-quality construction services to both residential and commercial clients. Our commitment to excellence and client satisfaction sets us apart as one of the top construction companies in The Home Counties. Founded on the principles of quality, reliability, and innovation, W2.0 Developments Ltd has grown from a small local contractor into a leading force in the construction industry across The Home Counties. Our journey has been driven by our dedication to delivering exceptional results, building lasting relationships with our clients, and continually raising the standards of construction.
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Charlie Baxter
No reviews yet
Extension Builder in Blackwater
Hi my name is Charlie and I’ve been doing roofing and Brickkaying Since I was a teenager and went to college for 3 years doing bricklaying only , been working with different Builders through out the years and now have decided to go solo 15 + Years Experience
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Astra Construction
Rating: 4.8 out of 5
Extension Builder in Blackwater
We are a family business with over 27 years of experience in the construction industry. We are offering the highest standards to every project and make sure you get the best result's by using the right materials and work technique at the best prices. We pay special attention to every detail and our goal is to offer everyone a safe and beautiful environment to live.
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Latest review:
Conversions - General- 1 Dec 2025
They carried out a full ground floor renovation: full plumbing (including water and heating), rewiring, plan reconfiguration including change of load bearing walls, kitchen and bathroom fitting, tiling, plastering, painting. Restoration of parquet flooring due to change of floor layout, internal door frames and doors installations. Minor related repairs on the first floor: radiator replacement, creating more space for stairs. Progress remained steady and well-managed throughout. Team was autonomous (like checking with structural engineer/architect/building regulations without our involvement), and if the input was required due to insufficient details/designer solutions we were involved as expected (as we wanted). The project stayed broadly within the agreed budget and time. The slight overrun was related to an additional foundation needed, which was not planned initially. Need for additional foundation was due to structural engineer calculations and building control.
Wilke Property Services
Rating: 5 out of 5
Extension Builder in Blackwater
Wilke Property Services I am a hard working man with 29 years experience. I have huge experience about painting , decorating, plastering, woodwork, plumber, tiling etc. I have the skills to do everything in your home. Wilke Property Services
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Latest review:
Marcin worked efficiently, handled everything with confidence, and the finished kitchen just works. No fuss, no second-guessing. Just a properly well skilled professional doing what they do best. Very happy to recommend
Dixons Building and Maintenance
Rating: 5 out of 5
Extension Builder in Blackwater
I have been in the building trade for some 30 years and I pride myself on the quality of work I provide to each and every customer. I don't believe in bodging or cutting corners, if a job is worth doing, it's worth doing right.
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Latest review:
Conversions - General- 9 Apr 2015
Steve did a great job converting a bedroom into a kitchen, including all plumbing, electrical works, ceiling & floor insulation, underfloor heating... Steve brought in other tradesmen for more specialist jobs, who did a good job too. Steve was dedicated to the project and even turned up on weekends to make progress with the conversion. The place was always left clean and tidy at the end of the day. Not knowing much about building works, I felt totally comfortable with the job being in Steve's hands, and I already talked to Steve about another job I'd like to have done soon!
DC Design & Build
No reviews yet
Extension Builder in Blackwater
I spent 15 years locally as a general builder having first worked to achieve my advanced craft C&G carpentry training. I then worked in central London for ten years building very impressive homes for very wealthy people. I am now bringing all of my experience back to my roots so my clients can enjoy the benefit of my broad experiences within the building industry without the expensive costs.
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Gareth Lewis Developments Ltdl
Rating: 5 out of 5
Extension Builder in Blackwater
Gareth Lewis Developments Ltd is a well established property development company with many years experience within the building and construction industry. We have a dedicated team all with a wealth of experience and commitments to our customers. We carry out all aspects of renovations, refurbishments, all general building and bespoke works.
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Latest review:
Extensions- 7 Feb 2019
From the moment we met Gareth we were impressed. The set out of the quote and the information which he provided with it were by far the most professional. Being a complete novice in the builing/renovation area, it was a daunting project to commence but Gareth, and Emma, were not far from hand and very supportive in the process. We were made to feel comfortable in questioning anything we were not sure of. Upon the work starting we were introduced to Michael. Best described as Gareth's number 2. We have nothing but sheer respect for the work that that man can get through. He clearly has high standards of workmanship and with his time keeping. Always on time, never once in the 6 months he was at the property was he late or fail to arrive. Throughout the project we met and dealt with other members of the team, who were all polite and happy to chat. There have been one or two occasions when Gareth has been late /delayed to us, but you are able to quite happily chase him without there being an issue about it later down the line. There have been a few add-ons to the project as we have progressed which the team have happily adapted and or changed. Nothing is really too much trouble. Would I employ them again? Most definitely yes. Have I recommended them. Without doubt. Our dogs will miss them!!
Hants and Surrey Garden Rooms Ltd
Rating: 5 out of 5
Extension Builder in Blackwater
I’ve been a carpenter/builder for coming up to 40 years now. We are a small team that prides ourselves on our dedication to achieving high end finishes and second to none customer service.
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Latest review:
Carpentry- 28 Nov 2025
Neil (from Hants and Surry Garden Rooms Ltd) was an absolute God send! From start to finish, Neil was super-reliable, with excellent comms and did the most fabulous job. Neil fitted a new door, door frame and sundry other items to split a house into two separate apartments at the stairs level in the hallway -- I had an idea in my mind what I wanted it all to look like when complete, but the results of Neil's hard work surpassed this by a country mile. I will not lose his number! First rate job in every sense. I highly recommend.
KTM Renovations
No reviews yet
Extension Builder in Blackwater
Qualified specialist cabinet maker for 30 years Range of carpentry from hand cut roofs to making kitchens Have highly skilled reliable team to construct extensions from footings to internal finishes to which our clients taste and desire
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4.1

Top rated Extension Builders

Our Extension Builders in Blackwater, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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What types of services are offered by local extension builders in Blackwater?

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

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

What are the hourly rates of extension builders in Blackwater?

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

Find extension builders in Blackwater with MyBuilder

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

Step 2: Compare different extension builders in Blackwater

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

Step 3: Hire Blackwater extension builders with confidence

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

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

What to ask a Blackwater extension builder before hiring?

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

An extension builder in Blackwater 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 Blackwater 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 Blackwater?

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 Blackwater 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 Blackwater 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 Blackwater

Can an extension builder in Blackwater help with planning permission?

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

Many Blackwater 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 Blackwater help with materials and finishes?

Yes, most extension builders in Blackwater 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.