Extension Builders in Blackwall

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (19 reviews)

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Some of our top rated extension builders in Blackwall

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Mandeep singh
Rating: 5 out of 5
Extension Builder in Blackwall
Hii we do all types of ground work landscaping and demolition on very decent prices
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Latest review:
Groundwork & Foundations- 30 May 2026
Really happy with Mandeep and the team. They are friendly, hard working and helpful. Communication is excellent and honest. I would not hesitate to recommend them
Bischell Construction Limited
Rating: 4.9 out of 5
Extension Builder in Blackwall
Design & Build projects that squeeze more out of every pound spent. We’ll deliver an outcome for you that looks a lot more expensive than it really is. It will be tailored to your lifestyle, designed for your senses and fine-tuned to minimise lifetime costs. If you have an eye on value, or looking for maximum ROI, we’ll deliver more for less. It’s about smart design and construction, so the result gives you more performance, better quality of life and a stronger return from your budget.
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Latest review:
Architecture- 4 Jun 2026
I recently worked with this structural calculation engineer for a project that required precise drawings, and I couldn’t be happier with the outcome. The calculations were spot-on, and the drawings were clear and detailed, making the process seamless with my builders. Not only was the quality top-notch, but the pricing was fair and transparent. Communication was excellent throughout, and they delivered on time. Highly recommended!
Constructional developments ltd
Rating: 5 out of 5
Extension Builder in Blackwall
We have many years of experience in the construction industry in all sectors of the building industry and provide a professional, prompt and reliable service on a comprehensive range of products from small domestic to large housing contracts across the south East.
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Latest review:
Extensions- 16 Jan 2021
Very good level of work and professionalism, would definately have James back to do more work, the job was completed with no issues and left clean and tidy.
BUILD SAFE LTD
Rating: 5 out of 5
Extension Builder in Blackwall
Hello, We are Build Safe ltd-professional Construction Company 20 years of experience. We are proud members of Federation of Master Builders! Providing a wide range of services: Design, planning, Structural calculations, all aspects of Building works- New builds , Extensions, Loft conversions, kitchen and bathroom fitting, Window installation,refurbishments, electrical, plumbing etc. 10 years warranty and, 1m public, 5m employers liability and 1 million indemnity insurance. Please get in contact for a free quote. Thank you! Build Safe ltd
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Latest review:
Very professional. We had quite a lot of work done. It was done in time as promised, and with great attention to detail and quality. Very happy with the results. Highly recommended.
GUANGDONG GEKE ELECTRONIC TECHNOLOGY CO., LTD
No reviews yet
Extension Builder in Blackwall
We are a solar photovoltaic panel manufacturer in China. We design, supply and PM renewable energy project worldwide for customers requested. Kindly drop us email at geket@yahoo.com for further discussion. God bless you
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W8 Build Ltd
Rating: 5 out of 5
Extension Builder in Blackwall
Hi, I’m Jon, the Founder of W8 Build. With over three decades of experience in both modern and listed buildings, I’ve dedicated my career to transforming spaces – from bespoke home extensions and loft conversions to the careful restoration of historic landmarks. I even had the honour of working on Windsor Castle alongside Her Majesty The Queen after the 1992 fire, a project that taught me how to balance grandeur with precision. At W8 Build, we believe exceptional craftsmanship should be accessible. Grounded in values of integrity, reliability, and meticulous attention to detail, my team and I bring the high standards of historic restoration to every project – all at market-competitive rates. Whether you’re seeking a stylish roof terrace, a complex basement conversion, or a heritage-sensitive renovation, you’ll receive a fixed-price, transparent proposal and a commitment to excellence that makes quality affordable. There are no hidden fees or inflated costs here – just clear communication, thoughtful planning, and the peace of mind that comes from working with a team that treats every project, whether a royal landmark or your family home, with equal care and professionalism. Let’s work together to bring your vision to life, blending timeless quality with modern practicality. Your dream space deserves nothing less. W8 Build by Jon Taylor
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Latest review:
Extensions- 14 May 2025
Jon was able to take a failed project from a previous contractor and manage historic building preservation, regulation in Westminster, a lack of parking, plumbing from the Victorian age, and a demanding client to deliver a beautiful result. I love my garden flat extension, it manages to respect the historic nature of a building from the 1840s while also adding amenities to be proud of in 2025. Thank you Jon (and team) and best of luck with future business.
AEE Construction Ltd
Rating: 5 out of 5
Extension Builder in Blackwall
General renovations, electric, plumbing, decoration, painting, kitchen fittings, tiling, flooring, bathrooms, extensions, loft conversions and property maintenance
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Latest review:
Handyman- 27 Jul 2023
Very professional and polite man. Job done neat and professionally. Would highly recommend.
Nice Design & Build
Rating: 5 out of 5
Extension Builder in Blackwall
Quality general builder
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Latest review:
Decking- 16 Apr 2022
Adam is firstly a really lovely guy and we felt comfortable with him from the moment he came and did a very thorough assessment of the job. His work was very neat and clean. The job was done perfectly and we will definitely be using his services for other work on the flat.
Justas Kusak
Rating: 5 out of 5
Extension Builder in Blackwall
I'm a self employed roofer for more than 14 years now. Roofing specialist you can rely on. 10 year Warranty for work. EPDM, GRP, Felt, RESITRIX, Kemperol, lead, slates, tiles, skylights and more...
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Latest review:
Fascias & Soffits- 19 Aug 2019
Very happy with the work Justas did, house looks much tidier with the new fascias and guttering. He arrived on time, quoted a fair price and did a good job. I would happily recommend and hire him again.
great construction limited
Rating: 5 out of 5
Extension Builder in Blackwall
I am a builder who undertakes all types of jobs from kitchens, bathrooms, drive ways, garden work, roofing, extensions loft conversions, painting, flooring, plastering
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Latest review:
Extensions- 1 Aug 2024
Good work progress and ethos. All going very well.
Delta Electrical Solutions Ltd
Rating: 5 out of 5
Extension Builder in Blackwall
My work consists: . ALL ELECTRICAL AND FIRE ALARM INSTALLATIONS. . NICEIC DOMESTIC AND APPROVED CONTRACTOR. . FULL REFURBISHMENT . EXTENSIONS AND LOFT CONVERSIONS. If your looking for a reliable hard working and fully qualified team of builders look no further then Delta Electrical Solutions Ltd.
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Latest review:
Electrical- 10 Oct 2018
Glorian was super speedy fitting spotlights in my living room and kitchen. He was very tidy and did a great job all round.
Chris is carpentry
Rating: 4.5 out of 5
Extension Builder in Blackwall
"Welcome to Chris's Carpentry and Joinery. As a skilled sole trader, I blend the artistry of carpentry with the precision of joinery to create bespoke solutions for your living spaces. With a passion for woodworking and years of expertise, I bring your ideas to life with personalized attention and a commitment to quality. Let's collaborate and transform your vision into beautifully crafted, functional pieces that elevate your home."
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Latest review:
Carpentry- 12 Mar 2025
Chris was great- he installed a internal bi-fold unit which needed some considerable adjustment due to the measurements of the space it needed to go in- he took his time to understand the problem and work out a solution- the doors now works great and often get complimented by those who visit. Chris then helped fit a number of doors with handles in the property upon request- doing a great job in the process. Chris is a very tidy worker and is very good at communicating and being punctual. He was always very polite and was very careful to make sure he took care of the space he was working in at the property. He is also extremely reasonably price- would recommend him to anyone else- and will for sure contact him if I have any other jobs doing. Chris is a star!
Beam Developers ltd
Rating: 5 out of 5
Extension Builder in Blackwall
Unlocking a world of possibilities, BEAM Developer Ltd specializes in an array of dynamic property services. From sleek architectural designs for planning applications to robust structural packages, we've got your project covered. Our expertise extends to seamless renovations, repairs, and captivating new extension and conversion builds. Elevate your vision with BEAM Developer Ltd – where excellence meets innovation!
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Latest review:
Ahmad and the Beam Developers team did an amazing job on my rear extension. We were very particular with our requests and are generally picky people but they were very patient and accommodating to our every request. We were shown the drawings, made adjustments and managed to tailor the project exactly to what we wanted. The finished results were amazing. No big project for us soon but should we plan to do the loft will definitely use Ahmad and his team again.
Haynes Building Services
Rating: 5 out of 5
Extension Builder in Blackwall
Haynes Building Services are a trusted and professional company providing a full building service dedicated to the highest standards in every aspect of performance with over 30 years experience. We maintain a high level of repeat business through our ability to respond efficiently to clients wishes.
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Latest review:
Bathroom Fitting- 28 Nov 2020
Michael and his team did an excellent job of of fitting my new bathroom. They also redecorated my hall, stairs and landing. So pleased with the result. They were always polite, punctual and very helpful. Would definitely use them again.
sall construction london ltd
Rating: 4.9 out of 5
Extension Builder in Blackwall
I have been working in building trade from 17 years. I believe you learn everyday from your own experience and improve the quality more when you do it next time. I have gained most of knowledge from my working experience. I get lots work leads from my previous clients.
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Latest review:
Extensions- 30 Aug 2018
my experience of working with these guys was very positive. i eventually got a new kitchen fitted by them rather than an extension as the extension was above my budget. Their pricing was competitive, although not the cheapest. i made a conscious decision to offer the project to sall construction because they were experienced, and they were detail orientated with my plan as well as the fact that their timeline matched my project timing. the kitchen fitting was done, in fact, slightly ahead of the two weeks that sunny had said it would take-which was very useful. we also went on a holiday and left the whole place to them, and everything worked out for us, so clearly very trustworthy. sunny and his brother were excellent tradesmen and came back twice later on once we notified them of some small issues. its now been 1 year since the installation of the kitchen, and fingers crossed, everything looks and works great. everyone is impressed with our kitchen which is also indicative of their very good work. I will happily hire them again if i have to do some work on extension or refurbishing.
Marangoni Construction
Rating: 5 out of 5
Extension Builder in Blackwall
We are dedicated to building quality projects and our wealth of experience and efficient working methods mean that with us on board, you get more - more choice, more cost savings and a quicker turnaround.We are a hard workers,good organiser,sociable,loyality,honest
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Latest review:
Hard working and experienced professional with large experience in mid-sized residential projects. Dyone always tries to go the extra mile to please the client. He has worked in several European countries giving him access to better knowledge of materials and suppliers. Great to work with.

3.9

Top rated Extension Builders

Our Extension Builders in Blackwall, are rated 3.9 out of 5 based on 19 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Blackwall?

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

Find extension builders in Blackwall with MyBuilder

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

Step 2: Compare different extension builders in Blackwall

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

Step 3: Hire Blackwall extension builders with confidence

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

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

What to ask a Blackwall extension builder before hiring?

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

An extension builder in Blackwall 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 Blackwall 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 Blackwall?

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 Blackwall 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 Blackwall 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 Blackwall

Can an extension builder in Blackwall help with planning permission?

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

Many Blackwall 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 Blackwall help with materials and finishes?

Yes, most extension builders in Blackwall 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.