Extension Builders in West Ham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (21 reviews)

Easily find verified West Ham Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in West Ham.

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 West Ham

3240 Results

Sort by:

G G Property Development Limited
Rating: 5 out of 5
Extension Builder in West Ham
We are a friendly hard working company. We pride ourselves on archiving high standards of works in short time periods. We have carried various works from new builds, complete property refurbishments, extension, loft conversion, kitchens, bathrooms, electrical and plumbing works, plastering, rendering. All works are guaranteed and fully insurance. We are a commercial, industrial and domestic company. We have many photos of works and website shall be finished in the near future.
Get in touch
Latest review:
Loft Conversion- 5 Dec 2018
Firstly the date of job posting and date of completing is all down to me not being ready with finances!! Secondly, and more importantly, GG Property were the most wonderful and professional bunch of lads you can hope to met. The work was done with such enthusiasm and to such a high level of detail. We could not be happier with the finished job. Thirdly, the great building work aside, GG Property were polite, happy, friendly, punctual and great communicators. All emails answered swiftly and with accurate information. No question was to silly and no concern (this was our first major building working) was to small to be addressed. Finally we are so pleased with work we are awaiting a quote for our bathroom and look forward to getting that job completed!! In short my experience with GG Property was nothing but top quality work and customer service. Any fears of the classic 'cowboy builder' could not be further from the truth; GG Property are a hard working truly lovely bunch and we would highly recommend them.
Design Build Deliver London LTD
Rating: 5 out of 5
Extension Builder in West Ham
Design Build Deliver London Ltd At Design Build Deliver London Ltd, we provide high-quality building and renovation services across London, delivering exceptional workmanship from concept to completion. With a strong focus on reliability, professionalism, and attention to detail, we work closely with homeowners and property developers to transform properties into modern, functional, and beautifully finished spaces. Whether it’s a full property renovation, a bespoke bathroom installation, or a complete extension project, our experienced team manages every stage with precision and care. We pride ourselves on delivering projects on time, within budget, and to the highest standards. Our Services * Full House Renovations * Bathroom Renovations & Refurbishments * House Extensions * Garden Design & Landscaping * Roofing Services * Plumbing Services * Electrical Installation & Repairs * Kitchen Renovations * Property Refurbishments * Interior & Exterior Improvements * General Building Works * Design, Build & Project Management Services Design Build Deliver London Ltd — transforming properties with quality craftsmanship and dependable service.
Get in touch
Latest review:
Bathroom Fitting- 7 Jun 2026
Excellent service and outstanding workmanship! I recently had my bathroom renovated by this company and I couldn't be happier with the results. From start to finish, they were absolutely professional in every way. The quality of their work is truly perfect - they paid such close attention to detail and did an amazing job with everything. What's more, the price they quoted me was very reasonable and they stuck to it without any hidden costs or surprises. The whole process was smooth, efficient and stress-free. I would highly recommend them to anyone looking for building services - they really are top class and provide excellent value for money. Thank you for such a fantastic job! To Abdullah and his team.
Garey Limited
Rating: 5 out of 5
Extension Builder in West Ham
General building
Get in touch
Latest review:
Very reliable and high quality of work.
Pyramid construction
Rating: 5 out of 5
Extension Builder in West Ham
There is father and son business. We do most bricklaying, Extension, garden walls, renovations and home improvements. Experience 15 years. We are reliable and professionals on our job. Happy to give an estimate.
Get in touch
Latest review:
Bricklaying- 24 Oct 2020
Perfect. ways on time and to the point Egki and his colleague did an excellent job. With thanks, J.
All Aspects Group Ltd
Rating: 5 out of 5
Extension Builder in West Ham
All Aspects Construction is a multi-disciplinary contractor who specialise in the construction, refurbishment and maintenance of commercial and domestic buildings. We focus on delivering the very best craftsmanship in all services delivered and a quality end product through sustainable construction all within an approachable and professional manner.
Get in touch
Latest review:
Painting & Decorating- 30 Apr 2019
Thoroughly recommend this Company, very professional, industrious, thorough, and exceptionally helpful, left the working areas clean and tidy, definitely value for money, delighted with the job of work carried out.
FLV PROPERTY LTD
Rating: 5 out of 5
Extension Builder in West Ham
At FLV property ltd we are a team of skilled professionals with extensive experience in the construction industry for over 30 years. Whether you are planning a new build, an extension, a renovation or bespoke projects, our expertise ensures that every job is completed to the highest standards on and within budget. What we offer; •A team of dedicated professionals •Architects •Structural Engineers •Surveyors •Multi skilled tradesmen Attention to detail from design to composition. Our promise; We understand that building projects are significant investment's, and our goal is to make the process as smooth and stress free as possible. From initial consultation to project completion, we work closely with you to ensure your expectations are not only met but exceeded. LETS BUILD TOGETHER!
Get in touch
Latest review:
Gus and Frank were brilliant. Their attention to detail and care for our project was evident. There was already an issue with our floor which Gus and Frank rectified for us before doing the tiling. The final finish was immaculate. We liked their work so much that we also got them to fit our kitchen worktop. Good communication and clarity throughout the job. Would definitely recommend!
Almedon construction
Rating: 4 out of 5
Extension Builder in West Ham
Almedon Construction is a privately owned family run business that exudes energy, ambition, and confidence. We leading independent versatile and experienced construction business for more then 15 years providing specialist solutions for Remediation, Groundworks, temporary works, and RC Frames, precast & insitu concrete, frames, external works, loft conversion, extension, Interior painting & decorating, Exterior painting & decorating across London.
Get in touch
Latest review:
Painting & Decorating- 14 Feb 2023
Edwart is polite, gave a competitive quote and got started straight away. He provided the materials and the workmanship is good enough. He and his team worked hard and stopped smoking in the house after I asked them not to.
Coinscope construction
Rating: 4.4 out of 5
Extension Builder in West Ham
Hello I'm Adrian I'm a young, hardworking builder With good skills Always giving affordable prices Get in touch if interested thanks
Get in touch
Latest review:
Fencing- 5 Jun 2021
Really good work and a very friendly service. Thanks guys!
Barnet Builders
Rating: 5 out of 5
Extension Builder in West Ham
Barnet Builders Amir Gunić I am pleased to introduce my company, Barnet Builders, a trusted name in groundworks and construction services. With over 20 years of hands-on experience in both domestic and commercial projects, I have built a reputation for reliability, quality workmanship, and a professional approach to every job. At Barnet Builders, we own and operate a full range of equipment, including a digger and specialist groundwork machinery, allowing us to deliver efficient and cost-effective solutions. From small residential jobs to larger commercial developments, we pride ourselves on meeting deadlines, maintaining high safety standards, and ensuring complete customer satisfaction. Our services cover all aspects of groundwork, including excavation, site preparation, drainage, landscaping, and more. In addition, we also specialise in house extensions and loft conversions, helping homeowners maximise their living space with practical and stylish solutions. If you are looking for a dependable and experienced partner for your next project, we would be delighted to discuss how Barnet Builders can help you.
Get in touch
Latest review:
Groundwork & Foundations- 6 Jun 2026
Amir and his team completed the job at speed and to spec and were very good in tidy up post completion. Would recommend for any building work.
Graal Structural Engineering Ltd
Rating: 5 out of 5
Extension Builder in West Ham
We offer Structural Desing and Calculations for New Build, Extensions, Loft Conversions, etc. Detailed drawings and calculations for Building Control. We offer one-stop-shop services including, planning applications, architectural & structural design, cost estimations, project management and construction works.
Get in touch
Maclondonbuilding
Rating: 4.9 out of 5
Extension Builder in West Ham
MACLONDONBUILDING specialist in general construction and renovation services. All kind of house conversions . Our works are performed at the highest standard with attention to the details. Professional team always happy and enjoyed of the work.
Get in touch
Latest review:
Tiling- 16 Jan 2026
Mac was fantastic and went above and beyond to do the job to a high standard, working well into the evening to get it done. I’d recommend him without hesitation for any work you need doing - big or small. We’re delighted with the finished product.
Z&V PROPERTIES LIMITED
Rating: 5 out of 5
Extension Builder in West Ham
I have been working in this industry for 30 years. I have moved to London just about 8years ago. I`v been working as carpenter, builder site and rebuild house is out side and inside as well. Because my English language is not the best i have my little helper my son. Also he is working with me as well. He can take part in the same jobs as me .
Get in touch
Latest review:
Carpentry- 2 Apr 2025
Zoltan did a great job of fitting my fire doors.
Eugen Istrati T&E Constructions
Rating: 5 out of 5
Extension Builder in West Ham
All our works is carried out by our professional, qualified teams and project managed throughout, ensuring that all projects are within budget and meet deadlines. We guarantee complete customer service with only the highest standards of finish. We are tailored to meet all of our client’s requirements.
Get in touch
Latest review:
Restoration & Refurbishment- 19 Mar 2023
Igor came and did a great job, working around some issues, working around other trades in the house and delivering a great finish. Really easy to talk things through with and gave us the finished bathroom we wanted. Highly recommended.
A&Z Builders
Rating: 4.6 out of 5
Extension Builder in West Ham
We have been in the building trade for 25 years doing all various types of jobs from water tap to new built houses. We are fully qualified tradesman We all have a roles in the team and everyone is pride in being the best at what we do. FREE QUOTES are given with no obligation! PUNCTUAL HONEST and RELIABLE.
Get in touch
Latest review:
Bathroom Fitting- 19 Oct 2024
Fixed the problem and also fixed the cause so it won’t happen again
CJ Carpentry
Rating: 5 out of 5
Extension Builder in West Ham
We are joiners by trade, passionate on what we do over the years. We have combined over 32 years of experience on carpentry/joinery itself. As there is always demand, we started delivering any type of construction work, full house refurbishment, kitchens, bathrooms etc. Always preserving our high quality of work, honesty, professionalism. Fully committed to anything we can come across, always find clients, architects solutions so we can achieve everyone’s dream, expectations.
Get in touch
Latest review:
Carpentry- 18 May 2022
Very professional and friendly tradesman. Work was carried out perfectly and I couldn't recommend him high enough. Brilliant work ethic and he went the extra mile to carry out the works impeccably. Privellage to work with him.
O.L.T.O CONSTRUCTION Ltd
Rating: 5 out of 5
Extension Builder in West Ham
we are able to undertake any work that has to do with the interior and exterior of your home. Responsibly!
Get in touch
Latest review:
They did an amazing job of our extension from initial quotation right the way through until project completion. Communicated very well and all of the team were respectful and hard working throughout each stage of the project. Would highly recommend!

Top rated Extension Builders

Our Extension Builders in West Ham, are rated 4 out of 5 based on 21 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 West Ham?

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 West Ham 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 West Ham who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in West Ham?

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

Find extension builders in West Ham with MyBuilder

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

Step 2: Compare different extension builders in West Ham

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

Step 3: Hire West Ham extension builders with confidence

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

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

What to ask a West Ham extension builder before hiring?

Before hiring an extension builder in West Ham or extension building company in West Ham, 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 West Ham?

An extension builder in West Ham 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 West Ham 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 West Ham?

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 West Ham 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 West Ham 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 West Ham

Can an extension builder in West Ham help with planning permission?

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

Many West Ham 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 West Ham help with materials and finishes?

Yes, most extension builders in West Ham 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.