Extension Builders in Plumstead

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

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Some of our top rated extension builders in Plumstead

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Denis & Kelvin LTD
Rating: 5 out of 5
Extension Builder in Plumstead
Hello im Fredi, I am a experieced builder and would like to deliver quality work to all my customers.
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Latest review:
Restoration & Refurbishment- 26 May 2024
Great work, punctual and informative. Would hire again for sure.
BUILD SAFE LTD
Rating: 5 out of 5
Extension Builder in Plumstead
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.
Jason
Rating: 5 out of 5
Extension Builder in Plumstead
We do offer services on loft conversion, wood frames, fascias&soffit, guttering, cladding and all sort of roofs(including peachroof, flatroof etc.). Additionally we specialise in roofs, extensions, renovation and new builds. We cooperate with wide range of other specialists such as architects and engineers. Koka Carpentry&Roofing We don’t offer cheap prices but we do offer the best ones ☝️
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Latest review:
Jason and his team , completed a rear extension roof on south Croydon for me Previously had completed other projects on other properties for me Highly recommend Great person and great workmanship
Peter renovation
Rating: 3.7 out of 5
Extension Builder in Plumstead
When you need a reliable builder for refurbish or extend your property our skilled team of experienced craftsmanship are ready to help you. We can provide a tailor-made service to suit your budget and requirements!
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Latest review:
Conversions - General- 6 Oct 2025
Peter and Dan did an excellent job from start to finish. They were professional, reliable, and easy to work with. The quality of their workmanship is top-notch, and they finished everything on time and to a high standard. I’m really pleased with the results and would highly recommend them.
Seymour Building Services Limited
Rating: 5 out of 5
Extension Builder in Plumstead
Seymour Building Services would look after your complete project. We would organise all our tradesmen so the right trades are there at the right time. This leaves you with no headaches. Just one number to call for our friendly help and advice.
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Latest review:
Kenny and team did a brilliant job replacing my old lean-to porch area for a new smart extension with windows, door and even a cat flap. They were on time, organised, efficient and took away all the old materials and rubbish. Kenny was helpful when he visited and prompt in replying to all communications and supplying quotes and invoices. I am very happy with their work and wouldn't hesitate to recommend their services.
HighLine Build & Design
Rating: 5 out of 5
Extension Builder in Plumstead
At HighLine Build & Design, we deliver premium-quality construction and renovation services across London. From full property refurbishments to bespoke carpentry, electrical, plumbing, tiling and decorating, our multi-trade team handles every project with precision and care. We take pride in reliable service, honest pricing, and high-end finishes on every job — big or small.
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Latest review:
Carpentry- 7 Dec 2025
Came on time and done a fantastic job on my doors. Very tidy and cleaned up afterwards. Highly recommended!!!
Hennow Construction
Rating: 5 out of 5
Extension Builder in Plumstead
Hi, we are a small father son business with over 30 years of building experience. As both father and son are bricklayers we tend to take on jobs such as: extensions brick and block work; out buildings; garage conversions; garden walls; patios and drive ways. Formerly Owens Construction, we have now merged with close family friends to expand the brand and become Hennow Construction.
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Latest review:
Bricklaying- 24 Apr 2019
Jake and Harry did an amazing job with our front wall and fence in the rear garden. We got three quotes for the job and they were the cheapest but also came across professionally. It wasn't a straight forward job, it was was using reclaimed materials that were varying size and shapes. I was also quite particular on the look, I wanted the brickwork to match our house, they took care to match the pointing and bricks but offered advice on how we could save money whist still getting the look we wanted. They arrived everyday on time, they were reliable, honest and extremely hardworking. They also kept us in the loop throughout the work making sure we were going to be happy with the end result. I have already recommended them to friends and will use them again for our next project. Thumbs up from us!
G G Property Development Limited
Rating: 5 out of 5
Extension Builder in Plumstead
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.
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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.
S.k Building & Decorating Services
Rating: 5 out of 5
Extension Builder in Plumstead
S.K Building & Decorating Services Ltd is a London-based building company specialising in a diverse range of construction services. With a focus on delivering high-quality results, the company excels in Extension building, Property refurbishment, Bathroom installation and Kitchen installation. Renowned for their expertise and commitment to customer satisfaction, S.K Building & Decorating Services Ltd has established itself as a reliable choice for clients seeking professional construction solutions in the London area. Whether it’s expanding living spaces through extensions, revitalising properties with refurbishment, or creating functional and stylish kitchens and bathrooms, S.K Building & Decorating Services Ltd stands out as a reliable partner in the construction and renovation industry. Get in contact now for a free no obligation quote!
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Latest review:
Restoration & Refurbishment- 7 Apr 2025
Senad and his team did a great job. They completed the project quickly and left the flat and common parts clean and tidy. Really happy with their work and would recommend. Hope to use them again.
V&B LANDSCAPE
Rating: 4.9 out of 5
Extension Builder in Plumstead
Hi We are polite team and true fare builders, we have been in the business from 2014 . competitive prices. We believe in great customer service and offer our customers the best that we can in terms of planning, pricing and installing. We offer a free quotation, We are so confident in our work we are happy to give you work reference.
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Latest review:
Landscaping- 19 Aug 2019
Vladimir and his team made this project a very enjoyable experience. He understood the brief perfectly, and didn't bat an eyelid when it changed underway. I would highly recommend Vladimir.
sall construction london ltd
Rating: 4.9 out of 5
Extension Builder in Plumstead
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.
Kbah
Rating: 4.9 out of 5
Extension Builder in Plumstead
Hi all my name it Christopher, I been a general builder for the last 22 years stared of with small jobs , Now I do loft conversions , Extensions and full refurbishments . I try to approach each and every job with intentions of delivering something special , my client range from first time buyers to property developers. Please look at my work pictures and ask as many questions as you wish , happy to help
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Latest review:
Extensions- 9 Nov 2024
Came and did an excellent job in extending my box room into a larger room for a more comfortable single room. Speedy, quality work and defo knows what he's talking about. Would recommend for more work.
glb
Rating: 4.7 out of 5
Extension Builder in Plumstead
Full refurb, Carpentry, roofing, and bathrooms across London
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Latest review:
Extensions- 18 Jul 2022
Geraldo and his team are brilliant. They consistently go out of their way to do work to the highest standard and are always very professional, communicative, friendly and flexible. We couldn't be happier with our new extension!
great construction limited
Rating: 5 out of 5
Extension Builder in Plumstead
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.
Nikolas
Rating: 5 out of 5
Extension Builder in Plumstead
Hello! My name is Mr. Blaskov, and I am an experienced construction and renovation specialist. I work on a wide range of building and repair projects — from structural work to finishing touches. The services I offer include: • Installation of drywall, suspended ceilings, and partition walls • Conversion and refurbishment of attic spaces (loft conversions) • Tiling, laminate, and other flooring installations • Kitchen, window, and door installations • Construction of decking and fences • Thermal and waterproofing insulation • General construction work and home/apartment renovations I work independently or with a small team of skilled professionals depending on the project size. I always respect deadlines, keep the worksite clean and organized, and offer a guarantee on all completed work. I’m happy to provide advice on the best solutions based on your budget and preferences. Customer satisfaction is my top priority — many clients recommend me to their friends and family. If you are looking for a reliable professional for your renovation or building project, I would be glad to help! Looking forward to hearing from you! Best regards, Mr. Blaskov
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Latest review:
Extensions- 3 Apr 2026
Very professional, kept the timings and followed all requirements. Many thanks. Ana
Jusuf pashaj
Rating: 4 out of 5
Extension Builder in Plumstead
Professional painters decorating
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Latest review:
Landscaping- 23 Jun 2025
Viewed my job, booked us in. Told me what materials to buy and the didn’t turn up to the job on the day. Didn’t answer my calls. DO NOT BOOK.

Top rated Extension Builders

Our Extension Builders in Plumstead, are rated 4 out of 5 based on 21 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Plumstead?

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

Find extension builders in Plumstead with MyBuilder

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

Step 2: Compare different extension builders in Plumstead

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

Step 3: Hire Plumstead extension builders with confidence

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

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

What to ask a Plumstead extension builder before hiring?

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

An extension builder in Plumstead 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 Plumstead 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 Plumstead?

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 Plumstead 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 Plumstead 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 Plumstead

Can an extension builder in Plumstead help with planning permission?

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

Many Plumstead 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 Plumstead help with materials and finishes?

Yes, most extension builders in Plumstead 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.