Extension builders in Woolwich

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 Woolwich

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G S ELECTRICS
Rating: 4.7 out of 5
Extension Builder in Woolwich
G S Electrics are NAPIT approved Domestic electrical contractors who provide flexible, planned, reactive electrical services that are professional, trustworthy and high quality. We provide our services to domestic properties throughout London. With extensive knowledge gained throughout university, having an BEng in Electrical and Electronic Engineering. I can put both theoretical and practical knowledge into use and provide the best solutions for technical problems.
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Latest review:
Electrical- 25 Feb 2020
Gurprith called me immediately and the job was booked in for the next day. He was speedy and efficient and helped with another electrical issue at no further cost. I would definitely use his services again and not think twice to recommend him.
JKDunbarltd
Rating: 5 out of 5
Extension Builder in Woolwich
A family run construction company looking to expand through my builder, we cover all aspects of building Including extensions, renovations and refurbishments, plastering, brickwork, landscaping, decorating, groundwork’s.
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Latest review:
Extensions- 11 Nov 2024
Really positive experience working with Jamie and his team. Our building project was a single story 3m x 5m kitchen/living extension for a 1920’s London terrace house, with access to the garden only available through the house. From the start during the initial home visit survey and quotation, Jamie was 1) excellent at communicating; 2) transparent about costs and 3) proposing very good options (e.g. 2m x 1m skylight) which looks fantastic! The job included digging foundations by hand and very good awareness of the extra precautions when doing work in an old period property. The job was completed on schedule and on our budget and we are very pleased with the finished extension. 100% would recommend for anyone looking for similar type of project. Cheers.
Bricklayer
Rating: 5 out of 5
Extension Builder in Woolwich
Small bricklayers gang ready for work : Face brickwork,Block work,Garden wall's any design you like. Pointing weather struck,flash. Old stock brickwork,New build brick work, Extensions.
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Latest review:
Extensions- 1 May 2024
Vaidas and team were great. Got here early and worked solid until late. Built a 5x4m extension and done a great job. Looks good and has been approved by building control. Highly recommend.
Mulldec Construction ltd
Rating: 4.9 out of 5
Extension Builder in Woolwich
Hi ,we have been working in construction for 29 years now and have worked on all types of projects, commercial and residential. Our works range from extensions, decking, garden offices, foundations, fencing, drainage and a full host of construction works, fully insured . We take pride in our works and guarantee all our works . Please contact us for a friendly, free quotation for any external works and any advice needed. Thanks, Declan
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Latest review:
Extensions- 1 Nov 2022
A+++ would highly recommend Declan, Colin and team were brilliant, professional from start to finish, always talking through options which was a great help. Friendly, reliable, good time keeping, trustworthy, felt very comfortable having them in my house for 8 weeks. I called Declan about a little snag and he came the same day to sort it out and was very happy to do so. Extension looks great I'm very happy with everything. Would definitely hire them for any future works.
AA Build and Maintenance
Rating: 5 out of 5
Extension Builder in Woolwich
AA Building & Maintenance is a trusted London-based contractor offering professional building and property maintenance services. From plumbing and heating works to full refurbishments and reactive repairs, we provide efficient, high-quality solutions for homeowners, landlords, and property managers. We pride ourselves on reliability, transparent pricing, and delivering work that stands the test of time.
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Latest review:
Great service, prompt and efficient on time and clean. finished on time and did a fantastic job, will definatley use again and recommend to friends and family.
Dagat Ltd
Rating: 5 out of 5
Extension Builder in Woolwich
DAGAT LTD is an established family-owned property development and refurbishment company who have been successfully trading in the South East of England. Whether we are constructing a new bespoke property, beautifully re-developing a home, or carrying out extensions of all shapes and sizes, each project always receives the same thoughtful and meticulous attention to detail. We are additionally able to provide an extensive range of commercially orientated projects having worked for a wide range of industry sectors. We strive to create a mutually beneficial close working relationship with our clients and / or their management team. We can either complete a project from the initial planning stage or work from an architect’s plans. Our pride in working all the way through to a beautiful finish has been a major contributory factor in our success.
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Latest review:
Conversions - General- 3 Sep 2025
Big refurb of 1650 sq ft flat, plus building 2 additional ensuites. Initial quote seemed reasonable but then once in, costs started to rise exponentially. Some work was done well, like the building component and flooring, but finishing was poor. Painting, particularly of internal doors, was done poorly, without removal of fittings first, so lots of overpainting and insufficient prep and coats. Regrouting and redecoration of front and rear patios was done poorly, with weeds already poking through. There was damage to existing bathtubs and WCs by not protecting surfaces and pouring waste materials down the pan. Everything was an argument with constant demands for more money e.g. front door only painted one side as the other side not included under "paint door". Lots of "snagging" - I only have manual on/off control of heating and hot water as "smart" thermostat won't connect, there are odd water pressures through some fixings...and now there's a leak under one of the WCs...
Joy Design & Build LTD
Rating: 5 out of 5
Extension Builder in Woolwich
Joy Design & Build – Where every project is a promise of exceptional quality, unwavering integrity, and cutting-edge innovation. We specialize in transforming your vision into vibrant, functional spaces that truly reflect your needs and style. Whether you're dreaming of a bespoke home that captures your unique personality, a commercial space designed to inspire productivity and creativity, or a thoughtful renovation that breathes new life into your property, we are here to turn those dreams into reality. At Joy Design & Build, we take pride in our meticulous attention to detail, our commitment to sustainable practices, and our collaborative approach with every client. From initial concept to final construction, we ensure that each project not only meets but exceeds your expectations. Your vision deserves more than just a construction project—it deserves an experience that’s seamless, stress-free, and tailored to your goals. Let’s build something extraordinary together.
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Latest review:
The works was clean , neat and well organised
Best Quality Double Glazing Ltd
Rating: 4.8 out of 5
Extension Builder in Woolwich
Aluminium and UPVC manufacturers/ Suppliers and Fitters Single Doors / Double doors / French Doors / Bifold Doors / Conservatories / Roof Lanterns / Composite Doors All kind of Quality Windows and Doors at trade prices. We also deal with traders. Unbeatable prices with quality products
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Latest review:
Windows & Doors (uPVC & Metal)- 13 Jun 2024
Job done promptly and within the budget required. The window was put in place so quickly I didn’t have a chance to wipe the dust of it before it went in! Would suggest the fitter carries a cloth with him to wipe fingerprints and bits off the window before installation but really a small thing considering. Overall very happy with the job done. Thanks.
Zsolt
Rating: 4.7 out of 5
Extension Builder in Woolwich
It is a family business with 20 years of experience. We have a wealth of experience in all areas of building construction, expansion and renovation.We rarely hire more than one client, so we can allow us to complete the project from start to finish in the right quality, in the right time fame. Traders are fully trained, respected and trusted. Contact us if you want your Dream Home to become a reality.
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Latest review:
Bathroom Fitting- 22 Sep 2025
I recently had my bathroom completely renovated by Zsolt and Mario and the experience was outstanding from start to finish. They were professional, punctual, and incredibly skilled—nothing was too much trouble, and their attention to detail was second to none. One of the highlights of the project was the walk-in shower they installed, It’s beautifully tiled, and gives the bathroom a sleek, modern feel. They kept the workspace clean, communicated clearly throughout. Zsolt clearly take pride in their work, and it shows in the final result. The bathroom looks fantastic and feels like a real upgrade to the home. I wouldn’t hesitate to recommend them to anyone looking for trustworthy, high-quality builders. Thanks again, Zsolt and the rest of the team, you’ve done a brilliant job.
UQC – Construction & Refurbishment
Rating: 4.7 out of 5
Extension Builder in Woolwich
UQC is a London-based construction company specialising in high-quality residential projects, including: • House extensions (rear, side return and wraparound) • Loft conversions (dormer and hip-to-gable) • Full property refurbishments • Structural alterations (RSJs and load-bearing walls) • Kitchens and bathrooms We work closely with architects, structural engineers and Building Control to ensure all work is fully compliant and delivered to a high standard. UQC stands for Unique Quality Construction — reflecting our focus on precision, organisation and attention to detail on every project. We prioritise clear communication, well-managed sites and reliable delivery from start to completion. Based in Bexleyheath, we cover South East London and surrounding areas.
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Latest review:
Conversions - General- 4 Jun 2026
very good service
Jawad
Rating: 5 out of 5
Extension Builder in Woolwich
Jawad builds provides reliable,high quality building covering repairs, renovation and all types of building work from A-Z.
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Latest review:
Damp Proofing- 14 Feb 2026
Great communication and great work.
KB construction solutions
Rating: 4.5 out of 5
Extension Builder in Woolwich
.Kitchen Fittings .Loft Conversion .Brick Work/ Skimming .Plastering/Plumbing .Wall & Floor Tiling .Gardening/ Fencing .Bathrooms .Wood Flooring .Extensions
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Latest review:
Extensions- 24 Apr 2021
Kujtim, working with his glazers, created a bespoke porch with a glass roof just as we asked. We were impressed with the finish of the internal plastering and Kujtim was able to come to our rescue one evening when we became locked outside the newly installed porch door. Although the project took longer than was anticipated we are happy with the quality of the finished product.
JS Brickwork
Rating: 5 out of 5
Extension Builder in Woolwich
We offer a professional and conscientious service where quality and customer satisfaction comes first. We undertake all masonry projects that include brickwork, blockwork, extensions, garden/boundary walls and house building. We also have expertise in carrying out restoration and refurbishment of listed and English Heritage buildings including specialist pointing such as weather struck and lime mortar applications, use of reclaimed bricks, arch work and stonework.
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Latest review:
Extensions- 2 Nov 2018
Building a 2 storey rear extension and hired Jamal to do the Block work. Initial ground storey heavy Hollow block walls for the 3 x 3m extension completed in only 3.5 days by Jamal himself with no extra help. Hardworking young guy. I was nearly bedbound with sciatica and in great pain and he immediately offered to source and buy on my behalf extra blocks required to relieve further stress on me. Very helpful, reasonable and understanding. Explained anything I asked him diligently. Knows his job and I will be calling him back when I have the money to complete the block work for the 2nd storey.
Mayle Brickwork
Rating: 5 out of 5
Extension Builder in Woolwich
I’m Charlie, a bricklayer with 7 years of experience in the construction industry. Over the years, I’ve gained a deep understanding of my craft, from laying solid foundations to creating intricate brickwork. I take pride in delivering high-quality results with precision and hard work. This year, I’ve decided to take the next step and start my own business. I’m excited to bring my experience and dedication to new projects, offering good quality bricklaying services
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Latest review:
Bricklaying- 12 Aug 2026
Tidy work, great communication highly recommend!
Red & Black
Rating: 5 out of 5
Extension Builder in Woolwich
Hi My name is Irdi Me and my team we are taking any job
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Latest review:
Carpentry- 27 Oct 2024
Amazing work ethic, very polite and punctual and did an amazing job. Definitely recommend and use again. Thank you.
great construction limited
Rating: 5 out of 5
Extension Builder in Woolwich
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.

4.1

Top rated Extension Builders

Our Extension Builders in Woolwich, 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 Woolwich?

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

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

What are the hourly rates of extension builders in Woolwich?

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

Find extension builders in Woolwich with MyBuilder

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

Step 2: Compare different extension builders in Woolwich

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

Step 3: Hire Woolwich extension builders with confidence

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

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

What to ask a Woolwich extension builder before hiring?

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

An extension builder in Woolwich 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 Woolwich 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 Woolwich?

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 Woolwich 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 Woolwich 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 Woolwich

Can an extension builder in Woolwich help with planning permission?

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

Many Woolwich 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 Woolwich help with materials and finishes?

Yes, most extension builders in Woolwich 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.