Extension Builders in Deptford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (20 reviews)

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Some of our top rated extension builders in Deptford

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JEMS & ROCK CONSTRUCTION
Rating: 5 out of 5
Extension Builder in Deptford
We are a small but rapidly growing business, with an increasing portfolio of work, completed to a high standard. We also have an equally growing list of satisfied customers. We are confident in what we do and will only undertake work we are sure we can deliver to your expectations and our high standards.
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Latest review:
Plastering- 13 Apr 2021
Very pleased with the work done, punctual and friendly, cleaned up when finished, would highly recommend
LLC projects limited
Rating: 5 out of 5
Extension Builder in Deptford
At LLC PROJECTS LTD, we deliver high-quality building and renovation services across London, Surrey, and Hampshire. With over 16 years of experience in the construction industry, our team specialises in all aspects of building works, maintenance, and plumbing — from full refurbishments and extensions to kitchen and bathroom installations. We pride ourselves on excellent workmanship, attention to detail, and reliable project management from start to finish. Most of our work is carried out in-house to ensure consistent quality and high standards. Whether it’s a small repair or a large-scale project, we approach every job with professionalism, transparency, and care. Contact us today to discuss your next project and see how we can bring your vision to life
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Latest review:
I recently hired LLC Projects Limited to refurbish my ground floor and add a new bathroom, and I couldn’t be happier with the results. From start to finish, the team was professional, reliable, and truly cared about delivering quality work. The new bathroom looks amazing, and the ground floor transformation exceeded my expectations. Communication was great throughout, and they kept everything on track and tidy. The crew was friendly, and they handled any concerns I had quickly. I’d definitely recommend LLC Projects Limited for any home improvement work—they’ve earned my trust, and I’ll be calling them again for future projects
Calin Coroian
Rating: 5 out of 5
Extension Builder in Deptford
Hi,my name is Calin Coroian i m a General Builder, new and maintenance,i do all other aspects of building work with 20 years experience and passion on my work to make all my customers happy.I have a professional team of hard workers.I l will pleased to get you in touch with my previous customers. I look forward to hear from you. Many thanks.
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Latest review:
Plastering- 17 Jan 2017
Good fast worker. Nice guy.
Eriglen
Rating: 5 out of 5
Extension Builder in Deptford
Construction jobs , plastering & painting , plumbing , carpentery , handyman jobs
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Latest review:
Plastering- 1 Dec 2020
Great person very punctual and excellent work very happy with eriglen and will defo use him again in the future for other works
Fatjon Ndrevataj
Rating: 5 out of 5
Extension Builder in Deptford
Fatjon Renovations ltd. Own company, van and tools. Painter and decorator, kitchen and bathroom fitter, tiler, plasterer, carpenter, with years experience working in the London area.
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Latest review:
Kitchen Fitting- 16 Feb 2026
Fatjon did a great job on our kitchen and took good care of his surroundings.
NA
Rating: 5 out of 5
Extension Builder in Deptford
Skilled, tidy bricklayer. Highly competent in building, pointing and restoration. Garden walls, extensions, new builds, etc
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Latest review:
Jack built a brick buttress to structurally support my garden wall. Originally I was going to rebuild the entire wall, but Jack’s advice to build a buttress saved me a lot of money! The job was done quickly, affordably and to a high standard. Would highly recommend.
Cammp
Rating: 5 out of 5
Extension Builder in Deptford
Welcome to KSG Comfort – Your Trusted Partner in Construction & Renovation Across the UK With over 10 years of experience in the construction and renovation industry, KSG Comfort has built a solid reputation for delivering high-quality craftsmanship and exceptional service. Our team is made up of highly skilled and specialized professionals, each dedicated to turning your vision into reality with precision and care. We understand that choosing the right company for your project is crucial. That’s why we invite you to explore our portfolio of completed works to see the quality we stand for. While this is a new account, our reputation speaks for itself – feel free to search for KSG Comfort on Google and discover more about our work and satisfied clients. Whether you are planning a home renovation, a full refurbishment, or a new build, KSG Comfort is here to make the process smooth, professional, and stress-free. Your comfort is our priority – let’s build your dream together. If you would like more information, please visit our website or find us on Google by searching our name (.com). Alternatively, you can request the link via private message.
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Latest review:
Very happy with the work. The painter was punctual, professional, and kept everything clean and tidy throughout the job. The finish is excellent, with great attention to detail. Communication was clear from start to finish. I would definitely recommend and use again.
Ionut
Rating: 5 out of 5
Extension Builder in Deptford
Hello, I'm Ionut handyman, I also do tile and floor work, as well as paving and driveway work.
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Latest review:
Landscaping- 7 May 2026
“We recently had our landscaping redone along with new turf installation, and the results were excellent. The team was professional, punctual, and paid great attention to detail from start to finish. They completely transformed the garden, leaving everything neat, tidy, and looking amazing. The new turf was laid perfectly and has already made such a difference to the overall appearance of the space. Communication throughout the project was clear and friendly, and the workmanship was top quality. Highly recommend to anyone looking for reliable and skilled landscapers.”
Adamus and Contractors Limited
Rating: 5 out of 5
Extension Builder in Deptford
Adamus & Contractors Limited We’re a friendly, hands-on building company with 10+ years’ experience, specialising in refurbishments, loft conversions and extensions. Whether you’re opening up a space, extending your home, or bringing an older property back to life, we handle everything from start to finish. We’ve got an in-house architect and interior designer, so we can take care of the planning, design and build all under one roof — making the whole process a lot easier for you. From steels and structural work right through to the final finishes, we use a solid team of trusted trades and take pride in doing things properly. We’re used to working in people’s homes, so we keep things tidy, organised and running smoothly. We keep it simple: clear quotes, honest advice, and no surprises. If anything changes along the way, we’ll talk it through with you first. You bring the vision. We bring the standards. At the end of the day, we just focus on doing a proper job and leaving you with a space you’re genuinely happy with.
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Latest review:
Restoration & Refurbishment- 22 Jul 2026
Hired for a kitchen refit and other works including removing a wall to open kitchen out. Understood the job, and where appropriate offered helpful suggestions. Excellent communication throughout, I was always aware of the current status of the job. Work performed exceeded expectations - and I hope they will be free next time I have works that need doing.
Building life uk limited
Rating: 4.8 out of 5
Extension Builder in Deptford
My skills are :Tiling :brickwork :extensions :loft conversions :partition : painting :carpentry E.t.c :you name it we do it I've got a team together who are hard working men who are very motivated on working together with our clients we always keep everyone who we do work for happy and still get recommended I work references that I can provide (We haven’t been online at my builder over a year now but we have been working out from my builder we got lots of work to prove)
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Latest review:
Bathroom Fitting- 9 Oct 2018
Ozay arrived on time and finish the job to a high standard I've used the shower for over a month now and no leaks! Would use again!
First Int. Project Limited
Rating: 4.4 out of 5
Extension Builder in Deptford
Back on MyBuilder after 7 years !!! Design and build Architectural team Structural engineers team Build and construction Our business is based on TRUST | QUALITY | CARE Our company cover the following trades: -steel erecting - steel structures -roofing - loft conversions -plasterers - internal skimming -painters and decorators -kitchen installers -bathroom fitters -bricklayers - for extensions -landscapers -electricians -gas engineers -carpenters - floor, doors, structural -windows installers -bespoke furniture
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Latest review:
Bathroom Fitting- 15 May 2017
We hired Inside/Outside to re-do our bathroom. New sink, bath, toilet, tiles, lower ceiling, re-hang the door and move the radiator. They were polite, honest, professional and very hard working. When they came round to quote they were noticeably more thorough and showed more attention to detail than others. Their quotes were very competitive, their work was good and they removed all the rubbish as well. They also came back afterwards to check everything was working and to deal with a couple of 'snags'. We will be using them again.
Leo81
Rating: 5 out of 5
Extension Builder in Deptford
I am good at what I do and I'll do my best to get your house to look the way you want it to!
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Latest review:
Restoration & Refurbishment- 19 Apr 2025
Positively, certain aspects of the finishing, particularly tiling, were carried out to a good standard. However, the overall experience was mixed due to significant issues. There were notable challenges during the project involving basic logistics and site management, leading to considerable inconvenience that seemed avoidable. Furthermore, the quality of workmanship was inconsistent; while some parts were good, other areas involving fittings and fixtures showed a lack of attention to detail in the finish, requiring later adjustments. Communication during the process could also be difficult, particularly regarding problem-solving and planning for materials. While we appreciated the parts done well, the project was let down by these inconsistencies and process issues, leading to some ongoing snagging and disappointment.
E.E Builders & Decorators
Rating: 4.7 out of 5
Extension Builder in Deptford
With over 12 years of experience Think Beyond LTD has earned a high reputation with our professional, high standard finish, clean and tidy way of work. Loft conversions , house extensions, full house refurbishments, bathroom and kitchen fitting and much, much more ! We cover all London areas.
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Latest review:
Painting & Decorating- 1 Jul 2017
I would highly recommend these guys. They did a very high quality job decorating my lounge, dining room, hallway and stairs. They started the job on time, worked through the weekend to get the job finished in good time, left the place clean and tidy at the end of every day, and cleaned up immaculately at the end of the job. The price was also very competitive compared with other quotes I received. I hope they are available again in a few months time when I have more decorating that needs to be done.
K&L Construction
Rating: 5 out of 5
Extension Builder in Deptford
We are a group of experienced contractors specialised in brick work, block work,tiling,rendering,plastering&decorating also in structure work,installing new beams, forming new floor levels & stud walls.We are more than happy to take on board all types,sizes & shapes of works & well prepared for a challenge.We as a team cover all building sector(BUILDING,PLUMBING,ELECTRIC,DECORATING,ALL IN ONE & MORE) so please don't hesitate to give us your trust and we promise you that we will deliver
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Latest review:
Conversions - General- 21 Jun 2025
Working with Petrit was a very pleasant and enjoyable experience. He and his team are friendly and open for discussions. They’re quick, affordable, and help with decision making. Would hire again! Have to say as well, as a woman, Petrit and his team treated my husband and I equally, unlike my experience with other tradesmen who direct all their conversations to the men. Petrit knocked opened up our living kitchen area, laid herringbone floors, replastered the property, installed new radiators, added a built in ladder to our attic, and re did our bathroom. He also helped us match the floor boards from an existing room and helped us source front and back doors for much better price than what we were getting quoted in East London. The painting of the entire house was done in a rush as we needed to move in, so the attention to detail fell down a little here compared to everything else that was done, but I wouldn’t hesitate to work with Petrit again!! After and before pics included!
Handy Man - Radek help you
Rating: 4.7 out of 5
Extension Builder in Deptford
There is always something that needs doing!
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Latest review:
Restoration & Refurbishment- 17 Oct 2019
Radek is a friendly hardworking young tradesman,he turned as he agreed and completed the various jobs I originally asked him to do, my wife & I were so p[eased with his work we asked him to build an extension garden room for us.he has nearly finished that and we are very pleased not just with the quality but also the cost.we would not hesitate in using him again or recommending him to others.
Ionut
Rating: 5 out of 5
Extension Builder in Deptford
Hi, I’m Jon (Ionut) Bursuc — a qualified and fully insured general builder with 20+ years of hands-on experience, specialising in house extensions and structural conversions across residential properties. I carry out rear extensions, side and wraparound extensions, loft conversions (including dormers), garage conversions, knock-throughs, and full internal reconfigurations. Experienced with structural steel installation (RSJs) and working from drawings or building control requirements. I manage projects from start to finish — groundwork, structure, roofing, first fix, and final finish — coordinating all trades to keep work progressing efficiently, safely, and to a high standard. Known for reliability, clear communication, tidy sites, and transparent pricing. I aim to minimise disruption while delivering durable, high-quality results that add real space and value to your home. Free quotes provided. All work carried out professionally and completed on schedule wherever possible.
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Latest review:
Extensions- 2 Jan 2018
John and his team were fantastic!! Really helpful, polite, good problem solvers, reliable and always reachable and ready with advice. We’re so happy with our extension and would certainly hire John again.

3.8

Top rated Extension Builders

Our Extension Builders in Deptford, are rated 3.8 out of 5 based on 20 reviews from customers like you.

Quality screening

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

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

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

What are the hourly rates of extension builders in Deptford?

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

Find extension builders in Deptford with MyBuilder

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

Step 2: Compare different extension builders in Deptford

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

Step 3: Hire Deptford extension builders with confidence

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

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

What to ask a Deptford extension builder before hiring?

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

An extension builder in Deptford 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 Deptford 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 Deptford?

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 Deptford 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 Deptford 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 Deptford

Can an extension builder in Deptford help with planning permission?

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

Many Deptford 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 Deptford help with materials and finishes?

Yes, most extension builders in Deptford 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.