Extension Builders in Lower Sydenham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (20 reviews)

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Some of our top rated extension builders in Lower Sydenham

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A.I.M Property Improvements Ltd
Rating: 4.9 out of 5
Extension Builder in Lower Sydenham
We are a family ran building company with many years experience combined. Our team are professional and hard working, we aim to provide the best service at competitive rates to all our customers whether the job is big or small. FREE QUOTES with no obligation! What we do: • Kitchen fitting • Bathroom fitting • Refurbishments • Extensions • Loft conversions • Carpentry • Plumbing • Electrics • Painting & decorating • Plastering & rendering
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Latest review:
Restoration & Refurbishment- 25 Sep 2025
We were over the moon with our kitchen once Zihni and his team had finished. We had never used this firm before but we will definitely be using them again for future projects. Zihni is calm, knowledgeable, and went over and beyond in helping us not just complete our kitchen project, but in helping us move into a new home smoothly. We are also really appreciative of the rest of his team, as they were all so serious, professional and perfectionists. Zihni's communication was probably the single reason why the completion of our kitchen was such a success.
Nice Design & Build
Rating: 5 out of 5
Extension Builder in Lower Sydenham
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.
Pracus
Rating: 5 out of 5
Extension Builder in Lower Sydenham
hello I paint and renovate houses outside and inside the house I work very carefully so that every customer is satisfied and happy looking at the work done by me I value cleanliness accuracy and trust I am nice and communicative open I try to do my work as best as possible I will make every customer happy. If you want me to do a job for you, call me and you will not regret it
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Latest review:
Painting & Decorating- 1 May 2026
Radik was absolutely faaaaabulous! From the get go he was very proactive and good with his communication skills. He initially came to paint, but there was more work to be done and he was happy to do it. He always was able to resolve any issues in the property. He is very passionate about his work. I would highly recommend Radik. He is the best 👌
Hampton Equity Ltd
Rating: 5 out of 5
Extension Builder in Lower Sydenham
Hampton Equity is a specialist home refurbishment company delivering high-quality bathroom fitting, kitchen installations, and full residential property renovations. With a strong focus on craftsmanship, detail, and client satisfaction, Hampton Equity transforms living spaces into functional, stylish environments tailored to each homeowner’s vision.
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Latest review:
Good communication and clear timelines. Thanks SW16
URBAN SPACE BUILDING & PLUMBING LTD
Rating: 5 out of 5
Extension Builder in Lower Sydenham
We are a well-established local building company with professional tradesmen. We specialise in all aspects of residential building works and refurbishments such as bathroom, kitchen & full refurbishments, as well as loft conversions & extensions. We have an in house team of experienced and professional tradesmen with skills to complete any project to high standards, on time and within budget. All our work is guaranteed, and we are happy to supply references on request.
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Latest review:
Extensions- 19 Apr 2021
Michael and the team were really enthusiastic and professional throughout. The standard of finishes throughout the project is really high and the guys went the extra miles to get the project finished on time. Michael has also been great with coming round to sort any "teething problem" promptly and helping out with some follow up works.
Ed’s loft conversions Ltd
Rating: 5 out of 5
Extension Builder in Lower Sydenham
We specialise in loft conversions, Extension to a complete house refurbishment.
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Latest review:
I engaged Edi to work on a full renovation and refurbishment of a 4 bedroom detached house with front and back gardens on Blackheath’s Cator Estate. Edi did an extensive amount of work, including stripping out; plumbing; plastering; windows installation; carpentry; and decoration. In addition, after commencing the property work, once the scaffold had been erected, following sensible advice, Edi and his team replaced the roof and fully insulated the attic; fitted additional electric points; rebuilt the garden patio; and replaced the flooring throughout, in addition to other important jobs including re rendering and pointing of chimneys, building new wardrobes in the main bedrooms; and upgrading the radiators. A new kitchen, and two new bathrooms have been fitted. The kitchen redesign meant knocking through a wall with the lounge to create a larger space. Edi is a highly skilled craftsman, who thinks creatively as he works to make best use of the space, including shelf fittings, and additional lighting for example. He has built some beautiful wardrobes, and the internal decorations have brightened up what was previously a rather shabby looking house. In addition to the above, I wish to commend Edi for his professionalism, courtesy, and passion for doing the best work possible. On all the site visits I attended, and every time I spoke with him on the phone, it was striking how much he cared about the work that he was doing, his desire to ensure that the house would look the best. I always left site visits with the feeling that he cared so much about the house that he could be safely relied on to give the best advice to enable us to make the right decisions. I also noticed that Edi and his team would take the upmost care to keep the property safe, tidy and in good shape throughout the project. He can be fully trusted to look after any site he works on. He is intelligent and careful when it comes to safety and security. It has been a pleasure for Edi and his team to work with us over a period of around 6 months, and he did so much to reduce the stress of a significant project so that we could always rely on him to work methodically, patiently and sensibly, and to make best use of the resources available. His pleasantness shines through, and everyone I know who has spoken to him has always provided me with the most positive feedback I have no hesitation in recommending Edi to anyone who wishes to engage him for future projects, and is most deserving of the good words that I and others that work with him have to say about him.
Nik Lofts & Extensions LTD
Rating: 5 out of 5
Extension Builder in Lower Sydenham
General works loft extension,extension work.
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Latest review:
Kitchen Fitting- 19 Mar 2024
Highly skilled, professional and courteous Nik responded quickly to the job request and promptly confirmed the appointment for doing the work. During the initial discussion he did not try to push for un-necessary changes. He completed the work as per the requirement even going out of his way to source parts that were not matching. The work was fiddly and took longer than expected but Nik was professional about it and persisted with it on the committed times and cost. On completion, Nik tested everything was in order and left everything neat and tidy. We are looking forward to working with Nik again on the next set of changes in our house.
Justas Kusak
Rating: 5 out of 5
Extension Builder in Lower Sydenham
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.
Thima Green Ltd
Rating: 4.9 out of 5
Extension Builder in Lower Sydenham
Welcome to Thima Green Limited – Your Trusted Local Experts for Loft Conversions and Home Extensions in Bromley Thima Green Limited is a highly trusted loft conversion and home extension company, proudly based in Bromley. We specialise in providing a wide range of Checkatrade-approved building services, delivering complete solutions from start to finish. Whether it’s loft conversions in Bromley and Beckenham, home extensions, new builds in Chislehurst, or outbuildings, renovations, kitchens, bathrooms, and architectural work, we’ve got you cov-ered. At Thima Green Limited, no job is too big or too small. Our team is highly professional, confident, and dedicated to delivering the highest standard of service in every project we undertake. With over 15 years of experience in the construction industry, our Checkatrade-approved tradesmen have completed numerous successful projects across Bromley and the surrounding areas. Whether you’re after a loft conversion in Bromley or a home extension in Beckenham, we are here to support you from the initial design stage right through to project completion. Our services are designed to meet your specific needs, ensuring we help create your perfect home. We would love the opportunity to help you create your dream home. If you’d like to see ex-amples of our previous work, just let us know—we’d be happy to share them with you. DBS Criminal Record Check At Thima Green Limited, we place the utmost importance on trust and safety. All our tradesmen undergo a DBS (Disclosure and Barring Service) check, ensuring there are no convictions, cautions, reprimands, or warnings. This gives our clients complete peace of mind while we work on their homes. Let Thima Green Limited, your trusted Bromley construction experts, turn your ideas into reality. Why Choose Thima Green Limited? • Specialists in Loft Conversions and Home Extensions in Bromley • Checkatrade-approved builders with 15+ years of experience • Offering a wide range of building services from loft conversions and extensions to outbuildings and renovations • Committed to quality craftsmanship and sustainable building practices
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Latest review:
Bathroom Fitting- 23 Nov 2014
Pavels did a very good job on our bathroom. He followed our instructions carefully and the finished product is just what we wanted. His communication was excellent throughout, responding promptly to emails and text messages (and telephone calls). Pavels is friendly and nice to deal with, and offered good advice, especially at the initial visit in relation to the shower mixer we had purchased (we purchased something that would be problematic to fit, and so returned it and bought something more appropriate), we appreciated his honesty on this and in relation to other matters arising throughout the project. Pavels (+ his assistant) worked very hard to finish the bathroom as quickly as possible, arriving early everyday at the agreed time. A few issues arose in the fitting process (e.g. The bath legs needed to be adjusted to allow for the tiled bath panel to be fitted) but Pavels addressed this and other problems quickly and effectively. The mess and dust was a little intrusive at times, and we sometimes felt that this could have been better controlled, but we understand that this was somewhat unavoidable and only temporary. I would definitely recommend Pavels and would be more than happy to use him again in the future.
ZD Builders Ltd
Rating: 5 out of 5
Extension Builder in Lower Sydenham
We offers a full range of high quality building services in South East London. Our team consists of trusted, competent and highly skilled tradesman with over 20 years of experience who all provide a fantastic service. We are fully insured and follow all of the necessary building regulations and guidelines meaning that your home or place of work is built the very best that it can be. We undertake all the works listed below • -Refurbishment • Carpentry, fitting skirting boards, fixing doors and architrave, boxing of pipes, repair windows, -wood floor laying and sanding, fitting locks etc. , • building wardrobes/cabinets • kitchen fitting • -Bathroom fitting • Painting/decorating/wallpapering • - tiling walls and floor • -Plastering/rendering • Plumbing & Heating • Electrical Work-Re wiring • RSJ (steel beam) installation • Wall Partitioning
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Latest review:
Carpentry- 19 May 2025
Professional, reliable and takes pride in his work
Mario Services
Rating: 5 out of 5
Extension Builder in Lower Sydenham
Mario & Alex Construction LTD specialise in construction and building services, complete property refurbishment, house extensions and loft conversions. Provides unmatched customer service. Our commitment to small,hudge integrity, providing the highest value and satisfied customers, has been the ingredient that has fueled our growth from the beginning. We ensure that all our work is professionally managed so that the result is of outstanding quality, cost-effective.
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Latest review:
Bathroom Fitting- 20 Jan 2023
We highly recommend Mario & his team. They fitted a new kitchen & bathroom to a really high standard within a short, timeframe. They work hard, are friendly, professional & honest, my neighbour even commented on how considerate they were! Upon first meeting Mario we were impressed by how organised he was. He arrived on time with the description we’d posted on my builder & went through it methodically. We had A LOT of questions! He answered all of them & didn’t rush us. We received a competitive quote within a day as promised. It included everything we discussed & he quickly answered our follow up questions. We wanted an accurate idea of the cost of electrical work & Mario arranged for his electrician to come & inspect/quote before we’d appointed Mario the job. Our kitchen & bathroom is complicated, with lots of difficult angles. Damp, unlevel floor, unlevel windows, a low ceiling were uncovered in the bathroom. Mario did well to identify solutions, giving us expert advice. Pipes were neatly chased into the wall. Underfloor heating & LVT, tiling, grouting & painting all done to a very professional finish. He kept us informed of progress, checked our preferences & was patient when we had supply delays, finding ways to ensure the job finished on time enabling us to move from our temporary accommodation back home in time for Christmas. He promptly fixed some minor issues after the job finished. We highly recommend Mario & would use him again.
Cornel Construction Services
Rating: 5 out of 5
Extension Builder in Lower Sydenham
Hi there, my name is Cornel,I am a self employed general builder based in Bromley. I have a professional team able to cover all aspect of building. I pride myself in delivering the best standard of both build and customer service and I will work with you from start to finish to make sure you achieve the very best outcome. References are available from my many satisfied customers.
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Latest review:
Extensions- 16 Nov 2019
I was very lucky to find Cornel for my building work. His team were extremely hard working, efficient and respectful and the work was done very quickly and to a high standard. Most estimates for the build time were between 8 and 10 weeks - my work was fully complete in 6 weeks. Building control passed all stages of the work without any issues. He is equally proficient at the plumbing, electrics, flooring, tiling and decorating as the heavy building work, even restoring my garden so that it looked better than it did before the build. I am in a conservation area with close neighbours on all sides and Cornel minimised the disruption as much as possible and made efforts to keep everyone happy. His attitude to overcome problems and make sure that in the end you are a happy client drives his approach to the work. I had 10 builders quote for the job and Cornels quote was very competitive and the final costs were exactly as we had agreed. I had spoken to a number of his previous clients before going ahead and they were all very impressed with his work and had good experiences. It can be a difficult decision to choose a builder if you have no previous experience and given the potential for things to go wrong - but we made the right choice. I wouldn't hesitate in recommending Cornel and his team.
M Murphy Build
Rating: 5 out of 5
Extension Builder in Lower Sydenham
Hello! My name is Mick. I have many years experience in all areas of construction. I enjoy what I do & love creating new spaces for people, so it has to be of high quality or else there would be no satisfaction in it for me! I have done extensions, sunrooms, renovations, lofts, bathrooms, kitchens and new builds.
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Latest review:
Extensions- 21 May 2019
Excellent workmanship, completed extension with bathroom in good time. Very pleased with the work!
Safeway Build Ltd
Rating: 5 out of 5
Extension Builder in Lower Sydenham
At Safeway Build Ltd, we pride ourselves on delivering exceptional craftsmanship and reliable service in every project we undertake. Led by Florin, a highly trained professional with over 20 years of experience in the construction industry and a proud member of the Federation of Master Builders (FMB) since 2014, our company is built on trust, quality, and attention to detail. Working alongside trusted electricians and plumbers, we offer a complete service that ensures every aspect of your project is handled with care and expertise. Much of our success has come from referrals and repeat clients, a testament to the satisfaction and confidence our customers have in our work. At Safeway Build Ltd, we don’t just build — we build lasting relationships, turning your vision into reality with professionalism, transparency, and dedication. Whether you are looking for loft conversions, extensions or a refurb, all our services are carried out carefully, efficiently and to an exceptionally high standard of quality. We are happy to undertake any domestic work. At Safeway Build Ltd, no job is too big or too small.
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Latest review:
Kitchen Fitting- 10 Feb 2026
Florin and team were a joy to work with. Very communicative and worked to a great timeframe. Lots of little extra jobs were completed at no extra charge. Cost for job was reasonable and the tiling was immaculate - would definitely use Florin again. Would highly recommend!
Inspire Construction Solution LTD
Rating: 5 out of 5
Extension Builder in Lower Sydenham
We specialise in Loft conversion, House extension and all kinds of buildings works
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Latest review:
We did a lot of research ahead of our loft build, and spoke to customers of the companies we looked at. We were impressed with Toma and her team from the outset, especially in terms of clarity and communication. We sat down with the project team at the start and walked through the week-by-week plan for our build, then a whatsapp group and weekly meets meant we knew exactly what was happening throughout. Our endless questions were responded to swiftly. Additional optional trade-ups (eg top-hung windows, larger bathroom window etc) were discussed and explained with context, sound advice (and clear pricing where nec) but always still optional. Toma's communication with the teams also seemed strong and continuous, with materials always arriving in time and ahead of when needed, no down-days etc - and importantly, the teams all seemed happy and were just lovely people to have around. I realise with hindsight too that the team's care and workmanship really put them a cut above many others in my area and the project remained on schedule. I wouldn't hesitate to recommend ICS for the whole package and in fact we've also chosen to use them again for a kitchen extension.
FERARU GROUP BUILDERS LTD
Rating: 4.7 out of 5
Extension Builder in Lower Sydenham
I've worked in the UK for 8years now and I do my job to a high standard.
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Latest review:
Extensions- 15 Jun 2024
My advice is avoid. Poor communication Poor workmanship Poor quality finish Create 'issues' during build to make you pay more than quoted Left project incomplete We pursued through the Court and won the case, but of course he is unable to pay, so we are pursing further through the Court. He will respond to the review with some excuse, but there is absoultley no excuse for poor workmanship and quality. Happy to share pictures and videos on request.

Top rated Extension Builders

Our Extension Builders in Lower Sydenham, are rated 4 out of 5 based on 20 reviews from customers like you.

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

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 Lower Sydenham 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 Lower Sydenham who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Lower Sydenham?

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

Find extension builders in Lower Sydenham with MyBuilder

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

Step 2: Compare different extension builders in Lower Sydenham

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

Step 3: Hire Lower Sydenham extension builders with confidence

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

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

What to ask a Lower Sydenham extension builder before hiring?

Before hiring an extension builder in Lower Sydenham or extension building company in Lower Sydenham, 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 Lower Sydenham?

An extension builder in Lower Sydenham 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 Lower Sydenham 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 Lower Sydenham?

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 Lower Sydenham 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 Lower Sydenham 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 Lower Sydenham

Can an extension builder in Lower Sydenham help with planning permission?

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

Many Lower Sydenham 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 Lower Sydenham help with materials and finishes?

Yes, most extension builders in Lower Sydenham 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.