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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JS Brickwork
Rating: 5 out of 5
Extension Builder in Lower Sydenham
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.
Ricardo
No reviews yet
Extension Builder in Lower Sydenham
Brick work ,roof, timber work , tile,tiler
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Louisduckettbuilding LTD
Rating: 5 out of 5
Extension Builder in Lower Sydenham
I run a construction company, with over ten years of experience covering all aspects of construction and landscaping. we cover anything from as small as plasterboarding too extensions, we have a brilliant team of carpenters/builders which can carry out anything you desire from bespoke decking to fully functional garden room!
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Latest review:
Decking- 1 Sep 2020
What a great experience we had with Louis. He is honest and gets the job done efficiently with great attention to detail. He did such a good job with our terrace. We had some problems that really needed a professional solution and Louis planned and executed it brilliantly. Instead of looking for excuses for things that could be a problem Louis had a great solution for everything we came across and was positive the whole time. Would highly recommend Louis, we already have him booked in for more jobs.
DW BUILD IT
No reviews yet
Extension Builder in Lower Sydenham
With 20+ years in the industry our team is ready to tackle all aspects from large to small. This family oriented group work with a client first outlook and aim to accommodate their needs. From weekly maintenance to full extensions/ and or loft conversion, our history is proven.
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Titan construct
No reviews yet
Extension Builder in Lower Sydenham
Over 8 years of experience doing commercial and residential buildings in London. Started by my own to build a business to deliver quality work at the right price on time.
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M&I builders
Rating: 4.7 out of 5
Extension Builder in Lower Sydenham
M&I Builders Do it once,do it right! With over of 15 years of experience we can offer the package to provides stress free, time saving and cost effective solution to our clients to make the renovation project as easy as possible, with clear costing and progress plan..We are fully insured and considerable trade people fully qualified by BS to make your project up to current Standards. Your home is very important to us and measures we take to protect it is in the highest standards.
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Latest review:
Tiling- 24 Jul 2024
Job done perfectly, both builders are very professional, they care about the work and very experienced. Everything went smoothly with the tiling and flooring. They even installed extra kitchen cupboards:) Thank you both. I will be in touch for other jobs in the future. And recommended to my family
Sadia
Rating: 5 out of 5
Extension Builder in Lower Sydenham
"Stylish Kitchen & bathroom Fitting Service with prices guaranteed between £4000 to £5000, you can trust us to deliver top-notch service Transform your kitchen into a modern masterpiece with Quality Builders Limited! Our reliable team specializes in fitting any kind of stylish Wren B&Q kitchen, complete with gas cooker, washing, and cooking machine connections.
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Latest review:
Quality Builders completed a remarkable domer and loft conversion for us on 2/10/2023, and we couldn't be more pleased with the results. From the outset, their professionalism and attention to detail were evident. The initial consultation was thorough, and they took the time to understand our vision for the space. Throughout the project, communication was excellent, with regular updates on progress and any necessary adjustments. The craftsmanship displayed by Quality Builders was exceptional. Every aspect of the conversion, from structural work to finishing touches, was executed with precision and care. Their team of builders and contractors demonstrated expertise and skill, resulting in a finished product that exceeded our expectations. Not only did Quality Builders deliver on time, but they also adhered to budgetary constraints without compromising quality. Their transparency and honesty throughout the process gave us peace of mind and confidence in their abilities. The transformation of our space is truly remarkable. The addition of the domer and loft has added both aesthetic appeal and practical functionality to our home. The new space is light-filled, spacious, and seamlessly integrated with the existing structure. Overall, we cannot recommend Quality Builders highly enough. Their commitment to excellence, attention to detail, and professionalism set them apart in the industry. If you're considering a home renovation project, look no further than Quality Builders for exceptional results.
Simply Extensions and Lofts Ltd
No reviews yet
Extension Builder in Lower Sydenham
We're specialist’s in house extensions, refurbishments and Loft conversions in South London and all surrounding suburbs, with the aim to deliver. Everyone that we use for finishing, is a trade. This gives you a very high quality finish that is seldom achieved by a 'General-trade'. We are fast, clean and produce showroom quality. Our individual professionals are more than just people we work with, they are people we know. We make or exceed our deadlines to ensure client satisfaction!
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365 BUILDING LTD
Rating: 5 out of 5
Extension Builder in Lower Sydenham
At 365 Building, we focus on quality over quantity. With many years of experience across a wide range of construction and carpentry projects, we take pride in delivering work that is done to a high standard, completed on time, and kept clean and tidy throughout. What We Do We offer a full range of building services, including: • Carpentry & woodwork • Kitchens & renovations • Flooring & doors • Roofing • Extensions • General building and property improvements We approach every project with care, precision, and professionalism—whether it’s a small repair or a full home improvement. Why Customers Trust Us Our customers appreciate our attention to detail, respectful working style, and strong workmanship. We aim to make every client happy, and many of our projects come through recommendations from homeowners who value the quality of our work.
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Latest review:
Hard Flooring- 23 Jan 2026
Great and honest work, very quick and flexible. Would 100% recomend
Metro builders Ltd
Rating: 5 out of 5
Extension Builder in Lower Sydenham
Our company undertakes newly built projects , complete refurbishments and property extensions. We have done a wide range of work for commercial properties. For example Hotels, Restaurants, NightClubs and Spas. The company works as a main contracter and our work is of exceptional quality. We are looking forward to be working together.
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Latest review:
Ionut and his team helped me with the garage conversion at my house. My initial plan was to utilise the garage as an office space. In the initial meeting, Ionut suggested utlising the space to build a guest bedroom with ensuite as well as an office. I was slightly concerned about this as I always thought that the space was too narrow (3.1 meters) to accommodate all this. However, I am glad that I trusted Ionut’s team as the layout and design was better than expected. The extension is now the best built and most spacious rooms in the house. I would highly recommend Ionut and his team.
Mama jones industries
No reviews yet
Extension Builder in Lower Sydenham
We’re a reliable, full-service construction company built on quality workmanship, honesty, and pride in every job we deliver. From start to finish, we handle it all — with a particular specialism in loft conversions, bathroom installations, plumbing work, and complete home improvements. What sets us apart is our people. Our team of experienced, skilled, and genuinely friendly tradesmen and women bring not only technical expertise, but professionalism, charisma, and respect into every home we work in. We believe great results come from clear communication, attention to detail, and doing things properly — no shortcuts. We’re known for being on time, transparent, and fair with our quotes, so there are no surprises along the way. Every project is approached with care and precision, ensuring the final result meets — and often exceeds — our clients’ expectations. Whether it’s transforming unused space into a beautiful loft, creating a modern bathroom, or taking care of essential plumbing work, we treat every job as if it were our own home. Your vision matters, and we’re committed to delivering results to your perfection.
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2bros brick genius
No reviews yet
Extension Builder in Lower Sydenham
Hi my name is Dio. I got 5 years experience of doing brick work I can do small jobs like garnden walls to bigger jobs like extensions and houses I always work safely I don’t mind talking and explain to customers anything they want to know before and during the work .
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Sam Puscas
No reviews yet
Extension Builder in Lower Sydenham
I’m a carpenter with 20 years of experience in the industry of building Working in all kinds of projects like building sites and domestic projects,a multi trader with experience ready to compete on time the jobs and quality
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Kingston Surrey Construction Ltd
Rating: 5 out of 5
Extension Builder in Lower Sydenham
We are a construction company with over 25 years experience. We Have worked on major projects including extensions, loft conversion and refurbishments. Including smaller projects, new bathroom and kitchens.
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Latest review:
Restoration & Refurbishment- 21 Apr 2024
Got my cloakroom re-done. They r friendly, professional, attention to detail, with clearly tens of years’ experiences. Reasonable rate as well.
STUDIO20 GROUP LTD
Rating: 5 out of 5
Extension Builder in Lower Sydenham
Studio 20 Architects is a vigorous and contemporary architecture firm based in Richmond, yet operating across London and South East England and covers all London and Surrey. We offer a full range of services including; *Architectural Services *Planning Application Services *Building Regulation Drawings *Structure Engineering Services *Extension *Loft Conversion *Project Management *Flat Conversion *HMO *Change of Use *New Build House *Interior Architecture & Design Services
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Latest review:
Architecture- 6 Jun 2021
Nadir is just the most ideal artitech we want! He is polite, offer tips, smooth communication thru, very professional. We already ask him to work together on next project. Highly recommended to all.
JMC Building Solutions
Rating: 5 out of 5
Extension Builder in Lower Sydenham
My company has been running for 10 years now generally relying on word of mouth and building relation ships with clients , my previous works cover almost everything you can imagine from house extensions to swimming pools you name it happy to help in all aspects of Buiding we also have an internal team to cover all works inside ! The complete package !!
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Latest review:
Extensions- 2 Nov 2023
I asked Jamie and his team to help me erect my garden room this autumn and I could not be happier with the result. Jamie understood the brief immediately, was clear about pricing and responsive via text. He and his crew turned up on time, worked hard to offload and build the structure and were good humoured and polite to boot. They clearly take pride in their work and I wouldn't hesitate to use them again.

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.