Extension builders in Avery Hill

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (18 reviews)

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Some of our top rated extension builders in Avery Hill

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Nami Construction Ltd
Rating: 5 out of 5
Extension Builder in Avery Hill
We offer comprehensive property refurbishment services that include decorating, plumbing, electrical work, plastering, extensions, and loft conversions. Our team comprises professionals, and we ensure that all instructions are regularly reviewed with our clients throughout the duration of the project. We provide transparent and detailed estimates and updates on a regular basis to help you control your budget. Our services cater to all types of homes, such as those owned by landlords, Thank you
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Latest review:
Plumbing- 19 May 2026
Emir did a good job. The company did a bathroom refurbishment after water leak, repaired the damaged ceiling downstairs and painted the room. Emir’s attention to detail is very good and he went the extra mile to do the job properly. I will recommend his services.
Phoenix Logis Limited
Rating: 1 out of 5
Extension Builder in Avery Hill
We have many years experience in the UK market in refurbishment and domestic and non domestic property alterations. This includes heavy structural alterations and house extensions and reconfigurations for very high end clients delivering in the range of Prime and Super Prime Projects for very high end clients. This getting the projects from cradle to grave making sure we meet our targets on time and budget making sure the clients are happy with the results we deliver. Our works starts with the assistance of making all the necessary paperwork for the client, ground works, internal refurb, heavy and light structural alterations, in a few words all trades in our hand for internal and full external works this including scaffolding.
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Latest review:
Restoration & Refurbishment- 1 Feb 2026
The WORST experience I have ever had with a tradesman. I would strongly advise others to stay clear. There was no schedule of works at any stage. Adrian failed to plan, failed to communicate agreed works, & did not even tell his own workforce what they were meant to be doing. There was no evidence of professional oversight or management, resulting in chaos & extreme delays. I was repeatedly misled. He stated that Building Control had been contacted & paid for; but when I contacted them directly they confirmed no application or payment had been made. He damaged my property & instructions were ignored. He was rude, aggressive & shouted at me in my own home, which I found intimidating as a woman. Neighbours also complained about his behaviour. Despite multiple extensions, the job was left unfinished with little communication. He caused significant stress & a serious loss of time & money. The matter is now being resolved through the courts. I would NOT recommend him under any circumstances
E3A Construction Ltd
No reviews yet
Extension Builder in Avery Hill
E3A Construction company specializing in housing, extensions, summer houses, roofing, loft conversion, walls, driveways, gardens, we provide a high quality service. site team are experienced and qualified, our sites will have Project manager SMSTS/First aider for safe work and quality.
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Albatross Construction
Rating: 5 out of 5
Extension Builder in Avery Hill
We are a small builder and groundwork company based in South Croydon, with over 30 years building extensions and groundwork experience. Having completed many extensions localy and various groundwork projects. We have all our own plant and machinery which keeps us price competitive and never ask for money up front (unlike some other builders) Our service comes with fully compressive building all risk insurance and all work undertaken is guaranteed References are available on request
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Latest review:
Groundwork & Foundations- 26 Feb 2025
I hired John to build a concrete base for a garden building installation and he did a great job, resulting in follow-on work for him laying a new Indian sandstone patio in front of the building, which he also did to a high standard. After receiving several quotes from different firms, I selected John because he asked the right questions, clearly thought about the solution and was interested in ensuring the result was the right one right for me. He's a lovely bloke and a pleasure to have working here. He works on his own and for the most part keeps himself to himself, wasn't fussed about tweaking the scope here or there as the plan developed and kept the place pretty tidy throughout. I will be using him again for sure, so I wholeheartedly recommend John for any work you're considering hiring him for.
Rcm Buildrs
Rating: 5 out of 5
Extension Builder in Avery Hill
RCM Builders is an insured construction company which offers a multitude of services. Loft conversions, extensions, painting, plastering, fencing, building renovations, and bricklaying are a few specialities we covers. We have over 28 years worth of experience and are well versed in providing high quality work, great customer service, great costumer satisfaction and great communication.
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Latest review:
Conversions - General- 7 Mar 2023
Have completed the job extremely well. Did a new door opening. Door fittings and plaster work . Very good finish. On time. Polite. Very pleased. Would hire again.
Golden Fingers Building Service LTD
No reviews yet
Extension Builder in Avery Hill
Hello, my name is Xian Qi Chen and I am the owner of Golden Fingers Building Service. We are a new company located in South East London and cover a majority of the different categories of work in the building industry. We are dedicated and can do any type of work without losing quality or focus, at a low but still reasonable price. Our portfolio can be found on our website.
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KINVEK CONSTRUCTION
Rating: 5 out of 5
Extension Builder in Avery Hill
We are a family run business, established January 2005, Kevin is a carpenter with over 40 years in the building industry, my son Matthew, who is a plumber, has been working with me for the last 10 years and wife Julie has been in the office since the start We pride ourselves on being friendly polite and trustworthy We do all types of building work, extensions, kitchens, bathrooms, carpentry, plumbing, electrics and decorating, fencing, decking
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Latest review:
Carpentry- 19 Aug 2026
Kevin was very competent supplied all the materials needed and did a thorough good job .I was very pleased and will be hiring him again when he is available
Ashley's Building Limited
Rating: 5 out of 5
Extension Builder in Avery Hill
We are a family-run company with 25+ years of experience in the building industry. Our focus is on providing quality, reliable, and affordable building services to homeowners. We specialize in Extensions, Loft Conversions, Structural Alterations, and Full Refurbishments. Fully insured and all our work is guaranteed .
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Latest review:
Extensions- 29 Nov 2022
Would highly recomend Tony and his team, clearly know what they are doing and have done and seen it all before! We had a rear and side extension, Tony kept us well informed throughout the job what the next stages will be etc, was always on hand during all stages every day, even weekends when needed, nothing slowed the job down and we were done in great time! Nothing was not possible, even down to me being fussy with a wall, its beyond my expectations! Thank you and your team Tony 😊
PLANNING APP LTD
Rating: 5 out of 5
Extension Builder in Avery Hill
We create architectural drawings. We are specialised in applications for planning permission and building regulations and co-operate with local structural engineers for structural calculations, party wall surveyors and building companies. Our projects include extensions, lofts, garages, house&flat conversions in different councils all around London. If you are thinking of extending, converting, or splitting your property do not hesitate to contact us for a free first consultation & quotation.
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Latest review:
CAD / Drawings- 23 Sep 2020
Marius has been doing a great job and put in an extra effort to ensure we were happy with the outcome. I can not recommend Marius highly enough, especially as he managed to fix an issue with the council that we had from someone else drawings. He was patient and very well prepared. Went an extra mile and gave us different ideas/options. He was flexible with timings and most importantly with price. Had by far the best quote and did an exceptional job.
Sergiu B
Rating: 5 out of 5
Extension Builder in Avery Hill
first and second fix of carpentry, furniture, plumbing, ...
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Latest review:
Job well done. I am very happy with the outcome. He gave good advice, knows his business, does good work and also helped out with other little things in the house. 100% positive I would recommend him to friends and neighbours
Kai stembalski
No reviews yet
Extension Builder in Avery Hill
Im a 20 year old multi trader who is looking for potential clients.
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Wisteria Construction LTD
Rating: 5 out of 5
Extension Builder in Avery Hill
Wisteria Construction Ltd is a trusted name in the construction industry, known for delivering exceptional craftsmanship and unmatched attention to detail. We take immense pride in every project we undertake, ensuring that every task—whether big or small—meets the highest standards of quality and professionalism. From new builds to roof repairs, damp treatments, and electrical work, our diverse expertise allows us to handle a wide range of construction needs. We work closely with our clients to fully understand their vision and requirements, ensuring that every project is completed on time, within budget, and to the utmost satisfaction. At Wisteria Construction Ltd, we believe in building long-lasting relationships and providing results that stand the test of time. Our skilled team is committed to maintaining the highest level of safety, efficiency, and customer service throughout the entire process. No matter the challenge, we approach every job with dedication, integrity, and a commitment to excellence.
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Latest review:
Excellent service very polite even better work an absolute pleasure dealing with them fully recommend them top service
Deep builders
Rating: 5 out of 5
Extension Builder in Avery Hill
Hi, my name is Deep, and I’m the founder of Deep Builders. With over 10 years of experience in the construction industry, I specialize in all types of building work, including: • Home Extensions • Loft Conversions • Full Renovations • General Building and Maintenance At Deep Builders, we pride ourselves on delivering high-quality workmanship, clear communication, and reliable service from start to finish—no shortcuts, no surprises. I’m a professional builder with extensive experience in all types of building work, including home extensions, loft conversions, full renovations, and general construction. I’m dedicated to delivering high-quality craftsmanship, reliable service, and results that truly transform homes. We proudly serve clients across London, Manchester, Luton, and surrounding areas, helping homeowners bring their vision to life—whether it’s expanding space, updating interiors, or transforming a property from the ground up.
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Latest review:
Hard Flooring- 16 Sep 2026
Excellent work and great value for money. He was professional, friendly and very careful with all the details. The flooring looks fantastic and everything was left clean and tidy afterwards. Really happy with the result and would definitely recommend him!
KLEON Construction Ltd
Rating: 4.9 out of 5
Extension Builder in Avery Hill
We undertake all construction work
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Latest review:
Landscaping- 21 Apr 2024
Great job guys. Would highly recommend them. Job was done nicely, efficiently and good value for money. I cannot be happier to have found them. Will defo use them when extending the patio in my garden. Thank you
BKFS LTD
Rating: 5 out of 5
Extension Builder in Avery Hill
Work undertaking includes; Joinery, Kitchen and bathroom installation. Electrical NIC EIC approved contractor Gas safe Plastering, Painting, Tiling, Specialised in Bespoke wardrobes. Granite, Marble and Quartz Worktops. Wet room
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Latest review:
Tiling- 3 Jan 2025
Job completed in a very friendly and professional manner. Highly recommended. Once again, thank you Raghed!
Leo81
Rating: 5 out of 5
Extension Builder in Avery Hill
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.

4.3

Top rated Extension Builders

Our Extension Builders in Avery Hill, are rated 4.3 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 Avery Hill?

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 Avery Hill 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 Avery Hill who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Avery Hill?

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

Find extension builders in Avery Hill with MyBuilder

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

Step 2: Compare different extension builders in Avery Hill

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

Step 3: Hire Avery Hill extension builders with confidence

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

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

What to ask a Avery Hill extension builder before hiring?

Before hiring an extension builder in Avery Hill or extension building company in Avery Hill, 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 Avery Hill?

An extension builder in Avery Hill 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 Avery Hill 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 Avery Hill?

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 Avery Hill 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 Avery Hill 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 Avery Hill

Can an extension builder in Avery Hill help with planning permission?

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

Many Avery Hill 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 Avery Hill help with materials and finishes?

Yes, most extension builders in Avery Hill 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.