Extension Builders in Avery Hill

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

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Some of our top rated extension builders in Avery Hill

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ordon
Rating: 4.9 out of 5
Extension Builder in Avery Hill
“In this day and age, it’s hard to find a company you can trust. ORDON LTD is very competitive, efficient, flexible and extremely tidy. We compled the works well within the estimated time frame and to budget.
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Latest review:
Restoration & Refurbishment- 25 Jun 2026
Ziggy has just done a huge piece of work for us over the past few months, decorating and refitting our kitchen, relocating a doorway, taking out a chimney breast, fitting a media wall, resizing and replacing windows and rendering our rear wall. Everything has been done to an outstanding standard. Ziggy takes great pride in his work and his reputation and is a real perfectionist. He’s communicated well all the way through and managed any anxieties we’ve had about such a big piece of work. He’s also provided advice when we’ve needed it. Ziggy’s really upfront about costs with no unexpected shocks. Ziggy was often supported by Darek. Both were always really respectful in our home. We needed someone we could trust and couldn’t be happier. We have future projects lined up and have no doubt we will use Ziggy again.
Handy Man - Radek help you
Rating: 4.7 out of 5
Extension Builder in Avery Hill
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.
ALT’s Builders
Rating: 5 out of 5
Extension Builder in Avery Hill
We are a family run business with more than a decade of experience. At ALT’s Builders Ltd we pride ourselves on an efficient and friendly service, and achieve 100% costumer satisfaction ethic. So no matter how big or small your job is we can help. ALT’s Builders Limited is a leading and reputable Construction Company serving around London Ever since we opened for business, we’ve taken a comprehensive approach to construction industry, providing our clients with a wide range of services to cover their needs. our clients are our Number one priority and we go extra mile to make sure they’re completely satisfied. we stand by the excellence of our work and provide clients with personalized attention based on their specific needs. With this service, we’re fully prepared to tackle even the most complex projects and stand by the exceptional quality of our work.
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Latest review:
Loft Conversion- 6 Jul 2026
Brief was a loft conversion + our front driveway completed in East Dulwich, South East London in Q1 2026 and we’d happily recommend Altin from ALTs builders if your in need of a good quality builder: - Competitive price - Good comms throughout - Hard working and extra hours as required to keep project on time - Highly reviewed on checkatrade.com / mybuilder.com company profiles - Overall professional job which we are super happy with When finishing up with us he then started another project down the road off the back of our recommendation and I know they are also very happy with him as a builder!
Find My Project LTD
Rating: 5 out of 5
Extension Builder in Avery Hill
We are Find My Project – your dynamic turnkey build and construction experts. Specializing in commercial and residential refurbishments, new build developments, extensions, loft conversions, interior designs, and project management, we turn your ideas into reality. Excellence is non-negotiable, and quality is our trademark. We're not just builders; we're creators committed to crafting spaces that stand the test of time. With your trust, let's build something extraordinary together!
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Latest review:
They team did an outstanding job. The new extension has added more space to our home and made living extremely comfortable. The price i was quoted was better than other companies and the workmanship made it value for money. I am happy to recommend them to my friend, families one looking to complete similar project. Thank you all for the wonderful job you've done!
Simms building and civil engineering LTD
Rating: 5 out of 5
Extension Builder in Avery Hill
The business offers a range of services from small groundwork and foundation work, to full domestic extension construction projects and civil engineering works. I am a chartered civil engineer, with the Institution of Civil Engineers (membership number 51967168), with 17 years experience in the construction industry.
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Latest review:
Extensions- 12 Mar 2018
Nick brought many skills and talent to his work. He was polite and punctual and worked hard to get the job done as quick as he could. He and his team were professional and worked well together especially working through the challenges we all faced. His work ethic is second to none and he always remained considereate to my neighbours and I.
Designs and Developments
Rating: 5 out of 5
Extension Builder in Avery Hill
At Designs and Developments we have a wide variety of services ranging from bathrooms, kitchens, flooring, decorating loft conversions and extensions.
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Latest review:
Kitchen Fitting- 31 Jul 2019
To say Nick is just a kitchen fitter isn’t doing his work justice, he’s a fantastic project manager and craftsmen as well. When we first met Nick he took 2 hours of his time running through all the options which was when we realised we were actually quite clueless! Although we hadn’t hired him at this point his advice was invaluable. We assumed this would mean Nick’s professionalism would mean he would be very expensive, this was not the case and he was actually a little cheaper than the other parties who quoted. Once Nick started it became apparent that he and his assistant Chow to great pride in their work and worked hard to get the job finished as quickly as possible to the highest standard. They left the site spotless at the end of each day. The result is a fantastic kitchen and flooring which we are extremely happy with. We are already thinking about the next renovation piece in our home and would love to use Nick again. Thanks Nick! Niall & Hannah
sall construction london ltd
Rating: 4.9 out of 5
Extension Builder in Avery Hill
I have been working in building trade from 17 years. I believe you learn everyday from your own experience and improve the quality more when you do it next time. I have gained most of knowledge from my working experience. I get lots work leads from my previous clients.
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Latest review:
Extensions- 30 Aug 2018
my experience of working with these guys was very positive. i eventually got a new kitchen fitted by them rather than an extension as the extension was above my budget. Their pricing was competitive, although not the cheapest. i made a conscious decision to offer the project to sall construction because they were experienced, and they were detail orientated with my plan as well as the fact that their timeline matched my project timing. the kitchen fitting was done, in fact, slightly ahead of the two weeks that sunny had said it would take-which was very useful. we also went on a holiday and left the whole place to them, and everything worked out for us, so clearly very trustworthy. sunny and his brother were excellent tradesmen and came back twice later on once we notified them of some small issues. its now been 1 year since the installation of the kitchen, and fingers crossed, everything looks and works great. everyone is impressed with our kitchen which is also indicative of their very good work. I will happily hire them again if i have to do some work on extension or refurbishing.
CMP CARPENTRY & JOINERY
Rating: 5 out of 5
Extension Builder in Avery Hill
All carpentry and joinery undertaken , 16 years experience in the construction industry , from flooring to roofing from loft conversions to whole house renovations , anything that involves wood we specialise in.
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Latest review:
Joinery & Cabinet Making- 6 Aug 2022
Chris did an excellent job of designing and building a high quality radiator cover around our bay window. It was a tight space with lots of wonky walls so not a straightforward job. Chirs asked lots of questions to get the design just right and made good recommendations. I was very impressed with Chris' communication throughout the job and would certainly use again. Thanks again.
Jusuf pashaj
Rating: 4 out of 5
Extension Builder in Avery Hill
Professional painters decorating
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Latest review:
Landscaping- 23 Jun 2025
Viewed my job, booked us in. Told me what materials to buy and the didn’t turn up to the job on the day. Didn’t answer my calls. DO NOT BOOK.
great construction limited
Rating: 5 out of 5
Extension Builder in Avery Hill
I am a builder who undertakes all types of jobs from kitchens, bathrooms, drive ways, garden work, roofing, extensions loft conversions, painting, flooring, plastering
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Latest review:
Extensions- 1 Aug 2024
Good work progress and ethos. All going very well.
Akili_handyman
Rating: 5 out of 5
Extension Builder in Avery Hill
Hi, I’m Akili — a friendly, reliable tradesman with over 8 years’ experience. I take pride in high-quality work at fair prices, and I guarantee all my jobs. Skilled in plastering, tiling, decorating, roofing, and full refurbishments — no job too small or big. Quality, honesty, and respect in every project. 👍
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Latest review:
Restoration & Refurbishment- 8 Jul 2026
Very happy working with Akili. Love his attention for details. Highly reccomended!!
Azure Notions Limited
Rating: 5 out of 5
Extension Builder in Avery Hill
Azure Notions Ltd based in South East London with a geographical coverage across the whole of London, South East and home counties. Azure Notions are a highly respected contractor delivering new build, refurbishment, project management and design and build solutions to public and private sector clients. Azure Notions specialises in the education, high quality residential and commercial sectors across which the company has developed an extensive and diverse portfolio.
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Latest review:
Fencing- 22 Jun 2023
Didn't end up using them however they took time to come and quote me and was very professional.
NGBROTHERSLTD
Rating: 5 out of 5
Extension Builder in Avery Hill
HI TO ALL, WE ARE A COMPANY DOING All aspects of construction work, 3D PLANNING DESIGN ,New Build ,Extensions,loft conversions ,PRC HOUSE REPAIR ... All aspects of internal high end finish ——CABINET MAKING, GENERAL CARPENTRY, LANDSCAPING NO JOB TO SMALL !!! YOUR SATISFACTION IT'S OUR PRIORITY ...... THANK YOU!!!
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Latest review:
Joinery & Cabinet Making- 20 Nov 2019
I had to put the job off until after Christmas, but Ghenadie & brother was very polite and professional in providing me with a decent quote that included the material/labour for the work that had to be done.
Spoonerbrothers London
Rating: 5 out of 5
Extension Builder in Avery Hill
Spooner Brothers London has 20 years of building experience We have a good reputation for customer service, many of our leads are recommendation, with competitive prices & a high standard of workmanship. We specialise in orangeries, conservatories, porches, Skypods, windows, doors & bi-folds ! We are Certass fenestration registered, so all work comes with a building compliant certificate and an insurance backed guarantee See our brochures on the Spooner brothers london website
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Latest review:
Windows & Doors (uPVC & Metal)- 29 Jan 2024
John did a fantastic job of replacing a large sash window in our kitchen. He was easy to work with, and was very clean and tidy with the job. On top of that the price was very fair, particularly for the calibre of work completed. Would recommend!!
Coppermill Projects
Rating: 5 out of 5
Extension Builder in Avery Hill
Coppermill Projects is a building company that offers high standards of work for competitive prices. Our main area of work is South East London and surrounding Kent areas. We have 20 years experience in the industry. The main works we undertake are extensions and property refurbishments although we take on smaller works as well.
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Latest review:
Conversions - General- 24 Apr 2019
Ben is a very kind person. I am very happy to have Coppermill Construction to do the jobs. His quotation is well defined with all the details about the job and the services he will provide from start to finish. He has done a fantastic job together with his team workers and has completed the job on time. He is reliable and professional. He always leave the property tidy and clean at the end of the day for the next day start.. I will not hesitate to offer him to do my next building project. I will highly recommend Coppermill Construction to others. A big thank you to Coppermill Construction Team. Well done guys and keep it up.
Force Design London Ltd
Rating: 5 out of 5
Extension Builder in Avery Hill
Force Design London – Expert Construction and Renovation Services With 15 years of experience in the construction industry, we have successfully completed numerous projects, including Loft Extensions and Side Extensions. Together with our highly skilled team, we not only specialize in structural extensions but also provide a wide range of renovation, decoration, flooring, kitchen and bathroom remodeling, and general construction services. We adhere to high-quality standards in all our projects and ensure that all necessary certifications are provided, guaranteeing safe and legally compliant work. Our projects seamlessly blend aesthetics and functionality, creating unique and tailor-made designs for our clients. By carefully analyzing our clients’ needs, we offer budget-friendly and timely solutions. Our commitment to using high-quality materials, meticulous attention to detail, and customer satisfaction has established us as a trusted name in the industry. We can provide a portfolio showcasing some of our completed projects. Get in touch with us
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Latest review:
Carpentry- 17 Feb 2025
Ahmet did an excellent job. Very responsive and came out first to check the job. Will definitely be calling Ahmet back for other jobs.

Top rated Extension Builders

Our Extension Builders in Avery Hill, 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 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.