Extension Builders in Greenwich

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.7 (19 reviews)

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Some of our top rated extension builders in Greenwich

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3EEE-construction limited
No reviews yet
Extension Builder in Greenwich
We cover all residential and commercial construction projects and work closely with highly skilled tradesmen in order to deliver your project that is of a high quality standard, on time and within budget. Our projects range from groundworks and foundations to painting and decorating and include kitchen or whole property extensions, loft conversions, bathroom renovation, kitchen renovation and landscaping.
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P. Obrien
Rating: 5 out of 5
Extension Builder in Greenwich
I’ve been in the building trade for 25 years as a multi trade. Taking on jobs from putting up shelves to erecting new builds
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Latest review:
Plumbing- 23 Nov 2019
Peers carried out the job to a very high standard. He took his time to ensure it was done correctly. The price was in line with my expectation. I would hire him again. Thank you!
SANDHU A1 construction LTD
No reviews yet
Extension Builder in Greenwich
All Building Work Undertaken:- * Extension * Bathroom * Plumbing * Carpentry * Kitchen * Loft Conversion * Electrics * Heating
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Highpoint roofing and building contractors
Rating: 5 out of 5
Extension Builder in Greenwich
At Highpoint roofing and building contractors we have over 40 years of experience Collectively, we take pride in our work to ensure 100% customer satisfaction With our free no obligation quotation you will be given all the advice you need to ensure total piece of mind our goal is to meet and exceed expectations of every customer all work carried out to the highest Possible standards and at very competitive prices
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Latest review:
Roofing (Flat)- 6 Jan 2026
Completed the job as promised and was very tidy in his job
Webbs builders
No reviews yet
Extension Builder in Greenwich
Webbs builders have been building and trading for over 20 years we pride ourselves on good customer service and great workmanship. Within our team we have built extensions and new builds from ground up, we specialize in al aspects of the trade. -Plastering -Brick laying -Plumbing -Landscaping -Fencing These are just a few of the trades that we specialize in at Webbs builders. No job too big or too small for Webbs builders!
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RM constraction
No reviews yet
Extension Builder in Greenwich
I am a building contractor with many years of experience. I can build your house extension, a garage, conservatory, a loft and any wall. I also work with renovations, so if you would like to finish the extension inside out or simple changing the look of your bathroom or kitchen look no further.
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Prime contractors
Rating: 5 out of 5
Extension Builder in Greenwich
Prime contractors have been in the construction industry for about 25 years which includes domestic and commercial projects. Some of the domestic projects have been double extensions, loft conversions, house refurbishments and other small internal and external works which also include flat roof and cladding. Commercial projects have been from building double extensions and demolition having worked as a supervisor and manager.
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Latest review:
Conversions - General- 17 Apr 2026
A great experience. Work was completed quickly and to a good standard with an unexpected extra (sorting out the electrics for a light in the crawl space). Most tidy builders I have ever employed. Quick responses and good communication. I'd happily use Prime Contractors again
Hill Building Services
Rating: 5 out of 5
Extension Builder in Greenwich
We are a professional building services company that will carry out general building work including installing kitchens, bathrooms and loft conversions/extensions. We also provide decorating, tiling, landscaping, plumbing and drainage services. No job is too big or too small for us to carry out. Fully Insured and references can be supplied if required.
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Latest review:
Extensions- 9 Mar 2018
Kenny has just finished building a porch at my address. From the beginning, Kenny has been excellent with regards to providing advice, arranging the job to suit us and providing a very competitive and reasonable quote. Whilst on site, Kenny arrived early, was always extremely polite and the finished job was even better than we imagined it would be. On a scale of 1-10 we would honestly give Kenny an 11 and will definitely use his company again. Would definitely recommend him to others.
Majesticbuild
Rating: 3 out of 5
Extension Builder in Greenwich
At Majestic Build Construction Company, we don’t just build structures; we craft environments that blend seamlessly with nature. With a passion for creating breathtaking outdoor spaces, our landscaping services are designed to enhance the natural beauty of any property, be it residential, commercial, or public. We specialize in: • Custom Landscape Design: Tailored to suit your vision and the unique features of your land. • Hardscaping Solutions: Including patios, walkways, retaining walls, and water features that add depth and functionality to your outdoors. • Sustainable Landscaping: Focusing on eco-friendly practices and native plant selections for a greener future. • Comprehensive Maintenance: Ensuring your landscapes remain as vibrant and immaculate as the day they were created. With a dedicated team of professionals and a reputation for excellence, Majestic Build Construction Company transforms ordinary spaces into extraordinary outdoor experiences. Let us bring your landscaping dreams to life!
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Latest review:
Bricklaying- 17 Dec 2024
They initially gave a fair price and a date and timeline that fitted with our needs. Subsequently they over ordered on the bricks so we had over 100+ expensive London bricks left over and they under ordered on sand and cement.(Luckily the shop took them back but we had to deliver them there) The job took far longer than they had said although the poor weather did not help much which could not be helped. The worst was that the wall was finished so that the latch of the gate could not be fitted as the wall was a bit too long! The wall looks good but their customer service and time given for job as well as ordering materials needs some improvements. They are pleasant workers, not rude in speaking
Thaqi Build Ltd
No reviews yet
Extension Builder in Greenwich
We specialise in upscale loft conversions and home renovations of various sizes throughout East, North, West London & Essex. With extensive experience in loft and basement conversions, kitchen extensions, and full-house renovations. We deliver your new home upgrade in an affordable price with the minimum of fuss and maximum satisfaction.
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FDT Construction Services Limited
No reviews yet
Extension Builder in Greenwich
Construction company specialising in home extensions, loft conversions, patios, driveways and other construction services. You name it, we are here to help!
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TCB Carpentry
No reviews yet
Extension Builder in Greenwich
I'm a carpenter and general builder with over 20 years experience. I take on any aspects of carpentry and general building from small jobs to big jobs. I specialize in kitchens from fitting the full kitchen to changing a worktop. I also do any general building works. I pride myself on a clean professional job.
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handyman
No reviews yet
Extension Builder in Greenwich
my experience work is 15 years at construction skills.
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Urastar Construction Ltd
No reviews yet
Extension Builder in Greenwich
Interior and Exterior Works, Extension and Loft Conversions, Renovations, Refurbishment, Civil Engineering Consultancy
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Razvan Consttruction Ltd
Rating: 5 out of 5
Extension Builder in Greenwich
Razvan Consttruction Ltd is a company with a solid team of builders with experience of 20 years!
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Latest review:
We had a lot of work done including a brand new roof, whole rear and side extensions. New driveway. Landscaping. Complete fit out works inside. I wouldn’t hesitate to recommend Razvan- he is a complete professional and a really nice guy. Honest and hardworking and takes pride in his work. Out of all of the builders I have used Razvan is the only one I would use again.
pdb building service limited
No reviews yet
Extension Builder in Greenwich
hi I am builder. I do all the building work. I had a 22year experience. We are a building company covering all aspects of construction and landscaping with qualified and experienced builders. We pride ourselves on offering professional services that are convenient to customers and price competitive .
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3.7

Top rated Extension Builders

Our Extension Builders in Greenwich, are rated 3.7 out of 5 based on 19 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Greenwich?

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

Find extension builders in Greenwich with MyBuilder

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

Step 2: Compare different extension builders in Greenwich

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

Step 3: Hire Greenwich extension builders with confidence

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

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

What to ask a Greenwich extension builder before hiring?

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

An extension builder in Greenwich 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 Greenwich 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 Greenwich?

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 Greenwich 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 Greenwich 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 Greenwich

Can an extension builder in Greenwich help with planning permission?

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

Many Greenwich 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 Greenwich help with materials and finishes?

Yes, most extension builders in Greenwich 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.