Extension Builders in Whetstone

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (16 reviews)

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Some of our top rated extension builders in Whetstone

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Choice
Rating: 5 out of 5
Extension Builder in Whetstone
CHOICE is a construction company specialising in house refurbishments across London. We cover all aspects of the construction service from demolition services, plastering,carpentry, plumbing and electrics, flooring to decorating. With many years of experience in construction industry, we provide attention to detail in every aspect of our work. Our pledge is to establish an interactive relationship with our customers and providing a superior level of service.
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Latest review:
Conversions - General- 26 Apr 2026
precise, and did the job, rapidly with a team of workers - left a bit of a mess but fine overall for their services
BSD Design & Build LTD
No reviews yet
Extension Builder in Whetstone
🏗️ Build with Confidence – Build with Us! 🏡 B.S.D Design & Build is a proud member of FMB. Not every builder is a Master Builder! In an unlicensed industry, choosing a Federation of Master Builders member gives you peace of mind, knowing we meet strict entry criteria and undergo continuous monitoring. ✅ Expert Craftsmanship ✅ On-Time & On-Budget ✅ Built to Last Trust the professionals. Contact B.S.D Design & Build today! 📞🔨
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Brits construction ltd
Rating: 5 out of 5
Extension Builder in Whetstone
Brits has vast knowledge & experience of residential projects and has built several Modern Loft conversions, Major Side & Rear Extensions and whole house Internal Refurbishments. We Offer; Project Management. Program of works. Regular Meetings with the client. Liaise with the local authorities. We execute Projects on time, within budget and with the highest quality. Best housekeeping and H&S Standards. Employees & Public Liability Insurances. Member of FMB, LABC, Trust Mark, NABC
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Latest review:
Extensions- 21 Jul 2023
We had a loft conversion and a 9x3m rear extension constructed. We also had underfloor heating, flooring, a new staircase and air con installed. We are happy with the result and would recommend this company. They have also respected warranty and fixed issues that have come up after construction and decorating work completed.
BuildPro
No reviews yet
Extension Builder in Whetstone
🔨 Expert Loft Conversions, Wall Insulation & Kitchen Fitting 🔨 🏡 Transforming Spaces, Enhancing Homes 🏡 ✅ Loft Conversions – Maximize Your Space ✅ Wall Insulation – Stay Warm, Save Energy ✅ Kitchen Fitting – Stylish & Functional Designs
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JKBC
Rating: 5 out of 5
Extension Builder in Whetstone
By having 20 years of experience in the business, no job is too challenging. My team specialises in both small scale repairs and decorating, as well as major projects such as refurbishments, extensions, and home renovations.
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Latest review:
Jerzy carried out several jobs for us. He has completely refitted our bathroom, he's rebuild a wall, laid front of house path, restored old front door, installed solid wall internal insulation, rebuild window frames, plastered a room and few other bits and pieces. He is extremely reliable and trustworthy. He's always been on time, works really hard and has always been honest about things and up front with any issues. Always consulted us for possible solutions. His work is to the highest standard and if I want a job done well, I always go to Jerzy.
Propertkare
Rating: 5 out of 5
Extension Builder in Whetstone
Propertkare is service run building and refurbishment group. We undertake all forms of building work and maintenances, kitchen and refurbishment, painting and tiling. We have been trading for past 10yrs with great success.
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Latest review:
Carpentry- 14 Oct 2025
Mr Williamson did a fantastic job installing and repairing fire doors in my HMO property to the exact standard required by the council. He was very professional, punctual, and highly attentive to detail throughout the entire project. The quality of his work was exceptional, and he ensured the job was completed within the agreed deadline. I’m very pleased with his service and would gladly recommend him to anyone looking for a reliable and skilled carpenter.
Palmers air condition ltd
No reviews yet
Extension Builder in Whetstone
Construction
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Pops Building Services Ltd
Rating: 5 out of 5
Extension Builder in Whetstone
I am a city and guilds advanced craft qualified carpenter/joiner With over 30 years experience in the construction industry. I was the director of a property development company. I’ve managed contracts for NHS trusts as well as private contractors. The types of work I normally undertake are loft conversions, extensions, renovations, kitchen and bathroom installations
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Latest review:
Peter was the on-site foreman on our complete house renovation, which took just over a year. This included an additional ensuite pod bedroom in the roof and a side-return and extension to the kitchen. Peter was totally reliable throughout the project and thoroughly professional. Throughout this time we were living in the house with the children. He was always on time, managed the on-site team well and communicated clearly with us. His workmanship is high quality and he was also a stickler for checking the work of others and getting it updated if it wasn’t up to scratch. I have no hesitation in recommending Peter.
SC General Builders Ltd
Rating: 5 out of 5
Extension Builder in Whetstone
Welcome. I am a builder with 25 years of experience. Have completed a large number of projects from small jobs to major projects such as extensions, loft conversions and full refurbishments, residential and commercial. Excellent quality for reasonable price guaranteed. Professional, reliable, affordable. Hassle free service. We cover all aspects. Fully insured. Thank you. Seb
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Latest review:
Conversions - General- 16 Jun 2024
Excellent communication Good price Did exactly what he said he would do and gave advice on other work that we were doing ourselves Really nice guy Very pleased with his work Would use him again
Building&Maintaining
No reviews yet
Extension Builder in Whetstone
All types of groundworks, plus repairing,painting and decorating properties.
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Builder Cat LTD
Rating: 5 out of 5
Extension Builder in Whetstone
Serdar has over 20 years of experience as a professional builder. His extensive experience includes Owner/Builder/Developer of his own company, many years Builder Cat Limited was founded by Serdar Aydinlar, who has since 1996 structural engineering and design experience. Serdar oversees the structure of each project, and monitors the careful execution of the design brief to ensure a flawless finish.
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Latest review:
Bathroom Fitting- 12 Jun 2019
Did a very good and efficient job with minimum fuss. I have asked the builder to quote for another job and do not have any hesitation in recommending this builder.
Bricklayer
New on MyBuilder
Extension Builder in Whetstone
Over 7 years experience, quality guaranteed
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AP solutions
New on MyBuilder
Extension Builder in Whetstone
AP Solutions is a reliable and professional property services company providing high-quality building, roofing, maintenance, cleaning, and repair solutions for residential and commercial customers. From roofing and general building work to exterior cleaning, landscaping, property maintenance, and renovations, we take pride in delivering exceptional workmanship, honest pricing, and dependable service. No job is too big or too small—our experienced team is committed to completing every project safely, efficiently, and to the highest standards, with customer satisfaction at the heart of everything we do.
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Sureform Construction Ltd
No reviews yet
Extension Builder in Whetstone
Hi, My name is Tom Mc Hugh, I have been in the construction industry for over 30 years. I originally started in the field of Architecture but later moved into the construction side of things forming Sureform Construction Ltd (SCL) in 2009. We have great experience in ground works and Temporary works and we have completed several new basements and total renovations within London including some high end projects in, Kensington, Chelsea, Notting hill areas. We are experts with anything relating to concrete, underpinning, Superstructures, foundations, RC slabs etc. We also carry out general groundworks, drainage, remedials and full hard landscaping including tarmac, paving etc. We work on commercial & domestic projects. We generally work within the London area but we have carried out Projects further afield such as Oxford, Cambridge, Bishop Stortford, Stevenage. At Sureform Construction we pride ourselves on professionalism and commitment to Safety and quality Workmanship and attention to detail. We have several Customers and Main contractors that we have worked with on a continual basis over the years. We look forward to hearing from you and seeing how we can help with your project.
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Groundwork and Landscaping Services Ltd
Rating: 5 out of 5
Extension Builder in Whetstone
Local professional builders with a vast experience installing fencing, paving and general groundwork, we offer competitive prices and good quality finish. We specialise in all aspects of gardening, landscaping and groundwork, we strive to make each garden unique and listen to our clients' individual wishes and requirements. We strive to create a space you can really enjoy.
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Latest review:
Landscaping- 25 Mar 2022
Fatmir was very professional and delivered a high standard of work at a fair price. Reliable, on time and listened to what I wanted. He communicated throughout the job. I am delighted with my fencing and patio he provided. Very trust worthy professional who values is customer and work. Highly recommend and have passed his contact to my neighbour and friend. Thanks Fatmir
Andi
No reviews yet
Extension Builder in Whetstone
we are able to undertake any work that has to do with the interior and exterior of your home. Responsibly! A.B
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3.9

Top rated Extension Builders

Our Extension Builders in Whetstone, are rated 3.9 out of 5 based on 16 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Whetstone?

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

Find extension builders in Whetstone with MyBuilder

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

Step 2: Compare different extension builders in Whetstone

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

Step 3: Hire Whetstone extension builders with confidence

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

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

What to ask a Whetstone extension builder before hiring?

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

An extension builder in Whetstone 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 Whetstone 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 Whetstone?

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 Whetstone 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 Whetstone 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 Whetstone

Can an extension builder in Whetstone help with planning permission?

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

Many Whetstone 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 Whetstone help with materials and finishes?

Yes, most extension builders in Whetstone 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.