Extension Builders in Whetstone

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

Easily find verified Whetstone Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Whetstone.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Whetstone

3155 Results

Sort by:

Tomyc Constructions Limited
Rating: 5 out of 5
Extension Builder in Whetstone
Tomyc Constructions Limited is a London-based renovation and building company. We specialise in full property refurbishments, bathrooms, kitchens, painting, flooring, and general construction. Our services also include microcement finishes, decorative paints, and feature wall creations. Fully insured, reliable, and committed to delivering high-quality results on time and to a professional standard. All our work comes with a one-year guarantee.
Get in touch
Latest review:
Really happy with our new bathroom. The team from Tomyc Constructions were professional, tidy, and finished everything to a high standard. Work was done on time and exactly as promised. Highly recommend.
Landi Builders Ltd Uk
Rating: 5 out of 5
Extension Builder in Whetstone
I am a professional, reliable, and hardworking builder dedicated to delivering high-quality workmanship and excellent customer service on every project I undertake. I take great pride in my work and always aim to complete every job to a high standard, ensuring that my customers are fully satisfied with the finished result. I understand that choosing a builder is an important decision, and I always strive to provide a service that is trustworthy, professional, and stress-free from start to finish. My approach to building work is simple: be reliable, communicate clearly, work safely, and deliver quality results. I believe that professionalism is just as important as workmanship. Turning up on time, being respectful of a customer’s property, keeping the work area tidy, and maintaining clear communication throughout a project are all essential parts of the service I provide. I treat every job, large or small, with the same level of care, attention, and commitment. I have experience in a wide range of building and property improvement work, including general building, repairs, maintenance, renovations, interior improvements, exterior work, and property upgrades.I am happy to take on both small jobs and larger projects.
Get in touch
Latest review:
Kitchen Fitting- 8 May 2026
Keri did an excellent job in fixing our cooker extractor pipe. Easy to talk to, nice approach and work in a timely manner. If we need them again for our home, will definitely contact them again.
Vlad Chiroban
Rating: 5 out of 5
Extension Builder in Whetstone
Hi ! If anyone interested about my services don’t hesitate to contact me I have over 12 years experience in drylining , tape and jointing , plaster and painting Also I can do general buildings Many thanks
Get in touch
Latest review:
Painting & Decorating- 28 Apr 2021
Vlad and his team was very polite and professional. The guys repainted my living-room, hallway and kitchen along with repairs I needed doing around my Flat. This included re-plastering and general making good inside/outside the property. Vlad even went out of his way to help me find the right paint for my walls and provided honest advice. The team made sure the work was done to a high standard, ensuring the flat was clean before they left. I needed the work to be done quickly and this was done in good time and at a good price. Easy going, I would definitely hire them in future.
Beam Developers ltd
Rating: 5 out of 5
Extension Builder in Whetstone
Unlocking a world of possibilities, BEAM Developer Ltd specializes in an array of dynamic property services. From sleek architectural designs for planning applications to robust structural packages, we've got your project covered. Our expertise extends to seamless renovations, repairs, and captivating new extension and conversion builds. Elevate your vision with BEAM Developer Ltd – where excellence meets innovation!
Get in touch
Latest review:
Ahmad and the Beam Developers team did an amazing job on my rear extension. We were very particular with our requests and are generally picky people but they were very patient and accommodating to our every request. We were shown the drawings, made adjustments and managed to tailor the project exactly to what we wanted. The finished results were amazing. No big project for us soon but should we plan to do the loft will definitely use Ahmad and his team again.
Anjelina
Rating: 5 out of 5
Extension Builder in Whetstone
Hello, my name is Krasimir Dimitrov i am a tradesman, i deal with loft conversions, demolitions, new builds, extensions. I have been in the trade for over 10 years.
Get in touch
Latest review:
Demolition- 17 May 2025
The team was great They did everything as they promised The job was finished on time Thanks for the help, it was much appreciated.
SSS Brothers Limited
Rating: 5 out of 5
Extension Builder in Whetstone
At SSS Brothers we value our customers and work very hard to maintain their trust.With 15 years of experience,You can be assured that we will always provide quality workmanship, professional,courteous and timely service. Our prices are competitive, and our work is guaranteed. We will not be satisfied until you are! What We love most about renovating homes is working with our clients to create something spectacular.Every job comes with new challenges and opportunities to build something special.
Get in touch
Latest review:
Extensions- 26 Aug 2021
SSS BROTHER, They worked incredibly hard to transform our house in a timely and efficient manner, all whilst being responsive to our concerns and preferences. The SSS BROTHER did a great job extending our kitchen and backroom to create a beautiful space that we love hosting family and friends in. The job was completed to a high standard and with good communication. Throughout the work, the workers were calm and knowledgeable and - importantly for us - helpful and offered their opinion of how the extension should be built.
A&A Construction
Rating: 5 out of 5
Extension Builder in Whetstone
A&A CONSTRUCTION has served north west London for over 10 years,we offer a complete home improvement package from design to completion.
Get in touch
Latest review:
Painting & Decorating- 18 Dec 2025
Full paint of 2 bedroom flat completed to a high standard. Would recommend.
Smart environment
Rating: 5 out of 5
Extension Builder in Whetstone
We do carpentry and roofing works. We present our work professionally. We strive to please the customer. We have experience over the years. Our prices compete with everyone. Our headquarters is in London
Get in touch
Latest review:
Carpentry- 26 Aug 2022
I'm very happy l hired this person for the job.He did an excellent job from start to finish.Very neat work and even cleaned up afterwards.l will definitely hire him again if needed.Will sure recommend him to others.He's well spoken and very polite.Price wise is very reasonable.
Shpetim troka
Rating: 5 out of 5
Extension Builder in Whetstone
Troka Construction specializes in home refurbishments, extensions, and a wide range of home improvements. With a focus on quality craftsmanship and personalized service, we bring our clients' visions to life with dedication and attention to detail.
Get in touch
Latest review:
Carpentry- 30 Apr 2026
Great communication and was able to come and do the job quickly after first message. Job was completed to a great standard (skirting boards and some scotia)
CIF Builders
Rating: 5 out of 5
Extension Builder in Whetstone
We are family run business and have been in the trade since 2001. Our professional team will always give the best they can to achieve optimal results and most important for us are the finishing details and customer satisfaction. We can provide a range of different services from conversions, to extensions, bathroom and kitchen fittings and full restoration.
Get in touch
Latest review:
Extensions- 28 Mar 2021
Amazing work from CIF Builders: John and his team delivered an amazingly looking extension and were a pleasure to work with. I have no doubt I will employ them again!
GMC LONDON RENOVATIONS LTD
Rating: 5 out of 5
Extension Builder in Whetstone
GMC LONDON RENOVATIONS its specialist in New Builds , Home Extensions , Loft Conversion , Home Renovations and Refurbishment we are committed to providing the best quality workmanship and service. We have experience over 10 yrs in Construction industry Residential and Commercial, we completed successfully many projects during the years where quality was our No1 priority . We holding Public Liability Insurance for customer Peace of Mind and Safety certificates for Gas and Electrical work installation. GMC LONDON RENOVATIONS will deliver from start to finish your project without hassle or delays . We are professionals and enthusiastic young team members.
Get in touch
Latest review:
Bathroom Fitting- 24 Oct 2025
We had 2 bathrooms refurbished at the same time by Romulus and his team over a 4 week period. Both bathrooms were completed on time and on budget. We were looking for 2 functional bathrooms, but ended up with 2 very high spec bathrooms within our original budget, and couldn't be happier with the high level of service and professionalism by all his team. We will now move forward and have his team refurbish our kitchen.
Vadet Construction
Rating: 5 out of 5
Extension Builder in Whetstone
We are Anyfix Limited, with over 20 years of experience in the construction industry. We provide high-quality services covering everything from strip-out to brickwork, electrical, plumbing, carpentry, tiling, plastering, flooring, and painting, leaving a tidy, clean site.
Get in touch
Latest review:
Bathroom Fitting- 7 Jun 2026
We recently had our bathrooms refurbished by Vasile and his team, and we are absolutely delighted with the results. From the very beginning, they were professional, reliable, kind, and exceptionally helpful. Vasile was always available to discuss every aspect of the project, taking the time to explain things clearly and answer our questions with patience and honesty. It felt as though we had a genuine partner supporting us through the renovation of our three-bedroom flat. Vasile and his team were fully invested in achieving the best possible outcome and were always willing to go the extra mile when challenges arose. The quality of their work is outstanding. They worked efficiently, kept us informed throughout, and ensured everything was completed in a timely manner without compromising on quality. We would wholeheartedly recommend Vasile and his team to anyone looking for skilled, trustworthy, and genuinely caring professionals.
BUILDING BLUEPRINTS
Rating: 5 out of 5
Extension Builder in Whetstone
A highly experienced and qualified contractors from a Carpentry & Joinery background. Taking on diverse scoped projects ranging from Domestic to Commercial.In the residential sector from renovations and refurbishments at the same time carrying many trades in house. We are ready for your project
Get in touch
Latest review:
Carpentry- 19 Sep 2015
Not only was Ian's quote to do the loft conversion very reasonable, he was very reliable, tidy & very helpful when we had a difficult situation. The work was done in a quick time, when he said he was going to be on site he was, at no time did he let me down. The standard of work was excellent, I would recommend Ian & wouldn't hesitate to use him in the future.
1RightConstruct
Rating: 5 out of 5
Extension Builder in Whetstone
Extensions and Loft conversions , General building works, Kitchens and Bathrooms but can also carry out all Electrical jobs. We take great pride in our work and we enjoy to admire the transformation of projects from the beginning to end.
Get in touch
Latest review:
Extensions- 28 Jul 2023
We recently had the pleasure of working with Marius, his skills and craftsmanship were truly outstanding! Throughout the construction process, his attention to detail was commendable. Every aspect of the project, no matter how small, was meticulously executed. Marius' expertise was evident in the precision of his work, and it was clear that he takes great pride in delivering the best possible results. Marius kept us informed at every stage, patiently explaining the progress and addressing any questions or concerns I had. This level of transparency and professionalism made the entire experience enjoyable and stress-free. Marius' dedication to quality was evident in the choice of materials he used, ensuring the durability and longevity of the finished product. He had an eye for aesthetics, ensuring that the final result not only met functional requirements but also looked stunning. Not only was Marius skilled and reliable, but he also completed the project within the agreed timeframe and budget. His efficiency and commitment to deadlines were highly commendable. In summary, I can confidently say that Marius' work is truly great. His exceptional skills, attention to detail, clear communication, and commitment to excellence made the entire construction process a delightful experience. I highly recommend Marius to anyone in need of a reliable and talented builder.
Excel Builder
Rating: 4 out of 5
Extension Builder in Whetstone
Experienced, qualified builders 25 years experience in all types of trade, from plumbing and electrical works, extensions, loft conversions, kitchens, bathrooms, all bespoke works, including gardens.
Get in touch
Latest review:
Extensions- 6 Aug 2024
Started very good and came cross professional. But did not finish the job despite receiving half of the money in advance demanding cash payment, he left the job incomplete because demanding money in advance and threaten to leave if we don’t pay them in advance despite the job is not done according to their own given schedule. I also found out they are doing few projects at the same time that’s why couldn’t complete on time.
WMC GROUP LTD
Rating: 5 out of 5
Extension Builder in Whetstone
Welcome to Westminster Construction, your ultimate destination for all things related to house renovations and extensions. We specialize in a wide range of services including kitchen and bathroom transformations, flooring upgrades, painting revivals, roofing solutions, and even seamless house extensions. With our skilled team, wealth of experience, and unwavering commitment to quality, we're your go-to partner in creating the perfect living space for you and your family.
Get in touch
Latest review:
Roofing (Flat)- 29 Mar 2024
Geldi and his team did a very good job on the garage roof. Good communication and kept us updated about any issues. The work was finished on time and as per the quote. We can strongly recommend them.

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.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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.