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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Cekamaintenance ltd
Rating: 5 out of 5
Extension Builder in Whetstone
With over 20 years in carpentry, plumbing, kitchen and bathroom fittings, and general building maintenance work.
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Latest review:
Carpentry- 2 Aug 2025
Excellent service from start to finish, tradesman as they should be!
SMAA Construction Ltd
Rating: 5 out of 5
Extension Builder in Whetstone
Hi, my name is Adrian a master in building by now with over 15 years of working experience in the building industry passed down from generation to generation.Me and my team guarantee quality and dedication towards the projects we receive and treat them as our very own. We specialise in all means building with a specialist in each domain.
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Latest review:
Restoration & Refurbishment- 2 Jun 2025
Adrian and his team were reliable, punctual and detailed with their work. Finish was great. Touched up the paint in surrounding walls due to dust and marks from the ceiling. slightly pricier than other quotes we received but we felt at ease with Adrian so went ahead.
DS JOINERY WORKSHOP
Rating: 5 out of 5
Extension Builder in Whetstone
Fast/Bold/Decisive/Smart/London based building company dealing with renovations, extensions, loft conversion, new builds and commercial building projects - including indoor projects such as : •kitchen fitting •tiling •bespoke joinery •flooring •landscaping •doors&windows •painting&decoration Looking foward to finish projects with highest quality possible for you !!
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Latest review:
Good value, professional, trustworthy and very hard working! And to top it all off, Dori has made genuinely beautiful cupboards - I could not recommend him enough & will 100% be using him again in the future!
A lama construction ltd
Rating: 5 out of 5
Extension Builder in Whetstone
Drylining and plastering , making good , building wall , mf ceiling , plasterboards , rendering, painting.
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Latest review:
Carpentry- 9 Oct 2022
Excellent work; came exactly on time and went above and beyond. Job a little more involved than I’d realised but no complaints from Alfred he purely got on with the task at hand and I was incredibly happy with the work and would highly recommend.
National construction and maintenance ltd
No reviews yet
Extension Builder in Whetstone
National Construction and Maintenance Ltd is a trusted and experienced construction company with over 25 years of industry expertise delivering high-quality building, renovation, and maintenance services across residential and commercial projects. We pride ourselves on providing reliable workmanship, professional service, and attention to detail on every project we undertake. From extensions and refurbishments to general maintenance and complete property improvements, our skilled team is committed to delivering work to the highest standards, on time and within budget. At National Construction and Maintenance Ltd, customer satisfaction is at the heart of everything we do. Our reputation has been built on honesty, quality craftsmanship, and long-lasting relationships with our clients.
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Artistic design & construction LTD
Rating: 5 out of 5
Extension Builder in Whetstone
Hi, we are a construction company with many years of experiance. We are a team of professionals, very reliable and delivering projects in good timeframes . We build new houses, house extensions, loft conversions, refurbishments, driveways and patios, landscaping and garden design. We value our customers, always keeping to deadlines and completing projects to a high standard.we provide references on all our projects .Please check our profil photos and we can organise property visits
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Latest review:
Extensions- 23 Feb 2025
I am extremely pleased with the job has done for me. The work was absolutely spot-on, and nothing was too much trouble for them. They went above and beyond to ensure everything was completed to the highest standard and, most importantly, made sure my house was safe throughout the installation process. What really stood out was how much they looked after me—not just in terms of the work itself, but also by helping me keep costs down wherever possible. They even found a smart and efficient way to lift and install the beams, despite the uneven surface and the bricks being spread all around. Their problem-solving skills and commitment to getting the job done right were truly impressive. A special mention to Sandu—he was simply unbelievable! His expertise, dedication, and attention to detail were outstanding. I couldn’t be happier with the job, and I highly recommend this company to anyone needing RSJ installation.
Nick
Rating: 5 out of 5
Extension Builder in Whetstone
With 14 years experience in construction I undertake all kind of jobs: built, repairing and maintaining. I'm a reliable and a good communication person. Delivering great results within the planned time frame and budget is at the basis of what we do. We work closely with our clients, providing advice, discussing alternatives and taking on responsibility for the execution of all activities. We arrange orders, deliveries and returns of materials.
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Latest review:
Carpentry- 26 May 2024
Nick is fantastic and a highly skilled professional. I am very happy with his work. He communicated very clearly. He understood what I wanted and the end result went above and beyond my expectations. I am so happy I’ve found him and definitely using him for future work!
BOTNARI CONSTRUCTION
Rating: 4.4 out of 5
Extension Builder in Whetstone
We provide a service of maximum quality and client satisfaction . Having over 25 years experience in the field we have completed jobs big and small to the best standard .
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Latest review:
Electrical- 26 Jul 2026
Genuinely one of the worst builders we have come across. David rewired the flat and Stefan plastered the hallway. David is NOT qualified as an electrician and cut corners wherever he could. David leveraged us for money mid job and in the end left the job without finishing and without providing a certificate. David ran cables behind door frames (awful idea), got the cheapest material, forgot where holes were for spotlights and switches among many issues which meant we had to constantly ask our builders to fill the holes and make good. Stefan did the hallway plastering without putting on mesh. The plaster cracked within 2 weeks and the paint keeps cracking and will be a constant problem. When asked to come back and fix the issue - he point blank refused. They were the cheapest quote but we really hope we had gone to someone else
Brando Developments Ltd
Rating: 3.7 out of 5
Extension Builder in Whetstone
Brando Developments, with a solid decade of trading since its establishment in 2012, has become a trusted name in the industry. Specializing in a range of services, we proudly collaborate with local estate agents, addressing diverse needs such as maintenance issues, end-of-tenancy work, and expert painting and decorating services. Our dedicated team includes skilled professionals, including gas engineers, electricians, and roofers, ensuring that we offer comprehensive solutions for our clients. With a proven track record, we continue to provide top-notch services, making property management and development a seamless experience for our valued customers.
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Latest review:
Bathroom Fitting- 10 Oct 2024
Really good team. The work was excellent. The only thing to comment is that the team could have finished the work faster but overall I’m happy with their work. Very involved and caring team. It felt like they were doing their own bathroom. Good price as well.
Prime Build Renovations Ltd.
No reviews yet
Extension Builder in Whetstone
Refresh Renovations was established to change the way the world renovates. Well-planned, well-managed, and well-communicated, renovation projects that deliver on the vision you have for your home. Our streamlined approach focuses on thorough consultation and planning stages, combined with transparent communication from start to finish. A stress-free and enjoyable renovation you can be proud to show off.
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SpectRoom property Maintenance LTD
Rating: 5 out of 5
Extension Builder in Whetstone
At SpectRoom Ltd we pride ourselves for being prompt, working to budget and on time and are very clean. We will fully complete any project including all decorating flooring tilling construction and all other property maintenance jobs to customer requirements and for that we will be more than happy to provide local references. SpectRoom for spectacular rooms.
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Latest review:
Extensions- 22 May 2019
Jacob was very accommodating and flexible. His team were great and he completed the work nicely. There was some splatter from the cementing on to my neighbour's wall. He tried to clean it off but it wouldn't all come off. Therefore, he went out and bought some paint and repainted their wall. I would get him back for more work without hesitation. When looking for a builder - they have to be honest, work hard and to an excellent quality without cutting corners. They should be responsible to ensure neighbours property isn't damaged and provide consultancy as what we want and want is realistic can differ significantly! - and if any issues rectify them once the job is complete and of course provide good after sales. I have used several builders over the years - very few tick all of the above boxes. Jacob certainly does.
Bathroom Renovation
Rating: 5 out of 5
Extension Builder in Whetstone
Im a multi trader and have a wealth of experience in construction on large projects and sites. We do bathrooms, kitchens, plastering, flooring, general renovations and extensions. We ensure we exceed clients expectations go above and beyond and work with a high standard and quality.
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Latest review:
Plastering- 8 Jun 2026
We were thoroughly pleased with Bathroom Renovation, Bahram and the services provided. We required stud walls throughout our apartment, ceiling replacement and ducting/pipework concealing. I can only say that Bahram and his communications have been a breath of fresh air. The team are efficient, friendly and get the job done - most importantly Bahram takes pride in the work his team complete. Our job was relatively urgent and Bahram offered what I feel was a fair price, remained communicative and had his team readily available to get the job completed within the timeframe. Most importantly, as with it seems all building works, jobs can grow slightly, but Bahram’s considered approach and advice was invaluable. We increased the scope of our works mid-job, and are really pleased with the results. Fair pricing, someone who has pride in their work, and a job well done.
THE WISEHOME GROUP LIMITED
Rating: 5 out of 5
Extension Builder in Whetstone
We're big enough to manage large projects and small enough to show care. Our aim is satisfied clients - Pre and post images - Excellent customer ratings and hopefully your endorsement. We're a diligent crew, committed to providing quality within a budget.
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Latest review:
Extensions- 9 Jun 2016
Celli Property Care did a very good job. They undertook some structural work for us; knocking through a wall, dismantling and underpinning a chimney breast and installing beams to open up our downstairs living area. All the work was done professionally and signed off by building control. They installed 2 new bathrooms, a new kitchen and did all the plastering, tiling and painting and decorating. They also renovated our floorboards, which now look amazing. The communication was excellent throughout, with Celino the project manager always going the extra mile to keep us informed and discuss options and programme. The builders were also very considerate. We are very happy with the end product. I would recommend them to others. Thanks Celli Property!
Bulbuilder
Rating: 4 out of 5
Extension Builder in Whetstone
I am from Bulgaria.
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Latest review:
Lovely father son business, professional, friendly guys. I asked them to build a plasterboard wall in order to create an extra bedroom in my house, the wall was finished well, within two days and they charged me a very reasonable rate, as a young women in business I find that tradesmen often try to overcharge me but these gentleman did not. They also took a look at leak that had occured which another professional plumber failed to solve and tried to charge me over £200 just to take a look! I have and will book them on a number of other jobs.
luan meta
Rating: 4.7 out of 5
Extension Builder in Whetstone
Hello my name is Luan and my company has been established since 2014. I have over 10 years' experience in the Building industry and take pride in the work that we carry out. Based in Enfield. Building services such as Carpentry, Driveways, Extensions and loft conversions. We offer free quotations and advice so give us a call.
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Latest review:
Repointing- 4 Nov 2019
Great communication, reliable and punctual. Luan offered good advice and completed the job quickly. Would definitely recommend.
Onyx Services Limited
Rating: 5 out of 5
Extension Builder in Whetstone
Onyx services Ltd which is part of the Wigwam construction Group has been in the home improvements business for many years. All engineers are Gas safe and NIEIC registered. We undertake all types of building, construction, plastering, painting as well as heating, plumbing & electrical installations. Onyx has £5 million public liability insurance. All work comes with written garuantee. All major debit/credit cards accepted.
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Latest review:
Extensions- 13 Feb 2025
Shami and his team had been fantastic from start to finish! Before hiring his team he showed me around a house his team built, which was amazing to see. His communication was excellent throughout the progress of my renovation and very reassuring. Even as I had made changes to the build, he was very helpful in planning and adjusting to my needs. His team had built a single floor rear extension, including a new kitchen, bathroom suite, full electric rewire and plumbing from scratch. Also, comparing his team with six other builders, he had one of the most competitive quotes for the build. Post finishing the job, any issues I had were resolved immediately putting me at ease! I would definitely hire Shami and his team for any future jobs.

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.