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

3157 Results

Sort by:

Newstar Building Services Ltd
Rating: 4.9 out of 5
Extension Builder in Whetstone
HI my name is Bill and I run a building company. All our work is base on recommendations costumers We work all around London.
Get in touch
Latest review:
Hard Flooring- 22 Oct 2025
Enea did an incredible job, and we’re beyond happy with the final result. He was very accommodating, helped us choose the right tone of varnish beforehand, and kept us updated throughout the day by sending pictures of his progress (as we were both at work). Enea is trustworthy, and even though we didn’t have the chance to meet him in person, he left the flat securely, taking care of our keys and door. We highly recommend Enea!
Kind Builders ltd
No reviews yet
Extension Builder in Whetstone
Welcome to Kind Builders Ltd, A little about us With many happy and returning customers, you can be sure of being well looked after. Our ethos is to deliver a professional service you can rely on. I work with a small team of trusted colleagues, who communicate and work together well. Our customers are accustomed to the outstanding quality of projects we complete, by sourcing quality materials with experienced installers we create truly bespoke masterpieces that last our customers many years. The main work we undertake But are not limited to Building works Full refurbishment Extensions / Conversions Loft Conversions Garage Conversion New Builds Plumbing Pipe replacement Pipe repair Gas Safe Gas Safety Checks - CP12 Boiler Installation Boiler Fault finding Availability We are available during working hours, Monday to Saturday. Outside of those hours you are welcome to contact us via email or request a call back.
Get in touch
Bawabuilder
Rating: 5 out of 5
Extension Builder in Whetstone
We can extend
Get in touch
Latest review:
Fencing- 13 Mar 2026
We hired Bawa to install new fencing, and he did a fantastic job from start to finish. You can immediately tell he’s an all-rounder who understands construction very well. The work was carried out efficiently and to a high standard. Bawa has a great attitude, is very hard-working, and clearly takes pride in what he does. Communication was easy throughout, and the whole process felt smooth and professional. It was a real pleasure having Bawa work for us, and I wouldn’t hesitate to recommend him.
Nova Building LTD
Rating: 1 out of 5
Extension Builder in Whetstone
General Builder – Job Description for Quote I am an experienced general builder offering a wide range of construction and property improvement services. My work covers all aspects of building, from small repairs to full renovations, ensuring high-quality workmanship and attention to detail at every stage. Services include brickwork, plastering, carpentry, painting and decorating, tiling, flooring, and general maintenance. I take pride in delivering reliable, efficient, and cost-effective solutions tailored to each client’s needs. All work is carried out to a professional standard, with a strong focus on safety, cleanliness, and meeting agreed deadlines. Fully committed to customer satisfaction, I maintain clear communication throughout the project to ensure expectations are met and results are delivered to a high standard.
Get in touch
Latest review:
Bricklaying- 6 Jul 2026
Andrei built me a front wall, brilliant job, will certainly use him again. Really nice guy as well. If you have any any sort of work to be carried then use this guy, best craftsman we have ever had, come and see his work.
Springfield Conversions
Rating: 4 out of 5
Extension Builder in Whetstone
I have been in the building trade for 35 years. I undertake all aspects of building work on residential properties. I am experienced in refurbishments, extensions, garage conversions, all aspects of landscaping, interior and exterior decorating, installation of bathrooms and kitchens, driveways and all minor repair work.
Get in touch
Latest review:
Extensions- 1 Aug 2023
Originally quoted for a downstairs extension and wall interval wall removal, I went ahead with the wall removal and was very pleased with the result - Chris and the other chap were lovely and did a great job; will hire again in the future.
Watan
Rating: 4.5 out of 5
Extension Builder in Whetstone
Hi everyone, Here at Watan Building & Renovation Ltd we undertake all aspects of domestic construction works. We have been trading for over 10 years, we are happy to give advice and free estimate on your work so please get in touch.we carry out all works on domestic buildings such as: Full house renovation, Bathroom, Kitchen, plastering, Flooring, Rendering Decorating, Electric, Plumbing (gas safe) Chimney removal, Fencing, Extension with a fantastic quality work and reasonable price.
Get in touch
Latest review:
Plastering- 28 Jul 2025
Watan and his worker did a fantastic job on the lime plastering, will certainly be using in future. Extremely affordable and professional with clear communication throughout.
Dudzic Constructions
No reviews yet
Extension Builder in Whetstone
Builders Company with 15yrs experience. Refurbishment and Construction .Maind thing Extantions Lofts and basements. We are very experienced team.Urs strength is Pestering on very high standard.
Get in touch
BrownBricks Construction
No reviews yet
Extension Builder in Whetstone
"Welcome to Brown Bricks Constructions, your local builders with a witty touch! From painting and decorating to handyman work and everything needed within the house, we've got you covered. With our skilled craftsmen and friendly approach, we turn your house into a home. No task is too big or small for us – whether it's fixing a leaky faucet or transforming your space with a fresh coat of paint, we handle it all with precision and flair. Trust Brown Bricks Constructions for quality workmanship, attention to detail, and a touch of local charm. Let's build something wonderful together!"
Get in touch
MP Fast Brickwork Contractors Ltd
No reviews yet
Extension Builder in Whetstone
Hi, I’m an experienced bricklayer with over 10 years in the trade. I specialise in all types of brick and block work — from garden walls and extensions to large-scale construction projects. For the last 4–5 years, I’ve also been working as a foreman/supervisor, managing teams and ensuring top quality on every job. My team and I work fast, professionally and always deliver high-quality results with great attention to detail. I take real pride in my work, and many of my customers are happy to recommend me. You can also see our projects on Instagram: @m.p.fastbricklayers
Get in touch
Keki construction ltd
Rating: 3 out of 5
Extension Builder in Whetstone
Keki Construction is a family run Company That specialises in, Design and build projects inc .Extensions .loft conversation . Interior and exterior inc plumbing and electrics.
Get in touch
Latest review:
Extensions- 4 Jul 2019
Unfortunately for us, it was not made clear that both Skifter and Mo have full time day jobs that they fit this work around. Additionally for us, the constant debates about what is and is not included in the quote got tiresome.
D&T building company
No reviews yet
Extension Builder in Whetstone
we are proud to announce to you D&T building company we cover all building work from wall repairs to full extensions, driveways, built BBQ’s, out houses, converting rooms into gyms and fencing, with over 20 years experience and a high standard of work, because of the pandemic and things slowing down it is time for us to branch out to new areas and new people, our portfolio is very large with 100% customer satisfaction and a very friendly team that can carry out all your needs
Get in touch
BS construction
Rating: 5 out of 5
Extension Builder in Whetstone
Hi, I’m brar I’m working from last 8 years I’m construction field I’m expert in whole building work special extension, roofing, pvc window door glass, flooring, paints etc. thanks.
Get in touch
Latest review:
Windows & Doors (uPVC & Metal)- 3 Feb 2025
The job was done professionally and we are happy. I would recommend BS construction
Prab builders ltd
Rating: 5 out of 5
Extension Builder in Whetstone
Prab Builders is one of the leading and fast growing constructions companies in the UK who take projects and work in a atmosphere where one can get everything under one roof. We have a team of experience people and we understand what our clients want. And as result we give total satisfaction to our customers and convert ideas into reality to give our best We are in this field from the past 18 years .Our service is professional,caring,and high quality and Customers are our First Priority
Get in touch
Latest review:
Extensions- 8 Dec 2021
Me and my wife are very satisfied with Prabbuilders work. What stands out with Prab builders is that they do every task as if they are doing it for their own house and with work they are meticulous and exceptional. What we started with and how our extension looks now is simply amazing and the way they explain about what will look good(Color/ the structure etc ) is commendable as we both were not sure what decision to make, but after completion we are overjoyed to see how excellent it turned out to be now. I would recommend them anytime based on their skill ,eye for detail, being punctual and the hard-work they invest into every task to make sure we are getting the final product the way we dreamt of.
DRS construction
Rating: 5 out of 5
Extension Builder in Whetstone
we are builders who construct the dreams of others. we have the experiece as cscs skill worker about 5 years now doing our own work contact us if you want to get good work experience
Get in touch
Latest review:
Plastering- 23 Sep 2025
These guys are superb. Came to look at the job, quote & arrange a start date. Friendly and polite at all times. Knowledgeable about best techniques to use. Arrived early, worked till late to get the job done in good time and to great standard. Kept to their quoted price. Highly recommend
Petrit Gjoni
Rating: 5 out of 5
Extension Builder in Whetstone
Welcome to my profile, My Company is Gjoni Contractors LTD and my name is Petrit, a hard working men with 10 years experience in landscaping, decking, fencing, extension, loft conversion, partition, plasterboard, plastering, painting decoration, tiling, laminating, plumbing and electrical. My company is Gjoni Construction and consists of 10 employees . I provide quality service to my customers and make sure we have satisfying results. BUILD YOUR DREAM HOUSE TOGETHER !
Get in touch
Latest review:
Landscaping- 10 Jan 2026
Fantastic workmanship and finish will use again
Lux Development LTD
Rating: 5 out of 5
Extension Builder in Whetstone
With a BSC Hons Degree in Construction management and having worked for larger reputable building contractors in the UK. We will Ensure you get the highest Quality of Work at reasonable Prices. Customer Satisfaction is our First Goal of any Project we Undertake. We undertake all types of construction and building projects from Painting and Decorating, Flooring, Roofing, Plastering to More Complex Projects such as extensions.
Get in touch
Latest review:
Painting & Decorating- 12 Feb 2019
He truly showed professionalism that I had struggled as a guest house operator to get from handy people. He would go out of his way to satisfy. The finished redecorated room project was a masterpiece and took a little longer than planned because of the weather but he gave it his all! I am pleased I took a chance on him as there was no review on his profile when I hired him. I would however, pay attention to work and point out issues as they come up otherwise, you will have dirt and rubbish to content with as the workers leave all the mess after work.

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.