How it works
Post a job
Tell us about your job, and we'll alert suitable extension builders in Whetstone. It’s simple and free.
Tradesmen respond
Once your job is posted, you'll get responses from interested extension builders through the website.
Review and choose
Browse profiles, work history, and feedback, then choose who you wish to share your details with.
Browse Extension Builders near you
Browse extension builders near you, read profiles and contact them by inviting them to quote.
BuildOnTime LTD is a family business and one of the fastest growing building companies in London.We have over 20 years of experience in all types of building and construction works.Our team is structured from highly qualified, friendly and ambitious workers.We are your... read more
Latest Extensions feedback review:
Two storey side extension
Paul is a trustworthy, pleasant and hardworking man with a dedicated team of skilled, friendly and polite men who worked responsibly from early morning till late afternoon to get the job done. The crew made sure that the site was clean and...
We build, refurbish and extend buildings. Our strong regional presence allows us to foster trusting and beneficial working partnership with our customers, consultants, supply chain and local communities. read more
Latest Extensions feedback review:
Side Return/Extension
DPS completed a single story side return extension which we were really happy with. Ralf spent time with us during the beginning of the project to plan out timescales, price and ideas on finishing. The bit we most enjoyed with DPS though...
We have been in the building trade for 25 years, we are a professional building company specialising in New Builds, Extensions and Loft conversions & renovations in London & Hertfordshire. The majority of our work is through personal recommendations. We are always happy to... read more
Latest Extensions feedback review:
Rear extension and loft conversion
I will rate Lee and his team 9.5/10. In summary, highly recommended to anyone (as a matter of fact he has already done another job down the street). Lee is very fast in delivering the project. All other builders told me my project needs 6...
Welcome to Woodhouse Builders Ltd, we cover all aspects of property maintenance and no job is too small or big for us. We employee a reliable , trustworthy and hard working staff.Our success is built on providing the best services and ensuring that all our customers are... read more
Latest Extensions feedback review:
Kitchen/rear extension and loft conversion
I can highly recommend choosing Art to do work. Our builder was called Servet and he is beyond good. He is a perfectionist and has great ideas to make the build even better. Servet and his team did a full house renovation plus extension for...
Qube Design&Build is an experienced Design & Construction company specializes in residential Extensions, Loft Conversions, Full refurbishments, New Homes and Contemporary Gardens.We undertake all design, planning & building control submissions, structural calculations and... read more
Latest Extensions feedback review:
Side Return and New Bathroom / Stairs
Working with Sam was brilliant... honestly it makes such a difference having an architect who is also in charge of the building work and vice versa. He's a great communicator, very trust worthy, efficient and with a keen eye for detail. I...
We are a family run business with over 25 years experience. We specialise in loft, single and two story extensions and refurbishments. We take pride in our work, making sure the customer comes first when it comes to quality and satisfaction. It is never about how fast one... read more
Latest Extensions feedback review:
2.2M by 5.2M single storey extesnion
DMCA completed the extension on time and within budget. The finish is very good. All the tradesman working on the extension were polite and respected that we were living in the property during the conversion and went out of there way to...
Established builder with excellent experience since 2005 and have great knowledge in the trade. We are known for excellent work standards, health and safety and high quality projects within budget and timeframe for completion. read more
Latest Extensions feedback review:
Front door porch
I would have no hesitation in recommending this company. Resonably priced, realiable, clean and trustworthy. We had a front porch built, all the brick work was taken care of by Zen exactly as we wanted it and the double glazing was provided...
Established in 2013, and most of the time we are engaged in: 1. Property Renovations and Remodellings – involving extensions, conversions, repairs and refurbishment works on residential properties. 2. Small/middle size commercial projects – involving repairs and... read more
Latest Extensions client reference:
Sorin's team is absolutely great, they have dealt with everything, from the very beginning, when I was totally confused where to start, to the very end, when they've left my property spotless, ready for use. They talked with me about my...
AMG places great emphasis on the importance of up to date methods of design and construction. As a key player at the forefront within the market place we specialize in building Extensions, Loft conversions, Drylining, ceilings, painting and decorating to complete internal... read more
Latest Extensions client reference:
Stefan did an extension for my flat from the installation of structural steel, to the roof, and demolition. To building the shell and all cosmetic work inside. I am very happy with the work. Time keeping was good, pricing was good he was...
CONSTA Ltd - small construction company based in London, and characterises in flexibility to complete various jobs . There is list of different small or awkward completed jobs in our portfolio as well as more significant projects as loft conversions, extensions, full house... read more
Latest Extensions client reference:
Re-plastering two ceilings, Re-fitting bathroom & kitchen. Complete decoration throughout the flat. Work was carried out efficiently & to a high standard within the time frame anticipated and within the agreed budget.
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... read more
Latest Extensions feedback review:
Extension
I contacted John for a quote he came on the day as he promised, he gave me a quote which was reasonable, he started when he said he would, he came very proffessional, he really knows how to manage clients expectations and he was excellent...
We are RIBA registered architects with a wide range of experience of over 25 years within architecture, design and construction. We are experienced at new builds, full refurbishments, extensions and conversions, and have completed numerous residential and commercial projects... read more
Latest Extensions client reference:
Phil was great to work with, listened carefully to our aims and came up with lots of great ideas many of which we went along with. Once we decided how to proceed, he managed the process all the way through planning, including making...
As a civil engineer and principal building contractor we consult, design, construct and project manage any dwelling and commercial projects from minor repairs to complete new-build as well as any type of restoration/renovation and basement construction projects. read more
Latest Extensions feedback review:
Full refurb of house including extension and loft
The best team in London to work with they are highly skilled professionals and very easy to work with looking forward to work with them again
carpentry-first and second fix, design bespoke furniture and built. flooring, general maintenance. read more
Latest Extensions feedback review:
Kitchen Extension and renovation
I have only got positive things to say about this project - we are extremely happy with both the end result and the overall process. This was a big project for us, involving an extension of our kitchen and conversion of our garage into an...
We are a team of experienced professionals who carry out complete extension building and refurbishment projects. Our clients praise us for the professional and responsible attitude we bring to any project. Please do keep an eye on new photos posted as we progress with our... read more
Latest Extensions feedback review:
General works on flat
Myco carried out some works to our leaking roof terrace which included: (i) diagnosing the cause of the leak, (ii) taking up and completely replacing everything above the roof timber joists, (iii) laying new tiling on the terrace, and (iv)...
We take a bespoke approach to all projects and are not satisfied until you are satisfied. Our 16 years of experience provides us with a vast breadth of home construction knowledge, meaning we rarely encounter any surprises. We also have many references in and around the... read more
Latest Extensions feedback review:
Demoish Garage and Build ~56 Sq Meter extension
I hired Tim and his team to demolish an old garage in the garden and to dig 2 trail holes to expose the existing foundations of a carport. Tim and his team arrived on time, were very hard working, friendly and ensured the site was left...
With over 12 years of experience in the construction industry and an admirable track record, M&G Home Improvement can have confidence in providing remarkable levels of competence and expertise from new-builds to all refurbishment projects. We are very well recognised within... read more
Latest Extensions feedback review:
Outbuilding project
Outhouse completed containing a bathroom, lounge room/office and a utility/storage space. Excellent work completed by Shahin and his team who were efficient both in accommodating last minute requests to changes in design and quality of...
R.A.S Construction and Design Ltd is a well established company specialising in all aspects of construction and hard landscaping work. Our work is carried out by our own employed teams and we offer free advice and quotations. All our work is guaranteed and fully insured... read more
Latest Extensions feedback review:
Renovation and Extension of 1 bedroom Victorian flat
We had a one bedroom lower ground floor garden flat and did a side return and extension into the garden. The flat is in West Kensington area. We also did a full internal refurbishment and moved just about every wall, moved boiler, new...
We have spent 15 years in the construction sector. Having experience both in the private sector and commercial sector, we use innovative and modern technology to complete your work. In effect, we achieve higher precision, shorter work times and due to this a lower cost for... read more
Latest Extensions feedback review:
Rear extension
Mario is a brilliant guy with full knowledge of the job. His workers were very punctual and hardworking and finished the job well. I would definitely recommend Mario to my friends and relatives and will use him in the future. Excellent...
Here at ”Home Decorating” we believe in customer satisfaction in the finished product and we are committed to giving the best results every time. Our motto: happy clients are returning clients :) read more
Latest Extensions feedback review:
Kitchen extention - plans in place.
We have had the best possible experience dealing with Home Decorating. Gin and Jon are a powerful team effectively combining Gina's client facing capabilities with Jon's immense building experience. Highly recommended!
Trusted by experts
Don’t just take our word for it, homeowners love MyBuilder too. We’re proud to be rated by Mumsnet.