How it works
Post a job
Tell us about your job, and we'll alert suitable extension builders in Upper Holloway. 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.
I've been working in building trade for over 20 years , I can undertake any job small and big from foundations to the roof and anything between. I can provide any references and I have insurance of £5 million. Me and my team take pride at what we do and we do it first... read more
Latest Extensions feedback review:
Small Side Return Extension
Alban and his team have just completed a small side-return extension and complete kitchen & bathroom refit. The team were great, completing the work in seven weeks despite the complexities of the site. The standard of work is excellent and...
Bluelime is a one stop shop for all your planning, interior design , structural engineering and construction needs. With over 8 years worth of happy customers we pride ourselves with our honest and inventive solutions. Free initial consultations and proven track record of... read more
Latest Extensions feedback review:
Plan, design & construct side return extension
Alton and his team at Bluelime have been incredibly helpful and enthusiastic throughout our design and planning process. From the start, Alton took his time to understand our needs and propose several cost-effective ways to improve my home...
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:
Advice and rough quotes needed
Sam was great and we'll be inviting him to give a full quote for all the work we need when our house purchase has gone through.
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:
Single storey rear extension
We had a very positive experience with Ralph and DPS consruction. The build was completed on time with very good attention to detail. Ralph stands out from the crowd due to his outstanding communication and availability. His team is hard...
PAL LEE GROUP LTD is a London based full-service construction company carrying out its services over the capital. As a full-service construction firm, we have the ability to use our own team of skilled craftsmen along with a talented group of speciality contractors and other... read more
Latest Extensions feedback review:
Kitchen extension and fit out
Pal Lee carried out a kitchen side and rear extension in our flat. They have been very professional throughout the project, careful to detail and easy to communicate with. The result is outstanding. We are so pleased with the work carried...
The company’s success is built on the strong belief of quality work, attention to detail and on-time completion. Rea Construction Ltd has an in house team of builders, architects, and interior designers with all the relevant skills and qualifications which enable us to... read more
Latest Extensions feedback review:
Rear extension
We are nearly at the end of the project and so far we have nothing but positive things to say about REA Construction. Very professional and Renato is very easy to work with and flexible in his approach to the project. REA have done the job...
GLORUM Limited is a London-based construction company with 10+ years of building experience in domestic and commercial projects. GLORUM Ltd is your one-stop construction company made up of highly qualified and skilled tradespeople, designers and engineers that can... read more
Latest Extensions feedback review:
Full refurb and single storey side return & wrap around
Very impressed with Glorum from start to finish. This was one of our first projects so we spent a lot of time researching who we could use and all I can say is we made the right choice. Product was improved enormously from the initial plans...
DC Building and Decorating is a well-established company which has built up a first-class reputation in the building industry by successfully delivering high-quality projects. The company's core values are quality, efficiency and reliability. We're proud to say that we've... read more
Latest Extensions feedback review:
Kitchen and Loft Extension
When we first met Dragos and Andi, my wife and I knew we wanted to work with them even before receiving their initial quote. They were knowledgeable and personable and were well aware of all the current trends that interested us. Their...
Estimate Prices From: * Loft Conversion £40k(labour+materials+scaffolding) * Home Extensions £2-2.5k per square metre * Basement £3-8k per square meter (labour+materials). * Bathroom refurbishment £6k (labour). * Kitchen installation £1,8 k... read more
Latest Extensions feedback review:
Brick extension
Just wanted to say a massive thank you to Janusz and Chris for the absolutely excellent work they have done when building our extension. We are so pleased we chose them to do it for us. They were clean and tidy, always on time and worked...
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 feedback review:
extension to ground floor flat and refurbishment
Phil is currently working with me to design an extension. He has being really helpful and came up with innovative ideas to improve my initial plans. The plans he has submitted are really good and way beyond my expectations. He has kept me...
We Have A Portflio That Speaks For Itself, With Over 20 Years Experience In Construction Providing Customers A Reasonable Price With Quality Work To Show For We Have No Doubt That We Meet Customer Satisfaction. Despite Having A Strong Resource In Manpower We Only Do 2... read more
Latest Extensions client reference:
Phenomenal job, very happy with the work and staff were delightful. Probably best company in South East region, will definitely be using again.
Hi there! My name is Gaz and I am a builder who has been in the building trade for well over 10 years. I have completed numerous jobs all over London and greater London, my specialities include; loft conversions, extensions as well as general refurbishments. My previous... read more
Latest Extensions feedback review:
Rear extension to house
From the first meeting to discuss the job the approach from Azure was very professional. There were many elements of the job which required a design input from the builder, Azure were able to provide value engineering solutions to satisfy...
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:
Kitchen diner extension to start 2 April.
Quite simply the best builder I have had the pleasure to work with. Dave and his team have worked tirelessly to build my extension, wet room and redecorate much of the rest of the house. I can’t think of a single fault with this team;...
Inside Out was formed in 2009. We are an established, London based building company operating throughout London and within the M25. We deliver an honest and straight forward service, with quality workmanship at the forefront of everything we do. read more
Latest Extensions feedback review:
Single storey rear extension
After a terrible experience with a previous builder, it was such a relief to bring Nico and his team on board to finish off our extension. Throughout the build they have been helpful, polite and tidy. They provided a budget and finish date...
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)...
Signature 1 Construction LTD is a family run business with over 20 years experience in the building industry. We specialise in extensions, loft conversions and full house refurbs. Every job we undertake we take great care of the clients house and are experienced project... read more
Latest Extensions feedback review:
Care Home Extension
I highly recommend signature 1 construction, the experience has been great from the start. Marin and his team are great and always explain each stage of the build and happy to answer any questions/anxieties you may have. Costa the foreman...
Mark and his team of 8 have over 100 years of trade experience between them. Each member of the team has honed their craft in a specific trade from bricklaying to plastering, extensions to renovations. Working so close to each other and as a team, they create extensions and... read more
Latest Extensions feedback review:
Kitchen extension
Mark and his team did an amazing job on our extension. We will shout it out from the rooftops. They walked us through all aspects of the build and where so friendly and clean. If we ever extend anything else we will look them up.
At PACHO Build, we have years of experience in the building and joinery industry. We have tackled projects large and small and are always eager to show our creative abilities to new clients. Through experience we understand communication is the key factor to a successful... read more
Latest Extensions feedback review:
2-storey Extension, High Barnet, Herts
We chose Pacho Build Ltd over a number of other contractors to complete a 2-storey extension of our home. We felt that Johnathan showed greater enthusiasm and understanding of our needs when surveying the house, and that led to our choosing...
Craft of London are an established building company, specialising in design and build projects, creating bespoke interiors and homes. Our workmanship is of the best standard in London for either small, medium or grand designs. read more
Latest Extensions feedback review:
Kitchen Extension in North London
Kel and his team worked on my single storey extension with bifold doors and glass roof. He also did some landscaping in my garden, replacing the fencing and installing a raised patio with cedar battens to the side. Overall I was very...
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:
Rear Extension single storey
I am very happy with the work undertaken by Ionut and his team. From the initial engagement Ionut came prepared with the plans and talked through the job requirements to understand what we were looking to achieve. During the build I...
Trusted by experts
Don’t just take our word for it, homeowners love MyBuilder too. We’re proud to be rated by Mumsnet.