Extension builders in Willesden

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (19 reviews)

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

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 Willesden

3658 Results

Sort by:

Pacific Maintenance ltd
No reviews yet
Extension Builder in Willesden
G Maintenance ltd is a family run business who strive to achieve 100% customer satisfaction. We believe that the key to building good client relationships is through not only exceptional quality of work but also through creating trust. To create this trust we meet deadlines and ensure customer satisfaction on every project. We provide a complete property building and maintenance service and have expertise in all elements of the building trade. COMMERCIAL - DOMESTIC - INDUSTRIAL
Get in touch
SMBuilding Company Limited
Rating: 5 out of 5
Extension Builder in Willesden
20+years experience in construction.Working on all types of jobs;large,small and everything in between.Seasoned in extensions,brickwork,renovations,chimney removal,structural work and development,we ensure an exceptional finish. Competitive rates,we have natural drive to get jobs done. These qualities allow us to set out budgets,and time frames,allowing our clients peace of mind. See our about section,and soon you could be relaxing in the knowledge that your job will be done on time and budget.
Get in touch
Latest review:
Bricklaying- 4 May 2016
Sean was polite, friendly, efficient, clean, tidy and his work was simply the best, I cannot praise Sean's work highly enough, if you want a great tradesman you can trust and someone will do exactly the job you want and more then hire Sean now. Sean is a rare find mark my words HIRE HIM .....
AVisha Builders
Rating: 5 out of 5
Extension Builder in Willesden
Hi, I’ve been a builder for over 25 years now, working on mainly domestic houses I specialise in plastering and tilting. I have also completed extensions and loft conversations from start to finish. Happy to have a chat about your needs!
Get in touch
Latest review:
Plastering- 26 Mar 2025
I am really impressed about Avisha's job... quick response , great service with very reasonable price.... Will absolutely recommend...
Vadym Kutsak
Rating: 4.2 out of 5
Extension Builder in Willesden
I have 7 years in basement, underpinning, extension. Was working at company "Hughes design&build" Have good knowledge in job
Get in touch
Latest review:
Demolition- 20 Oct 2026
Very quick and very professional. Highly recommend.
SW Heating & Refurbishments Ltd
Rating: 5 out of 5
Extension Builder in Willesden
SW Heating & Refurbishments is a local refurbishment company specialising in complete property refurbishments, extensions and loft conversions, new heating systems and boilers. We take pride in all of our work and our aim is to provide you with a quality finish, tailored to your budget. With over 19 years experience, we have built up an extensive team of tradesmen allowing us to provide an outstanding service. We are fully insured and all our work is gas safe and NICEIC certified.
Get in touch
Latest review:
Conversions - General- 20 Mar 2024
Charlie & Richard did a great job. They visited my property to get an accurate quote. They let me visit another property they are developing which gave me confidence that they were more than capable of my job. They carried out the work quickly and to a high professional standard. Wouldn't hesitate to use them again.
Bask construction
No reviews yet
Extension Builder in Willesden
Backed by more than 30 years’ experience in the industry, Bask Construction Ltd have established themselves as one of the leading installers of all types of suspended ceilings, walls, and partitions in the Greater London area. From drywall to demountable partitioning systems, our installations are always completed to the highest possible standard.
Get in touch
Renaldo Dungu
No reviews yet
Extension Builder in Willesden
Hi , my name is Renaldo I’m a professional painter and decorator more than 3 years in industry I undertake big and small projects interior and exterior painting work, for more information please get in touch for a free quote .
Get in touch
H & F London Limited
No reviews yet
Extension Builder in Willesden
H & F London is a specialist construction company based in Hertfordshire & West London. We’re known for providing groundwork solutions & new builds for a variety of clients across London and Hertfordshire.
Get in touch
A Interiors Ltd
No reviews yet
Extension Builder in Willesden
Well established in the Greater London area, A Interiors Ltd is a trusted construction company. Skilled, reliable, and hard-working, have more than 30 years’ combined experience of delivering internal construction services and projects on time and budget, taking all the hassle out of renovating your property. Primarily serving commercial & residential clients in London and the surrounding areas. We take all sort of works like; loft conversion, etc.. Get in touch today for further details.
Get in touch
London Builders & Decorators
Rating: 5 out of 5
Extension Builder in Willesden
London Builders & Decorators has been operating since 2016 in London. We our general builders who carry out Extensions, Lofts and Full Renovations. Why not shortlist us and come visit one of our sites. We run 5-7 sites at once so there will be one nearby. We try to keep things simple so the customer knows what is being done. Building work should be explained and expectations should be managed. We are a Member of the Federation of Master Builders & Gas Safe Registered
Get in touch
Latest review:
Tiling- 22 Mar 2018
very professional work, the team was very flexible, patient and helpful with me adding some ideas along the way. I am very happy with the results.
Pithadiya Construction
Rating: 5 out of 5
Extension Builder in Willesden
We are new to MyBuilder but not new to building! We have over 12 years’ experience in the trade. Specializing in New Builds, Extensions, Loft conversion, Complete renovation and we are a professional, caring, and high quality building services. We are based in Hounslow, and we cover West London, North West London, South West London and all surrounding
Get in touch
Latest review:
Extensions- 17 Jun 2022
I have my rear house extension completed and a brand new kitchen installed by this firm. The project went brilliantly from start to finish despite the bad weather. The workers always turn up on time, rain or shine. Mr Ram and his team were pleasant to work with and they were always willing to listen to suggestions for improvement. They have eye for details making sure the works are completed to the highest standard without compromising the budget. I am pleased with the work and would highly recommend this firm unreservedly.
Project-Wise
Rating: 5 out of 5
Extension Builder in Willesden
We offer a friendly reliable service that is second to none and can put you in contact lots of past clients who will give us glowing references on request. I have spent 30 years in the building industry, a time served bricklayer who has gained a very good knowledge of all aspects involved and trade requirements. This is why I offer a service you can rely on and guarantee all our work, which is carried out to the highest standard.
Get in touch
Latest review:
Extensions- 6 Jan 2016
Dave has done excellent work at a fair price. His communication is excellent and he kept me informed of everything going on at all times. I would happily hire Dave again.
Ktl building Ltd
No reviews yet
Extension Builder in Willesden
We are a trusted roofing company specializing in loft coversond installation, repairs, replacements, and maintenance. Our goal is to deliver quality workmanship, reliable service, and lasting results for every customer.
Get in touch
Leo81
Rating: 5 out of 5
Extension Builder in Willesden
I am good at what I do and I'll do my best to get your house to look the way you want it to!
Get in touch
Latest review:
Restoration & Refurbishment- 19 Apr 2025
Positively, certain aspects of the finishing, particularly tiling, were carried out to a good standard. However, the overall experience was mixed due to significant issues. There were notable challenges during the project involving basic logistics and site management, leading to considerable inconvenience that seemed avoidable. Furthermore, the quality of workmanship was inconsistent; while some parts were good, other areas involving fittings and fixtures showed a lack of attention to detail in the finish, requiring later adjustments. Communication during the process could also be difficult, particularly regarding problem-solving and planning for materials. While we appreciated the parts done well, the project was let down by these inconsistencies and process issues, leading to some ongoing snagging and disappointment.
Titan Builders LTD
No reviews yet
Extension Builder in Willesden
We provide all construction related services. I am a multi trader and have been working in the field of construction for over 20 years. Judging by the responses I have received by my clients over the years, I take complete pride in my work and strive to exceed my clients’ expectations.
Get in touch
Luminous builders ltd
Rating: 3 out of 5
Extension Builder in Willesden
At Luminous Builders we bring design, build, and refurbishment together under one roof. We treat every property as a living structure — crafted with care, precision, and integrity. Whether you need a bespoke renovation, detailed interior finish, or full property transformation, our mission is simple: to deliver spaces that inspire, endure, and shine.
Get in touch
Latest review:
Bathroom Fitting- 26 Feb 2026
Worst job ever. The first day he came at 10.30am started the job left at 9pm said it would take a day & a half. The next day he said he would be here at 8.30am again he came at 10.30am & his words were I’m going to finish in 2 hours maximum. By 3pm he still hadn’t finished & I heard him speaking to someone on the phone saying that he would be there in 45 minutes.then he told me he needed a part for my job & he would be a couple of hours, he came back 4 hours later without a part.Again he was here till 9.30pm. He said he had finished. I went to look and his work was bad. I complained he said he would come back the next day. the next he said he had finished & I told him I wasn’t happy he came back the next day. He tidied up his mistakes.he shaved the bottom of the door off a bit as it wouldn’t close coz of the new tiles & he left, as he was leaving he said please give me a good review. I said I’ll tell the truth & he said but the truth isn’t good. He didn’t stick the threshold back on.

4.4

Top rated Extension Builders

Our Extension Builders in Willesden, are rated 4.4 out of 5 based on 19 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 Willesden?

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 Willesden 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 Willesden who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Willesden extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Willesden?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Willesden 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 Willesden extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Willesden home extension project is likely to cost.

Find extension builders in Willesden with MyBuilder

Hiring the right extension builder in Willesden 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 Willesden extension builders. Once your job is live, we’ll share it with home extension builders in Willesden who can express their interest.

Step 2: Compare different extension builders in Willesden

When you start receiving interest, review profiles of local Willesden extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Willesden extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Willesden, 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.

Willesden extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Willesden extension builder before hiring?

Before hiring an extension builder in Willesden or extension building company in Willesden, 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 Willesden?

An extension builder in Willesden 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 Willesden 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 Willesden?

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 Willesden 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 Willesden 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 Willesden

Can an extension builder in Willesden help with planning permission?

Yes, many extension builders in Willesden 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 Willesden handle everything from design to construction?

Many Willesden 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 Willesden help with materials and finishes?

Yes, most extension builders in Willesden 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.