Extension Builders in Colliers Wood

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (22 reviews)

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Some of our top rated extension builders in Colliers Wood

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Mario Services
Rating: 5 out of 5
Extension Builder in Colliers Wood
Mario & Alex Construction LTD specialise in construction and building services, complete property refurbishment, house extensions and loft conversions. Provides unmatched customer service. Our commitment to small,hudge integrity, providing the highest value and satisfied customers, has been the ingredient that has fueled our growth from the beginning. We ensure that all our work is professionally managed so that the result is of outstanding quality, cost-effective.
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Latest review:
Bathroom Fitting- 20 Jan 2023
We highly recommend Mario & his team. They fitted a new kitchen & bathroom to a really high standard within a short, timeframe. They work hard, are friendly, professional & honest, my neighbour even commented on how considerate they were! Upon first meeting Mario we were impressed by how organised he was. He arrived on time with the description we’d posted on my builder & went through it methodically. We had A LOT of questions! He answered all of them & didn’t rush us. We received a competitive quote within a day as promised. It included everything we discussed & he quickly answered our follow up questions. We wanted an accurate idea of the cost of electrical work & Mario arranged for his electrician to come & inspect/quote before we’d appointed Mario the job. Our kitchen & bathroom is complicated, with lots of difficult angles. Damp, unlevel floor, unlevel windows, a low ceiling were uncovered in the bathroom. Mario did well to identify solutions, giving us expert advice. Pipes were neatly chased into the wall. Underfloor heating & LVT, tiling, grouting & painting all done to a very professional finish. He kept us informed of progress, checked our preferences & was patient when we had supply delays, finding ways to ensure the job finished on time enabling us to move from our temporary accommodation back home in time for Christmas. He promptly fixed some minor issues after the job finished. We highly recommend Mario & would use him again.
Jc carpentry services ltd
Rating: 5 out of 5
Extension Builder in Colliers Wood
My name is John cox and I am the managing director of Jc carpentry services ltd…. We specialise in Main contracting/ Sub contracting/ Loft conversions/ Extensions/ Kitchens/ Bathroom refurbishment.
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Latest review:
Carpentry- 15 Aug 2025
I would 100% recommend John and his team. We have been really unlucky with 3 other builders taking off with our money and not completing the work. John is very professional, took on someone else’s mess and done a brilliant job. We wanted exposed oak rafter detail and the team done an excellent job. John is very good at problem solving on the spot when there are issues, he is very approachable and keeps you updated with the progress throughout the job. What he has been good at is also talking through different options with us before doing different sections of the work and he does not take short cuts. If you need excellent honest builders John is your guy! We will get the decorations done and post the end product.
REWORKS LONDON LTD
Rating: 5 out of 5
Extension Builder in Colliers Wood
Our team comprises eager on-demand workers, with years of experiences, who deliver exceptional services to both residential and commercial customers all around London. Whether you need a painter that will not miss a single mark, or an electrician that assists you in emergencies, we will make sure to send you our specialized and competent workers for all your needs.
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Latest review:
Gas Work- 11 Dec 2020
Repaired and very happy!
Acelux Ltd
Rating: 5 out of 5
Extension Builder in Colliers Wood
We offer a wide range services from a minor works, extensions to a complete refurbishment. We are Electrical Certified Gas Safe Certified Trust Mark Government approved Contractor. Considerate Construction Member A family run business
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Latest review:
Acelux did a brilliant job on our office refurb. We were very happy with the work completed as well as the service. They were able to come out of office hours during the bank holiday weekend, finish on time, and even stopped back in on Tuesday to make sure we were all happy with the works.
Adrian Kotynia
No reviews yet
Extension Builder in Colliers Wood
London based company specialising in building extension works
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Premier Spaces Ltd
No reviews yet
Extension Builder in Colliers Wood
We offer expert craftsmanship and exceptional service for projects ranging from minor repairs to complete renovations in both residential and commercial properties. Our London headquarters supports teams operating throughout the UK. Kindly specify your location and provide a brief description of the services you require. Thanks!
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M K maintenance
Rating: 4.8 out of 5
Extension Builder in Colliers Wood
Hi My names Mark. I have been painting and decorating/building for 45 years and have a small team that works alongside me. I am very reliable and have my public liability/insurance details. Once on site have a quick turnaround in completing the job to my clients satisfaction. I work clean and tidy at all times. I would always come before accepting the job to price up to ensure we are both happy with the agreement. Please do not shortlist me if you are not able to let me come and view the job.
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Latest review:
Painting & Decorating- 31 Oct 2025
Mark was puntual, professional and very fast to complete the paint job. And he was very nice too. Would highly recommend.
Valens Construction Ltd
Rating: 4.7 out of 5
Extension Builder in Colliers Wood
We work in construction industry for many years and doing all type of building work which include Side & Rear Extension, Kitchen Refurbishment, Loft Conversion, Convert into HMO, plumbing & electrical, carpentry etc
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Latest review:
Kitchen Fitting- 1 Feb 2026
Valens Construction done a good job fixing the kitchen. Made sure every step was done with extra care
Ionut
No reviews yet
Extension Builder in Colliers Wood
My name is Claudiu, and I have over 10 years of experience working in the construction industry. Throughout my career, I have developed a wide range of skills as a Multi-Trader and Handyman, delivering high-quality workmanship across various types of residential and commercial projects. My expertise includes complete bathroom installations and renovations, wall and floor tiling, flooring installation (laminate, vinyl, and hardwood), painting and decorating, general maintenance, repairs, and other finishing works. I am experienced in working independently as well as part of a team, always ensuring that projects are completed to a high standard, on time, and within budget. I am reliable, hardworking, and take pride in my attention to detail. I have a strong understanding of construction processes and can adapt to different tasks and project requirements with confidence.
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AEE Construction Ltd
Rating: 5 out of 5
Extension Builder in Colliers Wood
General renovations, electric, plumbing, decoration, painting, kitchen fittings, tiling, flooring, bathrooms, extensions, loft conversions and property maintenance
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Latest review:
Handyman- 27 Jul 2023
Very professional and polite man. Job done neat and professionally. Would highly recommend.
Reynolds Building and Maintenance Services
Rating: 5 out of 5
Extension Builder in Colliers Wood
Reynolds Building and Maintenance Services provides professional building, refurbishment, extension and handyman services for residential and commercial clients. We specialise in house extensions, property refurbishments, renovations, structural alterations and general building work, as well as all types of handyman and property maintenance services. From full property renovations and home extensions to small repairs and everyday maintenance, we deliver reliable, high-quality workmanship on every project. Whether you need building work, refurbishment services, or a trusted local handyman, we provide a complete solution under one service.
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Latest review:
Carpentry- 4 May 2026
Quick, easy and tidy. Very professional
Torc Groundworks Ltd
Rating: 5 out of 5
Extension Builder in Colliers Wood
Torc Groundworks & build take a professional approach to all groundworks, including piling, foundations, underpinning, drainage, RC Works, Brickworks, Paving, driveways and Landscaping.
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Latest review:
Groundwork & Foundations- 9 Nov 2023
Very professional, finished the job to a great standard.
MM
Rating: 5 out of 5
Extension Builder in Colliers Wood
We are a highly experienced kitchen and bathroom design and installation company with over 20 years of proven expertise in delivering exceptional results. We provide a comprehensive, end-to-end service—from detailed consultation and bespoke design through to precise, high-quality installation—or a dedicated installation service tailored to your specific needs. Our work is defined by technical accuracy, refined craftsmanship, and a deep understanding of both aesthetics and functionality. We deliver bespoke kitchen and bathroom solutions across a full spectrum, from well-specified standard projects to luxury, high-end installations, all executed with exacting standards and attention to detail. Operating throughout London and the surrounding areas, we are committed to delivering a consistently high level of service, underpinned by expert guidance and industry knowledge. Every project is approached with a structured, client-focused process, ensuring clear communication, efficient delivery, and outstanding results. Regardless of the size or complexity of the project, we work in close partnership with our clients to accurately interpret their vision and requirements—translating them into expertly crafted spaces that meet the highest professional standards.
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Latest review:
We initially hired Michael to convert a bathroom into an office. After meeting him and discussing our longer-term plans, we quickly felt confident moving forward with him on much wider renovation works across the property. Michael worked closely with us throughout the entire process—from early ideas and structural planning through to execution. He consistently provided insightful, practical advice that added real value. His ability to anticipate issues early not only prevented problems but also helped us save money by refining the plans to maximise our goals and avoid unnecessary costs. Michael’s broad knowledge and skill set were hugely beneficial on a project of this size and within a tight budget. He made the process far less stressful and, at times, genuinely enjoyable. He kept me informed and involved at every stage, which gave me a great deal of confidence in both the quality of the work and the decisions being made throughout. Michael helped us renovate every corner of our four-bedroom maisonette in West London—from bathrooms and structural opening-up works to a full kitchen renovation, hard landscaping, flooring, and carpentry. The list goes on. His wide skill set and depth of knowledge were truly impressive and exactly what we needed, particularly as we chose to stay closely involved in the renovation rather than hiring a larger construction and project management company. We genuinely don’t feel we could have made a better choice. It’s not always easy to find a builder who is reliable, honest, and trustworthy, so I feel very fortunate to have worked with Michael. I would recommend him without hesitation and will absolutely continue to work with him on future projects, big or small.
Builders A2Z Limited
Rating: 5 out of 5
Extension Builder in Colliers Wood
We are a full-service construction company that specialises in helping homeowners refurbish, renovate and restore their properties, whether you’ve just moved in or have a lifetime of memories beneath your roof. We pay close attention to your requirements and ensure that the finished product is exactly what you were looking for. On time and on budget.
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Latest review:
I have been very happy with the work completed by Dragos and his team which included interior decoration and putting in a new bathroom. The work was done to a high standard, in a very professional manner. He had a plan and he stuck to it, working late when necessary, turning up on time and putting in a full day. I would have no hesitation in recommending Dragos and indeed intend to have him back to do further works in due course.
Built By Brick
Rating: 5 out of 5
Extension Builder in Colliers Wood
I am a Surrey based Builder with over 30 years experience. Working on smaller and larger projects, such as New builds ,Home renovations ,Extensions, Driveways, Brick-walls, Patios & fencing. I pride myself on being reliable, clean and tidy and customer satisfaction is key. I am open to giving ideas as to the best solution.
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Latest review:
Bricklaying- 19 Aug 2021
Garry was really good at giving us some advice. He was prompt in contacting us and communicated well throughout the process. His prices were very reasonable and he carried the work out promptly. The work was exactly what we wanted and we would highly recommend him.
One Take Solutions Ltd
Rating: 5 out of 5
Extension Builder in Colliers Wood
Experienced plumber and handyman. Happy to provide fixed price, guaranteed work for tenants and homeowners alike.
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Latest review:
Plumbing- 4 Aug 2018
Able to fit an outside tap for us quickly and finished to a high standard. Very professional and passionate about the job. Also took a look at another plumbing issue we had and gave us an honest reply on what our best options were.

4.3

Top rated Extension Builders

Our Extension Builders in Colliers Wood, are rated 4.3 out of 5 based on 22 reviews from customers like you.

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What types of services are offered by local extension builders in Colliers Wood?

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 Colliers Wood 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 Colliers Wood who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Colliers Wood?

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

Find extension builders in Colliers Wood with MyBuilder

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

Step 2: Compare different extension builders in Colliers Wood

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

Step 3: Hire Colliers Wood extension builders with confidence

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

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

What to ask a Colliers Wood extension builder before hiring?

Before hiring an extension builder in Colliers Wood or extension building company in Colliers Wood, 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 Colliers Wood?

An extension builder in Colliers Wood 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 Colliers Wood 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 Colliers Wood?

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 Colliers Wood 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 Colliers Wood 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 Colliers Wood

Can an extension builder in Colliers Wood help with planning permission?

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

Many Colliers Wood 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 Colliers Wood help with materials and finishes?

Yes, most extension builders in Colliers Wood 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.