Extension Builders in Colnbrook

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

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Some of our top rated extension builders in Colnbrook

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Houseline Construction Ltd
Rating: 5 out of 5
Extension Builder in Colnbrook
Houseline construction Ltd is professional and reliable builders with top quality workmanship to our clients for their proposed extension projects. Our years of experience mean we work closely with clients to transform their living spaces to suit their tastes. Our suggestions are complimentary alongside any of our building projects, or available on request as a bespoke stand-alone option. Our projects are completed to a precise standard of excellence with peace of mind.
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Latest review:
We are happy with our double story extension by Houseline Construction LTD. They are very professional and efficient. They finished our job week before contracted time.
LJ construction
Rating: 5 out of 5
Extension Builder in Colnbrook
I run a small building firm, I'm a bricklayer by trade but do most things in the building trade I've been in the building game for 24years now so I'm very experienced at all types of building work
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Latest review:
Extensions- 30 Aug 2024
Great work by Luke and all his team. The work is to a really high standard and aesthetically pleasing. Luke's attention to detail is second to none. His brickwork is amazing. He listens to any questions or concerns and makes sure that he answers and resolves them. The finished product is way beyond what we had expected. The site was managed well and all members of the team were respectful and they worked well together. I would certainly recommend Luke for any building work you need doing as he makes sure that the job is done well and stress-free.
Delta Construction Limited UK
Rating: 5 out of 5
Extension Builder in Colnbrook
We are commited to our clients. We have experience in working with bespoke clientele and are very confident in our capabilities, expertise and delivery of final product as well as after care.
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Latest review:
Decking- 23 Apr 2025
I needed someone reliable and efficient. Artan responded quickly to messages, was very polite, hard working and cleaned the area after the job. Stress free experience for me which was fantastic. Would recommend and definitely hire again. Thank you so much Artan!
Brits construction ltd
Rating: 5 out of 5
Extension Builder in Colnbrook
Brits has vast knowledge & experience of residential projects and has built several Modern Loft conversions, Major Side & Rear Extensions and whole house Internal Refurbishments. We Offer; Project Management. Program of works. Regular Meetings with the client. Liaise with the local authorities. We execute Projects on time, within budget and with the highest quality. Best housekeeping and H&S Standards. Employees & Public Liability Insurances. Member of FMB, LABC, Trust Mark, NABC
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Latest review:
Extensions- 21 Jul 2023
We had a loft conversion and a 9x3m rear extension constructed. We also had underfloor heating, flooring, a new staircase and air con installed. We are happy with the result and would recommend this company. They have also respected warranty and fixed issues that have come up after construction and decorating work completed.
Np & co
Rating: 4.9 out of 5
Extension Builder in Colnbrook
We are Np & co builders LTD, a professional construction business based in West London. We undertake all types of building work and specialise in loft conversions, all types of extensions, fencing, driveways, bathrooms and much more. Our builders have over 10 years of experience within this field of work and always aim to provide the best for our customers. We are extremely passionate about any work we provide and always retain high quality. We offer free quotations.
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Latest review:
Fencing- 16 May 2025
Amazing, Top Guys
Gurmeet contractors
No reviews yet
Extension Builder in Colnbrook
I started building trade in 2006. Ever since, i have improved and learned new skills and techniques in order to keep my customers happy. I have experience in all building aspects and imprinted driveways and patios. I am more than happy to share my work portfolio with you and also i could provide references.
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2U BUILDING
No reviews yet
Extension Builder in Colnbrook
Loft, Extension, Refurbishment
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Virk
No reviews yet
Extension Builder in Colnbrook
We doing all building work on reasonable price
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FIND PROPERTY LIMITED
No reviews yet
Extension Builder in Colnbrook
FIND PROPERTY LIMITED company that you can rely on OUR SERVICES like Building, construction, Maintenance, Repairs and Renovation/Remodelling jobs. With over 10 years of experience, we pride ourselves on providing a professional, reliable, quality service to all customers – no matter how small the job being carried out. A vastly experienced team of professional tradesmen, our focus is always on fulfilling your requirements with minimum fuss and maximum satisfaction.
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K.M Home Construction
Rating: 5 out of 5
Extension Builder in Colnbrook
Our company deals with construction and renovation. We are professional. We ensure a high standard of our work, we keep the agreed deadlines.
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Latest review:
Bathroom Fitting- 11 Oct 2023
He was very professional and has completed the work as desired.
SATH HOUSING
No reviews yet
Extension Builder in Colnbrook
Being an professional civil engineer, I can provide building extension services under basic prices.
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Sher group of builders Ltd
No reviews yet
Extension Builder in Colnbrook
Hi everyone, Please get in touch for reasonable quotation : ( SHER GROUP OF BUILDERS LTD) Company no : 12538248 Based in Hayes (west London) Loft conversion, extension, new build home, Complete home renovation,bathroom,kitchen Electrical,plumbing, All building work undertaken
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LeveLine General Builders
Rating: 5 out of 5
Extension Builder in Colnbrook
LeveLine General Builders has grown steadily over recent years. We pride ourselves on customer service and attention to detail. We offer a full architectural and design service to ensure we deliver quality construction projects from start to finish, keeping the customer fully informed at all stages.
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Latest review:
Bricklaying- 27 Feb 2021
Andrew was prompt, efficient and produced high quality work. From the start, he made us feel comfortable we had given the job to the right person. I am extremely pleased we chose to use Andy and I will definitely recommend his services and use again should the need arise. Thank you very much for an outstanding job and pleasant experience.
Adam Renovations Ltd
Rating: 5 out of 5
Extension Builder in Colnbrook
Adam Group Ltd is an established residential construction and development company, incorporated in 2010, specialising in high-quality refurbishments, extensions, loft conversions and new build projects across London and the South East. We work with homeowners, investors and local authorities on projects ranging from £150,000 to £3 million, covering everything from full house refurbishments and structural reconfigurations to large-scale extensions, loft conversions and ground-up developments. Since inception, we have successfully delivered over 250 projects, building a strong track record for reliability, quality and consistent delivery. In 2025 alone, the company achieved a turnover of £4.5 million, reflecting both our capacity and the level of projects we undertake. Our team provides an end-to-end service, including planning coordination, structural works and full construction delivery. We are experienced in working alongside architects, engineers and local authorities to ensure projects run smoothly and comply with all regulatory requirements. We maintain a 4.9-star rating on Google, with the majority of our work coming from repeat clients and referrals — a testament to our professional approach, clear communication and attention to detail. If you are planning a refurbishment, extension or new build and want a contractor with a proven track record and the capability to deliver complex residential projects, we would be happy to discuss your requirements.
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Latest review:
Loft Conversion- 5 May 2017
Artjom and his team have done a wonerful job on our loft conversion and house renovation. We are very pleased at the transformation. Although not the cheapest quote we obtained, they were highly professional, kept the noise down and cleaned up after themselves. We also added several other jobs to our initial quote and they undertook these as requested. It is important to keep a record of everything you ask to be done. They worked very fast and were able to complete everything within 2 months - it helped that our house was empty at the time, so they didn't have to deal with us living there at the same time as the works were being carried out. Overall, I would highly recommend Adam Renovations for any building works you need done to your property.
First Division Builders Ltd
Rating: 5 out of 5
Extension Builder in Colnbrook
For the past 10 years i worked as a foreman for a large company, contracted to the Portman Estate in London, I have been responsible for leading a team of 20 ,whilst being committed to completing to a high standard, and running to time. I've mainly specialised in refurbishment and restoration work, but have a broad spectrum of knowledge and skills also. I believe in giving a fair quote and delivering a quality service.
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Latest review:
Conversions - General- 17 Jul 2017
Great comms and reliable. Good timing and happy to work with me to come up with solutions to snags I had caused. Would and have used Saimir again. Highly recommended.
Surrey Build and Maintain
Rating: 5 out of 5
Extension Builder in Colnbrook
Surrey Build is a newly formed business that focuses its efforts on residential dwellings. Wheather you are looking to extend upwards or outwards, or refurb we, at Surrey Build have it covered. We pride ourselves on maximising clients budgets to their full potential whilst providing an uncompromising service.
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Latest review:
Extensions- 1 Jun 2020
We choose Surrey Build & Maintain because we felt like Dan and the team really listened to our vision for the extension and shared the desire to produce something that would be an amazing improvement to our house. As with any build, there were many hurdles to overcome. Dan and the team were always there on hand to deal with challenges and overcome them in a professional and experienced fashion. We really felt that Dan was on our side and was able to find numerous ways to improve the project as well as saving money by assisting to redesign the structural plans as they were unnecessarily overzealous. The team was punctual and hard-working, often working on weekends to increase the rate of construction. We stayed at the house during the build and Dan made every effort to make the impact on us as minimal as possible, laying dust sheets, cleaning up each day and keeping a temporary kitchen available to us during the project. We took advice on key features like doors and windows from Dan during the build and absolutely loved his design input. The end result is fantastic and we barely use any other room in the house! Since Dan began the kitchen extension we have also employed Surrey Build to overhaul our bathroom as well. Highly recommended!

4.2

Top rated Extension Builders

Our Extension Builders in Colnbrook, are rated 4.2 out of 5 based on 19 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Colnbrook?

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

Find extension builders in Colnbrook with MyBuilder

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

Step 2: Compare different extension builders in Colnbrook

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

Step 3: Hire Colnbrook extension builders with confidence

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

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

What to ask a Colnbrook extension builder before hiring?

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

An extension builder in Colnbrook 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 Colnbrook 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 Colnbrook?

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 Colnbrook 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 Colnbrook 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 Colnbrook

Can an extension builder in Colnbrook help with planning permission?

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

Many Colnbrook 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 Colnbrook help with materials and finishes?

Yes, most extension builders in Colnbrook 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.