Extension builders in Cobham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (17 reviews)

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Some of our top rated extension builders in Cobham

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P&A Building&Decorating
Rating: 5 out of 5
Extension Builder in Cobham
We offer a wide range of building and decorating solutions such as: Kitchens Bathrooms Plastering Roofing Flooring Painting Decorating Plumbing Including CORGI Gas Safety Electrics Including And NICEIC Certificate Extensions Loft Conversions. Warranty All Works Fully Guaranteed
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Latest review:
Piotr ( Peter) has been trustworthy, reliable and very good value for money from the moment he started working on my flat. His work has been completed fast, with accuracy, and always leaving the surrounding area clean and tidy. I recommend him to my friends and am happy to give more references if required.
JH CARPENTRY
Rating: 5 out of 5
Extension Builder in Cobham
Hello, I’m James. A skilled carpenter with over 10 years of experience in first and second fix work. Based in Surrey, I have extensive experience working on a range of bespoke projects including kitchen fittings, doors, skirting, panelling, media walls, staircases, roofs, and stud work. I’m reliable, efficient, and take pride in delivering quality work.
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Latest review:
We have had a lot of tradesmen helping us work on our homes ,but he has been the best by far nothing is too much trouble ,turns up when he says and does a fantastic job ,he’s done a lot more work for us and we wouldn’t have a problem recommending him to anyone .
L.S Building and landscaping services
Rating: 5 out of 5
Extension Builder in Cobham
L.s Building and landscaping services can offer you a stress free job as we take care In every thing we do around your property. I have studied Bricklaying at college for 2 years. I have 16 years of experience in the building game . we under take extension’s, garden wall’s, repointing wall’s, slabbing ,exterior porcelain tileing patio and all outher types of landscaping. I take Pride in my work and have attention for detail.
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Latest review:
Fencing- 29 Jan 2019
Did job on time, as specified and to value of quote.
Amritpal singh
Rating: 4.5 out of 5
Extension Builder in Cobham
We are here to assist you and provide you the work you dreamt off on very reasonable prices so trust us with your house and we will do the best for you .please do understand that we have to pay to get contact details of customers so it’s important being a customer to check the portfolio before short listing a tradesman just to be sure that we won’t just be paying for nothing .
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Latest review:
Extensions- 4 Jan 2026
I hired Amrit based on positive reviews, but my experience was extremely poor. The work showed all the signs of a cowboy builder. I’m sharing this to help others avoid the stress, delays, and financial risk I went through. 1: No Respect for Contract or Deadlines Contract deadline was 15th September, which he completely missed. Despite delays, he demanded money almost daily. When I referred him to the payment and work schedule he signed, his response was: “I didn’t read it, I just signed it.” 2: Dangerous and Unprofessional Working Practices Brought in unqualified workers, many of whom could not speak basic English. He ignored safety standards throughout the project and wanted to use the same unqualified workers for gas work, which is extremely dangerous. When I objected, his response was: “Don’t worry, you will get a new house if it blows up as you have insurance.” 3: Work failed multiple building control inspections. He eventually refused to cooperate with the building inspector.
Onslow building and design
Rating: 5 out of 5
Extension Builder in Cobham
I own a building company 20 yrs of experience Total house renovations Extensions Steelworks and alterations Kitchens and bathrooms The whole package
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Latest review:
Extensions- 16 May 2022
Highly recommend Rob - he is keen, competitively priced, project manages and communicates well, and works efficiently and quickly to a high standard. He also has a good, reliable team of trades to support him. We would use him again without hesitation.
Sky luxury homes ltd
No reviews yet
Extension Builder in Cobham
I’m a Luxury property developer and contractor. We build affordable luxury homes, extensions, new builds, and we do conversions to a very high finish but affordable prices. We focus on attention to detail when it comes to building work. There are many builders out there, but very few with attention to detail and have an OCD for perfection.
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LJS construction
Rating: 5 out of 5
Extension Builder in Cobham
Extensions, lofts, kitchens, refurbishment, driveways and patios
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Latest review:
Landscaping- 6 Jun 2023
We are so happy with our new patio and garden. They were on time, very helpful and did a fantastic job, for a very competitive price. We will definitely use LJS for any future projects.
AVisha Builders
Rating: 5 out of 5
Extension Builder in Cobham
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!
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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...
Your Hubb Ltd
Rating: 5 out of 5
Extension Builder in Cobham
We provide building & electrical services to Clients in London and surrounding counties and pride ourselves in quality workmanship and a professional service putting our Clients at the heart of what we do. Before the start of the project everything is made clear so our Clients know exactly where they stand. Approved by the NICEIC, our Clients are covered by the six year guarantee. All of our work is fully insured and guaranteed. Referencing and site visits are available upon request.
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Latest review:
Electrical- 8 Jun 2020
Thank you for great work. Anthony was very helpful and professional. I would recommend him.
VMC Building & Construction Ltd
Rating: 5 out of 5
Extension Builder in Cobham
Experienced Bricklayer & Builder – Over 20 Years in Brickwork, Extensions & Loft Conversions With over 20 years of hands-on experience, I specialize in high-quality bricklaying, blockwork, and general carpentry. I take pride in delivering durable, precise craftsmanship tailored to each client’s needs. Recently, I successfully completed a major project building four large family homes, handling all brickwork and blockwork on site to exacting standards. I also have extensive experience in extensions and loft conversions, combining structural expertise with attention to detail. Whether it’s new builds, renovations, or structural work, I am committed to quality, reliability, and clear communication throughout every project. Feel free to get in touch for a free quote or to discuss your requirements!
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Luke Simmonds
Rating: 5 out of 5
Extension Builder in Cobham
🏠 Luke Simmonds Building Services 🔹 Home Extensions | Bricklaying | Landscaping 🔹 10 Years of Industry Experience 🔹 Transforming Homes in Surrey 📞 Contact us for your next project!
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Latest review:
Luke has done a great job of recently creating my new patio. He was very reliable with timings as well as keeping me informed at all times of what materials were required and the overall costing. He worked very hard and had some good workers with him. I would not hesitate in recommending him for any work.
BS
Rating: 4.8 out of 5
Extension Builder in Cobham
Our company specialises in the design and installation of custom and high-quality loft conversions and house extensions across London and the M25. While offering a personalised service, we bring the skills and experience required to ensure your loft conversion is completed to the highest standard and agreed timeline. Whether you are looking to add value to your property or create more space, our team will handle everything from planning permission to architectural design and construction
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Latest review:
Extensions- 31 Aug 2024
BS Loft Conversions are reliable, honest and operate with integrity. I recommend them to anyone who is looking for some building work whether they are big or small projects. They arrive on time, work hard and leave the site clean and tidy. Anxehlo always takes the time to answer any questions we may have and talks us through the process before providing us with all the options available from repair, replacement or re-instatement. As a novice to a huge development, it was difficult to find builders you can trust but, Anxhelo made that process easier, restoring our faith in construction work.
Quinn's Builder's
Rating: 4.7 out of 5
Extension Builder in Cobham
Hi my name is Chris my company is Quinn's Builder's. I have a motivated, reliable and friendly team that have over 20 years experience in the building industry. 100% great feed back from all my customers! We specialize in Full Refurbishments, extensions, patio's, kitchens/bathroom insulation , electrics, plumbing, roofing, flooring, decorating, window/door fitting, garden/fencing. We can carry out any job big or small. Contact us for a free quote.
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Latest review:
Restoration & Refurbishment- 8 Aug 2024
Chris completed the works at my house in June 2024, the works included: - removal of internal walls to make open plan downstairs - new kitchen - new WC - flooring - decorating - plumbing - electrics - bespoke joinery He was great to work this and completed the project to a very high standard. He attended site every day over a 4 week period and was committed to complete the job on time. I would recommend Chris and his team to others. Chris was even kind enough to install blinds, a media wall and build a wardrobe at no extra cost. Cheers!
Morris Carpentry & Construction ltd
Rating: 5 out of 5
Extension Builder in Cobham
Morris Carpentry & Construction are a family run business with over 40 years experience within the building industry. All our team are fully qualified in their own individual trades, which covers all aspects of building projects. We take the upmost pride and satisfaction in all of our work and treat your home like our own. We are more than happy to provide free estimates for any work you may require.
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Latest review:
From start to finish perfect, very good communicator, no hidden extras, very clean, can't knock him or the lads at all Many thanks Jack for a job egoless done Highly recommend
Happy Building London Ltd
Rating: 5 out of 5
Extension Builder in Cobham
Hello, We’re an architectural design and construction management company with a love of creative inspiration. We help turn dreams and visions into reality for people who aspire to live in exceptional contemporary spaces. Big ideas are our thing. Along with expertly costed build packages. Then there’s our end-to-end project management service, perfect for people who want to leave nothing to chance.
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Latest review:
Restoration & Refurbishment- 17 Jul 2016
Valter was very impressive on his initial visit with some exciting ideas for the house improvements and we had no hesitation in choosing Happy Building above the other two building firms who quoted. Having signed off on the budget and scope of work, Valter's team of builders arrived. We were hugely impressed with the skill, experience and work ethic of the team; the fact that they arrived early each morning smiling underlined the "Happy Building" epithet; Jarek, the site foreman, had an especially cheery demeanour. The work involved stripping the walls back to bricks, removing walls, reinforcing foundations, plastering, extending the bathroom and removing one bedroom to create a large ensuite bedroom. The latter certainly would not have been done without Valter's vision and patience in explaining how it would look. We were able to deviate from the original plans without any problem which was very important in achieving the final look which we had desired. Valter was very careful in sticking to time and budgets which I had never experienced before with builders. The kitchen, bathroom, two bedrooms, living room and hallways were finished to the highest possible specification within our budget. There were one or two small features which, with hindsight, we would have improved such as door handles and shower fittings, however this was down to us not specifying exactly what we wanted. These are very minor details and a tiny part of the overall picture.
Douglas carpentry and building
Rating: 4.9 out of 5
Extension Builder in Cobham
Douglas carpentry and building has over 10 years experience in all aspects of building work. We as a company have very high standards to accommodate all your building work needs from internal doors, skirting, architraves, built in wardrobes to all general building work. Hard working, dedicated, reliable, clean and tidy and here to give you a fair and honest quote. Please look at previous work on my Instagram page @douglascarpentry23
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Latest review:
Carpentry- 14 May 2026
Replaced a rotten external single door. The existing door frame was reused, as per request. This frame wasn't perfectly square which Alex had to compensate for. Alex arrived on time and completed the work without any unresolved issues, taking all offcuts and old door away for disposal.

4.5

Top rated Extension Builders

Our Extension Builders in Cobham, are rated 4.5 out of 5 based on 17 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Cobham?

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

Find extension builders in Cobham with MyBuilder

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

Step 2: Compare different extension builders in Cobham

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

Step 3: Hire Cobham extension builders with confidence

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

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

What to ask a Cobham extension builder before hiring?

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

An extension builder in Cobham 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 Cobham 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 Cobham?

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 Cobham 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 Cobham 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 Cobham

Can an extension builder in Cobham help with planning permission?

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

Many Cobham 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 Cobham help with materials and finishes?

Yes, most extension builders in Cobham 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.