Extension Builders in Cobham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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

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 Cobham

2168 Results

Sort by:

LJS construction
Rating: 5 out of 5
Extension Builder in Cobham
Extensions, lofts, kitchens, refurbishment, driveways and patios
Get in touch
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.
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.
Get in touch
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!
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...
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.
Get in touch
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!
Get in touch
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!
Get in touch
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
Get in touch
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.
Kisozi Contractors
Rating: 4.7 out of 5
Extension Builder in Cobham
With extensive experience in maintenance and handyman services, I currently work at Brunel University, delivering high-quality repairs and upkeep with precision. Prior to this, I successfully ran my own construction company back home for over seven years, managing large contracts and collaborating with professionals and contractors across various trades. My expertise includes carpentry, plumbing, electrical works, interior design, painting, and general property maintenance. I take pride in delivering reliable, high-quality workmanship with a keen eye for detail and customer satisfaction at the core of my services, whether it's a small repair or a full-scale refurbishment.
Get in touch
Latest review:
Handyman- 15 Apr 2026
Joe is incredibly diligent, polite and does a great job. Initially hired him to fix some drawers and help with a couple of small things but was so impressed have been using his services for other tasks, which he has done really well - staying incredibly late until the job was done, which I wouldn't normaly expect. He can be very busy but that is normal for someone who is very good at their job! Would definitely recommend. Also he is extremely tidy and a nice guy.
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.
Get in touch
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.
Get in touch
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
Get in touch
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.
Vision Construct Group ltd
Rating: 5 out of 5
Extension Builder in Cobham
Experienced builders, Vision Construct Limited specialise in all domestic developments Extensions, Lofts, Basements, New Build, Renovations. We have a number of years experience of working in the industry, we have done many different projects, New Build, Extensions, Loft Conversions,Basements. We take on projects of all sizes, from small renovation works to project managing your new extension.
Get in touch
Latest review:
Ivan and his team completed a full loft conversion at our terraced house, and we couldn’t recommend them more highly. They did a fantastic job from start to finish and were a pleasure to work with. Communication and project management throughout the project was excellent, and their commitment really showed. Nothing was ever too much trouble to ask. The project was completed within the estimated timeframe, which was especially appreciated as it finished just before Christmas. The team was very considerate while working in our home, and we stayed in the house for the entire duration of the project with minimal disruption. In addition to the loft conversion, they also replaced all our doors with fire doors and installed new flooring throughout the house, all to a very high standard. We’re absolutely delighted with the results and would highly recommend Ivan and his team to anyone considering similar work.
Dexacon Ltd
No reviews yet
Extension Builder in Cobham
We have over 25 years experience working in construction, covering all areas of the building. With a dedicated team for structural works we can do the majority of work in house. We are also bolstered by a number of incredibly efficient and highly skilled contractors to ensure all projects are completed on time and on budget
Get in touch
Shkelqim Hoxhaj
No reviews yet
Extension Builder in Cobham
Skilled and enthusiastic general labourer always strives for excellence in every task communicating with customers to ensure they’re getting the look they’re hoping for. Efficient in cleaning work areas,setting out project-specific tools, and lubricating equipment to aid workers. Expert in mixing,matching and applying paints, preparing painting surfaces by washing walls,repairing holes, or removing old paint.
Get in touch
H & H Maintenance
Rating: 5 out of 5
Extension Builder in Cobham
Hi I’m Paul . We provide various forms of service construction,renovation,alterations and extensions .Kitchen/bathroom . In house plumbing & electrical .Qualified electrician with (NAPIT ), part p domestic installer. E/v charging stations zappi installer. Electric under floor heating. Registered installer for GRP flat roofing . Roof lights designed and installed.We have connections for drawings,planning & building control to assist with any project . Our services are professional and assured
Get in touch
Latest review:
Conversions - General- 21 Nov 2020
Paul is very professional and we are happy with the work he completed. I would recommend his services.
Stones the Roofing Specialist
Rating: 5 out of 5
Extension Builder in Cobham
Hi, I am Matthew, the site director. We are committed to maintaining our 29 year exemplary reputation for having a reliable and sincere company that radiates professionalism. Both management and operatives are highly trained, qualified specialists allowing us to adapt to the modification and addition of advanced techniques. Stones provide a comprehensive range of ROOFING SERVICES, LOFT CONVERSIONS AND EXTENSIONS to our domestic and commercial clients at a vastly competitive rate.
Get in touch
Latest review:
Roofing (Pitched)- 12 Feb 2017
An excellent job received. Matthew put in a real shift during the day and the work was completed to an excellent standard. After several years and several builders our leaks seem to be repaired. Would highly recommend.

4.1

Top rated Extension Builders

Our Extension Builders in Cobham, are rated 4.1 out of 5 based on 18 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 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.