Extension Builders in Guildford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in Guildford

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Stonehaven Building and Landscapes
Rating: 5 out of 5
Extension Builder in Guildford
Hi we are a family run business with over 30 + years experience in the trade. Work normally carried out driveways patios brickwork/garden walls turfing fencing all general hard landscaping. We pride ourselves on providing our customers with a professional friendly service to the highest of standards. We at stonehaven building an landscapes are clean and tidy ,reliable,hard working, friendly, professional and easy to communicate with.
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Latest review:
Driveways (Paved & Loose)- 18 Jan 2026
Five stars for all the jobs they have done for me. I hired them for a new drive paving, garden patio and fence. I was especially impressed by Henry's customer mind base service. When I asked for something, he managed all the requests for me in friendly and good manner.
Mcc construction & development ltd
Rating: 5 out of 5
Extension Builder in Guildford
We are a family-run construction company with over 25 years of experience, proudly serving clients across Surrey, Hampshire, and the surrounding counties. Built on traditional values of craftsmanship, reliability, and personal service, we combine generations of trade knowledge with modern building techniques to deliver projects of the highest standard. Operating throughout the South East, we provide a complete, start-to-finish construction service, managing everything from initial groundwork to the final finishing touches with a trusted team of skilled tradespeople and specialist partners. Many regional contractors emphasise this multi-trade, coordinated approach to ensure projects run smoothly from concept to completion.
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Latest review:
Landscaping- 3 May 2026
Danny and his crew had incredible attention to detail. They discussed potential improvements and changes to scope throughout and were transparent on price. Really pleased with the end result, great team to work with.
MTN BUILDS LIMITED
No reviews yet
Extension Builder in Guildford
Trust in our more than 30 years of experience in the construction sector
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K7 Renovations
Rating: 5 out of 5
Extension Builder in Guildford
At K7 we pride ourselves on our attention to detail. We only use quality tradesman. Our aim is to give our clients the dream house they have been looking for. We at K7 we undertake extension, loft conversions, garage conversions,bathroom/ kitchen renovations and full house refurbishments.
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Latest review:
Kevin from K7 renovations has done 2 jobs for me in the last few years, the first being an annex in my garden, the second was a full extension with high vaulted ceilings. Both jobs ran smoothly from the time I handed him my architects drawings. The things that stood out for me were Kevin's knowledge and understanding of what I required, the timekeeping of everyone on site and last but not least the site was left tidy at the end of every day. I would highly recommend K7 to anyone. I would be happy to share photos of these projects with anyone.
Stag Hill Carpentry Ltd
No reviews yet
Extension Builder in Guildford
We are a family business, we undertake all aspects of carpentry, joinery and small building works. We have three carpenters/joiners and me the director another carpenter/joiner with heaps of experience. We normally build roofs, staircases, built in storage, bespoke joinery, front doors, sash windows, flooring and much more.
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DVK CONSTRUCTION LIMITED
Rating: 4.6 out of 5
Extension Builder in Guildford
Groundwork Contractors, Foundations, Dredging, Drainage, Excavation, Concreting, Site Clearance, Block Paving, Surveys, Domestic and Commercial Work
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Latest review:
Groundwork & Foundations- 8 Oct 2022
Valentin and his colleague both were very professional, they completed the job on time and cleaned the area after work.
Rosca Construction LTD
Rating: 5 out of 5
Extension Builder in Guildford
Hi my name is Constantin and I do building over 10 years my type of work is general building
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Latest review:
Extensions- 6 Sep 2022
Constantin was fab. Great communication and work. This was a tenanted house so he had to juggle arrangements with the tenants whilst communicating with me and sending pictures. I will be asking him to do more work soon.
Holwill Homes
No reviews yet
Extension Builder in Guildford
Holwill Homes is a property refurbishment/ renovation company offering many trades suitable for all needs. I completed my plumbing apprenticeship and progressed from there onto extensions and renovations of domestic properties. I have been in the plumbing industry for 8+ years gaining a lot of experience and liaising with clients.
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Shorey Installations
Rating: 5 out of 5
Extension Builder in Guildford
We cover all aspects of plumbing and heating as well as installing new bathrooms and kitchens. I also draw on my knowledge of the building industry to complete many aspects of general building/property maintenance.
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Latest review:
Bathroom Fitting- 20 Feb 2021
Very quick to start and finished to an excellent standard in less than 2 weeks. Pricing was fair and Sam was very personable
Calibre Contractors Ltd
No reviews yet
Extension Builder in Guildford
Welcome to Calibre Contractors Ltd Calibre contractors is a construction company based in Guildford taking on all projects in surrey and surrounding areas. covering all manners of work in the building trade from loft conversion, extensions, new builds and refurbishments. Why choose Calibre Contractors Ltd? 1. Expertise and Experience With many years in the construction industry we have perfected our craft and have prided ourselves on delving the highest quality at competitive prices to ensure our clients achieve their dream living space. From concept to completion, we handle every aspect of your project with precision and care 2. Quality You Can Trust Over the years we have worked on projects of all shapes and sizes with both simple ideas to much more diverse and complex plans. Here at calibre we have built many great relationships over the years with local councils, building control, architects and engineers to provide some of the most well built technical homes out there. 3.Timely Delivery We understand the importance of timelines in construction. Our efficient project management processes ensure that we deliver on time every time, without compromising on quality. All queries and tenders welcome.
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Mushroom Building Services
Rating: 5 out of 5
Extension Builder in Guildford
We are a small building company with over 30 years experience based in Farnham. We offer a full building service from start to finish. We complete all work to the highest standard, no exceptions. We’re fully insured and qualified.
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Latest review:
Conversions - General- 29 Sep 2022
The job - gutting our living room. Tearing down the ceiling, removing all old wallpaper and ripping up the floor in order to insulate and add lighting. While we were doing this, we decided to replace the main steel in the living room (which was oversize and impacted the floor height in the guest room) and do remedial works in the guest room. The steel replacement was not time budgeted, but Oli and Tony didn’t hesitate to quote,To make time for us and bring in the structural engineer. Probably added 3 weeks to their time on site. The trades they brought in (plumbing for heating, electrician for downlighters, structural engineer and plasterers) were all professional, did an excellent job and were all unfailingly polite. It was easy to build a good, positive relationship with them, to the point we felt comfortable giving them the keys to the house so they could work while we went away for two weeks. They sent photos of their progress and showed up and worked as if we were there. I was very impressed by the state of the house when we got back. They watered our plants (I didn’t ask) and they cleaned the hallway so that it was spotless. They did a good job for a fair price, and were always cheerful and open to conversation. They came back to do a few snagging items without being chased (this is a huge thing for me, after having chased many builders to finish bits and pieces). I would definitely use them again.
Rmd Simply Bathrooms and Kitchens
Rating: 5 out of 5
Extension Builder in Guildford
Hello and welcome to Rmd Simply Bathrooms & Kitchens established since 1999. We specialise in refurbishments and undertake projects from a small kitchen or bathroom,to an extension or re-development. Our work comes from recommendation.
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Latest review:
RMD Replaced three bathrooms, cloak, en-suite and family. The work was planned so that disruption was kept to a minimum and we were give practical advice throughout as we made the detailed decisions during fitting. The work, including cabinet making, was excellent and carried out with an eye for detail. Alex has a 'belt and braces' approach so everything was fitted to last even if it required additional work and preparation. It was all done to budget too and the pricing was fair, open and honest. RMD proved to be great quality, trustworthy, a pleasure to work with and we wouldn't hesitate to recommend them.
Infinity Projects Group Ltd
Rating: 5 out of 5
Extension Builder in Guildford
Infinity Projects Group stands as a prestigious and award-winning construction consultancy, boasting a rich legacy of excellence in delivering top-tier Project Management, Construction Management, Design and Build, and Refurbishment Services since its establishment in 2016. As a privileged client of Infinity Projects Group, you are guaranteed a service that is meticulously tailored to meet the intricate demands and nuances of your project. All wall is certified, and coming with 1 year free of charge warranty. We don't cut the corners and our Plumber doesn't perform Electrical job ! Please look at our website . -Design and Build -Project Management -Principle contractor -New Build -Refurbishment -Loft Conversion -Garage conversion -Kitchen extension and refurbishment -Architecture drawings and permissions -Building control -Gas safe -Niciec Approved contractor
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Latest review:
Electrical- 8 Apr 2021
Val was responsive and prompt, and performed EICR as needed.
Craig
Rating: 5 out of 5
Extension Builder in Guildford
All Building work undertaken
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Latest review:
Fascias & Soffits- 27 Oct 2021
Craig was very professional Tidy worker and did an excellent job. Will be using him again for other jobs we have coming up. Came back very quick with the quote and getting the job done
ABD Builders and sons
No reviews yet
Extension Builder in Guildford
We are a family run construction company specialising in: Extensions New builds Loft conversions Renovations Landscaping Our area of speciality is ground works and brick work but we are experienced in all aspects of the trade. We have some highly skilled tradespeople that work for us, such as Carpenters, electricians, plumbers and plasterers. Even bespoke items can be made for just for you. We are based in Guildford and cover most of Surrey and out skirts of south London.
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Andy king
Rating: 5 out of 5
Extension Builder in Guildford
Edit Homes is a small Surrey based building company. We pride ourselves on a neat and tidy service, delivering any size project on time and on budget. Offering a transparent pricing policy for simplicity and control. I offer full analysis on all aspects for design and build services to complete all projects. Andy king (Edit homes ltd)
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Latest review:
Extensions- 26 Jun 2018
Andy and his team came to build my single story extension. Could not recommend him highly enough for his high quality work and finished product. Finished all the work to the time scale he told me and turned up everyday from start to finish. Always communicated with me to understand what was going on with each stage and went above and beyond to help me. Very clean and tidy. I still have lots of work to do with a garage conversion for one, and will not hesitate to use Andy again. Brilliant. 10/10

4.2

Top rated Extension Builders

Our Extension Builders in Guildford, are rated 4.2 out of 5 based on 20 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Guildford?

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

Find extension builders in Guildford with MyBuilder

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

Step 2: Compare different extension builders in Guildford

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

Step 3: Hire Guildford extension builders with confidence

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

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

What to ask a Guildford extension builder before hiring?

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

An extension builder in Guildford 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 Guildford 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 Guildford?

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 Guildford 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 Guildford 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 Guildford

Can an extension builder in Guildford help with planning permission?

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

Many Guildford 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 Guildford help with materials and finishes?

Yes, most extension builders in Guildford 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.