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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PJC Building Contractors
Rating: 5 out of 5
Extension Builder in Guildford
We are a Surrey-based building company undertaking all aspects of construction and landscaping. Our business is built on high standards of workmanship, honesty, and reliability. We take pride in delivering every project to a high standard, ensuring customer satisfaction from start to finish.
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Latest review:
Landscaping- 25 Feb 2021
Peter and his team did a good job but the weather did not help them. However the final product is looking good and my neighbours agree. i shall be employing Peter again soon to repair some other parts of our property .
Avbase Building Services
Rating: 5 out of 5
Extension Builder in Guildford
Avbase Building Services is an award-winning family business with over 24 years' experience in the building trade. We operate in and around Surrey, Sussex, London, and areas within the M25 circular. We cover all aspects of building to include extensions , complete house renovations, kitchen and bathroom fitting, open-plan living areas, garage conversions from start to finish, including wall knock-through, steel work, brick work, electrical work, tiling, plumbing, plastering, carpentry, and decorating. With a team of highly skilled builders and building trade specialists, our expert knowledge and project management skills, we ensure that all our clients receive an excellent level of service during their journey to the perfect home of their dreams. Nick
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Latest review:
Restoration & Refurbishment- 2 Oct 2024
Nick and team are a great outfit, they are professional and believe in doing a job properly. We had a new bathroom, kitchen tiling and a wall knocked through, all standards were high and they navigated a few surprises from existing problems well. Will definitely look to use again in future.
Ruxway Ltd
No reviews yet
Extension Builder in Guildford
We build local, residential and commercial projects for Private Clients and Businesses. As the General Contractor, we will deliver your project; Project Management Construction of residential and commercial projects Renovations & Refurbishment listed building projects Construction Troubleshooting & Project Rescue We will carry out and manage all types of works; Kitchens Bathrooms Extensions Carpentry Decorating Building Services External Works General Building Works
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J n g construction
Rating: 5 out of 5
Extension Builder in Guildford
Hi I’m Jamie I’ve been working along side my dad now for 10 years and we do extensions loft conversions and alterations. I have picked up carpentry along side my brick laying and also roofing from cutting the roof to tilling it as well as flat roofing.
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Latest review:
Bricklaying- 2 Dec 2024
Very pleased with the work and fair cost as well
DJ Complete Building Services Ltd
Rating: 4.9 out of 5
Extension Builder in Guildford
We are a local, professional building company with years of experience in all aspects in the building industry. Design, planning, project management.Specializing in extensions,loft conversions and high quality refurbishments. we have an architect that deals with all kinds of designs and we deal with building control from the start of your project to finish.
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Latest review:
Extensions- 2 Jul 2017
I can't recommend Damian enough, from the very first engagement he was extremely knowledgeable and reassuring, very attentive to the requirements and armed with great ideas and suggestions. Damian provided a detailed quote very quickly and also followed up immediately to queries and clarifications. Damian is an excellent and highly experienced all-round builder who can pretty much undertake anything in the building trade and finish it to a very high standard. The job he did for me was the addition of a side extension which had a bedroom with a Velux skylight and a shower room, a full house refurbishment, relocation of the family bathroom, and improvement of the rear garden and front driveway. Damian totally stuck to his budget except for the areas where I changed the specification and asked for extra work or costlier items, or where unexpected items came up like woodworm infestation after the old flooring was lifted. Even with these additional items, Damian's pricing was extremely competitive and pretty much at the cost of the materials or parts required. Damian was completely reliable and his team worked at least 6 days a week, sometimes 7 days, from 8 in the morning or earlier! He was always available and responsive to queries throughout, always taking the time to talk or respond to e-mails and SMS messages, always checking to ensure things were right and that I was happy with the work and progress. In summary, I would not hesitate to recommend him and would use him again.
Castles and Gardens
Rating: 5 out of 5
Extension Builder in Guildford
Thank you for reading my profile. If you are looking for a reliable individual to take on your project please get in touch.
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Latest review:
Luca dug out our pool, levelled our garden and returfed it. Luca’s workmanship was outstanding. He clearly takes pride in the quality of his work. He has been professional at all times and extremely helpful. if you have difficult neighbours and have work done by Luca, don’t worry. He is very considerate and has ensured that the work did not disturb our neighbours too mich.
MPE Brickwork and Construction Ltd
Rating: 4.9 out of 5
Extension Builder in Guildford
MPE Brickwork & Construction Ltd is a small, family‑run construction company with a reputation for quality workmanship, reliability, and a personal approach to every project. With years of hands‑on experience, we specialise in building home extensions, new build garages and conversions, brick outbuildings, carrying out structural alterations, and installing RSJs to create open‑plan living spaces safely and efficiently. Our team is skilled in all aspects of brickwork ensuring every finish is completed to a high standard. As a family business, we take pride in offering honest advice, clear communication, and a friendly, dependable service from start to finish. Whether you’re expanding your home, removing load‑bearing walls, or undertaking general building works, we deliver practical solutions tailored to your property and your vision.
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Latest review:
Bricklaying- 20 Aug 2025
Michael was hired to build a set of tiered retaining walls and steps in my garden. He was a pleasure to deal with whilst costing the job, gave a fair price and provided a detailed quote. In terms of getting the job done, Michael and Conor were superb. They were there when expected, they went above and beyond on multiple occasions when issues were discovered (not with their work), and at no point did they take the easy route. Rather, the attention to detail and consideration they put into how I wanted everything was exceptional and the communication throughout was faultless. I would confidently recommend MPE to anyone and will certainly be using their services again myself. The final bill was also exactly as quoted, and the standard of work was spot on. All round excellent.
KG Carpentry
Rating: 5 out of 5
Extension Builder in Guildford
Reliable company taking on all aspects of Carpentry and joinery from roofs to doors. 14 years experience which was passed down thought our family business. Working to a high standard and providing a quality finish.
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Latest review:
Carpentry- 21 Dec 2018
Kyle did an excellent job and was really helpful, offering to work late at short notice as I needed the job done urgently. He even picked up the materials for me on his way. He made good all the holes left by the removed locks to a high standard. My decorator who then painted the doors commented that it was a great job. I wouldn't hesitate to use Kyle again or recommend him to others.
Gallagher brickwork and building services Ltd
No reviews yet
Extension Builder in Guildford
We are a professional building and bricklaying business, we have over 40 years experience.we can build anything from a small wall to a large extension, new build house.
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Bicaku construction limited
Rating: 5 out of 5
Extension Builder in Guildford
Hi my name it's andi: I bean as a general builder for over 6 years I bean working for big company and finally I'm starting my one . I like to give a good service and a good finish on every single job like it is my one house .
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Latest review:
Painting & Decorating- 4 May 2021
On visiting to quote Andi impressed us with his professionalism so he was awarded the job over two other applicants. The job was completed on time and to an agreed specification. He was not the least expensive quote but we are happy that we chose him. If I had any further work I would happily employ him again.
Prestige Solutions Surrey LTD
No reviews yet
Extension Builder in Guildford
Construction Services In Surrey. New Builds, Refurbishments, Expansions to Loft Conversions in Guildford and surrounding areas. At Prestige, we deliver exceptional construction services across Surrey and the surrounding areas. Whether you're planning a stunning new build, a stylish house extension, or a bespoke loft conversion, our expert team brings craftsmanship, reliability, and vision to every project. Based locally, we understand the architectural character and regulations of Surrey towns like Guildford, Woking, Epsom, and Walton-on-Thames. We help homeowners and developers bring their ideas to life on time, on budget, and to the highest standards.
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JRS Carpentry and Construction
Rating: 5 out of 5
Extension Builder in Guildford
Hi, I'd like to welcome you to JRS Carpentry And Construction. AS a company we always want the client to be happy with work quoted for and works completed. No job is too small and we are always happy to help with advise. We pride ourselves with nothing less than a high quality finish in every job we do.
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Latest review:
Carpentry- 5 May 2018
james arrived on time on the agreed date . did an excellent job ! very happy indeed with James - would ask him to work for me again anytime. . very neat and tidy. nice guy too ...
Thomas Jackson Carpentry & Construction
No reviews yet
Extension Builder in Guildford
I'm a local carpenter/general builder that has been working in the industry for over a decade now. I'm polite, clean and tidy with a high regard for top end finishing.
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Ennis 1st fix carpentry
No reviews yet
Extension Builder in Guildford
Ennis carpentry is a father and son run little buisness with over 35 years of experience and offer 1st fix carpentry and small extenstion services.
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Dema Home Improvements Ltd
Rating: 5 out of 5
Extension Builder in Guildford
Dema Home Improvements provides an array of top-quality home improvement services, including professional painting and decorating, tiling, flooring and complete home refurbishments. Working throughout Hampshire, Surrey and the surrounding areas, we have been delivering exceptional results for domestic and commercial clients for more than 8 years.
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Latest review:
Painting & Decorating- 24 Jan 2026
I ve asked for more than painting and I am satisfied with the job. Totally recommend Dema Home Improvements.
C.jbuilders
Rating: 4.8 out of 5
Extension Builder in Guildford
Hello, my name is Chris and I run C.J Builders. I am a carpenter & joiner by trade since leaving school. Working with wood is my specialty. Within my time of being in the building trade I have learnt many more aspects of building works, these include groundworks, brickwork, landscaping & fencing, bathroom & kitchen fitting, painting & decorating and lots more. You can see from the pictures of my work below that I can turn my hand to most things.
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Latest review:
Restoration & Refurbishment- 20 Jan 2026
Hired chris curran to fit new kitchen for pay him £2000 depisit One day remove our old kitchen & hang 8 spotlight from kitchen left me middle off mess and disappeared now no answering phone no showing up need to go and find him stay away from him

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.