Extension Builders in Farnham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (19 reviews)

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Some of our top rated extension builders in Farnham

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Sp construction
Rating: 5 out of 5
Extension Builder in Farnham
Builder all my life in all aspects honest and helpful as I can be to meet your needs or standards of work
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Latest review:
Plastering- 26 Feb 2026
Excellent, fast work, clean and would recommend.
ConstrucTek LTD
Rating: 5 out of 5
Extension Builder in Farnham
We undertake all building work Extensions, Porcelain and Stone Patios, Loft Conversions to New Build Houses. We will visit your site and give you a fully itemised no obligation quotation. All our work is fully guaranteed and Insured. We are members of the Federation of Master Builders and also the government backed Trustmark Scheme. Look at our feedback. All feedback is for extensions which we primarily specialise in.
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Latest review:
Extensions- 30 Jan 2020
We cannot thank Danny and Constructek enough for our beautiful extension. From his first visit to look at the project and quote through to the last this week to complete Danny and his team have been amazing. All of the trades people were so friendly and accommodating. Danny handled all of the tradespeople and deliveries for us, making the whole process such a job. The standard of his work is beyond exceptional and it is clear why he is a Master Builder. Nothing is too much trouble and Danny accommodated our every request. He and his team made our project a joy to have built. We really cannot recommend his company enough. We would be more than happy for any of his potential customers to come to our home and see the exceptional work they have done. We are over the moon with our finished project and will be using Danny and Constructek again. Thank you so very much more making our dream a reality.
Carma construction
Rating: 5 out of 5
Extension Builder in Farnham
Carma Construction, always giving 100% Between we have a combined experience of over 25 years. A strong work ethic alongside high quality workmanship is what we pride ourselves on. No job is too big or small
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Latest review:
Bricklaying- 30 Dec 2020
Fantastic job, really great guys to work with. I have no hesitation in recommending them.
MPE Brickwork and Construction Ltd
Rating: 4.9 out of 5
Extension Builder in Farnham
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.
J n g construction
Rating: 5 out of 5
Extension Builder in Farnham
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
Prodigy Landscapes
Rating: 5 out of 5
Extension Builder in Farnham
We are Hampshire/surrey based landscaping professionals with over 10 years experience. We cover all aspects of landscaping. We pride ourselves with high standard work at a competitive price. No job is too big or too small. Fully insured and qualified.
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Latest review:
Landscaping- 28 Aug 2024
Cairo and the team completed the job, I'm happy with the results. Thanks.
Weplumbheat
Rating: 5 out of 5
Extension Builder in Farnham
We are local and independent family-run business with many years of experience in plumbing and heating and complete house refurbishment and renovations. So, whether you need to replace a dripping tap or a leaking pipe, kitchen appliance installations or a complete house refurbishment, we can help. We specialise in managing the whole project. Our engineers are highly trained and fully qualified. They are Gas Safe Certified. No jobs too small or too big and we take pride in our work.
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Latest review:
Bathroom Fitting- 25 Mar 2026
Sujit and his team are experienced & professional. Work was completed to a high standard, and was very tidy & clean. Polite, respectful and accommodating. Sujit gave good advice and was supportive in the choices/suggestions that I made. I am extremely happy with my bathroom & have had numerous compliments. Highly recommended
Dr Wall Ltd
Rating: 5 out of 5
Extension Builder in Farnham
we have 15 years of experience we do everything related to walls inside and outside the house If you are looking for a solid company, please contact us, we always perform work to a high standard, we protect floors, windows and other objects from getting dirty, and we leave everything tidy behind us.
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Latest review:
Plastering- 27 Jun 2025
Fabian and Lucas, did an amazing job plastering a large space and completed quickly and left no mess. Highly recommend.
Mushroom Building Services
Rating: 5 out of 5
Extension Builder in Farnham
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.
K7 Renovations
Rating: 5 out of 5
Extension Builder in Farnham
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.
The Tiger Rock Project
Rating: 5 out of 5
Extension Builder in Farnham
A Father and son company who have joined together to provide an combined service approach, with over 20 years of experience in General Building services Services include: Handy Man jobs. General building Brick Laying Plumbing Plastering Rendering Painting & Decorating Landscaping/Gardening Kitchen fitting Bathroom fitting White Goods Repairs We can provide Risk Assessments and Method statements for larger jobs and also fully insured to cover working at height and working with plant.
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Latest review:
Plastering- 22 Jan 2021
Excellent person to use.job completed on time, with care and attention to detail to all aspects ts of the job. Would highly recommend this person to anyone wishing to use him and he was extremely well priced.
N L Crabbe Ltd
Rating: 5 out of 5
Extension Builder in Farnham
We are a family company with over 35 years of experience, undertaking all aspects of building work to include extensions refurbishment and all aspect of hard landscaping.
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Latest review:
Ground floor garage conversion into a spare bedroom/office with separate utility room. Fantastic workmanship, well insulated, lots of tricky ceiling levels that required boxing in and plastering, very neat job. Extremely professional at all times and very reliable, with excellent communication skills. Would highly recommend.
J H Brickwork
Rating: 5 out of 5
Extension Builder in Farnham
I am lead trades person for J H Brickwork. I have been in the industry for 20 years and worked independently for 2 years successfully. I have joined my builder to build my client base over a larger area in Surrey. We specialise in all aspects of Brickwork including hard landscape, patios, extentions and more. My team work together and have great communication with clients to achieve outstanding results. We offer competitive, affordable prices and strive to be the best around.
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Latest review:
Repointing- 27 Jun 2022
I'm very happy with John's work. He did an excellent job of repointing multiple areas of the external walls of my house, he was tidy and conscientious, and gave me an accurate quote in advance based on an on-site visit. Also priced fairly, and was efficient too. Highly recommended.
Onyx Design and Build
Rating: 5 out of 5
Extension Builder in Farnham
At Onyx we aim to deliver not only the highest quality but also, a great customer service experience that aims to cater for client’s needs on an individual basis. A non-exhaustive list of services currently undertaken by us include the following: · New Build Property · Property Extensions · Property Refurbishments · General Home Improvements · Office FitOut/Refurbishment/construction of new extensions, landscaping etc.
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Latest review:
Handyman- 27 Jul 2020
Tobias was really good. Did the job very quickly quicker than expected. He was very professional and polite. Really recommend.
onyx groundworks & landscaping LTD
Rating: 5 out of 5
Extension Builder in Farnham
Onyx Contractors is a well-established building company, operating in Surrey and Hampshire. We specialise in home extensions, Groundworks and hard landscaping. We work closely with architects to deliver high end projects in the most cost-efficient way. We have a highly skilled team of builders with a combined experience and knowledge of over 50 years in all sectors of the building trade.
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Latest review:
Really good service, very happy with the job. Highly recommend
BCB Building Services
Rating: 5 out of 5
Extension Builder in Farnham
The team has over 35 years in the building trade constructing extensions fitting kitchens, bathrooms, conservatory’s. For the past year and a half the carpenters and the painting division Have been working alongside the goodwood estate repair and maintenance team for the Duke of Richmond to restore 18th century buildings back to there form of glory.
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Latest review:
Based on my experience I have no hesitation recommending BCB Building Services who came recommended to me prior to this work by word of mouth. I needed to carry out modest renovation and remediation works on a newly purchased period property requiring many trades; general builder, scaffolder, plumber, plasterer, roofer, landscaper and damp specialist, etc. Brad and BCB team promptly provided a quote and, essential for me, agreed to source and project manage the diverse trades required to complete the work. They are busy but worth the patience and short wait necessary to get the work done by them. The workforce were professional, tidy, courteous and organised minimising disruption during the works and leaving the house clean and undamaged in their wake. The works were delivered per schedule and to a high standard and whilst not the cheapest, the pricing is fair and I believe the outcome represents tremendous value. Brad and the team remained pro-active beyond works completion and engaged actively in addressing the small amount of trivial snagging. They are now my go to for building works.

4.4

Top rated Extension Builders

Our Extension Builders in Farnham, are rated 4.4 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 Farnham?

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

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

What are the hourly rates of extension builders in Farnham?

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

Find extension builders in Farnham with MyBuilder

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

Step 2: Compare different extension builders in Farnham

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

Step 3: Hire Farnham extension builders with confidence

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

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

What to ask a Farnham extension builder before hiring?

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

An extension builder in Farnham 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 Farnham 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 Farnham?

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 Farnham 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 Farnham 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 Farnham

Can an extension builder in Farnham help with planning permission?

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

Many Farnham 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 Farnham help with materials and finishes?

Yes, most extension builders in Farnham 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.