Extension Builders in Horley

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (14 reviews)

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

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 Horley

1368 Results

Sort by:

Karan construction
Rating: 5 out of 5
Extension Builder in Horley
All construction work undertaken contact for any interior or exterior work
Get in touch
Latest review:
Hard Flooring- 21 Aug 2025
Karan is absolutely brilliant,so polite,he laid my new laminated floor and done an amazing job I would highly recommend
SGB Water Engineering
Rating: 5 out of 5
Extension Builder in Horley
SGB maintain an interactive IT process, to ease transparency and movement of information data, to all parties involved in any one project. We have a combined 25 years professional experience in the civil engineering / construction management. We are experts in water utilities management enabling us to offer a variety of services and solutions in this area.
Get in touch
Latest review:
Plumbing- 9 Dec 2020
Work completed and problem has been resolved .
PLANNING APP LTD
Rating: 5 out of 5
Extension Builder in Horley
We create architectural drawings. We are specialised in applications for planning permission and building regulations and co-operate with local structural engineers for structural calculations, party wall surveyors and building companies. Our projects include extensions, lofts, garages, house&flat conversions in different councils all around London. If you are thinking of extending, converting, or splitting your property do not hesitate to contact us for a free first consultation & quotation.
Get in touch
Latest review:
CAD / Drawings- 23 Sep 2020
Marius has been doing a great job and put in an extra effort to ensure we were happy with the outcome. I can not recommend Marius highly enough, especially as he managed to fix an issue with the council that we had from someone else drawings. He was patient and very well prepared. Went an extra mile and gave us different ideas/options. He was flexible with timings and most importantly with price. Had by far the best quote and did an exceptional job.
JRS Builders Ltd
No reviews yet
Extension Builder in Horley
JRS Builders Company is a premier construction company that has been providing top-quality construction services for over a decade. With a team of highly skilled and experienced professionals, we are dedicated to delivering exceptional craftsmanship and outstanding customer service to our clients. Our commitment to excellence has earned us a reputation as a trusted and reliable partner in the construction industry. Whether it's a new home construction, renovation, loft coversion, extension, driveway & patio, bathroom & kitchen refurbishment or remodeling project, our team has the expertise and resources to bring your vision to life. Contact us today to learn more about our services and how we can help you with your next project.
Get in touch
LArchitects
No reviews yet
Extension Builder in Horley
At LArchitects, we are passionate about creating innovative and sustainable architectural solutions tailored to our clients' needs. With more than 10 years of experience in the industry, our team of skilled architects and project managers is dedicated to delivering personalized service from concept to completion, with services ranging from concept design to construction, including expertise in planning, design development, and construction administration.
Get in touch
Wilfred Brown
No reviews yet
Extension Builder in Horley
I have over 25 years of hands‑on experience in the construction industry, working across plastering, carpentry, flooring, kitchen fitting, block laying, and basic electrical and plumbing work. I’ve worked on full property renovations as well as residential and commercial projects, giving me a strong understanding of how to manage and complete jobs to a high standard. I’m based in London and can travel to surrounding areas for work. I’m known for my reliability, strong work ethic, and ability to deliver quality results across multiple trades.
Get in touch
Express Moves
No reviews yet
Extension Builder in Horley
All building work from loft conversions to basements. Internal restructuring, kitchens and bathrooms. Any job small or big undertaken. Approved building control work. We welcome any jobs you have and are happy to quote or advise free of charge. Honest and straightforward ethics. Very competitive rates.
Get in touch
Mark Hewett
New on MyBuilder
Extension Builder in Horley
Brickwork garden walls reporting new builds and extension extensions
Get in touch
AKAM BUILDERS LIMITED
Rating: 5 out of 5
Extension Builder in Horley
Akam Builders have over ten years experience in providing cost effective solutions for domestic & commercial building requirements be it simply refreshing an old bathroom to building a nursing home. We have a hard working team ready to help you transform your house into your dream home.
Get in touch
Latest review:
I had a commercial property converted into 2 one bedroom flats. Akam builders did an A-class job. The work was done to a very high standard and within the time scale stated by Gurwinder. I was impressed by the extra work he did without any extra charge. This builder is a genuine and reliable builder. The work is in perfect condition after 6 months.
Ava Constructions & Decors
Rating: 4.9 out of 5
Extension Builder in Horley
Ava Constructions & Decors Ltd is a UK-based construction and renovation company committed to delivering top-quality craftsmanship and reliable project management. We specialise in full refurbishments, extensions, bathroom and kitchen installations, and commercial fit-outs — always tailored to the client’s vision and delivered to the highest UK building standards. With a keen focus on transparency, timelines, and customer satisfaction, Ava Constructions has earned the trust of homeowners, investors, and developers alike. Punctuality and completion of work on time are a priority .Our team always respect the client wishes and work with them to achieve the best possible results to their satisfaction. Thank you in advance
Get in touch
Latest review:
Extensions- 16 Apr 2026
I would not recommend this builder based on my experience. Instead of using crushed concrete they used soil to fill the house flooring for underfloor heating. 1 The project suffered from poor communication, repeated delays, and a lack of clarity around responsibilities. There were serious issues with the foundation works, which failed Building Control inspection and now require remedial engineering input before works can proceed. The site was also left incomplete and not in an acceptable condition. Despite substantial payments being made, key documentation, technical responses, and follow-through were lacking, leaving me to resolve major compliance and structural issues independently. My experience has resulted in delay, additional cost, and considerable stress. I would strongly advise others to ensure there is a detailed written contract, clear scope of works, and defined accountability
Belvedere Electrical Ltd
Rating: 5 out of 5
Extension Builder in Horley
Belvedere Electrical Ltd is my new business, after working employed for many years. I have now decided to complete works for myself to the highest of standard, with customer satisfaction being my top priority.
Get in touch
Latest review:
Electrical- 26 Mar 2023
Very efficient and clean work
PJL carpentry and building
No reviews yet
Extension Builder in Horley
A family run business that provides all aspects of carpentry and building services provided around Surrey and surrounding areas
Get in touch
Jd construction services London ltd
Rating: 5 out of 5
Extension Builder in Horley
JD CONSTRUCTION SERVICES LONDON LTD offer a wide range of building services in London and surrounding areas. We are in the field from last ten years and our staff is highly skilled under the CITB CONSTRUCTION skilled.
Get in touch
Latest review:
Groundwork & Foundations- 29 Dec 2021
Jagmeet did a fantastic job. Listened to the brief. Was happy to change a few bits at my request and got the job done in record time between Xmas and new year. Would definitely use him again. Very reliable.
Maxcontractorsint.LTD
Rating: 5 out of 5
Extension Builder in Horley
At MaxContractors , we pride ourselves in providing our customers with quality construction services that are tailored to their needs. Our team is highly experienced in the industry and have a great deal of knowledge when it comes to building and renovation. We pay attention to detail and are always willing to go the extra mile to ensure that the job is done to the highest standard. Over the past many years our company has thrived within the domestic as well as commercial building industry. With vast amounts of staff specialising in all areas of the trade, our tradesmen/women boast skill and determination many could only wish of. Having completed thousands of projects, putting smiles on countless of faces we aim to deliver the highest of standards in all aspects of the works and services. Providing quality and great time management throughout each step of this journey. We stand strong beside our clients providing a helping hand so ideas become reality, all while with a peace of mind you kick back and watch your future grow. maxcontractorsint. com
Get in touch
Latest review:
We recently completed a first and second floor renovation alongside an 5x6m extension of our 1930s property with Maxcontractorsint.ltd , and we couldn’t be happier with the results. From start to finish, they have been absolutely fantastic. The attention to detail and the quality of workmanship throughout the project has been exceptional. Matt and his team are incredible, they worked efficiently, kept work on track, and made sure we were updated and involved at every stage. Their skills, ideas, and collaborative approach truly brought the whole project together. Communication throughout the project was good, and the team provided great pre and post project support. Matt was very detail-oriented, offered inspiration during site visits, and was supportive of our requests along the way. We’re so happy with the end result and would absolutely recommend Maxcontractorsint.ltd for any project.
Empe building services ltd
Rating: 5 out of 5
Extension Builder in Horley
BASED IN WEST LONDON EMPE BUILDING SERVICES ltd. ARE A COMPANY OFFERING A RANGE OF BUILDING SERVICES. WE TAKE GREAT PRIDE IN OUR WORK AND PLACE A STRONG FOCUS ON WORKING VERY CLOSELY WITCH OUR CUSTOMERS THROUGHOUT ALL THE STAGES OF THE PROJECT, AS TO ENSURE EVERY DECISION IS DISCUSSED AND QUERYS ARE ADRESSED. OUR REPUTATION IS THE FUNDATION OF OUR SUCCESS. WE TAKE PRIDE IN OUR APPROCHABLE, PROFESIONAL, EFFICIENT AND TRANSPARENT SERVICE. PLEASE VIEW OUR GALLERY FOR EXAMPLES OF OUR WORK.
Get in touch
Latest review:
Extensions- 31 Jan 2020
We had a porch built by Emil & Peter's team & lead water pipe changed, our house has gone from the tattiest on the street to the smartest now :) The guys turned up on time when they said & worked hard all day, their workmanship is excellent & my neighbour has also used them to do quite a few jobs now& are really pleased with their work. I will definitely be using them again & would highly recommend them!
Simply Extensions and Lofts Ltd
No reviews yet
Extension Builder in Horley
We're specialist’s in house extensions, refurbishments and Loft conversions in South London and all surrounding suburbs, with the aim to deliver. Everyone that we use for finishing, is a trade. This gives you a very high quality finish that is seldom achieved by a 'General-trade'. We are fast, clean and produce showroom quality. Our individual professionals are more than just people we work with, they are people we know. We make or exceed our deadlines to ensure client satisfaction!
Get in touch

3.8

Top rated Extension Builders

Our Extension Builders in Horley, are rated 3.8 out of 5 based on 14 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 Horley?

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

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

What are the hourly rates of extension builders in Horley?

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

Find extension builders in Horley with MyBuilder

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

Step 2: Compare different extension builders in Horley

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

Step 3: Hire Horley extension builders with confidence

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

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

What to ask a Horley extension builder before hiring?

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

An extension builder in Horley 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 Horley 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 Horley?

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 Horley 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 Horley 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 Horley

Can an extension builder in Horley help with planning permission?

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

Many Horley 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 Horley help with materials and finishes?

Yes, most extension builders in Horley 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.