Extension Builders in Horsham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (8 reviews)

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Some of our top rated extension builders in Horsham

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Cosmin Construction & Consulting LTD
No reviews yet
Extension Builder in Horsham
General Contractor with experience in all stages of building work from foundations to final finishes. Most of the work is done by my team and specialist jobs are sub-contracted. I can manage the whole process and provide clarity and simplicity of the the work.
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Base builders
Rating: 4 out of 5
Extension Builder in Horsham
Founded by experienced tradesmen, we specialise in brickwork, repointing, concrete bases, fencing, garden transformations, and summer house installations. With years of hands-on experience, we pride ourselves on delivering high-quality workmanship across all aspects of landscaping and groundwork. From full garden renovations to structural brickwork and durable base installations, we offer a reliable, professional service with attention to detail on every project.
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Latest review:
Jordan & the team were excellent throughout. They helped us design our garden and replaced all of our fence panels with Venetian-edged batten fencing. They also created a lovely two-course-high planter around the garden perimeter, dug out and levelled the garden, added fresh topsoil and laid new grass. We’re looking forward to Base Builders coming back to install our new patio. We’re very pleased with the company — they went above and beyond and their pricing was very fair.
Oracle glazing & repairs ltd
Rating: 4.8 out of 5
Extension Builder in Horsham
With over 25 years of industry experience, Oracle Glazing is your trusted partner for premium window and door solutions across Sussex. Based in Worthing, we proudly serve homeowners, businesses and trade professionals alike, delivering exceptional dedication to quality. Our partnerships with leading brands, such as Origin and Decorio, allow us to offer cutting-edge solutions, tailored to your needs. We provide a range of glazing services, ensuring every project is handled with the utmost care and precision: At Oracle Glazing, we’re proud to have built a reputation for delivering reliable, high-quality results and outstanding customer care. Every project, whether it’s a minor repair or a full window and door installation, is treated with the same attention to detail and dedication. Whether you want to restore heritage windows or install modern Origin bi-folds, we’re here to help From sleek, modern double-glazed windows to stylish, secure doors, we supply and install a variety of options, tailored to your requirements. Whether you’re looking to enhance the natural beauty of your home or create a stunning storefront for your business, we can help.
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Latest review:
Windows & Doors (uPVC & Metal)- 7 May 2026
Following contact with the trader and resolution of the initial communication issues, this review has been updated as a temporary placeholder while works are ongoing. At present, the customer has confirmed that communication has resumed and the project is proceeding as agreed. As the works have not yet been completed, a final review cannot fairly be given at this stage. The customer remains hopeful that, upon successful completion of the project, this review can be updated to reflect the full experience positively.
Southern extensions
Rating: 4.1 out of 5
Extension Builder in Horsham
We have over 30 years experience in all aspects of building. Starting in London and now covering the south coast. This includes the maintaining of residential properties as well as loft conversions/ extension's /basement's / kitchens / bathrooms/ decorating (internal and external) /brickwork / plastering / plumbing. All trades workers are fully qualified. Properties are left clean and tidy at the end of each day. Work is guarenteed and fully insured. we only fully compleat one project at a time are based in Hove / eastgrinstead / Eastbourne We cover from Eastbourne to Worthing and up to Crawley
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Latest review:
Extensions- 13 Nov 2019
Mark managed the whole job (which was complex and involved three different rooms; change of use and new build) effectively and efficiently and engaged family members and friends in various trades as needed. With extensive experience Mark was able to make suggestions and put forward many ideas to improve the basic plans that we had which was most helpful. This included raising a ceiling level to a better height than we had envisaged possible and removing the need for a pier so that a wall could be flat throughout the new kitchen. Mark has a good eye for the aesthetics of a job. He is also very amenable to adding on extra smaller jobs in the process and even procuring some materials that I wanted in order to do something myself ! The workmanship and finish is high quality for a competitive price. I would not hesitate to recommend Mark and have, in fact, already done so for another couple of potential jobs. Finally, Mark is a really nice guy and great to have a chat and cup of tea with (two sugars!)
PPG CONSTRUCTION
No reviews yet
Extension Builder in Horsham
Im an experienced Bricklayer who has run new build sites for 15 years on big projects and ive been a bricklayer for 29 years. Im GNVQ LEVEL 2 qualified and also have an sstss qualification in site management, health and safety
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K.T Building Services
Rating: 5 out of 5
Extension Builder in Horsham
We are a small building company that carry out loft conversions, extensions, renovation and all general building works. I have been a builder for 12 years and have always had happy clients.
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Latest review:
Fencing- 16 May 2017
Karl at KT Building Services did a great job replacing a damaged post and fence panel in my garden. He arrived on time, got straight to work and hauled away all the rubbish. I would definitely use his services again and would recommend him to all.
Strevett and sons ltd
No reviews yet
Extension Builder in Horsham
Strevett and Sons Ltd are a local general building company with quality at heart, with over 10 years in the industry.
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Brixter Construction Limited
No reviews yet
Extension Builder in Horsham
Brixter Construction LTD was formed in 2015 by Managing Director Joshua Baxter. Josh has worked in the building industry for over 15 years, predominately working in Sussex where he has built a renown reputation for his exceptional work. Josh prides his company on providing all of his clients with high quality workmanship alongside reliable and trustworthy tradesman, managing jobs from start to finish on budget and on time. Brixter Construction is based in Burgess Hill but services all areas of Sussex. We have a team dedicated to all of your residential projects. Services we provide but not limited to: Extensions New builds Loft conversions Internal refurbishments Patios Driveways Soft/Hard landscaping Underpinning Structural alterations Brickwork Blockwork Carpentry Project management
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R Bonar Maintenance
Rating: 5 out of 5
Extension Builder in Horsham
We are family run business based in Guildford with over 25 years experience in building industry. R Bonar Maintenance we offer a full range of building services tailored to your individual requirements. With many years of experience and a wealth of knowledge within the building industry. R Bonar Maintenance always ensure that a high quality service at affordable price is offered to each and every client at all times.
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Latest review:
Extensions- 3 Jun 2020
Small hallway extension and roofing. Excellent standard. Extremely thorough, great attention to detail, total satisfaction; triple A workman, 100% positive attitude.
Turner Building Services
No reviews yet
Extension Builder in Horsham
My name is Andy Turner. I’ve been in the Building industry for. 44 years and have a lot of experience in all aspects of the building Trade. I have built mini extensions and driveways throughout Sussex. We have the last five years become resin installers I said one of the newest product on the market.
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Alland Drylining and Construction
No reviews yet
Extension Builder in Horsham
Here at Alland Drylining and Construction, our sole aim is to provide an end product that you, the client is happy with. We are able to work along side other contractors or with our team of sub-contractors to achieve our goals, in a timely and efficient manner.
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ImperialHires
No reviews yet
Extension Builder in Horsham
At Imperial Hires we specialize in professional 360 machine digger services, delivering high-quality groundwork solutions for residential, commercial, and construction projects. With years of experience in excavation, trenching, footings, and garden/site clearance, we take pride in offering reliable, efficient, and safety-first services to our clients. Whether you need precise trench digging for utilities, strong foundations for new builds, or land clearing for landscaping, we ensure every job is completed to the highest standard. Our commitment to professionalism, customer satisfaction, and attention to detail sets us apart in the industry. Our Services: ✔ Trench Digging & Footings – For foundations, drainage, and utilities ✔ Garden & Site Clearance – Removing debris, overgrowth, and unwanted materials ✔ Landscaping & Groundworks – Preparing land for patios, driveways, or new builds ✔ Small Demolition & Excavation – Efficient removal of structures and land reshaping
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Blackwood building contractors limited
No reviews yet
Extension Builder in Horsham
Blackwood Building Contractors Limited are a small building company based in Mid Sussex. David and Joss have over 28 years combined experience in the building industry. Specialising in all aspects of carpentry & timber framing. At Blackwood we undertake a large variety of jobs such as: 1st & 2nd fix carpentry Oak and timber framed structures Kitchens Structural steel works Renovations Extensions Garage conversion We look forward to hearing from you
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S&O BRICKWORK LIMITED
No reviews yet
Extension Builder in Horsham
Here at S&O brickwork we have the heighest quality in mind at all times. With great customer care and attention to detial we will see all builds small or big through as if they were on our own properties. With a huge portfolio of work from schools,hosptials,new builds,restirations and residential work. So do not hesitate to contact us for a free quote on any size work from patios to castles.
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H & H Maintenance
Rating: 5 out of 5
Extension Builder in Horsham
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
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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.
Bradsbuilds ltd
No reviews yet
Extension Builder in Horsham
We are a small building company based in Guildford who cover all areas of home improvements and landscaping. From extensions to a patio we understand how important your home is and will work with you to ensure your vision is brought to life.
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3.9

Top rated Extension Builders

Our Extension Builders in Horsham, are rated 3.9 out of 5 based on 8 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Horsham?

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

Find extension builders in Horsham with MyBuilder

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

Step 2: Compare different extension builders in Horsham

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

Step 3: Hire Horsham extension builders with confidence

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

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

What to ask a Horsham extension builder before hiring?

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

An extension builder in Horsham 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 Horsham 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 Horsham?

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 Horsham 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 Horsham 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 Horsham

Can an extension builder in Horsham help with planning permission?

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

Many Horsham 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 Horsham help with materials and finishes?

Yes, most extension builders in Horsham 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.