Extension Builders in Redhill

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (17 reviews)

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Some of our top rated extension builders in Redhill

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AL-GASA LTD
No reviews yet
Extension Builder in Redhill
We specialise in extensions and domestic building refurbishments. We are your local builder and much more. Quality work at competitive prices. We give a time period for every job and we always stick to it.
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HJ Contractors Limited
Rating: 4.7 out of 5
Extension Builder in Redhill
HJ is a small friendly local company. We take on all sizes of jobs from as little as hanging curtain poles to as big as extensions. HJ is made up of a team of people with the combined experience of 35+ years in the building trade. Our company goals are to supply high quality work at affordable prices and excellent customer service.
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Latest review:
Handyman- 9 Sep 2018
Finished the job quickly. Will hire again.
Douglas carpentry and building
Rating: 4.9 out of 5
Extension Builder in Redhill
Douglas carpentry and building has over 10 years experience in all aspects of building work. We as a company have very high standards to accommodate all your building work needs from internal doors, skirting, architraves, built in wardrobes to all general building work. Hard working, dedicated, reliable, clean and tidy and here to give you a fair and honest quote. Please look at previous work on my Instagram page @douglascarpentry23
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Latest review:
Carpentry- 14 May 2026
Replaced a rotten external single door. The existing door frame was reused, as per request. This frame wasn't perfectly square which Alex had to compensate for. Alex arrived on time and completed the work without any unresolved issues, taking all offcuts and old door away for disposal.
The Corden blue group Ltd
No reviews yet
Extension Builder in Redhill
The Corden Bleu Group is based in Horsham offering a multitude of building services. We have a team of various trades who all work in hand to deliver work to the highest standard. We pride ourselves on providing an elite service to all our customers whether the project is big or small, which we are proud to say this is reflected with our continual customer return rate. If you are thinking of improving any aspect of your property we would love the opportunity to work with you.
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AT Line Construction
Rating: 5 out of 5
Extension Builder in Redhill
We are a limited company with many years experinece at construction and usually undertake medium to large size projects like refurbishment, bathroom restoration, loft conversation, extensions and general refurbishment. With high end quality.
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Latest review:
Extensions- 17 Nov 2022
AT Line Construction built our extension and worked on the remodel of the inside of our flat. We are extremely happy with the results. Adison and his team are very professional and friendly. They were able to deal with any changes and problems that came up quickly and sensitively. Part of the build was to renovate a small disused swimming pool - this was a tricky job, and they were able to help us creat an amazing pool. We would definitely recommend them.
GBN Building Services Ltd
Rating: 5 out of 5
Extension Builder in Redhill
We are a small but very experinace and reliable team.The work we undertake includes Lofts,Kitchen extension,Internal refurbishment,Bathrooms,Painting and decorating jobs, General building.
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Latest review:
Carpentry- 21 Mar 2023
Georgi did a good job. He is easy to deal with and can be relied on.
Nsd Carpentry & Building ltd
Rating: 5 out of 5
Extension Builder in Redhill
NSD Carpentry & Building Ltd is a family run business with over fifteen years’ experience in the industry. We specialise in loft builds, extensions, refurbishments as well as general carpentry and pride ourselves on having high standards. With our attention to detail, ability to come up with creative solutions to problems and cleanliness on site, we’ll be providing you with quality workmanship and customer care at competitive prices.
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Latest review:
Extensions- 3 Feb 2021
Trying to find a trustworthy trades person is often difficult and until you have used them you never know whether your decision was the correct one. I can say that I happy with the extension that NSD Carpentry & Building Ltd have completed. Steve can be trusted to do what is asked of him and I would be happy to use his services again. Could do better keeping the site clean and tidy!!
Sean Sharkey
No reviews yet
Extension Builder in Redhill
We are a team of reliable and friendly builders, who offer a straight forward, courteous and efficient service. We believe in good time keeping, a clean and tidy environment with minimal disruption. We can build anything from a single bookshelf to a complete extension.
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Litehouse Renovations
Rating: 5 out of 5
Extension Builder in Redhill
Litehouse renovations is a reputable building company with over 25 years of experiance we take immense pride in offering construction services of the highest quality. Whether it's building extensions or renovating your bathroom you can rely on our team to do an exceptional job. By employing the services of our builders, you can rest assured knowing seasoned professionals are handling your project. We provide a professional service from quotation stage through to work completion.
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Latest review:
Handyman- 31 May 2026
Neil did an amazing job. He was fast, polite and professionnal. He fixed our wall and ceiling perfectly, and during the heatwave which must have been hard, but it didn't impact the quality of his work.
Built By Brick
Rating: 5 out of 5
Extension Builder in Redhill
I am a Surrey based Builder with over 30 years experience. Working on smaller and larger projects, such as New builds ,Home renovations ,Extensions, Driveways, Brick-walls, Patios & fencing. I pride myself on being reliable, clean and tidy and customer satisfaction is key. I am open to giving ideas as to the best solution.
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Latest review:
Bricklaying- 19 Aug 2021
Garry was really good at giving us some advice. He was prompt in contacting us and communicated well throughout the process. His prices were very reasonable and he carried the work out promptly. The work was exactly what we wanted and we would highly recommend him.
Ins Projects Limited
Rating: 4.9 out of 5
Extension Builder in Redhill
Initially, our endeavors focused on smaller-scale projects, encompassing garden wall constructions, minor apartment refurbishments, bathroom renovations, and kitchen installations. This foundational period allowed us to cultivate extensive experience with material suppliers, municipal building inspectorates, and to foster strong client relationships. Building upon this foundation, we have evolved into a construction firm specializing in building extensions, loft conversions, and comprehensive house renovations. Over time, our dedication to meticulous work and exceptional organizational practices has established a distinguished company reputation. Our services encompass the structural construction of new projects, alongside associated electrical and plumbing installations, and all categories of finishing construction and installation works. We manage the entire construction process, from inception to the final handover of keys. We provide a structural guarantee for newly constructed sites, and upon client request, we furnish all requisite certifications. Our pricing is competitive, and we consistently demonstrate a client-centric approach.
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Latest review:
Bricklaying- 27 Jun 2022
Ivan got the job done quickly and efficiently, he done a good job and we have used him for other future projects :)
M K maintenance
Rating: 4.8 out of 5
Extension Builder in Redhill
Hi My names Mark. I have been painting and decorating/building for 45 years and have a small team that works alongside me. I am very reliable and have my public liability/insurance details. Once on site have a quick turnaround in completing the job to my clients satisfaction. I work clean and tidy at all times. I would always come before accepting the job to price up to ensure we are both happy with the agreement. Please do not shortlist me if you are not able to let me come and view the job.
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Latest review:
Painting & Decorating- 31 Oct 2025
Mark was puntual, professional and very fast to complete the paint job. And he was very nice too. Would highly recommend.
Earlswood general building and landscaping
No reviews yet
Extension Builder in Redhill
Hard-working individual Have been working in building trades over 20 years
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SonRoc Solutions limited
Rating: 5 out of 5
Extension Builder in Redhill
I have over fifteen years experience working in this business & I have gained a wealth of knowledge during that time. I absolutely love my job. It is this pride in my work that manifests itself in each and every commission I undertake. No matter how large or small, every aspect of a job is given the same attention to detail and craftsmanship. It also goes without saying that all work is carried out to building regulated standards, I am fully insured and all my work is guaranteed.
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Latest review:
Driveways (Paved & Loose)- 10 Jan 2026
Hired for a large multilevel sandstone patio and tarmac driveway. Easy quoting process. completed to cost and as per description. They were open to making alterations where needed and completing finishing touches when pointed out. They were also adaptable to coming back and completing a different solution for an area of driveway that they were unable to complete, they came back completed a concrete pad. Areas of improvement from a homeowner perspective are - working surfaces could be better protected with boards etc to prevent concrete staining. - Some damage left to my hose and spray handles which was used but they were agreeable to deduct costs for replacement which is fine. -A reconfigured drain pipe was left leaking, requiring another trade hire. Follow up: Had one small sandstone paver come loose within weeks, possibly because it was too small a cut and because the back of the stone didn't have mortar? It's a small repair but they haven't yet returned to repair. Overall good
Albatross Construction
Rating: 5 out of 5
Extension Builder in Redhill
We are a small builder and groundwork company based in South Croydon, with over 30 years building extensions and groundwork experience. Having completed many extensions localy and various groundwork projects. We have all our own plant and machinery which keeps us price competitive and never ask for money up front (unlike some other builders) Our service comes with fully compressive building all risk insurance and all work undertaken is guaranteed References are available on request
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Latest review:
Groundwork & Foundations- 26 Feb 2025
I hired John to build a concrete base for a garden building installation and he did a great job, resulting in follow-on work for him laying a new Indian sandstone patio in front of the building, which he also did to a high standard. After receiving several quotes from different firms, I selected John because he asked the right questions, clearly thought about the solution and was interested in ensuring the result was the right one right for me. He's a lovely bloke and a pleasure to have working here. He works on his own and for the most part keeps himself to himself, wasn't fussed about tweaking the scope here or there as the plan developed and kept the place pretty tidy throughout. I will be using him again for sure, so I wholeheartedly recommend John for any work you're considering hiring him for.
Visualise Design & Build
Rating: 5 out of 5
Extension Builder in Redhill
Welcome to Visualise Design & Build We are a trusted construction company based in Surrey. We specialise in bringing your vision to reality. We undertake all construction works with our in house team. - Extensions - Loft Conversions - refurbishments - Kitchens & Bathrooms - Bespoke Joinery - landscaping - Garden rooms - Electrics - Plumbing - Plastering If you have any questions or would like a free quotation please feel free to message us.
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Latest review:
I was recommend Visualise from a friend and booked in for a quote. The team were very professional and arrived on time every day. They always ensured they left the area clean and tidy and I was super happy with my new kitchen. Two of my friends have already booked in with Visualise as they were so impressed. Thanks guys!

3.8

Top rated Extension Builders

Our Extension Builders in Redhill, are rated 3.8 out of 5 based on 17 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Redhill?

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

Find extension builders in Redhill with MyBuilder

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

Step 2: Compare different extension builders in Redhill

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

Step 3: Hire Redhill extension builders with confidence

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

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

What to ask a Redhill extension builder before hiring?

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

An extension builder in Redhill 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 Redhill 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 Redhill?

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 Redhill 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 Redhill 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 Redhill

Can an extension builder in Redhill help with planning permission?

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

Many Redhill 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 Redhill help with materials and finishes?

Yes, most extension builders in Redhill 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.