Extension builders in Croydon

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

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Some of our top rated extension builders in Croydon

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All in one builders
Rating: 5 out of 5
Extension Builder in Croydon
At All In One Builders we take pride in being your trusted partner for all your construction needs. With a wealth of experience and a commitment to excellence, we specialise in a wide range of building services tailored to meet your unique requirements.
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Latest review:
Akash made sure the job was complete exactly how he said it would be, he provided reliability during the installation of our kitchen and answered all questions very professionally. The builders were well aware of the conversations my mother and I had with Akash and so put our mind at ease. The installation itself was very quick (the tear down was very much completed in a few hours) and installed over the weekend. They were very hygiene aware and set up a cover between the kitchen and the rest of our house and didn’t disrupt our home living. They cleaned up before they were gone to very high standards without us even asking them too, all I’m sure is due to Akash’s excellent organisation skills.
Ab brickwork & building services ltd
No reviews yet
Extension Builder in Croydon
A fully qualified bricklayer by trade, with over 10years experience in extensions, conservatories and all landscaping work. (Driveway, patios, turfing, fencing)
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LondoNest Ltd
Rating: 5 out of 5
Extension Builder in Croydon
Londonest is a London-based building company specialising in high-quality residential construction and renovation. We provide reliable and professional services including house extensions, loft conversions, full property refurbishments, kitchen and bathroom renovations, and general building works. Our team combines strong technical expertise with attention to detail to deliver projects that meet the highest standards of quality and safety. We work closely with our clients from the initial consultation through to completion to ensure every project is delivered on time, within budget, and to the client’s satisfaction. At Londonest, we pride ourselves on clear communication, transparency, and a commitment to excellent workmanship.
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Latest review:
We hired this builder for a 2-metre rear extension and a very large garage extension and we’re really happy with the result. The project needed a pile foundation which is a bit more complicated, but they handled everything very professionally. They listened to what we wanted and kept us informed at every stage, which really helped as we were living in the house while the work was being done. The team were friendly, easy to deal with and worked to a good standard. Overall a very good experience and we would happily recommend them.
ibuilder service ltd
No reviews yet
Extension Builder in Croydon
Extensions, loft conversions and renovations — carefully planned, clearly priced and built with attention to detail. Hi, I’m Calvin from iBuilder Service Ltd. We bring practical building and renovation experience from UK, helping homeowners create more space, improve their layout and make their homes work better for everyday life. You should know what you’re paying for, what happens next and who to speak to. That’s how we approach every project. • Thoughtful advice: We review your ideas, drawings and existing property, explain practical options and highlight details that could affect the cost or programme. • Clear quotations: We set out the work, inclusions, exclusions and material allowances so you can make an informed decision. • Organised work and communication: We agree the sequence of work, keep you updated and plan around access, deliveries and disruption to your home. Any additional work and its cost are discussed for your approval before proceeding. • Care through to completion: We pay attention to the finishing details and review the completed work with you, including any agreed snagging. Our services include extensions, loft conversions, home refurbishments, kitchens, bathrooms and property repairs. Full building packages and labour-only work can be discussed to suit your project. Send us your plans, photos or ideas. We’ll help you understand the options and establish a clear next step.
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LIVAHAUS
Rating: 5 out of 5
Extension Builder in Croydon
We are a professional team and we are very responsible, punctual and on time with our work .
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Latest review:
Tiling- 16 Feb 2026
Luis did an excellent job on my bathroom. He had to do a lot of prep work before starting the tiling, including rebuilding the floor and repairing the walls. At every stage he explained what needed to be done, ensured that I wanted to go ahead, listed the materials that would be needed, and the cost. It made a huge different to me that Luis was willing to source and purchase all materials; he checked in with me from the suppliers as to choice and cost, and sent receipts for every penny. I cannot recommend him highly enough, for his knowledge and expertise, his honesty and hard work, and also for being such a lovely person, nothing is too much trouble. I am delighted with my new bathroom, and am planning more home improvements with Luis, when he is free again!
Prestige Build and Management Limited
No reviews yet
Extension Builder in Croydon
We are a South-East London-based company that specialises in design, bespoke property redevelopments, refurbishment, extensions and loft conversions. We also do roof replacements and create stylish bathrooms and amazing kitchens.
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Geora
No reviews yet
Extension Builder in Croydon
I am professional civil engineer with 8 years of experience in heavy civil engineering projects. Beside my daily job I work on own property development projects abroad, which involve house building. I can help with your small projects at home from furniture assembling to designing and realising your dream house development. I can also help with: - Handyman jobs - DIY at home - Removals - Anything else you need help with at home
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Kp building
No reviews yet
Extension Builder in Croydon
Here at kp building we want the best for our clients.we are a building company that has all your building needs under one roof.we specialise in loft conversions and extensions to a very high standard. We also do all types of building work no job to small. References available on request and can show jobs that I have completed.
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Loftnix Developments LTD
No reviews yet
Extension Builder in Croydon
Loftnix Developments Ltd is a London-based construction company specialising in loft conversions, house extensions and full home renovations. We work across London and visit clients at their properties by appointment. We discuss your goals, assess the space and explain practical options before preparing a clear quotation. Our team manages the build from start to finish, with care for structural work and the final details. Whether you want a new bedroom in your loft, a larger kitchen or a complete home renovation, we can help you plan the next step. Get in touch to arrange a free, no-obligation site visit and discuss your project.
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Geodesic Construction group LTD
No reviews yet
Extension Builder in Croydon
Geodesic construction group are a Building company specialising in Basements, structural works and groundworks. We also carry out all aspects of below ground waterproofing whilst offering a variety of warranty types to suit the clients needs.
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13-13 BUILDERS LTD
Rating: 4.5 out of 5
Extension Builder in Croydon
I do plastering, plaster board, carpentry, partition, roofing, groundwork’s, driveways, gardening, extension, loft conversions
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Latest review:
Carpentry- 25 Apr 2026
Very helpful, fixed my front door sill and other odd jobs around the house. Would call again and good quality
TerraMax Ground Work
Rating: 5 out of 5
Extension Builder in Croydon
TerraMax it’s specialised in all sorts of ground works and we have our own machinery mini digger, dumper and piling machine etc . - standard foundations - piled foundations - block and beam foundations - drainage installation - driveways - patios - landscape
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Latest review:
I was recommended George via a family member that had there drive built. I was very impressed by the work that was done and had made up my mind there and then that George would build My drive. It was built exactly the way I wanted it without any hassle and stress. The work George does is amazing and with great care and very important a clean job. If your looking for great results without any stress then George and his team are for you.
Oakwood interior solutions Ltd
No reviews yet
Extension Builder in Croydon
We are a famity run buisness with decades of experience. We cover all aspects of construction from extensions and full renovations to smaller jobs. We cover all trades and can offer a whole job in one package. We always keep the clients expectations at the heart of every job big or small and provide nothing but the highest quality service with a friendly approach.
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BG Lofts and Extensions LTD
Rating: 5 out of 5
Extension Builder in Croydon
I am an expert in construction & refurbishment for residential & commercial properties inc new builds. I undertake all kinds of work inc structural work, refurbishment, steel work, drainage, plumbing, electrics, loft conversions, kitchen installation, carpentry inc bespoke furniture & help with planning & design. By trade I am a carpenter, with 10+ years of experience where I have completed 100's of jobs. I am well priced with a very high standard of finish. References can be supplied on request
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Latest review:
Extensions- 14 Nov 2019
Bogdan himself is extremely knowledgable and his years of experience in industry is clear to see, which makes choosing him great value for money. Before and during the project he offered solutions that we hadn't considered and the would in fact save us money and be of benefit to us in the future. His team is punctual, reliable, diligent, speedy and clean! They take pride in their work which has led to a highly satisfactory work in the final build. Bogdan also has great connections to third parties (e.g. to flooring and curtains/blinds providers) which is very valuable, especially when trying to coordinate different aspects and timings of a full house redecoration. His quotes and payment structures are fair, clear and concise which is also very helpful. His communication is excellent too. All in all, Bogdan's great work took away a huge amount of stress during these projects. I would highly recommend Bogdan and his team for any prospective works someone is considering.
Valiant Construction Ltd
Rating: 4.2 out of 5
Extension Builder in Croydon
Free consultation to discuss the your requirements! Valiant Construction Ltd is a property development company that specialises in residential property development and undertaking various building works to construct extensions new builds and refurbishments
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Latest review:
Carpentry- 8 Sep 2021
excellent service door perfect and he cleaned up after him Would recommend
K&C
No reviews yet
Extension Builder in Croydon
Always up for a challenge and to just go that extra mile to please our customers!
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4.2

Top rated Extension Builders

Our Extension Builders in Croydon, are rated 4.2 out of 5 based on 19 reviews from customers like you.

Quality screening

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

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

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

What are the hourly rates of extension builders in Croydon?

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

Find extension builders in Croydon with MyBuilder

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

Step 2: Compare different extension builders in Croydon

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

Step 3: Hire Croydon extension builders with confidence

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

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

What to ask a Croydon extension builder before hiring?

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

An extension builder in Croydon 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 Croydon 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 Croydon?

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 Croydon 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 Croydon 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 Croydon

Can an extension builder in Croydon help with planning permission?

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

Many Croydon 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 Croydon help with materials and finishes?

Yes, most extension builders in Croydon 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.