Extension Builders in Marlow

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (13 reviews)

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Some of our top rated extension builders in Marlow

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Fastway Constructions Limited
Rating: 5 out of 5
Extension Builder in Marlow
At Fastway Constructions, we are dedicated to redefining the construction industry through sustainable practices and innovative solutions. Based in the United Kingdom, we pride ourselves on delivering exceptional quality and reliability across four key sectors: Residential Constructions, Commercial Constructions, Industrial Constructions, and Renovation & Remodelling Here at Fastway all of our employees are fully qualified, skilled and very experienced building contractors that have worked on hundreds of projects over the years resulting in 100% client satisfaction, full job completion on time, and always well within budget. All employees hold cscs cards for their relevant trades along with health and safety certificates and first aid for a competent safe worksite at all times. We are a building contractor with a professional approach to all our projects. We offer a seamless and multi-trade service, for all domestic projects from new builds, extensions, loft conversion, renovation to fully finished houses, all tailored to meet our clients’ specific requirements.
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Latest review:
Plumbing- 1 Aug 2025
Jitin did a good job in finding a solution to the leak in the washing machine drainage pipe. He used his experience in problem solving and fixed the issue. Thanks Jitin
JBL DEVELOPERS LIMITED
No reviews yet
Extension Builder in Marlow
JBL Developers is a professional residential and commercial property‑development company, fully registered at Companies House. Visit our website to explore our portfolio and services. With a focus on quality, integrity and client satisfaction, we deliver bespoke renovations, refurbishments, conversions and new builds, tailored to your vision and budget. From the initial consultation through design, planning, build and hand‑over, our experienced team manages every phase with transparent communication and attention to detail. Whether it’s transforming a single room, overhauling a full home or developing a larger project, we ensure projects are completed on time, on budget and to the highest standards. At JBL Developers we believe in building lasting relationships and creating spaces that are not only aesthetically pleasing but functional, sustainable and built to last. Get in touch at to find out how we can bring your property ambitions to life.
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Construction
Rating: 1 out of 5
Extension Builder in Marlow
We do all construction work Skim ,paint ,wood floor , floor tiles ,krainder Bathroom ,new extension and garage Brick nd block work
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Latest review:
Bricklaying- 11 Mar 2023
The builder came to build a single skim brick wall to the side entrance of my house -: around 120 bricks. He agreed to £300 for labour including inserting a door. Upon arrival, of which he came on foot, he had no tools, no bucket, no drill, no ladder. He had to borrow all of my husbands equipment and sent my husband out for extra materials on two occassions. The lintel he asked us to order was the wrong size, we ordered one that was far too big and wasted more money due to him measuring up the job wrong - again a waste of money. Then, we had to drive him to toolstation to buy a brick cutting tool because of this using our own time and fuel. You would assume a brick layer would have tools if they are doing jobs privately - his colleagues excuse was we are just starting up our private buisness. He then started asking for more money and stormed off leaving all the rubbish behind even though we gave him the £300 as agreed prior to the job. The wall itself is okay but again at one point he refused to build up to the top because of a metal screw apparently impossible to remove, so yet again my husband had to assist with the job and removed the screw. Honestly more hassle than it was worth. Also the door was not fitted so now will need to pay someone else to do the job. I do feel bad for them that do not have any equipment but when you pay money for a job you do expect a certain level of service. I wish them good luck in the future and hope they take this advise on board.
MB Brickwork
Rating: 5 out of 5
Extension Builder in Marlow
I am a bricklaying and building contractor with over 20 years experience working in and around Oxfordshire. I pride myself on producing a high standard of workmanship and making sure clients are left with a job they can be proud of. I work alongside some of the best tradesman , so no job is too big or too small.
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Latest review:
Extensions- 17 Apr 2021
Very positive and friendly. Had some good ideas. Waiting for him to do some more work for me
London Prime Construction and Builders LTD
No reviews yet
Extension Builder in Marlow
London Prime Construction and Builders is where we turn your dream home into a reality. With a reputation for excellence and a passion for exceptional craftsmanship, we specialise in residential construction, property extensions, and comprehensive renovations across London. Our mission is to enhance your living spaces with customised solutions that reflect your personal style and functional needs.
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Hsingh builders ltd
No reviews yet
Extension Builder in Marlow
I am professional builder with an experience of 17 years in the building industry and track record of successful projects . I am committed to deliver high standard of quality work which is completed on agreed time scale within the given budget. Starting from beginning till end, customers satisfaction is my priority , which is why I am able to turn visions into reality. You can really on us as our core values are- strong foundations, beautiful designs and lasting value. My vision as a builder is to build the dream house for my customers, so you can trust us in bringing architectural visions to life. You can rely us on as we do cater the needs of our customers, provide attention to every aspect and complete the work to high standards. We do discuss each step of the work with the customer and build a long lasting relationship with customers.
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iCAN Construction Ltd
No reviews yet
Extension Builder in Marlow
iCAN Construction is a passionate team of trustworthy qualified builders and experienced professionals. We pride ourselves on providing a first-class service alongside high standards of work. We specialise in: Extensions, Loft Conversion, Property Refurbishments, Bathroom Renovations, Property Maintenance and Groundworks Whether it is a kitchen, bathroom, or full house renovation, with our 20 years of experience and excellent reputation you can be confident your ideas will be joined with our craftsmanship to produce your dream home. Throughout these years ICAN Construction has gained a reputation as a quality renovator and a trusted contractor, which can confidently take on any projects anyone can have in mind. From concept to creation helping you build the home of your dreams.
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Now eco4 ltd
No reviews yet
Extension Builder in Marlow
We are a trusted construction company specialising in general building work and home extensions. With a focus on quality craftsmanship, reliability, and attention to detail, we help homeowners transform their properties — whether it’s a full extension, renovation, or day-to-day building work. Our team delivers projects on time, on budget, and to the highest standards, ensuring every customer is proud of the results.
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elite surveying and consultancy ltd
No reviews yet
Extension Builder in Marlow
Having nearly 20 years experience in the masonry and construction sector my knowledge come directly from hands on experience, having built and managed projects from small extension right through to 400 unit high rise developments, my main experience is in high end one off bespoke houses so you can be assured I have the knowledge and expertise to undertake any type of project you require.
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B&G Brothers Construction Ltd
Rating: 4.8 out of 5
Extension Builder in Marlow
WELCOME TO B&G BROTHERS CONSTRUCTION LTD B&G Brothers Construction Ltd is a well-established building company based in Stanmore North West London. We carry out most types of building works, including: House Extensions Property Refurbishments Loft Conversions Ground Works And all type of repairs and alterations. You can be confident in our abilities to create you that perfect home using the highest quality of materials and best possible level of workmanship
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Latest review:
Extensions- 11 Jan 2023
Rear garden extension done with new fully refurbished old house new electric new plumbing, all work done properly and good quality, experienced builders , +++ big job done within time frame and olso garden levelling with retaining wall ! Andrei and Alex recommend!
Oakleigh building services
No reviews yet
Extension Builder in Marlow
Oakleigh building services is a well established, highly regarded building company. Covering all aspects of roofing and building works , Based in Surrey
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TARA BUILDERS LTD
No reviews yet
Extension Builder in Marlow
At Tara Builders, we're passionate about building better spaces in London and the surrounding areas. We focus on quality workmanship and clear communication to ensure every project, from renovations to new builds, meets our clients' exact needs. Our goal is to help you achieve your vision, creating a space you'll love.
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profastbuild
No reviews yet
Extension Builder in Marlow
hello i been on building industry for over 10 years i have a team of 5 guys at the moment and we doing an extension in claphan and a loft convention in balham i do most of things like extension lofts conversation house refurbished paiting and decorating bathrooms kitchgen gardens
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Z&S Builders Ltd
Rating: 4.7 out of 5
Extension Builder in Marlow
Z&S builders are an equal opportunities employer. We are diverse workforce made up of hardworking, experienced people . We provide our customers the best service. Our quality of work is higher and we never compromise with the quality.
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Latest review:
Painting & Decorating- 16 Sep 2021
Don’t trust them they lying in every bit we send them back on the first day of the work
Greenaway Construction
No reviews yet
Extension Builder in Marlow
I have been a builder for 25 years we cover all trades so take the job from demo to to completion. Have plenty of repeat customers who could provide references if required.
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Thiara
No reviews yet
Extension Builder in Marlow
Be a good gud person and we do all kind of job such as loft extension door bathroom electric plumbing tiling kitchen everything
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4.1

Top rated Extension Builders

Our Extension Builders in Marlow, are rated 4.1 out of 5 based on 13 reviews from customers like you.

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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 Marlow?

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

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

What are the hourly rates of extension builders in Marlow?

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

Find extension builders in Marlow with MyBuilder

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

Step 2: Compare different extension builders in Marlow

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

Step 3: Hire Marlow extension builders with confidence

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

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

What to ask a Marlow extension builder before hiring?

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

An extension builder in Marlow 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 Marlow 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 Marlow?

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 Marlow 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 Marlow 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 Marlow

Can an extension builder in Marlow help with planning permission?

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

Many Marlow 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 Marlow help with materials and finishes?

Yes, most extension builders in Marlow 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.