Extension builders in Marlow

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (9 reviews)

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

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 Marlow

1374 Results

Sort by:

Fitzrovialofts Property Maintenance Ltd
No reviews yet
Extension Builder in Marlow
Hi, we are Fitzrovia Property Maintenance LTD. We undertake all types of handyman/building works from start to finish. With over 18years experience, we deliver every time and to a 5star finish . Contact us now for a no obligation quote
Get in touch
Building solutions
Rating: 5 out of 5
Extension Builder in Marlow
With over 30 yrs experience working in customers homes we build high quality extensions , renovations and hard landscaping solutions . From project conception to building control sign off , we handle your project in full giving you peace of mind and a high end finish . Fully insured , we also provide references from previous happy clients with site visits on request .
Get in touch
Latest review:
James provided a fair quote and delivered the project within the agreed budget. He kept the communication channel opened all the time, with constant updates about the progress and next steps so we knew exactly what to expect across the whole project. He was reachable through Whatsapp and happy to answer all our queries. He delivered a good quality job and we are very happy with the outcome as he managed the whole project including dealing with building control. I’d highly recommend him.
Hambro Builder Ltd
No reviews yet
Extension Builder in Marlow
At Hambro Builders we have one mission and that is to make our client's dream homes a reality. Whether the project be a small refurbishment or a full scale transformation our aim is the same. We pride ourselves of having high standard of workmanship to create a beautiful home at an affordable price.
Get in touch
A1
Rating: 4.8 out of 5
Extension Builder in Marlow
Hi i m Gurlal singh We are available 24 hour
Get in touch
Latest review:
Plumbing- 5 May 2025
On time and great work ethic would truly recommend
Gs building contractors Ltd
No reviews yet
Extension Builder in Marlow
We are a local, family run business based in Slough, specialising in everything from small refurbishments and extensions, to rebuilding an entire house from scratch. We possess a wide variety of skills and a highly skilled team which can carry out any job you ask. Just tell us what you need and we’ll do it.
Get in touch
Pm builder
No reviews yet
Extension Builder in Marlow
I'm semi retired builder looking to help ppl with projects they require help with..
Get in touch
Jd construction services London ltd
Rating: 5 out of 5
Extension Builder in Marlow
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.
John & Son- plumbing & heating services
Rating: 4.7 out of 5
Extension Builder in Marlow
John & Son, Established in 2005. Working on different kinds of projects including both domestic and commercial, first and second fix jobs. Also installing plant rooms. And plumbing in a whole school from scratch.
Get in touch
Latest review:
Plumbing- 7 Aug 2018
I gave this person the plumbing work for my house extension and renovation for the existing of the house, at first this person was polite and well behaved, after he was given the first instalment, his intentions became clear. The contract, which was signed by both of us, was ignored. it was allegedly written by his 17 years old son, who left them and that the man is not responsible for the contract. Whilst the man and his brother were doing the plumbing a few things which were lying around the house had gone missing, as well as the fact that he had just spontaneously disappeared for two-three weeks at a time on multiple occasions. In each occasion he had brought up excuses such as his wife had a heart attack or he had been to Poland for a bereavement. Towards the end his attitude had changed as he became more aggressive. He had persuaded me to give the last installment and promised to be devoted to the task at hand. As soon as I entrusted him with my hard-earned lump sum from my pension he took his tools and left, resulting in me having to find other tradesmen to do the remainder of the work. In his profile he advertised that he has a diploma and many other qualifications in plumbing, I have my doubts as he could not hold a basic conversation in English. This made me suspect whether he really did receive these “qualifications”. His work had many faults within it which forced me to turn to another plumber.
Glazify ltd
Rating: 5 out of 5
Extension Builder in Marlow
UK glazing specialist with over 15 years of experience in the field. Supply & fitting of windows and doors, bi-folding and patio doors, skylights, conservatories, porches, internal doors and other double glazing units. Competitive prices, outstanding quality, can-do attitude, extensive experience in dealing with the most challenging installations. FENSA Approved Installer, Insurance Backed Guarantee, Public Liability Insurance & 10-year warranty on all works.
Get in touch
Latest review:
Windows & Doors (uPVC & Metal)- 15 Oct 2026
Jassi and his team were very professional and completed the job in good time and with cleanliness. Would recommend.
Fencing
New on MyBuilder
Extension Builder in Marlow
We are a reliable and professional supplier of high-quality fence posts, committed to providing strong, durable, and well-finished products to meet our customers’ needs. We take great care in ensuring that every fence post we supply is made to a good standard, with proper attention to quality, strength, appearance, and overall finish. Our products are supplied in a neat, clean, and well-presented condition, ensuring they are ready for use and suitable for a wide range of fencing requirements. We understand that good-quality fence posts are essential for creating a secure, stable, and long-lasting fence, which is why we focus on maintaining consistent quality in every product we provide. We take pride in our professional service, careful preparation, and commitment to customer satisfaction, making sure everything is handled properly from the selection and preparation of the posts through to delivery. Customers can rely on us for dependable products, competitive service, and fence posts that are strong, neat, clean, and suitable for both domestic and commercial fencing projects. Our aim is to build long-term relationships with our customers by providing good-quality materials, honest service, and products that meet their expectation
Get in touch
G n builder hayes ltd
No reviews yet
Extension Builder in Marlow
"Welcome to GN Builder London Ltd, your trusted partner in construction excellence throughout the vibrant city of London. With a commitment to superior craftsmanship, innovative solutions, and client satisfaction, GN Builder London Ltd stands as a premier construction company dedicated to transforming visions into reality. From bespoke residential projects to commercial developments, our experienced team delivers unparalleled expertise, attention to detail, and professionalism in every endeavor.
Get in touch
New Heights Roofing & Building
Rating: 4.8 out of 5
Extension Builder in Marlow
New Heights Roofing & Building is a premier construction company specializing in both roofing and general building services. With a strong focus on roofing, our company provides an array of services including roof installation, repair, and maintenance. Our professional team also deliver comprehensive building solutions
Get in touch
Latest review:
Landscaping- 13 Sep 2021
As with any website you always wonder who will turn up but I have to say Bradley and his team were great, Bradley came first thing in the morning to have a look at the Job, then once agreed turned up promptly, they all worked extremely hard, giving updates and suggestions along the way. The transformation just in a day was unreal. Neighbors who have visited have all commented on how nice it looks, We can now enjoy our garden, we are using Bradley to do another job for us. Such a great bunch of lads, friendly and hard working and went above and beyond what was agreed.
Pro Group of Home Improvements Ltd
No reviews yet
Extension Builder in Marlow
Whatever your loft conversion,Building Construction,Extension requirements, Pro Group can offer you an end to end service from design, planning permission to finished construction. We offer all types of loft conversions including all designed to your specification. We are in same trade last 5 years as registered Company but more than 10 years as independent Builder.
Get in touch
Keystone Buildworks
No reviews yet
Extension Builder in Marlow
Hello and welcome to my profile. I am a hardworking and reliable professional with several years of experience in hands-on work and customer service. Throughout my career I have developed strong practical skills, attention to detail, and a commitment to completing every job to a high standard. I take pride in being punctual, organised, and respectful when working in customers’ homes or businesses. I am based in the Buckinghamshire area and I am happy to travel to nearby towns and surrounding areas for work. I always aim to be flexible and accommodating so I can meet my customers’ needs. My key strengths include problem-solving, practical repair and maintenance work, and providing friendly, professional service. I believe in doing the job properly the first time and making sure every customer is satisfied with the result. If you choose to hire me, you can expect someone who is dependable, honest, and committed to delivering quality work. I treat every job with care and always aim to leave customers happy with both the work and the service they receive. I look forward to working with you.
Get in touch
Jhand construction ltd
Rating: 4.5 out of 5
Extension Builder in Marlow
Hi i have 14 years experience in construction industry we do loft conversion, extensions please feel free contact us
Get in touch
Latest review:
Plastering- 21 Aug 2025
Best construction company, amazing staff. Thank you so much for the service.
Sweet Home Construction
Rating: 4.4 out of 5
Extension Builder in Marlow
We are professionals in extensions (side double story, rear single story, side and rear single story and loft conversion. We also deal with refurbishing the whole house as per requirements of the customer.
Get in touch
Latest review:
Extensions- 2 Oct 2018
Completed Side extension and 6m rear extension last Oct. Overall happy with the work. Digging, foundation, Bricks, structure, insulation, Roofing, Tiles, plumbing, flooring, painting, etc were done to good standard. Some of the minor corrections, changes or fixes needed near completion were done accordingly. Quote was in midrange and reasonable compared to compared to some others I received. Raman is very easy to work with and clear in his communication. Never had any issues all through construction through to finalising stages. Would recommend Raman to others.

4.6

Top rated Extension Builders

Our Extension Builders in Marlow, are rated 4.6 out of 5 based on 9 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 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.