Extension Builders in Windsor

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (15 reviews)

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Some of our top rated extension builders in Windsor

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LMB ROOFING & BULDING
Rating: 4.7 out of 5
Extension Builder in Windsor
Hi I’m Lee, I am the managing director of LMB Roofing and Building. We offer a wide range of building and maintenance services such as Bricklaying, Landscaping, Roofing, Guttering, Repointing, Ridge repairs, and everything in between. LMB are specialists in Historic repointing and we have preserved buildings dating back to the 1700s using the same materials and techniques as they was originally constructed with. We are a trusted and reliable local company local to Chertsey- Surrey. We can provide references and testimonials of our work and are proud to do so. Please get in contact today to discuss any jobs and we will guide you through our short process to quote. Free quotes. Free drone surveys. Fully guaranteed. Fully insured. Lee
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Latest review:
Bricklaying- 13 May 2026
Thank you Lee. Very helpful and great patient.
Absolute Brickwork and Building Services
Rating: 5 out of 5
Extension Builder in Windsor
Here at Absolute brickwork and building services, we pride ourselves on providing a high quality job satisfaction guaranteed everytime. We have over 40 years worth of experience in our team that can cater for any job that needs doing. We specialise in all types of brickwork ranging from new builds to simple garden walls. We also take on full extension work, roofs, drainage,patios and driveways, all types of steelworks ranging from steel beam for openings and steel framework buildings.
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Latest review:
Extensions- 12 Nov 2021
Built a two-storey extension, some internal alterations, re-fitted two bathrooms, and built a garden wall. Very professional, work is of excellent quality, polite and happy to chat about the details and the planning of the works. Definitely would use the same builders again.
RCB (Reeves.Carpentry.Building)
Rating: 5 out of 5
Extension Builder in Windsor
My name's Simon and I am a carpenter/builder I am a carpenter by trade but also specialise in extension's and refurbs. I have 20yrs experience straight from leaving school. We take on all aspects of building work wether it's from hanging a door, fitting a kitchen or completing a whole extension from start to finish. Also an approved Wren and Wickes kitchen installer.
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Latest review:
Kitchen Fitting- 17 Jan 2019
Simon was polite, efficient and very tidy. He listened to what I wanted (which was a little unusual), asked questions at each stage to make sure he was doing exactly what I wanted, advised when he thought an idea wouldn’t work and gave his own suggestions, communicated well with all the other tradesmen involved, got them all to do their bit in a timely fashion and worked very hard. I am getting him back to do another job imminently!
karam traders
Rating: 4.9 out of 5
Extension Builder in Windsor
All domestic and commercial Electrical and Plumbing work and maintenance and Repairs Painting and Decoration Laminated Flooring and Lino Sheet ( Vinyl ) Garden Fencing and Gardening Tiling, renovation bath and kitchen and all maintenance around property
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Latest review:
Handyman- 31 May 2026
Thank kashif for doing a great job , I would recommend it and use his services in future
Marble Line Interiors Ltd
Rating: 5 out of 5
Extension Builder in Windsor
Whether you’re planning to redo one or two rooms, or your entire property, our experienced and highly skilled team can help. With more than 10 years of experience, we provide a range of specialists plumbers, Gas/heating engineers, bathroom fitters, painters and decorators and more services that are all always performed with a high degree of care and focused attention to detail to leave precise and smooth results.
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Latest review:
Gas Work- 26 Feb 2024
Ivan and his colleague provided a very good service at a competitive price. They completed the job on time and left the site in a tidy state. Happy to recommend Marble Line Interiors
Iver Construction Limited
Rating: 5 out of 5
Extension Builder in Windsor
Iver Construction Ltd is a construction company, which is run by staff with over 15 years experience. We specialise in all your building needs. We work with you to build your dream home. We are happy to supply you with any references you may require.
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Latest review:
Extensions- 20 Jan 2014
We are so happy we chose to go with Iver construction to do the extension of our home. We shortlisted a few construction companies but liked the way that Mr Sanghani came over to explain their quote and went through how they would go about the job and was able to answer all the small questions I had about how I wanted things to be done. Very professional. The team was also very professional and very hard working. Everyday there would be some sort of noticeable work. they are a tidy team and would tidy any mess made. Obviously with all the dust that an extension can cause there was still some dust left but they cleaned up as much as possible which we appreciated. The communication with Mr Sanghani was very good. He would always pick up the phone when I called or call me back if he was busy no matter what time or day. After the job was completed when I had a few minor problems like cracks they came back to fix these . Even whilst building if there was something I did not like they would do their best to make changes. All in all very good, friendly and hard working builders. I have already recommended them to loads of my friends and family. Can not fault their construction skills.
singhbuilder
Rating: 5 out of 5
Extension Builder in Windsor
Hi my name is Dil Singh, I'm a runing own business with 10years + experience, Multi skilled in all aspects of as a certified electrician, roofing and building.Able to deliver a high standard of work. All new work can be done guaranteed,References avalible on request. I done plenty jobs like electric work: change the consumer unit, wiring, design and inspection and testing, fault finding, loft conversion, extensions. I never let down my customers. Job done guaranteed from a to z by me.
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Latest review:
Electrical- 26 May 2021
Happy with replacement programmer. Dil came straight back the next day when there was a problem and rectified.
Harry Clarke
No reviews yet
Extension Builder in Windsor
Welcome to Clarkes Clear View Glazing, we offer professional supply and installation of high-quality windows, doors, and exterior glazing products. Whether you're updating your home or working on a new build, we're here to help with expert advice and reliable service. What We Offer: Windows - uPVC, aluminium, with double or triple glazing Doors - Composite, sliding, French, and stylish bifold options Bifold Doors - Create open, light-filled spaces with smooth, modern bifolds Roof Lanterns & Skylights - Bring more natural light into your home Soffits, Fascias & Guttering - Durable roofline solutions to finish the job right Why Choose Us: friendly installers • High-quality materials Competitive prices Free quotes and advice Get in touch with Clarkes Clear View Glazing today - for a home that looks great and performs even better.
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SRAN BUILDS LIMITED
No reviews yet
Extension Builder in Windsor
SRAN Builds specialising in New Builds, Extensions, Loft Conversions and full house refurbishments. Full project management from design to implementation.
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Redmark Contractors Limited
Rating: 5 out of 5
Extension Builder in Windsor
Redmark Contractors Limited have over 10 years experience, and with many years experience in the building trade. We are a professional team are reliable builders operating in London and the wider area. We take great pride in all work which we undertake, taking great care to make sure that our client’s needs are met in a meticulous and professional manner.
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Latest review:
Extensions- 27 May 2025
They helped build me two houses and were always putting their best foot forwards. Bhupinder and his team are lovely, and are now like family to me. They have a bright future ahead for themselves and for the clients they look after.
Henley tiling company
Rating: 5 out of 5
Extension Builder in Windsor
Professional tiling services covering all aspects of bathroom and kitchen tiling using ceramics, porcelain and natural stone.
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Latest review:
Jon did a fantastic job retailing my bathroom walls and floor, he provided an excellent service from start to finish and was a pleasure to work with. We look forward to working with Jon again and would highly recommend his services
M woodley and son
No reviews yet
Extension Builder in Windsor
We offer bespoke property service with over 30 years of experience , we specialise in large scale properties refurbs and new builds so we’re happy to undertake any job of any size , from herringbone flooring to bespoke bathrooms and kitchens
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BM Contractors
Rating: 5 out of 5
Extension Builder in Windsor
I am a general builder with 21 years experience working for BM contractors. Of which I am a partner in now.the family business goes back to 40 years. I started out as a plasterer. But also build extensions and renovations.New builds and all other kinds of building work.
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Latest review:
Conversions - General- 10 May 2019
Liam was extremely professional, job completed to a five star finish. It was for my elderly mum and dad and he was very conscientious & patient towards them whilst doing the building works. They left NO mess and even went the extra mile on a couple of minor asks during the job. Cant recommend highly enough.
Surrey heritage brick and stonework limited
Rating: 5 out of 5
Extension Builder in Windsor
At Surrey Heritage Brick and Stonework LTD, we specialise in high-quality bricklaying and stonework, delivering craftsmanship that stands the test of time. With a strong focus on traditional skills and modern construction standards, we take pride in every detail of our work. From new builds and extensions to restoration, repairs, and bespoke brick and stone projects, we provide a reliable, professional service tailored to each client’s needs. Our reputation is built on honest workmanship, clear communication, and a commitment to excellence from start to finish. Serving Surrey and the surrounding areas, Surrey Heritage Brick and Stonework LTD is your trusted choice for durable, high-quality construction work.
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Latest review:
Bricklaying- 22 Apr 2021
Good company. They gave me a good price and work is underway. I would definitely recommend them.
Oakwood Property Services
Rating: 5 out of 5
Extension Builder in Windsor
Experienced, dependable, hard working with multi trade skills developed in the building industry over the last 30 years. An excellent communicator with effective organization skills, confident worker able to complete projects on time from start to completion.
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Latest review:
Bathroom Fitting- 20 Aug 2019
Michael was very quick to respond, provided a good quote and turned up on time. He was able to complete the job within the estimated timeframe, and we are very pleased with his work. He was polite, clean and hard-working. I would definitely use him again and recommend him to others. Thank you, Michael.
Vgaas uk Ltd
Rating: 3.7 out of 5
Extension Builder in Windsor
We specialise in loft conversions, extensions and new builds with over 10 years of experience.Excellent communication and planning is our main focus. We have a dedicated project manager on each site on top of a skilled foreman. All the team is skilled and experienced in their respective trades. We have had privilege to work on very demanding projects over the years, which required a lot of skill and planning on our part to deliver them successfully. Give us a call for a no obligation quote.
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Latest review:
Loft Conversion- 29 Apr 2023
My house was totally renovated by this company. I was very satisfied with much of the work. I was informed that I would be given the buildings certificate and the electrical certificate for works completed once final payment was received. I was given the buildings certificate. I was not given the electrical certificate, although the house had been fully rewired as part of the work. I chased up for the certificate but my requests were ignored. I was aware an electrician had come to inspect the works, and the builder who had been on site indicated it appeared to go well. I have now just recently had the electricity in the house inspected by an electrician and have found there were issues that required rectifying.

3.9

Top rated Extension Builders

Our Extension Builders in Windsor, are rated 3.9 out of 5 based on 15 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Windsor?

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

Find extension builders in Windsor with MyBuilder

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

Step 2: Compare different extension builders in Windsor

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

Step 3: Hire Windsor extension builders with confidence

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

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

What to ask a Windsor extension builder before hiring?

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

An extension builder in Windsor 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 Windsor 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 Windsor?

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 Windsor 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 Windsor 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 Windsor

Can an extension builder in Windsor help with planning permission?

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

Many Windsor 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 Windsor help with materials and finishes?

Yes, most extension builders in Windsor 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.