Extension Builders in Downside

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in Downside

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Saunders Developments Ltd
Rating: 5 out of 5
Extension Builder in Downside
Saunders Developments are a Property Development company that specialise in Design & Build, Extension's, Conversions, Gas engineering & Steel Structures. We currently cover London, Surrey, hampshire, West & East Sussex. We have over 16 years of experience within the construction industry, with our grounding in Structural Steel. Our in-house team of expert's consist of CAD operators, Surveyors, Gas Engineers, Plumbers, Electricians, Builders & Carpenter's
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Latest review:
Restoration & Refurbishment- 22 Jan 2020
Saunders Developments were friendly, efficient and left my house clean and tidy, after what was quite a dusty and dirty job. I'm really pleased with the work and would happily recommend them to others!
Vincent Kane Blackett & Sons Ltd
No reviews yet
Extension Builder in Downside
We are a family run business based in Wraysbury. With many years of experience in all aspects of the building industry. We take pride in our exceptional workmanship, creativity and our commitment to excellence. We have successfully completing over 70 extensions, and have built 10 houses in Ashford, 40 loft conversions, numerous total house refurbishments, a few of which to cater disability living and 8 external swimming pools. We cover a broad spectrum of work and have a diverse understanding to meet the individualised needs of clients.
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TJ Elite Building Services LTD
Rating: 5 out of 5
Extension Builder in Downside
We have a team of qualified builders, electricians, plumbers, roofers to mention a few covering all aspects the building services we offer. Accumulating over 10 years of experience, covering all requirements of our customers, we aim to deliver a high quality service for your requirements We can provide all aspects of job to be covered from start to finish, from drawing plans, approval to the high quality finish of the job.
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Latest review:
Diligent, professional and finished job to a high standard. Only needed flooring done in all rooms but after seeing the quality of work, had further work carried out in gardens front and back. Have had no issues since and hes the one family goes to for any jobs that need doing, as know work gets done and we can trust that it will be of high standard.
Onwood Carpentry & Joinery Ltd
No reviews yet
Extension Builder in Downside
Onwood Carpentry & Joinery Ltd specialises in high-quality carpentry and joinery for residential projects. We carry out first and second fix carpentry, as well as build extensions, loft conversions, undertake full renovations, delivering reliable workmanship and a professional service from start to finish. We have strong experience in residential build projects, structural carpentry, including roofs, studwork, RSJs, and all aspects of internal fit-out. We take pride in precision, organisation, and attention to detail on every job. Our services include: • First & second fix carpentry • Structural carpentry • Extensions & loft conversions and new builds We understand how important trust and communication are when working in someone’s home. That’s why we are punctual, tidy, and respectful, keeping sites safe and disruption to a minimum. We aim to complete all work to a high standard, on time and within budget. If you’re looking for a dependable carpentry and joinery company that takes pride in quality workmanship, Onwood Carpentry & Joinery Ltd would be happy to help.
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Almond brickwork ltd
No reviews yet
Extension Builder in Downside
Almond Brickwork Ltd is a Guildford based company serving Surrey and Hampshire. We take the utmost pride throughout all of our work. Passion and enthusiasm drives each project forward. It is this passion and enthusiasm that makes us stand out from the crowd and is why we are chosen by local builders and private clients on a regular basis for our skills to help boost different projects to their full potential. We take great pride in our reputation that continues to grow.
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Rokas
No reviews yet
Extension Builder in Downside
Hi I have 10 years experience in carpentry so I undertake all aspects of carpentry work.
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Strongwell Construction LTD
No reviews yet
Extension Builder in Downside
We are an experienced family-run construction team specialising in extensions, renovations, and new builds. With years of hands-on expertise, we pride ourselves on delivering high-quality workmanship, attention to detail, and excellent customer service. From the first consultation to the final touches, we work closely with our clients to ensure every project is completed on time, on budget, and to the highest standards. No job is too big or too small — your satisfaction is our top priority.
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D A Lynch Building Services Ltd
Rating: 5 out of 5
Extension Builder in Downside
Hi my name is Dwight. I'm here from D A Lynch Building Services Ltd. I am here to provide you with excellent building work and whatever else you have to do around your home. My company carries out work to the highest quality with professional workmanship.
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Latest review:
I was very pleased with this company so much so that they are starting a new job for me November 15. The building firms carried out a full loft conversion for me installing bathroom, brickwork, joinery, plastering, Roofing and installation of windows and double glazed doors. I have high standards and want everything to be completed in the same way, the workmen respected my home and always left if clean. My main contact was with the owner of the company Dwight Lynch, he was very flexible and Nothing was too much for him to do. He has an attitude which I like in a builder "customer not always right but must be happy" he provided me with ideas along the way and where things did not go to plan due to my own instructions he worked around the issue and provided suitable alternative options. I was very happy with the pricing of the job and feel that certainly I would recommend him and also I would use him again. He and his workmen were all trust worthy and I gave them keys to my house to carry-out work whilst I went on holiday. I had no concerns when I came back everything was as I left it.
DHILLON B Construction Ltd
Rating: 5 out of 5
Extension Builder in Downside
“Transforming your house into your dream home — with expert craftsmanship, on-time delivery, and a team you can trust.” Building better homes, one family at a time — trust us to make real Maximize Your Space, Maximize Your Home’s Potential” • “Specialists in Extensions, Conversions, and Renovations” • “Custom Builds to Suit Every Lifestyle” • “Turning Loft Space into Living Space” • “Renovate. Extend. Transform.”
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Latest review:
I was looking for someone reliable to do my kitchen to the required specifications and I must say I am very pleased with Dhillon construction who managed the whole project and my Kitchen looks the best part of my house. Full kitchen installation was done with flooring, tiling, skimming the wall, ceiling, electrical and plumbing and he also opened a new french door on my kitchen wall and closed the old door with great brickwork. Thankyou Baltej Dhillon and team.
Faron home improvements
Rating: 5 out of 5
Extension Builder in Downside
We are faron home improvements . We have a wealth of experience in the window industry . We under take conservatory’s , windows , doors , Bifolds , and facia and soffits . As well as much more .we offer pvc or aluminium products. We have a building division and have successfully completed 10 extensions in the last year . Patios and driveways are also services we offer .
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Latest review:
Windows & Doors (uPVC & Metal)- 3 Mar 2022
The work was carried out to a high standard. I was pleased with the work carried out.
Creative Arch Ltd
No reviews yet
Extension Builder in Downside
We offer a full design and build service, designing your scheme from initial concept to a fully costed design. Our in-house architectural design team tailor the design to suit your style and budget, and have the experience and knowledge to successfully navigate the pitfalls of individual boroughs’ particular planning departments. We specialise in new builds, Loft conversions, extensions and full home refurbishments.
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AQ Katana Ltd
No reviews yet
Extension Builder in Downside
I’m a fully domestic electrician, specialising in electrical installations, repairs, and upgrades for homes of all sizes. Whether you’re renovating, upgrading your fuse board, or simply need new sockets or lighting fitted, I deliver high-quality, safe, and tidy work at competitive prices
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S S Bhardwaj Construction LTD
No reviews yet
Extension Builder in Downside
At S S BHARDWAJ CONSTRUCTION LTD, we take pride in delivering high-quality building work with honesty, reliability, and attention to detail. Whether it’s an extension, renovation, or new build, we treat every project as if it were our own home—because we see our customers as part of our family. With a skilled team and a commitment to clear communication, we aim to make the building process smooth, stress-free, and tailored to your needs. Your trust means everything to us, and we’re here to build not just great spaces, but lasting relationships.
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R Hamandi Limited
Rating: 5 out of 5
Extension Builder in Downside
R.Hamandi Limited was established in January 2010 and firm in London, providing construction management, general contracting and consultant services. RHL specialises in construction and restoration of private and commercial sector in the heart of London including Residential refurbishment,Commercial,New build,Design and build, Basement construction, Kitchens specialists, Listed buildings, Sustainable buildings
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Latest review:
My colleague referred me to Raed who previously have had used R.Hamandi Ltd for construction work and they were very happy with the quality of service. Along with some other building company's last year I also contacted Raed for an estimate. Raed gave us a reasonable price with all the details of proposed work. He also explained about the possible options of how we could get the best value for our money. His professional and friendly advice helped us a lot to understand what exactly we needed and what was best for us to go ahead for our project. We decided to go ahead with R.Hamandi ltd. Raed gave us breakdown of the project and everything was documented. His support in communicating with council and planning related issues was valuable. All the planning permission requirements were followed. Presence of experienced and trust worthy staff including laborers, handymen, carpenters and painters really made it easy for me and family to be around and comfortable while they were working or to leave the house whenever we had to. Raed himself used to visit the site everyday to oversee the progress and used to discuss and take care of any possible issues. Raed's team used to turn up on time and the project was finished on time too. Even after the completion of the project staff at R.Hamandi ltd and Raed himself contacted us few times to find out if we're happy with the work carried out or if we needed any further assistance. Now we have a fully refurbed house with double side extension and loft conversion. Overall amazing service, professional, reliable and trustworthy. I recommend R.Hamandi ltd to everyone for an A+ service. Thanks,
ALB engineering services ltd
No reviews yet
Extension Builder in Downside
I am a hard working, honest individual. I am a good timekeeper, always willing to learn new skills. I am friendly, helpful and polite, have a good sense of humour. I am able to work independently in busy environments and also within a team setting. I am outgoing and tactful, and able to listen effectively when solving problems.
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Denis
Rating: 5 out of 5
Extension Builder in Downside
D
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Latest review:
Painting & Decorating- 5 Jul 2026
Good work

4.2

Top rated Extension Builders

Our Extension Builders in Downside, are rated 4.2 out of 5 based on 20 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Downside?

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

Find extension builders in Downside with MyBuilder

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

Step 2: Compare different extension builders in Downside

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

Step 3: Hire Downside extension builders with confidence

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

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

What to ask a Downside extension builder before hiring?

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

An extension builder in Downside 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 Downside 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 Downside?

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 Downside 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 Downside 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 Downside

Can an extension builder in Downside help with planning permission?

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

Many Downside 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 Downside help with materials and finishes?

Yes, most extension builders in Downside 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.