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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STUDIO20 GROUP LTD
Rating: 5 out of 5
Extension Builder in Downside
Studio 20 Architects is a vigorous and contemporary architecture firm based in Richmond, yet operating across London and South East England and covers all London and Surrey. We offer a full range of services including; *Architectural Services *Planning Application Services *Building Regulation Drawings *Structure Engineering Services *Extension *Loft Conversion *Project Management *Flat Conversion *HMO *Change of Use *New Build House *Interior Architecture & Design Services
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Latest review:
Architecture- 6 Jun 2021
Nadir is just the most ideal artitech we want! He is polite, offer tips, smooth communication thru, very professional. We already ask him to work together on next project. Highly recommended to all.
Matthews Project Services LTD
Rating: 4.6 out of 5
Extension Builder in Downside
Hello, I’m Leigh Matthews, Managing Director of Matthews Project Services Ltd (MPS). We’re a Sutton-based company specialising in high-quality construction and project management services across London and the South East. With over 17 consecutive years of industry experience, we pride ourselves on delivering reliable, efficient, and cost-effective solutions whether it's residential refurbishments, commercial fit-outs or infrastructure works. We’re committed to clear communication, professional standards, and ensuring every project is completed to the highest level of satisfaction. No job is too big or small, and we’re always happy to offer advice or a free quote.
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Latest review:
Restoration & Refurbishment- 2 Apr 2026
Really pleased I chose Leigh Matthews for this job. We were taking over a building that was unoccupied for 18 months and there were some issues with that, The team were excellent, and they finished the 4-week job on time, and right on budget. They were helpful and considerate and left the premises clean and tidy. They were also able to help out with some problems with the plumbing that were not in the original scope. I loved the way they did the estimate and the invoicing. Breaking all the items down into the individual tasks and at the end of each week, itemising which tasks were complete and a %age on those in progress. I would not hesitate to employ them again
Dan West
Rating: 5 out of 5
Extension Builder in Downside
I'm carpenter/builder, have been working for construction companies with good reputation for over 10years. No job too small from tiling and plastering to roofing and kitchen fitting.
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Latest review:
Carpentry- 19 Jun 2019
The job actually got bigger as the time went on, once I’d removed the old wardrobes the walls needed plastering and the laminate flooring needed extending, so a “simple boxing in job” became a nightmare! Dan’s professional approach was unquestionably and his ability to be able to fulfil all of the requirements was brilliant. The room and surrounding area was left immaculate at the end of each day and he was always prompt arriving in the morning. The finish of the work was 1st class and I can’t recommend him enough, if any one would like to see his work, then their more than welcome to view.
Lh home improvement
No reviews yet
Extension Builder in Downside
We are a family run buisness which take pride on what we do and take on any job from putting up a fence to whole house refurbishment
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Angle Construction
Rating: 4.7 out of 5
Extension Builder in Downside
We have been in the construction business for over 15 years doing all sorts of works, from minor works to full home constructions. No job to small no job to big. We work in and around London
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Latest review:
Windows & Doors (uPVC & Metal)- 28 Jan 2026
Very unhappy with how things went with Angle Construction overall. Poor comms during the transaction was the first red flag - no communication for 2 days the moment money was sent, however afterwards received an apologetic call - parts ordered and arrived in due course. Andrei turned up, and got to work on removing the old gate, but then started shaving down the post without saying anything -we were told after that the posts were not level. Eventually he said the door would need to be cut, which we agreed to. The door and posts were both cut to fit, but massive gap left at the bottom, and only half of the door fittings and no handles were installed! In addition, where the door was cut and the wood shaved made, a lot of mess was left all over the garden furniture and patio floor. Shocked at the lack of care and professionalism. He was clearly agitated and in a rush to leave. We have a working back door, but it looks like a real botched job. Not happy, and I would not recommend.
KT5 Construction Limited
No reviews yet
Extension Builder in Downside
When it comes to construction we believe there’s no ‘one size fits all’, we work on both large & small projects with the same professional approach to both. Whether you're a homeowner or property developer, we understand how to help you achieve your vision. With careful project planning our professional team will communicate throughout the process, ensuring we adapt to our client wants and needs. You can trust us to deliver on time and on budget at a high quality designed to impress and last. To ensure a successful project outcome, our company and project management team will fulfill the following roles and responsibilities: 1. **Company Responsibilities**: - Provide skilled laborers, builders, contractors, and tradespersons. - Oversee construction activities, including scheduling and progress tracking. - Ensure compliance with quality standards and building codes. - Manage day-to-day site operations. 2. **Project Management Team Responsibilities**: - Serve as the central point of contact for all project-related matters. - Develop a comprehensive project plan. - Coordinate activities and schedule adherence. - Facilitate communication and collaboration among stakeholders. - Manage procurement and vendor contracts. - Monitor project progress and mitigate any risks or issues. - Provide regular progress reports and updates. - Ensure compliance with safety regulations and quality standards. Additionally, our project management team will be responsible for managing all purchasing and subcontractors. We will employ a systematic approach to vendor selection, procurement, and contract management, ensuring transparency and optimized costs. This will allow us to streamline the process and ensure that high-quality materials and services are obtained at competitive prices.
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Alex Kane carpentry
No reviews yet
Extension Builder in Downside
Alex Kane carpentry offers expert carpentry services across London and Surrey. Whether you need essential first fix structural work or exquisite second-fix installations such as stunning kitchens, beautiful bathrooms, and unique bespoke wardrobes, our team deliver exceptional results. We also bring valuable experience in general building practices such as steel installations and concrete foundations, ensuring a seamless and reliable service from start to finish.
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Brockandsons
Rating: 5 out of 5
Extension Builder in Downside
Family run business 22 years in the building business All types of building from little jobs to big jobs Friendly and prompt service.customer always Comes first.
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Latest review:
Bricklaying- 11 May 2019
Great job and good quality. All has been done as agreed. Trustworthy, always on time and get the job done ! I will use again Thanks a lot
HNM BUILDERS
No reviews yet
Extension Builder in Downside
At HNM BUILDERS, we are dedicated to delivering high-quality construction and building solutions tailored to meet the unique needs of our clients. With a strong foundation in craftsmanship, reliability, and integrity, we specialize in residential, commercial, and renovation projects of all sizes. Our experienced team works closely with clients to ensure every detail is executed to the highest standard. Whether you’re building your dream home, expanding your business space, or remodeling an existing property, we bring expertise, transparency, and a commitment to excellence to every job. Let us help you build with confidence.
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JRS Carpentry and Construction
Rating: 5 out of 5
Extension Builder in Downside
Hi, I'd like to welcome you to JRS Carpentry And Construction. AS a company we always want the client to be happy with work quoted for and works completed. No job is too small and we are always happy to help with advise. We pride ourselves with nothing less than a high quality finish in every job we do.
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Latest review:
Carpentry- 5 May 2018
james arrived on time on the agreed date . did an excellent job ! very happy indeed with James - would ask him to work for me again anytime. . very neat and tidy. nice guy too ...
M Klue Carpentry
No reviews yet
Extension Builder in Downside
A well and truly established carpenter with over 20years experience . No job to small or to big .
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First Choice KB Constructions Ltd
Rating: 5 out of 5
Extension Builder in Downside
At First Choice KB Construction Ltd, we pride ourselves on being your go-to solution for home improvements projects. With a wide array of expertise in house extensions, refurbishments, loft conversions, and the renovation of bathroom and kitchens, we’re fully equipped to tackle diverse projects. Our services span across various aspects including brickwork, plumbing, electrical, and more, ensuring a comprehensive approach to every job. Our team boast over a decade of experience in the field, ensuring that we deliver results that stands the test if time. At First Choice, our goal is clear: to provide top-notch quality work that lasts, while adhering to agreed-upon timelines. We prioritize flexibility to accommodate our customers’ unique needs and preference. No project is too small for us. We're dedicated to delivering excellent service, ensuring that our clients' needs and requirements are not just met, but exceeded. Customer satisfaction is our ultimate priority.
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Latest review:
Extensions- 30 Jun 2024
Absolutely brilliant from start to finish. Customer service is A+ Very happy with the fitted wardrobes and work done.
LG Construction & Design UK
Rating: 5 out of 5
Extension Builder in Downside
LG Construction & Design Uk is a family business in London.We pride ourselves on high quality workmanship and customer satisfaction.We believe in keeping the customer happy and providing them a great service and high quality with competitive price. LG Construction £ Design UK - Building your dream
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Latest review:
Extensions- 13 Jun 2020
Carlos and Luzianna did our kitchen extension in 2017 and we were very pleased with the quality of the work they did. We hired them again in 2019 to redo our living room and front garden. Again we were pleased with the result. In both cases we were living in the house during the construction and they did everything they could to be considerate and clean. We would definitely recommend them.
JRS Builders Ltd
No reviews yet
Extension Builder in Downside
JRS Builders Company is a premier construction company that has been providing top-quality construction services for over a decade. With a team of highly skilled and experienced professionals, we are dedicated to delivering exceptional craftsmanship and outstanding customer service to our clients. Our commitment to excellence has earned us a reputation as a trusted and reliable partner in the construction industry. Whether it's a new home construction, renovation, loft coversion, extension, driveway & patio, bathroom & kitchen refurbishment or remodeling project, our team has the expertise and resources to bring your vision to life. Contact us today to learn more about our services and how we can help you with your next project.
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Joel Mitchell’s Brickwork and Refurbishments
No reviews yet
Extension Builder in Downside
Introducing Joel Mitchell Brickwork & refurbishment's Excellence in Bricklaying Are you in need of professional and reliable bricklaying services? Look no further! We are here to transform your vision into reality. With our exceptional craftsmanship and unwavering commitment to quality, we are the premier choice for all your bricklaying needs. Why choose Joel Mitchell Brickwork and Developments? 1. Experience and Expertise: Our team of skilled bricklayers brings years of experience to every project. We have successfully completed numerous residential and commercial projects, honing our skills and mastering the art of bricklaying. bricklaying. 2. Uncompromising Quality: We never compromise on the quality of our work. We understand that every brick contributes to the overall structure's strength and aesthetics. That's why we use only the finest materials and employ meticulous techniques to ensure flawless results. 3. Attention to Detail: We believe that the beauty lies in the details. Our craftsmen pay close attention to every aspect of the bricklaying process, from precise measurements to perfect mortar joints.
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RD Construction
No reviews yet
Extension Builder in Downside
RD Construction is a growing business with 11 years experience in the construction industry. We pride ourselves on customer satisfaction and value for money. Using a small but highly skilled team we work to the highest of standards. We undertake a wide range of projects from bathroom refits to large extensions.
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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.