Extension builders in Smithfield

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (18 reviews)

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Some of our top rated extension builders in Smithfield

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Star building and construction ltd
Rating: 5 out of 5
Extension Builder in Smithfield
We have wide range of tradesmen available to carry out all different kind of jobs from Installing floors, building an extension, loft conversions, new builds and house renovations. We are dedicated to ensure that all our work meets the standards of our clients, hence why all our tradesmen are handpicked for each job. We thank you in advance for your consideration and welcome you to look through our portfolio. You
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Latest review:
New extension, kitchen, shower room, flooring, fiber glass roof, roof light, new electrics, plumbing, boiler installation, removal of chimney, rear patio, soakaway, painting and decorating Satnam has exceeded our expectations in carrying out the complete job to our satisfaction within the agreed time to a very high standard. We are extremely pleased with his work. Satnam helped us select good quality products from suppliers for much less cost than if we were to source them ourselves. He was honest, courteous, professional, flexible, open to changes and made suggestions to improve the overall look. He even passed on his builders' discounts to us. We highly recommend this ambitious young builder who has excelled in the trade. We wish Satnam and his team the very best.
Dansonsconstruction
New on MyBuilder
Extension Builder in Smithfield
Hello, my name is Daniel, I'm builden construction, specialist in: plaster, painting and decorator, I also work with tiles and foundations, construction in general, you don't have to look for someone else, I'm the builder you need, call me that you don't regret it!
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Mikheil Gugunishvili
No reviews yet
Extension Builder in Smithfield
I have experience 18 years
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BOZTECH Building Services and Construction Limited
No reviews yet
Extension Builder in Smithfield
Hi this is Josh.
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Kastrati Bricklaying
Rating: 5 out of 5
Extension Builder in Smithfield
Kastrati brickwork offer the best quotes in brickwork,blockwork,patio slabs,blocks paving and etc
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Latest review:
Bricklaying- 20 Jul 2026
AN EXCELLENT BUSINESS, PROMPT AND EFFICIENT THANK YOU SO MUCH
Remdraly Design Ltd
Rating: 5 out of 5
Extension Builder in Smithfield
Remdraly Design Ltd — 25+ years of carpentry & joinery expertise, trading since 2015. We deliver kitchens, lofts, flooring, extensions and full refurbishments across East London, for domestic and commercial clients. Reliable, professional craftsmanship — done right, every time.
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Latest review:
Decking- 21 Aug 2020
High quality workmanship - friendly and professional. Would highly recommend.
Andrzej Truchanowski
No reviews yet
Extension Builder in Smithfield
I’ve been in the industry for 20 years. I specialise in construction, steel work, extensions, basement conversions, landscaping, fixing fences etc. I view myself a professional builder and a handyman happy to help others.
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11120594
No reviews yet
Extension Builder in Smithfield
Hi! I do drylining Fixer Interiors,I have me own Company and faster team with good quality of work.I'm available any time for you! 🙌
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RD PAINTING & RENOVATIONS LTD
No reviews yet
Extension Builder in Smithfield
RD Painting & Renovation provides professional painting and renovation services for homes and businesses. We handle everything from interior and exterior painting to repairs and remodels, always focusing on quality, reliability, and customer satisfaction. Our goal is to make every space look its best and meet the unique needs of each client.
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Lubjana meshi
New on MyBuilder
Extension Builder in Smithfield
Kabashi Group provides reliable, professional and high-quality building services for homeowners and businesses across London and surrounding areas. We specialise in extensions, loft conversions, renovations, refurbishments, waste clearance and general building works. We take pride in delivering quality workmanship with attention to detail on every project, whether it’s a small improvement or a complete property transformation. We understand that building work is a major investment, so we focus on clear communication, honest pricing and keeping our customers informed from start to finish. Our team works efficiently, safely and respectfully, treating every property as if it were our own. We aim to make the entire process as straightforward and stress-free as possible while delivering results that meet our customers’ expectations. Choose Kabashi Group for a reliable service, quality workmanship and a professional approach. Contact us today for a free quotation and let us help bring your building project to life.
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HWB construction
Rating: 5 out of 5
Extension Builder in Smithfield
Our executive team's come from diverse backgrounds such as design, engineering and management. Dedicated and focused, our vision has always been to be a dynamic and innovative organisation. The joint experience of our executive team is well over 20 years and provides us and our partners with a significant level of expertise which is applied to each project. HWB’s unique approach means we can be flexible and bespoke in all we do when delivering excellence in the construction industry.
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Latest review:
Extensions- 28 Oct 2018
We appointed HWB to carry out a full refurbishment on our house, this involved re-gutting the interior and building an extension and loft conversion plus some landscaping in the garden. We spoke to many builders but finally appointed HWB based on their previous projects and professionalism. Appointing builders for any work is always difficult however we are delighted that we went with HWB. Throughout the project they have demonstrated high levels of professionalism, were very organised and worked to very high standards. They were collaborative throughout the whole project and kept us informed at every stage. As the project developed there were some changes made and HWB were flexible and open to new instructions made by us, as well as giving us valuable advice. Farag, Ayoub and the HWB team were always available to answer any questions and provided us with constant feedback on progress as well as identify new solutions to aid the development. They have a great team of workers who work to a high standard and are supervised throughout the project. We made the right decision going with HWB Construction and have no hesitation in recommending them.
Kairos Construction Ltd
No reviews yet
Extension Builder in Smithfield
We undertake all kinds of renovations and new build extensions. We specialise in bathrooms and kitchens with over 15 years working experience in the industry. Myself and my multi skilled builders are always polite and treat our customers with respect and are always willing to get the job done.
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G lofts (gra)
Rating: 5 out of 5
Extension Builder in Smithfield
G LOFTS is part of G R Associates building contractors and as been trading for approx- 36 years + within the construction trade Most types of works is under taken from kitchen fitting bathroom fit outs and loft and flat conversion.
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Latest review:
Extensions- 8 Sep 2021
Done an amazing job on my outer building. George and his son Steven went the extra mile. Will definitely be using them for all the house works in the future. Very knowledgeable and honest. Would highly recommend GRA.
ALTROBUILDERS LTD
No reviews yet
Extension Builder in Smithfield
Whether you're looking to build your dream home, renovate a commercial space, or undertake a large-scale construction project, we have the expertise and experience to exceed your expectations. With more than 10 years of experience in the industry, we complete every project professionally, on time and in collaboration with the needs and ideas of property owners
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Ava Constructions & Decors
Rating: 4.9 out of 5
Extension Builder in Smithfield
Ava Constructions & Decors Ltd is a UK-based construction and renovation company committed to delivering top-quality craftsmanship and reliable project management. We specialise in full refurbishments, extensions, bathroom and kitchen installations, and commercial fit-outs — always tailored to the client’s vision and delivered to the highest UK building standards. With a keen focus on transparency, timelines, and customer satisfaction, Ava Constructions has earned the trust of homeowners, investors, and developers alike. Punctuality and completion of work on time are a priority .Our team always respect the client wishes and work with them to achieve the best possible results to their satisfaction. Thank you in advance
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Latest review:
Extensions- 16 Apr 2026
I would not recommend this builder based on my experience. Instead of using crushed concrete they used soil to fill the house flooring for underfloor heating. 1 The project suffered from poor communication, repeated delays, and a lack of clarity around responsibilities. There were serious issues with the foundation works, which failed Building Control inspection and now require remedial engineering input before works can proceed. The site was also left incomplete and not in an acceptable condition. Despite substantial payments being made, key documentation, technical responses, and follow-through were lacking, leaving me to resolve major compliance and structural issues independently. My experience has resulted in delay, additional cost, and considerable stress. I would strongly advise others to ensure there is a detailed written contract, clear scope of works, and defined accountability
Caush Hysa
No reviews yet
Extension Builder in Smithfield
Hi my name is Caush , I am 35 years old . I live in London since 2011 and I have been working in construction for almost 15 years. I can do roofing, extension, carpentry, first fix carpenters. I live in North London.
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4.6

Top rated Extension Builders

Our Extension Builders in Smithfield, are rated 4.6 out of 5 based on 18 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 Smithfield?

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

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

What are the hourly rates of extension builders in Smithfield?

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

Find extension builders in Smithfield with MyBuilder

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

Step 2: Compare different extension builders in Smithfield

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

Step 3: Hire Smithfield extension builders with confidence

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

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

What to ask a Smithfield extension builder before hiring?

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

An extension builder in Smithfield 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 Smithfield 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 Smithfield?

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 Smithfield 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 Smithfield 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 Smithfield

Can an extension builder in Smithfield help with planning permission?

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

Many Smithfield 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 Smithfield help with materials and finishes?

Yes, most extension builders in Smithfield 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.