Extension Builders in West Smithfield

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in West Smithfield

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SONIM
Rating: 5 out of 5
Extension Builder in West Smithfield
SONIM LTD is a South London–based construction and refurbishment company specialising in high-quality residential projects. We deliver loft conversions, home extensions, kitchen and bathroom renovations, flooring installation, plumbing, and full property refurbishments with a strong focus on craftsmanship, attention to detail, and reliability. Whether you're expanding your home, upgrading your kitchen or bathroom, or undertaking a complete renovation, our experienced team is committed to delivering exceptional results — on time and within budget. At SONIM LTD, we believe in clear communication, transparent pricing, and building long-term trust with our clients. Your vision is our priority.
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Latest review:
Restoration & Refurbishment- 3 Nov 2024
Ion and his team were great, they worked really hard and the final result is fantastic, we are really pleased and will use them again! Ion gave lots of helpful advice.
L&G Informations Ltd
No reviews yet
Extension Builder in West Smithfield
L&G Installations Limited have been established for 14 years. Our main objective is to provide a quality service for our customers. Pride quality work which led to the expansion of the company and employed up to 12 professional fitters/ engineers. The fitters & engineers are trained to a high standard, investing time and commitment on Velfac /Rational Dovista Group & other double glazing products.
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Isac Mihai
Rating: 5 out of 5
Extension Builder in West Smithfield
Responsible person, on time and attention to detail. Over 20 years of experience in all domains.
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Latest review:
Bathroom Fitting- 28 May 2025
I am extremely happy with the job Isac has done. We are so very lucky to have found Isac to do our home. At the time of the works we were expecting a baby and Isac worked night and day to make sure our home was ready in time for our sons arrival. Without him we would have been screwed. Isac’s work is extremely professional. He has high standards and is very skilled. He’s honest, direct and respectful. I now consider Isac as a friend. He’s come back a few times since the works to check in and is always on the phone is you have any follow up queries. I would recommend Isac to anyone who has work they needed done. Thank you Isac!!!
Himanshu
No reviews yet
Extension Builder in West Smithfield
Whether you're looking to modernize your home's exterior, improve insulation performance, or create a stunning brick-effect finish, we provide tailored solutions that combine aesthetics, durability, and long-term value. Contact us today to discuss your project and arrange a free consultation.
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Erik Novak
Rating: 5 out of 5
Extension Builder in West Smithfield
I’m mostly working on my own. Always discussing any work or changes with customers before going ahead with it.
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Latest review:
Handyman- 24 Apr 2026
Helped us move a large shed. Turned up on time, made himself available, and handled a tricky move with care. Easy to work with and good communication throughout.
Bespoke Made Limited
No reviews yet
Extension Builder in West Smithfield
With 20 years of experience in bespoke made windows and doors, our company is dedicated to delivering top quality products tailored to your unique needs. We pride ourselves on being professional and friendly, ensuring every project is completed on time without compromising craftsmanship. Trust us for exceptional service and custom solutions that enhance your space. Fully insured and Fensa registered.
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Bakar building services Ltd
New on MyBuilder
Extension Builder in West Smithfield
🏗️ Bakar building Services Ltd! Construction & Reno > We Do It All: ✅ Loft Conversions & Extensions ✅ New Builds & Brickwork ✅ Kitchens & Bathrooms ✅ Full Electric & Heating ✅ Plastering & Roofing 🏘️ Domestic & Commercial Specialists
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Plasterer
No reviews yet
Extension Builder in West Smithfield
GABY Plastering LTD
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SVR CONSTRUCTION
No reviews yet
Extension Builder in West Smithfield
I am a construction engineer
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Vig projects
New on MyBuilder
Extension Builder in West Smithfield
Hi there! I provide high-quality cleaning services focused on reliability, trust, and attention to detail. I am fully trained in efficient deep-cleaning methods, stain removal, and grout sanitation. Whether you need regular weekly upkeep, a deep spring clean, or an end-of-tenancy refresh, I bring the right skills and a positive attitude to every job. I look forward to making your home shine!
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T&S Electrical And Property Services Ltd
Rating: 5 out of 5
Extension Builder in West Smithfield
WE ARE AN ELECTRICAL & HOME IMPROVEMENT COMPANY WORKING THROUGHOUT GREATER LONDON, PROVIDING SERVICES TO PROUD HOMEOWNERS IN THE LOCAL AREA.
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Latest review:
Electrical- 27 Jan 2026
Taf was great, I wish I had gone to him and not to openrent as I initially did for my Eicr and essential works! Big recommend!
Mailm limited
No reviews yet
Extension Builder in West Smithfield
We provide complete building solutions on both Residential and Commercial sites and smaller domestic builds. Our valuable experience is shown in all aspects of our work.
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Elvis builds
No reviews yet
Extension Builder in West Smithfield
At Elvis Build, every wall, extension, and project is built with pride and precision 🧱 No shortcuts – just solid, clean brickwork done the right way 💪 From garden walls and extensions to repairs and repointing, I make sure every job is straight, level, and built to last. If you’re after reliable work with proper attention to detail, give me a shout – happy to chat and give a free quote 🔨 Elvisbuilds .uk @ Gmail .com 📩 DM for enquiries or quotes #Brickwork #ElvisBuild #LondonBuilder #Bricklayer #QualityWork
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bns construction ltd
Rating: 4.5 out of 5
Extension Builder in West Smithfield
Hi me and my partner are very experienced, time served, clean, realiable, and very professional. Carpenter and painter and decorator who are willing to meet your demands of the job, price it reasonably and complete it with a high standard finish leaving you completely satisfied!!
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Latest review:
Carpentry- 12 Dec 2014
Work was completed the next day. Many thanks and will use again. Xx
Skyline Dimensions Building Ltd
No reviews yet
Extension Builder in West Smithfield
Skyline Dimension Building Ltd is a premier construction company dedicated to transforming visions into reality for both residential and commercial properties. With an unwavering commitment to quality, craftsmanship, and client satisfaction, we specialize in building stunning homes and functional office spaces that reflect our clients’ dreams and aspirations. At Skyline Dimension Building Ltd, we understand that your property is more than just a structure; it’s a space where memories are made and businesses thrive. Our purpose is to provide unparalleled construction services that help clients create their ideal environments. Whether it’s a cozy home or a bustling office, we pride ourselves on being a trusted partner in every stage of the construction journey. We offer a comprehensive range of construction services tailored to meet the diverse needs of our clients, including: - Residential Building: Creating dream homes that encapsulate personal styles and functional needs. - Commercial Building: Developing dynamic office spaces designed for productivity and collaboration. - House Extensions
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BRITLIT CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in West Smithfield
Building construction work, all building work undertake. Experience 20 years
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Latest review:
Conversions - General- 23 Nov 2019
Saulius was excellent. Saw the job that needed doing, we thought it looked complicated and were worried about the costs. However, him and his team dealt with it quickly and made a complex job look

4.1

Top rated Extension Builders

Our Extension Builders in West Smithfield, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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What types of services are offered by local extension builders in West 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 West 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 West Smithfield who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in West Smithfield?

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

Find extension builders in West Smithfield with MyBuilder

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

Step 2: Compare different extension builders in West Smithfield

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

Step 3: Hire West Smithfield extension builders with confidence

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

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

What to ask a West Smithfield extension builder before hiring?

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

An extension builder in West 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 West 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 West 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 West 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 West 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 West Smithfield

Can an extension builder in West Smithfield help with planning permission?

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

Many West 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 West Smithfield help with materials and finishes?

Yes, most extension builders in West 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.