Extension Builders in St James

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (17 reviews)

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Some of our top rated extension builders in St James

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Rahul boxer
No reviews yet
Extension Builder in St James
HELLO! I'm Rahul Punia ,with a dynamic and innovative team BOXER's GROUP of skilled professionals committed to turning your houses into homes you've always dreamed of. With a wealth of experience, we specialize in a wide array of services from ground-breaking extensions 🔨to flawless plastering and paintwork 🏡 , sturdy roofing , precise brickwork🏠 ,⚡ seamless electrical and 🚿plumbing solutions , functional kitchen and 🛁bathroom fittings, robust flooring and innovative partitioning .
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Punjab home innovation ltd
No reviews yet
Extension Builder in St James
Punjab Home Innovation Ltd is a trusted West London building and home renovation company with over 10 years of experience. We specialise in bathroom renovations, kitchen fitting, loft conversions, house extensions, tiling, flooring, painting and full property renovations. We provide free quotations, honest pricing and high-quality workmanship. Serving Hayes, Hillingdon, Southall, Ealing, Uxbridge and surrounding areas. Our Skills & Experience • Home renovations & refurbishments • Extensions & conservatories • Plastering, painting & decorating • Flooring, tiling & carpentry • Electrical & plumbing coordination • General building & maintenance We work closely with our customers from start to finish, offering honest advice, clear communication, and no hidden costs. Customer satisfaction is our top priority, and much of our work comes from repeat clients and recommendations. Please view our portfolio to see completed projects including full refurbishments, feature walls, plastering work, and custom building solutions. 1: Reliable Builders in West London – Quality You Can Trust 2: Professional Home Renovation & Building Specialists 3: Experienced Local Builders – Honest Pricing, Quality Results
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SSCC
No reviews yet
Extension Builder in St James
Loft conversions, rear/side extensions, bathroom fittings, kitchen, Refurbishments ,garage conversion, electrical, plumbing, complete wiring Gas and electric certification.
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Simran
No reviews yet
Extension Builder in St James
All types of work undertaken Loft conversions, extensions, full refurbishments Driveways and landscaping
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R L MORGAN CONSTRUCTION LIMITED
No reviews yet
Extension Builder in St James
We undertake all types of construction work, we specialise in matching in extensions and loft conversions to the properties that we work on.
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Urban Planning & Construction Limited
No reviews yet
Extension Builder in St James
We focus on stress-free, high-value home renovations. Understanding the significance of this step, we provide tools for informed decisions. Our structured approach, with a dedicated team, ensures effective and efficient delivery of high-value projects. Reputation built on transparency, honesty, and commitment to excellence. From small remodels to large-scale renovations, we work closely with you to realize your vision on time and within budget. Contact us to start your dream home today!
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4AR Construction LTD
No reviews yet
Extension Builder in St James
4ar Construction Ltd are a trusted and professional company dedicated to the highest standards in every aspect of our trade, with over 6+ years experience. Plumber engineer services. We are based in Stratford. We undertake domestic plumbing, our services provide the safest solutions and the highest quality standard of work. Bathroom Refurbishment Bathroom renovation Plumbing Maintenance Radiator Installations Emergency Call-Out Home emergency Just some of our Services and Repairs: New build houses Extension and conversion Porches Tilling Radiator Installations Power Flush Tap Replacement All Leaks & Bursts Washing Machine/Dishwasher Installations Bathroom/Shower Installations Shower Pump installations Floor & Wall Tiling Outside Taps Stopcocks Plumbing, Bathroom refurbishment. And more... We consider no job too big or too small! Our aim to always exceed your expectations.
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GSK
No reviews yet
Extension Builder in St James
Hard working methodical tradesperson with a proven track record of large and small projects.
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Vb development
No reviews yet
Extension Builder in St James
VB development here to make your dream house.
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Prime brother
No reviews yet
Extension Builder in St James
We do excellente Extensions jobs with good price which makes your life easier with positive attitude. We make your life easy ( problem solving)
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B N CONSTRUCTION WISE LTD
No reviews yet
Extension Builder in St James
We are Experienced builder well equipped to take up New Build House and Flats, Loft Conversions, Side and Rear Extensions and general Renovation of a Property
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Preet builds
No reviews yet
Extension Builder in St James
Hello We do all type of brickwork,Paving and all type of building works
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HS Building
No reviews yet
Extension Builder in St James
i been working for 12 years. we always provide neat and clean service, everything should be in rule and regulated.
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Bespoke Dwellings Limited
No reviews yet
Extension Builder in St James
I’m builder with 15 years of experience in trade and we provide BESPOKE building services. We do all sort of home renovation, house extensions and complete remodel in house designs. References are available and previously finished recent jobs can be viewed.
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Harkiratkitchenandcupboard
No reviews yet
Extension Builder in St James
We are specializes in the installation of new kitchens,repair old kitchen and cupboard fitting. we understand the significance of selecting the right materials to enhance both the beauty and functionality of your space. Our company provide new kitchen solutions,from kitchen islands and cabinets to premium worktops and full kitchen fitting services available.
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BWB Builders
Rating: 5 out of 5
Extension Builder in St James
We specialize is all types of brickwork and landscaping, From garden walls to extensions, Patio’s/Steps/Repointing/Brick Resoration/Demoltion/Damp Proofing and much more. We take pride in are work and customer satisfaction is are number 1 priority. Every job is completed to the very highest standard to leave you with a professional job. No job too big or small. Get in touch for free quotations. Thanks
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Latest review:
Bricklaying- 9 Mar 2026
Ben was great at doing our job, he kept me updated evry day from start to finish and matched the brickwork exactly to what was already there. Great service and definately kneww what he was doing - thanks Ben for a great job...

4.1

Top rated Extension Builders

Our Extension Builders in St James, are rated 4.1 out of 5 based on 17 reviews from customers like you.

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

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 St James 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 St James who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in St James?

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

Find extension builders in St James with MyBuilder

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

Step 2: Compare different extension builders in St James

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

Step 3: Hire St James extension builders with confidence

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

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

What to ask a St James extension builder before hiring?

Before hiring an extension builder in St James or extension building company in St James, 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 St James?

An extension builder in St James 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 St James 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 St James?

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 St James 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 St James 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 St James

Can an extension builder in St James help with planning permission?

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

Many St James 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 St James help with materials and finishes?

Yes, most extension builders in St James 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.