Extension Builders in Greenford

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 Greenford

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DKSC Building Services Ltd
Rating: 4.9 out of 5
Extension Builder in Greenford
deals with various types of work. but mainly painting and decorating. I have 10 years of experience. performs work quickly and accurately.
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Latest review:
Bathroom Fitting- 16 Jun 2026
Daniel was responsive and patient with changing plans
Marius dumitriu
No reviews yet
Extension Builder in Greenford
Your builder is here
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MK London Builders Ltd
Rating: 4.5 out of 5
Extension Builder in Greenford
bathroom fitting, kitchen fitting, tiling, plastering, painting and decorations, roofing, flooring, gardening
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Latest review:
Handyman- 21 Sep 2018
Mentor is a very pleasant and professional person. He came at the agreed time to view the job required. He quoted a reasonable price and he came to do the job. I am pleased with the job and will highly recommend him and will definitely re-hire him as well.
H&J Properties 02 Ltd
Rating: 5 out of 5
Extension Builder in Greenford
H&J Properties is your friendly, reliable small team with over 10 years of experience in the building industry. We design, plan, build, and project manage, so you can rely on us for a full round of service. From floor and wall tiling to full kitchen and bathroom installations, we’ve got your home covered. We handle plastering, painting, drylining, insulation, and more with precision and pride. Need a loft, rear or basement extension, a new roof, or concrete work? No problem. Whether it’s bricklaying, basement waterproofing, or installing windows and doors, we bring craftsmanship and care to every job. Big or small, we build it right. Please message us directly for more project images.
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Latest review:
We have contracted H&J Properties for our house refurbishment in London. I was impressed with the team's professionalism and project management from start to finish. We had no plans or planning approved, so we wanted a design and build company who will be able to look after the project from start to finish. They did just that. Working with the architects and the planning application before starting the project planning. As always, there are, of course, unforeseen issues arising with the old houses in london but I could't be happier with the communication received from the team. Thanks for the great job.
Transhomes Limited
No reviews yet
Extension Builder in Greenford
Transhomes limited is a registered home improvement company offering range of services from extension to loft conversion. Our services includes extensions,loft conversions, kitchens and bathrooms, and all aspects of building work. We have public liability insurance and employers liability insurance
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c j randall and sons limited
Rating: 5 out of 5
Extension Builder in Greenford
Here at CJ Randall & Sons we have over 10 years' experience in the building trade, providing the local area and all over Surrey with professional, trustworthy building services for both domestic and commercial customers. With years of local experience and knowledge, you get the reassurance you need that the work will be carried out to the highest standard with service to match. Working closely and alongside with each customer to understand their exact want and needs, we always aim to be on time and to suit a budget for you. We have earned a high reputation as a reliable, friendly company that you can trust. Each contractor that works alongside us at CJ Randall & Sons, is fully qualified and insured and delivers on timekeeping, quality of work and value. CJ Randall & Sons provides a service you can rely on. Whatever your building needs –We help you get the best results, at the right price.
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Signature 1 Construction Ltd
Rating: 4.5 out of 5
Extension Builder in Greenford
Signature 1 Construction LTD is a family run business with over 25 years experience in the building industry. We specialise in extensions, loft conversions and full house refurbs. Every job we undertake we take great care of the clients house and are experienced project managers will look after you from start to finish.
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Latest review:
Extensions- 30 Sep 2025
Overall, I’m very pleased with the work Marin has carried out for us and I’m currently in the process of instructing him to do more work. Marin built a high spec cedar shed for us with electrics and plumbing, some brickwork and laid composite decking. Marin came across, honest and reliable, which in itself is rare. He was on site most mornings to make sure his tradesmen were on the right tracks. Like with a lot of these things there were some issues along the way and I was highly impressed by Marin’s ‘no quibble’ approach to rectify any problems. I myself have a high attention to detail and am quite indecisive (nightmare client) and Marin was happy to work with me with changes to the project without incurring extra costs.
SGB Water Engineering
Rating: 5 out of 5
Extension Builder in Greenford
SGB maintain an interactive IT process, to ease transparency and movement of information data, to all parties involved in any one project. We have a combined 25 years professional experience in the civil engineering / construction management. We are experts in water utilities management enabling us to offer a variety of services and solutions in this area.
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Latest review:
Plumbing- 9 Dec 2020
Work completed and problem has been resolved .
LEBELLE HERITAGE & RESTORATION LTD
Rating: 5 out of 5
Extension Builder in Greenford
Lebelle Heritage & Restoration Lebelle Heritage & Restoration is a professional building and construction company specialising in renovations, refurbishments, and heritage restoration. We take on all types of projects, from full property renovations and structural upgrades to detailed interior finishes and the careful restoration of period features. Our team is skilled in both traditional craftsmanship and modern construction methods, allowing us to deliver work that is reliable, high-quality, and built to last. Whether we’re restoring the character of an older property or breathing new life into a modern home, we focus on precision, honesty, and clear communication throughout every stage of the job. We pride ourselves on delivering clean, efficient, and well-executed work that meets the needs of our clients and respects the integrity of each building. At Lebelle Heritage & Restoration, we build, renovate, refurbish, and restore with a commitment to quality and long-term durability.
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Latest review:
After a previous contractor took our money and left our loft extension unfinished, we were devastated and worried about how we would ever get our home back to normal. Then Lewis from Lebelle stepped in and completely turned things around. Lewis was patient, understanding, and incredibly professional. He worked quickly, kept costs under control, and finished the loft extension to a standard we’re so happy with. The stress he took off our shoulders was unbelievable. We honestly can’t thank Lewis enough. If you’re looking for someone trustworthy, skilled, and genuinely caring, Lebelle is the company to call.
Domus Fortis Construction Group Ltd
No reviews yet
Extension Builder in Greenford
We are a construction company based in the heart of west London with 15+ years of combined construction experience
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Aulakh construction
No reviews yet
Extension Builder in Greenford
All kind of building work done
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PJP Builders Ltd
No reviews yet
Extension Builder in Greenford
As a builder I work 26 years, and 13 years in UK . My company is made of 7 hard working builders with experience that will provide the higest standards of work and job finished on time. Won’t leave the job unless the costumer 100% satisfied. We are specialist in new builds, complete refurbishment and renovation , extension, lofts,drive ways, gardens, patios and decorating. If your interested please give me a call and we can discuss your project or repair for free.Advices and free estimate
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Emam
No reviews yet
Extension Builder in Greenford
I'm hard worker reliable fast working and caring person who always provide first class service to customers
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Babylon design studio ltd
No reviews yet
Extension Builder in Greenford
BDS is a high-end studio specialising in the Design & Build industry. We are a team of specialists designers and engineers qualifying in Architecture, Civil Engineering, Interior Design and Project Management and have years of experience in running residential and commercial projects, making sure they comply with Building Regulations, Planning Permission and local authorities.
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Omex Build LTD
No reviews yet
Extension Builder in Greenford
Omex Build is a London-based construction company specialising in residential building, refurbishments, and conversions. We combine skilled workmanship with transparent project management to deliver homes that feel refined, functional, and tailored to each client’s needs. Our team is known for professionalism, attention to detail, and a commitment to completing every project to the highest standard.
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B&D Construction London Ltd
Rating: 5 out of 5
Extension Builder in Greenford
Hi Our company undertake jobs ,Loft Conversion, Extensions, Carpentry, Gardens, Plumbing/Electrical , Plastering and Decorating,
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Latest review:
We’ve had multiple jobs done by Silviya. The first was a small extension and downstairs and partial upstairs refurbishment with new kitchen and 2 bathrooms fitted. This large job was completed within 16 weeks and looks exactly as we hoped. Given the extent of works we moved out for the build. The second was the construction of an outbuilding and garden redesign (patio and astro fitted). Again the results are great. We lived in during this project and I worked from home without disturbance. The latest has been the re-fit of new windows, front door and fixing the front render. Again, the results are very professional and minimal disturbance while the work took place. Will definitely use him and his team again, should we need any more building work and recommend them to others

4.1

Top rated Extension Builders

Our Extension Builders in Greenford, 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 Greenford?

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

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

What are the hourly rates of extension builders in Greenford?

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

Find extension builders in Greenford with MyBuilder

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

Step 2: Compare different extension builders in Greenford

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

Step 3: Hire Greenford extension builders with confidence

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

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

What to ask a Greenford extension builder before hiring?

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

An extension builder in Greenford 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 Greenford 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 Greenford?

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 Greenford 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 Greenford 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 Greenford

Can an extension builder in Greenford help with planning permission?

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

Many Greenford 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 Greenford help with materials and finishes?

Yes, most extension builders in Greenford 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.