Extension Builders in Northolt

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 Northolt

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Davies Construction
Rating: 5 out of 5
Extension Builder in Northolt
we are a genral building company specialising in home extensions brick work and ground work i have been established for 15 years i am also a member of the trust mark we are an old school type of firm with good quality tradesmen we turn up on time and keep a clean and tidy site we bring along our own kettle to make tea so you wont have to worry about that A portable loo will be there as well i hope this has been of help and look forward to hearing from you
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Latest review:
Tony & Nicola Nugent 7 Bramley Gardens South Oxhey Hertfordshire WD196YD 07892 683 819 Whilst requesting quotations from contractors we came across Martin davies and requested if he could visit and quote us for a single floor extension. As this was a big deal for us financially I needed to make sure I was doing the right thing and ended up getting around 7 quotations from different builders. Martins quote was very competitive and after meeting him we decided to go with him. For us it was a great move especially as we have never done anything like this before. Martin from the start has been great, he kept us up to date all the way through with what the next step is and what are options were whilst giving us ideas from his experience and knowledge, nothing ever seemed to be too much trouble, whether it was myself or my wife asking for additional bits or even rescuing our cat from the house roof ! The team Martin uses are also brilliant, really friendly and genuinely nice guys, Tom the Electrician was brilliant and again nothing was too much trouble. I have quite a few friends who also work in the building trade and all have commented on Martins work that it is done to a high standard, this includes my father who was a builder for over 30 years. I would highly recommend Martin and certainly will be using him in the future for more works, I’m more than happy to be contacted for further information, also happy if you would like to visit and take a look yourself!
ELB Construction services LTD
Rating: 5 out of 5
Extension Builder in Northolt
Established, respectable construction company which specialises in all aspects of building. we pride ourselves on giving clients a personal touch. Seeing you’re project through from getting planning permission to completing works to a hi spec finish. new builds loft conversions house extensions refurbishments Basements All type of general building undertaken
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Latest review:
Extensions- 23 Dec 2022
ELB Construction completed some major garden works for me and constructed a garden office. It was a big piece of work with a lot of earth moving, significant foundations and a lot of brickwork. The ELB team, specifically Jimmy the site manager, were fantastic, always giving me the right advice about things I was not knowledgeable about, always focussed on a quality finish and flexible when we had some challenges with our neighbours. The finish is great, communication was always open and honest and they were very competitively priced. My brother in law is in corporate construction and was specifically very impressed with the quality of the brickwork that Jimmy and the team produced. Thank you to the whole team!
CSN construction 4u LTD
Rating: 5 out of 5
Extension Builder in Northolt
CSN Construction 4u Ltd – Building Your Vision, Brick by Brick! 🏡 At CSN Construction 4u Ltd, we specialize in bringing your dream home projects to life. From house extensions to side extensions, and everything in between, we handle every project with care, expertise, and a commitment to excellence. 🔨 Our Services Include: Home Extensions Side Extensions Loft Conversions Renovations & Refurbishments General Construction Services Whether you're looking to expand your living space, enhance your property’s value, or create something entirely new, our team of skilled professionals is here to make it happen. 📞 Contact us today to discuss your project and get a free quote! Let’s turn your ideas into reality. 👉 CSN Construction 4u Ltd – Quality You Can Trust, Results You’ll Love!
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Latest review:
Extensions- 15 Dec 2025
Very happy with Csn Construction, he responded quickly and started the work quickly, within a week he managed to start the work and complete it! Very resonable price, I highly recommend!
Indrit
Rating: 5 out of 5
Extension Builder in Northolt
kitchen fitting-painting end decorations- renovations ol the house
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Latest review:
Decking- 7 Jun 2022
1000 stars!!! I have never, ever, seen a team work as professionally, quickly and expertly as what these guys did. They laid a whole 6x3 decking in 2 days. They worked non stop and went well above and beyond expected. Will never use anyone else for any work ever again. So glad I found Indrit!
A1 home improvement
No reviews yet
Extension Builder in Northolt
Dear customer We doing everything with very proficiency and easy way where we can explain everything to clients very well We managed our all work and sites comples on time and with in our client budget Achieving 100 % of success rate Best wishes for all client
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Majha construction ltd
No reviews yet
Extension Builder in Northolt
Majha construction ltd is based in west London, we are group of 5-6 workers, each one is specialist in its own field. We had experience over 10 years We provide best service at good prices.
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Loft and refurbished house
No reviews yet
Extension Builder in Northolt
I’m a reliable construction worker with 4 years’ experience on residential and commercial sites, strong knowledge of site safety procedures, and a proven record of finishing projects on time while keeping workplaces safe and tidy. I am multi skilled worker i do plumbing, skimming,flooring, tiles and electricity One think more i am doing my job yourself and also think about customer trems and conditions and we dont do any rush on a job
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WHITE FEATHERS CONSTRUCTION LTD
No reviews yet
Extension Builder in Northolt
White Feathers Construction is a trusted London-based building company carrying out all aspects of construction work to the highest standards. From home extensions and loft conversions to full refurbishments and new builds, our experienced team delivers reliable workmanship and honest service on every project. We take pride in turning our clients’ ideas into solid results — safely, efficiently, and with attention to every detail. At White Feathers Construction, quality and customer satisfaction are at the heart of everything we do. Whether you’re improving, extending, or starting from the ground up, we’ll ensure your project is built to last.
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Mantek Corporation Limited
No reviews yet
Extension Builder in Northolt
Construction Design & Build (Builder)
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Singhs Construction Ltd
No reviews yet
Extension Builder in Northolt
I always provide the best service 24/7 with an affordable quote. My team is always on the move making customers happy, no matter what the job or query is… we are able to fix it.
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Samraath Roofing Ltd
No reviews yet
Extension Builder in Northolt
Hi ,my name is kiranjot kaur I’m the director of this company,,,me and my husband do work together..i do all the office and online work and my husband do the loft conversion and all building work…we are 5 team members work together,,and we have 12 years of work experience….we do all the jobs on reasonable prices with good work
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Bains Brothers Construction LTD
No reviews yet
Extension Builder in Northolt
Hello, we are Bains brothers, we don't just build structure, we build relationship. we always tell our new costumer to go see our jobs which we have finish and speak to our costumers about our work.
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APOLLO BUILDER LTD
No reviews yet
Extension Builder in Northolt
we perform builders works such as: Bathroom Fitters, Carpenters & Joiners, Extension Builders, Flooring Fitters, Heating Engineers, Insulation Installers, Kitchen Fitters, Loft Conversion Specialists, Painters & Decorators, Plasterers, Plumbers, Tilers.
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Cgk construction
No reviews yet
Extension Builder in Northolt
I am doing building work from last 15 years. I am doing all the work professionally. We will provide you best quality of work.
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Km Building Specialists Ltd
Rating: 3 out of 5
Extension Builder in Northolt
KM Building Specialists is dynamically developing company created by people with passion. Our mission is professional advice, meeting expectations and, as a result, obtaining satisfaction of all our clients. We work closely with various construction specialists (electricians, gas-safety experts, architects, garden designers) to enable us to deliver the top class service and to ensure that the safety building regulations and codes of practice are followed.
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Latest review:
A single storey extension. Bedroom chimney place knocked down. Patio to the rear. Marek was very hardworking, professional and tidy. He was at my home every day and alway very early and always worked until late to get the job done
Plastering and painting services
Rating: 5 out of 5
Extension Builder in Northolt
Small family business with years of experience in : *Plasterering@external house insulation, k render, silicone render, sand cement render, damp proof render, skiming. *painting and decorating *tiling /bathroom refurbishment All work will be carried with great quality finish in a tidy manner with best prices you can get on the market.
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Latest review:
Wow, what a service. Needed a room and a half done quickly, Ady responded immediately and gave me his quote and said he could do it straight away. He blew the other quotes out the water, 12 hours later he was at my door material the lot, no fuss just got on with it. Would highly recommend him to anybody looking foe an excellent plasterer. Thanks again Day.

4.1

Top rated Extension Builders

Our Extension Builders in Northolt, 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 Northolt?

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

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

What are the hourly rates of extension builders in Northolt?

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

Find extension builders in Northolt with MyBuilder

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

Step 2: Compare different extension builders in Northolt

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

Step 3: Hire Northolt extension builders with confidence

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

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

What to ask a Northolt extension builder before hiring?

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

An extension builder in Northolt 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 Northolt 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 Northolt?

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 Northolt 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 Northolt 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 Northolt

Can an extension builder in Northolt help with planning permission?

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

Many Northolt 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 Northolt help with materials and finishes?

Yes, most extension builders in Northolt 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.