Extension Builders in Northolt

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (21 reviews)

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Some of our top rated extension builders in Northolt

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KC Builders
No reviews yet
Extension Builder in Northolt
We do all kinds of building works like electric, plumbing , roofs , tilling, plastering, etc
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Mannatconstruction
No reviews yet
Extension Builder in Northolt
we strive to provide 100% quality fitting bathrooms and ensuites.with over 10 years experiance in renovating bathrooms we give the customer our personal vision and provide total stress free renovation and aim to complete all projects on time as quoted in quotes. we install wet rooms and and lighting to customers preferred project,so give us a go and share your vision.
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H S CONSTRUCTION LONDON LTD
Rating: 5 out of 5
Extension Builder in Northolt
HS construction is a reliable business based in Berkshire/West London covering all aspects of building work. Established since 2009, HSC has worked with many homeowners and architects to deliver high-quality structures across London and home counties . HSC are a registered and fully insured business ready to take on projects no matter how big or small . We offer a free no obligation quote and a site visit prior to quotation as well as having many links with experienced architects .
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Latest review:
I have been using HS Construction London for many years ranging from a full house refurbishment to smaller unexpected issues. I have always found them to be reliable and genuine. There are never any hidden surprises in the end. Sunny listens to his customers and also gives decent advice where needed. Their work is of quality and has a long life. I particularly impressed with how they complete the job in a timely manner. All the materials that have been used are of great quality; and it shows. In addition, HSC has many contacts such as architects, suppliers etc which has made my life so much easier. Reasonably priced and with great knowledge, i would certainly use them again.
Jmc lofts & extensions Ltd
No reviews yet
Extension Builder in Northolt
I have over 40 years experience in the building industry and specialise in loft conversions and extensions
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Bettersiteconstructionltd
Rating: 2.5 out of 5
Extension Builder in Northolt
Hi am mr saini from Bettersite construction our team help to provide satisfy construction jobs we undertaken new built extension,loft,renovation,kitchen bathroom landscaping,krender, we ensure that we provide quality work my teamwork projects we can show if want people to see will admire definitely
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Latest review:
Restoration & Refurbishment- 18 Apr 2026
I had my bathroom fully tiled and refurbished by Mr Madan and it was done with patience and professionalism. My house is 1930s build and it comes with its own challenges when doing a project, but Mr Madan dealt with every challenge, whilst keeping my costs down. I'm 100% happy with the end result and I will highly recommend him.
Riya glass and glazing ltd
No reviews yet
Extension Builder in Northolt
Hello, my name is Renu, and I represent Riya Glass and Glazing ltd, a trusted provider of high-quality windows and doors. We specialize in delivering durable, stylish, and energy-efficient solutions that not only enhance the beauty of your home but also improve comfort and security. Our mission is simple: to provide customers with the perfect combination of design, functionality, and value. Whether you’re looking for modern upgrades, classic styles, or custom solutions, we take pride in tailoring our products to meet your unique needs. With 15 Years of experience, a commitment to excellence, and professional installation services, we ensure every project is completed with care and precision. At [Your Company], we believe your windows and doors should do more than just open and close — they should add value to your home and peace of mind to your life. We’d be honored to help you transform your home with solutions built to last
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MacG Ltd
No reviews yet
Extension Builder in Northolt
We are a construction company, who works mainly with the refurbishment of the domestic sector. We do all of the works regarding construction sites, anything you need we will deliver you. Many years of experience on the tools let us be sure of what we doing and make happy our Clients.
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Gill Builder
No reviews yet
Extension Builder in Northolt
I am always available for electricity, plumbing, house renovation, floor heating, extension, driveway, garden work etc. No Job is small for me and I always do my job with dedication. I have more than 10 years of work experience in construction line. note: - free quotation for work.
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Hydrogen Plumbing and Heating
Rating: 4.9 out of 5
Extension Builder in Northolt
We are Hydrogen Plumbing and Heating LTD and we ensure to provide the most experienced engineers with a wide range of knowledge within the plumbing and heating industry. We are dedicated to continuously offer impressive services such as general plumbing, general gas and heating repairs, boiler repairs and boiler installations, which includes: underfloor heating, powerflushes, pumps, leaky taps, noisy radiators and air locks. We cover Central, Greater London and Surrey.
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Latest review:
Central Heating- 18 Dec 2021
Fabulous service! Highly recommend. Very communicative and discussed different options until I was completely happy. Will 100% use Karim and team again!!
IGL Services Limited
No reviews yet
Extension Builder in Northolt
I am a builder with over 10 years of experience in the construction industry, specialising in loft conversions, house extensions and carpentry. Together with my skilled team, we deliver projects across London with a focus on quality, reliability and completing on time. We have successfully completed lofts, extensions and full refurbishments, helping homeowners transform their properties. Based in Greenford, we cover Greater London and surrounding areas. If you are looking for a reliable and experienced builder for both large and small projects, I would be happy to discuss your plans.
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FSB Company (UK) LTD
Rating: 5 out of 5
Extension Builder in Northolt
FSB is a well-organized contracting company with a team experienced in large-scale development projects with leading UK construction companies. Based primarily in London, we offer a variety of self delivered services, including complete extensions, and conversions, small works, structural alterations, steel work installations, ground work (foundations, drainage, concrete sub and superstructures), hard landscaping and paving and soft landscaping. We manage our sites carefully and have a digital site management tool kit. Our fully managed service connects skilled tradespeople with experienced construction management directly ensuring attention to detail that begins with our Contractors Proposals and continues through to practical completion and aftercare.
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Latest review:
Extensions- 17 Nov 2025
Freddie, Kaz and Dan are a great team. I felt they were friendly and professional throughout. Any slight niggles were discussed and solutions found, quickly and professionally. They were respectful and went out of their way to get on with all the neighbours. Over all I would say they are a team of very nice people, who care about what they do and take pride in achieving the result their clients are after.
HC builders
Rating: 4.9 out of 5
Extension Builder in Northolt
I m builder working from last 15 years,My business partner is also in this field from last 25 years. We do all types of work but specially loft conversions and extensions. We done lots of work in Hounslow, Sunbury , isleworth.we can also show the jobs we have done recently.My father was also a builder and all the experience I got from him.
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Latest review:
Bathroom Fitting- 12 Sep 2021
what wonderful person his very goop and hard working person i hire him any time thank you jagjit for all the work. nabil
King general builders
No reviews yet
Extension Builder in Northolt
We undertake all sort of general building works. Such as extension, renovation, loft convention, bathroom fitting, kitchen fitting and more.
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Construction
Rating: 1 out of 5
Extension Builder in Northolt
We do all construction work Skim ,paint ,wood floor , floor tiles ,krainder Bathroom ,new extension and garage Brick nd block work
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Latest review:
Bricklaying- 11 Mar 2023
The builder came to build a single skim brick wall to the side entrance of my house -: around 120 bricks. He agreed to £300 for labour including inserting a door. Upon arrival, of which he came on foot, he had no tools, no bucket, no drill, no ladder. He had to borrow all of my husbands equipment and sent my husband out for extra materials on two occassions. The lintel he asked us to order was the wrong size, we ordered one that was far too big and wasted more money due to him measuring up the job wrong - again a waste of money. Then, we had to drive him to toolstation to buy a brick cutting tool because of this using our own time and fuel. You would assume a brick layer would have tools if they are doing jobs privately - his colleagues excuse was we are just starting up our private buisness. He then started asking for more money and stormed off leaving all the rubbish behind even though we gave him the £300 as agreed prior to the job. The wall itself is okay but again at one point he refused to build up to the top because of a metal screw apparently impossible to remove, so yet again my husband had to assist with the job and removed the screw. Honestly more hassle than it was worth. Also the door was not fitted so now will need to pay someone else to do the job. I do feel bad for them that do not have any equipment but when you pay money for a job you do expect a certain level of service. I wish them good luck in the future and hope they take this advise on board.
Mapna constraction ltd.
Rating: 4.2 out of 5
Extension Builder in Northolt
Hi everyone, We are a family-run business with over 10 years experience and pride ourselves on our incredibly high-standard quality of work, customer rapport, competitive prices and efficient time-frames. With our customers' satisfaction held in the heart of our work, we will go the extra mile to ensure all needs and requirements are met and you are 100% satisfied with the end product. 'If it isn't good enough for our home, then it isn't good enough for yours'.
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Latest review:
Bathroom Fitting- 8 Apr 2026
Arash and the team were great - on the job on time every day - flexible in regards a lot of the fittings and adjustments. Very good price and work completed on time. Monies all agreed upfront, payment in part as based on progress. Will use again.
TM Building Constructors Ltd
No reviews yet
Extension Builder in Northolt
Flat roofing, Roof Tiles. Extensions.Loft conversions. Patios. Paving. Garage conversions
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4.2

Top rated Extension Builders

Our Extension Builders in Northolt, are rated 4.2 out of 5 based on 21 reviews from customers like you.

Quality screening

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 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.