Extension Builders in Northolt

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (16 reviews)

Easily find verified Northolt Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Northolt.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Northolt

3045 Results

Sort by:

Medi Building and Construction
No reviews yet
Extension Builder in Northolt
As I need to improve my Mybuilder feedback, I would not worry about the price of your job. So it is a great opportunity for you to get your work done in the best possible way and minimum price. Although we are new in Mybuilder, we are professional and qualified team in many construction aspects with over 20 years experience. We want to make sure that you get what you want at the highest standard and minimum price. Please don't hesitate to contact me for any reason. Many thanks Mehdi
Get in touch
Crown plastering & building
Rating: 5 out of 5
Extension Builder in Northolt
A family business run by father and son with over 30 years experience combined. Being a family business our work is our reputation and therefore all works carried out are to maximum potential! Clean, realiable and great pride is taken leaving customers happy and without hesitation for recommendations. Specialising in plastering, rendering, traditional Italian Venetian polished plaster and all aspects of building works also undertaken.
Get in touch
Latest review:
Bathroom Fitting- 20 Sep 2017
We hired Luca for a job that involved a variety of work across our entire flat. Being totally new to renovation work and having been stung by other builders, meeting Luca was a breath of fresh air – he was friendly, helpful and honest. Luca did an great job for a very reasonable price. He’s fairly new to contracting bigger jobs, but he’s got a lot of previous experience as a tradesman and his plastering in particular was perfect – we’ve had loads of compliments on the quality of his walls and ceilings. He was always on time, always communicated with us fully, and was a pleasure to have around the flat. He made a real effort to keep disruption as minimal as possible and was very patient with us about stuff needing to be moved from one place to another. It wasn’t the easiest job and there were a couple of problems and extras, but Luca takes a lot of pride in his trade and worked extremely hard to keep us happy. We had a couple of plumbing issues arise but he went well above and beyond to resolve them, coming back for 2 days after the job was due to be finished to make sure that everything was working properly. This is far more than we expected, and we did really trust that Luca wasn’t the sort of person that would leave anything unfinished. We’re so chuffed that we met Luca and with the excellent work he did, and would love to work with him again. Luca is going to go on to big things, so if you get the chance to hire him now, we'd recommend him without hesitation.
VCNY GROUP LIMITED
No reviews yet
Extension Builder in Northolt
We are a dedicated team of experienced, field-based professionals with diverse backgrounds in Health and Safety, Engineering, Project Management and Environmental Sustainability. Our combined expertise allows us to deliver integrated building solutions covering essential services, ensuring each client’s project operates smoothly, efficiently, on schedule and always in compliance with the highest industry standards. At VCNY Group Limited, we pride ourselves on turning ambitious visions into reality by blending innovation with practical, reliable execution. Established on unwavering principles of integrity, creativity and excellence. Our company has earned a leading reputation across the construction and civil engineering sectors. In addition to exceptional building services, we provide expert consultancy to guide clients through complex projects with confidence. From initial concepts to project completion, we remain committed to quality, sustainability and client satisfaction, setting the benchmark for superior results in every endeavour.
Get in touch
MGA Projects Ltd
No reviews yet
Extension Builder in Northolt
MGA Projects Ltd is a trusted London-based construction company delivering high-quality building services from start to finish. We specialise in extensions, full refurbishments, loft conversions, and structural works including steel installations. With years of hands-on experience, we pride ourselves on reliability, attention to detail, and clear communication throughout every project. Whether it’s a small renovation or a full-scale build, we work closely with our clients to bring their vision to life—on time and within budget.
Get in touch
O.G Building Services
No reviews yet
Extension Builder in Northolt
Hello My name is Oscar. I’m working, living in south west London. I have 10 years construction experience. I’ve worked for a number of successful building companies managing sites across the south west region, ranging from high end new builds to small extensions. I hold a full level 3 NVQ in advanced carpentry and have an excellent knowledge in all aspects of residential building. From erecting steel structures to precise kitchen fitting. Using my skills to solve problems and offer solutions.
Get in touch
Primer X Building
No reviews yet
Extension Builder in Northolt
Extensions, loft conversions
Get in touch
BP RENOVATIONS AND CONSTRUCTION
No reviews yet
Extension Builder in Northolt
Transform your bathroom into a space you’ll love with BP RENOVATIONS AND CONSTRUCTION.We’re a local team of expert bathroom fitters offering design, installation, and renovation services. Whether you want a modern upgrade or a complete makeover, we handle everything — from tiling and plumbing to lighting and finishes. We take pride in top-quality workmanship, clear communication, and outstanding customer service.
Get in touch
Jimmy&Son Construction LTD
No reviews yet
Extension Builder in Northolt
This is Jimmy&Son Construction LTD, We got 30 years of experience on Loft conversions, Extensions and full house renovations.
Get in touch
H&S CONSTRUCTION
No reviews yet
Extension Builder in Northolt
I’m a reliable and hardworking bathroom fitter with experience in installing bathrooms, showers, tiling, and general plumbing work. I take pride in delivering high-quality workmanship and making sure every job is completed to a professional standard. I work across the local area and am happy to travel for the right job. My services include bathroom installations, shower trays, tiling, silicone sealing, pipework adjustments, and general bathroom repairs. I focus on clear communication, keeping the workspace tidy, and making sure customers are happy with the finished result. Whether it’s a full bathroom renovation or a small repair, I aim to provide a reliable, honest, and efficient service.
Get in touch
Andrzej Zolnierzak
No reviews yet
Extension Builder in Northolt
With over 20 years of experience as a painter and decorator, I take pride in my precision, attention to detail, and commitment to perfection. I always strive to deliver the highest quality results in every project I undertake.
Get in touch
Dexacon Ltd
No reviews yet
Extension Builder in Northolt
We have over 25 years experience working in construction, covering all areas of the building. With a dedicated team for structural works we can do the majority of work in house. We are also bolstered by a number of incredibly efficient and highly skilled contractors to ensure all projects are completed on time and on budget
Get in touch
Urastar Construction Ltd
No reviews yet
Extension Builder in Northolt
Interior and Exterior Works, Extension and Loft Conversions, Renovations, Refurbishment, Civil Engineering Consultancy
Get in touch
Solis Power Limited
Rating: 5 out of 5
Extension Builder in Northolt
As a skilled kitchen and bathroom fitter with 15 years of experience, we bring a wealth of expertise to every project. Our in-depth knowledge of design, layout, and installation ensures exceptional craftsmanship and attention to detail. We excel in managing projects from start to finish, including precise measurements, assembly, and the seamless integration of fixtures, appliances, and finishes. In addition to your fitting expertise, we are a qualified NICEIC electrician, enabling you to handle all electrical installations and connections with full compliance to safety standards and regulations. This comprehensive skill set allows us to provide a seamless, one-stop service, minimizing the need for additional contractors and ensuring every project is completed efficiently and to the highest standard. Known for your reliability, professionalism, and excellent communication with clients, you have built a strong reputation for delivering functional, stylish, and high-quality kitchens and bathrooms tailored to meet your clients’ needs and preferences. Your commitment to perfection transforms spaces into beautiful, practical environments that stand the test of time.
Get in touch
Latest review:
Kitchen Fitting- 14 Jan 2026
My initial experience with Solis Power Limited was Leo’s immediate response within 30 minutes, visited my property to view my kitchen. He gave a full detailed breakdown of price list that explains each work to be carried out. Suggested materials to use also help with the purchase. Leo and his team are perfect working together, cleaned after themselves each day. They installed new electrical unit, also introduced registered gas man to run gas pipes and also connect the gas hob. Plumbing work was excellent too. Leo also helped with the measurements of splashback and splash splatter guard. The work was carried out within five working days delay was due to shortage of splashback in the store. I highly recommend Leo and his team.
Thomas Wicks Building Services Ltd
Rating: 5 out of 5
Extension Builder in Northolt
We are a growing domestic building company, with 20 years of experience carrying out all aspects of residential building projects. Extensions, Kitchens, Bathrooms and all of the related services such as Plumbing, Tiling, Electrics. We pride ourselves on giving the customer exactly what they want, making the experience of improving their property an enjoyable one.
Get in touch
Latest review:
Bathroom Fitting- 2 Jan 2018
Tom was brilliant from start to finish. Clean and very personable, we have used him again since and will do in the future.
M woodley and son
No reviews yet
Extension Builder in Northolt
We offer bespoke property service with over 30 years of experience , we specialise in large scale properties refurbs and new builds so we’re happy to undertake any job of any size , from herringbone flooring to bespoke bathrooms and kitchens
Get in touch
MYD Studio London Limited
Rating: 5 out of 5
Extension Builder in Northolt
MYD STUDIO London limited is a Design-Led Architectural and Planning consultancy focusing on New Build ,Extensions, Loft Conversions, Change of use and Flat conversion projects in different Boroughs in London. Whether you are looking to increase the size of your home, make the most of its current size through an internal alteration, or gain planning permission in order to increase its value before selling, we will help you to produce a planning application to meet all of your expectations.
Get in touch
Latest review:
Extensions- 6 Aug 2022
Majid has been great in producing drawings for our rear extension. He's also helped explain the whole build process to us from design, building inspection, and building. We received our drawings in under 10 days from the initial consultation and site visit. Majid was accomodating and was able to visit the site on weekends for the initial consultation. Always a pleasure to deal with and has been easy to reach over the phone or email. Would highly recommend Maji and MYD Studio London to anyone looking for an architect.

3.9

Top rated Extension Builders

Our Extension Builders in Northolt, are rated 3.9 out of 5 based on 16 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.