Extension Builders in Upper Holloway

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (17 reviews)

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Some of our top rated extension builders in Upper Holloway

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Redmark Contractors Limited
Rating: 5 out of 5
Extension Builder in Upper Holloway
Redmark Contractors Limited have over 10 years experience, and with many years experience in the building trade. We are a professional team are reliable builders operating in London and the wider area. We take great pride in all work which we undertake, taking great care to make sure that our client’s needs are met in a meticulous and professional manner.
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Latest review:
Extensions- 27 May 2025
They helped build me two houses and were always putting their best foot forwards. Bhupinder and his team are lovely, and are now like family to me. They have a bright future ahead for themselves and for the clients they look after.
GQ building services ltd
No reviews yet
Extension Builder in Upper Holloway
I have been working in building for 16 years I was a carpenter working in the luxury west end property developer. I have run my own team since 2010. I have taken projects worth £500k in the past. I have a great team and good customer service skills.
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Dariusz Zaczkowski
No reviews yet
Extension Builder in Upper Holloway
Extension Loft conversion Bricklaying Roofing Demolition Porches and Conservatories Kitchen fittings BENCHMARX, HOWDENS and much more Floors, doors, windows, wardrobes, partition walls, shelving, fittings Decking Any aspects of plumbing Bathroom refurbishment Any aspect of electrical work Also interior and exterior decorating, plastering, painting All our work is insured For free estimates
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Asrn construction ltd
No reviews yet
Extension Builder in Upper Holloway
I have been working in the construction more then 10 years ,I can work anywhere in the uk.
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GM Construction
No reviews yet
Extension Builder in Upper Holloway
Our range of construction projects include kitchens & bathrooms, refurbishments, loft conversions and extensions. We project manage our work and believe that good clear communication with our clients is key to a successful project- from our first consultation visit, throughout the quotation and build process. We want our clients to be delighted with both the quality of our work, and the manner in which it is carried out. We look forward to hearing from you soon!
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Spyro contruction ltd
No reviews yet
Extension Builder in Upper Holloway
At Spiro LTD Rendering & Roofing, we provide professional roofing, rendering, and property improvement services throughout London and the surrounding areas. With years of industry experience, we specialise in silicone render systems, exterior rendering, roof installations and repairs, loft extensions, insulation, paving, tiling, and general building works. Our commitment to quality craftsmanship, reliable service, and customer satisfaction ensures every project is completed to the highest standard, delivering durable and attractive results that add value and protection to your property.
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Prab builders ltd
Rating: 5 out of 5
Extension Builder in Upper Holloway
Prab Builders is one of the leading and fast growing constructions companies in the UK who take projects and work in a atmosphere where one can get everything under one roof. We have a team of experience people and we understand what our clients want. And as result we give total satisfaction to our customers and convert ideas into reality to give our best We are in this field from the past 18 years .Our service is professional,caring,and high quality and Customers are our First Priority
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Latest review:
Extensions- 8 Dec 2021
Me and my wife are very satisfied with Prabbuilders work. What stands out with Prab builders is that they do every task as if they are doing it for their own house and with work they are meticulous and exceptional. What we started with and how our extension looks now is simply amazing and the way they explain about what will look good(Color/ the structure etc ) is commendable as we both were not sure what decision to make, but after completion we are overjoyed to see how excellent it turned out to be now. I would recommend them anytime based on their skill ,eye for detail, being punctual and the hard-work they invest into every task to make sure we are getting the final product the way we dreamt of.
NWLB Limited
Rating: 5 out of 5
Extension Builder in Upper Holloway
In building trade since 2003. Fast, good prices, reliable. RENOVATIONS. BATHROOMS. ELECTRICAL. PLUMBING. TILING. FLOORING. DECORATION. KITCHENS. My fees: £135 PER DAY or £95 PER A HALF A DAY.
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Latest review:
Handyman- 21 Jan 2026
Excellent workmanship timescale for job perfect, work carried out to high standard very caring polite and friendly throughout Will be using this company again and thoroughly recommend. Thank you
KFN Plastering & Property Maintenance
Rating: 4.8 out of 5
Extension Builder in Upper Holloway
KFN Plastering & Property Maintenance is a trusted and professional company with over 18 years of industry experience. Based in Watford, we take pride in delivering exceptional workmanship, attention to detail, and outstanding customer service on every project. Fully vetted and committed to the highest standards, we provide reliable plastering and property maintenance services tailored to meet our clients’ needs. Whether undertaking small repairs or larger renovation projects, we consistently deliver a high-quality finish with a focus on professionalism, cleanliness, and customer satisfaction.L
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Latest review:
Plastering- 29 Mar 2024
Confronted with a difficult narrow stairwell and hall for access, the guys worked hard and overcame all obstacles. A high standard of finish and cleaned up afterwards. I highly recommend them, and will contact Karl again for future work.
CHL IMPROVEMENTS LTD
No reviews yet
Extension Builder in Upper Holloway
North London based 10 years of experience
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BL Carpentry
Rating: 5 out of 5
Extension Builder in Upper Holloway
Hello! My and my team are working on all kind of construction projects trough London. We've got 15 years of experience and many happy and returning clients.
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Latest review:
Multiple fitting out works, eg fitted cupboards, kitchen fitting. Top notch. Knowledgeable, fair, prompt. Would enlist his help again.
Global32 Construction Ltd.
Rating: 5 out of 5
Extension Builder in Upper Holloway
We're a London-based construction company dedicated to delivering projects of all sizes with utmost care. As proud members of the Federation of Master Builders (FMB), our highly skilled and professional team in construction and project management is here for you. Discover a world of construction possibilities with our comprehensive range of services tailored to meet your needs. From envisioning and crafting stunning new builds to revitalizing existing properties through renovations and conversions, we're dedicated to bringing your vision to life. Our expertise extends to interior design and fit-outs, ensuring that every detail reflects your unique style and functionality requirements. We specialise in both residential and commercial projects. Backed by our meticulous project management, you can trust us to deliver on time and within budget. Our consultancy services provide invaluable guidance at every step. Whether it's groundworks, landscaping, or ongoing maintenance, we're here to turn your construction dreams into reality. Beyond residential work, Global 32 Construction also has solid experience in commercial projects. Whether you’re refurbishing an existing space or starting something new, our team can handle both the technical side and day-to-day coordination to keep things running smoothly. We’ve worked on a range of spaces including hair salons, F&B outlets, and other retail units, so we understand the practical needs behind each project, from layout and workflow to compliance and finishing details.
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Latest review:
My house was old and its condition was poor. Much were needed to be fix. The original kitchen layout were also inconvenience to my wife. I need to have all these changed under limited time. This builders have a team of specialists on almost every aspect. They gave me variety on the layout design and choose of materials. This saved me money, time and tons of trouble to find difference contractors. The after service and their respond time are very good too. I hope by sharing my happy experience can save your money and trouble to find a good contractor.
Per.construction
No reviews yet
Extension Builder in Upper Holloway
My name is bardhok I have over 13 years experience on construction Am specialised in full house refurbishments Loft converted extension House maintenances Landscaping
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Acumen Property Services Ltd
No reviews yet
Extension Builder in Upper Holloway
We undertake projects including minor & major refurbishment within the domestic and commercial fields. We have specialist personnel capable of managing cyclical repairs, voids, kitchen & bathroom refurbishments, electrical and mechanical engineering, plumbing and gas (gas SAFE), carpentry, double-glazing, plastering & decorating.
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house convert ltd
Rating: 4.6 out of 5
Extension Builder in Upper Holloway
We have the manpower and ability to undertake jobs small or large. With a combined 30 years experience, we are a company that distinguishes itself with its close approach to the clients and their needs. When it comes to extensions and loft conversions, we bring a unique craftsmanship and use only high-quality materials to give you the best results. From simple changes to major renovations, we have your needs covered.
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Latest review:
Extensions- 25 Sep 2019
Daniel and team did a fantastic job extending our kitchen in West London. Work including all the structural elements, installation of glazing and doors, wood floor, plastering, electrics and kitchen units. Daniel is reliable and happy to help, would definitely recommend him.
jc_electrical
Rating: 5 out of 5
Extension Builder in Upper Holloway
We are a construction company with years of experience in all aspects ranging from groundwork, carpentry, extensions and many more. We pride ourselves on delivering a high quality finish.
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Latest review:
Landscaping- 20 May 2026
Very pleased. Responsive and did a good job

Top rated Extension Builders

Our Extension Builders in Upper Holloway, are rated 4 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 Upper Holloway?

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 Upper Holloway 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 Upper Holloway who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Upper Holloway?

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

Find extension builders in Upper Holloway with MyBuilder

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

Step 2: Compare different extension builders in Upper Holloway

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

Step 3: Hire Upper Holloway extension builders with confidence

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

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

What to ask a Upper Holloway extension builder before hiring?

Before hiring an extension builder in Upper Holloway or extension building company in Upper Holloway, 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 Upper Holloway?

An extension builder in Upper Holloway 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 Upper Holloway 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 Upper Holloway?

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 Upper Holloway 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 Upper Holloway 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 Upper Holloway

Can an extension builder in Upper Holloway help with planning permission?

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

Many Upper Holloway 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 Upper Holloway help with materials and finishes?

Yes, most extension builders in Upper Holloway 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.