Extension Builders in Upper Holloway

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (19 reviews)

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

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 Upper Holloway

3464 Results

Sort by:

AVOTERG Ltd
Rating: 5 out of 5
Extension Builder in Upper Holloway
Our aim is to help clients achieve their objective on time and budget and to the highest standard. We value the good communication with the clients, and try to have as much information as possible with regards to how their project must look when completed.
Get in touch
Latest review:
The job was a complete refurbishment of a one bed flat, including rewiring and re-plumbing. We would recommend Al and his team without any hesitation. From the very beginning and all the way to completion, we felt very lucky and fortunate to hire them. We found them to be very hardworking, conscientious and professional. The job was a difficult and complex one, but the team still completed within time and within budget. Al's advice made the whole process easier and we found him to be very trustworthy and honest. The end result was better than we originally hoped for and was done to a high standard.
AP General Builders
Rating: 5 out of 5
Extension Builder in Upper Holloway
Our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. As a result, a high percentage of our business is from repeat customers and referrals. I would be more than happy to showcase the high quality of work I/we pride our self in and would welcome the opportunity to earn your trust and deliver you the best service in the industry.
Get in touch
Latest review:
Extensions- 5 Sep 2019
The builders did an incredible job refurbishing my house. For my house I wanted to break the internal wall to create a bigger living room and also for them to refurbish the toilet. In the beginning they’ve set a period when everything will be done and they’ve stuck to it so they are trustworthy. Seeing the progress, I could definitely tell that they were working incredibly hard and I know that they have been working long hours to ensure that they manage to finish it within the timeframe that they’ve set. I would definitely recommend them.
ScutariConstruction
Rating: 5 out of 5
Extension Builder in Upper Holloway
Scutari Construction is a limited company based in London. We are a very reliable and professional team of tradesmen with over 10 years of experience on the building industry, committed to deliver the highest levels of quality and service to our clients.
Get in touch
Latest review:
Extensions- 14 Apr 2021
Mel and team completely transformed our house in a very timely and professional manner. I honestly cannot say enough good things about him. The team works really hard and their model provides the fastest, highest quality construction at a reasonable price. Use these guys!
C and C developments
Rating: 4.9 out of 5
Extension Builder in Upper Holloway
I have been in the construction industry for over 30 years I specialise in renovations Carpentry plastering extentions but can cover all aspects of construction and acoustic sound reduction
Get in touch
Latest review:
Plastering- 26 Apr 2026
Conrad was absolutely amazing from start to finish - absolute gentleman, superb craftsmanship (walling off two double doors: plastering, skirting, paining etc). Very personable and great communication. Would highly recommend and would certainly hire again. Thanks Conrad!
T & LL construction
Rating: 5 out of 5
Extension Builder in Upper Holloway
T & LL CONSTRUCTION Loft • Extensions • Refurbishments • Home Improvements Bring your home to life with reliable, high‑quality building work. Services we specialise in: • Loft extensions • Full home refurbishments • Kitchen and bathroom renovations • Structural alterations • Roofing and insulation upgrades • Plastering, tiling, flooring • Painting and decorating • General building and repairs Why choose us: • Professional workmanship • Transparent pricing • On-time project delivery • Clean, tidy and respectful work • Fully insured
Get in touch
Latest review:
Extensions- 12 Nov 2022
VERY VERY PLEASED WITH THE WORK AND THE EXTRAS WE ASKED FOR.
P&T Property renovation LTD
Rating: 5 out of 5
Extension Builder in Upper Holloway
LND Development ltd was established by a Polish builder. As a business we pride ourselves to provide a very experienced, hard working, friendly and loyal workforce. We provide a professional and experienced service at very competitive rates.
Get in touch
Latest review:
Pawel and the team did a fantastic job. The bathroom looks superb and the whole team took time to finish the job to a very high standard. There was a narrow timeframe in which to do the work and this was met (despite more effort than first thought with respect to strengthening the floor). Pawel was easy to deal with and contacted me after the job to ensure everything ok. Highly recommended.
Graal Structural Engineering Ltd
Rating: 5 out of 5
Extension Builder in Upper Holloway
We offer Structural Desing and Calculations for New Build, Extensions, Loft Conversions, etc. Detailed drawings and calculations for Building Control. We offer one-stop-shop services including, planning applications, architectural & structural design, cost estimations, project management and construction works.
Get in touch
AVmen
Rating: 5 out of 5
Extension Builder in Upper Holloway
We are AVmen Construction We provide a range of Design and Build services to Luxury Commercial & High-End Residential properties in a professionally estimated, planned, and controlled manner: Bathroom Design, Reconfiguration, Refurbishment/Renovation 2D/3D CAD drawings and services for complex refurbishments Extensions, Conversions, Modernisation from the scratch Kitchen Extensions and Complete Kitchen renovations Building Shell & Core, Mechanical, and Electrical Services.
Get in touch
Latest review:
Carpentry- 7 Sep 2020
Amiran delivered an excellent job. The sauna was supplied devoid of full clear instructions and materials and Amiran was able to solve all the issues in a timely and satisfactory manner. Very good workmanship, attention to detail and create problem solving. Would hire again.
Shpetim troka
Rating: 5 out of 5
Extension Builder in Upper Holloway
Troka Construction specializes in home refurbishments, extensions, and a wide range of home improvements. With a focus on quality craftsmanship and personalized service, we bring our clients' visions to life with dedication and attention to detail.
Get in touch
Latest review:
Carpentry- 30 Apr 2026
Great communication and was able to come and do the job quickly after first message. Job was completed to a great standard (skirting boards and some scotia)
Vadet Construction
Rating: 5 out of 5
Extension Builder in Upper Holloway
We are Anyfix Limited, with over 20 years of experience in the construction industry. We provide high-quality services covering everything from strip-out to brickwork, electrical, plumbing, carpentry, tiling, plastering, flooring, and painting, leaving a tidy, clean site.
Get in touch
Latest review:
Bathroom Fitting- 28 Jan 2025
The first point I would make when recommending Vasile is to highlight that he is a true master of his craft. He has a wealth of experience and his knowhow was very helpful to me on what was a fairly sizeable project. He was able to make good suggestions regarding the layout and finish of the bathroom. The quality of his team's work was also outstanding and many people have complimented both my bathroom and kitchen since completion. The man knows his stuff and is very good at what he does. As such I would recommend him to anyone who wants a high quality finish on their building project.
Builders Are Us Ltd
Rating: 5 out of 5
Extension Builder in Upper Holloway
With over 10 years’ experience in Loft Conversions, Extensions and Refurbishments, BuildersRUs offer the complete home service. Our dedicated team will help you transform your home, managing all aspects of the process including design, planning, regulations and completed build to the highest specifications. Let us realise your home’s potential, creating your ideal master bedroom, a kid’s gaming room, a quiet home office, or that dream kitchen. Call us today for great work at great prices.
Get in touch
Latest review:
Bili did a amazing job. He and he's team has been extremely helpful and very professional. Bili listened, made good suggestions, clean and always on time. They finished the job perfectly and on schedule. It was pleasure working with Bili and his team and I would recommend them without hesitation.
Besar Construction Ltd
Rating: 4.8 out of 5
Extension Builder in Upper Holloway
Hello from Besar Construction Ltd. With over 15 years of experience in construction and landscaping, we specialize in creating spaces that are both functional and inspiring. Our construction services cover everything from Building, Extensions and Renovation to high-quality finishing, always with attention to detail and durability. In landscaping, we focus on designing and building outdoor living areas — including decking, patios, fencing, driveways, pergolas, and garden structures — that bring comfort and character to every space. Each project is guided by craftsmanship, sustainability, and a vision of blending beauty with everyday living. We are proud of our dedicated team, who have successfully delivered over 100 landscaping projects and more than 40 construction projects, always with a commitment to craftsmanship, durability, and client satisfaction. We can’t wait to meet our new clients and start their next project. Thank you.😊
Get in touch
Latest review:
Landscaping- 16 May 2026
Very professional quotation, I chose over two others because he was very clear on where extra costs may arise and was very straightforward. He advised a different finish than I originally thought I wanted with cut stone edges and it looks even better with his suggestions. His crew were very friendly and professional. Would definitely work with him again in the future.
Construction Bushi Ltd
Rating: 5 out of 5
Extension Builder in Upper Holloway
Hi We are a construction company working all over London We are part of the federation of master builders The work we do is, -Loft conversion -Extension -Refurbishe -Decorating -paving -garden
Get in touch
Latest review:
Extensions- 25 Jan 2022
About halfway through the project now and I have only positive things to say about these guys. They are always on time and hard working, great communicators and pleasant to deal with. The work has been top notch and their quotations have been very fair. I have great confidence things will turn out exceeding my expectations. Will update upon completion.
Muro Construct ltd
Rating: 5 out of 5
Extension Builder in Upper Holloway
Muro Construct Ltd is a family-owned construction company dedicated to providing personalized, high-quality building services to homeowners and businesses. With a focus on attention to detail, reliability, and clear communication, we bring your vision to life with every project we take on. Whether it’s a home renovation, a commercial build, or general repairs, we take pride in delivering exceptional craftsmanship and ensuring that every job is completed on time and within budget. At Muro Construct Ltd, we treat every project as our own, offering a hands-on approach and building lasting relationships with our clients.
Get in touch
Latest review:
Tiling- 11 Jun 2025
I hired for just for bathroom and toilet tiling, However due to the diligence, attention to detail, honesty and work ethics of Muro construct, I hired him to decorate my entire house, this includes everything form stripping wallpaper and painting, floorings, tiling, fixing doors, putting up all my new furniture including a very compl bunk bed for my children room. This builder works really hard and time efficient. He has helped transform my house into a luxurious living space and I am not exaggerating when I say that the price is very fair, I have had three times the quotes for less the quality. I will be using the builder for future jobs.
ProNoRth General Builders
Rating: 5 out of 5
Extension Builder in Upper Holloway
Hello, I am a skilled builder based in North London. With a dedicated team, I offer comprehensive construction services. From small renovations to large projects, I deliver high-quality workmanship and ensure client satisfaction. Contact us to bring your building dreams to life. pronorthgeneralbuilders
Get in touch
Latest review:
Norbi is an exceptionally talented carpenter. He was the team lead on our major building project when we restored our Victorian house over an 18 month period. All his work was superior, from replacing ceilings and ceiling roses, to laying the new herringbone floor with electric underfloor heating. He was always polite, well mannered, and respectful. Norbi takes pride in his work and genuinely cares about the finished result in your home, a rare quality amongst many. We cannot recommend him highly enough.
Alban's A Team Solution
Rating: 5 out of 5
Extension Builder in Upper Holloway
Hi my name is Alban I am a builder. I am honest and hardworking person. I have 18 years experience on general building trade. I undertake all building work, new build houses, new extensions, loft conversion. We also do all refurbishment interior and exterior. All structure and good knowledge of architectural plans.
Get in touch
Latest review:
Carpentry- 20 Oct 2017
nice guy, good comms, very good cartentry

4.1

Top rated Extension Builders

Our Extension Builders in Upper Holloway, are rated 4.1 out of 5 based on 19 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 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.