Extension Builders in Islington

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 Islington

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LIVAHAUS
Rating: 5 out of 5
Extension Builder in Islington
We are a professional team and we are very responsible, punctual and on time with our work .
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Latest review:
Tiling- 16 Feb 2026
Luis did an excellent job on my bathroom. He had to do a lot of prep work before starting the tiling, including rebuilding the floor and repairing the walls. At every stage he explained what needed to be done, ensured that I wanted to go ahead, listed the materials that would be needed, and the cost. It made a huge different to me that Luis was willing to source and purchase all materials; he checked in with me from the suppliers as to choice and cost, and sent receipts for every penny. I cannot recommend him highly enough, for his knowledge and expertise, his honesty and hard work, and also for being such a lovely person, nothing is too much trouble. I am delighted with my new bathroom, and am planning more home improvements with Luis, when he is free again!
SPEKT GROUP LTD
Rating: 4.8 out of 5
Extension Builder in Islington
We are a team father and sons, with over 30 years of experience in Wood Occupations and construction sites, who's goal it's to provide our customers with quality services.
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Latest review:
Carpentry- 11 Mar 2025
Great work and would recommend!
Ionut
Rating: 5 out of 5
Extension Builder in Islington
Hello, I'm Ionut handyman, I also do tile and floor work, as well as paving and driveway work.
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Latest review:
Landscaping- 7 May 2026
“We recently had our landscaping redone along with new turf installation, and the results were excellent. The team was professional, punctual, and paid great attention to detail from start to finish. They completely transformed the garden, leaving everything neat, tidy, and looking amazing. The new turf was laid perfectly and has already made such a difference to the overall appearance of the space. Communication throughout the project was clear and friendly, and the workmanship was top quality. Highly recommend to anyone looking for reliable and skilled landscapers.”
Inspire Construction Solution LTD
Rating: 5 out of 5
Extension Builder in Islington
We specialise in Loft conversion, House extension and all kinds of buildings works
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Latest review:
We did a lot of research ahead of our loft build, and spoke to customers of the companies we looked at. We were impressed with Toma and her team from the outset, especially in terms of clarity and communication. We sat down with the project team at the start and walked through the week-by-week plan for our build, then a whatsapp group and weekly meets meant we knew exactly what was happening throughout. Our endless questions were responded to swiftly. Additional optional trade-ups (eg top-hung windows, larger bathroom window etc) were discussed and explained with context, sound advice (and clear pricing where nec) but always still optional. Toma's communication with the teams also seemed strong and continuous, with materials always arriving in time and ahead of when needed, no down-days etc - and importantly, the teams all seemed happy and were just lovely people to have around. I realise with hindsight too that the team's care and workmanship really put them a cut above many others in my area and the project remained on schedule. I wouldn't hesitate to recommend ICS for the whole package and in fact we've also chosen to use them again for a kitchen extension.
Valentin
Rating: 5 out of 5
Extension Builder in Islington
Extension, plastering, tiling, flooring, plumbing, electric.....General contractor
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Latest review:
Bathroom Fitting- 1 Jun 2024
Valentin is a very professional and well experienced plumber and electrician. Hi did amazing job.Changed the bath and the panels in one day!
Diti building & Construction Ltd
No reviews yet
Extension Builder in Islington
Our company takes pride and joy in the high quality that we prove. We strive to achieve highest levels of work for our clients which has been the case for over 20 years of experience in construction. We do everything from loft conversion, extensions, full refurbs, bathroom, kitchens. We are proud to say that our work has spoken for us throughout the years and will be glad to show older projects of our quality works. So feel free to contact us for any questions or query’s, we’ll be happy to accommodate you and take your projects on. We have a full team builders , electricians, plumbers, carpenters, tilers, painters and we have our architects and engineers that we works closely with. We hope to take on your projects and give you an amazing experience throughout the process and give a top quality finish all all works taken on. TikTok name DBC Instagram name DITI Building & Construction Ltd Where you can see my jobs some of them
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NORDBRIT CONSULTANCY LTD
No reviews yet
Extension Builder in Islington
If you want to work with an experienced company in home renovation and repairing, you are in the right place.
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Home General Building limited
Rating: 5 out of 5
Extension Builder in Islington
A company that works on the restoration and repair of all things related to buildings and we have experience in all magazines such as the installation of kitchens and bathrooms, construction work, restoration of paints, installation of wood tiles, windows and many other works related to construction
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Latest review:
Really good job all-time
One Lion
No reviews yet
Extension Builder in Islington
All jobs undertaken with 100% commitment.
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CM Fixing Limited
Rating: 5 out of 5
Extension Builder in Islington
Façade & Cladding * Façade installation across a wide range of systems and materials * High-performance rainscreen cladding systems * GRC (Glass Reinforced Concrete) façades * Metal panel façades * Terracotta rainscreen systems * Curtain walling systems * Shopfronts and glazed façades * Atriums * Canopies * Louvres and ventilation systems * Privacy screens * External façade paint refurbishment * Mastic and façade sealing works Curtain Walling Installation of curtain walling systems, including: * Schüco * ALUK * Metal Technology * Smart Systems * Jansen * Single and double-glazed curtain walling systems * Structural glazing * Structural silicone glazing Windows & Doors Supply and installation of: * Aluminium windows and doors * Steel windows and doors * PVCu windows and doors * Timber doors * Composite doors * Commercial and residential entrance doors * Glazed doors and screens * Shopfront doors and systems Glass Supply & Installation * Single and double glazing * Replacement glass * Structural glazing * Safety and toughened glass * Laminated glass * Insulating glass units (IGUs) * Glass for windows, doors, curtain walling and shopfronts Internal & Specialist Glazing * Internal glazed partitioning * Internal partitioning systems * Structural glazing * Suspended ceilings * Glazed screens and internal doors * Glass replacement and remedial works Door Automation Supply, installation, servicing and maintenance of automated door systems, including: * Automatic sliding doors * Automatic swing doors * Entrance automation systems * Door operators and controls * Sensors and associated hardware
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Latest review:
Windows & Doors (uPVC & Metal)- 8 Sep 2026
Responded quickly to the job request and came same day. Did the work at the the estimate rate and did a professional and tidy job with no miss and minimal fuss. Would recommend.
Sadia
Rating: 5 out of 5
Extension Builder in Islington
"Stylish Kitchen & bathroom Fitting Service with prices guaranteed between £4000 to £5000, you can trust us to deliver top-notch service Transform your kitchen into a modern masterpiece with Quality Builders Limited! Our reliable team specializes in fitting any kind of stylish Wren B&Q kitchen, complete with gas cooker, washing, and cooking machine connections.
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Latest review:
Quality Builders completed a remarkable domer and loft conversion for us on 2/10/2023, and we couldn't be more pleased with the results. From the outset, their professionalism and attention to detail were evident. The initial consultation was thorough, and they took the time to understand our vision for the space. Throughout the project, communication was excellent, with regular updates on progress and any necessary adjustments. The craftsmanship displayed by Quality Builders was exceptional. Every aspect of the conversion, from structural work to finishing touches, was executed with precision and care. Their team of builders and contractors demonstrated expertise and skill, resulting in a finished product that exceeded our expectations. Not only did Quality Builders deliver on time, but they also adhered to budgetary constraints without compromising quality. Their transparency and honesty throughout the process gave us peace of mind and confidence in their abilities. The transformation of our space is truly remarkable. The addition of the domer and loft has added both aesthetic appeal and practical functionality to our home. The new space is light-filled, spacious, and seamlessly integrated with the existing structure. Overall, we cannot recommend Quality Builders highly enough. Their commitment to excellence, attention to detail, and professionalism set them apart in the industry. If you're considering a home renovation project, look no further than Quality Builders for exceptional results.
Ridgewell Roofing and Building Ltd
Rating: 5 out of 5
Extension Builder in Islington
Ridgewell roofing and building ltd is a family owned and run business, we strive for perfection in the quality of our work , competitive pricing and customer satisfaction , no job is too big or too small , we do all types of roofing , from flat roofs in felt rubber fibreglass, pitched roofs repointing leadwork valleys and general maintenance feel free to get in touch
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Latest review:
Roofing (Pitched)- 10 Sep 2026
James was very prompt and gave a competitive quote and was professional in his response. Gave quotations for repointing a valley gutter and for replacing it if there was damage. James arrived promptly with his assistant and did a very good job with repointing the valley gutter as the valley itself was fine. He also replaced 4 damaged roof tiles at no extra cost. Would be happy to use Ridgewell Roofing for future roof work.
Miri zeneli
Rating: 4.9 out of 5
Extension Builder in Islington
With many happy and returning customers over the last 11 years, you can be sure of being well looked after by Miri Construction. My aim is to provide a stress free project, delivered in a manner that I am confident will exceed your expectations. I carry out all work myself and will be your single point of contact. My customers often comment that I am approachable and cheerful. I find that a positive attitude always helps projects run smoothly with good communication throughout.
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Latest review:
Plastering- 17 Jan 2025
Miri was great in completing the project with an excellent finish and a competitive quote. Thank you Miri.
Best Quality Double Glazing Ltd
Rating: 4.8 out of 5
Extension Builder in Islington
Aluminium and UPVC manufacturers/ Suppliers and Fitters Single Doors / Double doors / French Doors / Bifold Doors / Conservatories / Roof Lanterns / Composite Doors All kind of Quality Windows and Doors at trade prices. We also deal with traders. Unbeatable prices with quality products
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Latest review:
Windows & Doors (uPVC & Metal)- 13 Jun 2024
Job done promptly and within the budget required. The window was put in place so quickly I didn’t have a chance to wipe the dust of it before it went in! Would suggest the fitter carries a cloth with him to wipe fingerprints and bits off the window before installation but really a small thing considering. Overall very happy with the job done. Thanks.
Zsolt
Rating: 4.7 out of 5
Extension Builder in Islington
It is a family business with 20 years of experience. We have a wealth of experience in all areas of building construction, expansion and renovation.We rarely hire more than one client, so we can allow us to complete the project from start to finish in the right quality, in the right time fame. Traders are fully trained, respected and trusted. Contact us if you want your Dream Home to become a reality.
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Latest review:
Bathroom Fitting- 22 Sep 2025
I recently had my bathroom completely renovated by Zsolt and Mario and the experience was outstanding from start to finish. They were professional, punctual, and incredibly skilled—nothing was too much trouble, and their attention to detail was second to none. One of the highlights of the project was the walk-in shower they installed, It’s beautifully tiled, and gives the bathroom a sleek, modern feel. They kept the workspace clean, communicated clearly throughout. Zsolt clearly take pride in their work, and it shows in the final result. The bathroom looks fantastic and feels like a real upgrade to the home. I wouldn’t hesitate to recommend them to anyone looking for trustworthy, high-quality builders. Thanks again, Zsolt and the rest of the team, you’ve done a brilliant job.
London Art Construction and Design Ltd.
No reviews yet
Extension Builder in Islington
LACD is a unique design & build practice based in central London, providing clients with a complete turnkey service for their home renovation from concept through to completion. Over the years we have carefully curated an in-house team of artisan craftsmen.
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4.1

Top rated Extension Builders

Our Extension Builders in Islington, 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 Islington?

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

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

What are the hourly rates of extension builders in Islington?

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

Find extension builders in Islington with MyBuilder

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

Step 2: Compare different extension builders in Islington

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

Step 3: Hire Islington extension builders with confidence

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

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

What to ask a Islington extension builder before hiring?

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

An extension builder in Islington 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 Islington 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 Islington?

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 Islington 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 Islington 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 Islington

Can an extension builder in Islington help with planning permission?

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

Many Islington 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 Islington help with materials and finishes?

Yes, most extension builders in Islington 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.