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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Stewart Everitt
No reviews yet
Extension Builder in Islington
Hi, I’m Stewart. I’ve been in the building trade for most of my working life. I will give you my full professional advice and work. I’m qualified in brickwork and restoration. I treat all my customers with respect and leave the work area clean and tidy. Thanks for your time
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Krishan Kumar
No reviews yet
Extension Builder in Islington
I am working for 9 years countruation site my skills plastering skimming tile etc
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Boundary builders
No reviews yet
Extension Builder in Islington
Family run company specializing in making more space extensions, loft conversions, out buildings,new builds. we can take the stress out of building for you from the start to finish with setting out architecture drawings building control structure build and interior ..
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Albatross Construction
Rating: 5 out of 5
Extension Builder in Islington
We are a small builder and groundwork company based in South Croydon, with over 30 years building extensions and groundwork experience. Having completed many extensions localy and various groundwork projects. We have all our own plant and machinery which keeps us price competitive and never ask for money up front (unlike some other builders) Our service comes with fully compressive building all risk insurance and all work undertaken is guaranteed References are available on request
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Latest review:
Groundwork & Foundations- 26 Feb 2025
I hired John to build a concrete base for a garden building installation and he did a great job, resulting in follow-on work for him laying a new Indian sandstone patio in front of the building, which he also did to a high standard. After receiving several quotes from different firms, I selected John because he asked the right questions, clearly thought about the solution and was interested in ensuring the result was the right one right for me. He's a lovely bloke and a pleasure to have working here. He works on his own and for the most part keeps himself to himself, wasn't fussed about tweaking the scope here or there as the plan developed and kept the place pretty tidy throughout. I will be using him again for sure, so I wholeheartedly recommend John for any work you're considering hiring him for.
Gm constructions London ltd
No reviews yet
Extension Builder in Islington
Hi my company name Gm constructions
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By she
No reviews yet
Extension Builder in Islington
I been Building lofts for a company in south london
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Barkatt Ltd
No reviews yet
Extension Builder in Islington
At Barkatt we believe in “Innovative Expertise with Integrity”. We aim to use innovative methods, combined with years of expertise, to offer our clients a trustworthy service. Listening to our clients allows us to understand exactly what they are looking for and enables us to advise you accordingly to ensure you make the decision which is best for you. We cover most aspects of building, specialising in loft conversions, extensions, out-building, kitchens and bathrooms.
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Helder Aguilar
No reviews yet
Extension Builder in Islington
I like to be responsible, clean and tidy with my work and with good finishes to give the best service to the customers
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IINVEST-HOME BUILDING LTD
Rating: 1 out of 5
Extension Builder in Islington
Hi I’m a Carpenter I take on 1&2nd Fix Referbishmnets , inc Carpentry , dry lining,Finish Carpentry ( Doors , flooring , kitchen , Bathroom, all wood works , skitiring, ect ) plumbing electrical & Plastering works Custom Joinery projects , Structural Carpentry, building works garage conversions ,
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Latest review:
Carpentry- 17 Apr 2019
We did agree the price on the job and confirmed the day to start work on the job but he didn’t turned off and did ignore my calls , wasted my day from work as well , this sort people should not advertise on my Bulider , so I kindly request my Bulider to banned this trader from my Bulider site .thanks
City and Provincial Preservation
No reviews yet
Extension Builder in Islington
We specialise in Damproofing, Timber treatment and mould condensation issues with over 35 years experience . We also undertake extensions, loft conversions, refurbishment renovations.
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Toni
No reviews yet
Extension Builder in Islington
We are a London-based construction company delivering high-quality building solutions across the capital and beyond. Specialising in residential and commercial projects, we provide reliable, end-to-end services—from planning and groundwork to final completion. Our focus is simple: quality workmanship, clear communication, and projects delivered on time and within budget. While we are proudly based in London, we also undertake projects across the UK, bringing the same level of professionalism and attention to detail wherever we work. Whether you’re planning a new build, renovation, or extension, we work closely with you to turn your vision into reality.
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Enache
No reviews yet
Extension Builder in Islington
I like to make my customer happy for my work, also being there for my customer on time keep everything clean before and after my job. I am the kind of person who enjoys the result of my work at the end.
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Oprea ltd
No reviews yet
Extension Builder in Islington
Hello, my company declares punctuality, we do everything with proper documents, invoices
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Stellar Build LTD
No reviews yet
Extension Builder in Islington
Stellar Build LTD is a trusted and reliable building contractor with over 50 years of combined experience in London. We specialize in a wide range of services, including carpentry, tiling, bricklaying, loft conversions, extensions, painting, flooring, and skimming. Our team is committed to delivering high-quality craftsmanship, ensuring that every project meets the highest standards of durability, functionality, and aesthetics. We take pride in our attention to detail, customer satisfaction, and timely completion of projects. Our competitive pricing, extensive expertise, and comprehensive services make us the ideal choice for both residential and commercial building projects. Whether you're renovating, expanding, or building from scratch, we provide tailored solutions that meet your needs. Serving all of London, Stellar Build LTD is dedicated to helping clients transform their properties with exceptional results. Contact us today for a free, no-obligation quote, and let us make your vision a reality!
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BessyConstruction
Rating: 5 out of 5
Extension Builder in Islington
Bessy construction has provided building and specialist outdoor services for over 10 years in and around West London area. We are a well established business and our reputation has been built upon our well completed projects, high quality of work and client satisfaction, reliability, flexibility, honesty & integrity. Our aim is too make sure that every customer is 100% happy with the job we carried out.
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Latest review:
I was very delighted to find Bessy Construction, to be part of my house renovation and also kitchen and loft extension. I was very lucky To have a grate team such as Bessy construction that came highly recommended. Bessy construction made my family and I to love our home. Highly recommend it has a great team that worked with passion on everything they touched in my house. Once again, Bessy construction thanks a lot for everything you done for me and my family. We always highly recommend you and everybody will be very satisfied and lucky to have you. London needs more builders like you all the best my friend Thanks
Sterry&staegemann brickwork
Rating: 3 out of 5
Extension Builder in Islington
Our names are Luke and Chris and we are a partnership with over 30years combined experience within the bricklaying and construction Industry. Sterry&staegemann brickwork have a very experienced and knowledgeable team of guys who are excellent but also have an extreme love and passion for brickwork.
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Latest review:
Bricklaying- 13 Aug 2022
Complete waste of time. Hired this tradesman a few months ago, to work on a simple brick BBQ. We had a conversation in person about the job and i informed him i would be supplying the bricks as they are "reclaimed". On the day they were to start the job, he turned up and said "oh" where are the materials, which was concerning. I had to explain our conversation in detail to point out that i said i was supplying the brick as they were reclaimed, no mention of any other material. I had just completed a huge renovation project and this was one of the final contractors to be used. Unfortunately this person is very amateur, and he then made me pay £500 for materials to be delivered. I paid for the materials and the new start date he suggested wasnt suitable, he then said he longer wanted the job! Can you believe it, he made me pay for all the materials, even though that was not agreed in person. I have dealt with over 12 different teams working on this project, and this one is the worst. No care in the word, he even sent a text said he was "quaking in his pants" about a bad review. I just replied saying, that sums everything up - totally unprofessional. Move on.

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.