Extension Builders in Harringay

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

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Some of our top rated extension builders in Harringay

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Uzi Construction Ltd
No reviews yet
Extension Builder in Harringay
We are a team of reliable, friendly and committed builders. We aim to complete our projects on time and precisely. Our priority is customer satisfaction.
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RED
No reviews yet
Extension Builder in Harringay
With over 20 years of experience in the construction and home improvement industry, our company specialises in a wide range of high-quality trades, including painting and decorating, tiling, dry-lining, carpentry, plumbing, and electrical work. Known for our reliability, craftsmanship, and attention to detail, we take pride in delivering exceptional results tailored to each client’s needs. Whether it’s a full renovation or a small home upgrade, our team is committed to excellence and customer satisfaction—something our loyal clients recognise by consistently nominating us for our trusted work and professional service.
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SpectRoom property Maintenance LTD
Rating: 5 out of 5
Extension Builder in Harringay
At SpectRoom Ltd we pride ourselves for being prompt, working to budget and on time and are very clean. We will fully complete any project including all decorating flooring tilling construction and all other property maintenance jobs to customer requirements and for that we will be more than happy to provide local references. SpectRoom for spectacular rooms.
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Latest review:
Extensions- 22 May 2019
Jacob was very accommodating and flexible. His team were great and he completed the work nicely. There was some splatter from the cementing on to my neighbour's wall. He tried to clean it off but it wouldn't all come off. Therefore, he went out and bought some paint and repainted their wall. I would get him back for more work without hesitation. When looking for a builder - they have to be honest, work hard and to an excellent quality without cutting corners. They should be responsible to ensure neighbours property isn't damaged and provide consultancy as what we want and want is realistic can differ significantly! - and if any issues rectify them once the job is complete and of course provide good after sales. I have used several builders over the years - very few tick all of the above boxes. Jacob certainly does.
artour keri
No reviews yet
Extension Builder in Harringay
I am a general builder with over 30 years experience in the field 24 of those have been in greece where early in my career i specialised in large projects such as building hotels, petrol stations from the ground up but later gained knowledge in all sort of works. I have been in the UK for 6 years and have done, loft conversions, extensions, renovations and much more. I would describe myself as a perfectionist with great attention to detail and i find pride in my work
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JM Building Service
Rating: 4.7 out of 5
Extension Builder in Harringay
Hi my name is Joe from JM Building Service and I would like the opportunity to come and have a look at any works you require my services for. I look forward to meeting you. Thank you.
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Latest review:
Bathroom Fitting- 14 Mar 2025
My previous bathroom fitters did a very bad job with the bathroom and cloakroom toilet and left it unfinished. I am so glad I went with JM Building service as Joe and Martin completely transformed both rooms. They rectified the previous fitters errors and completed the rooms. Joe didn’t just rush through the job to get it done quickly—he took his time, ensuring every detail was finished to a high standard. He worked meticulously, making adjustments until everything looked exactly as it should, rather than settling for ‘good enough.’ His dedication to quality and precision was evident throughout, and the end result speaks for itself. As well as being very good at what they do, they are friendly, reliable, trustworthy and hardworking. I have already booked them in for another job and requested a quote for another. I highly recommend JM Building services for their professionalism and craftsmanship.
K&S Design Build Ltd
No reviews yet
Extension Builder in Harringay
We have a committed team working on a range of different projects throughout London, working in all sectors including; residential, commercial and conservation. The services that we provide are, architectural and structural 2d & 3d designs, calculation, planning permission, building control, new build, refurbishment, self contained flats, loft conversion, rear and side extension plus much more. I have over 30 years of experience in construction and have worked on a variety of different projects, from small developments to managing large scale Projects.
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vrsbuilding
Rating: 4.9 out of 5
Extension Builder in Harringay
We ensure customer satisfaction with every job we do. My reliability and workmanship is second to none. We like to make sure our customers are 100% happy with our work. We supply free quotes and cover all aspects of building works from footing to roofing.
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Latest review:
Extensions- 13 Nov 2015
We had a terrible experience with VRS Building (Rimantas). After months of negotiating our renovation project & a verbal agreement VRS pulled out at the 11th hour. Rimantas's at VRS took a bigger job and contacted us by email and said "It's nothing personal, It's just business.' They have no loyalty to their clients.
Spartan Homes ltd
No reviews yet
Extension Builder in Harringay
Hi my names Leo and I am a multi skilled Tradesmen with other 35 years experience , city and guilds registered. I specialise in kitchens and bathrooms Plumbing and Electrics Garden Fencing and decking Garage conversions and extensions Flat roofs Any household DIY Painting and Decorating I am a perfectionist and take pride in my work!
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1789design limited
No reviews yet
Extension Builder in Harringay
We are a small construction company that deal with loft conversions, extensions, structural work, refurbishing, electrical(with certificate), plumbing as well as bathroom work, kitchen fittings, wood floor, tiling, drainage, patios, driveways, outhouses, new building etc. 17 years of experience in improving customers comfort. Many satisfied customers along the years. References available upon request( some projects can be seen). We are looking forward in working with you, all work is contract based, we are fully insured for the work we do.
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D Bird carpentry and building LTD
Rating: 5 out of 5
Extension Builder in Harringay
Hi were Dbird Carpentry & Building we are a family run company by myself Daniel and my brother Ellis. We take pride and love what we do! We will help you every step of the way through your project no matter the size.
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Latest review:
Conversions - General- 21 Jun 2022
D Bird Carpentry completed the works on time and to a high standard. Dan and his team were a pleasure to work with and I would be happy to work with them again.
Crimson Design & Build Ltd
Rating: 5 out of 5
Extension Builder in Harringay
As a contractor I've been in the building business for five years now and my reputation is growing from strength to strength. So far all my jobs have been referrals from previous customers. I've expanded my team and they all know meeting customers's expectations is number 1 priority.
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Latest review:
Firoj and his team renovated a bathroom for me in March 2015. He gave me a fixed cost for his labour and what turned out to be a very accurate estimated cost for all the parts/materials at the outset. He also gave me a completion time of 9 days with 1 extra day for 'spillovers' and 'unforseen delays'. He finished the job at exactly 9 days and still came around on the 10th day to see how everything was working. The quality of his work was excellent, to say the least. He attention to detail was admirable, as was his commitment to delivering a finished product that would last several years. This focus on detail and longevity is something that really sets Firoj apart from other builders, who often see such jobs as just another task to be completed before moving onto the next job. I have no hesitation in recommending him. Several months later my bathroom still looks great and everything works.
raza construction & development limited
No reviews yet
Extension Builder in Harringay
I am a Civil Engineer who has Studied MSc in Civil Engineering at UCL I have work experience in the Construction Industry as a Civil Engineer/Site Manager I have experience in all building work from planning and design to managing the whole project including New Development, loft conversion, and rear and side extension, Painting and decorating. all works will be done according to UK building control regulations.
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Knidos Enterprises Limited
No reviews yet
Extension Builder in Harringay
With over 25 years of experience in the construction and home renovation industry, we have successfully completed a wide range of projects, from full-scale home remodels to smaller custom renovations. Based in London, we serve clients locally and are also available to travel to within M25 and surrounding areas, ensuring our services are accessible to a broader community. Our expertise spans across skills such as carpentry, decorations and detailed interior design. We take pride in our commitment to quality craftsmanship, attention to detail, and excellent customer service, making sure every project is completed on time and within budget. When you hire us, you’re choosing a team that values integrity, hard work, and customer satisfaction above all, delivering results that enhance your living space and add lasting value to your home. We are more than happy to work with you and serve for your needs. Please do not hesitate to get in touch with us for any kind of questions and find out more about our +50 completed projects in London. Cheers!
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Rares Cristian Lupu
Rating: 5 out of 5
Extension Builder in Harringay
I am a sole trader working for myself for more than 10 years. Family experience over 35 years. I deliver all services from painting, dexorating, bathrooms, kitchens, full house builds, loft conversions, rear / side extensions, landscaping, plastering and plumbing/electric. Reliable and respectful to all my clients!
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Latest review:
had an excellent experience working with Cristian on my bathroom project. From start to finish, his work exceeded all expectations. Cristian was professional, attentive to my needs, and incredibly detail-oriented. His craftsmanship and commitment to quality were evident in every aspect of the project, and he transformed the space beautifully. He kept communication clear and made sure everything was completed on time and according to my vision. I am thrilled with the results and highly recommend his services.
Zamir Bulku
No reviews yet
Extension Builder in Harringay
I am an experienced builder with over 30 years in the construction industry. My skills include bricklaying, flooring, rendering, tiling, carpentry, painting, roofing, and plastering. I am a motivated and committed individual who takes pride in delivering high-quality workmanship. I approach every project with precision and care, always striving to complete work to the best of my ability and to a high professional standard.
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Asrn construction ltd
No reviews yet
Extension Builder in Harringay
I have been working in the construction more then 10 years ,I can work anywhere in the uk.
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Top rated Extension Builders

Our Extension Builders in Harringay, are rated 4 out of 5 based on 17 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 Harringay?

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

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

What are the hourly rates of extension builders in Harringay?

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

Find extension builders in Harringay with MyBuilder

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

Step 2: Compare different extension builders in Harringay

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

Step 3: Hire Harringay extension builders with confidence

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

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

What to ask a Harringay extension builder before hiring?

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

An extension builder in Harringay 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 Harringay 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 Harringay?

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 Harringay 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 Harringay 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 Harringay

Can an extension builder in Harringay help with planning permission?

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

Many Harringay 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 Harringay help with materials and finishes?

Yes, most extension builders in Harringay 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.