Extension Builders in Harringay

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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

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 Harringay

3359 Results

Sort by:

adam lloyd construction ltd
Rating: 5 out of 5
Extension Builder in Harringay
At Adam Lloyd construction we specialise in high end refurbishments but we also undertake small works and maintenance from decorating to landscaping we have excellent tradesmen in-house
Get in touch
Latest review:
This carpenter is a plywood maestro! My wardrobes are a testament to their craftsmanship – sturdy, stylish, and a definite upgrade from my previous cardboard chaos. Would highly recommend for a wardrobe transformation that's as solid as it is delightful. ⚒️👌 Top notch, class A stuff 👍🏻
Gjat construction ltd.
Rating: 4 out of 5
Extension Builder in Harringay
We provide high quality services with bathrooms and kitchens to stand out. We supply high standard services at affordable prices. Experts in house, kitchen and bathroom renovations with more than 10 years of experience. Contact us for free estimates.
Get in touch
Latest review:
Bathroom Fitting- 22 Apr 2023
Younger brother Anti was a professional and I would hire again but beware of the elder sibling as his workmanship his poor, here is a list:- 1) the cupboard fitted under the stairs was misaligned and the hinges are loose. Paint job was poorly finished too. 2) cupboard fitted across the boiler was all bent. Anti came and fixed it. 3) varnish across door and skirting boards were done once and therefore have an uneven spread 4) the floorboards did not have enough glue placed in certain areas so it creaks 5) grout in some time are missing 6) really poor sealant work on the bathroom 7) broke my £2000 TV and then hid the evidence. I only found out after placing the furniture back in its place. In contrast Anti did a good job in fitting the radiator. If you can Illicit promises of Anti only completing the job without the older the brother then go for it or else give them a wide berth.
Omerta Builders Limited
Rating: 5 out of 5
Extension Builder in Harringay
We undertake many jobs and specialise in extensions, loft conversions, painting and decorating, bathrooms, kitchens, and plumbing and electrical works. We work all over London, and have even completed jobs outside of London too. We take pride in the quality work we deliver, and make sure customer satisfaction is at the forefront of what we do. Combined within the company we share 30 years of construction experience.
Get in touch
Latest review:
Extensions- 11 Jun 2019
Very good builders. Came on time every day and finished work on time. Very reliable and trustworthy. We had quite a few hiccups along the way but they always managed to find a solution. Would definitely recommend them and use them again.
Arisa renovation LTD
Rating: 5 out of 5
Extension Builder in Harringay
Arisa Renovation LTD is a reliable and experienced building company based in London, offering a full range of high-quality renovation and construction services. We specialise in complete property refurbishments, including house renovations, extensions, and loft conversions. Our services cover all aspects of building work such as painting & decorating, bathroom and kitchen installations, carpentry, flooring, tiling, plastering, and general maintenance. We have extensive experience in structural work, including roofing, framing, and full property transformations from start to finish. Whether it’s modernising an interior space, installing a new bathroom, building bespoke stairs, or completing a full renovation project, we deliver excellent craftsmanship with great attention to detail. We pride ourselves on being professional, punctual, and tidy on every job. All work is completed to a high standard, on time, and within budget. Customer satisfaction is our top priority, and we maintain clear communication throughout every stage of the project. We also offer a workmanship guarantee to give our clients peace of mind. If you are looking for a trustworthy and skilled builder in London, Arisa Renovation LTD is here to help bring your project to lif
Get in touch
Latest review:
We are extremely happy with the bathroom renovation completed by Arista Renovation LTD. The workmanship is top quality, especially the tiling and finishing details. Communication was clear throughout and the project was delivered exactly as agreed. Would definitely use them again.
Future Shapes
Rating: 4.9 out of 5
Extension Builder in Harringay
We are a company who believe in building an outstanding relationship with each and every one of our clients. We pride ourselves on achieving impeccable standards of work, earning trust with our clients through our friendly, reliable, thorough and clean work. We now have an exceptional reputation for delivering fantastic results and over-delivering on expectations with our clients.
Get in touch
Latest review:
Restoration & Refurbishment- 31 Aug 2020
It was a pleasure dealing with Peter and his team from start to finish and we couldn’t be happier with the work that they did. I was impressed with Peter’s previous work and we developed a good rapport from the first meeting and I felt that I could trust him with the work. He was clear about the detail of the work that needed doing upfront and his quote was itemised to reflect what each element would cost. The work was done on time and of a high quality and Peter was responsive at all times to any questions or concerns we had. He also made great suggestions of how we could do things better and was open to our ideas and realising our dream. His team were punctual, friendly and took care of the house ensuring the work that they did was of a high standard at all times and attention to detail which really has made a difference now that the project is completed. I wouldn’t hesitate to recommend Future shapes to anyone and would certainly use them again.
Timall design& build Ltd
Rating: 5 out of 5
Extension Builder in Harringay
Timall Undertake all sort of building work including New Build, Refurb, extension, loft conversion.
Get in touch
Latest review:
I received planning permission for a 3m extension, garage conversion and garden office with a toilet/shower and the architect recommended Timall. We of course carried out all our due diligence before selecting Timall as our builder. I received around 8 final quotes from various legal and reputable builders, and gratefully we chose Timall after checking their previous projects. Timall renovated my townhouse, stripped to brick, repartitioned to be more functional for my family, moved bathrooms, new kitchen etc. The council building control said we needed piling for the 3m extension, and Timall were fantastic to change their plans to carry out other internal work whilst a piling specialist was called in, who Timall also liaised with. The garden office, 3m extension and garage conversion all went well. Parminder the director was very hands-on during the project daily, with his builders on-site daily, honest in his advice, and very experienced in his knowledge of the building industry.
Villa project
Rating: 5 out of 5
Extension Builder in Harringay
Villaprojects delivers high-end residential construction specialising in home extensions, loft conversions, renovations, and bespoke residential projects. We help homeowners transform their properties through quality craftsmanship, careful planning, and professional project delivery. From structural works and bespoke joinery to complete interior refurbishments and premium finishing, every project is completed with precision, attention to detail, and a commitment to the highest standards. At Villaprojects, we combine skilled workmanship with reliability, clear communication, and a clean, organised approach to deliver exceptional results from concept to completion.
Get in touch
Latest review:
Joinery & Cabinet Making- 23 Jun 2026
Highly reliable and professional worker.
Local Bricky
Rating: 5 out of 5
Extension Builder in Harringay
I have over 10 years experience in the construction industry. My main trade is brick laying but I do undertake different types of work depending on the requirements. I'm a hard working and trustworthy builder and work to perfection and also have a very trained team off carpenters,plumber,electrician plasterer and decorators we been doing many project together and we have achieved our targets with success
Get in touch
Latest review:
Extensions- 17 Jul 2020
Orgert Myrta and his highly skilled team did an exceptional job renovating our Victorian terrace house in under 8 weeks. On meeting Orgert, his warm, friendly and professional manner was reassuring. I immediately thought he was someone I could work with. His initial assessment of our house, he advised on best possible solutions to achieve our aims within budget. He invited me to visit the homes of his recent previous clients & obtain their feedback, which I did. Visiting two clients, they both spoke highly of Orgert & his team, sharing their positive experience and how Orgert has since completed work on their neighbours homes & family members homes too. Judging by the quality of work completed in both client's properties, I knew Orgert was the right builder for me. Responsive & prompt throughout, good communication, providing weekly status updates, even advising on where to source great deals on second fitting items saving us money. To say we are pleased with how well the project has gone & level of workmanship is an understatement! Without hesitation we highly recommend Orgert & his team, who since finishing our house are now doing work on my relatives house. Orgert & his team completed in our home: - Rewiring & new plumbing - Plastering walls & ceiling - Replace old ceilings - Painting & Decorating - Painted exterior front & back - Replaced & repointed brickwork - Installed new kitchen & bathroom - New flooring throughout
DE Property & Construction LTD
Rating: 5 out of 5
Extension Builder in Harringay
I have been a sole trader working in the building industry for around 25 years, working on a number of different projects. I have now set up my own firm, DE Property & Construction Ltd, delivering customers' dream projects at the highest standards. Please get in touch with me to learn more and to get a quote.
Get in touch
Latest review:
Joinery & Cabinet Making- 9 Dec 2024
Very impressed by Eugene's work. I hired him to build a bin shed for my front garden. He took the time to understand what I wanted and work out how he could combine the look I was after with a stable structure. I am so pleased with my new shed. Eugene is trustworthy and reliable and I will hire him for other work in the future
PrimeUKContractorsLtd
Rating: 5 out of 5
Extension Builder in Harringay
Prime UK Contractors is a London-based construction company providing high quality work for a reasonable price. Our projects are always finished on time. Our priority is the satisfaction of our clients. Our team consists of skilled, experienced builders who will help you execute your dream project.
Get in touch
Latest review:
I recently used PrimeUK Contractors Limited for conversion works at our studios in Camden, and I couldn’t be happier with the results. The project timeline was set at six weeks, and the team delivered right on schedule. Pavlo and his team had a clear understanding of the scope and what needed to be achieved, going above and beyond to make the project a success. The quality and attention to detail in their work were outstanding, and my entire team was thrilled with the final result. Their pricing was competitive and fair, which was another bonus. When we have more work in the pipeline, Pavlo and PrimeUK will definitely be my first call. Highly recommend!
Marsden General Builders
Rating: 5 out of 5
Extension Builder in Harringay
I have lived in Walthamstow, East London all my life and have over 35 years experience in the building trade, particularly in the Walthamstow area, providing me with excellent knowledge of local property's. My expertise is in kitchen extensions, chimney breast removal/rebuild and plastering but cover all aspects of the building trade and am happy to take on any job, big or small. References and visits to previous clients to view my work is always available.
Get in touch
Latest review:
Kitchen Fitting- 18 May 2017
Cannot fault the work Tony undertook. Completed on time, finished to a very high standard, kept informed (we were away on holiday whilst work was being done). So pleased with the result, my daughter's room is what was the kitchen and looks beautiful. New kitchen fitted with new floor tiles and looks fantastic, boiler was moved etc. Can't recommend Tony enough and I will definitely use Marsdens again.
T&S Electrical And Property Services Ltd
Rating: 5 out of 5
Extension Builder in Harringay
WE ARE AN ELECTRICAL & HOME IMPROVEMENT COMPANY WORKING THROUGHOUT GREATER LONDON, PROVIDING SERVICES TO PROUD HOMEOWNERS IN THE LOCAL AREA.
Get in touch
Latest review:
Electrical- 27 Jan 2026
Taf was great, I wish I had gone to him and not to openrent as I initially did for my Eicr and essential works! Big recommend!
Nick’ll fix it
Rating: 5 out of 5
Extension Builder in Harringay
I am a builder with over 20 years experience. I have a reliable, professional team of tradesman that work alongside me. We provide building, maintenance and handyman services.
Get in touch
Latest review:
Bathroom Fitting- 9 Apr 2018
We opted to contract out the renovation of our bathroom and after meeting a few different builders went for Nick and his team. Despite being new to the site and having no feedback he had genuine reasons for this (operating on referrals and now looking to expand) and while not the cheapest, priced the job fairly with itemised details of the work to be carried out which we appreciated Due to a delay initially on our part and then his due to taking another bigger job in the interim which was delayed due to weather the work was fragmented over a few weeks rather than the initial quoted week and did exceed initial quoted working time although we were clear upfront there was no immediate time pressure and therefore need to rush so this didn't impact us greatly. Nick and his dad carried out all general building, tiling and basic electrical work while Plumbing/Electrics and Plastering were subcontracted. General standard of workmanship was high, we had a couple of snags as always with a bigger project which were complicated somewhat by us not being on site and having to communicate via phone although everything was resolved to our satisfaction and Nick was considerate of our lists of demands. Another point worth noting is Nick and his team were very tidy with rubbish either taken out immediately or stored in bags leaving minimal/no mess behind. Will be asking him to quote on future work and happy to have found and added him to our growing trade contact book.
Excel Builder
Rating: 4 out of 5
Extension Builder in Harringay
Experienced, qualified builders 25 years experience in all types of trade, from plumbing and electrical works, extensions, loft conversions, kitchens, bathrooms, all bespoke works, including gardens.
Get in touch
Latest review:
Extensions- 6 Aug 2024
Started very good and came cross professional. But did not finish the job despite receiving half of the money in advance demanding cash payment, he left the job incomplete because demanding money in advance and threaten to leave if we don’t pay them in advance despite the job is not done according to their own given schedule. I also found out they are doing few projects at the same time that’s why couldn’t complete on time.
E&E construction
Rating: 5 out of 5
Extension Builder in Harringay
With over 18 years of industry experience, our construction company specializes in high-quality house extensions and loft conversions across London and Essex. We are committed to transforming homes with expert craftsmanship, tailored design solutions, and reliable project management from start to finish. Whether you're looking to expand your living space, increase property value, or bring new life to your home, we deliver outstanding results that reflect your vision and meet the highest standards of construction excellence.
Get in touch
Latest review:
Fencing- 9 Sep 2023
Ervin was polite, communicated well and worked hard to get the job done. Would hire again.
EME Construction
Rating: 5 out of 5
Extension Builder in Harringay
Our company is all about flexibility, innovation and, above all, results. We excel in working as part of a collaborative team to develop, design, and construct each project and we ensure our clients participate in the process every step of the way – consulting on the design, and achieving their goals for cost, schedule and quality.
Get in touch
Latest review:
Handyman- 11 Feb 2024
I am very pleased with the services as handyman and decorator by Mr.Onuzi. I found him him to be punctual. reliable, professional,and work of a high standard.I recommend him 100% and would not hesitate to use his services again.

4.1

Top rated Extension Builders

Our Extension Builders in Harringay, are rated 4.1 out of 5 based on 18 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.