Extension Builders in Crouch End

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (16 reviews)

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Some of our top rated extension builders in Crouch End

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Ivor
Rating: 5 out of 5
Extension Builder in Crouch End
refurbishment,rear &side extensions,loft conversions+all the 2nd fix internall works-kitchen,plumbing,electrical,drainage,tilling,glazing,rendering,plastering,painting
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Latest review:
LargeGround floor extension, conversion of a bedroom to second bathroom, loft conversion, front garden paving , rear garden natural stone fitting, full refurbished of 5 bedroom house, 2 bathrooms, 2 living rooms and office, 1 large garden shed builded
Johny the Builder
Rating: 5 out of 5
Extension Builder in Crouch End
PROFESSIONAL BUILDERS. Johny The Builder Ltd are Building Contractors based in Romford, Essex. We undertake commercial and domestic Refurbishments, Roofing, Loft conversions, Brickwork, Extensions, Basements and new building projects. We make your House a Home
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Latest review:
Extensions- 28 Sep 2018
Johnny was very nice to deal with. When there were problems they were quick to find ways to rectify them. They started at short notice& finished on time which I was very impressive. We got a no. of quotes,Johnny was middle of the range but with a better level of service than others. Johnny was very open about when things might cost more &gave us the option if we wanted to proceed. A few things to note: -this was our 1st experience of any building work &we should have remembered they are builders, not designers -we both work long hours &so most days didn't see the team to get an update or brief them. This meant a few things were missed or miscommunicated - while most of the team were lovely the electrician used was horrible to deal with. He got very cross about requested changes, didn't deliver everything requested &just did silly things like putting in a light switch with 2buttons where there was only one Light or hanging lights incredibly low when we had given measurements of where we wanted them - we got Johnny's team to build some extra storage for us which on the whole was fine but some things weren't centred or for example the wine rack they built was wonky Overall, it was a good experience and we would recommend them but would suggest be home to oversee the work more than once a week (must be true of any building work!) and get your own electrician. Very happy to talk to people and give references-the house looks great now.
Myc construction ltd
No reviews yet
Extension Builder in Crouch End
Services I Offer: Home Extensions Loft Conversions General DIY Projects Bathroom Fitting Kitchen Installation Plasterboard Plastering Laminate Flooring Feel free to contact me for a consultation or to discuss your project needs!
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London Refurbishment & Construction LTD
Rating: 5 out of 5
Extension Builder in Crouch End
We are a friendly family business and we cover all aspects of the building trade. We have been trading for over 15 years in the Domestic Building trade. We undertake all large or small works so if you would like some professional advice just call, text, or email us. We carry out all the works on the domestic house: -Kitchens -Bathrooms -Plastering -Electrical -Plumbing -Painting & Decorating -Floors -Extensions -Loft Call now for free estimates and friendly advice.
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Latest review:
Restoration & Refurbishment- 23 Dec 2025
Christian & his team was beyond my expectations , they went above & beyond to make my home a home I have ever dreamt of they worked tirelessly & they very professionally & completed all agreed jobs in a timely manner.
CRI ltd
Rating: 5 out of 5
Extension Builder in Crouch End
With over 40 years experience, CRI can handle any complex assignment. Cost reduction and goal achieving in a timely and efficient manner. We undertake in any of the following: - General house/garden maintenance - Building extensions - Install of insulation - Stud partition walls - Suspended, gridded ceilings - Renewal of plasterboard ceiling/walls - Downlighting and spotlights - Certified electrician - Painting and decorating
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Latest review:
Restoration & Refurbishment- 21 Jul 2025
Despite the fact that CRI was a new member on the app with very few reviews, Jon came across very professional and accommodating and priced the job swiftly and fairly. I took a pun and awarded CRI the job. It took circa 2weeks and during this time Jon and the team where exceptional. In order to catch up and meet deadlines they were more than happy to do full weekends and always left the site clean and tidy. During the works, the team always kept me in the loop with photo updates on whatapp and next steps. I would highly recommend CRI.
Laurentiu Goian
Rating: 4.8 out of 5
Extension Builder in Crouch End
The Goian Group with over 18 years of experience in the UK's construction industry is ready to deliver value to your dream home, office or site. FREE painting for all house extensions.
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Latest review:
Extensions- 2 Oct 2024
He did the extension well, brick work is good, rendering on front of house good, terrace and wall with the neighbours good ,toilet under the stairs good, dividing wall in the living room with sliding doors good, kitchen installed good. Fence wall in front of house good brick work wrong bricks but it’s ok. Herringbone parchet wrong with gaps and lifted, rendering on the side of house wrong with marks, the new boiler took 2 months to make it work and the radiators still don’t work. Electrical work bad, after bringing another engineer to check we discovered at the boiler live cut cables that were loose and veri dangerous. Took 4 months to finish job we waited one month for the plumber who either way did a bad job. Laurentiu did not finish the job because of plumbing and rendering, and we ended in bad terms, he left us money to compensate for it. I would recommend him for extensions and any brick work, he needs to improve in pluming, electrical, flooring and rendering.
B&D Build Ltd
No reviews yet
Extension Builder in Crouch End
We are B&D Build with over 12 years of experience in construction and we undertake projects such as, extensions loft conversion, refurbishment etc. We operate from small to big projects so whether you are looking to expand, renovate or even just remodel you can trust the B&D build to achieve your vision. Strong client communication is our priority leading to skills and quality in every job we undertake.
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Arworks
No reviews yet
Extension Builder in Crouch End
I have had the privilege of working on a 260-year-old Grade Listed building in Islington, London, under the close supervision of conservation inspectors. This project required a careful balance of tradition and innovation — I combined the use of modern machinery externally with traditional, delicate methods internally to ensure the building remained completely scratch-free. My experience has given me a deep respect for heritage projects as well as the skills to deliver high-quality results on modern refurbishments.
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LADO Construction LTD
No reviews yet
Extension Builder in Crouch End
Hi, I’m Michael from LADO Construction Ltd. With over 7 years’ experience in the building trade, I specialise in delivering high-quality home extensions, refurbishments, and property renovations across London, Kent and Essex. As a Builder and Project Manager, I take pride in running jobs smoothly from start to finish — from foundations and structural work to final finishes. At LADO Construction, our focus is professionalism, attention to detail, and open communication. We work closely with clients, architects, and surveyors to bring plans to life, ensuring every project is completed on time, within budget, and to the highest standard. Whether it’s a new extension, kitchen/bathroom renovation, loft conversion, or general building works, no job is too big or small. We aim to make the building process stress-free and transparent, keeping you informed at every stage. Fully insured and committed to quality, we’re here to create lasting results you’ll be proud of.
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Highbury Builders
New on MyBuilder
Extension Builder in Crouch End
We are a professional building works company specializing in high-quality residential and commercial construction. Our team delivers reliable workmanship, clear communication, and projects completed on time and to specification. We are committed to safety, compliance with regulations, and excellent customer service on every job.
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House2Home
Rating: 5 out of 5
Extension Builder in Crouch End
House to Home Atelier is a local building company based in Abbey Wood, South East London. We specialise in end-to-end home renovations and construction, from initial design and planning to final finishes. Our team delivers loft conversions, house extensions, full refurbishments, bathrooms, kitchens, and bespoke interior solutions, always with a focus on quality, efficiency, and maximising space. We combine traditional craftsmanship with modern solutions, ensuring every project is completed on time, on budget, and to the highest standards. With our experience and carefully selected team of skilled tradespeople, we take care of everything from structural work and plumbing to carpentry, plastering, and finishing touches. We are local, accountable, and hands-on, so you always know who is managing your project. Your home is your investment, and we treat it as our own. Whether it’s a small repair or a full-scale renovation, we deliver solutions that maximise space, enhance character, and provide lasting quality.
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Latest review:
Works consisted of hip to gable loft conversion under permitted development and a refurbishment of the first floor of a semi-detached house into a four bedroom/bathroom layout, including new windows, balconies, wiring and plumbing as well as sound proofing the walls. With 100m2 of works this was my first introduction to a major building project and I was worried by the horror stories I have heard about builders. From the outset Monika set my mind at rest, listening to what I wanted, making helpful suggestions, offering tips for instance on how to save on the scaffolding and always asking me when choices needed to be made. She took the trouble to ensure that I knew what was happening, with daily photos of progress without the need for me to climb scaffolding. I was working to a tight timescale and budget, which Monika understood, and even having accommodated a number of changes including some additions, the project came in on time and on budget. All of the workers on the site were very professional and the quality of the work and the attention to detail was exceptional. I have no hesitation in recommending Monika and her team - I went into this project apprehensive and not sure what to expect; thanks to Monika, I came out the other side delighted by and looking forward to working with her and her team again to renovate my ground floor.
BORUFI BUILDRES
No reviews yet
Extension Builder in Crouch End
NEW BUILDS LOFT CONVERSIONS EXTENSIONS FULL REFURB
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ElioLandsceping and metal
No reviews yet
Extension Builder in Crouch End
we have 10 experience on the building job
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Propertyxhub Limited
Rating: 5 out of 5
Extension Builder in Crouch End
An experienced building trade specialist team with all qualified professionals. From new build to small work, we are happy to help you honestly.
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Latest review:
Plumbing- 2 Jun 2026
Thank you for doing that for me just give me a shout. I will do thank you very much. Thank you very much. I had in my car. Thank you for fixing my shower now I can have a shower without giving the whole bathroom a shower when I want a shower and for showing me that you have fixed my shower I very much appreciate you taking the time to come and fix my shower I am eternally grateful
Sns buildign services
No reviews yet
Extension Builder in Crouch End
We are a building company dealing with the design, build and maintenance of your homes. From fitting taps to building extensions you can rest assured we will do our utmost to make you happy
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G.M.G.U.K Ltd
Rating: 5 out of 5
Extension Builder in Crouch End
I have over 20 years experience for internal and external decoration and refurbishment . Last 5 years I have worked as a site manager and on projects over 3 million £ in Eco refurbishment.as i have learn how to be more proactive and how to deal with client and subcontractors also managing budgets , orders and labour on site ( over 100 labour on site), I feel that my place is more on being on the tools as this is what i like to do more.
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Latest review:
Handyman- 21 Jul 2018
Roland (who works for Gabriel) completed my raised beds. Very helpful and hardworking. Job done! Thanks, Roland!

3.9

Top rated Extension Builders

Our Extension Builders in Crouch End, are rated 3.9 out of 5 based on 16 reviews from customers like you.

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What types of services are offered by local extension builders in Crouch End?

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 Crouch End 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 Crouch End who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Crouch End?

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

Find extension builders in Crouch End with MyBuilder

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

Step 2: Compare different extension builders in Crouch End

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

Step 3: Hire Crouch End extension builders with confidence

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

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

What to ask a Crouch End extension builder before hiring?

Before hiring an extension builder in Crouch End or extension building company in Crouch End, 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 Crouch End?

An extension builder in Crouch End 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 Crouch End 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 Crouch End?

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 Crouch End 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 Crouch End 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 Crouch End

Can an extension builder in Crouch End help with planning permission?

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

Many Crouch End 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 Crouch End help with materials and finishes?

Yes, most extension builders in Crouch End 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.