Extension Builders in Crouch End

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

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

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 Crouch End

3424 Results

Sort by:

Mario Services
Rating: 5 out of 5
Extension Builder in Crouch End
Mario & Alex Construction LTD specialise in construction and building services, complete property refurbishment, house extensions and loft conversions. Provides unmatched customer service. Our commitment to small,hudge integrity, providing the highest value and satisfied customers, has been the ingredient that has fueled our growth from the beginning. We ensure that all our work is professionally managed so that the result is of outstanding quality, cost-effective.
Get in touch
Latest review:
Bathroom Fitting- 20 Jan 2023
We highly recommend Mario & his team. They fitted a new kitchen & bathroom to a really high standard within a short, timeframe. They work hard, are friendly, professional & honest, my neighbour even commented on how considerate they were! Upon first meeting Mario we were impressed by how organised he was. He arrived on time with the description we’d posted on my builder & went through it methodically. We had A LOT of questions! He answered all of them & didn’t rush us. We received a competitive quote within a day as promised. It included everything we discussed & he quickly answered our follow up questions. We wanted an accurate idea of the cost of electrical work & Mario arranged for his electrician to come & inspect/quote before we’d appointed Mario the job. Our kitchen & bathroom is complicated, with lots of difficult angles. Damp, unlevel floor, unlevel windows, a low ceiling were uncovered in the bathroom. Mario did well to identify solutions, giving us expert advice. Pipes were neatly chased into the wall. Underfloor heating & LVT, tiling, grouting & painting all done to a very professional finish. He kept us informed of progress, checked our preferences & was patient when we had supply delays, finding ways to ensure the job finished on time enabling us to move from our temporary accommodation back home in time for Christmas. He promptly fixed some minor issues after the job finished. We highly recommend Mario & would use him again.
grantconstruction0
New on MyBuilder
Extension Builder in Crouch End
The construction company carries out and performs a full range of complex interior finishing works, general contracting for the repair and reconstruction of buildings and premises in commercial areas. The main direction in which the company operates is commercial real estate: shopping, entertainment and office centers, factories, hotels, logistics complexes and scattered throughout London will undertake any repair and restoration work. We use only high-quality materials and tools to ensure the highest quality of work, in addition, we always adhere to the agreed deadlines and budget, which allows our clients to be confident that the repair work will be completed on time and without unnecessary costs
Get in touch
Watan
Rating: 4.5 out of 5
Extension Builder in Crouch End
Hi everyone, Here at Watan Building & Renovation Ltd we undertake all aspects of domestic construction works. We have been trading for over 10 years, we are happy to give advice and free estimate on your work so please get in touch.we carry out all works on domestic buildings such as: Full house renovation, Bathroom, Kitchen, plastering, Flooring, Rendering Decorating, Electric, Plumbing (gas safe) Chimney removal, Fencing, Extension with a fantastic quality work and reasonable price.
Get in touch
Latest review:
Plastering- 28 Jul 2025
Watan and his worker did a fantastic job on the lime plastering, will certainly be using in future. Extremely affordable and professional with clear communication throughout.
NDR PROFESSIONAL LTD
Rating: 5 out of 5
Extension Builder in Crouch End
Plastering, Silicone render, plasterboard...
Get in touch
Latest review:
Plastering- 29 Aug 2025
I asked Daniel to check and price some pebble dashing job. Daniel was fair in his pricing. He was on time in commencing the work as we had agreed. He never left the site until the job was completed within a few days, hence causing least interruptions. I do recommend him and I intend to ask him to carry out works in future.
BLV MAINTENANCE
New on MyBuilder
Extension Builder in Crouch End
At BLV Maintenance, we are a dedicated team of skilled professionals specialising in Painting and Decorating, Building, and Property Maintenance services. We provide high-quality workmanship across a wide range of interior and renovation projects, including: Painting and decorating Kitchen installations and refurbishments Bathroom installations and renovations Wall partitioning and structural alterations Property maintenance and repairs Home improvements and remodelling solutions Our commitment is to deliver reliable, professional, and cost-effective services tailored to each client's needs. Whether you're looking to refresh a single room or undertake a complete property transformation, BLV Maintenance has the expertise to bring your vision to life. Please visit our instagram page @blv_maintenance_joinery to see our recent works. Our services: Brick / Concrete Structural Repairs Cladding Concrete Garages Concreting Extensions / Conversions Garage Conversions General Building Insurance Claim Specialist Partition Walls Property Maintenance / Repair Refurbishments.
Get in touch
BRITLIT CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in Crouch End
Building construction work, all building work undertake. Experience 20 years
Get in touch
Latest review:
Conversions - General- 23 Nov 2019
Saulius was excellent. Saw the job that needed doing, we thought it looked complicated and were worried about the costs. However, him and his team dealt with it quickly and made a complex job look
KEVIN CONSTRUCTION SOLUTIONS LIMITED
Rating: 5 out of 5
Extension Builder in Crouch End
Kevin Construction is a London-based, well-organised construction company specialising in large-scale developments alongside leading UK firms. We offer a full suite of services—from extensions and conversions to structural alterations and landscaping. With a dedicated team, digital management tools, and a focus on quality, we guide every project from planning to successful completion.
Get in touch
Latest review:
Fencing- 13 May 2026
Kevin turned up on time and did a solid job on my fence. Would use again
Fastway Constructions Limited
Rating: 5 out of 5
Extension Builder in Crouch End
At Fastway Constructions, we are dedicated to redefining the construction industry through sustainable practices and innovative solutions. Based in the United Kingdom, we pride ourselves on delivering exceptional quality and reliability across four key sectors: Residential Constructions, Commercial Constructions, Industrial Constructions, and Renovation & Remodelling Here at Fastway all of our employees are fully qualified, skilled and very experienced building contractors that have worked on hundreds of projects over the years resulting in 100% client satisfaction, full job completion on time, and always well within budget. All employees hold cscs cards for their relevant trades along with health and safety certificates and first aid for a competent safe worksite at all times. We are a building contractor with a professional approach to all our projects. We offer a seamless and multi-trade service, for all domestic projects from new builds, extensions, loft conversion, renovation to fully finished houses, all tailored to meet our clients’ specific requirements.
Get in touch
Latest review:
Plumbing- 1 Aug 2025
Jitin did a good job in finding a solution to the leak in the washing machine drainage pipe. He used his experience in problem solving and fixed the issue. Thanks Jitin
PMC Developments
New on MyBuilder
Extension Builder in Crouch End
Carpenter from Ireland living and working in London since 2012
Get in touch
JC Group Property Sevices LTD
Rating: 5 out of 5
Extension Builder in Crouch End
JC Group Ltd is a reliable and experienced building company offering bathroom installations, plumbing, home extensions, and general building works. With over 30 years of combined industry experience, we take pride in delivering high-quality workmanship, clear communication, and projects completed on time and within budget. We are committed to customer satisfaction and maintaining the highest standards on every job, no matter the size.
Get in touch
Latest review:
We’re absolutely delighted with the extension and the overall experience from start to finish. The workmanship is to a very high standard, and everything was completed professionally and on schedule. Communication throughout the project was excellent, and we were kept informed at every stage. The team were reliable, tidy, and respectful of our home, and the finished extension has exceeded our expectations. We wouldn’t hesitate to recommend them to anyone looking for quality work and a stress-free build.
Arkle Vass
Rating: 5 out of 5
Extension Builder in Crouch End
We are a professional company with multi-skilled people in different areas and subjects. House renovation, electrical jobs, plumbing, tiling, painting, gardening, maintenance and a lot more. Better quality for less money than other companies would do it. We offer a free quotation, so do not hesitate to contact us.
Get in touch
Latest review:
Tiling- 19 Nov 2017
Very nice person, who did an excellent job tiling the floor of my outside work shop. Would certainly use again, and can highly recommend.
THORNVEIL DEVELOPMENTS LTD
No reviews yet
Extension Builder in Crouch End
Thornveil Developments Ltd is a reliable and professional construction company specialising in refurbishments, property improvements, and general building works across London. We take pride in delivering high-quality workmanship, attention to detail, and efficient project completion. From small jobs such as painting, flooring, and partitions to larger projects including renovations, garage conversions, and structural work, we handle every job with the same level of care and professionalism. We work closely with our clients to understand their needs and ensure the final result meets expectations. We offer competitive pricing, clear communication, and a dependable service from start to finish. Customer satisfaction is our priority, and we aim to build long-term relationships through trust and quality results. We understand how important timelines and budgets are, which is why we plan every stage carefully and keep our clients informed throughout the process. Our team is committed to maintaining clean, safe working environments and delivering results that add real value to your property.
Get in touch
Best Quality Double Glazing Ltd
Rating: 4.8 out of 5
Extension Builder in Crouch End
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
Get in touch
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 Crouch End
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.
Get in touch
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.
Team 1 Construction Ltd
No reviews yet
Extension Builder in Crouch End
Our Vision & Promise At Team 1 Construction Ltd we guarantee to deliver you a stress-free building process and a finished product that will be everything that you imagined — we stake our reputation on it. Everyone working for us is committed to superior project delivery – all the time, every time. We approach each day’s challenges with a “can do” attitude, always ready to deploy our talent for original thinking.
Get in touch
Jas & Savoy Construction ltd
Rating: 5 out of 5
Extension Builder in Crouch End
Building work,rear&side extention,loft conversion,kitchen,bath room,drive way, shed all type of work undertaken
Get in touch
Latest review:
Extensions- 27 Jul 2016
I am so overwhelmed with this company after having bad luck with another company I would really recommend Jas & Savoy to everyone I have had a single storey extension- They are very respectable 1000%- The work they do is highly professional- Also at a very good reasonable price- I did not even have to watch them- They stay in contact with the building control, I am lost for words... They follow the drawings, and do exactly what you want... Beautiful work very highly recommended.... Thank you so much for your hard work Jas & Savoy Construction ltd

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.

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 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.