Trusted Archway Builders | Loft Conversions, Extensions & Renovations

Welcome to Square Mile Builders Archway

Square Mile Builders is a trusted, family-run construction business serving Archway and the surrounding North London area. With over 100 years of experience passed down through generations, we specialise in high-quality craftsmanship and meticulous attention to detail for residential projects. Our dedicated team provides a wide range of services, including loft conversions, home extensions, complete renovations, and comprehensive design and build solutions. Every project in Archway is managed from start to finish with exceptional care, ensuring your home transformation meets your vision and high standards. Square Mile Builders’ commitment to quality and customer satisfaction has made us a leading choice for homeowners across Archway, North London, and the South East.

About Square Mile Builders

Square Mile Builders is a well-established, family-run building company serving Archway and North London. With skills and values passed down through three generations, we bring exceptional expertise, professionalism, and service to each project. Specialising in both domestic and commercial sectors, we cover all of London and surrounding counties, confidently delivering high-quality construction with every job.

Our team’s commitment to outstanding craftsmanship and meticulous attention to detail has earned us a reputation as trusted builders in Archway. Whether for a home renovation or commercial build, Square Mile Builders is dedicated to providing results that meet the highest standards.

Our Services

Loft Conversions

Extensions

Bathroom Fitting

Kitchen Fitting

Plastering & Rendering

Interior Decorating

Exterior Decorating

Tiling

Roofing

Design & Build

Garden Rooms

Our Work

Square Mile Builders is a trusted, family-run business proudly serving Archway and the surrounding areas in North London. With three generations of expertise, professionalism, and customer service handed down from father to son, we deliver exceptional results across a range of domestic and commercial projects. Our services cover all of London and surrounding counties, and we are committed to high-quality craftsmanship and meticulous attention to detail on every job. From home renovations to commercial builds, Square Mile Builders in Archway is dedicated to creating spaces that reflect our commitment to quality and client satisfaction.

Latest Job

Full House Refurbishment North Finchley

Don’t just take our word for it!

“Square Mile Builders undertook the complete refurbishment of our house. This included extensive internal as well as some external works.They were helpful and proactive throughout the process. We are very pleased with the end result, high level of workmanship and attention to detail.”

“It’s always a pleasure to work with a talented set of builders. This job had to be perfect and we knew we could trust the team at Square Mile to deliver for us. Good work Chris.”

“What a fantastic job you guys have done; we felt confident with you managing the whole project and it was easy to keep up to date with progress. We’re very pleased with the outcome.”

Excellent service and professionalism throughout the project from Chris. We have been using this family business for over 10 years now and we will continue to do so for future projects.

“Square Mile has carried out work for our family for a number a years, from smaller projects through to complete remodelling and renovation work. They are a a joy to work with – always reliable, professional, and taking real pride in producing high quality work. Nothing is too much trouble, and they never present me with problems for which they have no solution. I always trust them to do a great job, and have never been disappointed.”

“Chris and Square Mile helped us visualise our dream of having some outside space; they know how to make the most of the space. Thanks again Chris.”

“We was so pleased with the finished job, Chris took pride in every part of the project and his attention to detail was second to none. Thanks very much.”