Construction Company in North West London — Built on Trust, Fairness, and Quality

House renovations, house extensions, loft conversions, structural works and new build homes — delivered with care, professionalism and attention to detail across North London.

A Full Range of Residential Building Services

Whatever the size or scope of your project, Sanfair Construction provides professional building services across North West London, delivering everything from home renovations and house extensions to loft conversions, structural works and new build homes.

As experienced residential builders in North London, we work throughout Mill Hill, Hampstead, Finchley, Edgware and the surrounding areas, helping homeowners transform, extend and improve their properties with confidence.

Whether you’re planning a rear extension, double storey extension, house renovation, loft conversion or complete new build project, our team manages the process from planning and structural works through to the final finish.

Every project is delivered with the same commitment to quality workmanship, clear communication and careful project management. As a trusted construction company in North West London, we focus on creating homes that are practical, beautifully finished and built to last.

House Renovations

Home renovations designed to improve the layout, finish, and overall feel of the property.

Extensions

Single and double storey extensions that create more usable space and add long-term value.

Loft Conversions

Loft conversions that turn unused roof space into practical, well-finished rooms.

Structural Works

Structural works carried out safely and professionally as part of wider building and renovation projects.

New Builds

New build projects delivered with care, quality materials, and attention to detail.

High-End Residential Projects

High-end residential work for clients looking for a more refined finish and a quality-led approach throughout.

How Your Project Moves Forward

Each project starts with a conversation, followed by a clear review of the work required, practical planning, and professional delivery on site.

Step 1

Initial Consultation

We start with a conversation to understand your project, your goals, and the type of work involved.

Step 2

Review and Planning

We assess the scope of work, discuss the practical details, and plan the best way to move the project forward.

Step 3

Build and Delivery

Once everything is agreed, the work is carried out with care, professionalism, and attention to detail.

Step 4

Project Completion

The project is completed to a high standard, with a focus on quality, finish, and making sure everything is delivered properly.

Need a builder for your renovation, extension, loft conversion, or new build?

Get in touch to discuss your plans.