Loft Conversions and Home Extensions
Building Space, Building Value
From first sketch to final finish, we deliver high-quality building, loft conversions and extensions designed to add real space and lasting value
About Us
STL are your local loft conversion and extension specialists based in Sunbury-on-Thames, working across Surrey, South West London and the surrounding areas.
We help homeowners unlock the full potential of their property by creating high-quality, well-designed living spaces that add real, lasting value.
As a local business, we rely heavily on our reputation and take great pride in delivering a friendly, professional service with clear communication at every stage of the build. All projects are fully managed from start to finish, with a clean and respectful approach on site to ensure minimal disruption and a smooth, stress-free experience for our clients.
Whether you’re considering a loft conversion, a rear or side extension, or a larger home improvement project, we work closely with you to understand how you live and to design a space that truly works for your home.
Why Choose Us?
Established local specialists based in Sunbury-on-Thames, trusted by homeowners across Surrey and South West London
Fully managed projects, carefully overseen from first conversation through to completion
Clear, open communication at every stage, so you always know what’s happening and when
Respectful, tidy working practices in lived-in homes
High standards of workmanship, with close attention to detail
A reliable, personable team who genuinely care about delivering the right result
Fully insured for your peace of mind
Our Services
Loft Conversions
Home Extensions
Full Home Refurbishments
Groundworks and Drainage
Full Project Management
Planning and Structural Engineering
Domestic & Commercial
Our Projects
Please see a selection of our projects
