House extensions and loft conversions in London
Fully managed from design to build.
Fully managed · an agreed contract sum · Fast response
- FMB Member
- 10-Year Structural Warranty
- Vetted & Work Inspected
- Fully Insured
- Dedicated Project Manager
- Weekly Updates
Trusted Design & Build Experts in London
Trovix Group specialises in high-end house extensions, loft conversions, and full home renovations across Greater London.
From rear extensions and side returns to complete loft transformations, our experienced team delivers beautifully designed spaces built to last.
Why Homeowners Choose Trovix
Trusted by homeowners across London for quality construction, transparent pricing, and fully managed design-and-build projects.
5-Star Rated London Builder
Consistently rated highly by homeowners across London.
10-Year Structural Warranty
Trovix Group provides a 10-year structural warranty on new-build homes, house extensions, loft conversions and structural alteration works, subject to the scope and terms set out in the project contract.
Dedicated Project Manager
A single point of contact guiding your project from start to finish.
Fixed Timelines & Weekly Updates
Clear timelines with regular updates so you always know the progress.
Fully Managed Design & Build
We manage design, planning permission, and construction under one team.
Federation of Master Builders Member
Member No. 170642, vetted, work inspected, and independently verifiable.
