House Extensions, Loft Conversions & Full Renovations in Hertfordshire & Buckinghamshire
Turn the home you already love into the one you’ve always dreamed of—without the stress.
At Steve Toms Design & Build, we specialise in seamless house extensions, loft conversions, garage conversions and whole-house refurbishments across Hertfordshire and Buckinghamshire – from Harpenden, St Albans and Berkhamsted to Beaconsfield, Gerrards Cross and Amersham.
Our Refurbishment & Extension Services
Why Homeowners Trust Us with Their Projects
Managed For You
A dedicated project manager from your very first conversation to final completion
Transparency
Clear, detailed quotes and realistic programmes – no surprises
Complete Service
Full design, planning and Building Control handled for you
Quality Team
Hand-picked local trades we’ve worked with for years
Respectful
Minimal disruption, clean sites and genuine respect for you and your home
Award-Winning
Two-time UK Property Awards winner (2020–2021 & 2024–2025)