WHY CHOOSE US
London’s trusted construction partner
- Fully insured & certified team
- Local knowledge – Belsize Park & beyond
- Transparent pricing, free quotes
- 5.0 ★ average from 21 reviews
Trusted by homeowners across Belsize Park, Hampstead & beyond. Expert craftsmanship, emergency response, and free quotes.
Years Experience
Projects Done
★ from 21 reviews
End‑to‑end project management from design to completion, ensuring quality and timeliness every step.
LEARN MORE →In‑depth site survey and personalised advice for renovations, extensions, and new builds across London.
LEARN MORE →Master tradespeople using premium materials — every finish is built to last and backed by our guarantee.
LEARN MORE →Rapid call‑out for urgent repairs, leaks, structural issues — available 7 days a week across London.
LEARN MORE →No‑obligation, detailed estimation for any project — residential or commercial, large or small.
LEARN MORE →Ongoing maintenance and warranty service to keep your property in peak condition long after completion.
LEARN MORE →
"AGB transformed our Victorian terrace in Belsize Park. Flawless loft conversion and stunning wet room. True professionals."
"Reliable, skilled, and cleaned up every day. Our Hampstead garden flat renovation came out better than we imagined. Highly recommend."
"From the free quote to the final walkthrough, everything was seamless. Really impressed with the aftercare support. First-rate work."