Qualified surveyors
Chartered and accredited professionals — RICS‑aligned approach throughout.
About us
Calm, careful and independent — the people you call when something looks wrong.
Subsidence Investigation Services is an independent UK practice specialising in the investigation and diagnosis of subsidence, ground movement and foundation problems. We work for homeowners, insurers, solicitors and property professionals.
Our approach
Experience that takes the worry out of subsidence.
With more than 25 years of combined experience investigating subsidence across the UK, we've seen virtually every kind of crack, every kind of soil and every kind of cause. That experience matters: most cases turn out to be far less serious than they first appear, and the right diagnosis can save thousands.
We're independent — we don't sell underpinning, repairs or building works. Our only job is to investigate the cause and recommend the proportionate response. That independence is why insurers, solicitors and homeowners trust our reports.
Every property is assigned to a qualified surveyor with direct experience of the soil, foundation and building type in question. You'll deal with a real person from the first call to the final report.
Why clients choose us
Reliable, qualified, plain‑speaking.
Independent advice
No conflicts of interest. We don't sell the repair work we recommend.
Insurance‑ready reports
Reports written to the standard insurers and lenders expect.
Evidence‑based
Diagnosis grounded in soil, drainage and structural evidence — not guesswork.
Trusted across the UK
Homeowners, insurers, solicitors and managing agents nationwide.
Calm & supportive
We know it's stressful. We take the time to explain and reassure.