A discreet, whole-home assessment of the things you can't see: air, water, materials, light and sound. Delivered as a clear report, with a plan to put right whatever we find.
Biarritz · Vevey · London and surrounding areas
Beautiful homes can still carry invisible burdens. We measure what matters and ignore what doesn't, so you get clarity rather than anxiety.
Particulates, VOCs, CO₂, radon and ventilation performance, room by room, day and night.
Drinking and bathing water assessed for metals, chlorine by-products and hardness.
Finishes, furnishings and legacy materials reviewed for off-gassing, lead and asbestos risk.
Daylight, evening spectrum and circadian quality across the rooms where you actually live.
Noise intrusion and the bedroom environment, assessed for the quality of your rest.
A single discreet visit, typically half a day. Professional instruments on site, samples sent to independent accredited laboratories, and monitors left in place where longer readings tell a truer story.
Every finding in plain language, benchmarked against WHO and national guidelines, and ranked by what genuinely deserves attention. No alarmism, no jargon, no pressure.
A prioritised plan you can hand to your own contractors, or have us manage end to end with vetted specialists. We re-test afterwards to confirm the result.
A focused assessment of air and water in your key living spaces.
Every room, all five domains, with monitoring over several days.
The Full Audit, plus managed remediation and annual re-testing.
From Biarritz and Anglet to Saint-Jean-de-Luz and the Basque hinterland. Coastal humidity and older stone properties are our home ground.
The Riviera from Lausanne to Montreux. Lakeside microclimates, chalet renovations and radon-aware assessments for alpine terrain.
Period townhouses to riverside towers. Urban air, legacy materials and the particular challenges of dense city living.
Maison Saine is run by two people who care about how a home is put together. One came to it through years of assessing risk for a living, the habit of asking what the evidence actually shows before anyone panics. The other through a life spent around materials, light and the way a beautiful space should also feel well.
We started this because the advice in this field is either frightening or vague, and rarely honest about what matters and what doesn't. Our promise is the opposite: measured, discreet, and straight with you about what we find.
Tell us about your home in confidence. We'll reply within one working day with availability and a considered recommendation, never a hard sell.
Start a conversationFully insured · Accredited laboratories · Strictly confidential