Know if your building is actually strong
A fresh paint job hides a lot. A building strength test (called NDT — Non-Destructive Testing) tells you what's really inside your columns and slabs — without breaking anything open.
Don't buy a Guwahati flat based on looks alone
Every week, families in Guwahati buy resale flats in Beltola, Six Mile, and Zoo Road based on location and paint. They don't know the column in the master bedroom has hollow concrete. They find out after the first monsoon leak — or worse, after a tremor widens a hidden crack. A half-day test costs a fraction of your down payment and can save everything.
Services
Ultrasonic Pulse Velocity (UPV) test
Sound waves are sent through concrete — like an ultrasound. Weak, hollow, or cracked areas show up clearly on the reading.
When: When you need to know internal concrete quality — especially in columns, slabs, and load-bearing walls.
Risk: Hollow concrete can look perfect from outside. UPV finds the voids before they become collapse points.
Rebound Hammer test
A spring-loaded device measures surface hardness of concrete — indicating compressive strength.
When: Quick screening of multiple columns and slabs — common in pre-purchase inspections.
Risk: Soft concrete means the building was poorly mixed or has aged badly. It won't carry earthquake load as designed.
Crack mapping & risk report
We measure, photograph, and classify every crack — structural vs cosmetic — with a plain-language report.
When: After tremors, when buying a property, or when multiple cracks appear across the flat.
Risk: Not all cracks are equal. Without mapping, you either panic unnecessarily or ignore something fatal.
Pre-purchase building report
Full strength assessment before you pay a deposit — with clear pass/fail guidance on each structural element.
When: Before signing any resale flat or independent house purchase in Guwahati.
Risk: Banks check paperwork, not concrete quality. You're the one living there when something fails.
Who should get tested?
- Anyone buying a resale flat or house in Guwahati
- Owners of buildings 10+ years old — especially pre-2010 construction
- Flats where cracks appeared after recent tremors
- Housing societies planning major renovation or additional floors
- Landlords who want to protect tenants and avoid liability
What you'll receive
A clear report in plain language — not a 50-page engineering document. We mark which columns passed, which need attention, and what it will cost to fix. You decide whether to proceed with purchase, negotiate price, or walk away.
How RCC strength decreases with age
Carbonation, chloride ingress, and cover loss reduce effective strength over decades — often with no visible warning until spalling or a tremor widens cracks. Rebound hammer and UPV show what paint hides. A building that 'looks fine' at 20 years may have columns below design capacity.
When to retest — every 3 to 5 years
IS 456 and good international practice treat structural health as ongoing. After major tremors, visible new cracks, or completed retrofit work, retest sooner. For older occupied buildings, a 3–5 year NDT cycle catches corrosion and strength loss before emergency repair.
Other states already mandate audits
Maharashtra requires structural audits for certain ageing and dilapidated buildings. Delhi authorities have pushed periodic safety inspections on old structures. Kerala intensified assessments after flood damage. Assam has not yet mandated the same — but owners who wait for law often pay emergency prices after failure.
Buying or living in an older flat? Know the truth before it's too late.