Warranty covers parts replacement against manufacturing defect; AMC covers preventive maintenance, lubrication, service visits, consumables, and (on Comprehensive) wear-item parts coverage. They aren't alternatives — they complement each other. Most of our customers run Comprehensive AMC alongside the 12-month warranty from day one. Without AMC, the warranty is reactive only.

Essential: 4 preventive visits/year, breakdown response within 72 hours, parts not included. Comprehensive: 6 preventive visits/year, wear-item parts included (contactors, relays, ropes, sheaves), breakdown response within 24 hours (4 hours in metro), WhatsApp priority line. Premium 24×7: 12 visits/year, all Comprehensive inclusions plus 24×7 helpline + 4-hour response anytime + dedicated engineer + spare-parts buffer onsite. See /amc/ for the full comparison.

Yes on Premium 24×7 specifically — the contract includes 99.5%+ uptime commitment with documented penalty/credit structure if breached. The penalty credits back against your next AMC invoice; we've paid out credits when we've breached. Comprehensive AMC has response-time commitments but no formal SLA penalty. Essential has best-effort commitments.

Yes — we take over AMC for third-party-installed lifts regularly. The takeover process starts with a free safety audit. Based on what we find, we may need a one-time corrective service before AMC starts (chargeable separately). We'll never quietly take over a lift that's unsafe and let it run; the audit is honest. We service about 60+ Bengaluru apartments and similar volumes in other metros that we didn't originally install.

On Comprehensive AMC, one engineer typically covers 60-80 lifts within their service zone. On Premium 24×7 it drops to about 25-35 lifts per dedicated engineer. Below those ratios the engineer can't hold response-time commitments; above them the customer gets a less personal service. We staff to these ratios deliberately.

For Premium 24×7 customers (typically hospitals, OEM factories, premium commercial), we hold a kit of the high-failure-rate components — contactor sets, brake pads, door-operator belts, controller boards — physically at the customer's site or in a locker we keep within 30 minutes of the site. When a breakdown happens, the engineer arrives with parts already; no round trip to base.

ICU-adjacent hospital lifts: always. Multi-shift factory cargo lifts: yes. High-rise residential where stranded passengers in a breakdown is a real concern: yes. Single-tower commercial where the lift can be out for a day without operational cost: Comprehensive is fine. The cost gap is meaningful (₹18,000-25,000/year extra), so the decision should follow the cost of unplanned downtime.

Damage from misuse or overload, damage from unauthorised modification or third-party servicing during the AMC period, damage from civil-work defects (pit ingress water, machine-room temperature exceedance), damage from electrical-supply faults (surge, brown-out, single-phasing), Force Majeure events, and statutory inspection fees. Cosmetic damage noticed after the Commissioning Report is signed is also excluded.