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Prevent water damage before it starts.
Save on home insurance with AquaGuard leak protection.
Bundle and save
Kits cost less than buying each device.
Free shipping
On every order in the US.
Risk-free returns
30-day, no-questions-asked return policy.
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Pick your protection.
Bundle and save. Every kit includes the free Custos app, with no subscription required.
- ✓Free shipping
- ✓30-day risk-free returns
- ✓No subscription
- ✓2-year warranty
Ultimate Protection Bundle
Whole-home protection, even during power outages: a smart shutoff valve, gateway, battery backup and five leak sensors with three cradles.
- ✓AquaGuard
- ✓Custos Gateway
- ✓AquaSensor x 5
- ✓Smart Backup Battery
- ✓Cradle x 3
- ✓Custos App
Starter Protection Kit
Essential protection for your home: a smart shutoff valve, gateway and three leak sensors, with instant call, text and app alerts.
- ✓AquaGuard
- ✓Custos Gateway
- ✓AquaSensor x 3
- ✓Cradle x 1
- ✓Custos App
Add-ons & sensor bundles
Already have AquaGuard, or want more coverage? Mix and match.
Devices
- AquaGuard
- $199.99
- Custos Gateway
- $99.99
- Smart Backup Battery
- $69.99
AquaSensor packs
- 1-Pack
- $39.99
- 2-Pack
- $64.99
- 3-Pack
- $84.99
- 4-Pack
- $99.99
- 5-Pack
- $114.99
Sensor bundles (with Gateway)
- 3 Sensors + Gateway
- $144.99
- 4 Sensors + Gateway
- $159.99
- 5 Sensors + Gateway
- $174.99
Cradles
- 1-Pack
- $14.99
- 2-Pack
- $24.99
- 3-Pack
- $34.99
Build your own kit
Take our 30-second quiz to build a tailored water protection system for your home, with bundle savings.
Common places to put a sensor
- Water heater
- Washing machine
- Dishwasher
- Kitchen sink
- Bathroom sinks & toilets
- Refrigerator ice maker
- Water softener or filter
- Sump pump
Save on insurance
Save up to 15% on your home insurance.
Custos issues a Water Leak Protection Certificate directly in the app. Enter your insurance details, generate the certificate and share it with your insurance agent.
Many insurers offer 5-15% discounts for water protection systems. Ask your agent what's available on your policy.