Your home, handled

Stop Googling when to
replace your air filter.

Castellan scans your home, builds your maintenance schedule, and tells you exactly what to do and when so nothing falls through the cracks.

Free to start. No credit card required.

How it works

1
Snap photos of your home
Rooms, appliances, HVAC, and yard - Castellan's AI identifies everything.
2
Get your maintenance plan
Auto-generated schedules with reminders. No research required.
3
Stay ahead of repairs
Find the right filter, the right manual, and the right contractor in seconds.
Your home, protected
C
Urgent task
Your HVAC filter needs to be replaced before airflow gets worse.
Order on Amazon
Walmart or Home Depot can be swapped in here.
Home score
60%
Upcoming services
2
Scheduled services
This week
Replace HVAC filter
Urgent task completed after the replacement arrives
Priority
Amazon delivery arriving soon
Replacement filter delivers tomorrow morning
Shipping
HVAC pro scheduled
Technician booked for Friday at 2:00 PM
Booked
Spring gutter check
Seasonal suggestion to prevent overflow during spring rain
Suggested
No spam, ever Cancel anytime AI-powered Built by homeowners