aid
assistance
boiler
business
check
clipboard
customer
document
expert
fix
gas
guy
handyman
hat
heater
heating
home
hot
hotwater
house
industrial
industry
inspection
job
maintenance
man
pipefitter
plumber
plumbing
profession
repair
repairman
service
technician
troubleshooter
up
upkeep
water
worker
working
workman
writing