Plain guides to heating, cooling, indoor air and 5G home internet

Find HVAC Professionals

How to find and check an HVAC professional

Where to look for a licensed contractor near you, what to check before anyone starts, and how to compare quotes fairly. You contact contractors yourself; AirVexo does not send your details to anyone.

Start local

Where to look

  • Your state or city contractor licensing board
  • The dealer locator on the equipment maker’s site
  • Neighbours, local reviews and trade associations
  • Contractors listed by your utility for its rebate programs
Check my home
A worker in a hard hat and gloves checking equipment on a wall

Before anyone starts

What to check

  • A current licence, where your state or city requires one
  • Liability insurance and workers’ compensation
  • EPA Section 608 certification for anyone handling refrigerant
  • NATE certification, a voluntary sign of training
Check my home
A technician in a cap working on an electrical panel

Like for like

Comparing quotes

  • The same equipment, by brand and model number
  • A load calculation, not a guess from the old unit
  • Permit, removal of the old system and disposal included or not
  • The labour warranty, in writing, next to the maker’s
Check my home
Air conditioning condensers in a row on a flat roof

Checklist

Before work starts

Contract A written contract with the full scope of work
Payments A payment schedule tied to stages of the job
Permit The permit number, before the old system comes out
Dates A start date and an expected finish date
Handover A walk-through of the new system and its manuals

Keep reading

Related pages

AC units, furnaces, heat pumps, installs

Heating & Cooling Systems

Repairs, inspections, replacements

HVAC Maintenance & Repairs

Filtration, humidity, ventilation

Indoor Air Quality

Plan a smarter home climate

Heating 5G internet