Licensed & insured
Florida contractor credentials maintained and verified; full liability and workers’ compensation coverage.
About Coss Heating
We’re a San Bernardino HVAC team focused on honest recommendations, code-compliant work, and crews who treat your home like their own.
Our story
Coss Heating started as a two-truck operation serving neighbors during brutal summer heatwaves. Today we’re a full-service shop—still obsessed with the same things: showing up on time, explaining options in plain English, and standing behind every connection we braze and every charge we set.
How we work
- Load calculations first — no guesswork on system sizing.
- Photo documentation — you see what we see, before and after.
- Warranty support — we coordinate manufacturer coverage and our own workmanship guarantee.
Credentials & standards
Your safety and permit compliance are non-negotiable.
EPA-certified
Proper refrigerant handling, recovery, and documentation on every job that requires it.
Ongoing training
Technicians train on new inverter systems, smart controls, and ventilation best practices.
Join our client family
Ask about maintenance plans, multi-property rates, or a walkthrough for a new build.
Contact us