CORNERSTONE COMFORT SOLUTIONS INC
dba MCLAIN HEATING COOLING AND ELECTRICAL
KINGSPORT, TN
01/09/2026
1
Power Units
3
Drivers
Current
as of today
Active · 1 power units · 3 drivers · Kingsport, TN
2026
Oct 2026
Fleet reduced 12 → 1 power units
Oct 2026
Driver count changed 13 → 3
Jul 2026
Fleet grew 1 → 12 power units
Jul 2026
Driver count changed 3 → 13
Feb 25, 2026
MCS-150 biennial update filed
Reported power units: 1
Reported drivers: 3
Reported trailers: 1
Jan 9, 2026
DOT registered
Company registered with the FMCSA.
Jan 9, 2026
MCS-150 biennial update filed
Reported power units: 1
Reported drivers: 3
Reported trailers: 1