1156475 ONTARIO INC O/A B & G HVAC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #19 296258 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
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1527812 ONTARIO INC. O/A KHC HEATING & COOLING
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #14 284596 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
1540950 ONTARIO INC O/A A-PLUS AIR SYSTEMS
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 117232 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
15628164 CANADA INC O/A PROVEN PLUMBING AND MECHANICAL
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #27 000257 · Contractor / Plumbing
Last seen May 15, 2026
1677014 ONTAIO INC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #24 305309 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
1749657 ONTARIO INC. O/A GAS WORKS
Municipal licenceGas FittersHamilton, ON
Gas FittersGeneral ContractorsHVAC
City of Hamilton · #27 000223 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
1826298 ONTARIO INC. O/A DATCOR MECHANICAL
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #15 281286 · Contractor / Plumbing
Last seen May 15, 2026
1932294 ONTARIO INC O/A GUEST PLUMBING & HEATING
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #15 287979 · Contractor / Plumbing
Last seen May 15, 2026
1937816 ONTARIO INC O/A BRH MECHANICAL
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #16 290807 · Contractor / Plumbing
Last seen May 15, 2026
2469810 ONTARIO INC O/A HARMAN HEATING & COOLING SERVICES
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #27 000000 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
2652186 ONTARIO INC. O/A MCCLUSKEY'S HVAC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #18 294923 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
A-1 PLUMBING & MECHANICAL
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #15 270322 · Contractor / Plumbing
Last seen May 15, 2026
A. BATTLEFIELD PLUMBING & HEATING
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #16 117511 · Contractor / Plumbing
Last seen May 15, 2026
ADAM'S AIR SYSTEMS
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 286138 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
AIR KOOL LIMITED
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #14 283743 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
AIR TECH INSTALLATION INC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 290425 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
AIR TECH SERVICES INC.
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 278165 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
AIRE ONE WEST HEATING & COOLING
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #14 285447 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
ALL TYPE HEATING & PUMP SERVICE INC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #19 295560 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
ALL WEATHER HEATING AND COOLING
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #14 283692 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
ALLIED MECHANICAL
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 117220 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
ALPINE MECHANICAL SERVICES
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 278263 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
AMBER LEE LTD. O/A ALL MECHANICAL
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 156308 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
AMETHYST SERVICES 2006 INC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 287231 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
APPLEWOOD AIR CONDITIONING LIMITED
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #16 290912 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
ARCHIE HORN & SON LTD
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #23 304108 · Contractor / Plumbing
Last seen May 15, 2026 · 2 source records
ARVIN AIR SYSTEMS INC.
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 117229 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
ASHLAND HEATING & AIR CONDITIONING INC.
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 117218 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
AVANTGARDE MECHANICAL
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #27 000013 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
BASIL MECHANICAL SERVICES LIMITED
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #14 280787 · Contractor / Plumbing
Last seen May 15, 2026
BEECHWOOD REFRIGERATION
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 220916 · Contractor / Heating, Ventilation A/C
Last seen May 15, 2026
BESSELING MECHANICAL INC.
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #15 278162 · Contractor / Plumbing
Last seen May 15, 2026
BILL WELMERS & SONS HEATING AND AIR CONDITIONING INC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 117244 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
BINBROOK PLUMBING & HEATING (1997) LTD
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #14 284748 · Contractor / Plumbing
Last seen May 15, 2026
BIRD INFRASTRUCTURE LTD
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #27 000179 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026 · 2 source records
BLACK & MCDONALD LIMITED
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #15 281100 · Contractor / Plumbing
Last seen May 15, 2026 · 2 source records
BML MULTI TRADES GROUP LTD.
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #14 268138 · Contractor / Plumbing
Last seen May 15, 2026 · 3 source records
BOSANAC HEATING & ELECTRIC
Municipal licenceElectriciansHamilton, ON
ElectriciansGeneral ContractorsHVAC
City of Hamilton · #15 143402 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
BUCHANAN PLUMBING AND HEATING
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #15 117450 · Contractor / Plumbing
Last seen May 15, 2026
CALEDON CREEK MECHANICAL LIMITED
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #15 281175 · Contractor / Plumbing
Last seen May 15, 2026
CARMICHAEL ENGINEERING LTD.
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #14 276261 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
CHADWICK'S AND HACK'S
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #15 288260 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
CHAMBERLAIN HOME & BUILDING SERVICES
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #14 178302 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
CHAMBERLAIN PLUMBING & MECHANICAL INC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #21 298694 · Contractor / Plumbing
Last seen May 15, 2026
CLARE MOORE REFRIGERATION
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #14 215116 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
COMFORT PLUS HEATING & AIR CONDITIONING
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #14 279975 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
COMPASS MECHANICAL GROUP LTD
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #17 293176 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
COVE MECHANICAL INC.
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #15 279750 · Contractor / Plumbing
Last seen May 15, 2026
D.A.D HVAC
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVAC
City of Hamilton · #23 303714 · Contractor / Heating, Ventilation and Air Conditionin
Last seen May 15, 2026
DALCRO MECHANICAL CONTRACTING LTD
Municipal licenceGeneral ContractorsHamilton, ON
General ContractorsHVACPlumbers
City of Hamilton · #23 304907 · Contractor / Plumbing
Last seen May 15, 2026