| One & Done Plumbing Inc |
Azusa, 91702 CA |
LicensedC36 |
1128511 |
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| One Affordable Backflow Inc |
San Diego, 92123 CA |
LicensedC36 |
1137916 |
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| One Air Florida Inc |
Sebring, 33875 FL |
LicensedCertified Air Conditioning Contractor |
CAC1818946 |
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| One Call Air Conditioning and Heating, Inc |
Port St Lucie, 34983 FL |
LicensedCertified Air Conditioning Contractor |
CAC1817403 |
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| One Call Construction, Inc. |
Key West, 33040 FL |
LicensedCertified Air Conditioning Contractor · Certified Plumbing Contractor CFC1429276 |
CAC1818878 |
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| One Call Florida, Inc |
Stuart, 34997 FL |
LicensedCertified Plumbing Contractor |
CFC1430774 |
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| One Call Heating & Cooling |
Oxford, 30054 GA |
LicensedConditioned Air Contractor |
CN210771 |
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| One Call Heating & Cooling LLC |
McDonough, 30253 GA |
LicensedHVAC (Conditioned Air) Contractor |
CN210771 |
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| One Call Heating and Cooling,Inc |
Port St. Lucie, 34983 FL |
LicensedCertified Air Conditioning Contractor |
CAC1822306 |
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| One Call Mechanical |
Lancaster, 75146 TX |
RegisteredHVAC Mechanical Contractor · Air Conditioning Contractor ME007561_004371772-001 · Master Plumber PL123082_104242126-002 |
3171427 |
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| One Call Plumbing & Backflow |
Alva, 33920 FL |
LicensedCertified Plumbing Contractor |
CFC1430047 |
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| One Call Plumbing Inc |
Whittier, 90606 CA |
LicensedC36 |
1071104 |
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| One Call Plumbing LLC |
Columbus OH |
LicensedPlumbing contractor |
|
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| One Choice Heating and A/C LLC |
Baldwin City, 66006 KS |
LicensedClass D-M Mechanical Contractor |
2026-0001696 |
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| One Choice Mechanical LLC |
Louisville, 40272 KY |
RegisteredHVAC Contractor |
19630-BUS |
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| One Clear Choice Heat and Air LLC |
Gainsville, 30506 GA |
LicensedConditioned Air Contractor |
CN211548 |
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| One Construction LLC |
Las Vegas, 89118 NV |
LicensedC-1 Plumbing and Heating |
0086838 |
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| One Cool LLC |
Tampa, 33634 FL |
LicensedCertified Air Conditioning Contractor |
CAC1821459 |
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| One Cool Solution LLC |
Queen Creek, 85142 AZ |
LicensedCR-39 Air Conditioning and Refrigeration |
359387 |
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| One Day Complete Repipe Inc |
San Jose, 95121 CA |
LicensedB, C36, C42 |
885692 |
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| One Day Kitchen and Bath LLC |
Avondale, 85323 AZ |
LicensedCR-37 Plumbing |
361898 |
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| One Day Kitchen and Bath LLC |
Phoenix, 85042 AZ |
LicensedCR-39 Air Conditioning and Refrigeration |
365486 |
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| One Degree Air Condition & Refrigeration LLC |
Tampa, 33634 FL |
LicensedCertified Air Conditioning Contractor |
CAC1815932 |
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| One Drop Landscape and Irrigation Services |
Fort Worth TX |
RegisteredPlumbing Registration |
P012453 |
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| One Empire Plumbing LLC |
Miami, 33165 FL |
LicensedCertified Plumbing Contractor |
CFC1434245 |
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| One Flow Backflow Inc |
Brea, 92823 CA |
LicensedC36 |
1072132 |
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| One Flush Plumbing Co LLC |
Brookpark, 44142 OH |
RegisteredPlumbing Contractor · Plumbing Contractor Registration CONT-002334-2026 |
CR19028212 |
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| One Heat & Air |
Oklahoma City OK |
LicensedMechanical Contractor |
CR-25887-L |
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| One Hour AC & Heating |
Houston, 77041 TX |
RegisteredMechanical and HVAC Contractor |
CON-002628-2026 |
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| One Hour Air / Airwise HVAC |
Fort Worth, 76106 TX |
LicensedMN - B License/Env AC/Htg+Endorsement |
W001400 |
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| One Hour Air Conditioning & HeatingLicence verified |
Las Vegas, 89120 NV |
LicensedC-21 Refrigeration and Air Conditioning |
0051349 |
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| One Hour Air Conditioning & Heating |
Bradenton, 34208 FL |
LicensedCertified Air Conditioning Contractor |
CAC1817215 |
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| One Hour Air Conditioning & Heating |
Gulf Breeze, 32563 FL |
LicensedCertified Air Conditioning Contractor |
CAC1816750 |
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| One Hour Air Conditioning & Heating #213 |
Deerfield Beach, 33064 FL |
LicensedCertified Air Conditioning Contractor |
CAC057376 |
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| One Hour Air Conditioning & Heating Ocala Fl |
Ocala, 34479 FL |
LicensedCertified Mechanical Contractor |
CMC1249436 |
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| One Hour Air Conditioning and Heating |
Lake Worth, 33463 FL |
LicensedCertified Air Conditioning Contractor |
CAC1820780 |
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| One Hour Heating & Air |
Loganville, 30052 GA |
LicensedHVAC (Conditioned Air) Contractor |
CR109881 |
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| One Hour Heating & Air |
Loveland, 80538 CO |
LicensedMechanical Contractor |
M01002902 |
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| One Hour Heating & Air Conditi |
St Charles, 60174 IL |
RegisteredHVAC |
CONT-000043-2023 |
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| One Hour Heating & Air Conditioning |
Vallejo, 94592 CA |
LicensedC20 |
1151576 |
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| One Hour Heating & Air Conditioning |
San Antonio, 78261 TX |
RegisteredDuct Testing |
HAE-25-TACLA00146503E |
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| One Hour Heating & Air Conditioning |
Avon, 44011 OH |
RegisteredHVAC Contractor |
CR15001377 |
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| One Hour Heating & Air Conditioning |
San Ramon, 94583 CA |
LicensedC20 |
1160719 |
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| One Hour Heating & Air Conditioning |
Deer Park, 11729 NY |
LicensedMaster Plumber |
MP-52888 |
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| One Hour Heating & Air Conditioning DBA Authority Brands Services |
Loveland, 80538 CO |
LicensedCommercial mechanical contractor · Registered plumbing contractor PL3710 |
CL2932 |
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| One Hour Heating & Air Conditioning of Elk Grove |
Elk Grove, 95624 CA |
LicensedC20 |
1143074 |
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| One Hour Heating & Air Conditioning of Kannapolis |
Kannapolis, 28081 NC |
LicensedMechanical Contractor |
14169 |
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| One Hour Heating & Air of the Triad (DBA) |
Asheboro, 27203 NC |
LicensedMechanical Contractor |
32418 |
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| One Hour Heating and Air Conditioning |
Orange, 92867 CA |
LicensedC20 |
1139941 |
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| One Hour Heating and Air Conditioning |
Mission Viejo, 92691 CA |
LicensedC20 |
1140696 |
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| One Hour Heating and Air Conditioning |
Temecula, 92590 CA |
LicensedC20 |
1159348 |
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| One Hour Heating and Air Conditioning |
Bridgeport, 06606 CT |
LicensedHeating, Piping & Cooling Operating Engineer Journeyperson · Heating, Piping & Cooling Unlimited Contractor HTG.0396954-S1 |
HTG.0410340-OE2 |
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| One Hour Heating and Air Conditioning |
Columbus OH |
LicensedHeating and HVAC contractor |
|
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| One Hour Heating and Air Conditioning of Charlotte(Dba) |
Charlotte, 28273 NC |
LicensedMechanical Contractor |
32947 |
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| One Hour Heating and Air Conditioning of North Sumter County |
Summerfield, 34491 FL |
LicensedCertified Air Conditioning Contractor |
CAC1823590 |
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| One Hour Heating and Air Conditioning of Pleasant Hill |
Pleasant Hill, 94523 CA |
LicensedC20 |
1138012 |
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| One Hour Htg & A/C of Ctrl Sea |
Issaquah, 98027 WA |
LicensedHeating/Vent/Air-Conditioning and Refrig (Hvac/R) |
ONEHOHH741CJ |
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| One Hour Htg & A/C, |
Lees Summit, 64063 MO |
LicensedClass D Master Mechanical Contractor |
2907 |
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| One Kingdom HVAC LLC |
West Palm Beach, 33409 FL |
LicensedCertified Air Conditioning Contractor |
CAC1822897 |
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| One Line Plumbing |
Centennial, 80112 CO |
RegisteredPlumbing |
|
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| One Love Plumbing LLC |
Tampa, 33606 FL |
LicensedCertified Plumbing Contractor |
CFC1433033 |
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| One Man Plumbing |
Rio Vista, 94571 CA |
LicensedC36 |
1142591 |
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| One Mechanical |
Canton, 30115 GA |
LicensedConditioned Air Contractor |
CR109827 |
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| One Nation Heating & Air |
Centennial CO |
LicensedGeneral - HVAC |
CL-007084-2026 |
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| One Nation LLC |
Indianapolis, 46234 IN |
RegisteredHVAC Air Conditioning Class B |
|
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| One Nation LLC |
Hollywood, 33020 FL |
LicensedCertified Air Conditioning Contractor |
CAC1821963 |
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| One Nation Under God Excavation LLC |
Golden Valley, 86413 AZ |
LicensedCR-41 Septic Tanks and Systems |
366038 |
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| One Piece Mechanical LLC |
Mansfield, 76063 TX |
RegisteredAir Conditioning Contractor |
ME148337_190281046-002 |
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| One Piece Mechanical LLC |
Mansfield, 76063 TX |
LicensedMN - B License/Env AC/Htg+Endorsement |
W008925 |
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| One Plumbing LLC |
Lakewood, 80227 CO |
LicensedPlumbing Contractor · Plumbing Contractor PLM24-0153 |
P01009491 |
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| One Plumbing LLC |
Centennial CO |
LicensedPlumbing |
CL-006260-2025 |
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| One Plumbing Solution LLC |
Woodbridge, 22193 VA |
LicensedClass C contractor, plumbing |
2705168072 |
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| One Point Heating and Cooling LLC |
New Palestine, 46163 IN |
RegisteredHVAC Air Conditioning Class A |
|
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| One Pro Tech LLC |
Aurora, 80018 CO |
RegisteredMechanical Systems · Class C Mechanical Contractor MEC25-0123 |
|
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| One Season Heating & Cooling Inc |
Moseley, 23120 VA |
LicensedClass B contractor, HVAC |
2705133323 |
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| One Season Refrigeration LLC |
Kissimmee, 34741 FL |
LicensedCertified Air Conditioning Contractor |
CAC1825250 |
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| One Shot Air Conditioning LLC |
Miami, 33183 FL |
LicensedCertified Air Conditioning Contractor |
CAC1824732 |
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| One Shot Plumbing and Drains LLC |
Anaheim, 92804 CA |
LicensedC36 |
1148266 |
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| One Site Construction LLC |
Buckeye, 85326 AZ |
LicensedCR-41 Septic Tanks and Systems |
357380 |
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| One Solution Plumbing & Drain |
Rio Vista, 94571 CA |
LicensedC36 |
1157852 |
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| One Source Air, LLC |
Fort Myers, 33913 FL |
LicensedCertified Air Conditioning Contractor |
CAC1822060 |
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| One Source Construction Inc |
Fort Myers, 33913 FL |
LicensedCertified Plumbing Contractor |
CFC1431504 |
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| One Source Engineering Inc |
Redwood City, 94061 CA |
LicensedC4 |
755696 |
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| One Source Enterprises Inc |
Locust Grove, 30248 GA |
LicensedPlumbing Contractor |
MP001607-1 |
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| One Source Enterprises, Inc |
Hampton, 30228 GA |
LicensedMaster Plumber, Non-Restricted |
MP001607 |
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| One Source Enterprises, Inc |
Griffin, 30223 GA |
LicensedMaster Plumber, Non-Restricted |
MP209393 |
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| One Source Enterprises, Inc. |
Brooks, 30205 GA |
LicensedPlumbing Contractor |
MP001607 |
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| One Source Heating and Cooling LLC |
Fort Mohave, 86427 AZ |
LicensedCR-39 Air Conditioning and Refrigeration |
309371 |
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| One Source Home Service, LLC |
Colorado Springs, 80907 CO |
LicensedMechanical Contractor (Commercial) · Plumbing Contractor (State Master) |
|
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| One Source Mechanical LLC |
Shipman, 22971 VA |
LicensedClass B contractor, HVAC |
2705147682 |
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| One Source Plumbing |
Duncanville, 75137 TX |
RegisteredPlumbing Contractor |
3308837 |
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| One Source Plumbing |
Burleson, 76028 TX |
RegisteredAir Conditioning Contractor |
TL-AC-000158 |
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| One Source Plumbing & Rooter IncLicence verified |
San Francisco, 94133 CA |
LicensedC36 |
988995 |
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| One Source Plumbing LLC |
Dallas, 75204 TX |
RegisteredPlumbing Contractor |
CR-002091-2022 |
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| One Step Air LLC |
Ponte Vedra, 32081 FL |
LicensedCertified Air Conditioning Contractor |
CAC1824379 |
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| One Stop Air Mechanical Corp |
Leesburg, 34748 FL |
LicensedCertified Air Conditioning Contractor |
CAC1821684 |
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| One Stop Cooling and Heating LLC |
Las Vegas, 89123 NV |
LicensedC-21B Air Conditioning |
0092666 |
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| One Stop Heating and Cooling Inc |
Cerritos, 90703 CA |
LicensedC20 |
1099916 |
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| One Stop Home Services LLC |
Williamsburg, 23185 VA |
LicensedClass A contractor, plumbing |
2705185136 |
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| One Stop Housing Development & Construction, LLC |
Lauderhill, 33351 FL |
LicensedCertified Plumbing Contractor |
CFC1431860 |
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