Plumbers and heating and cooling contractors in Connecticut
339 plumbers and heating and cooling contractors are listed in Connecticut. 171 hold an active USDOT registration. The 6 counties listed below have at least 15 each and account for 322 of them.
Connecticut licenses plumbing contractors and journeyperson plumbers through its Department of Consumer Protection.1, 2, 3 Heating and cooling contractors in Connecticut hold their own licenses from the same department.4 Your local building department in Connecticut can tell you whether replacing a water heater, furnace or AC needs a permit.
Counties
| County | Contractors |
|---|---|
| New Haven County | 95 |
| Hartford County | 75 |
| Fairfield County | 70 |
| New London County | 51 |
| Windham County | 16 |
| Litchfield County | 15 |
Other counties in Connecticut
17 contractors in 2 counties with fewer than 15 listings.
Middlesex County 7 contractors
Appleby Plumbing Co LLC, Absolute Air Services, LLC, Gargano Heating & Cooling LLC, HL Bowman Inc Plumbing Heating & AC, Shoreline Plumbing & Heating LLC, T&S Home Heating, Tin Man Mechanical & Building Services LLC
Tolland County 10 contractors
Bell's Economy Home Heating Oil, Benjamin Franklin Plumbing, CNM Heating Cooling & Piping LLC, Deal Heating Oil Inc, Ellington Oil Company Preferred Energy Violette Mechanical, Hollister Plumbing & Heating Inc, Hugh's Mechanical Equipment LLC, Mom and Pop Plumbing & Drain Service LLC, Ray Page Plumbing, Inc., Somers Mechanical Services LLC
Plumbing and HVAC rules in Connecticut
- Heating and cooling license
State license.4
- State codes
Connecticut's plumbing code is the 2021 International Plumbing Code, part of the 2022 Connecticut State Building Code in effect since October 1, 2022, with no local amendments.5 Connecticut's mechanical code is the 2021 International Mechanical Code, part of the same state building code.5
- Replacement permits
Ask your local building department whether replacing a water heater, furnace or AC needs a permit where you live.
What plumbing and HVAC work costs in Connecticut
These are published national ranges, not quotes. Local quotes vary.
- A plumber's hourly rate
- $45 to $200 an hour; most charge $70 to $150 (HomeAdvisor, Fixr, HomeGuide)
- A plumber's service call
- $50 to $300 a visit, which often covers the first hour (HomeAdvisor, Fixr, HomeGuide)
- After-hours or emergency call
- about $100 to $300 added to the call, or about $150 to $350 an hour (HomeAdvisor, Fixr, HomeGuide)
- Burst or leaking pipe repair
- $200 to $3,000; the guides' averages run $500 to $1,200 (HomeAdvisor, Fixr, HomeGuide)
- Clearing a sink, tub or toilet drain
- $100 to $275 (HomeAdvisor, Fixr, HomeGuide)
- Clearing the main line
- $175 to $800; typically $350 to $650 (HomeAdvisor, Fixr, HomeGuide)
- Hydro jetting
- $350 to $1,400, depending on the line and the blockage (HomeAdvisor, Fixr, HomeGuide)
- Gas tank water heater
- $700 to $2,700 installed; about $1,900 on average (HomeAdvisor, Fixr, HomeGuide)
- Tankless water heater
- $1,600 to $5,600 installed for gas, depending on gas line and venting work (HomeAdvisor, Fixr, HomeGuide)$850 to $3,000 installed for electric, before any panel upgrade ($850 to $1,700) (Fixr, HomeGuide)
- Heat pump water heater
- $2,000 to $4,600 installed in place of an electric tank; more when it replaces gas (HomeAdvisor, Fixr, HomeGuide)
- Sewer camera inspection
- $125 to $500 (HomeAdvisor, Fixr, HomeGuide)
- Sewer line replacement
- about $1,400 to $5,300 for a typical line (HomeAdvisor, HomeGuide)$50 to $250 a linear foot (HomeAdvisor, HomeGuide)
- Replacing central AC on existing ducts
- $3,900 to $8,000; about $6,000 on average (HomeAdvisor, Fixr, Forbes Home)
- Swapping a heat pump on existing ducts
- $4,000 to $8,000; a 3-ton system about $3,900 to $6,200 (HomeAdvisor, Forbes Home, HomeGuide)
- A whole-home heat pump system
- commonly $14,000 or more (NYSERDA, Massachusetts EEAC, Fixr, HomeGuide)
- Replacing a gas furnace
- $3,800 to $6,200 at standard efficiency (HomeGuide, HomeAdvisor, Fixr, Forbes Home)$5,200 to $12,000 at high efficiency (90% AFUE and up) (HomeGuide, HomeAdvisor, Fixr, Forbes Home)
- Replacing an electric furnace
- $1,600 to $8,000, with a like-for-like swap at the low end (Fixr, HomeAdvisor)
- A single-zone mini-split
- $2,000 to $5,000 (HomeGuide, Fixr, Forbes Home)
- A multi-zone mini-split
- $3,000 to $14,000 for 2 to 4 zones (HomeGuide, Fixr, Forbes Home)
- An HVAC tune-up
- $70 to $350 a visit; a basic tune-up is often about $100 to $200 (HomeGuide, HomeAdvisor, Fixr)
Ranges from HomeAdvisor, HomeGuide, Fixr, Forbes Home, NYSERDA and the Massachusetts EEAC, checked September 2026.