Explore
Saved
Log in

Fair pricing Local business Licensed 4+ stars Seen on Reddit Seen on Nextdoor Seen on the news Heat pumps & mini-splits Central AC Boilers Woman owned Responsive 24/7 emergency

What does heating and cooling work cost in Killingly? See typical prices →

How to hire hvac contractors in Connecticut — read the guide →

A trustworthy directory of home contractors — every claim sourced, licenses verified, rankings that can't be bought.

Trades in Killingly, CT

Plumbers in Killingly, CT
Electricians in Killingly, CT
HVAC Contractors in Killingly, CT
Roofers in Killingly, CT
General Contractors in Killingly, CT
Bathroom Remodelers in Killingly, CT
Kitchen Remodelers in Killingly, CT
Window, Siding & Gutter Contractors in Killingly, CT
Fence Contractors in Killingly, CT
Landscapers in Killingly, CT
Painters in Killingly, CT
Waterproofing Contractors in Killingly, CT
Handymen in Killingly, CT
Carpenters in Killingly, CT
Flooring Contractors in Killingly, CT
Exterminators in Killingly, CT
Home Inspectors in Killingly, CT
Movers in Killingly, CT
House Cleaners in Killingly, CT
Pool Cleaners in Killingly, CT
Masonry Contractors in Killingly, CT

HVAC Contractors nearby

HVAC Contractors in Greater Boston
HVAC Contractors in Merrimack Valley
HVAC Contractors in North Shore
HVAC Contractors in MetroWest
HVAC Contractors in Greater Worcester
HVAC Contractors in South Shore
HVAC Contractors in Southeastern Massachusetts
HVAC Contractors in South Coast
HVAC Contractors in Cape Cod
HVAC Contractors in Greater Nashua
HVAC Contractors in Greater Providence
HVAC Contractors in Greater Springfield
HVAC Contractors in Greater Portland
HVAC Contractors in Greater Manchester
HVAC Contractors in The Berkshires
HVAC Contractors in Seacoast
HVAC Contractors in Lakes Region & Central NH
HVAC Contractors in Monadnock & Upper Valley
HVAC Contractors in North Country
HVAC Contractors in South County
HVAC Contractors in East Bay & Newport
HVAC Contractors in Greater Hartford
HVAC Contractors in Greater New Haven
HVAC Contractors in Fairfield County
HVAC Contractors in Eastern Connecticut
HVAC Contractors in Litchfield Hills
HVAC Contractors in Southern Maine
HVAC Contractors in Lewiston-Auburn & Western Maine
HVAC Contractors in Midcoast & Mid-Maine
HVAC Contractors in Bangor & Downeast
HVAC Contractors in Aroostook County
HVAC Contractors in Champlain Valley
HVAC Contractors in Central Vermont
HVAC Contractors in Northeast Kingdom
HVAC Contractors in Southern Vermont
HVAC Contractor cost in Killingly, CT
Guide to hiring hvac contractors in Connecticut

© 2026 Tavlee Inc. All rights reserved.About Press & Media Guides Blog Privacy Terms Support Center

Ratings weighed across every source · state-license verified · citations you can open.

HVAC Contractors in Killingly, CT — Reviewed & Sourced | Tavlee

36 hvac contractors serving Killingly, CT

HVAC Contractors serving Killingly, CT

Petro Home Services work photo

Petro Home Services

100 years in business1.4

Aurora Fuel Co. Inc. work photo

Aurora Fuel Co. Inc.

Service call where two men explained and fixed the problem2.6

Regan Heating and Air Conditioning work photo

Regan Heating and Air Conditioning

Eric traced the source of a leak2.4

JV Mechanical Contractors, Inc. work photo

JV Mechanical Contractors, Inc.

Family-run firm since 19773.6

Northeast Oil & Propane work photo

Northeast Oil & Propane

Same-night oil delivery after business hours3.0

Atlantis Comfort Systems work photo

Atlantis Comfort Systems

Furnace check with flame sensor and CO tests3.9

IM

Ideal Mechanical

Best split-system price one Reddit commenter found3.7

R.E. Coogan Heating Inc work photo

License verified

R.E. Coogan Heating Inc

A/C restored shortly after a Saturday call4.5

National Refrigeration Inc. work photo

National Refrigeration Inc.

Mini split walkthrough4.1

Pinnacle Plumbing & Heating, Inc. work photo

License verified

Pinnacle Plumbing & Heating, Inc.

State-verified plumbing license since 20003.8

Consumers Propane work photo

Consumers Propane

Two old oil tanks swapped for one new tank in about 4 hours3.3

MS

Mini Split Services

Mini split specialist3.6

Advanced Comfort Systems work photo

License verified

Advanced Comfort Systems

Geothermal heat pump repair within half an hour4.4

Dumais Plumbing & Heating work photo

License verified

Dumais Plumbing & Heating

Gas-fired boiler installation by George4.4

Stafford Mechanical Services work photo

License verified

Stafford Mechanical Services

Potentially dangerous boiler issue others missed4.9

CNM Heating Cooling Piping LLC work photo

CNM Heating Cooling Piping LLC

Mini-split replacement finished in one day by a 4-man crew4.6

Rambone & Sprague Oil Services Inc work photo

Rambone & Sprague Oil Services Inc

Same-day oil fill for a tank on E4.0

Ives Bros. work photo

Ives Bros.

Oil delivery an HVAC contractor refers customers to2.8

Hy-TEK Plumbing and Heating LLC work photo

License verified

Hy-TEK Plumbing and Heating LLC

Furnace call answered in under an hour3.4

COX ELECTRIC and KOOL CO work photo

COX ELECTRIC and KOOL CO

Generac generator installation3.5

Total Comfort Heating & Cooling work photo

Total Comfort Heating & Cooling

Heat pump conversion quoted better than most3.0

MS

License verified

Morrissette & Son Electrical Contractors, Inc.

Whole-house generator installs3.5

All Phase Heating & Cooling Inc work photo

License verifiedEspañol

All Phase Heating & Cooling Inc

Furnace restart within hours of the call2.2

City Service Company Inc work photo

City Service Company Inc

Holiday no-heat call fixed within the hour3.8

Peak Electric, Plumbing & Heating, LLC work photo

License verified

Peak Electric, Plumbing & Heating, LLC

One team for the electrical and the plumbing4.7

DP

License verifiedEspañol

Driver's Plumbing & Mechanical Inc.

Rebate and financing paperwork handled4.0

VO

Value Oil Co LLC

Phil and Karen walked a customer through a boiler fix3.7

Olympic Plumbing work photo

Olympic Plumbing

Same-day tub fix4.4

Dan The Super Contractor HVAC work photo

Dan The Super Contractor HVAC

Mini-split line sets hidden inside the walls4.3

Gill Services work photo

License verified

Gill Services

Oil tank replacement done without issues3.8

Perez Plumbing, Heating & Air Conditioning work photo

License verifiedEspañol

Perez Plumbing, Heating & Air Conditioning

Old leaking oil tank drained and removed3.5

Autiello Plumbing & Heating work photo

License verified

Autiello Plumbing & Heating

Boiler replacement quoted within budget3.1

License verifiedEspañol

Prout Mechanical

Next-morning AC repair3.2

Greenwood Plumbing and Heating work photo

Greenwood Plumbing and Heating

Same-day visit on the day a customer called3.9

EC

Ecc Chimney Service

Boiler parts department and expert advice1.6

JM

Jmb Mechanical

28 years in business2.9

You’ve seen all 36 hvac contractors seen on Reddit

36 of 36 results shown

Heat pumps & mini-splits Central AC Boilers