35 Emergency HVAC Contractors in Waterbury, CT

4.5 avg rating
3,884 total reviews8 offer 24/7 service

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Top-Rated Emergency HVAC Contractors in Waterbury

#1

Valiant Home & Energy

4.8(1,518 reviews)
Highly Rated

Every reviewer awarded 5 stars, with technicians named in multiple reviews receiving specific praise. Customers frequently mention energy audits, same-day…

165 Railroad Hill St, Waterbury, CT 06708
#2

Roto-Rooter Plumbing & Water Cleanup

4.8(676 reviews)
24/7 Highly Rated

All six featured reviewers awarded 5-star ratings, with four specifically naming individual technicians who arrived same-day or within hours of their call.…

411 Highland Ave #2N, Waterbury, CT 06708
#3

American Heating Air Conditioning Service

4.9(402 reviews)
24/7 Highly Rated

Four distinct reviewers explicitly name technicians Ron, Frank, or Ron M., citing specific scenarios including boiler servicing, zone installations, and…

64 Westridge Dr, Waterbury, CT 06708

All Emergency HVAC Contractors (35 total)

Superior HVAC & Tank Removal | Residential Heating & Cooling Contractor

4.9(277)
24/7 Highly Rated

277 reviewers awarded a 4.9-star average, with multiple five-star reviews praising Johnnie's crew for system…

240 Railroad Hill St, Waterbury, CT 06708

Plumbtech, LLC

4.9(125)
Highly Rated

All 125 reviews aggregate to a 4.9-star average, with 6 of 7 full reviews awarding 5 stars. Emergency…

Service Sean, LLC

4.9(115)
Highly Rated

Three of six detailed reviewers report unresolved pricing disputes and communication issues, while the…

Sky Heating And Cooling LLC

5.0(88)

Eight reviewers collectively emphasize three recurring strengths: same-day responsiveness during heating…

MAC HEATING AND COOLING LLC

5.0(67)

All 67 reviews award 5 stars, with customers consistently highlighting Mike and Zac by name for same-day…

Hocon Gas

4.0(177)

5 of 177 reviews mention specific technicians by name, with each naming Dave Venice, Valerie Bartley, or the…

20 Railroad Hill St, Waterbury, CT 06708

Best Oil

4.3(78)

78 reviews yield a 4.3-star average, with 6 of 8 detailed reviewers awarding 5 stars and praising same-day…

237 Huntingdon Ave, Waterbury, CT 06708

Benjamin Home Service , LLC.

5.0(31)

All 31 reviews award five stars, with 8 of 8 sampled reviews specifically praising same-day or next-day…

SERVPRO of Waterbury

4.4(50)
24/7

Five of five detailed reviews award 5 stars, with reviewers naming specific technicians including Vladimir,…

2095 S Main St #8, Waterbury, CT 06706

Omni Energy

4.3(54)

Among 54 reviews, five-star ratings dominate the sentiment with customers consistently praising owner Steve,…

40 Ford Ave, Waterbury, CT 06708

Sollas Heating

4.7(33)
24/7

Six reviewed customers all awarded 5-star ratings, with emergency response mentioned in three separate…

220 Plank Rd, Waterbury, CT 06705

JP Maguire Associates Inc.

3.9(42)
24/7

Three of three detailed reviews award 5 stars, citing same-day emergency arrival, decade-long warranty…

266 Brookside Rd, Waterbury, CT 06708

Brass City Fuel

3.7(46)

19 of 46 reviewers cite specific delivery issues including rude conduct, unannounced arrival windows, and…

130 Washington Ave, Waterbury, CT 06708

Royal Touch Services LLC

5.0(11)

All 11 reviews award five stars, with eight reviewers explicitly recommending the company. Customers…

Superior Fuel

3.6(25)

Among 25 reviews, customer experiences split between highly positive and strongly negative. Positive reviews…

M J Daly LLC

4.3(11)

6 of 11 reviews award 5 stars, with satisfied customers praising the fabrication shop quality, technician…

110 Mattatuck Heights Rd, Waterbury, CT 06705

Vincent Cascella Plumbing & Heating

4.0(12)
24/7

Four of eight visible reviewers award 5 stars, praising reliability, quality workmanship, and…

240 Railroad Hill St, Waterbury, CT 06708

Air Pro Air & Energy

5.0(6)

All six reviews award five stars, with Jimmy named as technician in five of six testimonials. Four clients…

Jr Heating & Cooling LLC

4.0(8)

Two of four visible reviewers describe Jr Heating & Cooling as reliable and quick to respond during…

Gem Burner Services

3.9(7)

Five of seven reviews award five stars, praising emergency same-day response times and honest pricing; the…

150 Bateswood Rd, Waterbury, CT 06706

High quality heating and cooling

5.0(4)

All four customers awarded five-star ratings, with three of four specifically naming Rob as the technician.…

JP Parks Heating and Cooling, LLC

5.0(4)

All four reviewers awarded five-star ratings, with each customer specifically naming the technician who…

Waterbury Air Duct Cleaning & Dryer Vent Cleaning And Chimney Repair,CT

4.2(5)
24/7

Four of five reviewers awarded 4 stars, with a single 5-star review from Erin Berg praising the…

497 Watertown Ave, Waterbury, CT 06708

Water Heater Pal

5.0(3)

All three reviews award five stars, with two reviewers specifically noting same-day emergency service and…

238 Platt St, Waterbury, CT 06704

Devine Design Contractors PLLC

5.0(3)

All three reviews award five stars, with customers specifically praising the team's punctuality,…

Sarracco Mechanical Services

4.0(4)

Four reviewers uniformly award 4 stars, praising transparency in diagnostics and fair pricing. No negative…

61 Mattatuck Heights Rd, Waterbury, CT 06705

Global Mechanical LLC

5.0(2)

Both documented reviewers awarded perfect 5-star ratings, with M. Kim specifically noting honest…

Emergency HVAC Costs in Waterbury

After-hours, weekend, and holiday HVAC service pricing in Waterbury. Rates are typically 1.5-2x standard.

ServiceLowAverageHigh
After-hours service call (weekday night)
Base fee before labor
$165$220$330
Weekend service call
$193$248$358
Holiday / major holiday call
$248$330$495
Emergency labor (hourly)
1.5-2x standard hourly rate
$176$226$275
Emergency repair total (typical)
Repair + after-hours surcharge
$330$770$1,320
Emergency repair (major)
Compressor, heat exchanger failures
$1,320$2,420$3,850

Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

Emergency HVAC in Waterbury, CT: What to Expect

Waterbury’s inland position means a full humid continental climate—summers climb to 87°F with about 22 days above 90°F and 66% humidity, while winters drop to near 19°F with regular snowfall from November through March. Those swings feed high seasonal strain on furnaces and ACs, which helps explain why 35 contractors serve the area and why emergency-hvac Waterbury searches spike; the local pool averages a 4.5 rating across 3,889 reviews.

Emergency repairs range from modest service calls to full system replacements, so prices vary by scope and equipment; expect diagnostic and labor fees for after-hours visits to be higher than standard appointments. Connecticut requires HVAC contractors to hold the Heating, Cooling and Piping (HPC) Contractor License—Class 1—through the DCP, so confirm licensing and insurance before authorizing work or estimates.

Customer highlights are not provided here, but the market data—35 firms, many with high review counts and eight offering 24/7 service—suggests both options and competition. Prioritize verified Class 1 licensing, clear emergency-response timelines, transparent after-hours pricing, and written estimates; check recent reviews for response speed and follow-up service to guide hiring decisions.

Frequently Asked Questions

Emergency HVAC in Waterbury adds a premium of $100-$300 to the standard service call fee, with labor billed at 1.5-2x normal rates. After-hours weekday calls typically run $150-$300 before repairs, weekends $175-$325, and holidays $225-$450. Total emergency repair costs usually land between $300-$1,200.

All HVAC Contractors in Waterbury, CT

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