18 Commercial HVAC Contractors in Waterbury, CT

3.7 avg rating
939 total reviews2 offer 24/7 service
Need emergency service? 8 HVAC providers in Waterbury offer 24/7 availability

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Top-Rated Commercial HVAC Contractors in Waterbury

#1

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
#2

Ward Heating and Cooling LLC

5.0(260 reviews)
Highly Rated

All 260 reviews award five stars, with emergency same-day service mentioned across multiple testimonials praising rapid response times. Technicians Todd and…

#3

SERVPRO of Waterbury

4.4(50 reviews)
24/7

Five of five detailed reviews award 5 stars, with reviewers naming specific technicians including Vladimir, Nick Malavasi, Pablo, Alonzo, Tim, and John.…

2095 S Main St #8, Waterbury, CT 06706

All Commercial HVAC Contractors (18 total)

F.W. Webb Company - Waterbury

3.9(40)

3 of 4 detailed reviews mention specific staff members, positive reviews credit Helen and positive service…

737 Bank St, Waterbury, CT 06708

M J Fahy & Sons Inc

3.9(40)

Reviewers split distinctly: positive feedback references successful HVAC conversions and professional…

20 Judd St, Waterbury, CT 06702

Torrco (Sales Counter only)

4.4(25)

Three of seven reviewers specifically named individual staff members who provided knowledgeable assistance.…

100 N Elm St, Waterbury, CT 06702

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

Accu-Temp Mechanical Services, Inc

4.5(20)

Every client who left a rating awarded five stars, with eighteen of twenty reviews specifically praising the…

184 Railroad Hill St, Waterbury, CT 06708

Waterbury Plumbing & Heating Supply, Inc.

3.6(13)

6 of 13 reviewers awarded 5-star ratings, with positive feedback emphasizing the staff's product knowledge…

1344 Meriden Rd, Waterbury, CT 06705

Jr Heating & Cooling LLC

4.0(8)

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

Earth Core Energy Services

4.0(8)

Six of eight reviewers award 4-5 stars, praising diagnostic skill and fair pricing, while 2 reviews cite…

Sid Harvey Industries - HVAC/R Specialist Distributor

3.8(8)

3 of 8 reviewers report positive experiences citing staff helpfulness and rare part availability, while 2 of…

278 Railroad Hill St, Waterbury, CT 06708

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.…

Eemax Inc

2.6(12)

Three reviewers cite product failure within the first year of ownership, with two explicitly mentioning…

400 Captain Neville Dr, Waterbury, CT 06705

Bethany Supply

4.5(2)

This business maintains a 4.5-star rating from 2 reviews, with both customers appearing to have completed…

23 Commercial St, Waterbury, CT 06702

Connecticut Energy

5.0(1)

A single 5-star review describes Connecticut Energy as a company deeply focused on customer needs, with…

The School For Energy Efficiency

0.0

This business currently has no online reviews, as it operates as an educational institution rather than a…

145 Railroad Hill St, Waterbury, CT 06708

Sears Heating and Air Conditioning

0.0
375 Union St, Waterbury, CT 06706

Commercial HVAC Costs in Waterbury

Commercial system pricing in Waterbury. Actual costs vary significantly by building size and system type. Request a site-specific quote.

ServiceLowAverageHigh
Annual maintenance (per rooftop unit)
Quarterly inspections
$550$1,100$2,200
Annual contract (small business, < 5K sqft)
$1,100$2,750$5,500
Annual contract (mid-size, 5K-25K sqft)
$3,850$7,150$11,000
Basic rooftop unit replacement
$7,150$11,000$16,500
Small business full system (< 5K sqft)
$8,800$17,600$27,500
Mid-size building (5K-25K sqft)
$27,500$55,000$88,000
Operating cost (per sqft annually)
Utility + maintenance
$2$4$7

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

Commercial HVAC in Waterbury, CT: What to Expect

Waterbury’s inland location gives it a full humid continental climate: hot, muggy summers with highs near 87°F and many days above 90, and cold winters with January lows around 19°F and regular snow. That seasonal swing creates steady commercial demand for reliable systems. There are 18 contractors serving the area, averaging a 3.7 rating across 939 reviews; two advertise 24/7 service. Use commercial-hvac Waterbury firms familiar with both peaks.

The dataset did not include specific topCostItems, so precise line-item ranges aren’t available here; reported prices in the market vary widely with system size and complexity. What is clear is that any contractor must hold Connecticut’s Heating, Cooling and Piping (HPC) Contractor License — Class 1 (Master HPC Contractor) from the DCP. Ask for itemized estimates that separate equipment, labor, controls, and emergency-response fees before committing.

Customer highlights were not supplied in the data, so look instead for consistent patterns in reviews: responsiveness, clarity of quotes, and preventive maintenance offerings stand out in local searches. Prioritize companies that document service histories, provide rapid winter- or summer-response plans, and can verify the required HPC Class 1 credentials and insurance before starting work.

Frequently Asked Questions

Commercial HVAC in Waterbury varies widely by building size. Annual maintenance contracts run $1,000-$10,000+ depending on unit count and service frequency. Rooftop unit replacement starts around $6,500-$15,000, small business systems (<5K sqft) run $8,000-$25,000, and mid-size buildings cost $25,000-$80,000 installed.

All HVAC Contractors in Waterbury, CT

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