9 HVAC Repair Contractors in Watertown, MA

4.1 avg rating
3,010 total reviews2 offer 24/7 service
Need emergency service? 3 HVAC providers in Watertown offer 24/7 availability

Top-Rated HVAC Repair Contractors in Watertown

#1

Winters Home Services

4.8(2,879 reviews)
24/7 Highly Rated

Of the four detailed reviews sampled, three explicitly name technicians (Kyle, Zane, Chris, Andrew, Lucas, Zack) and describe specific problem-solving:…

108 School St, Watertown, MA 02472
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#2

EZ CLIMATE HVAC Inc

4.8(38 reviews)

The company maintains a 4.8-star average from 35 reviews, with multiple customers specifically praising same-day emergency response during extreme weather…

612 Main St, Watertown, MA 02472
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#3

Airco Home Comfort Services, LLC

4.9(27 reviews)

Twenty-seven reviewers award perfect ratings, with multiple clients mentioning Joe's guidance through mass Save rebates and Steve's technical explanations.…

15 Main St Suite 245, Watertown, MA 02472
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All HVAC Repair Contractors (9 total)

B & G Heating and Air Conditioning

4.7(26)

Twenty-five reviews yield a perfect 5-star average, with each reviewer mentioning specific positive…

1053 Belmont St, Watertown, MA 02472
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Alpha Mechanical Corporation

3.7(24)
24/7

Of 24 reviews, ratings split sharply between 1-star and 5-star responses, with positive reviews citing Sean's…

71 Bacon St, Watertown, MA 02472
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Home Services at The Home Depot

3.9(11)

Four of six detailed reviews award five stars, with customers specifically praising HVAC tune-up quality and…

615 Arsenal St, Watertown, MA 02472
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Watertown's Heating and Air Conditioning Repairs

5.0(4)

All four reviewers award five stars, with three specifically using the words "timely" and "efficient" to…

83 Church St, Watertown, MA 02472
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A/C Comfort Pros

5.0(1)
127 Boylston St, Watertown, MA 02472
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StarGroup HVAC

0.0

There are currently no customer reviews available for this business. Prospective clients cannot reference…

119 Galen St, Watertown, MA 02472
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HVAC Repair Costs in Watertown

Typical heating and cooling repair costs in Watertown, by component.

ServiceLowAverageHigh
Diagnostic / service call
$83$132$220
Thermostat replacement
$165$303$550
Blower motor replacement
$440$715$1,210
Heat exchanger replacement
$1,650$2,420$3,850
Ignitor replacement (gas furnace)
$165$275$440
Control board replacement
$330$605$990
Full system repair (major)
Multi-component failure
$550$1,320$3,300

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

HVAC Repair in Watertown, MA: What to Expect

Watertown residents face a climate split between bitter winter cold that pushes heating systems to their limits and humid summer heat that stresses cooling equipment year-round. With eight contractors serving the area and an average rating of 4.1 across nearly three thousand reviews, finding reliable HVAC Repair in Watertown means choosing among professionals who understand how Boston-area weather tests equipment durability and efficiency through extreme temperature swings.

Service pricing reflects the complexity of diagnosis and component replacement. For example, a diagnostic or service call runs between $83 and $220, while thermostat replacement ranges from $165 to $550 and blower motor replacement costs between $440 and $1210. In Massachusetts, contractors must hold a Refrigeration Technician License along with sheet metal or pipefitter credentials from the state Division of Professional Licensure, meaning technicians working in your home have met meaningful licensing thresholds before charging for labor.

Review patterns reveal why certain contractors earn standout ratings. Winters Home Services draws repeated mentions of technicians named Kyle, Zane, and Chris who locate rare parts and deliver same-day furnace repairs, with multiple reviewers describing specific problem-solving beyond basic expectations. Customers clearly value technicians who explain what's happening with their systems and follow through until the work is complete.

Frequently Asked Questions

HVAC repairs in Watertown range from $83-$3,850 depending on the component. Thermostat replacement runs $150-$500, blower motor $400-$1,100, ignitor $150-$400, and heat exchanger replacement $1,500-$3,500. Diagnostic fees of $75-$200 are typically credited toward the repair if you proceed.