Groulx Mechanical Heating & Cooling Inc.
Longmont, CO AC Replacement · #3 of 3
Overview
Groulx Mechanical lists professional central AC replacement and installations. The company states high-efficiency variable-speed upgrades. Groulx Mechanical reports same-day emergency response for urgent cooling failures. The business advertises financing options for larger system changeouts. Longmont's wide temperature swings make proper sizing and efficient equipment especially useful here.
Central AC replacement and full-system installs for Longmont homes and light commercial properties. High-efficiency variable-speed equipment is listed as an upgrade option (advertised). Financing for larger system changeouts is available (advertised). Same-day emergency response is noted for urgent cooling failures.
Score breakdown
Longmont, CO AC Replacement average is 85/100. Ranks #3 of 3 listed AC Replacement providers in Longmont, CO.
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
vs. Longmont average
| Signal | Groulx Mechanical Hea… | Longmont avg | Delta |
|---|---|---|---|
| Vouched Score | 83/100 | 85/100 | -2 vs avg |
| Google rating | 5.0★ | 4.9★ | +0.1 vs avg |
| Review volume | 265+ | 1,940+ | -1679 vs avg |
What customers say
Pros
- High Google rating (5.0★ across 265+ reviews)
When to choose them
- You need same-day AC replacement
- You need same-day or after-hours service
- You need to finance the work
- You prefer a family-owned operation
Services
Service area
Guarantees & credentials
- Licensed and insured
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
Frequently asked questions
What are the pros of Groulx Mechanical Heating & Cooling Inc.?
When should I choose Groulx Mechanical Heating & Cooling Inc.?
What is the Vouched Score for Groulx Mechanical Heating & Cooling Inc.?
How can I contact Groulx Mechanical Heating & Cooling Inc.?
What does AC replacement service typically cost when working with a Longmont, CO provider like Groulx Mechanical Heating & Cooling Inc.?
Does Groulx Mechanical Heating & Cooling Inc. do AC Replacement in Longmont, CO?
Does Groulx Mechanical Heating & Cooling Inc. do Emergency HVAC Service in Longmont, CO?
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
Groulx Mechanical Heating & Cooling Inc. (this company) ⭐ High-Efficiency Upgrades |
83/100 | 5.0★ (265+) | — |
| 78/100 | 4.8★ (860+) | 10+ | |
M and M Heating, Cooling, Plumbing and Electrical ⭐ Highest Vouched Score · ⭐ Best for Heat-Exchanger Replacement · ⭐ Best for Gas Valve & Combustion Repair |
91/100 | 4.9★ (3,520+) | 25+ |
Welzig Heating, Air, Plumbing & Electric ⭐ Highest Vouched Score · ⭐ Honest Replace-vs-Repair · ⭐ Full-System Changeout |
85/100 | 4.9★ (1,445+) | 32+ |
Listed in
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Profile last updated July 28, 2026.