Groulx Mechanical Heating & Cooling Inc.
Longmont, CO Furnace Replacement · #3 of 4
Overview
Groulx Mechanical advertises same-day service for urgent heating needs. The company lists financing options on its website. Groulx Mechanical notes its technicians are licensed and insured. Family-owned longmont firms can help with winter heating demands at altitude. The site highlights high-efficiency heating and heat-pump installations.
Furnace replacement and professional furnace installation across the Longmont area. Same-day service is advertised for urgent heating calls. Financing availability is listed for larger furnace changeouts. High-efficiency systems and heat pumps are noted on their site.
Score breakdown
Longmont, CO Furnace Replacement average is 80/100. Ranks #3 of 4 listed Furnace 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 | 79/100 | 80/100 | -1 vs avg |
| Google rating | 5.0★ | 4.9★ | +0.1 vs avg |
| Review volume | 265+ | 835+ | -571 vs avg |
Pros
- High Google rating (5.0★ across 265+ reviews)
When to choose them
- You need same-day furnace 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 furnace replacement service typically cost when working with a Longmont, CO provider like Groulx Mechanical Heating & Cooling Inc.?
Does Groulx Mechanical Heating & Cooling Inc. do Furnace 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) |
79/100 | 5.0★ (265+) | — |
| 74/100 | 4.9★ (150+) | 46+ | |
Mountain Valley Plumbing and Heating ⭐ Best for High-Efficiency (95%+ AFUE) Upgrades |
84/100 | 4.9★ (875+) | 19+ |
| 78/100 | 4.8★ (860+) | 10+ |
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Profile last updated July 28, 2026.