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Groulx Mechanical Heating & Cooling Inc.

HVAC Companies in Longmont, Colorado
Ranked #1 in Longmont | Grade A+
5.00 (269 reviews)

Groulx Mechanical Heating & Cooling Inc.

Local HVAC company offering repair, replacement, installation, and maintenance for heating and cooling systems, with an emphasis on responsive scheduling and clear communication Serving homeowners across Longmont, Colorado.

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Groulx Mechanical Heating & Cooling Inc. business photo 2 - HVAC in Longmont
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Why Homeowners Choose This Business

Responsive scheduling, clear explanations of findings and options, and consistent follow-through from diagnosis to completion. Local ownership with a service approach that emphasizes practical solutions and ongoing support Local experience that helps homeowners across Longmont, Colorado compare a more region-aware provider.

Service Area

Serving Longmont, Colorado and surrounding Front Range neighborhoods.

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Listing details

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  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Ranks among the top local businesses in this market.
  • Performs at or above the local average rating.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  Furnace Repair
  AC Repair
  Maintenance
  HVAC installation
  Installations
  Heat Pump Services
  Repairs
  Ductless Mini-Split Installation
  Hvac Maintenance
  Thermostat Replacement
  Indoor Air Quality
  AC Replacement
  Heating System Tune-Up
  Air Conditioner Tune-Up
  ductless AC repair

Heating and AC repair, system replacement and installation, ductless mini-split setup, heat pump services, seasonal tune-ups, and indoor air quality checks.

Reviews

Customer Reviews

Paul Hightower
Groulx may be hard to pronounce, but they took care of me. My condo's old AC unit was making a distressing sound, and I was able to get a couple guys out within a couple days to check it out. During peak heat wave season, when everyone else…
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Groulx may be hard to pronounce, but they took care of me. My condo's old AC unit was making a distressing sound, and I was able to get a couple guys out within a couple days to check it out. During peak heat wave season, when everyone else was giving me appointments weeks away. It turned out to be a loose warning label that was flapping against the fan. They removed it, tested to be sure everything was working, and also gave me some advice about possible replacement options.
Emmanuel Itoiz
Bryan was very professional and knowledgeable. He quickly honed the issue and found a fading contactor in the AC unit. He replaced the component and got my AC unit back on in less than an hour. At the office also Anna was extremely supporti…
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Bryan was very professional and knowledgeable. He quickly honed the issue and found a fading contactor in the AC unit. He replaced the component and got my AC unit back on in less than an hour. At the office also Anna was extremely supportive and kind to scheduling for an appointment within the same week. I will recommend Groulx Mechanical anytime.
Pat W
The Groulx team was very responsive and communicated well during the entire process. Our AC stopped working and thankfully they squeezed us in the day after. It was a nice quick fix and we appreciate their help!
Justin Stoeber
Mark and Nick and their team are one of a kind. Would highly recommend. Have purchased a full heating and cooling HVAC system through them and they have been servicing it for the last 5+ years. So far no issues, great efficiency, and awesom…
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Mark and Nick and their team are one of a kind. Would highly recommend. Have purchased a full heating and cooling HVAC system through them and they have been servicing it for the last 5+ years. So far no issues, great efficiency, and awesome service. I give them my full recommendation without reservation. They are not like your corporate giants that seem like different companies but are all owned by the same conglomerate corporation that price fix and price gouge. You can't go wrong with Grouxl.
Jaime Treutler
Brian was thorough, knowledgeable and great. The quote for a HVAC tune-up beat many other big name companies and the service was more personalized. I will continue using this company and am so glad a friend referred me.

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Frequently Asked Questions

They handle central air conditioners, furnaces, heat pumps, and ductless mini-split systems. Service includes repair, replacement, new installation, and routine maintenance.

Availability varies, but reviews note they often accommodate visits within a few days even during hot spells. Calling early in the day typically helps secure sooner slots.

Yes, seasonal tune-ups are available to check safety, performance, and efficiency. These visits can help identify worn parts and reduce the chance of breakdowns.

Technicians will diagnose the issue, explain options, and outline costs and timelines. They typically provide practical recommendations based on system age, condition, and efficiency goals.

They serve Longmont, Colorado and nearby Front Range communities. Call with your address to confirm current coverage and scheduling.
 Verified Listing

Opening Hours

  • Monday 8:00 AM – 6:00 PM
  • Tuesday 8:00 AM – 6:00 PM
  • Wednesday 8:00 AM – 6:00 PM
  • Thursday 8:00 AM – 6:00 PM
  • Friday 8:00 AM – 6:00 PM
  • Saturday 8:00 AM – 1:00 PM
  • Sunday Closed

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Business Details

Business Rating
5.00 (269 reviews) Pro Listing
Address
2447 Winding Dr, Longmont, CO 80504
Business Type
HVAC Contractor
Website
https://www.groulxmechanical.com/
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