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  3. Longmont
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The Best HVAC Company in Longmont

Compare top-rated hvac providers in Longmont. Profiles include verified reviews, service details, and direct contact options.

Service providers

Homerun Heating & Air

Homerun Heating & Air

4.7

From $50

Up to $500

Closed until Mon, 9:00 AM

At Homerun Heating & Air in Longmont, we're committed to keeping your home comfortable all year round. Specializing in HVAC services, we offer a w…

0 local residents requested quote requests

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Stone Heating & Air

Stone Heating & Air

4.9

From $50

Up to $500

Closed until Mon, 9:00 AM

At Stone Heating & Air in Longmont, we specialize in HVAC services, offering top-tier solutions to keep your home comfortably climate-controlled. …

0 local residents requested quote requests

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My Guy Heating and Air (Firestone)

My Guy Heating and Air (Firestone)

4.9

From $50

Up to $500

Closed until Mon, 8:00 AM

At My Guy Heating and Air in Longmont, we specialize in HVAC services with a focus on air conditioning repairs and heating contractor work. We pri…

0 local residents requested quote requests

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Carroll Mechanical Services

Carroll Mechanical Services

4.8

From $50

Up to $500

Closed until Mon, 8:00 AM

In Longmont's vibrant community, we are Carroll Mechanical Services - your dedicated HVAC specialists. With a strong focus on air conditioning con…

0 local residents requested quote requests

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KJ Thomas Mechanical

KJ Thomas Mechanical

4.9

From $50

Up to $500

Closed until Mon, 8:00 AM

In homes across Longmont, a persistent issue looms: when air conditioning units falter or heating systems fail, comfort and efficiency take a hit.…

0 local residents requested quote requests

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Circulating Air Inc

Circulating Air Inc

4.8

From $50

Up to $500

Closed until Mon, 8:30 AM

In Longmont, we are Circulating Air Inc - your reliable partner in HVAC services. We take pride in serving our community, offering top-tier soluti…

0 local residents requested quote requests

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Groulx Mechanical Heating & Cooling Inc.

Groulx Mechanical Heating & Cooling Inc.

5

From $50

Up to $500

Closed until Sat, 8:00 AM

At Groulx Mechanical Heating & Cooling Inc. in Longmont, we specialize in providing top-tier HVAC services for homes and businesses. As a reliable…

0 local residents requested quote requests

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Welzig Heating, Air, Plumbing & Electric

Welzig Heating, Air, Plumbing & Electric

4.9
Open today

From $50

Up to $500

Open 24/7

At Welzig Heating, Air, Plumbing & Electric in Longmont, we specialize in comprehensive HVAC services. Our team of experts handles everything from…

0 local residents requested quote requests

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Verified HVAC in Longmont, CO

We show only active businesses that pass moderation. Results are specific to Longmont and nearby service areas, and inactive profiles are removed to keep the list current.

Real reviews for hvac

Ratings and reviews come from customers who used the service. Compare hvac pros in Longmont by experience, responsiveness, and value before you reach out.

Local-first search in Longmont

Filter by neighborhood, check locations on the map, and find providers close to home or work in Longmont. Listings are refreshed regularly — August 2026.

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HVAC near me in Longmont, CO - August 2026

Looking for hvac in Longmont? This page lists verified local providers with ratings, reviews, and contact options. We show active businesses only — profiles are moderated and updated by owners.

Compare pros by experience, price range, and customer feedback. Many providers offer free estimates or same-day service for common requests. Use filters and the map to find someone close to your address.

Before you hire

  • Read the most recent reviews for your specific type of job.
  • Ask about licensing and insurance when required for this trade.
  • Get a written estimate for work over a few hundred dollars.
  • Confirm availability and any trip or emergency fees upfront.

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  • How do I choose the right pro?

    Start with ratings and recent reviews, then compare services offered, location, and response time. Contact two or three providers to get quotes before making a decision.

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    Yes. Create a free business profile to reach local customers searching for your category. You can update services, photos, and contact details anytime.

  • How often is information updated?

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Recent reviews in Longmont

  • Riley Qualls
    Riley Qualls

    The SAC team is great to work with, and always honest! from first call to completed service they are with you every step of the way! It also helps they are a FAMILY business, and we love supporting a family businesses in 2026!

  • Tim Cissell
    Tim Cissell

    They did excellent work.

  • Paul Zollner
    Paul Zollner

    Our go to hearing and air company. They will go the extra mile for you.

  • Allen Hayden
    Allen Hayden

    Very knowledgeable and courteous

  • Slava Fedorchuk
    Slava Fedorchuk

    Very nice, responsive, knowledgeable professionals.

  • Lorraine Drewes
    Lorraine Drewes

    Great service they had all the answers when I ask about pacific question's

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