The Best HVAC Company in DeKalb

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

Service providers

DeKalb Mechanical, Inc.

Closed until Mon, 7:00 AM

In the heart of DeKalb, we are DeKalb Mechanical, Inc. - your go-to HVAC specialists. For decades, our team has been dedicated to providing except…

All-Star Heating & Air Conditioning Inc.

At All-Star Heating & Air Conditioning Inc., in DeKalb, we specialize in comprehensive HVAC services tailored to your needs. When your air conditi…

Hero Heating & Air Conditioning

Open 24/7

In DeKalb, we're Hero Heating & Air Conditioning – your reliable HVAC specialists. We offer a wide range of services tailored to local homeowners,…

Service Now Home Services

Open 24/7

In DeKalb, we are Service Now Home Services – your go-to partner for all HVAC needs. With a commitment to excellence, we provide a comprehensive r…

HVAC pros near DeKalb

These companies are based in nearby cities and serve DeKalb.

Joiner's HVAC, Inc.

Joiner's HVAC, Inc.

Cortland, Illinois · 2.5 mi away

Open today

Open 24/7

In Cortland, we are Joiner's HVAC, Inc., a dedicated team of professionals specializing in all your heating and cooling needs. Our expertise spans…

Smith-Dahlquist, Inc.

Smith-Dahlquist, Inc.

Sycamore, Illinois · 4.5 mi away

Open today

Open 24/7

In the heart of Sycamore, we are Smith-Dahlquist, Inc., your reliable HVAC specialists. Homeowners like you face varying challenges with their hea…

Cady Heating and Cooling

Cady Heating and Cooling

Sycamore, Illinois · 4.6 mi away

Open today

Open 24/7

In the heart of Sycamore, we are Cady Heating and Cooling - your reliable partner for all HVAC services. Homeowners face the constant challenge of…

THE FURNACE GUY

THE FURNACE GUY

Sycamore, Illinois · 4.8 mi away

Open today

Open 24/7

At THE FURNACE GUY in Sycamore, we specialize in HVAC services, delivering exceptional air conditioning and heating solutions to our valued custom…

Reliable Cooling & Heating LLC

Reliable Cooling & Heating LLC

Sycamore, Illinois · 5.2 mi away

Closed until Mon, 7:00 AM

At Reliable Cooling & Heating LLC in Sycamore, we specialize in HVAC services, delivering quality solutions for your home's heating and cooling ne…

Kendall Heating & Air Conditioning

Kendall Heating & Air Conditioning

Sycamore, Illinois · 5.6 mi away

Closed until Mon, 9:00 AM

At Kendall Heating & Air Conditioning in Sycamore, we specialize in HVAC services, providing efficient and reliable solutions for homeowners. Our …

A.H. Brenner Heating & Cooling

A.H. Brenner Heating & Cooling

Sycamore, Illinois · 6.3 mi away

Closed until Mon, 7:00 AM

In the heart of Sycamore, we are A.H. Brenner Heating & Cooling, your dedicated HVAC specialists. We take pride in delivering exceptional heating …

Newton's HVAC

Newton's HVAC

Sycamore, Illinois · 8.5 mi away

Closed until Sun, 7:00 AM

At Newton's HVAC in Sycamore, we specialize in delivering exceptional air conditioning solutions for homeowners. Our expertise lies in the heart o…

Even Flow Mechanical Services

Even Flow Mechanical Services

Elburn, Illinois · 13.8 mi away

Open today

Open 24/7

In Elburn, we are Even Flow Mechanical Services - your reliable partners for all HVAC services. As a dedicated heating contractor and plumber, we …

Don't see your business?

Add your business and show up in search every time.

Add your business

Spotted an error? Let us know

Verified HVAC in DeKalb, IL

We show only active businesses that pass moderation. Results are specific to DeKalb 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 DeKalb by experience, responsiveness, and value before you reach out.

Local-first search in DeKalb

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

Towns around DeKalb

The same listings in the closest cities — providers there often take jobs in DeKalb too. Mileage is the approximate distance from DeKalb.

How hiring works in DeKalb

Looking for hvac in DeKalb? 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.

Tips & guides from GigoPro

View all articles