Blog

Guides from DeKalb Mechanical, Inc.

Straight answers to the questions we hear most, written for our own customers.

September 16, 2026 · 3 min read

Paying for a New Residential System in DeKalb County

A new furnace or air conditioner is one of the larger purchases a homeowner makes for their house, and there's more than one way to pay for it.

September 16, 2026 · 3 min read

Your Walk-In Cooler Quit on a Friday Night: What to Check, and What Happens When You Call

A walk-in cooler doesn't wait for business hours to fail, and when it goes down on a Friday night with a weekend of inventory behind that door, the first few minutes matter.

September 16, 2026 · 3 min read

Why Our Ductwork Comes Out of Our Own Sheet Metal Shop

Most HVAC contractors order ductwork and wait for a delivery window. DeKalb Mechanical fabricates its own, in the same building that installs it.

September 16, 2026 · 3 min read

What a Preventative Maintenance Agreement Actually Covers on a Commercial Rooftop Unit

A preventative maintenance agreement isn't a package pulled off a shelf. It's built around the building it protects, because no two rooftop units are carrying the same load.

September 16, 2026 · 4 min read

What Rising Amp Draw on a Compressor Is Telling You Before It Fails

A compressor rarely fails without warning. The warning is usually written in amps, and it shows up on a meter long before it shows up as a service call.