Where Southeastern Mechanical Services Works

We are a family-owned heating and air conditioning company based in Decatur, Alabama. We serve homes and businesses across Morgan County, all of Limestone County, Cullman, and the Smith Lake area.

Wherever you are in our area, you get the same thing: trained service technicians, not commissioned salespeople, an honest look at whether a repair makes more sense than a replacement, and a written quote that spells out exactly what we are installing.

Not sure whether we come out to your address? Call us at 256-686-3444. Our phones are answered 24/7.

Decatur, Our Home Base

Decatur is home. Our office and our service facility are both here, and this is where our crews start every day.

For Decatur homes and businesses, start with our Decatur heating and air conditioning services. If you are planning a new system, see AC installation and replacement in Decatur. If your heat is not keeping up, see furnace repair and tune-ups in Decatur.

Towns We Serve Regularly

These communities are all within about a 30-minute drive of our Decatur shop, so they are part of our regular service routes:

  • Decatur
  • Hartselle
  • Priceville
  • Trinity
  • Somerville
  • Austinville
  • Eva
  • Athens and all of Limestone County, including Mooresville

We have dedicated pages for AC and cooling service in Hartselle and AC and cooling service in Athens.

Limestone County

We cover all of Limestone County, not just the Athens city limits. That includes Athens, Mooresville, and the East Limestone area.

Many of the homes we work on there are in the higher-end subdivisions around Athens. We also do commercial work in Athens.

Cullman

Most of our Cullman work is for commercial and industrial facilities. We carry the insurance commercial properties require and provide a Certificate of Insurance on request. Learn more about our commercial and industrial HVAC service.

We take residential calls in Cullman too, though less often than in our core towns.

Smith Lake

Lake homes and vacation homes on Smith Lake are a long drive for every HVAC company, because there is no major city close to the lake. We make that trip.

Because of the distance, a visit to the lake can take longer to schedule than one in Decatur, and we will tell you what to expect when you call. For a home that sits empty part of the year, spring and fall maintenance is the best way to catch a problem before you arrive for the season.

Not Sure If You Are in Our Area?

Give us a call. If we can get to you, we will tell you when. If we cannot, we will say so.