Southeastern Mechanical Services, LLC
Southeastern Mechanical Services, LLC
Southeastern Mechanical Services, LLC is an HVAC contractor based in Decatur, Alabama. It installs, repairs and maintains heating and air-conditioning systems for residential, commercial and industrial properties. The company also offers an emergency HVAC line around the clock.
Last Updated October 2, 2026.
Business Highlights
- It is locally owned and family-run.
- It is licensed, bonded and insured.
- It is EPA-certified, factory-trained and authorized.
- Its Alabama certification is 06219.
- It is a TVA Quality Contractor Network member.
- It is a Mitsubishi Elite Diamond Contractor.
- It is a York Certified Comfort Expert.
- It promises a free service call if it cannot get an emergency system running or provide a temporary solution within two hours of arrival.
Service Area
Decatur, Athens and Hartselle, as well as surrounding communities across North Alabama.
Local Business Taking Calls
Southeastern Mechanical Services, LLC is one of 7 HVAC companies ProsGrade lists in Decatur, Alabama.
10 services listed, including Air-conditioning repair and installation, Heating and furnace repair and installation and HVAC maintenance. Open 24 hours, 7 days a week. Rated 4.9 from 92 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Southeastern Mechanical Services, LLC compares with the other 6 HVAC companies on ProsGrade in Decatur, using public Google ratings and review counts.
- Rated 4.9 on Google, at or above the 4.8 average of other Decatur HVAC companies on ProsGrade.
- Has more Google reviews (92) than 4 of the 6 other Decatur HVAC companies on ProsGrade.
- One of 5 Decatur HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
10 services- Air-conditioning repair and installationCentral, ductless and split-system units.
- Heating and furnace repair and installationFurnaces, heat pumps and electric heating systems.
- HVAC maintenanceScheduled tune-ups and the Advantage Maintenance Plan.
- Air purification systems
- Ventilation systems
- Thermostats
- Commercial refrigeration systemsRefrigeration controls, ice machines and walk-in freezers.
- CNC oil cooler and chiller service
- Pool heaters
- Geothermal systems
Reviews
What customers say
Customers praise quick responses and professional, informative technicians. A customer who had a full HVAC system replaced praised the crew for taking its time and doing the job carefully. One customer reports repeated calls about a Freon leak in a system the company had installed; the leak remained unfixed, and a promised return visit did not happen.
Customer Reviews
H B
Ken Whisenant
Kieron Butler
Katherine woods
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Frequently Asked Questions
How does Southeastern Mechanical Services handle after-hours emergency calls?
After hours, calls go to a live answering service. It gets agreement on the emergency service fee before a technician calls back to arrange a visit.
Does Southeastern Mechanical Services offer HVAC financing?
Yes. Financing options are available through GoodLeap and TVA EnergyRight.








