Commercial Heating
& Cooling
From a single rooftop unit to a full multi-zone system across your entire facility, Maintenance Plus keeps Chattanooga businesses comfortable year-round — without the downtime.
24/7 Emergency
All Brands Serviced
Free Estimates on Replacements
Licensed & Insured
Additional Services
Tune-Ups, Air Quality & Controls
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Seasonal Tune-Ups
A pre-season tune-up is the most cost-effective thing you can do for your system. We catch small problems before they become expensive failures — especially important heading into Tennessee's brutal summers.
- Comprehensive 21-point inspection
- Filter and belt replacement
- Coil cleaning and refrigerant check
- Condensate treatment
- Written report with findings
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Indoor Air Quality
Air quality isn't just comfort — for food service operations it's a regulatory matter, and for any business it directly affects staff productivity and customer experience.
- Commercial air filtration upgrades
- UV air purification systems
- Ventilation rate balancing
- Fresh air / ERV integration
- CO₂ and air quality monitoring
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Building Controls
Modern commercial HVAC controls go far beyond a thermostat. Programmable setbacks, remote monitoring, and building automation can cut your energy costs significantly.
- Commercial-grade smart thermostats
- Building Automation System (BAS) integration
- Remote monitoring setup
- Demand-controlled ventilation
- Energy use reporting
Common Questions
HVAC FAQ
How quickly can you respond to an HVAC emergency?
For contract clients, we target a 4-hour response during business hours and same-day service for after-hours emergencies. For non-contract clients, we dispatch as quickly as our schedule allows — typically same day or next day for urgent situations. For true emergencies (a restaurant that can't operate), call us directly at (423) 555-0100.
Do you work on all HVAC brands?
Yes — we service all major commercial HVAC brands including Carrier, Trane, Lennox, York, Daikin, Rheem, Nortek, and others. We are not limited to any single manufacturer, which means we can give you unbiased recommendations on repairs vs. replacement.
How often should a commercial HVAC system be serviced?
For most commercial applications, we recommend bi-annual service — once before cooling season (spring) and once before heating season (fall). High-demand environments like restaurants and 24-hour facilities often benefit from quarterly inspections. Our preventive maintenance plans are designed around your specific equipment and usage patterns.
When does it make more sense to replace than repair?
The general rule is: if the repair cost exceeds 50% of the replacement cost and the unit is more than 10 years old, replacement usually makes better financial sense. We'll always give you an honest assessment — we won't push replacement if a repair makes sense, and we won't keep patching a system that's costing you more than a new one would.
Do you offer financing on equipment replacements?
Yes, we work with financing partners to provide options for qualified commercial customers. Contact us and we can walk through what's available for your situation.