Choosing a commercial HVAC contractor is a different decision than hiring a residential service company. The stakes are higher — a failed system affects your tenants, customers, or employees, not just your own comfort. Here's what to look for.
Verify Licensing and Insurance
In South Carolina, HVAC contractors must hold a valid mechanical contractor's license. Verify the license is current and in good standing with the SC Contractor's Licensing Board.
For commercial work, general liability insurance and workers' compensation coverage are essential. Ask for certificates of insurance naming your property as an additional insured. A contractor who hesitates to provide this is a red flag.
Commercial Experience Matters
Residential and commercial HVAC are different disciplines. Commercial systems — rooftop units, chillers, variable air volume systems, building automation — require different training and experience than residential split systems.
Ask specifically about experience with your type of property and equipment. A contractor who primarily does residential work may not have the expertise to properly service a commercial rooftop unit or a multi-zone system.
Response Time and Availability
For commercial properties, HVAC failures affect your business operations or your tenants' comfort. Ask about response time for emergency calls. A contractor who can't commit to a reasonable response time for commercial emergencies isn't the right partner for a commercial property.
Also ask about after-hours availability. HVAC failures don't happen on a schedule.
Documentation and Reporting
A good commercial HVAC contractor provides documentation of every service visit — what was inspected, what was found, what was done, and the condition of the equipment. This documentation is valuable for warranty claims, capital planning, and demonstrating due diligence if a tenant dispute arises.
Ask to see a sample service report before signing a maintenance contract. If the contractor can't provide one, or if the reports are vague, look elsewhere.
Maintenance Contracts
For commercial properties, a maintenance contract is usually more cost-effective than calling for service as needed. A good contract specifies the frequency of visits, what's included in each visit, response time for emergency calls, and pricing for repairs.
Read the contract carefully. Some contracts include parts and labor for covered repairs; others are inspection-only. Understand what you're getting before signing.
References and Reviews
Ask for references from commercial clients — specifically property managers or business owners with similar properties. A contractor who can't provide commercial references may not have the experience they claim.
Online reviews are useful but focus on commercial-specific feedback. A contractor with excellent residential reviews may not have the same track record on commercial work.
Frequently Asked Questions
Should I use the same contractor for residential and commercial properties?
Only if the contractor has demonstrated commercial experience. Many excellent residential contractors don't have the training or equipment for commercial work. Ask specifically about commercial experience and references.
What should a commercial maintenance contract cost?
Costs vary by property size, number of units, and what's included. Get at least two or three quotes and compare what's included, not just the price. The cheapest contract isn't always the best value.
Does Garris Air do commercial HVAC work in Upstate SC?
Yes. We service commercial properties including retail, office, and multifamily throughout Spartanburg, Greenville, and surrounding areas. Call (864) 237-5363 to discuss your property.