Maintenance agreements
Planned visits help reduce avoidable downtime and document equipment condition.
Commercial HVAC
Service for offices, small retail spaces, restaurants, medical offices, light industrial spaces, and multi-tenant properties.
Cornerstone is positioned as a light-commercial contractor, not a massive industrial firm. The focus is repair, maintenance agreements, rooftop units, split systems, replacement planning, tenant comfort issues, and after-hours scheduling.
Commercial needs
Clear communication matters when owners, managers, tenants, and staff all need to know what happens next.
Planned visits help reduce avoidable downtime and document equipment condition.
Service windows can be coordinated around customer and tenant needs.
Budgeting ahead reduces emergency replacement pressure.
Frequently asked
Yes. Cornerstone provides 24/7 emergency heating and cooling service across our North Texas service area, including evenings, weekends, and holidays.
Arrival timing depends on location, weather, current workload, and urgency. We do not make exact promises over the phone, but same-day appointments are common — call for current availability.
Our technicians service common residential and light-commercial equipment across major brands. We are an independent service company and are not affiliated with any single manufacturer.
Age, repair history, comfort issues, efficiency, warranty status, and installation quality all matter. We walk through the trade-offs with you before you decide, and we never push a replacement you do not need.
Most homes benefit from a cooling tune-up in spring and a heating tune-up in fall. The Comfort Plan bundles both so it is easy to stay on schedule.
Ready when you are
Appointments available Monday through Saturday. Emergency service available 24/7.