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Claim This BusinessDMS Air is a family-owned contractor based in McKinney, Texas, licensed by the state of Texas under license number TACLB00027993C. Since 2007, the company has served McKinney, Frisco, Allen, and Greenville with air conditioning repair, replacement, and heating services. Owner Paul Denman brings over thirty years of hands-on field experience to every job, and the company holds liability insurance for homeowner protection. Across 73 verified reviews, DMS Air carries a 4.9-star average rating.
Beyond standard repair and replacement, DMS Air offers a seasonal maintenance program that inspects outside units, thermostat settings, coils, and capacitors to prepare systems before summer heat arrives. The company also handles smart thermostat installation and provides emergency repair service around the clock, every day of the week. This combination of preventive maintenance and 24-hour emergency availability gives residential customers a single contact for both planned service and unexpected breakdowns.
E Harper called DMS Air on a scorching summer weekend after major spine surgery when the downstairs AC failed. Paul Denman arrived as scheduled, diagnosed the issue quickly, explained the repair steps, and held the line on pricing without unnecessary upsells. James Walter experienced the same morning urgency when both AC units failed during a heat wave. Paul arrived within hours, had both systems operational in under an hour, and took time to explain every step of the process. Across multiple reviews, Paul Denman walks customers through troubleshooting over the phone, saving a service call when a simple reset resolves the problem.
Multiple reviewers name Paul Denman specifically and describe receiving step-by-step phone guidance that avoided a service visit altogether. Same-day arrival during extreme heat waves and prompt resolution of multi-unit failures appear across several five-star reviews. Repeat customers and referral language signal a loyal customer base that returns to DMS Air for ongoing maintenance and future repair needs.
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| FridayToday | Open 24 hours |
| Saturday | Open 24 hours |
Diagnoses and repairs existing air conditioning systems, including seasonal tune-ups that inspect coils, capacitors, and thermostat settings.
Assesses current equipment and installs new air conditioning units when repair costs exceed the value of a replacement.
Troubleshoots and repairs furnace and heat pump systems to restore warmth during cold snaps and winter months.
Installs new heating equipment when existing systems fail or when homeowners prefer an upgrade to newer efficiency ratings.
Advises on thermostat selection and installs smart thermostats that integrate with existing HVAC equipment for improved control.
Extends air conditioning repair service to the Greenville area, serving both residential and light commercial properties.