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Verify an HVAC license
Verify the license number, status and business relationship—not a logo that merely says ‘licensed.’
Read the field guideDallas contractor desk
A bigger air conditioner is not automatically a better Dallas air conditioner. The useful evidence is a current Texas license, required insurance, a load-based sizing method and a plan for the ducts, controls and humidity—not just the outdoor unit.
Before the first estimate
Field library
Reviewed July 2026
Verify the license number, status and business relationship—not a logo that merely says ‘licensed.’
Read the field guideAn oversized system can cool the thermostat quickly while doing a worse job on comfort and moisture.
Read the field guide