Diagnostic Fee Waived
On Approved Repairs.
We come out, run a full video diagnostic, find exactly what’s wrong — and if you approve the repair, the diagnostic fee disappears. You pay for the fix. Nothing else.
Simple. Transparent.
No Fine Print Games.
Four steps from your call to cold air. The diagnostic fee waiver applies automatically when you approve the repair — no codes, no forms, no asking.
Tell us what your AC is doing. We schedule you — often same day. 24/7 for emergencies.
Our tech diagnoses with digital gauges and micro-cameras. You watch it on video before we say anything.
Diagnostic fee waived. You pay only for the repair itself. No extra charges, no surprises.
Repair completed same day. Post-repair video delivered before you sign off. Cold air tonight.
Offer details: Diagnostic fee is waived on approved repairs only. Does not apply if no repair is authorized. Valid for residential service in Fresno and surrounding Central Valley areas. Call to confirm availability.
Because You Shouldn’t Pay
Just to Find Out
What’s Wrong.
Most HVAC companies charge a diagnostic fee and then charge again for the repair. We built Grandmark on a different principle: if we can fix your problem, the diagnostic is on us.
Our founder spent years watching technicians in the industry charge customers for diagnostics, then oversell them on replacements they didn’t need. He started Grandmark to do the opposite — diagnose honestly, repair what can be repaired, and prove every step on video.
Diagnostic Fee Waived.
Call or Submit Now.
We diagnose on video, show you exactly what’s wrong, and give you an honest quote. Approve the repair and the diagnostic fee disappears. No pressure. No upsell. Ever.
Fee Waived on Approved Repairs.
60 seconds. No pressure. A licensed Fresno tech calls you back fast.