You Deserve to See What’s Wrong

Most HVAC companies sell you a unit. We show you exactly why you need it—on video.

  • Licensed & Insured · CSLB #1030917
  • Family Owned Since 1996
  • Under 10-Minute Response
  • 1,200+ Online Reviews
See how we quote — nothing hidden

Why Most HVAC Companies Don’t Show You Proof

Corporate-Owned Chains

They care about volume, not transparency. You get a salesman, not a technician.

No Video Proof

They tell you what’s wrong. They don’t show you. You just have to trust their diagnosis.

Hidden Upsells

After they fix the “main” problem, surprise charges appear. No transparency on pricing.

Here’s How Grandmark Is Different

The full walkthrough

Every customer gets video proof of their AC problem and the solution. No guessing. No hidden fees.

Grandmark vs. Big Corporate HVAC

FeatureCorporate ChainsGrandmark
Video Proof of ProblemNoYes
Transparent PricingNoYes
Local OwnershipNoYes
Same-Day ServiceSometimesYes
Show You the WorkTell OnlyVideo + Photos
Warranty GuaranteeLimitedFull Documented
Response Time24–48 hrsUnder 10 minutes

Real Customers. Real Proof.

“I’d recommend them to anyone who needs HVAC work or a new roof. It just did not get any better.”

Tom · Verified Customer

“VERIFY WORDING — even the neighbors have been praising the work they did.”

John · Verified Customer

Our Transparent 4-Step Process

  1. We Arrive Fast

    Same-day or next-day service. We respect your time.

  2. We Diagnose with Video

    We show you exactly what’s wrong—on video—before quoting the fix.

  3. We Explain Clearly

    Transparent pricing. No surprises. You know exactly what you’re paying for.

  4. We Document the Fix

    Video proof of the work completed. Your guarantee in writing.

Ready to See the Difference?

During the heat wave, we’re prioritizing emergency calls. Same-day service available.

Or call (866) 945-6473 for immediate assistance

Frequently Asked Questions

Why do you use video proof?

Because you deserve to see what’s actually wrong with your AC before paying for a fix. Video proof eliminates guessing and builds trust.

How much does a video diagnosis cost?

There’s an $89 diagnostic fee, and it’s applied straight to your repair when you approve the work. So if we fix it, the diagnosis costs you nothing—and either way you walk away with video of exactly what we found.

How fast can you respond?

We respond to service requests in under 10 minutes during business hours, with same-day appointments available. After-hours emergency service is available too.

Do you offer warranties?

Yes. All repairs come with a TERM warranty, fully documented with video proof.

Are you local?

Yes. Grandmark is family-owned and operated since 1996—30 years in the same community. We’re not a corporate chain.

1,200+Online reviews from real customers
Since 1996Thirty years, locally owned & operated
CSLB #1030917Licensed & insured

Don’t Wait. Get Video Proof Today.

Heat wave special: same-day service available. Call or book online.