Roofing · Air Conditioning · Central California
A home that stays cool, dry & protected — guaranteed.
One call. One company. Your roof sealed tight and your AC running clean — with video proof you can see before we even send an invoice.
The only contractor in Central California that fixes your roof and your air as one complete system.
Call (866) 280-5944
Most homeowners spend thousands — and still end up with the same problem.
Here’s why roofing and HVAC jobs fail to actually fix anything.
Your roofer ignores your ducts — and you pay for it later.
The deck is wide open. The ducts are right there. But your roofer isn’t an HVAC tech, so they do nothing. You get a new roof with a contaminated, leaking duct system underneath it.
Your HVAC tech leaves holes in your roof — and calls it done.
New AC installed, but the penetrations are patched by someone who doesn’t roof for a living. Six months later: water damage, callbacks, and nobody taking responsibility.
You get an opinion and an invoice — not proof of anything.
No documentation. No video. No record of what was actually done. Just a guess dressed up as a quote — and the bill arrives before the problem is confirmed.
Years in business.
Verified reviews
Average Rating
BBB Rated
Two divisions. One company. Your entire home covered.
Tell us what’s happening — we’ll handle everything from the ridge to every duct register.
A new roof that keeps everything out — including the heat.
Grandmark Roofing replaces your roof and your ducts in the same job. Clean. Sealed. Contamination-free. No callbacks.
Included on every roofing job
New roof · Duct replacement through open deck · All penetrations sealed · Pre & post video report.
An AC that actually cools your home — not just your energy bill.
Grandmark Air Conditioning runs a full diagnostic first so you only pay for what’s wrong. Fixed right. No leaks. No callbacks.
Included on every HVAC job
Full diagnostic · HVAC replacement · Roofer-sealed penetrations · Ducts cleaned · Pre & post video report.
Homeowners across Central California finally got What They Paid For
Over 1,200 verified reviews. Here’s what three of them said.
4.8 ★
★★★★★ across 1,200+ verified reviews
Google · Yelp · BBB · HomeAdvisor
★★★★★
“Our house is finally comfortable in the summer. They did the roof and the ducts at the same time — I didn’t even know that was possible. Best decision we’ve made as homeowners.
Maria T.
Fresno, CA
★★★★★
I’ve had contractors tell me what they did. Grandmark showed me on video. I watched every step of the job myself. That’s the only way I’ll ever hire a contractor again.
James R.
Bakersfield, CA
★★★★★
Three companies gave me quotes without even looking at the system. Grandmark ran a diagnostic and found the real issue. Saved me over $2,000 and my AC has been perfect ever since.
Sandra M.
Modesto, CA
From one phone call to a home you’re proud of — here’s exactly what happens.
Simple, transparent, and documented at every step.
You call — we listen, not assume.
Roofing starts with a free on-site estimate. HVAC starts with a diagnostic — so we find the real problem before quoting.
You see the full picture before we start.
Pre-job video inspection of your roof, ducts, and penetrations. You know exactly what’s wrong — on camera — before a dollar is spent.
One team handles everything — no excuses.
Roofers and HVAC techs working together. No subcontractors. No finger-pointing. One accountable team, start to finish.
You walk away with proof — not just a receipt.
Completion video delivered. Every seal confirmed. Every duct clean. A permanent record that’s yours to keep forever.
You shouldn’t have to take our word for it. So we put it all on camera.
Every job is documented before and after — on video. If we can’t prove what we did and why, you don’t pay. That’s the Grandmark standard.
The Grandmark proof guarantee
Pre-job video inspection. Post-job completion video. If we can’t show you what we did — you don’t pay. We’re GAF Master Elite certified, Bosch Authorized, BBB A+ rated, fully licensed and insured. 29 years and 1,200+ five-star reviews in Central California. We don’t ask for trust. We earn it — on video, on every single job.
Serving all 5 California markets
Licensed roofing crews dispatched from 5 offices. Same-day service available in most areas.
Fresno
Sacramento
Bakersfield
Stanislaus
Visalia
FAQ
Frequently asked questions
Real questions from homeowners who called us after calling someone else.
our home should keep you cool, dry, and comfortable.
One call makes that happen.
Free estimate for roofing. Diagnostic-first for HVAC. Video proof from start to finish. 29 years of showing up and standing behind the work.
Central California summers don’t wait. Neither should your roof or your AC.
Free roofing estimates · Diagnostic-first HVAC · No guesses · Video proof on every job