AC Not Working?
We Fix It Today.
Whether your AC needs a quick repair or a full replacement — Grandmark diagnoses it on-site, shows you video proof of exactly what’s wrong, then fixes it same day. No guesswork. No overselling. Just cold air — fast.
We’ll Figure It Out Together.
Repair or replace — we’ll diagnose it first. No pressure. No upsell. A licensed Fresno tech calls you back fast.
Other Companies Quote.
We Prove It First.
Any HVAC company can show up and give you a number. Grandmark shows you the problem on video, fixes it the same day, then sends you proof it’s done right — before you pay.
We record before and after — every penetration, every seal, every connection. You watch it before you sign. No other company in Fresno does this.
Digital gauges and micro-camera inspection before any number is given. You pay for what’s actually wrong — not what’s easiest to sell.
Every roof penetration is professionally flashed and sealed by our own licensed roofing crew. Most HVAC techs caulk and walk. We don’t.
Open 24/7 for emergencies. 1,200+ five-star reviews. BBB A+. GAF Master Elite. Bosch Authorized. We’ve been here — we’ll be here after the job.
Don’t Let the Price
Stop You from Staying Cool.
A new system shouldn’t break the bank. Grandmark offers $0 down and 0% interest for 18 months — or spread it out up to 12 years at 4.99% APR. No early payoff penalty. Approved in minutes on both Bosch and economy units.
Payment
18 Months
12 Years
Fast credit decision on-site. No waiting days for an answer.
Pay it off whenever you want. No fees, no catches.
Bosch high-efficiency and economy units both eligible.
Don’t sweat through the summer waiting to save up.
Available for qualified buyers · Ask about same-day approval · Subject to credit approval
High-Efficiency or Economy.
Both Installed Same Day.
Not sure which is right for you? Our tech will walk you through the numbers on-site — no pressure, no upsell. Both units qualify for $0 down financing.
The best long-term value for Fresno’s 110° summers. Lower bills, quieter operation, longer life.
Code-compliant, reliable, and fast to install. The smart choice when budget is the priority.
Not sure which unit fits your home? Call us — we’ll run the numbers on-site and tell you exactly which one makes sense for your budget and usage.
From Your Call to
Cold Air in Hours.
No waiting weeks. No surprise charges. No wondering what happened on your roof. Here’s exactly what happens when you call Grandmark.
Tell us what’s happening. We schedule you — often same day. No pressure, no upsell calls.
A licensed tech diagnoses with digital gauges and micro-cameras. You see what’s wrong on video — before any quote.
Choose Bosch or economy. Financing approved in minutes. $0 down available — no early payoff penalty.
One crew installs everything — sealed, cleaned, roof-waterproofed. You receive a completion video before you sign off.
video proof. No exceptions.
1,200+ Fresno Families
Can’t Be Wrong.
Google · Yelp · BBB
“They found an issue created by another company that could’ve set my home on fire. Tony and his partner did such an incredible job and completed the work in a timely manner. I would definitely recommend this company.”
“Three other companies gave me quotes without even looking at the system. Grandmark ran a full diagnostic, found the real issue, and saved me over $2,000. These guys are the real deal.”
“I’ve had contractors tell me what they did. Grandmark showed me on video — before and after. That’s the only way I’ll ever hire a contractor again. Completely changed my standard.”
“Called at 8am with a dead AC in 108 degree heat. They were at my house by noon, diagnosed it fast, and had cold air running by 4pm. Same day. Unbelievable service.”
“Tony was very professional and thorough. He took the time to answer every question, showed me what was wrong on camera, and never once tried to upsell me. Honest company — rare to find.”
“The financing made it possible. $0 down and they had us approved in about 10 minutes. New Bosch system installed the same day. Our electric bill dropped $80 the first month.”
Join 1,200+ Fresno families who chose Grandmark.
Same-day service available now.
Questions We Hear
Every Day.
Still on the fence? These are the questions every Fresno homeowner asks before calling. We answer them straight — no fluff.
Just call us.
A real tech answers — not a call center. We’ll give you a straight answer in under 5 minutes.
(559) 245-1485Available 24/7 · Emergency service always on
Yes. Qualified buyers get $0 down and 0% interest for 18 months. For longer terms up to 12 years, rates start at 4.99% APR with no early payoff penalty. We can check your options in minutes when you call — no hard pull required to get a ballpark.
Both. We diagnose first before recommending anything. If a repair is the right call, we say so — we don’t push replacements when they’re not needed. Video proof of the diagnosis is included either way.
Most calls in Fresno and Clovis get same-day service. Emergency calls are answered 24/7. When you call, we’ll give you an honest ETA — not a 4-hour window you have to sit and wait for.
Before we start, we record video showing exactly what’s wrong and what needs to be done. After installation, we record again — every seal, penetration, and connection confirmed on camera. You receive both videos before you sign anything. No other HVAC company in Fresno does this.
Bosch high-efficiency units run quieter, use significantly less electricity, and last longer — better long-term value in Fresno’s extreme heat. Economy units are code-compliant, reliable, and have a lower upfront cost. Both include Grandmark’s installation warranty and video proof, and both qualify for $0 down financing.
Yes — fully. CSLB License #1030917. Fully licensed and insured. GAF Master Elite Certified. Bosch Authorized Dealer. BBB A+ Rated. 29 years serving Central California homeowners. You can verify our license at cslb.ca.gov anytime.