108°F doesn’t care how new your system is
Fresno summers push AC units through months of nonstop 100°F+ runtime — conditions most systems outside the Central Valley never see. That’s the pattern behind most of our repair calls: it’s rarely one dramatic failure, it’s the same three stresses compounding every summer until something finally gives out.
Nonstop runtime cycling
A system that would idle through mild days elsewhere runs nearly continuously here for months. Capacitors, contactors, and compressors wear years faster under that load than the manufacturer’s rated lifespan assumes.
Slow refrigerant leaks
A slow leak doesn’t announce itself — it just makes your system work harder and cool less, until a capacitor or compressor finally fails from the strain. We check for leaks first, not just recharge and move on.
Duct heat load
Leaking or poorly sealed ductwork forces your AC to fight a losing battle against attic heat before the cooled air even reaches a room. Most homeowners never see this happening — it just shows up as a high bill and a system that never quite keeps up.
Pick the scope that matches your system
Every service below includes a free video diagnostic before we quote a dollar — no exceptions. Whether it’s a single failed capacitor or a full system replacement, the process is the same: we look, we document, we give you one clear number.
Emergency HVAC
AC failure at 108°F is a health emergency, not a scheduling issue. Same-day dispatch, no weekend upcharge.
See emergency service →AC Repair
We find the leak before recharging, and diagnose why the capacitor failed early. Video-documented every time.
See repair scope →AC Replacement
Right-sized using a Manual J load calculation — not just matching the old system’s tonnage. $0 down available.
See replacement scope →Heating Repair
Furnace diagnosis, heat pump repair, and carbon monoxide safety checked on every call.
See heating scope →HVAC Maintenance
The annual tune-up that prevents the failures Fresno’s heat causes — coil cleaning, capacitor testing, refrigerant check.
Why this saves you money →HVAC Financing
$0 down, 0% interest for 18 months, same-day approval, no hard credit pull.
See financing options →Four steps. Documented at every one.
You call us
Speak with a local Fresno HVAC expert. Same-day service available across Fresno County.
Video diagnosis
Full video-documented diagnosis before quoting a single dollar. You see exactly what we find, not just what we say.
You approve the quote
Exact scope, exact cost in writing. No open-ended invoices, no surprises on the bill once the job’s done.
Fixed & guaranteed
Same problem comes back, we return at no charge. Fix it right, or you don’t pay — that’s the rule on every repair.
Why we diagnose on video instead of just quoting
Most Fresno HVAC companies recharge your refrigerant and leave, or push a full replacement before checking whether a single part actually failed. We find the real cause first — a leak, a failing capacitor, a duct that’s losing conditioned air — and show it to you on camera before we quote anything. It’s the same standard we hold ourselves to on the roofing side of the business: proof, not promises. Read the full explanation on The Grandmark Standard →
What the video diagnostic actually catches
25+ years serving Fresno’s HVAC needs means most of our new calls come from a neighbor, a past customer, or someone who found us because a friend showed them their own diagnostic video. That’s the reputation we’d rather build than any ad campaign — real jobs, documented, in the neighborhoods we actually work. Read all 1,200+ Google reviews →
Had the same AC problem fixed twice by two other companies. Grandmark found the real cause on video — a slow refrigerant leak nobody had checked.
AC went out on a Saturday in July. Grandmark came out same day, diagnosed it on video, and had it fixed within two hours.
They replaced our AC and sealed the ducts at the same time. House is cooler than it’s been in years, with video proof of every step.
$0 down. Pick the term that fits.
No hard credit pull · same-day approval · no early payoff penalty. Most Fresno homeowners qualify same-day.
What’s going on? We’ll text back within 24 hours.
No pressure, just real numbers. Prefer to talk it through? Call (559) 245-1485 instead.
Fresno HVAC FAQ
How much does AC repair cost in Fresno?
Most AC repairs range from $150 to $2,500 depending on what failed. A capacitor replacement typically runs $200-$400, a refrigerant recharge with leak repair runs $400-$800, and a compressor replacement runs $1,200-$2,500. Fresno’s extreme heat accelerates component wear faster than almost anywhere else in California — we give you a written quote before any work begins.
Are you a licensed HVAC contractor in Fresno?
Yes. Grandmark Service Company is a fully licensed HVAC contractor — CSLB #1030917. Our technicians are licensed, insured, and trained on all major brands, and every job is completed to California Title 24 energy code standards.
How long does AC replacement take?
Most residential replacements are completed in a single day — typically 4 to 8 hours depending on system complexity and whether duct work is included. We start with a Manual J load calculation to size the system correctly for Fresno’s heat, and you get a confirmed timeline in writing before work begins.
Do you offer a warranty on HVAC work?
Yes — every repair and replacement is backed by our fix-it-or-you-don’t-pay guarantee. If the same problem comes back, we return at no charge. Replacements also include the manufacturer’s equipment warranty, up to 10 years on parts depending on brand and system.
Do you offer same-day HVAC service?
Yes. We dispatch same-day from our Fresno office and carry the most common parts on every truck to handle repairs in a single visit. For AC emergencies — no heat, no cooling — same-day is our standard, not an upgrade.
Do you serve Clovis, Madera, and surrounding cities?
Yes — our Fresno office serves Fresno and all surrounding communities including Clovis, Madera, Sanger, Selma, Reedley, Kingsburg, Fowler, Kerman, Parlier, and Mendota. Call to confirm availability in your specific area.
More ways we help Fresno homeowners
Roofing Services in Fresno →
Same crew standard, same video proof — for roof repair, replacement, and inspection.
Fresno HVAC Cost Guide →
What AC repair and replacement actually costs in Central California, and how financing works.
Emergency HVAC Service →
AC or heat down right now? Same-day dispatch details and what to expect.
Fresno County HVAC coverage
One local Fresno office, one licensed crew, serving Fresno, Clovis, Madera, Sanger, Selma, Kingsburg, Kerman, Fowler, Parlier, and Mendota. See the full list of every city we serve →
Get your free HVAC video diagnostic
Same-day availability in most areas. Video proof, every job, no exceptions.
Serving Fresno & Fresno County
Based in Fresno, dispatching crews across Fresno, Clovis, Madera, and surrounding Fresno County communities.
(559) 245-1485 · CSLB #1030917