STOP THE GUESSWORK. START PROTECTING YOUR HOME.

We don’t just fix machines; we protect the structure they sit on. Whether it’s a simple repair or a full system replacement, we leverage our X-Ray AC Diagnostics to find the truth and our Roofing Mastery to ensure your home’s envelope is never compromised.

We don’t just fix machines; we protect the structure they sit on. Whether it’s a simple repair or a full system replacement, we leverage our X-Ray AC Diagnostics to find the truth and our Roofing Mastery to ensure your home’s envelope is never compromised.

Call Now: (559) 245-1485

OUR HVAC SERVICES

AC REPAIR

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AC INSTALL

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AC REPLACEMENT

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COMMERCIAL AC

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AC REPAIR

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AC INSTALLATION

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AC REPLACEMENT

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COMMERCIAL HVAC

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CUSTOMER REVIEWS

★★★★★

Tony and his partner did such an incredible job and completed the work in a timely manner. They found an issue created by another company that could’ve set my home on fire. I would definitely recommend this company based on their work ethic!

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★★★★★

Tony was very professional and friendly. He was thorough in his work. I appreciate that he took the time to answer my questions and listen to my concerns regarding my AC unit. He represents his company well. Thank YOU Tony.

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★★★★★

Tony was great. Performed maintenance on our units. They were rubbing just fine and we want them to stay that way. Thanks

★★★★★

Tony was very pleasant and professional. He even changed my air filter for me.

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Call Now: (559) 245-1485

SURGICAL REPAIR & DIAGNOSTICS

SEE THE TRUTH WITH X-RAY AC. Why pay for a technician’s "best guess"? We use proprietary X-Ray AC Diagnostics to look inside your system’s veins.

PRECISION FIXES: We identify microscopic cracks and electrical faults that standard tools miss.
NO PART-SWAPPING: We find the exact root cause, saving you time and money on unnecessary repairs.
SAFETY FIRST: Every heating service includes an X-Ray scan of your heat exchanger to guarantee no carbon monoxide leaks.

INTELLIGENT COOLING & HEATING SOLUTIONS

PROTECTING YOUR ATTIC, YOUR ROOF, AND YOUR AIR. When it’s time for a new system, we prioritize your home’s structural integrity. While others destroy your "crawl holes" and contaminate your air with attic dust, we provide a cleaner, smarter alternative.

ROOF-PRO INSTALLS: We prefer moving equipment to the roof to save your interior. Because we are master roofers, we use professional flashing—not just caulk—to guarantee a 100% watertight seal.
HYBRID HEAT PUMPS: Experience high-efficiency heating and cooling with an installation that respects your home’s thermal envelope.
DUCTLESS MINI-SPLITS: Zoned comfort for any room, featuring waterproof exterior seals that HVAC-only companies simply can't match.

THE GRANDMARK® PROTECTION ADVANTAGE

SERVICE	"STANDARD" CONTRACTORS	THE GRANDMARK
DIAGNOSIS	Visual Guesswork	X-Ray AC Precision Data
ROOF WORK	Clueless (Caulk & Walk)	Master-Level Roofing Seals
ATTIC CARE	Damaged Access & Dust	Interior Integrity Preserved
REPAIRS	Trial & Error Part Swaps	Surgical, One-and-Done Fixes

A HIGHER STANDARD FOR EVERY HVAC NEED

A "cheap" repair is the most expensive thing you can buy if it doesn't work. We provide Proof-Based Repair. We don't just tell you a part is bad; we show you the readings on our digital tools. You get a full report of what we found, allowing you to make a decision based on facts, not a sales pitch. This transparency is why Fresno homeowners trust us with their biggest home investment.