Clovis’ 24/7 AC & Heating Experts—Comfort, Anytime You Need It
Imagine your Clovis home or business always comfortable, no matter the season or the hour.
At Grandmark Service Company, we deliver fast, reliable heating and air conditioning services—24 hours a day, 7 days a week. Whether it’s a late-night AC emergency or a routine upgrade, our expert team is ready to help, with honest advice, prompt service, and a 100% satisfaction guarantee.
Why Grandmark Is Clovis’ Top Choice for HVAC
- True 24/7 Emergency Service: We’re on call day and night, weekends and holidays.
- Same-Day Repairs: Most issues fixed in just one visit.
- Free Diagnostics with Repair: Get clear answers before you commit.
- 0% Financing for 5 Years: Affordable comfort for every family or business.
- Transparent, Upfront Pricing: No hidden fees—just honest, detailed quotes.
- Satisfaction Guarantee: We’ll make it right if you’re not completely satisfied.
- Local, Highly Trained Technicians: We know Clovis’ climate, codes, and HVAC needs.
Full-Service HVAC Solutions in Clovis
We offer a complete range of residential and commercial heating and cooling services:
From sudden breakdowns to energy-efficient system upgrades, our team diagnoses and solves AC problems fast. We help you select and install the perfect unit for your needs and budget.
Furnace Repair & Replacement
Stay warm all winter with reliable furnace repairs and replacements. We service all brands and offer high-efficiency options to lower your energy bills.
Preventative Maintenance
Routine maintenance keeps your system running smoothly, extends equipment life, and helps prevent costly breakdowns. Ask about our maintenance plans for year-round peace of mind.
Ductless Mini-Split Systems
Great for additions, older homes, or rooms needing targeted comfort—no ducts required.
Commercial HVAC Services
From offices to retail and industrial spaces, we deliver custom solutions to keep your Clovis business comfortable and efficient.
Proudly Serving Clovis & Surrounding Communities
Grandmark Service Company covers all of Clovis—including Old Town, Loma Vista, Harlan Ranch, and the surrounding neighborhoods—as well as Fresno, Madera, Sanger, and more. Wherever you are in the Clovis area, our 24/7 team is just a call away.
Helpful Clovis Resources for Homeowners & Businesses
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Clovis Planning & Development Services:
For building permits, planning, and development info, visit the City of Clovis Planning Division.
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Clovis Fire Department:
For fire safety, inspections, and emergency info, check out the Clovis Fire Department.
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Clovis Building Division:
For building codes, permits, and inspections, visit the Clovis Building Division.
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Fresno County Environmental Health:
For air quality, environmental permits, and public health info, go to Fresno County Environmental Health.
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Clovis Chamber of Commerce:
Connect with local businesses and events at the Clovis Chamber of Commerce.
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PG&E Rebates & Energy Efficiency Programs:
Save on energy bills! Explore rebates and programs at PG&E Rebates.
Contact Grandmark—Clovis’ 24/7 HVAC Help
Don’t let heating or cooling issues disrupt your comfort. Call Grandmark Service Company any time—day or night—at (559) 245-1485 or book your appointment online.
We’re open 24/7 and ready to help when you need us most.
Experience the Grandmark Difference
With over 25 years serving Clovis and the Central Valley, we’re more than just an HVAC company—we’re your neighbors. Our mission is to make families and spaces comfortable so you can build memories. Choose Grandmark for honest advice, fast response, and total peace of mind—any time, any day.
