Fast, Honest AC & Heating Solutions Built for the Desert Heat
When the Las Vegas heat strikes, Cosmo's Heating and Air Conditioning keeps your family cool with expert AC repair, installation, and 24/7 emergency service. Backed by Cosmo's Comfort Guarantee™.
Comprehensive HVAC Services for Homes & Businesses
From rapid cooling repairs to whole-home duct sanitization, our certified crew delivers precision work backed by transparent pricing.
Air Conditioning Repair
Rapid diagnostic and repair for all AC makes and models. We solve cooling loss, refrigerant leaks, compressor failures, and noisy units fast.
Schedule AC Repair →AC Installation & Replacement
High-efficiency cooling systems engineered for severe desert temperatures. Clean, code-compliant installations with free second opinions on replacements.
Get Free Estimate →Heating & Furnace Service
Dependable repair and replacement for gas furnaces, heat pumps, and electric heating units to keep you warm during cold desert winter nights.
Schedule Heating Check →Air Duct Cleaning & Sealing
Deep ductwork cleaning with professional-grade machines to remove years of accumulated dust, pet dander, and desert allergens while boosting airflow.
Book Duct Cleaning →Indoor Air Quality (IAQ)
Breathe cleaner air with HEPA filtration upgrades, UV-C air sanitizers, and whole-home air purifiers designed to capture up to 99% of airborne particles.
Learn About IAQ →Commercial HVAC Solutions
Commercial rooftop maintenance, coil cleaning, and cooling repairs tailored for restaurants, retail, and commercial properties across Las Vegas.
Commercial Quote →Cosmo's Comfort Club Membership
Protect your heating and cooling investment year-round! Members enjoy peace of mind, lower energy bills, and priority service.
The "Man's Most Reliable" Difference
Born and built in Las Vegas — we're your local neighbors, not a corporate call center. At Cosmo's, we treat your home like our own.
Certified Multi-Service Technicians
Our experienced technicians (like Ben and Brice) deliver honest work, transparent advice, and clean installations every single time.
Same-Day Emergency Response
When your AC breaks down in 110°F summer heat, we respond immediately with fast, reliable cooling restoration.
Free Second Opinions on Replacements
Got a costly replacement quote from another HVAC company? We'll inspect your system for free and give you an honest, transparent recommendation.
Every job is handled with precision, care, and your family's comfort as top priority.
Verbatim Customer Reviews
Read real, unedited reviews from homeowners across Las Vegas and Henderson who depend on Cosmo's.
"Honest knowledgeable and timely, Ben is the best in town."
"I always schedule our routine air conditioning maintenance right before the peak of summer, and Brice did an absolute bang up job this year. He checked the entire system inside and out, ensuring we stay perfectly comfortable through the hottest months. A completely stress-free and positive experience all around."
"Dealing with a broken system in July is miserable, but this team turned it around with an incredibly fast same day air conditioning installation. Ben braved the extreme afternoon heat to swap out our old unit seamlessly and ensure everything was running flawlessly before he left."
"To prep for the brutal summer heat, I scheduled routine air conditioning maintenance, and Ben was absolutely brilliant. He thoroughly checked every component of our system and made sure we wouldn't face any surprise breakdowns when the temperatures peak. It gives us such peace of mind knowing our system is fully optimized. Superb service from an absolutely stellar technician!"
"Cosmo's Heating and Air Conditioning provided excellent service from start to finish. The technician arrived on time, explained everything clearly, and completed the work professionally. My system is running better than ever."
"Brice tackled both systems efficiently and gave me great, honest tips for keeping our energy bills down year-round. It's rare to find such transparent and hard working professionals. Exceptional experience from start to finish!"
Cosmo's Field Gallery
Real photos of our service vehicles and field technicians at work in the Las Vegas Valley.
Service Fleet & Field Technicians
Our fully equipped mobile units respond fast across Las Vegas, Henderson, & North Las Vegas.
Precision System Installation
Clean, code-compliant outdoor compressor setup for maximum cooling efficiency.
Serving the Entire Las Vegas Valley
We provide fast residential and commercial HVAC service across the following confirmed coverage areas:
Emergency Desert Cooling Support
Our service vans are staged across Clark County for rapid dispatch. Whether you need a simple tune-up or full emergency replacement in mid-July heat, Cosmo's is on call.
Call Dispatch: (702) 960-5555Request Service or Free Estimate
Fill out the form below or call us directly. Front-end preview mode — no emails sent.
Cosmo's Heating & Air Conditioning
3170 E Sunset Rd, Ste B
Las Vegas, NV 89120
(702) 960-5555
service@cosmosaclv.com
NV Contractors License #0095036 (C-21)