- info@onecoolair.com
- Serving Houston Southwest and surrounding Areas
Professional HVAC services you can trust. From installation to maintenance, we ensure your comfort
year-round with expert service and fair pricing.
Founded and led by Lazard Dominique, 1CoolAir AC & Heating brings over 10 years of hands-on experience to every job. We are a licensed, insured, and bonded company specializing in keeping Houston families and businesses comfortable year-round. Whether you need a new installation, fast repair, or preventive maintenance, we treat your home like our own – with honesty, quality workmanship, and same-day availability whenever possible.
With over 10 years of experience serving the community, we’re committed to delivering exceptional HVAC services that keep your family comfortable year-round.
We provide comprehensive HVAC solutions for both Residential and Commercial properties.
When your heating or cooling system fails, we’re here to help. Don’t wait – call now!
Owner Lazard Dominique leads every major job.
Full peace of mind for your property.
From single-family homes to small businesses.
Nights, weekends, and Sundays (emergency only).
No surprises, no hidden fees.
100% satisfaction
Certified technicians
4.9/5 customer rating
Our Latest Completed Project
Don’t just take our word for it – hear from satisfied customers who trust OneCoolAir for their HVAC needs.
“Great service! The tech arrived on time, explained the issue clearly, and had our AC running again. Highly recommend”
HVAC system maintenance
“I had a very good experience. The service was excellent, efficient, and professional. The technician did a really good job and I would definitely recommend.”
AC Repair
“Efficient and explained everything he was doing. Will definitely use them again”
HVAC Install
Find quick info on our most common services and policies below. For direct, expert advice on your specific HVAC project, call Lazard Dominique at (346) 302-5275.
Yes – we offer 24/7 emergency service, including Sundays.
Call (346) 302-5275 anytime.
We primarily serve Southwest Houston and surrounding areas (see full city list below).
Absolutely. 1CoolAir is fully licensed, bonded, and insured for both residential and commercial work.
Yes, we provide free, no-obligation estimates for installations and replacements.
All major brands. We don’t play favorites – we fix what’s broken.
When your heating or cooling system fails, we’re here to help. Don’t wait – call now!
Contact us today for a free, no-obligation estimate. Whether it’s a quick AC repair, a complete new installation, or an emergency service call, you can count on honest service and quality craftsmanship from Lazard Dominique and the team at 1CoolAir AC & Heating.
Your trusted partner for all HVAC needs. Keeping homes comfortable since 2008.
Licensed | Insured | Bonded | 10 Years of Cool Comfort
