Commercial HVAC Services In Dallas-Fort Worth
Repair, Installation & Maintenance | 24/7 Emergency Service | All Building Types
Reliable Commercial HVAC Contractor in Dallas-Fort Worth
When your business depends on a comfortable environment, you need a commercial HVAC contractor you can trust. At LEX Air Conditioning, we’ve been keeping DFW businesses cool since 2004 — from small retail shops to large office complexes.
Our certified technicians understand that HVAC issues don’t just affect comfort — they impact your bottom line. That’s why we offer 24/7 emergency service, rapid response times, and customized maintenance programs designed to keep your systems running efficiently year-round.
Whether you need emergency AC repair, a complete system replacement, or preventive maintenance to avoid costly breakdowns, LEX Air delivers the same white glove service to commercial clients that’s made us a trusted name in residential HVAC.
- Trane Comfort Specialist dealer
- NATE-certified technicians
- All makes and models serviced
- Competitive commercial pricing
Industries We Serve
Commercial HVAC solutions for every type of business
Office Buildings
Keep employees productive with reliable climate control.
Retail Stores
Create a comfortable shopping experience for customers.
Restaurants
Specialized solutions for kitchens and dining areas.
Warehouses
Large-scale cooling for storage and distribution.
Medical Facilities
Critical climate control for healthcare environments.
Churches
Comfort for congregations in large gathering spaces.
Schools
Reliable HVAC for educational environments.
Multi-Family
Apartments, condos, and property management.
Our Commercial HVAC Services
Commercial AC Repair
When your commercial AC breaks down, every minute counts. Our technicians respond quickly to diagnose and repair issues with all types of commercial cooling systems, from rooftop units to split systems and chillers.
Commercial AC Installation
Need a new commercial HVAC system? We design and install custom solutions sized for your specific building and business needs. Our team handles everything from load calculations to permits and final commissioning.
Commercial Heating Services
Keep your building warm when temperatures drop. We service and install commercial furnaces, boilers, heat pumps, and rooftop heating units to ensure reliable warmth throughout the winter months.
Preventive Maintenance
The best way to avoid costly breakdowns is regular maintenance. Our commercial maintenance programs include scheduled inspections, cleaning, and tune-ups to keep your systems running at peak efficiency.
Indoor Air Quality
Protect your employees and customers with commercial air quality solutions. From air purification to humidity control and duct cleaning, we help create a healthier indoor environment.
Commercial Ductwork
Properly designed and maintained ductwork is essential for efficient commercial HVAC. We design, install, and repair commercial duct systems to ensure optimal airflow and efficiency.
Why Choose LEX for Commercial HVAC?
22+ Years Experience
Family-owned and operated since 2004, proudly serving our community.
Fast Response Times
Based in Plano, we serve with 35-50 minutes typical response.
Flexible Financing
Multiple financing options available. 0% financing for qualified buyers.
Licensed & Insured
Fully licensed electricians, HVAC, and plumbers. All work permitted.
100% Satisfaction Guaranteed
We stand behind our work with a complete satisfaction guarantee.
Local Family Business
LEX is a local family business serving the DFW area.
Commercial HVAC FAQs
How often should commercial HVAC systems be serviced?
Commercial HVAC systems should be professionally serviced at least twice per year — once before cooling season (spring) and once before heating season (fall). However, systems with heavy usage such as restaurants, retail stores, and medical facilities often benefit from quarterly maintenance. High-traffic buildings or those with 24/7 operations may need monthly filter changes and more frequent inspections. Regular maintenance prevents costly breakdowns, extends equipment life, and keeps energy bills in check.
What types of commercial buildings do you service?
We service all types of commercial properties throughout Dallas-Fort Worth, including office buildings, retail stores, shopping centers, restaurants, warehouses, distribution centers, medical and dental offices, veterinary clinics, churches, schools, daycares, gyms, salons, auto dealerships, and multi-family properties (apartments, condos). Our technicians are trained on a wide variety of commercial HVAC equipment and can handle everything from small single-zone systems to large multi-unit installations.
Do you offer 24/7 emergency commercial HVAC repair?
Yes, we provide 24/7 emergency commercial HVAC repair services throughout Dallas-Fort Worth. We understand that HVAC failures can significantly impact your business operations — whether it’s a restaurant that can’t open, a server room that’s overheating, or an office building full of uncomfortable employees. Our emergency team prioritizes rapid response times to minimize your downtime and get your business back to normal as quickly as possible. Call (972) 466-1917 any time, day or night
How long does a commercial HVAC system last?
Commercial HVAC systems typically last 15-20 years with proper maintenance. Rooftop units (RTUs) average 15-20 years, while chillers may last 20-25 years. However, systems that run continuously, operate in harsh conditions, or don’t receive regular maintenance may need replacement sooner — sometimes as early as 10-12 years. Signs it’s time to replace include frequent repairs, rising energy bills, inconsistent temperatures, and R-22 refrigerant (which is being phased out). Regular maintenance is the best way to maximize your equipment’s lifespan
Do you offer commercial HVAC maintenance contracts?
Yes, we offer customized commercial maintenance agreements tailored to your specific equipment, building size, and business needs. Our programs include scheduled inspections, preventive maintenance, filter replacement, priority emergency service, and discounted repair rates. We work with you to create a maintenance schedule that fits your operations — whether that’s after-hours service to avoid disrupting your business or specific timing based on your equipment’s needs. Contact us for a custom quote
What brands of commercial HVAC equipment do you work on?
We service all major brands of commercial HVAC equipment, including Trane (we’re a Trane Comfort Specialist), Carrier, Lennox, York, Rheem, Ruud, Daikin, Goodman, American Standard, Bryant, and many others. Whether you have rooftop units, split systems, chillers, boilers, or specialty equipment, our technicians have the training and experience to service it. We also install new Trane commercial equipment for businesses looking to upgrade
How quickly can you respond to a commercial HVAC emergency?
For commercial emergencies, we prioritize rapid response. In most cases, we can have a technician on-site within 2-4 hours during business hours, and the same day for after-hours emergencies. Response times may vary based on current call volume and your location, but we always communicate clearly about when you can expect us. Commercial maintenance agreement customers receive priority scheduling and faster response times
Can you help with new construction or tenant buildouts?
Yes, we work with contractors, property managers, and business owners on new construction HVAC installations and tenant improvement projects. Our services include HVAC system design, load calculations, equipment selection, installation, and final commissioning. We coordinate with other trades to ensure your HVAC system is properly integrated with the building and meets all code requirements. Contact us early in your project for the best results