Book an Appointment

5-STAR REFRIGERATION

Book a Service
Call Now!
Rock Hard technicians performing commercial AC preventative maintenance inspection on rooftop package unit
Commercial AC Maintenance · North Texas

Commercial AC Maintenance
in North Texas

Scheduled preventative maintenance for commercial air conditioning systems throughout North Texas — before the Texas summer shuts your system down. Rooftop units, split systems, and mini-splits, all major brands.

Call 469-290-7316 Request an Estimate
Licensed & Insured
OEM Parts Only
5-Star Rated
North Texas Coverage
Commercial AC maintenance · North Texas

Stop peak-season failures before they happen

The single most common cause of a commercial AC breakdown in July or August is deferred maintenance. A capacitor that's been failing for months finally gives out. A condenser coil so dirty the system can barely reject heat. A refrigerant charge that's been slightly low since the last repair. None of these announce themselves — they just wait until the worst possible moment.

Rock Hard Refrigeration provides scheduled commercial AC preventative maintenance for businesses throughout North Texas. A spring pre-season visit catches the issues above before they become mid-summer emergencies — and sets your system up to handle the months of continuous operation that North Texas demands.

Two Rock Hard technicians inspecting commercial rooftop package unit during preventative maintenance visit

What's included in a commercial AC maintenance visit

Every Rock Hard PM visit covers the full system — not just a quick filter swap and invoice.

Refrigerant level check and pressure testing — low charge is the leading cause of premature compressor failure
Condenser and evaporator coil cleaning — dirty coils force the system to work harder, driving up energy costs and heat stress
Capacitor and contactor testing — capacitors are the most common single-point failure on commercial AC; we test and flag ones showing weakness
Electrical connections and wiring inspection — loose connections cause voltage drop, heat, and eventual component failure
Thermostat calibration and controls check — ensures setpoints are accurate and zone controls are communicating correctly
Filter inspection and service — clogged filters reduce airflow, stress the blower, and send dust straight to the evaporator coil
Condensate drain inspection and clearing — blocked drains cause water damage and trigger system shutdowns
Blower motor and belt inspection — worn belts and failing motors are often audible long before they fail
System performance verification — temperature differential across the coil and supply/return air readings confirm the system is performing to spec
Rock Hard technicians opening commercial AC unit panel during maintenance inspection
Rock Hard technician accessing RTU electrical compartment and controls during maintenance

Commercial AC maintenance memberships

Our maintenance memberships include scheduled PM visits on a frequency matched to your system type and usage, priority scheduling for repair calls, and discounted repair rates when something does need fixing. For businesses that can't afford AC downtime, a membership is the most cost-effective way to protect your equipment investment.

North Texas spring pre-season visits book fast

March–May is the busiest time for commercial AC maintenance scheduling in North Texas. Businesses that wait until June to schedule a pre-season visit often find July dispatch windows when temperatures are already over 100°F. Get on the schedule early.

Why PM matters

What deferred maintenance actually costs

A commercial AC PM visit typically costs a few hundred dollars. A compressor replacement on a mid-size RTU starts at several thousand and can easily exceed that with crane work and refrigerant charges. A capacitor that costs very little to replace proactively can take down a system if it fails during peak demand — adding an emergency service call, lost business during downtime, and potential equipment damage.

The math on preventative maintenance is straightforward. The only question is timing: do you maintain on your schedule, or does your equipment make that decision for you?

Prevent compressor failures — the most expensive commercial AC repair
Maintain energy efficiency — dirty coils and low refrigerant add 15–25% to operating costs
Extend equipment life — properly maintained RTUs routinely last 15–20 years
Priority scheduling when you need repairs — membership clients get fast dispatch
Twice-Yearly Visits
Spring pre-cooling and fall pre-heating visits for combination RTU and heat pump systems serving North Texas facilities.
Priority Dispatch
Membership clients get priority scheduling for repair calls — critical when your AC fails during a North Texas summer heat wave.
OEM Parts Used
Any parts replaced during a maintenance visit are OEM components — no aftermarket substitutes that fail faster and void warranties.
Discounted Repairs
Membership clients receive discounted repair rates when something does need fixing — scheduled or emergency.
Rock Hard technicians on rooftop during commercial AC maintenance
Rock Hard technician servicing commercial rooftop package unit
Rock Hard technicians on commercial rooftop during AC maintenance inspection
Jason from Rock Hard Refrigeration with white service truck
Service areas

Serving North Texas businesses

Based in Aubrey, TX — commercial HVAC service across Denton and Collin Counties and the greater DFW metro.

Aubrey, TX
Frisco, TX
McKinney, TX
Prosper, TX
Plano, TX
Allen, TX
Lewisville, TX
The Colony, TX
Princeton, TX
View all areas
Frequently asked questions

Commercial AC maintenance — answered

How often should a commercial AC system be maintained in North Texas?
Commercial AC systems in North Texas should be professionally serviced at minimum twice per year — a spring pre-season visit before peak cooling demand, and a fall visit to prepare for heating season on combination RTU systems. Given North Texas summers, the spring visit is the more critical of the two. Catching low refrigerant, dirty coils, or a weak capacitor in April prevents a system failure in July.
What does a commercial AC maintenance visit include?
A Rock Hard commercial AC maintenance visit includes refrigerant level check and pressure testing, condenser and evaporator coil cleaning, capacitor and contactor testing, electrical connection inspection, thermostat calibration, filter service, condensate drain inspection and clearing, blower motor and belt inspection, and full system performance verification.
What is included in your commercial AC maintenance membership?
Our maintenance memberships include scheduled PM visits at the right frequency for your system, priority scheduling for repair calls, and discounted repair rates. Membership clients are prioritized during peak summer demand when everyone needs service at once.
Do you service all commercial AC brands?
Yes. We maintain all major commercial AC brands including Trane, Carrier, Lennox, and others. We use OEM parts for any components replaced during a PM visit to maintain equipment warranties.
What areas of North Texas do you serve for commercial AC maintenance?
We serve businesses throughout North Texas including Aubrey, Frisco, McKinney, Prosper, Plano, Allen, Lewisville, The Colony, Princeton, and surrounding communities in Denton and Collin Counties.
Get started

Schedule commercial AC maintenance

Tell us your system type, facility, and North Texas location — we will get you on the PM schedule.

Twice-yearly pre-season visits for RTUs, split systems & mini-splits
Licensed & insured · OEM parts · North Texas coverage
Prefer to call?
469-290-7316
1518 Navo Rd Ste A1, Aubrey TX 76227
Request a Free Estimate
We will respond within one business day