Preventative Maintenance Agreements
Customized PM programs designed to reduce total cost of ownership, extend equipment life, and eliminate the risk of unplanned downtime.
Preventative Maintenance Services in Oklahoma
Total Mechanical Services offers customized preventative maintenance agreements for commercial HVAC, chillers, boilers, and building automation systems across Oklahoma City, Tulsa, and statewide. Our PM programs reduce total cost of ownership, extend equipment life, and provide priority emergency response. From quarterly RTU inspections to comprehensive chiller maintenance—we tailor programs to your specific equipment and operational requirements.
Program Benefits
- PM Agreements
- Equipment Audits
- Priority Dispatch
- Energy Savings
The Cost of Reactive Maintenance
"Run to failure" maintenance seems cheaper in the short term—until a chiller fails on the hottest day of summer or a boiler shuts down during a cold snap. The true costs of reactive maintenance include:
Emergency Service Premiums
After-hours and weekend calls cost 1.5-2x standard rates. Urgent part procurement adds expedite fees.
Collateral Damage
A failed bearing doesn't just damage the bearing—it can destroy the compressor, motor, and shaft.
Operational Disruption
Lost revenue, refunded guests, diverted patients, or production shutdowns while waiting for repairs.
Shortened Equipment Life
Neglected equipment degrades faster, requiring premature replacement of major capital assets.
Maintenance Cost Comparison
*Rule of thumb: planned maintenance typically costs far less than emergency, after-hours repair and collateral damage.
Maintenance Program Options
From basic inspections to comprehensive full-coverage programs—we tailor agreements to your budget and risk tolerance.
Inspect
Basic Protection
- Quarterly equipment inspections
- Written condition reports
- Deficiency identification
- Priority scheduling for repairs
- Repairs billed separately
Best For
Budget-conscious facilities with in-house staff
Maintain
Full Preventative Care
- Everything in Inspect, plus:
- Filter replacements included
- Belt replacements included
- Coil cleaning (annual)
- 15% discount on repairs
- Priority emergency dispatch
Best For
Most commercial facilities seeking predictable costs
Protect
Full Coverage
- Everything in Maintain, plus:
- All repairs included
- Parts and labor covered
- No surprise invoices
- Guaranteed 4-hour response
- Annual capital planning report
Best For
Hospitals, data centers, and zero-downtime facilities
All programs are customized to your specific equipment inventory. Contact us for a tailored proposal.
What's Included in PM Visits?
Our technicians follow manufacturer-recommended procedures and document everything for your records.
Chillers
- Oil analysis & sampling
- Refrigerant charge check
- Condenser coil cleaning
- Control verification
- Vibration monitoring
Boilers
- Combustion analysis
- Safety device testing
- Low water cutoff test
- Burner inspection
- Water treatment review
Rooftop Units
- Filter replacement
- Belt inspection & tension
- Economizer operation
- Refrigerant check
- Electrical connections
Cooling Towers
- Basin cleaning
- Fill media inspection
- Belt/gear drive check
- Water treatment verify
- Winterization (seasonal)
Industries We Serve
Preventative maintenance requirements vary by industry. We tailor programs to your operational demands and compliance requirements.
Frequently Asked Questions
Common questions about preventative maintenance agreements.
How often should commercial HVAC equipment be serviced?
Most commercial HVAC equipment benefits from quarterly service visits—once before cooling season, once before heating season, and twice mid-season to verify performance and replace filters. Chillers typically receive more intensive seasonal service (spring startup and fall shutdown) plus monthly checks during operation. Boilers require annual or biennial inspections per Oklahoma code. We develop a schedule based on your specific equipment, operating hours, and manufacturer recommendations.
What if something breaks between PM visits?
PM agreement customers receive priority scheduling for service calls. Our Maintain and Protect tier customers move to the front of the dispatch queue for emergencies. With the Protect tier, repairs are included in your agreement—no separate invoice. For Maintain tier customers, you receive a 15% discount on parts and labor for any needed repairs. All customers have access to our 24/7 emergency dispatch line.
Can you maintain equipment from other contractors?
Yes. We provide maintenance on equipment regardless of who installed it. Before entering a PM agreement, we conduct an equipment audit to document current condition and identify any existing deficiencies. This baseline assessment protects both parties and helps us develop an appropriate service scope. If significant repairs are needed before equipment is PM-ready, we'll provide a separate quote for remediation.
How are PM agreements priced?
PM agreements are priced based on several factors: quantity and type of equipment, required service frequency, geographic location, and program tier. We conduct a site survey to inventory your equipment and then develop a customized proposal. Payment can be structured as a single annual payment (with discount) or equal monthly installments. This converts unpredictable repair costs into a fixed, budgetable expense.
Maintenance Resources & Case Studies
View All Resources
Autumn House (Oklahoma City) Emergency Rental Chiller and 45-Week Lead Time Replacement
When Autumn House faced a 45-week lead time for a new chiller, we pivoted to an emergency rental solution and custom piping modifications to keep their residents cool through the Oklahoma summer.

The Dow Building (Oklahoma City): Cooling Tower Consolidation and VFD Retrofit
We consolidated two aging, unreliable cooling towers into a single, high-efficiency unit with a Variable Frequency Drive (VFD), simplifying the building's mechanical plant and improving energy performance.

The Regency Apartments (Oklahoma City): Redwood Cooling Tower Replacement at Extreme Height
One of the few remaining Redwood cooling towers in Oklahoma City was replaced with a modern unit. This project required a high-altitude crane set and specialized demolition.
Protect Your Equipment Investment
A customized PM agreement costs a fraction of a single emergency repair. Request a proposal and we'll develop a program tailored to your facility. Commercial and industrial inquiries only.
Serving Oklahoma City, Tulsa, and Statewide Since 2008