Commercial Air Conditioning Repair, Maintenance & Installation

Unplanned downtime in your cooling systems directly impacts your bottom line, employee productivity and tenant satisfaction. Precision Mechanical Solutions, Inc. (PMSI) delivers comprehensive commercial air conditioning services across the Greater Central Valley. Operating from our central facility in Fresno, our union-certified technicians bring more than 160 years of combined experience to keep your mission-critical environment fully operational 24/7.

Whether you manage a healthcare facility, warehouse, restaurant, retail center, office complex or municipal building, PMSI provides direct, highly technical HVACR solutions tailored to enterprise and industrial demands. We understand that commercial systems require specialized diagnostic capabilities, heavy-duty equipment knowledge and an uncompromising commitment to quality workmanship.

Our technicians service all major commercial brands and complex equipment configurations. We perform thorough, accurate diagnostics to resolve the root cause of mechanical failure rather than applying temporary fixes. Common issues we resolve include:

• Compressor Failures and Refrigerant Leaks — Identifying circuit issues, repairing leaks and recharging systems to exact manufacturer standards.
• Airflow and Pressure Imbalances — Repairing failing blower motors, replacing compromised belts and adjusting dampers to restore proper air distribution.
• Electrical and Control Malfunctions — Diagnosing blown fuses, faulty contactors, failing capacitors, and integrated building automation communication errors.
• Evaporator and Condenser Coil Issues — Clearing severe scale, debris or frozen coils that restrict heat transfer and strain the system.

Every commercial air conditioning repair call is handled with old-school integrity and precision, ensuring your facility returns to full operational capacity with minimal disruption.

Proactive Commercial AC Maintenance & Planned Maintenance Programs

Emergency service calls and sudden capital outlays are drastically reduced through structured, proactive care. PMSI offers specialized Planned Maintenance programs engineered to protect your infrastructure investment, optimize energy efficiency and prolong total equipment lifespans.

Unlike basic service contracts that only cover superficial checks, our Planned Maintenance agreements offer true operational security:

• Guaranteed Scheduled Care — Routine scheduled visits include the replacement of standard maintainable parts such as filters and belts, alongside comprehensive system calibrations, safety checks and electrical tightening.
• Repair and Labor Coverage — Our program covers the labor, travel and expenses required to repair or replace maintainable parts and major components that fail due to normal wear and tear over the life of the agreement.
• Predictable Budgeting — Eliminate unexpected repair expenses and simplify facility forecasting through guaranteed commercial AC maintenance agreements tailored to your facility’s exact layout.

By taking a systematic approach to maintenance, we help facility managers avoid catastrophic system failures during peak cooling seasons.

Commercial AC Installation, Retrofit And Equipment Replacement

When legacy equipment reaches the end of its functional life or becomes too inefficient to maintain, PMSI manages complete commercial AC installation and unit replacement projects. Replacing commercial cooling infrastructure requires detailed engineering considerations, proper load calculations and precise execution to avoid structural and operational bottlenecks.

Our installation process is built around clarity and technical excellence:

• Free Replacement Estimates — We provide free estimates on all equipment replacements, helping facility directors evaluate performance upgrades and energy efficiency paybacks.
• Tailored System Specification — We evaluate your facility’s physical footprint, square footage, occupancy loads, indoor air quality requirements and existing building automation systems to recommend the exact system size and type.
• Comprehensive Warranty Backing — Every new unit replacement is backed by our 90-day parts and labor warranty and a 1-year conditional labor warranty on new installations, in addition to any manufacturer warranty.
• Full-Spectrum Capability — We handle installations for packaged rooftop units, split systems, ductless mini-splits, swamp coolers and specialized industrial air handlers.

Serving Commercial And Industrial Clients Across Central California

PMSI proudly serves businesses, property managers, school districts and government agencies throughout Fresno County and beyond. From primary commercial centers in Fresno, Visalia, Tulare and Madera to industrial facilities across the surrounding regions, our team delivers reliable, union-certified commercial air conditioning repair, maintenance and installation engineered for the demanding Central Valley climate.

When you partner with PMSI, you receive honest communication, expert workmanship, and a dedicated team that treats your facility’s uptime as top priority.