Air Conditioning Services Across San Diego County
Reliable Cooling Solutions for Homes and Businesses
PROPER HVAC INC delivers complete air conditioning repair, installation, maintenance, and diagnostic services for properties across San Diego County. When high summer temperatures place heavy demands on your cooling equipment, our certified technicians ensure your systems maintain balanced airflow, accurate dehumidification, and optimal energy efficiency. From repairing minor electrical malfunctions to designing whole-building central cooling replacements, we handle every job with upfront pricing and verified mechanical craftsmanship.
Air Conditioning Solutions We Deliver
We service and install all major residential and light commercial cooling configurations, including split central AC, package units, and multi-zone ductless mini-splits.
Central AC System Installation
Precision load-matched central air conditioning replacements and new installations utilizing high-SEER2 equipment engineered to reduce utility costs.
Electrical Component Diagnostics
Testing and replacing failed contactors, hard-start kits, dual-run capacitors, disconnect switches, and wiring harnesses.
Refrigerant Leak Detection & Recharging
Pinpointing refrigerant leaks using electronic detection tools, brazing damaged copper joints, and recharging systems to strict factory specifications.
Blower Motor & Condenser Fan Service
Diagnosing seized fan bearings, replacing worn blower motors, and verifying correct static airflow across indoor evaporator coils.
Ductless Mini-Split Systems
Sizing, mounting, and servicing compact multi-zone ductless cooling units for room-by-room temperature customization.
Comprehensive Seasonal AC Tune-Ups
Cleaning condenser coils, clearing clogged condensate drain lines, checking amp draws, and replacing standard air filters.

Our Structured Cooling Service Protocol
Complete Mechanical Evaluation
We evaluate electrical components, measure refrigerant pressures, and check duct airflow throughout your property.
Transparent Scope and Pricing
We provide clear repair or replacement options with straightforward flat-rate pricing before beginning any work.
Manufacturer-Compliant Service
Our licensed technicians perform all repairs or equipment installations using certified parts and code-compliant procedures.
Full System Performance Run
We verify temperature splits across the evaporator coil, test thermostat calibration, and confirm balanced cooling delivery.
Why Choose PROPER HVAC INC
Experienced Technicians
Local Coverage
Licensed Contractor
Decades Experience
Honest Pricing
Scheduled Care
Reliable Solutions
Customer Satisfaction
Signs Your Cooling System Needs Attention
Warm or room-temperature air blowing from the supply vents.
Unusual squeaking, grinding, or buzzing noises during startup.
Persistent ice forming on copper line sets or the indoor coil.
Rapid cycling on and off before reaching the thermostat setpoint.
Water pooling around the indoor air handler or condensate pan.
Sharp, unexplained increases in your monthly electric utility bills.
Weak airflow coming from registers throughout the building.
Musty odors circulating whenever the cooling cycle turns on.

Should You Repair or Replace Your AC System?
If your air conditioning system is under ten years old and facing an isolated electrical breakdown or dirty sensor, targeted repair is generally the most cost-effective solution. However, if your unit relies on phased-out R-22 refrigerant, has a cracked compressor, or requires repeated annual repairs, replacing it with a high-efficiency central split system will deliver lower utility bills and reliable comfort.
Frequently Asked Questions
Why is my air conditioner running but blowing warm air?
Warm air often indicates a clogged air filter restricting airflow, a tripped electrical breaker shutting down the outdoor condenser, low refrigerant levels from a pinhole line leak, or a failing run capacitor that prevents the compressor from engaging.
How frequently should my cooling system receive maintenance?
We recommend professional cooling maintenance at least once a year in spring before warm weather sets in. Regular maintenance keeps coils clean, verifies refrigerant charges, and prevents unexpected mid-summer equipment failures.
How do I know if my AC system is properly sized for my space?
An oversized unit will cool rooms too quickly without removing humidity, leaving spaces feeling clammy, while an undersized unit runs continuously without reaching temperature. We perform precise load calculations to determine the exact tonnage needed for your building.
What is the benefit of enrolling in a service agreement for my AC?
Our Proper Service Agreement includes an annual cooling inspection and standard filter replacement, along with a 10% discount on repairs, a 5% discount on new installations, priority dispatching, and extended warranty protections.
Can I finance a replacement air conditioning system?
Yes, we provide flexible financing options through Wisetack, allowing you to pay for a modern high-efficiency cooling system with manageable monthly installments and zero prepayment penalties.
