Air Conditioning Services in Los Angeles, CA

When temperatures rise across Los Angeles, your air conditioning system becomes more than a luxury; it's a necessity. At JMS Air Conditioning and Heating, we provide expert AC services that keep your home or business cool, efficient, and comfortable all year long. Whether you're looking for emergency repairs, a full system upgrade, or routine maintenance, our skilled team is ready to deliver lasting results you can trust.

• 100% Satisfaction Guarantee
• Providing Quality Work Since 1993
• We Fix All Makes and Models

Los Angeles homes and commercial spaces demand high-performance cooling systems that meet both comfort and environmental standards. That’s why JMS Air Conditioning and Heating focuses on energy-smart upgrades, eco-friendly practices, and systems designed to withstand Southern California’s climate. Our company is grounded in strong values like accountability, respect, and transparency in every job we take on.

Stay comfortable in every season, book your air conditioning service with JMS Air Conditioning and Heating today.

Why Choose JMS Air Conditioning and Heating for Air Conditioning Services in LA

In a city known for sunshine and rising heat, reliable cooling isn’t optional, it’s essential. At JMS Air Conditioning and Heating, we combine technical expertise with customer-centered service to deliver AC solutions that perform efficiently and reliably.

Local Expertise with Decades of Experience

We’ve served the Los Angeles community since 1993, helping homeowners and businesses navigate the challenges of high heat, variable architecture, and aging infrastructure. Our technicians know what works and what doesn’t in LA’s diverse climate and building stock.

Service for Every Brand, System, and Property Type

Whether you have a ductless mini-split, central air system, or rooftop unit, we have the training and tools to diagnose, repair, or replace it quickly. Our warehouse and trucks are stocked with common parts for rapid service.

Satisfaction Guaranteed on Every Job

We take pride in getting the job done right the first time. Our 100% satisfaction guarantee means that if something doesn’t meet your expectations, we’ll return and resolve it free of charge.

Committed to Efficiency and Sustainability

From recommending high-SEER2 systems to offering green building upgrades, JMS Air Conditioning and Heating is committed to helping LA reduce its environmental footprint. We help you qualify for rebates and maximize energy savings with smart, responsible upgrades.

Customer-Focused, Value-Driven Service

We approach every service with integrity, respect, and a commitment to clear communication. Our quotes are transparent, our recommendations are honest, and our service is tailored to your needs, not our sales goals.

Full-Service Air Conditioning Support

We provide everything you need to stay cool in LA’s warm climate:

• Air Conditioning Installation and Replacement: We assess your home or building’s size, insulation, and cooling needs to design and install a system that ensures peak efficiency and comfort.
• AC Repairs for All Makes and Models: From strange noises and poor airflow to total breakdowns, we diagnose and fix problems quickly using high-quality parts and precise techniques.
• Preventative Maintenance and Tune-Ups: Regular servicing extends your AC’s lifespan, boosts efficiency, and reduces the likelihood of costly repairs.
• Thermostat Upgrades and Smart Controls: We install smart thermostats that give you better temperature control, lower energy bills, and the convenience of remote access.
• Energy-Efficient Equipment Consultation: Our team helps you choose eco-friendly systems that meet your performance goals while minimizing energy use and carbon emissions.
• Indoor Air Quality Enhancements: We integrate advanced filtration, purification, and humidity control systems to improve indoor air comfort and health.

Emergency Cooling Repairs When You Need Them Most

When your AC stops working in a heatwave, you can count on our emergency response team to restore your comfort fast. We offer responsive scheduling and skilled diagnostics to minimize downtime.

Residential and Light Commercial Expertise

Whether you live in a bungalow, a high-rise, or operate a small business, JMS Air Conditioning and Heating has the expertise to provide AC solutions that match your property’s scale, usage, and layout.

Call JMS Air Conditioning and Heating Today for Air Conditioning Service That Keeps LA Cool.

Common AC Problems in Los Angeles and How to Prevent Them

Living in Los Angeles means enjoying sunshine nearly year-round but it also means your air conditioning system works overtime to maintain indoor comfort. High usage combined with variable air quality and older construction in many homes can contribute to a wide range of AC issues. At JMS Air Conditioning and Heating, we’ve helped thousands of LA homeowners and businesses diagnose, fix, and prevent these problems efficiently.

Most Frequent Air Conditioning Problems in LA

• Inconsistent Cooling Across Rooms: Uneven temperatures are often caused by duct leaks, blocked vents, or undersized systems in older homes with add-ons or poor airflow design.
• High Utility Bills Despite Normal Use: Dirty coils, outdated units, or improper sizing can force your AC to work harder than necessary, driving up energy consumption.
• AC Running Constantly or Short Cycling: These problems typically indicate a thermostat issue, refrigerant imbalance, or improperly matched system capacity.
• Unpleasant Odors or Musty Smells: Mold growth in ductwork or dirty evaporator coils are common in LA homes where humidity and dust interact.
• Warm Air from the Vents: If your AC blows air that isn’t cool, it may be due to a failed compressor, refrigerant leak, or electrical malfunction.
• Noisy Operation: Banging, clicking, or buzzing noises often point to loose components, fan motor issues, or foreign debris in the unit.

If you notice any of these symptoms, don’t wait to schedule a diagnostic visit with JMS Air Conditioning and Heating to prevent further damage.

How Your Cooling System Works and What Keeps It Efficient

Knowing the major systems behind your home’s cooling helps you better understand the importance of maintenance and upgrades. Each component plays a critical role in delivering consistent, efficient comfort.

Key Systems That Affect AC Performance

• Evaporator Coil: This indoor coil absorbs heat from the air. A dirty or frozen coil disrupts cooling efficiency and often leads to system shutdowns.
• Condenser Coil: Located outdoors, it releases absorbed heat. Debris buildup or blocked airflow around this unit lowers cooling power and raises energy costs.
• Compressor: Acts as the pump for your refrigerant. It’s one of the most expensive components to replace, making early detection of issues critical.
• Refrigerant Lines: Copper tubing carries refrigerant between coils. Leaks here reduce cooling power and can damage the compressor over time.
• Blower Motor and Air Handler: These push cooled air into your ductwork. A failing motor will lower airflow and system responsiveness.
• Ductwork and Registers: Responsible for distributing air throughout your space. Leaky or improperly designed ducts can cause uneven temperatures and energy waste.
• Thermostat and Controls: The brain of your system, it regulates temperature and scheduling. Upgrading to smart thermostats boosts comfort and efficiency.

Enhancements That Improve Comfort and Efficiency

• High-Efficiency SEER2 Units: Modern systems reduce environmental impact and monthly energy costs while delivering faster cooling.
• Zoning Systems: Ideal for multi-story homes or mixed-use spaces, zoning allows room-specific temperature control to avoid overcooling unused areas.
• Smart Thermostat Integration: Helps you control cooling remotely and set schedules that adapt to your daily routine.
• Air Filtration and Purification: In LA’s smog-prone environment, adding HEPA filters or UV systems helps reduce airborne pollutants and allergens.
• Insulation and Air Sealing Improvements: Keeping cool air in and hot air out starts with proper insulation around ducts, attics, and exterior walls.

Optimize your cooling system’s performance schedule a tune-up or energy audit with JMS Air Conditioning and Heating today.

From compressors to clean air JMS Air Conditioning and Heating handles every part of your AC system with care and precision.

Comprehensive and Customized Air Conditioning Services by JMS Air Conditioning and Heating in Los Angeles

When it comes to staying cool in LA’s ever-warming climate, a one-size-fits-all AC solution just won’t do. At JMS Air Conditioning and Heating, we offer a comprehensive suite of air conditioning services tailored to meet the needs of every homeowner and small business in the city. Whether you need a brand-new installation or a quick repair, our team is trained to handle it with precision, care, and integrity.

New AC Installation and System Design

When to Consider: If your current system is over 10–15 years old, requires frequent repairs, or fails to cool your home evenly, it may be time for a new installation. Homes undergoing remodeling or additions also benefit from reevaluating system capacity.

Proper sizing and system selection ensure you get the best efficiency and comfort. Modern high-SEER2 equipment saves on long-term energy costs and performs more quietly.

What’s Included:

• Home Evaluation and Load Calculation: We perform a Manual J calculation to ensure your new system is perfectly matched to your home’s square footage, insulation, and solar gain.
• System Recommendations: We guide you through central air, heat pump, and ductless options based on your needs and budget.
• High-SEER2 Equipment Selection: We recommend models that comply with California’s latest energy standards to maximize savings.
• Professional Installation: Our certified technicians handle every step, including unit placement, refrigerant charging, and system balancing.
• Performance Verification: Post-installation testing ensures airflow, temperature control, and efficiency meet expectations.

Request a custom AC installation quote from JMS Air Conditioning and Heating today.

AC Repair Services

When to Consider: If your AC is making odd noises, blowing warm air, leaking water, or not turning on, it’s time to call for repair. Early action often prevents more expensive damage.

Quick repairs minimize downtime, preserve your system’s lifespan, and keep you comfortable during extreme weather events.

What’s Included:

• Comprehensive System Diagnosis: We use advanced tools and techniques to pinpoint the exact issue, from electrical faults to refrigerant imbalances.
• Detailed Problem Explanation: Our technicians clearly explain the issue and all repair options before starting work.
• Targeted Component Repair: We service compressors, fans, motors, coils, thermostats, contactors, capacitors, and more.
• Functionality Testing: Post-repair checks confirm the system runs safely and efficiently.
• Service Guarantee: Our work is backed by a full satisfaction and parts warranty.

Don’t wait to schedule expert AC repair with JMS Air Conditioning and Heating.

Preventative Maintenance and Seasonal Tune-Ups

When to Consider: Before peak summer or after heavy system use, schedule a tune-up. Regular maintenance extends the life of your AC and helps it perform better throughout the year.

Well-maintained systems consume less energy, suffer fewer breakdowns, and offer improved indoor air quality.

What’s Included:

• Multi-Point Inspection: Includes checks on refrigerant levels, electrical connections, fan motor performance, and capacitor health.
• Cleaning Services: Coil cleaning, filter replacement, and drain line flushing to ensure airflow and prevent mold.
• System Optimization: We calibrate thermostats and adjust system settings to enhance energy efficiency.
• Seasonal Performance Report: We document current system condition and provide recommendations for improvement or upgrades.

Stay ahead of the heat book seasonal maintenance with JMS Air Conditioning and Heating.

Smart Thermostat and Control System Installation

When to Consider: If you want better control over your home’s cooling schedule or are upgrading your HVAC system, a smart thermostat can significantly improve efficiency.

Programmable and Wi-Fi-connected thermostats help reduce energy costs and let you manage your home comfort remotely.

What’s Included:

• Compatibility Check: We confirm the thermostat will integrate seamlessly with your current HVAC equipment.
• Professional Installation: Precise wiring and mounting ensure long-term reliability and safe operation.
• Device Configuration: We program optimal temperature schedules and connect the system to your preferred smart home hub.
• User Training: Our team walks you through using your app, adjusting settings, and troubleshooting tips.

Enhance your AC efficiency and install a smart thermostat with JMS Air Conditioning and Heating today.

Ductwork Services and Airflow Optimization

When to Consider: If you notice uneven cooling, high energy bills, or whistling noises from vents, your ductwork may need attention.

Leaky or undersized ducts reduce system efficiency and airflow, making your AC work harder than it should.

What’s Included:

• Detailed Duct Inspection: We assess for leaks, kinks, disconnections, and insulation issues using thermal imaging and pressure tests.
• Sealing and Repair: We apply mastic or foil tape to seal joints and reattach loose ducts for improved airflow.
• Redesign and Rerouting: If needed, we modify duct layouts to ensure even air distribution and reduce noise.
• Airflow Balancing: We fine-tune registers and dampers to equalize temperature across all rooms.

Improve comfort in every room and request a duct evaluation from JMS Air Conditioning and Heating.

Indoor Air Quality (IAQ) Enhancements

When to Consider: If you suffer from allergies, respiratory discomfort, or poor indoor air clarity, adding IAQ products can make a big difference.

LA’s air can contain pollutants and allergens. Improving filtration and purification helps create a healthier indoor space.

What’s Included:

• Air Filtration Upgrades: We install HEPA filters, media cabinets, and electrostatic air cleaners to trap fine particles.
• Purification Systems: UV lights and ionizers eliminate bacteria, mold spores, and odors from your ductwork and living space.
• Humidity Control: Whole-home humidifiers or dehumidifiers keep indoor RH in the optimal range for comfort and health.
• Maintenance and Monitoring: We teach you how to change filters, check indicators, and maintain IAQ products effectively.

Breathe easier ask JMS Air Conditioning and Heating about IAQ upgrades today.