HVAC Service in San Marino
Keep your San Marino home comfortable through every season with reliable HVAC service from Multi Air Service LLC. Our local team offers honest recommendations and emergency service without commission-based sales pressure. Call today for dependable heating and cooling service in San Marino.
Choose San Marino's Top-Rated HVAC Company
In San Marino, California, summer temperatures can easily rise to the mid-to-high 80s from June through September. Locals cool off wandering the shaded paths of the Huntington Library, Art Museum, and Botanical Gardens, or catch a breeze on an evening walk through Lacy Park. Your home should offer that same relief.
That's where we come in. Multi Air provides reliable HVAC service for homeowners throughout San Marino. Our technicians understand the demands that high summer temperatures can place on your system. We offer emergency service when you need help keeping your home comfortable.
Why San Marino Homeowners Choose Us
Multi Air is a family-owned HVAC and mechanical contractor based in Pasadena. The owner, Ricardo Ortega, founded the company after years of experience in refrigeration and mechanical work. Since the start, our company has been focused on quality workmanship and fair treatment. Ricardo's hands-on leadership keeps those values at the heart of every repair, replacement, or installation.
San Marino homeowners who visit the Huntington Library know their neighborhood well, and so do we. Our technicians understand the mix of historic and newer homes throughout the San Marino service area and tailor every recommendation accordingly.
Here's why families throughout San Marino choose us for heating and cooling services:
- Family-Owned and Operated: We're locally owned and family-operated. Our owner works directly in the field and remains personally involved in every job, which helps maintain consistent quality control and accountability.
- Locally Focused HVAC Expertise: San Marino's mix of historic and newer homes creates different HVAC considerations. Older properties in the Old Mill District may need airflow balancing. Newer homes often benefit from energy-efficient system design. We adjust our approach to fit each home.
- Honest Service with Strong Guarantees: We operate on a non-commissioned model, so our recommendations reflect what your system actually needs. Every job is backed by strong service guarantees.
- Fast, Responsive Service: Our team responds as quickly as possible and arrives ready to evaluate and resolve your HVAC issue. In many cases, we can get to you the day that you call.
- Skilled, Experienced Technicians: Every technician completes thorough training before working on residential systems. They have the kind of expertise you want when your comfort is on the line.
- Award-Winning Reputation: We're recognized as a top HVAC contractor in the Pasadena area. Customers have also left numerous positive reviews on Google, Yelp, and Angi. These reviews mention our professionalism and workmanship.
Air Conditioning Services
San Marino doesn't get a break from the heat once July rolls around, with afternoons routinely sitting in the 80s straight through August. An overworked or outdated cooling system can leave your house feeling worse than the outdoors. Multi Air provides air conditioning service in San Marino for homeowners dealing with cooling problems.
Air Conditioner Repair
A warm breeze from the vents when you're expecting cold air could be caused by several problems, including a refrigerant leak, a worn capacitor, or a failing compressor. We inspect your system to identify the exact cause of the problem.
Get AC Repair TodayAC Replacement
Older air conditioners tend to run less efficiently, and San Marino's summer heat can drive energy bills from SCE even higher. We guide homeowners through choosing a properly sized San Marino AC replacement.
Book AC ReplacementAC Maintenance
A yearly tune-up goes a long way toward preventing a breakdown mid-summer. Our AC maintenance visits in San Marino cover coil cleaning, airflow checks, and a full inspection before the heat sets in.
Get AC MaintenanceDuctless Mini-Splits
Additions, converted garages, and homes without ductwork all benefit from a ductless setup. We install new ductless systems and handle ductless HVAC repair throughout San Marino.
Go DuctlessHeating Services in San Marino
Cold snaps aren't the norm here, so heating equipment in San Marino works far less than it does in colder climates. But overnight temperatures in San Marino can still drop into the 30s from December through January. Those colder stretches can expose inefficiencies in an aging furnace.
Furnace Repair
Furnaces and heaters often fail without warning. Our team diagnoses your heating issue quickly and explains the fix before starting work. From pilot light problems to blower motor failures, our team of San Marino HVAC contractors is always just a call away.
Get Furnace RepairFurnace Replacement
Older furnaces can struggle to keep up, even in a mildly cold climate like San Marino's. Frequent repairs and rising energy bills are just two signs it's time for a new system. We help homeowners choose a furnace sized correctly for their home.
Book Furnace ReplacementFurnace Maintenance
Routine maintenance catches small issues before they turn into breakdowns. Our seasonal tune-ups include inspections, cleaning, and safety checks on every furnace we service. Regular maintenance also helps your heater run efficiently through the cooler months.
Book Furnace MaintenanceHeat Pump Service
Heat pumps handle both heating and cooling in one system, making them a smart fit for San Marino's mild climate. Multi Air provides a variety of heat pump services in San Marino.
Book Your Heat Pump ServiceHeat Pump Repair
A heat pump that struggles to heat or cool may have an airflow, electrical, refrigerant, or component problem. We inspect the system to identify the cause and recommend the appropriate repair.
Get Heat Pump RepairHeat Pump Replacement
An aging heat pump can become less reliable or efficient over time. We help homeowners evaluate their existing equipment and choose a properly sized replacement.
Get Heat Pump ReplacementHeat Pump Conversion
Thinking about changing your home's heating and cooling setup? We can evaluate your existing equipment and discuss whether a heat pump conversion fits your home.
Explore Heat Pump ConversionHeat Pump Maintenance
Routine heat pump maintenance helps keep the system heating and cooling efficiently throughout the year. We inspect key components, check system operation, and look for developing issues before they lead to larger problems.
Get Heat Pump MaintenanceIndoor Air Quality Services
Dust and pollen travel with San Marino's dry summer air. Once a home closes up for winter, indoor pollutants linger inside. Multi Air offers the following indoor air quality solutions. We can also provide tips that make your air cleaner.
Get Your Air TestedAir Purification Systems
Whole-home purifiers filter particles out of the air as it circulates through your HVAC system, cutting down on dust, allergens, and other irritants room by room.
Schedule Air PurificationCommercial Kitchen Ventilation
Grease, heat, and smoke accumulate quickly in a commercial kitchen without proper ventilation in place. We install and maintain systems that move air safely and keep you code-compliant.
Get Kitchen VentilationDuctwork Service
Debris builds up inside ducts over the years, restricting airflow and pushing contaminants through your home. We inspect and clean ductwork so air moves the way it's supposed to.
Get Ductwork InspectedSigns It's Time to Call Multi Air
Most HVAC systems make a cry for help before fully breaking down. Spotting these issues early can mean a smaller repair bill and minimal disruption to your comfort:
- Warm Air From the Vents: Your AC runs, but the air coming out isn't cold. San Marino's summer heat can make this problem especially noticeable. Common causes include a refrigerant leak, a failing compressor, or a dirty coil.
- A Furnace That Won't Warm the House: The system kicks on, but the temperature never climbs. This can become noticeable during San Marino's colder winter nights. Ignition issues, a bad thermostat, or a clogged filter often cause this.
- Odd Sounds During Operation: Banging, rattling, or grinding noises usually mean a component inside the unit needs attention before it gives out entirely. This can be particularly important to watch out for in older San Marino homes with aging HVAC equipment that may be reaching the end of its lifespan.
- Inconsistent Temperatures from Room to Room: One room feels fine while another doesn't. This may trace back to duct issues or poor airflow distribution.
- An Energy Bill That Jumps for No Reason: If your usage hasn't changed but your bill has, your system is likely working harder than it should to keep up. We can audit your setup and see if your heating and cooling equipment is to blame.
- A Unit That Never Shuts Off: Constant running, or a system that won't turn off at all, often points to a thermostat problem or a struggling unit.
- Barely-There Airflow: Weak airflow from the vents often comes down to blocked ducts, a failing blower motor, or a filter that needs replacing.
What to Expect From Our HVAC Visit
A good HVAC visit should leave you with answers, not more questions. Here's what you can expect from our team from the moment we arrive until the job is finished:
- Examination: Every visit starts with a full evaluation of your system, not a quick glance. We check refrigerant levels, inspect electrical connections, test airflow, and look for the small warning signs that get missed when a technician is rushing to the next job.
- Explanation: Then we walk you through exactly what we found, in plain language, standing right at your HVAC unit so you can see what we're talking about. You'll know what's happening, why it matters, and what the recommended work will cost before we start. That kind of straight talk is part of why homeowners consider us a top-rated HVAC company in San Marino.
- Getting It Done: Once you approve the plan, we get to work using quality parts and proper technique, whether that's a repair, a tune-up, or a full installation.
- Testing and Wrap-Up: Before we pack up, we run the system to confirm it's operating the way it should, and we'll walk you through any care tips specific to your equipment.
Consider Our Maintenance Plan
HVAC problems are easier to prevent than fix. Our maintenance plan lets San Marino homeowners fend off breakdowns and get more value out of their HVAC systems.
Maintenance plan benefits include:
- Longer Equipment Lifespan: Consistent upkeep keeps strain off your system, so components last longer before they need replacing.
- Lower Monthly Energy Costs: A well-tuned system doesn't have to work as hard, which means less wasted energy and a smaller utility bill.
- Priority Scheduling: Plan members move to the front of the line, with same-day appointments available whenever possible.
- Discounted Repairs: Members pay less when a repair does come up, on top of the savings from fewer breakdowns in the first place.
- Round-the-Clock Coverage: HVAC issues don't check the clock, so plan members get emergency access built in.
Proud to Serve All of San Marino
Multi Air provides residential HVAC service throughout San Marino and the surrounding communities. Our team works with homeowners in different types of properties throughout the area. Whether you live near San Marino High School, in the Crowell neighborhood, or around Huntington Drive, you can contact us when your heating or cooling system needs attention.
Reliable HVAC Service in San Marino
When your home's heating or cooling system needs attention, Multi Air is ready to help. We provide AC repair, furnace repair, heat pump service, and indoor air quality solutions in San Marino.
Our local reputation is supported by customer reviews on Google and Yelp. We focus on clear communication and practical recommendations for every service visit. Whether your AC is not cooling or your furnace is not heating, our team can evaluate the system and explain your options. Call Multi Air today to schedule HVAC service in San Marino.
Frequently Asked Questions
What should I check before calling an HVAC company?
Check your thermostat settings, air filter, and circuit breaker first. If the problem continues, our team can diagnose the issue on-site.
How long will it take you to fix my system?
The time depends on the type of repair and the condition of your equipment. Many routine repairs can be completed within one to two hours. More complex repairs and replacements may take longer. We'll explain the expected timeline before work begins.
How much do San Marino HVAC services cost?
Diagnostic visits start with a $95 dispatch fee. Tune-ups typically run up to $150, most repairs fall between $150 and $600, and full replacements range from $6,500 to $15,000. We provide upfront pricing before any work begins, with no hidden fees.
How often should I schedule HVAC maintenance?
Most systems benefit from a tune-up twice a year, once before summer and once before winter, to catch issues early.
What parts of San Marino do you service?
We serve homeowners throughout San Marino, including neighborhoods near San Marino High School, the Crowell Public Library, and Huntington Drive.
Is it normal for my HVAC unit to make clicking or banging sounds?
No. Clicking can be normal during startup, but banging or grinding usually signals a mechanical issue that needs attention.
How do I know if I should repair or replace my unit?
If you are scheduling San Marino central air repair more than once a season, or noticing rising energy bills, it's a strong sign to consider replacement.
Why is my HVAC system running but not heating or cooling?
An HVAC system that runs without heating or cooling properly may have an airflow restriction, a thermostat issue, a refrigerant problem, or a failing component. A clogged filter can also limit airflow and affect performance. Our technicians can inspect the system, identify the cause, and recommend the appropriate repair.
Recent Jobs and Reviews in San Marino, CA
San Marino, CA at a glance
Multi Air Service LLC has completed 10 jobs in San Marino, CA between June 2026 and September 2026.
The most recent job was on September 10, 2026.
Job Locations and Reviews
Service call. Zone controls. Goodman. Perform air balance issues.
Tech call. Perform zone controls no cooling. Lennox dual zone custom.
San Marino CA. No cool. Lennox split system. High Efficiency R410-A. Refrigerant charge.
San Marino CA. Indoor out door unit leaks as I detection. Lennox split system.
San Marino CA. R410-A. Check for leaks indoor coil.
San Marino CA. No cool. Lennox split system R410-A. High efficiency system. Circuit board malfunctioning. Warranty issue.
San Marino CA. Replace, update with new line set insulation. Lennox split system.
Service call. Condensation line water dripping drywall ceiling.
San Marino CA. Service call no cool. Perform check list. Lennox split system high efficiency. Poor quality installation, poor ducting, poor line set condensation leak.
San Marino CA. Service call. No cool. Check components. Short electrical wiring. Dirty filters.