AC Repair
Warm air, a humming outdoor unit or a tripped breaker: we find the failed part and fix most AC problems in one visit.
Learn moreHeating & AC
Heating, cooling and air services for Pasadena homes and businesses
This page lists every heating and cooling service our technicians handle across Pasadena and the San Gabriel Valley. The groups follow how problems show up at home: the AC stopped cooling, the heat will not come on, the ducts or attic are losing air, the indoor air feels stale or smoky, or the whole system needs a decision about replacement.
- 41 services
- Homes and businesses
- Answering 24/7
Each service page explains what usually fails, what the technician checks on the visit, typical price ranges for Pasadena, and how local heat, Santa Ana dust and older housing affect the work. If you are not sure which service fits, call (626) 879-0711 and describe what you are seeing. We will figure it out with you.
Typical prices for every job are collected in our HVAC price guide, and the AC size estimator gives a rough cooling size before a load calculation.
01
Cooling
Air conditioner repair, installation, replacement and tune-ups, plus the specific failures that hit hardest in Pasadena summers: refrigerant leaks, compressors, evaporator coils and indoor water leaks.
AC Installation
First-time central air for older Pasadena homes, sized by a room-by-room load calculation and fitted to your attic and floor plan.
Learn moreAC Replacement
Swap a worn-out air conditioner for a correctly sized SEER2 system, with duct testing and permit work handled in one job.
Learn moreAC Tune-Up & Maintenance
A spring tune-up that cleans the coils, tests the capacitor and contactor, clears the drain and checks the charge before summer hits.
Learn moreRefrigerant Leak Repair
We trace refrigerant leaks with electronic detectors, bubble tests and nitrogen pressure, then repair and recharge by weight.
Learn moreAC Compressor Replacement
We test windings, start components and pressures to confirm a dead compressor, then replace it and protect the new one from the same fate.
Learn moreEvaporator Coil Replacement
Replace a corroded or leaking indoor AC coil with a matched one, a fresh drain pan and a proper vacuum and recharge.
Learn moreAC Water Leak & Drain Line Repair
Water around the furnace or a stain on the ceiling: we clear the drain, fix the trap, replace pans and install float switches.
Learn more02
Heating
Gas furnace repair, installation, replacement and maintenance, along with the wall furnaces, floor furnaces and boilers still heating many Craftsman, Spanish Revival and postwar homes.
Furnace Repair
No heat on a cold night? We trace the ignition sequence, find the failed part and fix most furnaces in a single visit.
Learn moreFurnace Installation
New gas furnace installs sized by load calculation, with gas piping, venting, ducts and the city permit handled by our crew.
Learn moreFurnace Replacement
An old furnace swapped for a right-sized new one in the same attic, closet or garage, with venting, ducts and permit handled.
Learn moreFurnace Tune-Up & Maintenance
A fall furnace tune-up that cleans the burners and flame sensor, tests every safety and checks for carbon monoxide before winter.
Learn moreWall Furnace Repair
Pilot lights, thermocouples, gas valves and fans on gravity and fan-type wall furnaces, with a venting and CO check every visit.
Learn moreFloor Furnace Replacement
Old floor grate heaters removed and replaced with a new floor furnace, a wall furnace, a ducted system or a ductless heat pump.
Learn moreBoiler & Radiant Heat Repair
Hot water boilers, radiators and radiant floors repaired, from circulator pumps and zone valves to pressure and air problems.
Learn more03
Heat Pumps & Ductless
Heat pump repair, installation and maintenance, gas to heat pump conversions, ductless mini-splits for rooms that never cooled well, and heating and cooling for new backyard ADUs.
Heat Pump Repair
Diagnosis and repair for heat pumps that will not heat, will not cool, ice up, trip breakers or show inverter fault codes.
Learn moreHeat Pump Installation
New ducted and inverter heat pumps sized to your Pasadena home, with permits, line sets, electrical and duct checks included in the quote.
Learn moreHeat Pump Maintenance
A two-mode tune-up for Pasadena heat pumps: coil cleaning, electrical tests, defrost checks, drain flushing and a clear report on condition.
Learn moreGas Furnace to Heat Pump Conversion
Replace a gas furnace with an electric heat pump, starting with a panel load check so the switch works without surprises.
Learn moreDuctless Mini-Split Installation
Ductless heat pumps for Craftsman bungalows, additions, converted garages and hot upstairs rooms, with head styles chosen room by room.
Learn moreDuctless Mini-Split Repair
Repairs for dripping indoor heads, blinking error codes, dead zones, noisy fans and mini-splits that blow air but do not cool.
Learn moreADU Heating & Cooling
Heat pump systems for backyard ADUs, garage conversions and junior units, sized correctly for small spaces and built to pass inspection.
Learn more04
Ducts & Attic
Duct repair, replacement, cleaning and sealing for hot Pasadena attics and crawlspaces, plus whole house fans and attic insulation that cut how hard the AC has to work.
Duct Repair
We find crushed, torn and disconnected attic ducts, fix them with mastic and new flex, and check airflow before we leave.
Learn moreDuctwork Replacement
New attic ductwork sized for your rooms and equipment, sealed with mastic and leak tested before we call the job done.
Learn moreAir Duct Cleaning
Camera inspection first, then negative-pressure HEPA cleaning of supply, return, blower and coil when your ducts actually need it.
Learn moreDuct Sealing & Leak Testing
We measure duct leakage with a calibrated fan, seal joints with mastic, and test again so you see the actual improvement.
Learn moreWhole House Fan Installation
Quiet, insulated whole house fans that pull cool evening air through your home and flush the hot attic, with venting sized right.
Learn moreAttic Insulation
Air sealing first, then blown-in insulation to the right depth, so your ceilings stop radiating attic heat into the rooms.
Learn more05
Indoor Air
Indoor air quality work for dust, Santa Ana days and wildfire smoke: whole home air purifiers, UV air sanitizers and whole home humidifiers for dry winter air.
Indoor Air Quality Testing
We measure particles, humidity, CO2, VOCs and carbon monoxide in your home, find the sources and explain what would actually help.
Learn moreWhole-Home Air Purifiers
Media filter cabinets and electronic air cleaners built into your HVAC system, sized so they clean the air without choking airflow.
Learn moreUV Air Sanitizers
UV lamps mounted at the AC coil to keep the coil and drain pan surfaces cleaner, installed safely with sealed, interlocked access.
Learn moreWhole-Home Humidifiers
Bypass, fan-powered and steam humidifiers on your furnace or air handler, with a control that keeps humidity in a comfortable range.
Learn more06
Systems & Commercial
Smart thermostats, zoning, full system replacement, inspections, maintenance plans, 24/7 emergency repair, and commercial service including rooftop units for shops, offices and restaurants.
Smart Thermostat Installation
Smart thermostats installed with a proper C-wire and the right heat pump or two-stage settings, tested in every mode.
Learn moreHVAC Zoning Systems
Motorized dampers and a zone panel so upstairs bedrooms, downstairs rooms and additions each get their own thermostat.
Learn moreFull HVAC System Replacement
Furnace, coil and condenser or a heat pump replaced together as a matched system, with duct testing and the city permit handled.
Learn moreHVAC Inspection
A detailed check of the furnace, AC, ducts and venting with a plain written report, useful before buying an older Pasadena home.
Learn moreHVAC Maintenance Plans
Two visits a year, cooling in spring and heating in fall, so small problems get caught before a heat wave or a cold night.
Learn more24/7 Emergency HVAC Repair
Night, weekend and holiday repairs for a dead AC in a heat wave or a furnace that quits on a cold night, any hour.
Learn moreCommercial HVAC Repair
Repairs for restaurants, offices, clinics and retail spaces, scheduled around business hours so your doors stay open.
Learn moreCommercial HVAC Maintenance
Scheduled visits, filter programs and belt checks for rooftop units and split systems in restaurants, offices and retail spaces.
Learn moreRooftop & Package Unit Repair
Repairs on rooftop and ground-mounted package units: belts, contactors, economizers, compressors and gas heat sections.
Learn moreQuestions
Choosing the right service
Start with AC repair. The technician tests the capacitor, contactor, refrigerant charge, coils, blower and drain, then tells you the actual cause. If the system turns out to be very old, leaking refrigerant every year or badly sized, the conversation moves to replacement, and you get both options priced side by side before deciding anything.
In Pasadena's mild winters a heat pump handles heating well and gives you cooling from the same equipment, which makes it a strong choice when the AC and furnace are both aging. A gas furnace can still make sense when only the heating side needs replacing and the AC is young. We compare running costs and rebates for your home before you choose.
Often, yes. Many Pasadena attics hold ducts that are decades old, undersized or leaking at the joints. California's Title 24 rules can require duct leakage testing when an AC or furnace is replaced, and failing ducts may need sealing or replacement to pass. The technician inspects the ducts before quoting so the full cost is clear upfront.
Need heat or cooling back today?
Call our Pasadena line any hour. A person answers, asks a few questions about the system, and gives you an arrival window.
(626) 879-0711Answering 24 hours, 7 days