The short answer
AllPro HVAC Services repairs furnaces, heat pumps, and wall and floor heaters in Pasadena homes, including ZIP codes 91101 through 91107 and 91125, with 24/7 emergency service available. We diagnose the cause first, explain your options, and give honest guidance when a repair no longer makes sense.
Pasadena winters are mild, but the inland location means cold nights in December and January are common enough that a heater that won't start becomes a real problem. AllPro HVAC Services repairs furnaces, heat pumps, and wall and floor heaters in homes across Pasadena, about 7 miles northeast of our Los Angeles base. We focus on finding the actual cause of the problem, explaining it in plain terms, and fixing it so your system runs safely through the season. If your heat goes out at night or over a weekend, we offer 24/7 emergency service.
Heating Problems We Fix in Pasadena Homes
Because many Pasadena heaters sit unused for most of the year, problems often show up the first time the system is switched on in fall. Dust settles on burners, igniters weaken, and filters that were fine in spring become clogged. A heater that worked last winter can still fail on the first cold night.
These are the issues we see most often:
- Furnace won't ignite, or lights and then shuts off after a few seconds
- Burning dust smell that doesn't fade after the first few minutes of running
- Weak airflow or rooms that stay cold while others heat normally
- Heat pump blowing cool air in heating mode or running nonstop
- Thermostat that doesn't call for heat or reads the wrong temperature
- Pilot light or flame sensor problems on older gas furnaces and wall heaters
- Loud banging, squealing, or rattling from the blower or burners
- Short cycling, where the system turns on and off repeatedly
How a Heating Repair Visit Works
We start by asking what you've noticed: when the problem began, what the system sounds or smells like, and whether anything changed recently, such as a new thermostat or filter. Then we check the system step by step, including the thermostat, power and gas supply, ignition, flame sensor, safety switches, blower, filter, and venting.
Once we find the cause, we explain what failed, why, and what it takes to fix it before any work begins. If a part has to be ordered, we tell you and, where it's safe to do so, help you get some heat back in the meantime. On gas equipment, we also check venting and look for signs of combustion problems, because a heater that runs but vents poorly is a safety issue, not just a comfort one.
Repair or Replace? Honest Guidance for Older Systems
Most heating problems can be repaired. Sometimes, though, a furnace is old enough or damaged enough that putting more money into it isn't sensible, for example a cracked heat exchanger or repeated major failures. When that's the case, we'll tell you directly and lay out the options without pressure.
If you're considering a new gas furnace, keep in mind that South Coast AQMD Rule 1111 limits NOx emissions from natural-gas fan-type central furnaces sold and installed in this region, and the district has been amending the rule toward zero-emission requirements. The district sets and revises the compliance dates, so check the current rule before you plan a replacement. We can walk you through what applies at the time of your project.
Some homeowners use a replacement as a chance to switch to a heat pump, which handles both heating and cooling. Equipment rebates depend on which utility serves your address, so we confirm the current offer before quoting it. Note that the federal Energy Efficient Home Improvement Credit (25C) only covered qualifying heat pumps placed in service before December 31, 2025, and it isn't available for new installations after that date.
Serving Pasadena and Nearby Communities
We work throughout Pasadena, including ZIP codes 91101, 91103, 91104, 91105, 91106, 91107, and 91125. Pasadena sits inland, so it sees cooler winter nights and much hotter summers than neighborhoods near the coast. Fall Santa Ana winds can also bring hot, dry spells that push a lot of dust into homes and filters right before heating season starts.
We also provide heating repair in nearby San Marino, South Pasadena, San Gabriel, Alhambra, and Glendale.
Simple Steps to Try Before You Call
A few quick checks can sometimes restore heat or save a service visit. Make sure the thermostat is set to heat and the setpoint is above room temperature, and replace the batteries if it uses them. Check the breaker or switch that powers the furnace, and replace a dirty filter. If you smell gas, leave the house and contact your gas company right away. Don't try to relight or inspect the heater yourself.
More services in Pasadena
- AC Repair in Pasadena
- Heat Pump Installation in Pasadena
- AC Installation in Pasadena
- Furnace Repair in Pasadena