Skip to content
Marco'sHeating & Air, Pasadena

Covina, CA

AC replacement and tune-ups in Covina 91723, for postwar ranch homes and duplexes

Covina grew up around citrus.

Covina at a glance

ZIP
91723
County
Los Angeles County
Served from
Duarte head office
Phone
(626) 879-0711
Hours
Open 24/7
Quick answer

Covina is full of single-story ranch homes built after the citrus groves gave way to housing in the 1950s and 1960s, and many of their AC systems are reaching the end of their life. Marco's technicians replace and tune up AC and furnaces across Covina, with a clear price before work begins. Call (626) 879-0711 any hour, 24/7. Our Duarte office is close by.

Overview

Heating and cooling help in Covina

Covina grew up around citrus. The groves are mostly gone, but the downtown along Citrus Avenue still has its older storefronts and the Metrolink station, and the neighborhoods around it hold mid-century ranch homes on generous lots with mature shade trees. Covina is one of those valley cities where a typical home has been on its second or third AC system since the original furnace went in.

That history shapes what we see. An AC replaced in the early 2000s may still run on R-22 refrigerant, and a leak or compressor failure now raises the question of replacement. A well-planned replacement is more than swapping boxes: we check the ducts, the furnace or air handler match, the thermostat and the electrical. When the system is newer, a yearly tune-up keeps it running cleanly through Covina's hot summers. We explain options plainly and quote before starting.

Installer setting a new AC condenser on a fresh pad beside a 1950s ranch house with a low-pitched roof, citrus tree and mature shade tree in the yard

Mid-century ranch homes and how their systems age

The classic Covina ranch has three bedrooms, a low-pitched roof, an attic with ducts and a furnace in a hall closet or the garage. The AC condenser sits beside or behind the house, sometimes shaded by an old tree that drops leaves and blossoms into the coil. Low-slope roofs leave a shallow attic, so ducts may be pressed against the roof deck where summer heat builds. Many of these homes also have a later family room addition that the original ducts were never sized to serve.

Covina also has duplexes, small apartment buildings and newer townhomes, especially near the main boulevards. Those units often have smaller, packaged or split systems in tight closets, where filter access is awkward and maintenance gets skipped. A clogged filter in a closet system is one of the most common causes of a frozen coil we find.

Common problems

What Covina AC and heating systems need most

Aging R-22 systems

Systems from before 2010 often run on R-22, which is no longer produced or imported in the US. Leaks get expensive to recharge, so many owners choose replacement when one appears.

Tree debris in condensers

Mature shade trees in Covina yards drop leaves, seed pods and blossoms into outdoor coils. Blocked fins raise head pressure, and the compressor works harder on every hot afternoon.

Additions the ducts never reached

Family rooms added in the 1970s and later often have one small register or none. A ductless head or a properly sized new branch run solves the room that never cools.

Skipped tune-ups

Without yearly service, weak capacitors, dirty coils and slow leaks go unnoticed until the first heat wave. A spring tune-up catches most of them before they leave a house without cooling.

Mismatched indoor and outdoor parts

Some past replacements changed only the outdoor unit. A mismatched coil and condenser can cool poorly and wear out early. We check the match when we inspect or replace.

Most requested

Why replacement and maintenance lead in Covina

AC replacement and full HVAC system replacement are common in Covina because so many systems are old enough that repairs no longer make sense. When we replace, we match the outdoor unit, indoor coil and furnace or air handler, and test ducts where Title 24 requires it. Furnace replacement often happens alongside. AC maintenance and a maintenance plan protect newer systems. Mini-split installation handles the room additions that the original ducts never served well.

AC Replacement

Swap a worn-out air conditioner for a correctly sized SEER2 system, with duct testing and permit work handled in one job.

Learn more

AC 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 more

Full 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 more

Furnace 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 more

HVAC 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 more

Ductless Mini-Split Installation

Ductless heat pumps for Craftsman bungalows, additions, converted garages and hot upstairs rooms, with head styles chosen room by room.

Learn more

See all 41 services

Covina weather, utilities and scheduling

Covina sits in the eastern San Gabriel Valley, where summer afternoons often reach the high 90s and heat waves pass 100 F. Winter nights fall into the 40s and occasionally the 30s. Electricity comes from Southern California Edison and gas from SoCalGas. Ask about current SCE or SoCalGas rebates and state heat pump incentives when funding is open. We handle the permit where the city requires one, and Title 24 rules can require a duct leakage test when an AC or furnace is replaced.

From our Duarte office we reach Covina by the 210 and Azusa Avenue, or by the 605 and the 10. Spring is the best time to plan a replacement, before the summer rush, and many owners book tune-ups in April or May. Call (626) 879-0711 any hour and we will set a time that works around your schedule.

Questions

Covina heating and cooling questions

Consider replacement when your Covina system is around 15 years old or more, runs on R-22, needs a compressor or coil, or keeps needing repairs every summer. If the repair would cost a large share of a new system, replacement usually makes more sense. We give you both prices and explain the tradeoffs so you can decide without pressure.

A tune-up in Covina covers cleaning the condenser coil, checking refrigerant pressures, testing the capacitor and contactor, checking the blower and filter, clearing the condensate drain and measuring temperature drop across the coil. We also look for tree debris and corrosion on the outdoor unit. If something is wearing out, we tell you and quote before any repair.

Yes. Additions in Covina ranch homes often get too little air from the original ducts. Depending on the attic and the room, we either add a properly sized branch run with a return path or install a ductless mini-split head that serves the room on its own. We measure the room and look at the attic before recommending one.

Spring is usually the easiest time. Covina summers bring heavy demand across the valley, and scheduling a replacement in March, April or May means more choice of install dates and no rush decision during a heat wave. We still replace systems in summer when needed. Call (626) 879-0711 to set up an inspection.

Heating or cooling trouble in Covina?

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
Call (626) 879-0711