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 moreMontclair, CA
Postwar home AC and furnace upgrades in Montclair 91763, sized for inland summers
Montclair is a small city at the western edge of San Bernardino County, right where it meets Los Angeles County next to Claremont and Pomona.
Montclair at a glance
- ZIP
- 91763
- County
- San Bernardino County
- Served from
- Duarte head office
- Phone
- (626) 879-0711
- Hours
- Open 24/7
Quick answer
Most Montclair homes are compact postwar and 1960s houses with closet or garage furnaces, attic ducts and central air that was often added later. Marco's technicians repair aging systems, replace worn furnaces and ACs, and fix the ducts that hold these homes back in summer. We also install ductless systems for rooms the ducts never reached. Call (626) 879-0711 any hour, 24/7.
Overview
Heating and cooling help in Montclair
Montclair is a small city at the western edge of San Bernardino County, right where it meets Los Angeles County next to Claremont and Pomona. The 10 freeway runs through it, Montclair Place and the shopping along Central Avenue sit near the center, and the Metrolink station serves commuters heading toward Los Angeles. The city was known as Monte Vista before it took the Montclair name, and most of its neighborhoods were built in the decades after World War II.
That history shows up in the HVAC. A lot of Montclair homes still have equipment and ducts from earlier upgrades, and some still run original furnaces that are well past their expected life. Summers are inland hot, so cooling is where most problems show up. Our technicians come from the Duarte office on the 210 and the 10, and we focus on practical upgrades that make these smaller homes comfortable without overspending.
Small single-story houses with add-on central air
A typical Montclair house is single story with two or three bedrooms, built in the 1950s or 1960s. The furnace usually sits in a hall closet or the garage, with ducts in a shallow attic. When central air was added, installers often set a coil on top of the old furnace and kept the original ducts. That works for a while, but the old furnace blower may not move enough air for cooling, and the ducts leak into the attic.
Some homes have room additions or converted garages that were never tied into the ducts. Those rooms stay hot in summer and cold in winter. A ductless mini-split is often the cleanest fix, since it needs only a small wall opening and a line set to the outdoor unit.
Common problems
Common HVAC problems in Montclair homes
Very old closet furnaces
Some Montclair homes still run furnaces from decades ago. Cracked heat exchangers, worn igniters and failing blower motors become common, and an old furnace needs a careful safety check every season.
Mismatched AC and furnace
An AC coil added to an older furnace often gets too little airflow. The coil can ice up, the AC loses capacity and the system runs all afternoon without cooling the house.
Hot room additions
Additions and converted garages are often left off the duct system. They depend on window units or fans, and stay uncomfortable through the hottest Montclair afternoons.
Leaky attic ducts
Original ducts in a shallow attic lose cooled air through loose joints and torn insulation. The attic gets very hot in summer, so every leak costs real cooling.
Small side yards for condensers
Narrow side yards leave little room around the outdoor unit. Poor airflow and debris against the coil make the condenser run hotter and wear out sooner.
Most requested
The upgrades that pay off in Montclair
Furnace replacement and AC installation often go together in Montclair, since a matched system fixes the airflow problems that come from mixing old and new equipment. Mini-split installation handles additions and converted garages. Duct repair seals and reconnects runs in the attic, which helps every room. Furnace repair keeps an older unit running safely when replacement is not yet the right move. An HVAC inspection is useful before buying or selling a Montclair home, since many systems here have been patched over the years.
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 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 moreDuct Repair
We find crushed, torn and disconnected attic ducts, fix them with mastic and new flex, and check airflow before we leave.
Learn moreFurnace 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 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 moreMontclair weather, utilities and scheduling
Montclair sits on the inland valley floor, so summers are hotter than in Pasadena, often near or above 100 F in heat waves. Winter nights can fall into the 30s, and Santa Ana winds bring dust and dry air in fall and winter. 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.
Spring is the best time to plan a replacement here, before inland heat arrives. Title 24 can require a duct leakage test when an AC or furnace is replaced, so we check the ducts during the estimate. Call (626) 879-0711 any hour, day or night.
Questions
Montclair heating and cooling questions
Usually, yes. In many Montclair homes we can add an AC coil and outdoor unit to the existing furnace, if the furnace blower and ducts can move enough air. If the furnace is very old, replacing both together often makes more sense. We check the ducts, the electrical panel and the furnace before quoting, so you know the real cost before we start.
A ductless mini-split is often the best choice for a converted garage in Montclair. It needs only a small hole in the wall for the line set, and it heats as well as cools. Tapping into the main ducts rarely works well, because the old system is already stretched. We size the unit to the room and quote the price before installing.
It can be, if it passes a careful inspection. Older furnaces in Montclair homes can develop cracked heat exchangers, weak draft and worn safety controls. We test the burners, venting, flame sensor and limit switches, and check for carbon monoxide. If we find a safety problem, we explain it plainly and give you repair and replacement prices so you can decide.
Yes. Montclair is at the west end of San Bernardino County, an easy run from our Duarte office on the 210 and the 10. We serve the whole city, including the blocks near Claremont and Pomona. We answer 24/7 at (626) 879-0711 and give a realistic arrival window when you call.
Heating or cooling trouble in Montclair?
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