
Service area
Heating and Cooling in Montebello, CA
Heating and cooling in Montebello starts with what is actually in your home, because the city has been building since before 1920. Proair checks the system you have, tells you honestly how much life it has left and gives the price before any work.
- CSLB C-20 #776028
- 4.8 from 16 Google reviews
- Shop in USA Business Park
- Open Mon to Sat, 9 to 5
Proair covers Montebello, about 8.4 miles from our Paramount Boulevard shop, roughly 18 minutes without traffic. It sits about 8 miles east of downtown Los Angeles at 203 feet of elevation, between East Los Angeles and the San Gabriel Valley. The one thing that sets it apart for HVAC is range: a city this old can have a 1930s heater on one street and a recent heat pump a few blocks away.
Why do hills and flats change heating and cooling in Montebello?
Standard Oil found oil in the Montebello hills in 1917, and the wells produced for about sixty years. Below them, the city was known for flowers, berries and vegetables, and it took the motto “The City of Flowers With an Oil Well Payroll.” It incorporated on October 16, 1920.

Terrain adds to the mix. A house on the upper streets toward the hills can lose shade from its neighbors and take more direct sun on the roof and west windows. A house on the flats near Whittier Boulevard may be older, with more shade from the houses around it. The published average high is 79.0°F, yet the record is 113°F, so a system has to cope with both.
The housing spread is wide. The Census Bureau’s 2020 to 2024 survey dates the median Montebello unit to 1963, with 45% built before 1960 and 84% before 1980. Fewer than half, 47%, are detached houses. Another 27% sit in buildings of two to 19 units, 15% in buildings of 20 or more, and 54% of households rent.
Heat splits unevenly too. About 54% of occupied homes use utility gas and 32% use electricity, and 11% report no heating fuel at all. With a record low of 29°F, those last households may need a heating plan more than a repair.
How old is your system? Read the nameplate
Go by the equipment, because in Montebello the age of the house tells you little. The model and serial number sit on a metal plate on the condenser and furnace. Take a photo of each and send it with your description when you call. The serial number usually gives the build year, and that decides whether a repair makes sense or a replacement belongs in the conversation.
Look at the supporting parts too. Wiring, ducts and gas lines may date from a different decade than the unit they serve. And check outdoor equipment after a big storm: an EF1 tornado damaged 17 structures here on March 22, 2023.

Not sure how old your Montebello system is? Call us.
Send the nameplate photo and we can talk it through. Monday to Saturday, 9 to 5.
- CSLB C-20 #776028
- 4.8 from 16 Google reviews
- Shop in USA Business Park
- Open Mon to Sat, 9 to 5
Building & Safety hours on Beverly Boulevard
The City of Montebello Building & Safety Division is at (323) 887-1497, and City Hall is at 1600 W. Beverly Boulevard. The counter takes walk-ins all day Monday to Thursday and closes Fridays. The division issues mechanical permits, and its inspections cover heating, ventilation and air conditioning units. Inspections run Monday to Thursday, 7:30 AM to 5:30 PM, so a Friday finish waits for the next week. The city asks you to contact the division before starting a project to find out which approvals and inspections apply. It also posts construction hours of 7:00 AM to 8:00 PM on weekdays and 9:00 AM to 6:00 PM on weekends and holidays.
I-710, I-605, the 60 and I-5 all serve the city, so tell us which exit is closest. Grant Rea Park and the Montebello Municipal Golf Course make easy reference points. So do Bicknell Park, the Sanchez Adobe in East Montebello and the Montebello/Commerce Metrolink station on Flotilla Street. Southern California Edison and SoCalGas are the usual providers. Check your bill to be sure.
Which repairs and upgrades suit Montebello homes?
- AC repair
Capacitors, contactors, fan motors and leaks. Montebello’s record high is 113°F, so a weak part tends to quit on the hottest afternoon. Keep shrubs off the condenser on the sunny upper streets.
- AC replacement
Price it beside the repair when a major part fails on an old unit. With 84% of Montebello units built before 1980, ask how the connected ducts will be sealed and tested.
- Furnace replacement
A hallway furnace of unknown age is worth pricing before it fails on a cold night. About 54% of occupied Montebello homes burn utility gas, so have the venting checked in the same visit.
- Heat pump installation
Worth a look for homes where one electric system can handle both seasons. About 32% of occupied Montebello homes already heat with electricity, so ask if the ducts and panel suit the change.
- Central air addition
For older homes on the flats that never had ducts. About 45% of Montebello units predate 1960, so have the electrical panel and attic measured up before you compare prices.
- Ductless mini splits
Cooling for a unit with no duct path. About 27% of Montebello homes sit in buildings of two to 19 units and most households rent, so get the owner’s approval before booking.
Furnace maintenanceA fall check catches venting and burner issues on older gas equipment. Montebello’s average high is 79°F, so a heater can sit idle for months and then light with dust on the burners.
From our shop to your street off Whittier Boulevard
We work from Paramount Boulevard in South Gate. A technician arrives with tools, tests the system and explains the fault plainly. You get the price before anything happens, and we run the system afterward to prove it works.
Heating reviews to read before you decide on an older Montebello furnace
4.8 stars from 16 Google reviews, checked October 30, 2026. Read every review.
“I found this company to be incredibly reliable. The technician was well-prepared and had all the necessary tools for my air conditioning and heating repair. He got the job done quickly and efficiently, and the response time from their office was impressive. Thank you for the excellent service—keep it up!”
“Furnace installation was smooth and efficient. The pros are that my new furnace is working like a charm, and my home is warmer. The con was the initial installation cost, but the benefits are evident.”
Cities next to the Montebello hills
Nearby, we also serve Commerce, Pico Rivera, Bell Gardens, East Los Angeles and Whittier.
Proair Air Conditioning Services
13440 Paramount Blvd f
South Gate, CA 90280
In USA Business Park
Hours: Monday to Saturday, 9:00 AM to 5:00 PM. Closed Sunday.
Sources
Montebello questions
How can I tell how old my furnace is in a Montebello home?
Find the metal data plate inside the furnace door and note the serial number. Most makers build the date into that number, though the format varies, so a photo is the quickest way for a technician to decode it. If there is no plate, past permit records from the city may help date the equipment.
Do hillside homes in Montebello need a bigger AC?
Not automatically. Sun on the roof and west glass raises the load, but size should come from a Manual J, the math that adds up heat gain for your house. Oversized units cause short cycling, which means quick on-off runs that wear parts and leave humidity behind. Ask for the calculation before you approve a size.
Can I walk in to Montebello Building & Safety on a Friday?
No. The office is closed Fridays. The counter takes walk-ins all day Monday to Thursday, and inspections keep the same four days. Call (323) 887-1497 or email buildingsafety@montebelloca.gov first, since hours can change. Your installer should state in writing who handles the permit before work begins.
Find out what your Montebello system has left
Send us the nameplate and call for a clear, upfront quote. The shop is open Monday to Saturday, 9 to 5.
- CSLB C-20 #776028
- 4.8 from 16 Google reviews
- Shop in USA Business Park
- Open Mon to Sat, 9 to 5