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Winnetka began in the 1920s as Charles Weeks’ poultry colony, a community of small farms where families raised chickens and grew their own food, and it was named after Weeks’ old hometown of Winnetka, Illinois. The farms gave way to post-war tract homes, but many lots are still larger than average. We connect Winnetka homeowners with independent, licensed HVAC contractors.
ADUs, Garage Conversions and Back Units
Winnetka’s roomy lots are a natural fit for backyard ADUs, converted garages and room additions. These spaces usually aren’t connected to the main house’s ductwork, and stretching the old system to cover them often leaves everything under-cooled. A separate ductless mini-split is usually the simplest way to heat and cool them.
Flat Roofs, Full Sun
Winnetka’s single-story homes take full sun all day in one of the hottest parts of the Valley. Attic insulation, attic ventilation and a lighter “cool roof” when it’s time to re-roof can all take load off your AC, which can let a smaller, less expensive system do the job.
Mid-Century Homes and Old Ducts
Most homes here date from the 1950s and 1960s, with ducts running through a hot attic. Before replacing a system, have the ducts checked. Sealing leaks and replacing crushed sections can make a new system far more effective.
Common Winnetka Requests
- Heating and cooling an ADU or converted garage: ductless systems.
- Replacing both AC and furnace: a heat pump.
- Rooms that never cool: duct repair or AC repair.
- Pre-summer tune-ups: maintenance.
Heating Season in Winnetka
ADUs and converted garages that aren’t on the main ductwork often go without good heat in winter. A ductless mini-split can heat and cool them efficiently. In the main house, change the filter and have older attic ducts checked so heat isn’t lost overhead. See ductless mini-splits and get your heater ready for winter.
We connect Winnetka homeowners with licensed local HVAC pros, and we help nearby neighborhoods too.
Areas We Serve Around Winnetka
All of Winnetka (ZIP code 91306), including the neighborhoods along Winnetka Avenue, Roscoe Boulevard and Sherman Way, plus the Canoga Park, Reseda, Northridge and Chatsworth borders.
Common Questions
Can I cool my ADU or converted garage without changing my main system?
Yes. A mini-split with its own outdoor unit can heat and cool the space independently. A contractor will size it for the room and check your electrical panel. New units and additions generally need a permit.
Does a cool roof really lower AC bills?
It can help, especially on single-story homes in full sun. A lighter roof reflects more heat, keeping the attic and ducts cooler. Combined with good attic insulation, it can noticeably cut how hard the AC works.
Who issues permits in Winnetka?
Winnetka is in the City of Los Angeles, so permits come from LADBS, and electricity comes from LADWP.
Connect With a Winnetka Contractor
Call us or fill out the form below, and we’ll connect you with a licensed contractor who works in Winnetka. It’s free for homeowners.
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Valley HVAC Network is a referral service, not an HVAC contractor. All work is performed by independent, licensed contractors. You can verify any California contractor’s license at CSLB.ca.gov. Learn how it works.