Genius-level comfort.
Around the clock.
Einstein Heating and Air repairs, installs, and maintains heating and cooling systems across Downey and Greater Los Angeles — with live dispatch 24 hours a day, 7 days a week.
A broken AC has always meant waiting. That ends now.
No phone trees. No "sometime between 8 and 5." A live dispatcher answers 24/7, gives you a real arrival window, and sends a background-checked technician in a fully stocked truck — so most repairs are finished on the first visit.
Every system. Every brand. One number to call.
From emergency air conditioning repair to whole-home indoor air quality, one licensed team handles it end to end.
Three ways Einstein gives you your comfort back.
Fix it fast. Any hour.
Emergencies don't keep business hours, so neither do we. Live dispatch answers around the clock and sends the nearest technician with a truck stocked for first-visit fixes.
24/7 AC repair in Downey →Install it right. The first time.
We measure, we don't guess. Every replacement starts with a real load calculation, includes permits and city inspection, and ends with commissioning — so the system performs like the label says.
AC installation & replacement →Keep it running. For years.
The Einstein Maintenance Plan brings us out twice a year to tune, test, and clean your system — fewer breakdowns, lower energy use, longer equipment life, and priority scheduling when you need us.
Seasonal HVAC maintenance →Neighbors trust us with their air.
"Our AC died during the September heat wave. I called at 9 PM expecting voicemail — a real person answered, and a tech had us running again before midnight."
"They explained three options in plain English, never pushed the biggest one, and left the garage cleaner than they found it. Rare these days."
"New heat pump installed in one day — permit, inspection, haul-away, everything handled. The house has never been this evenly comfortable."
"Our restaurant's rooftop unit failed on a Friday. Einstein had it diagnosed that afternoon and we never lost a service. They run our maintenance now."
"My mom's furnace went out on a cold night. They treated her kindly, checked for carbon monoxide, and fixed it that evening. Forever grateful."
"Duct sealing made a bigger difference than I believed possible — the back bedrooms finally cool down and the system runs half as often."
Built for real comfort. Whatever your building looks like.
Getting comfortable is easy.
Three steps. No forms, no waiting on hold.
Call anytime
Day or night, a live dispatcher answers (562) 729-0706 and books a real arrival window — not a maybe.
Get answers, not upsells
Your technician diagnoses the system, then walks you through clear written options — what's wrong, what we recommend, and why — before any work begins.
Relax
Repairs are tested under load, the workspace is left spotless, and the work is guaranteed. You go back to not thinking about your HVAC.
Practical HVAC advice from the field.
Frequently asked questions
Do you really answer the phone 24/7?+
How fast can a technician get to me?+
Which brands do you service?+
Do you work on both homes and businesses?+
Are your technicians licensed and background-checked?+
Will I know what the work involves before you start?+
Proudly serving Southeast LA County
Headquartered at 8221 3rd St Unit 308, Downey, CA 90241 — with technicians across the region.