Licensed and insured HVAC across Los Angeles & Orange County — AC and heating repair, installation, and maintenance, backed by same-day service and 24/7 emergency response.
Trusted by homeowners across LA & Orange County
Satisfaction guaranteed
Emergency service, day or night
Fully insured & bonded
Rated by Google reviewers
We install & service every major brand
Whatever your home or building needs, A/D handles it end to end — same-day AC repair, right-sized new systems, and maintenance that keeps everything running.
Cleaner air, lower bills. Duct cleaning, air purification, and attic insulation that cut dust, allergens, and wasted energy throughout the home.
Air duct cleaning & services · Attic insulation · Indoor air quality solutions
Stop breakdowns before they start. Seasonal tune-ups and maintenance plans that protect your equipment and your warranty.
Preventive HVAC maintenance · HVAC tune-ups · Maintenance plans
One team for the whole system — install, repair, upgrade, or replace. Properly sized for LA homes and built to last.
HVAC installation & replacement · HVAC repair · HVAC system upgrades
Keep tenants and customers comfortable. Dependable commercial heating and cooling with service plans that minimize downtime.
Commercial HVAC services · Residential HVAC services · Rooftop & split systems
If your system is doing any of these, don't wait for it to get worse — most issues are diagnosed and repaired the same day.
Four decades of HVAC done right — fast, fair, and built to last.
A licensed and bonded California contractor serving homes and businesses across the region. Every job is backed by labor and material warranties.
Real people answer the phone, and a technician can often be at your door the same day — including nights and weekends when it matters most.
Free estimates and clear pricing before any work begins. We recommend what you actually need — never an upsell.
Right-sized, high-efficiency systems and tune-ups that lower your bills while keeping every room comfortable year-round.
Three steps from problem to fixed — most repairs handled the same day.
Call us or send the quick form. A real person helps you right away — no phone-tree runaround.
A licensed tech finds the issue and gives you a clear, upfront price before any work starts.
We fix it right — same day whenever possible — and leave your home clean and cool (or warm).
The cheapest repair is the one you never need. Our maintenance plans keep your equipment efficient, extend its life, and protect your manufacturer warranty.
Every visit includes
HVAC emergencies don't wait for business hours — and neither do we. Call now for fast dispatch across LA & Orange County.
Four decades of comfortable homes and businesses across LA and Orange County.
“Our air conditioner stopped working during a hot LA weekend. Their technician arrived quickly, diagnosed the issue fast, and had our cooling system running again the same day. Professional, honest, and very knowledgeable.”
Ari Roberts
Tarzana, CA · Emergency AC repair · 2026
“Their technician was punctual, friendly, and extremely experienced. They repaired our central air conditioning quickly and explained everything clearly before starting the work. It's refreshing to find an honest HVAC contractor in Los Angeles that truly cares about customer service.”
Oswald Bennett
Sherman Oaks, CA · Central AC repair · 2026
“The best AC repair service I've experienced in Los Angeles. Our air conditioner stopped working during a heat wave and their technician arrived fast, diagnosed the issue quickly, and had it running the same day. Honest pricing and excellent communication.”
Louis Campbell
Sherman Oaks, CA · AC repair · 2026
“They did an amazing job repairing our air conditioner. We called several HVAC companies in Los Angeles and they were by far the most professional and responsive. Their technician diagnosed the issue quickly and got our system running perfectly again.”
Istro Jean-Mikel
North Hollywood, CA · AC repair · 2026
“An excellent experience. Their technicians were professional, knowledgeable, and showed up on time. They quickly diagnosed the issue with my air conditioner and had it running perfectly the same day. What really stood out was their honesty and fair pricing.”
Michael Vincent
Los Angeles, CA · AC repair & service · 2026
From the San Fernando Valley to the coast — find your nearest A/D team below.
Areas served
Areas served
Everything you need to know before you book. Don't see your question?
Call (818) 780-8288Yes. Heating and cooling failures don't keep business hours, so we offer 24/7 emergency service across Greater Los Angeles and Orange County. Call (818) 780-8288 any time and we'll get a technician dispatched.
We serve the San Fernando Valley and greater Los Angeles from our Van Nuys office, and Orange County from our Costa Mesa office — including Sherman Oaks, Encino, Studio City, Burbank, Glendale, Costa Mesa, Newport Beach, Irvine, Huntington Beach and the surrounding communities.
Yes. A/D Air Conditioning & Heating is a licensed and bonded California contractor serving homeowners and businesses across Southern California, and our work is backed by labor and material warranties.
We do both. Our team installs, repairs, and maintains heating and cooling systems for homes and for commercial properties, including rooftop and split systems and scheduled service agreements that minimize downtime.
In most cases, yes — same-day service is available for repairs, and emergency calls are prioritized. The sooner you call, the more likely we can get to you today. Call (818) 780-8288 or request an estimate online.
Yes. We provide free, no-obligation estimates on new air conditioning and heating system installations and replacements, with honest, right-sized recommendations for your space and budget.
We recommend a tune-up twice a year — cooling in spring, heating in fall — to keep your system efficient, extend its life, and protect manufacturer warranties. Ask about our maintenance plans, which schedule it for you.
Get a free estimate today. Call us directly or send the form and we'll be in touch fast — same-day service available across LA & Orange County.
Call us 24/7(818) 780-8288
