HVAC · Los Angeles County

Air Conditioning in Los Angeles

Installation, same-day repair, and ductless mini splits, complete air conditioning service for homes and businesses across Los Angeles County and the San Fernando Valley.

  • Same-day AC repair in most cases
  • Manual J-sized installations
  • Central, ductless & rooftop systems
  • Licensed, bonded & insured, CA Lic #885156
20+ YearsFamily-owned, serving Los Angeles
4.8★ on GoogleFrom 144 customer reviews
24/7 Emergency ServiceA real person answers, day or night
Upfront PricingA flat price in writing before work starts

Cooling Done Right, From Install to Repair

A dead air conditioner during a San Fernando Valley heat wave isn’t an inconvenience, for kids, seniors, and pets it’s a safety issue. ServiStar prioritizes emergency AC calls across Los Angeles County with same-day dispatch, fully stocked trucks, and technicians trained on every major brand, so the overwhelming majority of repairs are diagnosed and completed in a single visit.

And when it’s time for a new system, we do installation the way it should be done: a Manual J load calculation to size the equipment precisely, honest SEER2 and brand guidance, permits and Title 24 compliance handled, and final airflow balancing so every room actually gets cool. Central air, ductless mini splits, or rooftop units, one accountable team from start to finish.

ServiStar technician checking refrigerant with gauges

Installation & Replacement

New AC systems engineered for your property, from system selection through final testing.

  • Manual J load calculation on every install
  • SEER2 rating & brand guidance
  • Permits & Title 24 compliance included
  • Old unit removal & EPA refrigerant recovery
  • Final airflow balancing & charge testing

Repair & Maintenance

The common failures that take out most systems, diagnosed fast and fixed on the spot.

  • Same-day emergency repair
  • Refrigerant leaks found & sealed
  • Capacitor & electrical failures
  • Frozen coils & airflow problems
  • Seasonal tune-ups that prevent breakdowns

Cooling Systems We Install & Service

The right system depends on your ductwork, layout, and cooling demand, we walk you through the pros and cons of each.

ServiStar technician servicing an AC condenser

Central Air Conditioning

Whole-home cooling through your duct network from a single outdoor condenser, the standard for homes with existing ductwork.

ServiStar technician installing a ductless mini split

Ductless Mini-Splits

Wall-mounted heads cool individual rooms independently, perfect for room additions, ADUs, and homes without ductwork.

Rooftop AC condenser unit on a Los Angeles building

Rooftop & Package Units

Residential and light-commercial package units installed and repaired on the roof, where they live.

Signs Your AC Needs Attention

Catching these early usually means a small repair instead of a big one, and when replacement is smarter, we show you both numbers honestly.

  • Blowing warm or weak air
  • Loud grinding, buzzing, or screeching
  • Breaker trips when the AC starts
  • Water pooling around the indoor unit
  • Ice on the refrigerant lines
  • Your AC is 12-15+ years old
  • Energy bills climb every summer
  • Some rooms never get cool

How We Handle Your AC

Most AC failures trace back to a handful of causes: a failed capacitor, low refrigerant from a slow leak, a clogged drain line, or an electrical fault. The difference between a good repair and a repeat visit is finding which one, and why it happened.

On the installation side, proper sizing is the single biggest factor in long-term comfort and energy use. An oversized AC short-cycles and never dehumidifies; an undersized one runs nonstop and burns out early. That’s why every ServiStar install starts with a Manual J load calculation, never a square-footage guess.

Either way, the visit ends the same: the system tested under full load, the work explained in plain English, and a price you approved before anything started.

Good to know: a frozen AC is trying to tell you something, usually low refrigerant or blocked airflow. Turn it off and call; running it frozen can kill the compressor.

1Call for same-day dispatch
Call (818) 873-0613, emergency AC calls are prioritized during heat waves across LA County.
2Diagnose the real cause
Advanced diagnostics find the actual failure, not just the symptom that announced it.
3Approve the flat-rate price
Repair or replacement, you see the exact price in writing before we start. No hourly meter.
4Fix, test & verify
Repaired or installed, tested under full cooling load, and walked through before we leave.

Air Conditioning FAQs

Yes, same-day appointments are available across most of Los Angeles County, and emergency calls are prioritized during heat waves. Call early in the day for the best window.
The most common causes are low refrigerant from a leak, a failed capacitor keeping the compressor from starting, a frozen evaporator coil, or blocked airflow from a clogged filter. We diagnose the actual cause before quoting a fix.
It depends on far more than square footage, insulation, windows, sun exposure, ceiling height, and ductwork all matter. We run a Manual J load calculation on every install so the system is sized precisely, never guessed.
Usually the best option, each wall-mounted head cools its own zone with no duct losses, and a single outdoor unit can run up to five heads. Ideal for older homes, room additions, garages, and ADUs.
Yes, AC installations and replacements require a mechanical permit and must meet Title 24 energy code. We handle the permit and the inspection as part of every installation.

Cooling Systems We Service

Two central air conditioner condensers on concrete pads beside a Los Angeles home
Rooftop AC condenser unit on a Los Angeles building
ServiStar technician installing a ductless mini split
ServiStar technician installing a smart thermostat

Rated 4.8★ by Our LA County Neighbors

Real Google reviews from homeowners and businesses we’ve served across Los Angeles County, unfiltered and updated automatically.

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Haidy Mazate profile picture
Haidy Mazate
2 days ago
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Man oh mannnn. Bought an old home, found out the corrosion on the pipes masked the broken parts. When I say disaster I mean disgusting. The Servistar pros saved the day. From sun up to down. Was it a tad more expensive than I wanted to pay for? Yes, but who WANTS to pay for plumbing issues? Nobody. When I say those pipes were done up right. I mean wow!!! Dig the whole ditch went under the house and closed everything up. Unbelievable! I won't trust anyone else.
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Kendyll Melton profile picture
Kendyll Melton
3 days ago
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Wow Mike and Dan y'all did that. Now we have our hot water back My family really appreciate You being on time very patient explained everything to myself even though my husband was not at home and I knew nothing about plumbing you were very patient and explained everything you guys stayed at your name at the doors you guys were very professional we really appreciate it I wish I can give you more stars keep up the good work and great customer service!
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Chloe Gibbs profile picture
Chloe Gibbs
11 days ago
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+0
Water heater completely flatlined on us and finding someone who could actually fix it right away felt like a mission, when we were staring down days of freezing cold showers with a full house. Servistar came through right on time, diagnosed a shot burner instantly, and actually had the replacement parts sitting right there in his truck. He did not try to pressure us into buying an expensive brand new unit we clearly did not need. He just swapped out the bad parts, got everything dialed in, and had hot water pumping again in under an hour. Keeping their number saved.
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Saianna Smith profile picture
Saianna Smith
15 days ago
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We live in an older house and although the plumbing was redone sometime in the 90's, it still has its set of problems. These problems always seem to happen over a holiday or long weekend lol. Thankfully I found Servistar a few years back and can always count on them to come out quickly without charging hundreds of dollars extra just for prompt "emergency" service. Michael and Daniel are the absolute sweetest best. Another great plus is my boys love them and will watch patiently and quietly while they work. Hey, free babysitting thrown into the mix always works for me! I have referred them to so many of my neighbors and they have never disappointed. They have been especially good with elderly neighbors who always get taken advantage of by less reputable companies.
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Nolan Green profile picture
Nolan Green
16 days ago
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Excellent service and great communication on a new tankless water heater install. Would recommend them especially for that.
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Alyssa Marquez profile picture
Alyssa Marquez
43 days ago
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Excellent service from Mike, They were able to come out on a Sunday night and took care of a drain blocked by root balls that you could see on camera and that came out on the snake. They provided a very reasonable quote to hydro jet the line the following day. I highly recommend Servistar for any plumbing needs and we will be using them for any future plumbing jobs as well.
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stafford faulkner profile picture
stafford faulkner
51 days ago
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awesome company 100% recommend!
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Annie Barillas profile picture
Annie Barillas
72 days ago
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I have a 20+ year old Bradford White gas water heater that I wanted replaced before next year when electric heaters may be required. Servistar was one of the BW recommended experts. I called up and a couple of guys showed up to look at the job. Subsequently, the manager called up with more information. The two men returned to complete the job efficiently and left with everything neat. They also installed a faucet to a deep laundry sink. I thought they would have to pull the sink out to get at the faucet, but they managed to do it in place. Their quote was the most detailed I have seen for any job. The terms and conditions were easily understandable. I couldn't be happier with the service. They are my plumbers now.
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Natalie molina profile picture
Natalie molina
73 days ago
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My husband is a commercial builder, so we have incredibly high standards for trade work and look at contractor quotes with a magnifying glass. We knew the old cast iron sewer line under our slab was failing, and another company said the only fix was jackhammering our entire hallway floor. I called Servistar to see if we could do a structural epoxy coating instead. The team came out right away, hydro jetted the line, and used a specialized chain tool before applying the coating. Even my husband was thoroughly impressed by how clean their lines were. Their quote was fair after doing lots of research.
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Camila profile picture
Camila
76 days ago
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I ended up having a pipe leak that damaged part of my ceiling during the night. Luckily Servistar was quick to respond and came in asap the next morning and went straight to work! They were both really professional and thorough. They were able to get my pipes replaced within 2 hours and even gave me advice for a different plumbing question that I had. The price was very reasonable as well given the high quality work. Definitely recommend choosing them their the best in the city!
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jessica sanchez profile picture
jessica sanchez
86 days ago
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8 days without water; different company spent several hours over 3 different days but could not identify the problem. Michael returned my call promptly on a late Saturday afternoon, Daniel was there shortly thereafter. He found the problem quickly and put a plan in place to our relief! Excellent, fast, friendly, competent service - they have definitely earned our business!
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Kyle Stephen Agdigos profile picture
Kyle Stephen Agdigos
92 days ago
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We had a full-on sewer line catastrophe, and they saved us. We called him in a panic for a hydro-jet emergency, and he showed up right away. Turns out, the whole sewer line had collapsed. He walked us through everything--tried to avoid a full replacement--but yeah, we needed one. The terrain was brutal, and past plumbers made a mess, but Michael powered through. He got it done in a week, made sure we understood the whole deal, gave us a fair price, and said this new line should last about 150 years. We'll check back in a century, right? Seriously--five stars, and I'd call him again, no question.
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Aileen profile picture
Aileen
101 days ago
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We needed full replacement of the sewer drain system of our 1600 sq. ft. house. The crew replaced the entire system under the house and out to the sidewalk in 2 days. Very timely and responsive. Thorough clean up after the work was completed. Very professional job, latest equipment, and adequate number of workers. Good price, too.
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Elizabeth Orellana profile picture
Elizabeth Orellana
101 days ago
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Michael was wonderful! He arrived right on time and his visit was quick and helpful. He solved our main problem in the kitchen within a matter of minutes, and was able to give guidance on next steps for a separate irrigation issue in our back yard as well. Very professional and efficient. Highly recommend! :)
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Jasmine Maldonado profile picture
Jasmine Maldonado
104 days ago
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My main sewer line under the kitchen slab was backed up badly and the initial diagnostic showed our old cast iron pipe was completely rotting out from the inside. I thought the crew would have to jackhammer through my concrete floors inside our home in Burbank which would have been an absolute nightmare. Instead the guys explained they could do an epoxy coating completely from the toilet line and an outside clean out. They started with a heavy hydro jetting to clear the debris and then used a specialized chain drill with a diamond tip to reinstate the rough pipe walls. Looking at the camera footage after the lining cured was incredible because it looks brand new. I am so happy they did not have to do what I thought was going to be massive structural damage to the property. Everything runs perfectly now without a single mess left behind.
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Ivana Taylor profile picture
Ivana Taylor
105 days ago
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Our hot water heater stopped working and we couldn't get the pilot light to light or stay lit. It's an older unit so we figured it might be done. We had another company come out first and the quote they gave us to replace it was high so we called Servistar Plumbing for a second opinion and they showed up within the hour, thank God they are close to Studio City.

Daniel was our tech and he was great, super honest and straightforward. He explained what was going on clearly and didn't try to sell us anything we didn't need. The estimate he gave us was very reasonable (like 30% cheaper than other company!) and they were able to replace it the same day.
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Kodi Trevino profile picture
Kodi Trevino
105 days ago
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Great response time on my request to come out and snake my toilet. Originally was going to come Wednesday but came a day early and got it all fixed in the matter of a few minutes. Very happy with the communication or service. Would 100% recommend.
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Chris Perez profile picture
Chris Perez
106 days ago
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I had a tankless water heater issue and I found them thru a quick google search! Servistar responded and were able to send someone out next workday. Team professionally answered my many questions and offered range of solutions. We decided to change out the heater completely and he had a crew onsite very quickly to start/complete the job in the same day. Prices seemed reasonable.
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Alex Mcclain profile picture
Alex Mcclain
106 days ago
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Recently I learned I needed to replace a 60 foot 70 year old sewer line at a tenant occupied house. I researched several plumbing companies and decided on these plumbers in Sherman Oaks. My concern was the fact that I was going to be out of town when the work took place. I asked my son to monitor the work while I was gone. The project was done quickly and efficiently. Each day I received a text, including a photo, of the men coming to work that day. At the completion I received numerous photos at various stages of the replacement. My son also texted me photos saying "Great job, very professional. Pros make it easy. Good choice mom”. BEST PLUMBERS!
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Edidiong Akpakpan profile picture
Edidiong Akpakpan
107 days ago
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Had my sewer pipe clogged just from time and use. Called these folks Friday at noon and sent one of their best employees for the job and arrived in a few hours. Got a good price quote to also replace 2 toilets. Daniel was the plumber that came through and worked hard on a Friday night with a 5:30P.M. arrival time! The supervisor Micheal came out to my house later in the evening to help Daniel out and finished the job by 1015p.m. Michael did recommend a "clear out" and showed me w detailed video cam of my sewage pipes 75FT. down. I was impressed with their overall patience, professionalism and hard work! Will use them again in the future!

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