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Air Conditioning Services in North County, CA

AC Experts Serving Carlsbad, Vista, San Marcos & the Surrounding Areas

Air Conditioning Services in North County, CA 1Our team of highly skilled technicians is among the best-rated in northern San Diego County. At Sherlock Plumbing, Heating & Air, we work to ensure each member of our team is trained rigorously in the most effective techniques for service on a broad variety of air conditioning systems.

When you are looking for a brand-new home cooling system, our comfort consultants have the knowledge and experience to work with you and determine the best make and model for your home’s needs.

We offer the following AC services throughout North County and the surrounding areas:

We have extensive experience in the home comfort field, and we are prepared to provide you with any assistance you may require.

Contact a Team Member Today!


We are proud to offer our customers a variety of air conditioning services in the North County areas of Vista, Carlsbad, Oceanside, Encinitas, and San Marcos to help ensure that your home is cool and comfortable all summer long. We have years of experience helping our customers handle any air conditioning services that may be necessary for their system, and we can also help you to choose a new system.

If you need air conditioning repair services, there are several telltale signs to be on the lookout for, including:

  • Your system struggling to maintain a consistent temperature
  • Rooms or areas of your home that are significantly different temperatures
  • An increase in utility bills
  • Frequent system breakdowns

Sherlock Plumbing, Heating & Air offers not only AC repair services, but also comprehensive preventive maintenance services. Regularly scheduled maintenance can extend the lifespan of your AC system and help you avoid major breakdowns, especially in the heat of summer when it’s most inconvenient. Take advantage of our VIP Comfort Club to ensure you’re always comfortable!

Don’t hesitate to contact us today to schedule service with one of our highly qualified technicians. We are northern San Diego County’s most trusted comfort provider, and we are committed to quality service! Just read our Google Reviews to see for yourself!

When it comes to air conditioner questions, we’ve heard them all. Here are some of the most common questions our customers ask.

What is the average life span of an air conditioner?

You can typically expect your AC system to last between 15 to 20 years; however, there are several factors that come into play. Regular maintenance such as replacing your filter every three months and scheduling a seasonal tune-up will keep your air conditioner working its longest and prevent the need for premature AC replacement.

Why is my air conditioner making strange noises?

While air conditioners are designed to make minimal noise while operating, there may come a time when yours starts to produce some funny sounds. The specific noise can be very telling of what the underlying problem may be. A few of the noises you may hear, along with their probable diagnosis, include:

  1. If your unit is making a high-pitched, squealing noise, the issue is usually related to the connector belt, especially if your system is on the older side.
  2. If your system is emitting a buzzing sound, chances are you have loose parts, missing or broken isolation feet, refrigerant leaks, or a malfunctioning compressor.
  3. This noise typically indicates that your system’s bearings have worn down in the air handler motor. These will need to be replaced quickly so your motor doesn’t burn out, leading to more costly repairs or replacement.

What is a ductless mini-split?

A mini-split is a modern approach to keeping your home cool using a room-by-room system rather than a whole-house system. Mini-splits are placed in individual rooms, allowing for personalized adjustability while still offering quiet and effective air conditioning solutions.

How often should I change my air filter?

You should typically plan to replace your air filter every 90 days; however, you may need to replace it as often as every 30 days. High-end filters may claim that they last upwards of six months, but you should factor in your unique home situation. If you have pets, family members with asthma, or children, you should err on the side of caution and replace your filter more frequently.


Schedule AC Services in North County With Sherlock

No matter how large or small the job is, our North County air conditioning service team is prepared to handle it quickly and efficiently. Since 2002, we have worked with thousands of families to help them stay cool, and we would love to work with yours.

From AC repair to replacement, call the experts at Sherlock for trusted air conditioning around North County.

Schedule Service With Sherlock Today!


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Our Service Area

Cardiff, Carlsbad, Carmel Valley, Del Mar, Encinitas, Escondido, Fallbrook, Mira Mesa, Oceanside, Poway, Rancho Bernardo, Rancho Penasquitos, Rancho Santa Fe, San Diego, San Marcos, Scripps Ranch, Solana Beach, Vista

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$69 AC and Furnace System Checkup Keep your AC and furnace running at peak efficiency • Prevent costly breakdowns • Extend the life of your AC and furnace • Inspect your equipment to make sure it’s not leaking dangerous carbon monoxide. Can not be combined with any other offers or promotions.

We Can Help Simplify Your Home's Maintenance!

When you join the VIP Comfort Club at Sherlock Plumbing, Heating & Air, our Carlsbad home service experts will take care of maintaining your home’s most important systems so you can relax and enjoy not having to stress about problems with your heating, cooling, or plumbing!

Top Rated Customer Reviews

See What Your Neighbors Are Saying

Top Rated Customer Reviews

See What Your Neighbors Are Saying

Outstanding experience from start to finish. Neil was on time, professional, and very personable when he came the same day to assess my needs and provide an on-the-spot estimate. He didn't try and pre...

Jeff L.

Extremely pleased with the quick and professional service we received today! Our 14-year-old AC unit went out last night, i called this morning and a technician came out this afternoon. The fix was re...

Christine F.

Sherlock continues to be there for my family when we need them the most. I had a new HVAC system installed May of 2019, since then the service techs have come in for their seasonal inspections and I c...

Nick B.

Anthony, came to inspect the plumbing in my house as well as to drain and refill the water heater. I found him to be very informative and helpful, as well as professional and friendly. I was really ve...

Pam C.

Our water heater started leaking and a call to Sherlock was met with a same day response. Neil came out to explain our options of tank/tankless, gas/electric. He walked us through the pros and cons of...

Lorraine G.

This has been the best experience with a company we have ever had in our 50 plus years of marriage. From Vincent to Eric and his whole crew this was a very difficult project for everyone. They handled...

Roy S.

Hands down, these guys are the best. I had bids from three other highly rated HVAC companies in North County and none of them came close to the technical knowledge and professionalism of Sherlock. My ...

Kent C.

Sherlock is the coolest! As always, Yelpers are right on. Basing my picks on high stars and number of reviews, I called four companies. Right off the bat, I knew one company wasn't even an option due ...


This is a review not so much for Sherlock, but for Fred Radtke - the young man that came and got my heater working. He not only installed a new thermostat on the spot that is easier to read - and repl...

Barbara W.

Eric came out to fix my non-working air conditioner. He was professional, very nice, honest, knew his stuff. He had to over to Escondido to get the proper part, and returned on same afternoon, put the...

Seasides C.

Justin the sales agent, was great, very patient and responsive. The gentlemen who came in to work on the installation were great, explained everything and very respectful and clean. I had the unfortun...

M A.

Jared was our inspector and he showed up on time with a 30 min courtesy call. He was efficient and gave us an honest opinion of what was working and what needed to be repaired or replaced or serviced ...

Erica B.

Ahhh! Cool and comfortable in our house now. Thank you to the awesome guys who installed this high quality equipment. Good to have Costco stand behind them, too.

Susan F.

There is a reason this place has nothing but five stars. They earn it! I have had no AC in the house and was procrastinating on getting it fixed due to the cost and lack of need most of the year. I wa...

Wendy H.

JR, JoJo, and Eric came to my condo yesterday to install my HVAC system and Heat Pump. They were very meticulous and on task for the whole installation, and kept me informed as to what they were doing...

George M.

I had a great experience with Sherlock, from start to finish! Justin met with me and spent a few hours walking me through the current condition of my system and what Sherlock can offer. I had budget l...

Vinay R.

My experience with Sherlock Heating & Air has been amazing from the start when I first got my new heating & air conditioning system!!! They know how to deliver customer service!! They are hone...

Deborah L.

The tagline for Yelp's 5 star rating of "Woohoo! As good as it gets!" is 100% fitting for the work and professionalism of Jared and Enoch. They were courteous and upfront with the entire job. I found ...

Bryce H.

Just had an ACHP service done yesterday on the two units in my home. Their service rep was Jared Pratt. This guy was great! He took the time to do it right and to explain to me (every step of the way)...

Doug F.

I came to Sherlock by way of the Nest website--checked out the Yelp reviews and then made the call. Eric M., the technician who installed my 3rd gen Nest Learning Thermostat was courteous, knowledgeab...

Nancy S.

Buying HVAC for an entire house is not an investment to be undertaken without some research. It's probably going to cost more than $15K and will require a crew of techs working in your house for sever...

Brian G.

FINALLY an AC & heating business I can trust!!! Woo-Hoo!!!! If Sherlock Heating and Air Conditioning isn't a small family business, you would think they are! They are so kind, meticulous, honest, ...

Tanya S.

If my wife and I could give 6 stars we would! Carlos, Jojo and Joe installed our new HVAC system today, 31st October 2016. Started the day at 8AM and ending roughly around 615PM. I was impressed by th...

Nathan R.

Called Sherlock based on reviews here, as we've had less than stellar experiences with other local area HVAC companies. They scheduled an appointment within a couple days, the guy who came out could n...

Hi D.

Been using Sherlock for a couple years. Jared and Eric came out for the yearly check/tune-up. Both were super friendly, informative, timely, and put on shoe protectors whenever they came in the house!...

Sarah E