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San Marcos HVAC Services

In sunny San Marcos, we’re fortunate to enjoy mild temperatures year-round. But while the outdoor temperatures might be beautiful, that doesn’t mean the same is true for your home comfort. From stamping out the winter chill to seeking relief from the summer heat, Sherlock Plumbing, Heating & Air provides the reliable, effective HVAC services you need to ensure top-quality home comfort all year long.

At Sherlock Plumbing, Heating & Air, our team is specially trained on the industry’s most advanced tools and techniques to deliver unparalleled comfort solutions to your family. Give your home the benefit of professional HVAC services from a team you can trust: Contact us to schedule heating, cooling, or indoor air quality services in San Marcos today!

Heating & Cooling Services in San Marcos

With summer highs just squeaking past 80 degrees in July and winter lows averaging 45 degrees in January, San Marcos is considered one of the most comfortable places to live in the United States. Still, residents need high-quality HVAC solutions in order to ensure indoor comfort as well. At Sherlock Plumbing, Heating & Air, our team has the products and services available to make year-round home comfort your reality.

Heating Installation, Replacement, Repair & Maintenance

As temperatures begin to dip in the late fall, it’s critical to have a heating system in place that’s capable of handling your comfort needs. Our team offers comprehensive heating services to keep the winter chill at bay:

  • Heating installation and replacement: Whether you’re looking to install a heat pump, furnace, or ductless mini-split system, our team has the top-quality products you need to install or replace your existing unit.
  • Heating repair: Our team is specially trained to repair virtually any make or model of heating system, using the most up-to-date industry tools and techniques.
  • Heating maintenance: Ensure your heating unit is prepared to handle your home comfort needs all winter long by scheduling routine maintenance with our team.

Don’t delay your home heating needs until your teeth start chattering: Contact us to schedule heating installation, replacement, repair, or maintenance services today!

Air Conditioning Installation, Replacement, Repair & Maintenance

The dry California summer heat can be downright insufferable without the right AC unit in place. Bring high-performance cooling power to your San Marcos home with our comprehensive air conditioning services, including:

  • Air conditioning installation and replacement: Select from our broad range of top-rated AC units from the industry’s most reputable manufacturers and have our team professionally install or replace your existing system.
  • Air conditioning repair: Our team has years of experience delivering long-lasting AC repair services to San Marcos families.
  • Air conditioning maintenance: Catch repair needs early and ensure cooling comfort all summer long by scheduling routine maintenance with our comfort crew.

Get the relief you need from the summer heat by contacting Sherlock Plumbing, Heating & Air to schedule air conditioning services today.

Indoor Air Quality Specialists in San Marcos

Did you know that the air indoors can actually be more polluted than the air outside? According to the Environmental Protection Agency, indoor air pollution can be 2 to 5 times higher than it is outside. When left to accumulate, indoor air contaminants can cause serious discomfort, including nose bleeds, allergies, respiratory issues, mold exposure, bacterial infection, and more. Sherlock Plumbing, Heating & Air provides the indoor air quality services that San Marcos families need to enhance their home comfort, cleanliness, and safety. Our indoor air quality solutions include:

  • Duct cleaning and sealing
  • Air scrubber plus air purification with germicidal UV light
  • Whole-home humidification/dehumidification

Not only do we provide exceptional indoor air quality services, but we further help families prioritize their home comfort and cleanliness by offering the opportunity to join our VIP Comfort Club. By joining the club, members will gain access to:

  • 10% Discount on Air Purification Products
  • Standard 1-inch Air Filter Replacement
  • 10% Discount on HVAC Repairs
  • 5% Discount on HVAC System Replacement
  • Lifetime Warranty on Thermostats
  • 5-Year Warranty on All Repairs
  • Annual HVAC System Safety Check and Maintenance
  • Waived $99 Same-Day Repair Service Fee

Get the high-quality HVAC and indoor air quality solutions your home deserves by choosing the professional technicians at Sherlock Plumbing, Heating & Air. Contact us to schedule service today!

Schedule HVAC Services Today!

No matter what your home comfort needs may be, Sherlock Plumbing, Heating & Air has the team you need to get the job done right. From air conditioning and heating to indoor air quality, our team has the comprehensive comfort solutions you need.

Contact us to schedule heating, air conditioning, or indoor air quality services for your San Marcos home today.

Contact Us Today!

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0% Financing No Payments for 18 months On approved credit. Restrictions apply. All interest is waived if the loan is paid in full during the intro period. If the loan is not paid in full by the end of the intro period, the accrued interest is added to the loan amount and it converts to a 10-year standard installment loan and monthly payments begin.
Free Second Opinion HVAC Service, Repair, or Replacement Call today for more details! Can not be combined with any other offers or promotions.
$250 Off Air Purifier Destroy up to 99% of surface & airborne contaminants in your home. Call today for more details! Can not be combined with any other offers or promotions.
$25 Off Any Plumbing Service Repair Call today for more details! Can not be combined with any other offers or promotions.
$99 Off HVAC Service Fee Take $99 Off HVAC Service Fee When Repair Takes Place At Time Of Diagnostic. Can not be combined with any other offers or promotions.
$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