When you have a broken heater or air conditioner it can interrupt your entire home life.  At Sherlock Heating and Air Conditioning, it’s our goal to get your home heating and cooling system repaired and back to working order so that you can go on with your normal routine.

In addition to service calls requiring immediate service, our highly trained and certified specialists are also available to handle your routine heating and cooling maintenance needs.  No matter what the job, our specialists will work with you to schedule your appointment during a convenient time and handle the repairs professionally and efficiently.

Sherlock Heating and Air Conditioning is known not just for quality work, but also for service that makes you want to tell a friend.  It’s why we enjoy so many referrals from happy clients!

Read heating and cooling service and repair reviews from our customers.


The problem with maintenance is that most of us never give our heating and cooling system a second thought when it’s functioning properly.  No one plans for a system failure, but the truth is, many malfunctions could be prevented with simple routine maintenance on the furnace and AC.

That’s why we encourage every client to join our VIP Comfort Club.  This maintenance membership program includes one yearly furnace service and one air conditioning service so that your home comfort system receives the care it needs to keep it running efficiently for longer.  In fact, regularly maintained units are proven to be more efficient and longer-lasting than their neglected counterparts.

Other benefits include priority scheduling and special seasonal promotions.  Let us take the hassle out of maintenance!  Ask your technician about our VIP Comfort Club.

Learn more about our VIP Comfort Club.

Replacement and Installation in San Marcos, California

If you’re in need of a new home comfort system, Sherlock Heating and Air Conditioning has you covered.  We carry multiple lines of top quality equipment and are sure to have something that fits your needs, budget, and desired benefits.

While a malfunctioning home comfort system may necessitate a replacement, many homeowners are actually electing to voluntarily upgrade to more efficient, quiet, and cost-saving equipment.  These newer units run more efficiently, allowing you to save money each month on your power bill.  In the long run, many homeowners agree that the initial investment in a new system is more than offset by the long term energy savings they experience.

To get the process started, we’ll send one of our experienced comfort consultants to do a free in home evaluation.  Together, you’ll design a comfort solution based on your needs, budget and desired benefits.  The entire process is completely transparent, and we pride ourselves on ensuring that you know exactly what the process entails.

After you select the perfect home comfort system, our installers will schedule the installation date.  Our courteous and professional installers are all drug screened, background checked, licensed, and insured.  Our past clients regularly comment on the high level of service they received from our installation team, so you know you’ll be in good hands.

Once we’re finished, our installation specialists will clean up the job site and offer a full training for the homeowner.  After a few weeks, we’ll check in with you to ensure that your system is running perfectly.

We’re committed to your satisfaction throughout the entire process.

Find out more about installation and replacement.

Financing, Government Programs and Payment Plans

We don’t want cost to stand between you and a more comfortable home.  Our specialists can help you to find a financing plan to meet your budget so that you can have the perfect comfort system for your home.  We offer multiple financing options to suit all of your payment needs.

In addition, we’re well-versed in government programs that could save you additional money through tax credits, rebates and incentives, and flexible payment options.  Sherlock Heating and Air Conditioning is a leading contractor for Energy Upgrade California and the HERO Program.  Our installation technicians handle more of these jobs than just about anyone in Southern California.

We can help you every step of the way by showing you what you qualify for, what sort of benefits you can expect, and taking care of all the testing and paperwork

Find out more about our payment and financing plans to help you purchase the home comfort system of your dreams.

Our Happiness Guarantee

At Sherlock Heating and Air Conditioning, the happiness of our clients is our primary concern.  We want to ensure that each experience is one that leaves you raving to friends and family about what a great job your technician did, and just how friendly and accommodating we were.  This is our mission and our commitment to you.

If for any reason you are not happy with any aspect of our work, we’ll make it right.  Period.

Read more about our happiness guarantee.