Expert Advice On Improving Your Home

10 Best HVAC Companies in San Marcos, CA

Get matched with a top local pro.
Join over 640 homeowners that have gotten a free quote in the past week.

Written By Bradford Cuthrell

Last Updated February 2024

On average, 55% of the energy used in American homes is for heating and cooling, according to the Department of Energy. In San Marcos, a significant amount of your energy spending likely goes toward cooling your home in the summer. On average, residents spend $130 every month cooling their homes.

Browse our guide to the top HVAC companies in San Marcos to find the best one for you and your home. Our topic contractors can help you reduce your bills while still staying comfortable.

Top 10 Best HVAC Companies in San Marcos

John Stevenson Plumbing, Heating & Air Conditioning, Inc.

John Stevenson Plumbing, Heating & Air Conditioning, Inc. Logo

Our Rating

User Rating

Write a Review
2748 Loker Ave W, Carlsbad, CA 92010 (760) 276-6690 johnstevensonplumbing.com

Reliable customer support

Free quote

Informative resources

Clear pricing policy

Prompt service delivery

Services Offered

Maintenance
Filtration
Furnace installation
Ductless
Emergency services
Ac installation
Indoor air quality
Ac repair
Inspection

Action Air Conditioning & Heating

Action Air Conditioning & Heating Logo

Our Rating

User Rating

Write a Review
130 Bosstick Blvd, San Marcos, CA 92069 (760) 309-5790 actionac.net

Reliable customer support

Free quote

Clear pricing policy

Informative resources

Services Offered

Ductless
Furnace installation
Duct cleaning
Ac installation
Maintenance
Indoor air quality
Emergency services
Ac repair
Furnace repair

We Care Plumbing, Heating and Air (fka Oak Island Heating & Air Conditioning)

We Care Plumbing, Heating and Air (fka Oak Island Heating & Air Conditioning) Logo

Our Rating

User Rating

Write a Review
445 Ryan Dr # 101, San Marcos, CA 92078 (760) 334-5747 oakislandac.com

Reliable customer support

Informative resources

Prompt service delivery

Clear pricing policy

Free quote

Services Offered

Zoning systems
Filtration
Ac repair
Furnace installation
Ac installation
Ductless
Indoor air quality
Maintenance

My Guy Heating & Air

My Guy Heating & Air Logo

Our Rating

User Rating

Write a Review
934 S Andreasen Dr Suite H, Escondido, CA 92029 (760) 364-8885 myguyairsd.com

Clear pricing policy

Informative resources

Reliable customer support

Free quote

Services Offered

Furnace installation
Ductless
Emergency services
Indoor air quality
Filtration
Maintenance
Ac repair
Ac installation
Inspection

Major League Comfort Systems

Major League Comfort Systems Logo

Our Rating

User Rating

Write a Review
4055 Oceanside Blvd space u, Oceanside, CA 92056 (760) 945-0975 majorleagueac.com

Prompt service delivery

Clear pricing policy

Free quote

Informative resources

Reliable customer support

Services Offered

Inspection
Maintenance
Furnace repair
Ac repair
Indoor air quality
Furnace installation
Filtration
Ductless
Ac installation

Air Cooling & Central Air Repair Inc.

Air Cooling & Central Air Repair Inc. Logo

Our Rating

User Rating

Write a Review
404 Encinitas Blvd apt 431, Encinitas, CA 92024 (916) 469-0077 millairhvac.com

Clear pricing policy

Services Offered

Boiler installation
Ductless
Ventilation
Duct cleaning
Maintenance
Radiant heating
Ac repair
Boiler repair
Filtration
Ac installation
Furnace repair
Furnace installation
Emergency services

Champion Air Conditioning & Heating

Champion Air Conditioning & Heating Logo

Our Rating

User Rating

Write a Review
120 N Pacific St STE A9, San Marcos, CA 92069 (760) 736-4100 championairsd.com

Free quote

Clear pricing policy

Prompt service delivery

Reliable customer support

Services Offered

Indoor air quality
Furnace repair
Ac installation
Ductless
Ac repair
Maintenance
Furnace installation

MAX AIR HVAC

MAX AIR HVAC Logo

Our Rating

User Rating

Write a Review
1145 Industrial Ave # A, Escondido, CA 92029 (888) 760-2021 maxairsocal.com

Free quote

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Filtration
Ductless
Ac installation
Furnace installation
Maintenance
Indoor air quality
Ventilation

Prestigious Heating & Air Conditioning Llc

Prestigious Heating & Air Conditioning Llc Logo

Our Rating

User Rating

Write a Review
2395 Caringa Way F, Carlsbad, CA 92009 (760) 465-2878 prestigioushvac.com

Clear pricing policy

Free quote

Prompt service delivery

Reliable customer support

Services Offered

Inspection
Ventilation
Furnace installation
Emergency services
Maintenance
Duct cleaning
Ductless
Filtration
Ac installation

Alanis Air

Alanis Air Logo

Our Rating

User Rating

Write a Review
1937 Julie Dawn Pl, Escondido, CA 92026 (760) 270-8618 alanisair.com

Reliable customer support

Informative resources

Free quote

Clear pricing policy

Services Offered

Ac repair
Ductless
Boiler installation
Radiant heating
Ac installation
Filtration
Emergency services
Furnace installation
Furnace repair
Maintenance
Duct cleaning
Indoor air quality
Boiler repair
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

An HVAC system that's not working properly or past its lifespan likely needs professional attention for maintenance or replacement. Watch for these signs that your system needs service:

  • Corrosion, cracking, or rust
  • Strange noises when turning on
  • Frequent breakdowns and need for repairs
  • Refrigerant leaks
  • Higher than normal energy bills
  • Poor air circulation or uneven heating/cooling
  • Temperature control issues or thermostat malfunctions
  • An HVAC system that's over 15 years old

Schedule an inspection if you notice any of these problems. A local technician can evaluate your system, identify problems, and determine whether you need repairs or a new HVAC unit.

Cost of HVAC Installation and Maintenance in San Marcos

What you pay for HVAC installation or maintenance is determined by your system style. Common HVAC unit styles include the following:

  • Split or mini-split: If your home lacks the right ductwork for central heating or air, you probably have a split HVAC system. Split or mini-split systems consist of indoor units that regulate the temperature in individual rooms. These interior units are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system performs similarly to a standard split system, but has the capacity to draw on either electricity or gas for power.
  • Heat pump: Heat pumps move warm and cool air between your home and the outside. These systems don't generate their own heat or AC, so they work more efficiently in more temperate climates and may not be as effective during San Marcos' hot summers.
  • Packaged heating and air: Packaged HVAC systems are a smart choice for smaller houses. They have a single heating and cooling unit, typically in an attic or basement. This unit is often small, energy-efficient, and easy to maintain.

HVAC maintenance costs vary based on the specific services required. HVAC systems can be complex and potentially require a number of services. Fees for typical jobs are as follows:

HVAC Unit TypeCost
Split$1,957-$4,990
Hybrid Split$3,966-$7,307
Heat Pump$3,071-$31,292
Packaged Heating and Air$257-$428

Ways to Save Money on HVAC Costs

Fixing your HVAC by repairing or replacing parts when needed is important, but can be costly. Luckily, there are steps you can take to slow the wear and tear on your system.

  • Keep your system clean. Cleaning your grills, indoor evaporator coil, ductwork, and condenser fan blades regularly helps your HVAC system work efficiently and lowers the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system when it starts to look dirty.
  • Monitor for potential problems. Monitoring your system for problems — for example, by checking your thermostat and energy bills routinely — helps you get ahead of problems before they get too expensive.
  • Change filters regularly. Air flows best through your HVAC system when you change out or clean the filters every 1–3 months. Also try not to let debris pile up on the external sections of your HVAC.
  • Change the position of your blinds seasonally. During winter, leave your blinds open so your home benefits from passive solar heat. In summer, keep blinds shut to block out heat. Doing both decreases the amount of work your HVAC system must perform.
ServiceCost
Filter Replacement$64-$171
Condensor Cleaning$1,285-$3,855
Thermostat Repair$86-$214
Ductwork Cleaning$411-$1,028

How To Choose a Local HVAC Company

Knowing what to look for in an HVAC company is crucial for a successful project. Look for an experienced, licensed contractor that can offer you peace of mind and make sure your system provides reliable heating and air conditioning for your home.

Compare Multiple Bids

Contact at least three HVAC providers for quotes. Explain the issues and have specialists visit to inspect your HVAC system if possible. Compare the contractors' explanations, solutions, estimated costs, timeframes, and warranties. Avoid providers that pressure you or demand payment upfront.

Check Credentials

When picking an HVAC provider, choose one with technicians that have the appropriate training, licenses, and experience. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled by the state.

HVAC contractors in California must be licensed by the Department of Consumer Affairs Contractors State License Board (CSLB). HVAC contractors are considered specialty contractors by the CSLB. All contractors are required to have four years of experience and to be bonded. Contractors with employees must also meet insurance requirements. Checking reviews on the Better Business Bureau (BBB), Yelp, Google Reviews, and similar sites can assist your decision as well. Choose a provider with great reviews and reports of positive experiences from customers.

Understand Work Details

It’s important to know what the work process is going to look like. For HVAC repairs, the company should list the exact parts that need replacement and why. Confirm that your technician will clean and test your system afterward to guarantee everything is working correctly. When replacing your HVAC, ask the contractor to provide details on the new brand, features, estimated installation time, model, and energy efficiency. Before signing a contract, make sure you understand the process your provider will use to select the correctly sized system for your home and what the cost will be.

Compare Warranties

Good HVAC companies offer warranties on service and installations. The more complete the coverage, the better. Review warranty details between providers and pick the one that offers the best protection for the fairest price.

Get Quote in Writing

Get written quotes before beginning any HVAC work. The quote should cover costs for both labor and materials. Review all terms carefully before signing.

Frequently Asked Questions About HVAC in San Marcos, CA

Normally, your HVAC system should be inspected twice a year. After that inspection, your technician will tell you what services are needed. You should also have your system inspected and serviced if you start to notice any issues, such as strange noises, leaks, or unusual smells. If your home has ductwork, it should be serviced every few years.

The best times of the year to have an HVAC inspection are the spring and fall. Technicians are less busy during these times, which makes it easier to get an appointment. This also helps get your system ready for the summer and winter, which is when it normally sees the most use.

You can save energy during the summer by reducing the amount of power your HVAC system uses to keep your home cool. Keep your thermostat temperature as close to the outside temperature as is comfortable, and try to avoid making drastic changes in temperature all at once. Keep your roof well-maintained and seal any window or door leaks to help keep cool air in. Similarly, ensure that your attic is well ventilated to avoid trapping excess heat in your home.

For a 2,000-square-foot home, you'll want a furnace that's between 50,000 and 80,000 BTUs (British thermal units). In San Marcos, you may be able to make do with a lower-capacity furnace.

For a 2,000-square-foot home, you'll also want an air conditioning unit with between 2.5 and 5 tons of capacity. In San Marcos, you'll likely look for something on the higher end of this range. Typically, if your home is larger than 1,000 square feet, central air will be more effective than window air conditioning units.

Your HVAC company might have financing options through a third-party lender, or you might be able to obtain your own loan. It's smart to discuss payment options with your HVAC company and a financial advisor to make sure that you find the best option for you.

There are several ways you can make your HVAC system more energy-efficient:

  • Make sure your air ducts remain clean, and clean or change your air filters on a regular basis.
  • Have regular inspections to take care of issues as they come up.
  • Keep your attic well-ventilated and make sure all doors and windows are well-sealed.
  • Install a smart thermostat. If you aren't able to purchase one, try to keep the temperature indoors as close to the outside temperature as is comfortable.
  • When replacing part of your system, explore Energy Star-certified or other environmentally friendly options.

Other San Marcos, CA Home Services