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Trusted handyman services

Heating & Air Conditioning

Installation, Repair & Maintenance

Marin / Sonoma / Napa / Solano

PRECISE + COST EFFECTIVE

LICENSED + BONDED  + INSURED

PROMPT + EFFICIENT

Reliable comfort starts with trusted HVAC professionals who understand the importance of a properly working heating and cooling system. Dave Andrews and Raul Torres of STAT Heating & Air in Santa Rosa, CA, bring over 20 years of combined experience to every project, delivering dependable, efficient solutions for residential and small commercial clients. From air conditioning installation to heating installation, we handle every job with precision and care. We install most brands of systems, including central air installation, ductless mini-split installation, and heat pump installation. We excel in helping our customers choose the right system for their space, ensuring each design is sized correctly and configured for maximum performance. Whether it’s a new construction project, a system replacement, or an energy-efficient upgrade, we tailor every solution to your comfort and budget.

When problems arise, we’re ready to restore your system quickly. We provide professional air conditioning repair, heating repair, and heat pump repair for all brands. We stock standard replacement parts for faster service and can order specialized components if needed.

For emergencies, our team offers rapid response, because we know that heating and cooling issues can’t always wait.

Preventive care is also a core part of what we do. With our air conditioning maintenance and heating maintenance programs, customers can count on reliable system performance through every season. Regular maintenance visits promote efficiency, extend equipment life, and prevent costly breakdowns.

In addition to comfort control, we specialize in air duct installation and air duct repair. Our technicians design and install custom ductwork systems and provide sealing or insulation to ensure optimal airflow and cleaner indoor air. With STAT HVAC, you can expect transparent pricing, free estimates, and satisfaction guaranteed on every service. Our EPA-certified technicians deliver professional results with every visit. For dependable HVAC solutions in Santa Rosa, CA, contact us today to schedule your free estimate or service appointment. Your comfort is our priority—call us now to get started.

HERE WHEN YOU NEED US IN SONOMA  ·  MARIN  ·  NAPA COUNTIES     – 

HERE WHEN YOU NEED US IN SONOMA  ·  MARIN  ·  NAPA COUNTIES     – 

 Air Conditioning Repair • Air Conditioning Maintenance • Central Air Installation • Ductless Mini Split Installation • Air Duct Repair

Heat Pump Installation • Heat Pump Repair • Heating Maintenance • Heating Repair • Gas Furnace Installation • Gas Furnace Repair • Dual Fuel Systems

Is a Mini Split Right for you?

Converting a garage, basement or attic into an extra living space? Ductless systems make adding comfort easy without the need for ductwork or upsizing your current system to account for the additional load.

PROS

Easy Installation / no ductwork required

Energy efficient with zone control

Quietier & safer than other options

Long-Term Savings!

CONS

Less Effective Ventilation

Aesthetic Visual Disruption

Best Served in Less Than 550 ft²

What is a ductless mini-split system?2026-05-23T02:10:41+00:00

A ductless mini-split system is a heating and cooling system that doesn’t require ductwork. It consists of an outdoor unit and one or more indoor air handlers that deliver conditioned air directly into specific rooms or zones.

How much does it cost to install a mini-split system?2026-05-23T02:08:29+00:00

The cost of installing a mini-split system varies depending on the number of zones, system size, and installation complexity. Single-zone systems are more affordable, while multi-zone systems cost more but provide whole-home flexibility. A professional estimate is the best way to determine exact pricing.

Where are mini-split systems typically installed?2026-05-23T02:08:05+00:00

Mini-splits are ideal for:

  • Homes without existing ductwork
  • Room additions or garages
  • Older homes in Marin or Sonoma County
  • Areas with uneven heating or cooling

They can be installed in individual rooms or throughout an entire home.

How long do mini-split systems last?2026-05-23T02:07:04+00:00

With proper installation, regular service and maintaining a clean filter, the average lifespan of a mini-split is 8-20 years:

  • Budget brands 8-15 years
  • Mid-tier 12-18 years
  • Premium brands 15-20+ years

Heating Repair

No heat? Don’t wait. We provide responsive heating repair throughout Marin County to restore your system quickly and safely.

How do I know if my HVAC system needs repair?2026-05-23T02:12:25+00:00

If your system is making unusual noises, not heating or cooling properly, cycling on and off frequently, or causing higher energy bills, it likely needs repair. Addressing issues early can prevent more expensive problems later.

How often should I service my HVAC system?2026-05-23T02:12:54+00:00

Most HVAC systems should be serviced at least once per year, but twice a year (spring for AC and fall for heating) is ideal. Regular maintenance helps improve efficiency, reduce breakdowns, and extend system life.

What is the average lifespan of an HVAC system?2026-05-23T02:13:17+00:00
There is no ‘one’ answer. With proper installation, regular service and annual filter replacements, the average lifespan of an HVAC system:
  • Standard efficiency (80% AFUE) furnaces: 20-25 years, sometimes up to 30
  • High efficiency (90+ AFUE) furnaces: generally 15 years, sometimes up to 20
  • Conventional split heat pump systems: 18-20 years
  • Mini splits: 8-20 years; budget brands 8-15 years, mid-tier 12-18 years, and premium brands 15-20+ years
Should I repair or replace my HVAC system?2026-05-23T02:17:03+00:00

Most properly installed HVAC systems will see you through 15 years, unless there is an obvious flaw to the heat exchanger, which could be possibly due to incorrect installation. Unfortunately, the newest high efficiency furnace we’ve replaced due to incorrect installation was just 5 years, but this should not be the norm. 

What size HVAC system do I need for my home?2026-05-23T02:17:41+00:00

The right system size depends on your home’s square footage, insulation, layout, and climate. An improperly sized system can lead to inefficiency and uneven temperatures, so a professional load calculation is essential.

Why is my energy bill suddenly higher?2026-05-23T02:18:17+00:00

A spike in energy bills can be caused by a struggling HVAC system, dirty filters, duct leaks, or aging equipment. A system inspection can identify inefficiencies and help reduce monthly costs.

How can I improve my home’s indoor air quality?2026-05-23T02:18:47+00:00

You can improve air quality by regularly replacing filters, maintaining your HVAC system, sealing duct leaks, and adding air purification or filtration systems.

How long does it take to install a new HVAC system?2026-05-23T02:36:47+00:00

Most HVAC installations can be completed in one day, depending on the complexity of the system and the home. Larger or more customized installations may take longer. Really it depends on the system and components. It can take longer to install a system correctly rather than ignoring hidden problems that will will cause comfort issues or cause big issues for you down the road. but generally:

  • Furnace installs in 1 day
  • Furnace and AC installs in 1-3 days
  • Typical heat pump system 1-3 days
  • Typical HVAC system and ducts 3-5 days

We’re here to help

Reliable comfort starts with the right team. STAT Heating & Air provides professional HVAC services throughout Marin, Sonoma and Napa Counties, delivering fast response times, expert workmanship, and long-term system performance.
  • Same-Day HVAC Service Available

  • Licensed, Bonded & Insured

  • High-Efficiency Systems

  • 24/7 Emergency Repairs

“Seamless Installation”

“I had new HVAC system installed by the STAT Heating & Air. It was a seamless installation. The crews lead by Dave’s direction did the superb job. I am living in my warm home in this winter!”

Sumi Hirose

“Fantastic”

“David and his team are simply fantastic!”

Matthew Everson

“Honest”

“Great communication, honest, knowledgeable and quick! He even came by on New Year’s Day to get my heat on. Thanks!”

Stephanie Carrillo

“Good Price – Good Work”

“Dave was on time came back twice to work on my heat pump good price honest person and good work Lynn”

Lynn N.

“Can’t Be Beat”

“Third company to come out. They diagnosed quicker than others, gave a free estimate, and the quote saved me a lot more then the sponsored mainstream company and a good amount more then the smaller company who had a hard time diagnosing the problem. Now you can’t beat that. Better pricing and more knowledge and experience in one company.”

Johnny M.

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