Our Service Areas

San Rafael HVAC — AC Repair, Furnace Service & Heating

Hassler: San Rafael's Home Comfort & Savings Experts

Taking care of your home in San Rafael, California can get expensive. Saving money with high-efficiency HVAC solutions can help! Hassler Heating and Air Conditioning can help you save energy and money while keeping you comfortable throughout the year.

From the Peacock Gap Golf Club to the Terra Linda-Sleepy Hollow Divide Northern Preserve and everywhere in between, Hassler can make your home more energy efficient and comfortable. Regardless of whether you live next to McInnis Park, close to the Dominican University of California, or even along San Rafael Bay, your home will soon be comfortable year-round thanks to Hassler Heating and Air Conditioning.

Schedule service at your San Rafael home today when you call Hassler at (510) 255-1550.

Air Conditioning Repair in San Rafael

San Rafael's climate is genuinely unusual. Depending on where you live, your home may bake in dry inland heat near Terra Linda or Lucas Valley, while a neighbor just a few miles west toward the bay sits under a marine layer that barely lifts until afternoon. That temperature and humidity variation within a single zip code creates AC problems you simply don't see in more uniform climates, and diagnosing them correctly requires technicians who actually know this area.

At Hassler Heating and Air Conditioning, we've been servicing air conditioning systems throughout San Rafael and Marin County long enough to understand exactly what the local climate does to equipment. Whether your system is struggling with the coastal humidity rolling in off San Rafael Bay or burning out its components trying to handle peak inland heat in the hills, we know what to look for and how to fix it.

AC Problems We Commonly See in San Rafael Homes

Systems That Cycle On and Off Without Cooling Effectively

This is the signature complaint we hear from homeowners in the cooler, foggier parts of San Rafael. When ambient temperatures fluctuate significantly throughout the day — cool mornings, warm afternoons — AC systems that weren't properly sized for the home's actual heat load end up short-cycling. The system runs in brief bursts, never completing a full cooling cycle, never adequately removing humidity, and wearing out components faster than it should. This is a sizing and configuration problem as much as a mechanical one, and we address both.

Refrigerant Issues Worsened by Temperature Swings

The dramatic daily temperature swings common in inland San Rafael — from cool mornings to 90-degree afternoons in neighborhoods like Marinwood and North San Rafael — put unusual stress on refrigerant lines and fittings. Expansion and contraction cycles over years of use can open small leaks that would never develop in a more stable climate. Symptoms include ice on the refrigerant lines, a system that blows room-temperature air, and steadily worsening performance over a season. Our EPA-certified technicians identify and repair leaks before recharging to factory specifications.

Corrosion and Salt Air Damage

Homes close to San Rafael Bay and the Marin waterfront deal with an accelerant that inland homeowners don't: salt air. Condenser coils, electrical contacts, and cabinet components on outdoor units corrode faster in a coastal environment. If your outdoor unit looks rough and your system has been underperforming, corrosion may be the underlying cause rather than a single failed component.

Capacitor and Contactor Failure

These small electrical components are responsible for starting and running your outdoor condenser, and they fail more often than anything else in an AC system. When they go, your system either won't start at all or will run briefly and shut down. Both are typically same-day repairs.

Additional AC Repairs We Handle Throughout Marin County:

Evaporator and condenser coil cleaning and repair
Blower motor diagnosis and replacement
Condensate drain line clearing
Thermostat and smart control troubleshooting
Ductwork leaks and airflow balancing
Control board and electrical diagnostics

AC Brands We Service in San Rafael

Our technicians are trained and experienced on all major residential AC brands, including Carrier, Lennox, Trane, Daikin, Mitsubishi Electric, Rheem, Goodman, and American Standard, among others. Whether your home has a newer high-efficiency system or an older unit that's been running since the house was built, we have the diagnostic experience and parts access to service it correctly. We'll always tell you honestly when a repair makes sense and when the cost of keeping an older unit running no longer adds up.

Same-Day AC Repair in San Rafael and Throughout Marin County

A broken AC in the middle of a Marin heat event isn't something you want to sit on. Hassler Heating and Air Conditioning offers same-day AC repair service throughout San Rafael, and we extend that coverage across Marin County as well. Call us at (510) 255-1550 and we'll work to get a technician to your home the same day. Most common repairs, such as capacitor replacement, refrigerant recharge, contactor failure, are completed in a single visit from our fully stocked service vehicles.

Air Conditioning Installation & Replacement in San Rafael

When repair no longer makes sense — whether your system is aging past 15 years, facing a major component failure, or simply can't handle your home's cooling needs — Hassler Heating and Air Conditioning installs modern, properly sized replacement systems throughout San Rafael and Marin County.

We install central air conditioners, heat pumps, and ductless mini-split systems from leading manufacturers. For the many older San Rafael homes that were built without ductwork, ductless systems are often the cleanest and most cost-effective path to reliable cooling. For homes with existing forced-air systems, a central AC or heat pump replacement can dramatically improve both performance and efficiency compared to aging equipment.

Every installation includes a load calculation to ensure correct sizing, full removal and disposal of your old system, all required permits, and a complete commissioning and walkthrough before we leave. We'll also identify any available California utility rebates or federal tax credits that may apply to your new equipment — incentives for high-efficiency systems and heat pumps in particular have been substantial in recent years.

Call (510) 255-1550 or contact us online for a free in-home AC installation estimate in San Rafael.

The Hassler Difference

Hassler knows that getting the job done right today will lead to customers being our biggest advocates tomorrow.

Exceeding Expectations

Our philosophy on customer service is to not only meet expectations but to exceed them. Whether it is your home heating and cooling, improving your indoor air quality, or scheduling a home energy assessment, we are committed to over-delivering throughout your entire journey with Hassler.
Leadership
From our newest team member on up to our leadership and ownership, we are committed to producing the highest level of workmanship - all in an efficient manner. We accomplish this through better training, education, planning, and leadership across all the products and services we provide.
Accountability

We are committed to holding ourselves and each other accountable to integrity, customer satisfaction, and peak performance. We are unwavering in our commitment to not only talk about the solution, but to be a part of it.
Lasting Relationships
Developing long lasting relationships is at the core of our organization. When interacting with a customer or team member, we are committed to building mutual trust and respect. Our reputation is the foundation of the company, and at the end of the day, our word is all we have!
Growth

Through a dedication to training, education and leadership, we will continue to grow to remain the leading HVAC and home performance company in Contra Costa, Alameda, and Marin counties. We are continually honing our craft and challenging ourselves to improve who we are as an organization for what we can become.
Go Green
We care deeply about the changing climate here in California, and want to help other Californians reduce their impact on the environment. Hassler places an emphasis on embracing “Green” technologies and processes whenever possible, and reducing energy use.

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Furnace Repair & Heating Services in San Rafael

San Rafael winters are mild by most standards, but the damp cold that settles into Marin County home, particularly those closer to the bay and the low-lying neighborhoods around McInnis Park, has a way of making a malfunctioning furnace feel more urgent than the calendar might suggest. Hassler Heating and Air Conditioning provides expert furnace repair and heating services throughout San Rafael, with the same commitment to same-day availability and upfront pricing that defines everything we do.

Whether your furnace is failing to ignite, cycling on and off without reaching temperature, producing uneven heat across your home, or making sounds it has no business making, our technicians diagnose the root cause and fix it right. We service all major furnace brands and carry the parts for the most common repairs on our service vehicles.

If your furnace is reaching the end of its service life, we also handle full furnace replacement and new heating system installation — including high-efficiency gas furnaces and heat pumps that qualify for current rebate programs. Contact us online or call (510) 255-1550 to schedule furnace service in San Rafael.

Frequently Asked Questions: HVAC Service in San Rafael

How much does AC repair cost in San Rafael?

AC repair costs in San Rafael generally run between $150 and $650 for most common repairs. Marin County labor rates and the added complexity of servicing coastal homes — where corrosion and salt air exposure can complicate repairs — mean pricing sits at the higher end of the Bay Area range. Here's a general breakdown:

Repair Type	Typical Cost Range
Capacitor replacement	$150–$325
Contactor replacement	$150–$300
Refrigerant recharge (with leak check)	$225–$550
Blower motor replacement	$325–$650
Condensate drain cleaning	$100–$225
Compressor replacement	$1,300–$2,600+

Do you service AC units throughout Marin County?

Yes. While San Rafael is our primary service area in Marin, Hassler Heating and Air Conditioning services AC systems throughout the county. Whether you're in San Rafael, Novato, Mill Valley, Corte Madera, Fairfax, or the unincorporated communities in between, we have technicians familiar with the range of housing stock and climate conditions across Marin. Call (510) 255-1550 to confirm availability in your specific area and get same-day service on the schedule.

What's the difference between a heat pump and a traditional furnace for a San Rafael home?

A furnace generates heat by burning gas, while a heat pump moves heat from outside air into your home — and reverses the process in summer to cool it. For San Rafael's climate specifically, heat pumps are an increasingly compelling choice: Marin County's mild winters mean temperatures rarely drop low enough to challenge a heat pump's efficiency, which is where they can struggle in harsher climates. A heat pump effectively replaces both your furnace and air conditioner in a single system, and modern units qualify for significant federal tax credits and California utility rebates. That said, homes with existing gas infrastructure and a preference for the stronger heat output of a furnace on the coldest nights may still find a gas furnace plus separate AC to be the right answer. Hassler Heating and Air Conditioning will walk you through the tradeoffs honestly during your in-home estimate.

How do I improve air quality in my San Rafael home?

Marin County presents a specific set of indoor air quality challenges. Wildfire smoke has become a seasonal concern in recent years, marine air brings elevated humidity that can promote mold and dust mites, and older San Rafael homes often have aging ductwork that hasn't been cleaned or sealed in years. The most impactful improvements typically include a high-efficiency air filtration system or media filter upgrade, a whole-home air purifier, UV germicidal treatment installed in the air handler, and a duct inspection and sealing to ensure you're not circulating contaminants from unconditioned spaces. Hassler Heating and Air Conditioning can assess your current setup and recommend the right combination of solutions for your home's specific conditions.

Should I repair or replace my aging HVAC system in San Rafael?

The honest answer depends on the age of the equipment, the nature of the failure, and what a replacement would actually cost for your home. As a general guideline: if your system is under 12 years old and facing a single component failure that costs under $500, repair almost always makes sense. If the system is over 15 years old, has needed multiple repairs in recent years, or is facing a compressor or heat exchanger failure, the math usually favors replacement — particularly when you factor in the efficiency gains of modern equipment and the rebates currently available in California. The middle ground — a 12-to-15-year-old system facing a moderately expensive repair — is genuinely a judgment call, and Hassler Heating and Air Conditioning will give you the full picture rather than pushing you toward the more expensive option.

How can I tell if my ducts are losing conditioned air in my San Rafael home?

Duct leakage is surprisingly common and frequently goes undiagnosed for years. Signs that your ducts may be leaking include rooms that are consistently harder to heat or cool than others, higher energy bills without a clear explanation, excessive dust accumulation throughout the home, and a system that runs longer than it should to reach your thermostat setting. Older San Rafael homes — particularly those built before the 1990s — frequently have ductwork that was never designed to modern standards and has developed gaps and disconnections over decades of use. A professional duct leakage test gives you a precise measurement of how much conditioned air you're losing, and duct sealing is one of the highest-return home performance investments available. Hassler Heating and Air Conditioning offers both duct testing and sealing as part of our broader home performance services.

My furnace is making a loud banging noise when it starts up — is that serious?

A loud bang or boom at startup — often called delayed ignition — is one furnace symptom you should not ignore. It happens when gas builds up in the combustion chamber before igniting all at once, causing a small pressure wave. Over time, this can crack the heat exchanger, which is both an expensive repair and a safety hazard since a cracked heat exchanger can allow combustion gases including carbon monoxide to enter your living space. Other furnace noises have their own causes: rattling typically points to loose panels or ductwork, squealing usually indicates a blower motor bearing issue, and persistent clicking that doesn't result in ignition suggests a faulty igniter or flame sensor. Any of these warrant a diagnostic call. Reach Hassler Heating and Air Conditioning at (510) 255-1550 and we'll get a technician out to assess it.

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"Professional, efficient and responsive."
“We highly recommend Hassler Heating and AC. Three years ago, we updated our system with a heat pump. The installers were professional, efficient and responsive.”

- Diane M.
"The company provided great service."
“He quickly identified the problem, took time to explain it, answered my questions and got everything in working order under 2 hours that even included a trip back to El Cerrito to get the right part. He was very courteous and respectful.”

- Veronica A.
"He had us up and running very quickly."
“He had us up and running very quickly and also was able to make some other recommendations for service and maintenance. He was great, and I will continue to use him and his team for maintenance and repairs.”

- Scott L.
"I am so thankful."
“Hassler Heating went above and beyond customer service! My AC unit started smoking and I called to make an appointment and they were able to fit me into their schedule that day!”

- Emily V.
"I also want to commend your work crew."
“They were very efficient as well as pleasant in their interaction with me. They did such a good job that my next-door neighbor, after watching them at work, told me that he has decided to hire your firm to install a new heating system for his house.”

- Marilyn B.
"Very knowledgable."
“Chris just came out and inspected a furnace and ducting for me at a property that clients of mine are purchasing in El Cerrito. He was very knowledgable and was sure to take the time to answer all of my questions thoroughly.”

- Jeffery S.
"We have full confidence."
“We have full confidence that we now have a first class heating system that will serve us well in the years to come. We know in the future we will need to replace our roof mounted air conditioner, and we will confidently call on Hassler to do the job.”

- Tom R.
"Always professional."
“They squeezed a whole lot of equipment into a tiny attic without a single complaint. They also helped with all of the energy-saving rebates . The estimator, installers, and service guys have been great.”

- Sean M.

The Benefits of Choosing Hassler's Heating and AC Services

Hassler Heating and Air Conditioning experts work in all types of San Rafael homes to ensure they have ideal indoor temperatures and high indoor air quality. Concentrating on HVAC installations, service and maintenance, energy efficiency upgrades and insulation, Hassler will increase the health, comfort and value of your home.

Hassler specializes in retrofitting older San Rafael homes and assisting in upgrade projects to ensure every home has a modern, high-efficiency HVAC system. Every solution Hassler offers will help you save on your energy costs while reducing your impact on the environment.

Contact Hassler online or call (510) 255-1550 today to learn more about how we can help you save in your San Rafael home!

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