Welcome to Downing Heating Inc.

Sausalito Heating & Air Conditioning Experts!

Let us be your trusted partner for services, maintenance and installation of HVAC systems.

Serving Marin & Sonoma Counties Since 1984

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Your Trusted Local HVAC Experts!

Serving Homes & Businesses in Sausalito, CA Since 1984


With a history spanning more than thirty years, Downing Heating, Inc. has established itself as a reputable provider of heating and air conditioning services in Sausalito, CA, and surrounding areas. Since our inception in 1984, our unwavering dedication to delivering top-notch service to homes and businesses has solidified our reputation as a trusted name in Marin County and Sonoma County. Our skilled team of HVAC professionals specializes in Sausalito AC repair, furnace repair, and a comprehensive range of HVAC services, ensuring that we are equipped to address all of your heating and cooling needs promptly and effectively.


Whether you are seeking HVAC repair near you or require urgent HVAC assistance, we are at your service. If your AC is failing to cool or your furnace is not providing heat, our experienced technicians will swiftly diagnose the issue and offer dependable solutions to maintain a comfortable environment in your home or business throughout the year. From seamless HVAC installations to emergency HVAC repairs, Downing Heating, Inc. is the premier Sausalito Heating and Air Conditioning contractor for exceptional heating and air conditioning services.

OUR SERVICES

Sausalito HVAC Services

Downing Heating, Inc. provides a dedicated Service Department to address all your Sausalito heating and air conditioning requirements. We service every brand and model.

A/C Services

We offer expert AC repair, installation, and maintenance for all brands and models.

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Heating Services

Keep cozy with our expert furnace repair, replacement, and maintenance services.

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Indoor Air Quality

Experience effortless breathing with our solutions for fresh, healthy air in your home.

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Commercial Services

Our team handles all commercial HVAC repairs and installations for your business.

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Air Conditioning Services

Professional Air Conditioning Solutions


Rely on our highly skilled technicians to deliver complete AC solutions for your home or business. We excel in repairing, maintaining, and installing energy-efficient cooling systems across Sausalito, Marin, and Sonoma County.

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Emergency AC Repair

Emergency AC Repair

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AC Replacement

AC Replacement

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AC Installation

AC Installation

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AC Maintenance

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Ductless Mini Splits

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Thermostats

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Zoning Systems

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Emergency AC Repair

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AC Replacement

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No Tricks, No Obligation, Free Quote!

Avoid the hassle of starting a project with unrealistic guarantees!

Call us today: (415) 485-1011 or (707) 794-6100 visit the contact us page for additional contact info.

Heating Services

Expert Heating Solutions near Sausalito, CA

Trust our expert team for all your heating needs. We provide professional, reliable solutions from furnace repair and maintenance to the installation of high-efficiency systems, ensuring your comfort all winter long in Novato, Marin & Sonoma County.

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Breathe Easier

Sausalito Indoor Air Quality Solutions


Keep your Sausalito family safe with our air purifiers and humidifiers that reduce allergens and ensure clean air at home.

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Local Union No. 104

Sonoma Marin Local 104 Shop

Building Stronger Communities Together

Downing Heating, Inc. is a proud Union Shop with Smart Local No. 104, covering 49 California counties. It includes over 9,000 skilled craftspeople trained in producing, fabricating, installing, detailing, and testing sheet metal products and HVAC. When unions thrive, communities benefit. SMW Local Union 104 fosters job opportunities for members and their families, contributing to stronger and more equitable local areas through construction projects with trained workers, fair wages, and apprenticeship programs.

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Commercial HVAC Services

Our team offers Sausalito Commercial HVAC solutions for businesses of all sizes, from maintenance to full system installation, ensuring smooth operations.

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Whole House Fans

Upgrade to a whole house fan for a quiet, energy-efficient way to cool your home. We expertly install and service these systems to lower your utility bills.

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Automation Issue

Beware of Automated Quotes

There are many variables in the HVAC industry that can affect the price of a project, If you received an estimate within a few clicks, something could be wrong. ​

01.

Automated systems are not able to accurately chose a piece of equipment for a space.

02.

The pricing may be inflated to cover unforeseen conditions that may or may not be present.

03.

There is no site visit to determine conditions of space or efficiency need, etc.

Contact Us for a Free, Accurate Project Estimate.

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Upgrade your equipment & get rebates!

Get Rebates by Plugging into Electrify Marin County

Reduce greenhouse gas emissions by swapping out gas and propane equipment. Did you know that our union offers rebates on new equipment and maintenance services?

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client reviews

Words From Our Customers

John arrives on time after the company called to say he was on his way, and enters the house after pulling protective coverings over his shoes. He lays a protective cloth in front of the heater and neatly sets out his toolkit. He opens the heater and inspects every part, testing some with his tools. He didn't find anything wrong in this visit, but in the last one he found and fixed many problems. He works in a quick and relaxed manner. He chats pleasantly as he works. He writes the company name and date of the visit on the front of the heater so we'll know when he worked on it. He thoroughly describes what he did, what he found, what he recommends going forward. Then he cleans up and picks up his gear, leaving nothing behind, writes his report and finishes his billing. My heater now works perfectly again. I wish all my service technicians were as professional and effective as John is.

Karen R.

★★★★★

My first google review, but these guys were fantastic and knowledgeable. I HIGHLY RECOMMEND DOWNING!!! Of course, my experience with another heating company that starts with Br*** may be the reason. The other company came out, and within 10 minutes declared my 15 year old furnace needed a new control board and quoted about $2,000 (and of course, tried to upsell me on a new furnace!!! ). First of all, the board is only $315 on the internet, and secondly, Downing came out, saw that my polarity was reversed and fixed my problem within a service window. The Downing technician John was professional, respectful, knowledgeable, and was able to fix the problem quickly. I highly recommend Downing - they're not trying to upsell, just doing a quality job! Thank you!!!!

Sean C.

★★★★★

Great experience with this company. I sent an email asking for info, got a call the next day. The technician came when scheduled - and they gave me a one-hour window, which is a rare thing! He was polite, professional, and thorough, if a bit chatty. He gave me information and explanations about what he was doing. He told me my 25-yr-old furnace was performing well, but that if it starts misbehaving, I shouldn't spend money on fixing it, but rather to replace it. And he informed me that he saw evidence of rats under my house. I appreciated that, even if I didn't like hearing it! They gave me an accurate quote for servicing my heater and A/C system, and performed all the work in about an hour and a half.

Porter M.

★★★★★

I've been using Downing for years & have never had a complaint. They check it out ever year. Recently I returned from vacation & found the furnace would not click on. I called them & they came out that same day. The repairman found the problem, had the part in his truck & now my furnace works like a charm! The repairman was perfect. And the furnace is quieter than it used to be. Love their service!

Judy G.

★★★★★

Downing's service technicians have maintained and, yesterday, repaired our 55! year old furnace. They do not upsell you, so when they tell us it is time to replace it, Downing will have our business for that process, absolutely.

Anne B.

★★★★★

Great owner, great prices, clean, timely, no hassle work. Everything up front in writing, company stands behind there work and there word. Highly recommend to all.

Ron C.

★★★★★

These guys were great. We bought a foreclosure house and were stuck with a rotting heating system, so we didn't have much of a choice but to replace everything. We could have gone with a slightly cheaper quote, but these guys are total pros - why mess with your heat??

Joel P.

★★★★★

Downing Heating, Inc. SERVICE AREA

Proudly Serving Sausalito & Beyond

We are licensed, local, and experienced in handling projects

Downing Heating, Inc., a locally owned business, has provided reliable HVAC services for several decades. We are the trusted choice for Sausalito residential and commercial heating and air conditioning needs in Marin and Sonoma Counties.
We service all HVAC makes and models.

Ductless Mini Split System

HVAC Questions Answered

Frequently Asked Questions


  • How often do I need to change my air filters?

    Once a month is a pretty good rule of thumb for most people. Depending on where you live and how much dirt, pet dander, and other contaminants are present, the answer could be more or less. Check your filter frequently to determine if it’s dirty. If it is, change it.

  • What size AC unit do I need?

    There’s no easy answer for this one. A lot of factors will go into what size heating and cooling unit you’ll need. The type of house you own, its walls, insulation, attic space, and more can go into determining what size unit is required. A system that is too large could result in a home that’s too humid, causing problems with moisture and mold. A system that is too small will run constantly, running up your energy bill. Only a qualified heating and cooling technician can determine what size unit is best for your home.

  • Should I cover my AC unit in the fall and winter?

    While covering your unit can prevent unwanted debris from accumulating on the unit, it can also cause problems if you try to operate it with the covering in place. If you’re going on a long trip and plan to turn the unit off while you’re gone, feel free to cover it up. Just make sure you disconnect the power source before leaving.

  • Why should I replace my R-22 outdoor unit with an R410A?

    R-22 refrigerant and equipment are being phased out as Montreal Protocol regulations intended to reduce the impact on ozone take hold. As time passes, replacement parts and refrigerants for old R-22 units will become harder to find and more expensive, so replacing your unit now can save you some headaches in the future.