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Sonoma County’s Trusted HVAC Experts

Local. Transparent. Built for Comfort.

From new construction high-end homes to residential remodels, mechanical design to custom sheet metal, heat pumps to mini-splits — Monaco Mechanical delivers full-service heating & cooling solutions with honesty, craftsmanship, and energy-smart innovation.

Your Trusted Local Partner in Heating, Cooling & Custom Mechanical Solutions

At Monaco Mechanical, we’re more than just your neighborhood HVAC contractor — we’re your full-service partner in comfort, efficiency, and mechanical innovation. Whether you’re upgrading your home for energy savings or building from the ground up, our team brings decades of experience, integrity, and craftsmanship to every project.

We specialize in mechanical design, new construction systems, heat pumps and fan coils, mini-split installations, energy-efficient upgrades, furnace replacements, and in-house sheet metal fabrication — all tailored to meet your home’s unique needs.

As a Mitsubishi Diamond Dealer, TECH Clean California Participating Contractor, Sonoma Clean Power Preferred Contractor, and a Sonoma County Energy Independence Program affiliate, we’re deeply connected with the best incentive and rebate programs available. We also offer access to contractor-approved financing options, helping make your upgrades affordable and seamless.

Choosing Monaco Mechanical means keeping your business local, supporting a company built on transparency, accountability, and a true passion for quality HVAC work. From our straightforward estimate process to our customer satisfaction guarantee, we’re proud to offer a level of service that’s simply unmatched.

Let’s build comfort together — efficiently, locally, and with care.

We Won - Best of the North Bay: Heating and Air Contractor 2025 and 2024

Samples of Our Work

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Monaco Mechanical is proud to be partnered with Mitsubishi Electric and Trane as a

Mitsubishi Elite Diamond Dealer! 

Monaco Mechanical is also part of the following programs:

Sonoma Clean Power Preferred Contractor

Sonoma County Energy Independence Program affiliate

Clean Energy Connection Contractor

Tech Clean California program – HEEHRA

Go Green Financing Contractor

(Click each line item to be brought to that participating program’s website) 

WE WORK WITH THE FOLLOWING BRANDS

🍂 Seasons change—and your comfort should change ri 🍂 Seasons change—and your comfort should change right along with them!

Cool mornings, warm afternoons, chilly nights… a Mitsubishi Electric heat pump can handle it all. One efficient system gives you both heating and cooling, automatically keeping your home comfortable through every Northern California season.

Thinking about upgrading your HVAC system? Now is a great time.

🍁 Mitsubishi Electric heating & cooling
💰 Rebates are still available
💳 Financing options available
🏡 Energy-efficient comfort, year-round
🔧 Installed by Monaco Mechanical

Get ahead of the colder weather and upgrade your home comfort today!

📞 Contact Monaco Mechanical for a free estimate and to learn which rebates you may qualify for.

#MonacoMechanical #MitsubishiElectric #HeatPump #HeatPumpUpgrade #EnergyEfficient #HomeComfort #HVAC #SantaRosa #SonomaCounty #MarinCounty #NapaCounty
Fall's settling into Sonoma County. 🍂 The leaves Fall's settling into Sonoma County. 🍂

The leaves change. The mornings change. Your comfort shouldn't.

A Mitsubishi system handles both sides of the calendar — heat for the 42° mornings, cooling for that surprise 90° week in October. One system. Room-by-room control. No seasonal scramble.

#MonacoMechanical #SantaRosa #SonomaCounty #HVAC #MitsubishiElectric #HeatPump #EliteDiamondDealer #HomeComfort #FallReady raded comfort, all year round.

Mitsubishi Electric Elite Diamond Dealer | Residential & light commercial | Santa Rosa, CA

 #fallready
Proud to swing for a cause that matters. 💜 Monaco Proud to swing for a cause that matters. 💜

Monaco Mechanical and Strata Energy Solutions teamed up at The Zane Templin Foundation golf tournament — two foursomes, a lot of fundraising, and a whole lot of heart for a foundation doing meaningful work in our community.
Thank you to the Zane Templin Foundation for putting on such a great day, and to everyone who came out to support. Grateful to be a Gold Sponsor and even more grateful to be part of a community that shows up for each other.
Same time next year? ⛳️

📸 Swipe to see the crews.

#ZaneTemplinFoundation #MonacoMechanical #StrataEnergySolutions #GolfForACause #CharityGolf #CommunityFirst #GiveBack #SonomaCounty #GoldSponsor
Collapsed flex. Torn liner. Insulation shedding in Collapsed flex. Torn liner. Insulation shedding into the airstream. Every foot of that duct was leaking conditioned air into the dirt — and the homeowner was paying for it.

We pulled all of it. New sized duct, properly supported, sealed at every connection, hung so it stays that way in year ten.

Your equipment is only as good as what you attach it to. We're a Mitsubishi Electric Elite Diamond Contractor, and we build the whole system — not just the box.
Residential and light commercial. Sonoma County and beyond.

#MonacoMechanical #MitsubishiElectric #DiamondContractor #DuctReplacement #BeforeAndAfter #SonomaCountyHVAC #HeatPump
Elite Diamond Contractor isn't a sticker you buy. Elite Diamond Contractor isn't a sticker you buy.

It's Mitsubishi Electric's highest dealer designation — earned through advanced technical training, install quality, and a track record they actually audit. Fewer than 5% of contractors nationwide hold it.

What it means for you: extended warranty coverage you can't get anywhere else, factory-level design support on complex jobs, and technicians trained specifically on this equipment rather than treating it like a generic heat pump.

We chose to specialize. Residential and light commercial, start to finish.

#MonacoMechanical #EliteDiamondContractor #MitsubishiElectric #HVACcontractor #NorthBay #HeatPumps
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CONTACT

Monaco Mechanical
Casey Monaco
(707) 200-8067

Contact Us

PROUDLY SERVING

Residential & Commercial Properties
In Sonoma County & Marin County
Based in Santa Rosa, CA

Estimate Request

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