🌿 Built on Family, Fueled by Community — Meet Monaco Mechanical
Monaco Mechanical is more than just a local HVAC company — we’re a family-owned and operated business deeply rooted in the heart of Sonoma County.
Founded by Casey Monaco, a Sonoma County native with over 25 years of experience, our mission is simple: to bring the most cost-effective, energy-efficient, and comfort-driven HVAC solutions to the homes and businesses in our community. Casey has spent decades perfecting his craft — blending mechanical expertise with custom design — to transform ordinary spaces into efficient, comfortable, high-performing environments.
Our reputation speaks for itself. Word-of-mouth referrals and long-time customers are the result of Casey’s commitment to quality, honesty, and doing right by his neighbors.
But Monaco Mechanical is more than just Casey — it’s a true family operation. Built hand-in-hand with his wife Shannon, and supported by their children, Ty and Jordan, plus the beloved crew of three French Bulldogs, the business is as personal as it is professional. Casey is also a passionate supporter of local youth sports, FFA programs, and loves hitting the road for family travel adventures when he’s not on the job site.
At the core of everything we do is a deep love for our community — and a promise to deliver HVAC craftsmanship that’s honest, reliable, and made to last.
Why Builders, Contractors and Homeowners Choose Monaco Mechanical
At Monaco Mechanical, we do things differently — and that difference starts with how we treat people.
Choosing us means choosing local craftsmanship, honest service, and a team that truly cares. As a family-owned business rooted in Sonoma County, we operate with transparency, integrity, and a customer-first mindset every step of the way.
From your first call to final install, we make the process simple and stress-free:
📋 Upfront estimates
💬 Transparent pricing
✅ Satisfaction guarantee
We don’t just install HVAC systems — we design, build, and maintain complete comfort solutions. Whether you’re looking for energy-efficient upgrades, a new heat pump, or custom sheet metal fabrication, we bring the tools, tech, and experience to get it done right.
Our team is highly skilled in:
Residential HVAC system design and installation
Heat pump and mini-split solutions
High-performance energy upgrades
Furnace replacements and tune-ups
Custom sheet metal and flashings
Ongoing maintenance and support
We take pride in our work — not just for how it performs, but how it feels. Because at the end of the day, our goal is simple:
Leave your home more comfortable, more efficient, and better than we found it.

About Us
