Founded on Integrity, Driven by Expertise
A family-owned HVAC and air quality company built to prove that honest, premium service isn't just possible, it's the only way worth doing business.
Family-Owned & Operated
Built to Do Things Differently
Gray Duct was founded by Jason Giandalia with a simple conviction: homeowners deserve HVAC and air quality service they can actually trust. After years of watching the industry normalize hidden fees, inflated quotes, and subcontracted work, Jason decided to build the company he wished existed.
As a family-owned business serving the Twin Cities Metro Area, every decision we make reflects a personal commitment to our neighbors. We don't answer to corporate quotas or shareholder targets, we answer to you. That means honest assessments, fair pricing, and certified workmanship on every single job.
From air duct cleaning and dryer vent service to full HVAC installations, our in-house team handles it all with the kind of care you'd expect from a company that puts its family name on the line.
The Gray Duct Standard of Service
Five steps that define every interaction, from your first call to the follow-up after we leave.
Honest Assessment
We start with a thorough evaluation of your system, no scare tactics, no invented problems. You get a clear, truthful picture of what's happening.
Transparent Quote
Before any work begins, you receive a detailed, written quote with no hidden fees. The price you see is the price you pay.
Certified Workmanship
Our in-house, NADCA-certified technicians perform every job to the highest industry standards, never subcontracted, always accountable.
Thorough Completion
We don't cut corners. Every service includes a post-work walkthrough so you can see exactly what was done and verify the results yourself.
Follow-Up Care
After the job, we check in to make sure everything is running perfectly. Your satisfaction doesn't end when we leave, it's where our relationship grows.
A Team of Certified, In-House Professionals
Every technician at Gray Duct is a full-time, in-house employee, never a subcontractor. We invest in our people because we believe the quality of our work starts with the quality of our team.
As a proud member of the National Air Duct Cleaners Association (NADCA) and a BBB Accredited Business, we hold ourselves to standards that most companies don't even know exist. Our certifications aren't just badges, they're daily commitments.
NADCA Certified
Air Duct Cleaning Specialists
BBB Accredited
A+ Rating, Zero Complaints
Fully Licensed
State of Minnesota
Insured & Bonded
Complete Protection
What We Stand For
Three pillars guide every decision, every interaction, and every job we take on.
Unwavering Integrity
We built this company to prove that HVAC service can be honest. No hidden fees, no bait-and-switch, no manufactured urgency. Just straightforward diagnosis and fair pricing, every single time.
Premium Precision
Every technician on our team is NADCA-certified, factory-trained, and employed in-house. We never subcontract, because your home deserves the same standard of care we'd demand for our own.
Transparent Value
You'll know the full price before we start, see exactly what we do while we work, and feel confident in every dollar spent. That's not a promise, it's the only way we operate.
Ready to Experience the Gray Duct Difference?
Get to know the people behind the promise, or explore the services we bring to your doorstep.
Or call us directly at (952) 254-8779