NATE-certified
Every technician is North American Technician Excellence certified.
Our story
A local team you can trust in your home.
Northline started with one van, one technician, and a simple idea: treat people fairly and do great work. Fifteen years later, that hasn't changed — we've just added more neighbors to look after.
Since 2009
Built on referrals, not sales pitches.
Founder Dave Whitaker spent years working for big outfits that pushed quotas over customers. When he went out on his own, he built the company he wished he'd worked for — one where technicians are trained to fix, not to sell.
Today, Northline is a team of NATE-certified professionals serving thousands of Front Range homes. Most of our new customers come from a neighbor's recommendation, and we work hard every day to keep earning that trust.
15+ years in business 12,000+ homes served
Credentials
Licensed, certified & accountable.
The training and protection that stand behind every job we do.
Licensed & insured
Fully licensed, bonded and insured for your complete protection.
EPA 608 certified
Certified for safe, compliant refrigerant handling.
Energy Star partner
Helping homeowners choose efficient, rebate-eligible systems.
The people
Meet the crew.
Real, background-checked professionals who take pride in their work.
Our guarantee
What we promise every customer.
If you're ever less than thrilled, we'll make it right. That's the Northline guarantee.
Treat every home like our own
Shoe covers, drop cloths and respect — every visit, no exceptions.
Honest, upfront pricing
You approve the price before we start. We never upsell what you don’t need.
Do it right the first time
Quality parts, careful work and a guarantee that stands behind it.
Show up when we say
On-time arrivals and real communication — we respect your schedule.
Giving back
Rooted in the community we serve.
Each winter we donate and install free furnaces for local families in need through our Warm Hearts program, and we sponsor youth sports across the metro. Taking care of neighbors is just who we are.
Ready when you are
Let's get your home comfortable again.
Book online in under a minute or call our team 24/7. Upfront pricing, no surprises.