01
Heating
Furnace install, repair, and tune‑ups built for Front Range winters.
- High‑efficiency gas furnaces
- Heat pump conversions
- Same‑day no‑heat repair
Comfort,
calibrated.
Precision HVAC service and installation
designed for Colorado homes.
designed for Colorado homes.
Northgate HVAC — your comfort is our craft.
HeatingExcellence certified.
CoolingExcellence certified.
Air QualityExcellence certified.
24/7
24/7 Service
Day or night, we're here when you need us.
Certified install partners
TRANECARRIERLENNOXMITSUBISHIDAIKINBRYANT
What we do
Residential & commercial HVAC, done right.
From routine tune‑ups to full system replacements — heating, cooling, and indoor air quality, handled by people who care.
02
Cooling
Right‑sized AC, heat pumps, and ductless systems — quietly installed.
- Central AC & heat pumps
- Ductless mini‑splits
- Manual J load calculations
03
Indoor Air Quality
Cleaner indoor air, less dust, balanced humidity, year‑round.
- MERV‑13 & HEPA filtration
- Whole‑home humidifiers
- UV & fresh‑air systems
04
24/7 Emergency
Real technicians on call after hours, weekends, and holidays.
- Live dispatch — not a queue
- 2‑hour response in Boulder
- Transparent emergency rates
05
Maintenance Plans
Twice‑yearly tune‑ups, priority dispatch, and parts discounts.
- Spring AC + fall furnace visits
- 15% off all repairs
- Priority scheduling
06
Commercial HVAC
Rooftop units, light commercial install and service across Boulder County.
- RTU replacement & retrofit
- Restaurant & retail HVAC
- Scheduled PM contracts
Tune‑ups
Catch small issues before winter does.
Smart controls
Set it once. Comfortable all year.
18yrs
Family‑owned, since 2008
4,200+
Homes & businesses served
4.9★
Google rating, 612 reviews
<2 hr
Avg. emergency response
Why Northgate
A higher standard for HVAC in Colorado.
What people remember about us isn't the equipment — it's how we showed up.
Licensed, bonded, insured
CO HVAC contractor #HV‑0842371. Background‑checked techs, every job.
Trane Comfort Specialist
Factory‑trained and certified on the equipment we install and service.
Flat‑rate, upfront pricing
You'll see the full price before we start. No hourly creep, no surprises.
On time, every time
We text a 60‑minute arrival window and the tech's photo before they head out.
How it works
Booking us is the easy part.
- 01Tell us what's going on
Call or submit the form. We'll get back the same day with a clear next step.
- 02Diagnose or estimate
On‑site assessment, photo documentation, and a flat‑rate written quote.
- 03Schedule the work
Pick a window. We text confirmations, ETAs, and a tech bio before arrival.
- 04Done right — and warrantied
Clean job site, parts & labor warranty, and a follow‑up call to confirm comfort.
Service area
Proudly serving Boulder County.
Based in Boulder, dispatched daily across the Front Range. If you're outside this list, call us — we travel for the right job.
BoulderLongmontLouisvilleLafayetteErieSuperiorBroomfieldNiwotGunbarrelWestminsterArvadaThornton
Crews dispatching today· Avg. response < 2 hours
Local crews
Based in Boulder. On your block.
Reviews
What homeowners say.
4.9 / 5 on Google
612 reviews Google
“Our furnace died on the coldest night of the year. Northgate had a technician at the door in under two hours and a new system installed the next morning. Calm, professional, and honest about cost.”
Megan R.
Homeowner · Louisville
Feb 2026
Google
“They replaced our 22‑year‑old AC with a heat pump and walked us through every option without pressure. Install crew was meticulous — covered floors, hauled out the old unit, the works.”
Jared P.
Homeowner · Boulder
Aug 2025
Google
“We use Northgate for both our restaurants. Reliable, on time, and their maintenance plan has paid for itself twice over. I won't call anyone else.”
Sofia M.
Owner · Two Birds Cafe
Nov 2025
FAQ
The questions we get most.
Don't see yours? Call us — we're happy to talk through it.
Do you charge for estimates?
Estimates for new system installs are always free and in‑person. Diagnostic service calls are a flat $89, waived if you move forward with the repair.
How fast can you come out for an emergency?
We average under two hours in Boulder County for no‑heat or no‑cool calls, 24/7. Call our dispatch line and a real person picks up.
What brands do you install and service?
We're a Trane Comfort Specialist but install and service every major brand — Carrier, Lennox, Mitsubishi, Daikin, Bryant, and more.
Do you offer financing?
Yes. 0% APR for 18 months on qualifying installs through our partner, with same‑day approval.
Are you licensed and insured?
Colorado HVAC contractor license #HV‑0842371. Bonded and fully insured. We carry $2M general liability and workers' comp on every crew member.
Free in‑home estimate
Thinking about a new system? We'll size it right.
No pressure, no upsell. Our team will walk your home, talk through options, and send a clear written quote — usually within 24 hours.
Financing available
0% APR for 18 months
Qualifying installs through our financing partner. Same‑day approval, no prepayment penalties.
Get a quote
Tell us what's going on.
Fill out the form or call us directly — we'll get back to you the same day.
Available 24/7 for emergencies.
- Same‑day callback, guaranteed
- Free in‑home estimates on new installs
- Flat‑rate, written quotes — no surprises
- Licensed, insured, background‑checked techs