Airthentic Heating & Cooling — St. Catharines, Niagara
See the work.
Not the spin.
Real heating and cooling work across the Niagara region. Drag the slider to see one of our recent AC service jobs, before and after — no filters, no overlays, just the actual job.
Licensed & insured Ontario HVAC contractor. 24/7 emergency line.
Drag the handle to compare. Real customer condenser, summer 2025.
The work, unfiltered
Before / After
A close-up of the same kind of work, taken minutes apart. Coil pulled out matted with years of debris, then cleaned down to the fins. Same coil, same afternoon.
More before / after photos on the way as Ryan documents jobs through the season. Want your home featured? Mention it when you book.
Recent jobs
Recent work
A quick look at jobs from across St. Catharines and the wider Niagara region. No stock photography — every photo is something Ryan or the team took on site.
High-efficiency furnace swap
Old furnace pulled and replaced with a high-efficiency two-stage unit. Done in a single visit.
Viessmann boiler retrofit
Full hydronic boiler install with new manifold and zoning. Quiet, efficient, modern controls.
Permitted gas manifold
Four-line gas manifold serving the BBQ, dryer, pool heater, and a garage heater. Permitted and pressure tested.
Fresh condenser install
New high-efficiency outdoor condenser set on a fresh pad, tied into refrigerant lines, and commissioned the same day.
Mid-season diagnostic
Catching a failing capacitor before it left a family without cooling in the middle of July.
What we do
Residential HVAC, done right.
Furnaces, AC, ductless heat pumps, tankless, and gas line work — all licensed, all permitted, all backed by a real warranty.
Furnace Repair & Installation
Airthentic services furnaces of all major makes and models. When it is time to replace, the team sizes and installs high-efficiency systems built for Ontario winters.
AC Repair & Installation
From a system that is not cooling to a full replacement, Airthentic handles diagnostics, refrigerant work, and complete central AC installations across the Niagara region.
Mini-Split & Ductless Heat Pumps
Ductless heat pumps deliver efficient heating and cooling from a single unit, ideal for garages, additions, finished basements, and homes without ductwork.
Tankless Water Heaters
Tankless water heater installation, repair, and maintenance. Free up floor space and stop running out of hot water on long showers and big laundry days.
Gas Line Installation
Licensed gas line installation for BBQs, stoves, dryers, garage heaters, pool heaters, and outdoor fire features. Every job is permitted and pressure tested.
24/7 Emergency Service
No heat in January, no AC in July, gas smell anytime. The Airthentic line is answered around the clock by a real technician, including nights, weekends, and holidays.
Why Airthentic
Four reasons homeowners
in Niagara call us back.
Licensed & insured
Fully licensed Ontario HVAC and gas contractor with WSIB and liability coverage on every job.
24/7 emergency line
Real technicians answering the line nights, weekends, and holidays. No answering service runaround.
Local to Niagara
Based in St. Catharines, serving the Niagara region as a neighbour, not a chain.
The work speaks for itself
Real before and after photos from real jobs. No stock images, no rendered marketing shots.
Get a quote
Tell us about the job.
Send a quick note and Airthentic will follow up with a real quote — usually within the same business day. For after-hours emergencies, call the line.