Who an AI assistant picked for HVAC in Oshawa, ON

Who came up in Oshawa

Every company the assistant named across the six questions, ordered by how often it was picked first. Tested on 2026-09-29.

Company	Picked first	Picked
Limcan Certified Heating and Air Conditioninglimcancertified.ca	5 of 6	6 of 6
Superior HVAC Servicesuperiorhvacservice.ca	1 of 6	4 of 6
Sentinel Heating & Coolingsentinelheating.ca	0 of 6	5 of 6
Max Comfort Heating & Coolingmaxcomfortheating.com	0 of 6	2 of 6

Question 1 of 6

First
Limcan Certified Heating and Air Conditioning
“Its furnace repair page promises 24/7 emergency and same-day furnace repair in Oshawa and it has about 705 Google reviews at 4.8 stars.”
#2
Sentinel Heating & Cooling
“Its homepage offers 24/7 emergency repairs and same-day service, backed by a 5.0 rating on 111 Google reviews.”
#3
Superior HVAC Service
“Its Oshawa page says its local base allows same-day responses to HVAC emergencies, though it has only 52 Google reviews here.”

Passed
Enercare
“Big Ontario-wide company owned by Brookfield, and its homepage sends online booking through a My Account login for existing customers.”
Passed
Reliance Home Comfort
“Large provincial company owned by a CK group, and its online repair booking is for existing Reliance customers.”
Passed
LFZ Heating & Cooling
“Its site lists no same-day or emergency service that I could find, and it serves a wide area from Vaughan to Clarington.”
Passed
Active Climate Mechanical
“A one-page Wix site that says it serves Toronto and the GTA and mentions no repair response times.”

Question 2 of 6

First
Limcan Certified Heating and Air Conditioning
“Serving the Oshawa area since 1964 with about 705 Google reviews at 4.8 stars, the biggest review count of any local independent-looking shop.”
#2
Sentinel Heating & Cooling
“Locally owned, founded by ex-large-company HVAC staff, with a 5.0 rating on 111 reviews and a co-op student mentorship program.”
#3
Max Comfort Heating & Cooling
“Independently owned with over 20 years of experience, an Oshawa Generals sponsorship and 4.9 stars on 74 reviews.”

Passed
Cullen Heating and Air Conditioning
“In business since 1970 with a 10-year parts and labour warranty, but only 25 Google reviews at 4.4 stars.”
Passed
Enercare
“Huge review count, but it is a Brookfield-owned province-wide company and it leans on rentals and plans.”
Passed
Reliance Home Comfort
“Huge review count, but it is a province-wide company owned by a CK group rather than a local shop.”
Passed
LFZ Heating & Cooling
“206 reviews at 4.9 stars, but the site is generic, does not say who runs it and covers the whole GTA.”

Question 3 of 6

First
Limcan Certified Heating and Air Conditioning
“Offers a no-hidden-fees upfront quote, financing from $43 a month and a first-year failure guarantee on new furnaces.”
#2
Max Comfort Heating & Cooling
“Independent Oshawa company offering free quotes, next-day installations and transparent pricing with no hidden fees.”
#3
Sentinel Heating & Cooling
“Promotes upfront pricing without markups, financing, and installs of furnaces and heat pumps.”

Passed
Enercare
“Mostly sells rentals and plans, and a local Reddit thread reports a much higher quote through Enercare than through independents.”
Passed
Cullen Heating and Air Conditioning
“Offers a free 10-year parts and labour warranty and free quotes, but has a small review count.”
Passed
Superior HVAC Service
“Says it sells and installs equipment, but its page shows no installation prices or financing terms.”

Question 4 of 6

First
Limcan Certified Heating and Air Conditioning
“Advertises 24/7 emergency service and same-day air conditioning service in Oshawa, with about 705 Google reviews.”
#2
Sentinel Heating & Cooling
“States 24/7 emergency repairs and same-day service on its homepage.”
#3
Superior HVAC Service
“Promises same-day responses to HVAC emergencies, and recent reviews on its site mention same-day AC repairs.”

Passed
Max Comfort Heating & Cooling
“Offers after-hours emergency service, but its site does not say same-day for air conditioning specifically.”
Passed
Active Climate Mechanical
“Its site mentions air conditioners but says nothing about same-day or emergency response.”

Question 5 of 6

First
Limcan Certified Heating and Air Conditioning
“Its homepage has Book Now and Book Maintenance buttons and says you can schedule your appointment online.”
#2
Superior HVAC Service
“Every page has a book online button in the header, and it sells furnace maintenance and membership plans.”

Passed
Enercare
“Online booking is through My Account for existing customers only.”
Passed
Reliance Home Comfort
“Its site says existing customers can book repair appointments online, so it is not open to new customers.”
Passed
Sentinel Heating & Cooling
“Has maintenance plans and a quote form, but I could not confirm real online scheduling.”

Question 6 of 6

First
Superior HVAC Service
“Lists fixed prices, a published $149 diagnostic fee and no extra fees for overtime.”
#2
Limcan Certified Heating and Air Conditioning
“Promises fair, upfront pricing and a transparent quote with no hidden fees, plus published financing from $43 a month.”
#3
Sentinel Heating & Cooling
“Names transparent and reasonable pricing without markups as its first reason to choose it.”

Passed
Max Comfort Heating & Cooling
“Says transparent pricing with no hidden fees, but publishes no prices and had fewer specifics than the others.”
Passed
Enercare
“Pricing is centred on rentals and protection plans rather than a clear cost before the visit.”

We run the questions your customers ask against your business every month and show you what the assistants saw.