Waterloo, ON

Popular Cities

Waterloo, ON
Join as a Pro

Best HVAC Contractors in Waterloo, ON

24 companies listed · all 24 in Waterloo · 4 open 24/7 · 11 open weekends · 21 rated 4.5+

Data verified October 18, 2026

View Profile
Delta Air Systems Ltd.

Delta Air Systems Ltd.

(48)
  • Rebates
  • Equipment
  • Quote
“Jason; Scott; Tyler; Jordan; Zack were extremely helpful in placement of units for most efficient service installation in most unobtrusive place outside conduit and inside units.”
Coupons & Offers
Licensed
Emergency Services
Offers Financing Options
595 Colby Dr #2, Waterloo, ON N2V 1A1
i
View Profile
Bast Home Comfort

Bast Home Comfort

(47)
  • Clean
  • Call
  • BBQ
“Points for not selling me a new unit and install when it wasn't needed but also extremely helpful and courteous over the phone, tech was polite, professional, touched up the paint and knew his stuff.”
Offers Financing Options
Coupons & Offers
In Business Since 2005
620 Davenport Rd #12, Waterloo, ON N2V 2C2
i
View Profile
Afterglow Hvac

Afterglow Hvac

(49)
  • Heating
  • Informative
  • Water Heater
“We have counted on your technical support for the last 15 years and my wife and I have always been impressed by your timely response, high quality of work and personalized attention to our requests”
75C Northland Rd, Waterloo, ON N2V 1Y8
i
View Profile
Baseline Inspections Inc.

Baseline Inspections Inc.

(49)
  • Property
  • Knowledge
  • Questions
“Working with Rod was great, he explained everything going on in our house in great detail, answered any questions I had, and produced a super helpful report and tips for maintaining our home.”
In Business Since 2003
151 Frobisher Dr Unit B108, Waterloo, ON N2V 2C9
i
View Profile
Koebel Heating

Koebel Heating

(49)
  • Clean
  • Work
  • Job
“After having heating issues I called koebel heating and they sent somebody out right away the person came out and assess the problem fixed it and I was quite pleased with the job.”
Emergency Services
Offers Financing Options
In Business Since 2016
96 Rankin St Unit F, Waterloo, ON N2V 1V9
i
View Profile
Cross Heating & Air Conditioning Ltd.

Cross Heating & Air Conditioning Ltd.

(50)
  • Clean
  • Needs
  • Questions
“We dealt with Jason for sales and overall coordination and he provided excellent customer service, was very quick to answer our questions, and was much more responsive than other companies we spoke with.”
Offers Financing Options
Free Initial Consultation
In Business Since 2008
483 Conestogo Rd Unit 1B, Waterloo, ON N2L 4C9
i

The 24 companies listed for Waterloo, ON handle furnaces and heat pumps in winter and the cooling side in summer. Profiles repeat what each firm publishes about hours, licensing and brands, with ratings and review quotes gathered from public reviews.

Area overview: Waterloo, ON

All 24 companies we list here are in Waterloo itself. We have 30 companies in Waterloo on file; this page shows the highest-rated 24. The companies on this page are rated from 4.0 to 5.0 across 1,762 reviews; 8 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (90%), responsiveness (86%) and quality (78%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "efficient". 4 are open around the clock; 11 are open on Saturdays and 6 on Sundays. 2 show a licence on their websites. Domain records put 12 websites of the companies on this page at ten or more years old; the oldest dates from 1997. 5 offer emergency call-outs; 5 offer financing or payment plans; 3 give free estimates; 2 are family- or locally-owned and 4 list coupons or special offers. We have a website on file for all 24 of the companies on this page; 20 publish a contact page; 17 list a public email and 2 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.

Do any heating firms listed for Waterloo work on Saturdays or Sundays?

Saturday or Sunday hours show up for 11 of the 24 companies on this page. Saturday is mostly repair work; installations land on weekdays, because supply houses and municipal inspectors keep weekday hours.

View Profile
Reitzel Insulation

Reitzel Insulation

(49)
  • Spray Foam
  • Rebate
  • Job
“This company did a great job adding more insulation to our attic a few years ago and working on a vent pipe leading outside from our upstairs bathroom fan.”
Coupons & Offers
134 Northfield Dr E, Waterloo, ON N2J 4G8
i
View Profile
A1 Pros

A1 Pros

(42)
  • Choice
  • Metal Roof
  • Business
“A1 was professional from start to finish, I really appreciated there was no mess after the work was done and more importantly now I have the best looking house on the street.”
180 Northfield Dr W #4, Waterloo, ON N2L 0C7
i
View Profile
Reuter Roofing

Reuter Roofing

(40)
  • Shingles
  • Barry
  • Team
“Both Rick MacIntosh (estimator) and Cory Reuter (owner) met with us during the estimate/pricing/quoting process and stayed in touch with us while their team installed our new roof.”
90 Rankin St Unit 11, Waterloo, ON N2V 2B3
i
View Profile
TRH Plumbing & Heating Inc

TRH Plumbing & Heating Inc

(29)
  • Toilet
  • Elbow
  • Basement
“They were quick to respond to my call and fix everything which amazed me because I had a different company in a month before and they could not identify the problem.”
Emergency Services
In Business Since 2022
650 Weber St N, Waterloo, ON N2V 2N2
i
View Profile
Robert Thompson Contracting

Robert Thompson Contracting

(35)
  • Basement
  • Framing
  • Team
“Chad and his team treated our basement rebuild like it was a long-awaited reno & gave us a finished rec room & bathroom that are the envy of the rest of the house now.”
In Business Since 2010
6 Colby Ct Unit 5, Waterloo, ON N2V 1Y9
i
View Profile
R M W Exteriors Inc

R M W Exteriors Inc

(34)
  • Product
  • Price
  • House
“The crew was thoughtful, curteous, mindful about going through to find any nails or sharp pieces on the ground so my dogs wouldn't hurt themselves when they came out.”
In Business Since 2011
840 King St N, Waterloo, ON N2J 4G8
i
View Profile
Cronin Verheul Heating & Air Conditioning Ltd

Cronin Verheul Heating & Air Conditioning Ltd

(32)
  • Sales
  • Job
  • Information
“Although he had multiple calls and was extremely busy he never made us feel rushed and came back several times to make sure the heat was working and supplied us with backup heating when necessary.”
Family Business
Emergency Services
Offers Financing Options
Coupons & Offers
820 King St N #6A, Waterloo, ON N2J 4G8
i
View Profile
Markle Heating & Cooling Inc

Markle Heating & Cooling Inc

(13)
  • Heat Pump
  • Technician
  • Honest
“Initially, I had contacted Able Air, but their technician failed to conduct a thorough diagnostic and simply concluded that the air conditioner required replacement.”
Emergency Services
In Business Since 2013
90 Frobisher Dr, Waterloo, ON N2V 2A1
Featured

Markle Heating was a proud sponsor of The Braestone Winter Classic Charity Pond Hockey Tournament benefiting the Simcoe Muskoka Regional Cancer Centre. Here is Sheri Markle presenting the Jeff Markle Memorial Award to Lauren Frith for being the player who best exemplified the qualities of...

i
View Profile
SM Mechanical

SM Mechanical

(14)
  • Price
  • Communication
  • Furnace
“Scott MacDonald and his team are one of the best I have dealt with in this industry.”
Free Initial Consultation
Family Business
In Business Since 2019
Colby Dr, Waterloo, ON N2K 2N5
i
View Profile
ATN Mechanical Systems

ATN Mechanical Systems

(11)
“My biggest thing is trust and integrity and the reason I am doing this review is to tell others that you can absolutely trust these guys to do their very best and that they actually care about the work they do for you.”
In Business Since 2013
90 Rankin St, Waterloo, ON N2V 2B3
i
View Profile
Eastbridge Heating & Cooling

Eastbridge Heating & Cooling

(17)
  • Questions
  • Hvac
  • Quality
“Right from the start, they showed an impressive level of knowledge and expertise, offering valuable insights and personalized recommendations that perfectly suited my needs.”
Licensed
In Business Since 2017
614 Colby Dr Unit 9, Waterloo, ON N2V 1A2
i
View Profile
K-W Fireplace Installations and Home Comfort

K-W Fireplace Installations and Home Comfort

(5)
“The tasks at hand were completed cleanly and he later then took the time to explain function and preventative maintenance so my family could enjoy our investments for years to come....”
62 Margaret Ave N, Waterloo, ON N2J 3P7
i
View Profile
Menno S Martin Contractor Limited

Menno S Martin Contractor Limited

(4)
“We are very happy with the results and with the help and flexibility we received while designing the reconfigured space.”
In Business Since 1997
100 Rankin St Unit 5, Waterloo, ON N2V 1V9
i
View Profile
AAA Air Conditioning Inc.

AAA Air Conditioning Inc.

(2)
“Great bunch of guys”
In Business Since 2012
60 Rankin St, Waterloo, ON N2V 1V9
i
View Profile
VIP Energy Services Inc

VIP Energy Services Inc

(1)
“Top notch engineering services.”
606 Colby Dr, Waterloo, ON N2V 1A2
i
View Profile
Reitzel Heating & Air Conditioning

Reitzel Heating & Air Conditioning

(9)
  • Insulation
  • Family
“Prompt to give an estimate to add insulation in attic.”
In Business Since 2001
665 Superior Dr, Waterloo, ON N2V 2C8
i
View Profile
The Master Group Waterloo (Formerly Fortress)

The Master Group Waterloo (Formerly Fortress)

(9)
“Fast, friendly, knowledgeable.”
85 Baffin Pl, Waterloo, ON N2V 2C1
i
View Profile
Carter-Grant Mechanical

Carter-Grant Mechanical

(7)
“(Bryant furnace)highly recommended .”
In Business Since 2021
80 Rankin St Unit #3, Waterloo, ON N2V 1V9
i
HomeHeating & Air Conditioning, HVACOntarioWaterloo, ON

HVAC, Heating & AC Services in Waterloo, ON Cost Estimates

Minimum cost
$2474
Maximum cost
$14827
National Average
$7719
Avg Per Hour Rates
$206
$5299
$10232
Average price range is based on 323 cost profiles
Embed on your site

Your Embed Code

Click to copy
Successfully copied!
Average Cost $7719
Minimum cost $2474
Maximum cost $14827
Avg Per Hour Rates $206

Average range $5299 to $10232 is based on 323 cost profiles.

Why these companies made our list

Is this page useful? Yes
No
Is there anything wrong with this page?

HVAC Contractors near Waterloo

Popular in Waterloo

, ON

Guides: HVAC Contractors

Back To Top