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Best HVAC Contractors in Gananoque, ON (2026)

52 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Gananoque: Kingston Home Services by Enercare, CR Score 63/100; 4.9★ from 2,867 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Haven Home Heating and Air Conditioning, posts 24/7 hours; ranked #2 of 52.

  3. 3

    Most-reviewed: Reliance Heating, Air Conditioning & Plumbing, 4,101 Google reviews at 4.7★, the most of 52 ranked; ranked #3.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

52 Gananoque HVAC contractors are ranked here by CR Score, from ten published factors. 15 are open 24/7, 25 open Saturdays and 22 open Sundays, based on posted hours. The median Google rating is 4.8★ across 52 rated businesses.

Most of this list also appears on the HVAC contractors in Kingston ranking. See HVAC contractors in Kingston

Top 10 HVAC contractors in Gananoque at a glance

Top 10 HVAC contractors in Gananoque at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Kingston Home Services by Enercare634.9★ (2,867)Kingston, 29 km away24/7Overall
2Haven Home Heating and Air Conditioning634.9★ (3,430)Kingston, 34 km away24/7Emergencies
3Reliance Heating, Air Conditioning & Plumbing624.7★ (4,101)Kingston, 33 km away24/7Most reviews
4Full Service Property Maintenance604.8★ (31)Gananoque24/7—
5Home Aire Care Heating and Cooling594.8★ (400)Kingston, 33 km away24/7—
6Dows ClimateCare594.9★ (272)Kingston, 33 km away24/7—
7Superior Plumbing & Heating of Kingston594.9★ (137)Kingston, 28 km away24/7—
8Kyro Mechanical585.0★ (311)Kingston, 32 km awaySat · Sun · Evenings—
9Fireplaces Unlimited Heating & Cooling584.9★ (995)Kingston, 29 km awaySat—
10YGK Heating & Cooling Inc.565.0★ (156)Kingston, 37 km awaySat · Sun—

The 52 best HVAC contractors in Gananoque, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  6. #6 Dows ClimateCare

    Based in Kingston, 33 km away

    59/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.9★ from 272 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 272 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2495 Princess St, Kingston, ON K7M 3G1
    View profile for Dows ClimateCare(613) 900-7254

  8. #8 Kyro Mechanical

    Based in Kingston, 32 km away

    58/100CR Score

    Ranked #8 because of its Google rating and trade focus: 5.0★ from 311 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 311 Google reviews
    Hours
    Mon–Sun 7:30 AM–11:30 PM
    Address
    1158 Clyde Ct, Kingston, ON K7P 2E4
    View profile for Kyro Mechanical(613) 449-8126

  10. #10 YGK Heating & Cooling Inc.

    Based in Kingston, 37 km away

    56/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 156 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 156 Google reviews
    Hours
    Mon–Sun 8 AM–5 PM
    Address
    712 Stonehenge St, Kingston, ON K7P 0B2
    View profile for YGK Heating & Cooling Inc.(613) 449-3825

  13. #13 Farley Heating Inc.

    Based in Kingston, 33 km away

    56/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.7★ from 51 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 51 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1381 Midland Ave #050, Kingston, ON K7P 2W5
    View profile for Farley Heating Inc.(613) 507-5600

  14. #14 Harrigan Heating & Air

    Based in Kingston, 37 km away

    55/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.8★ from 49 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 49 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Harrigan Heating & Air(613) 449-6748

  16. #16 Tozer Heating & Air

    Based in Kingston, 34 km away

    55/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 425 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 425 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    700 Progress Ave Unit 6, Kingston, ON K7M 4W9
    View profile for Tozer Heating & Air(613) 384-7367

  18. #18 Northern Temp

    Based in Gananoque

    54/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 13 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    View profile for Northern Temp(613) 265-2922

  19. #19 Arie Victor Enterprises, Canadian Quality HVAC

    Based in Kingston, 30 km away

    54/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 21 Google reviews
    Hours
    Mon–Thu 7 AM–6 PM · Fri 7 AM–4 PM · Sat 8 AM–12 PM · Sun 7 AM–6 PM
    Address
    200 Binnington Ct, Kingston, ON K4P 8R6
    View profile for Arie Victor Enterprises, Canadian Quality HVAC(613) 305-9298

  20. #20 Home Comfort HVAC

    Based in Kingston, 38 km away

    54/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.8★ from 54 Google reviews, listed on Google as “Heating contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 54 Google reviews
    Hours
    Mon–Sun 8 AM–5 PM
    View profile for Home Comfort HVAC(613) 572-1511

  21. #21 Reins Heating HVAC & Air Conditioning Ltd Kingston

    Based in Kingston, 29 km away

    53/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.8★ from 156 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 156 Google reviews
    Hours
    Mon–Thu 8 AM–5 PM · Fri 8 AM–4 PM · Sat–Sun closed
    Address
    1407 John Counter Blvd Unit 210, Kingston, ON K7K 6A9
    View profile for Reins Heating HVAC & Air Conditioning Ltd Kingston(613) 542-8256

  25. #25 Evertemp Inc.

    Based in Kingston, 33 km away

    52/100CR Score

    Ranked #25 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.4★ from 5 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1171 Clyde Ct, Kingston, ON K7P 2E4
    View profile for Evertemp Inc.(613) 634-0178

HVAC contractors ranked #27 to #47

#1 to #25 are shown in full above. Here are #27 to #47, in CR Score order; each links to its profile. We publish the top 47 of 52 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Gananoque, ranks 27 to 47
RankBusinessCR ScoreGoogle ratingDistance
27Bridgeview Tech Inc524.6★ (38)13 km
29Donaldson Plumbing & Heating513.7★ (15)23 km
30H&B Heating and Air Conditioning513.4★ (29)40 km
33Ktown HVAC & Propane505.0★ (4)27 km
45Wylie Electric474.9★ (7)32 km
47Van Heddegem Plumbing & Heating (1988) Inc474.0★ (12)28 km

How much do HVAC contractors cost in Gananoque?

US national ranges converted to CAD, not adjusted for Gananoque. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Gananoque?
JobLowTypicalHighBasisChecked
AC replacementCA$5,460CA$8,400CA$11,350Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)October 2026
Furnace replacementCA$3,970CA$6,770CA$9,690Per system, installed; typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)October 2026

When to hire an HVAC contractor in Ontario

In Ontario, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.

How we ranked Gananoque HVAC contractors

We scored 52 Gananoque HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Gananoque data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Gananoque: frequently asked questions

Who is the best HVAC contractor in Gananoque?

By CR Score, the highest-ranked HVAC contractor in Gananoque, ON is Kingston Home Services by Enercare with a CR Score of 63/100. It has 4.9★ from 2,867 Google reviews. It is open 24/7. Haven Home Heating and Air Conditioning (#2) and Reliance Heating, Air Conditioning & Plumbing (#3) follow. We ranked 52 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Gananoque?

ContractorsRanked ranks 52 HVAC contractors serving Gananoque, ON. 3 of them are based in Gananoque; the rest serve it from nearby towns. Counts are as of October 2026.

Which HVAC contractors in Gananoque are open 24/7?

15 ranked HVAC contractors in Gananoque post 24/7 hours. The highest-ranked are Kingston Home Services by Enercare (#1), Haven Home Heating and Air Conditioning (#2) and Reliance Heating, Air Conditioning & Plumbing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Gananoque work on weekends?

25 of 52 ranked HVAC contractors post Saturday hours and 22 post Sunday hours. The highest-ranked open Saturdays are Kingston Home Services by Enercare (#1), Haven Home Heating and Air Conditioning (#2) and Reliance Heating, Air Conditioning & Plumbing (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Gananoque?

AC replacement typically costs CA$5,460 to CA$11,350, with CA$8,400 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)). This is a national range, not adjusted for Gananoque. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Gananoque HVAC contractors have?

The median Google rating among 52 rated HVAC contractors in Gananoque is 4.8★, with a median of 30 reviews. Reliance Heating, Air Conditioning & Plumbing has the most, 4,101 reviews, and ranks #3. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Gananoque?

In Ontario, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.

How does ContractorsRanked rank HVAC contractors?

Each HVAC contractor gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Gananoque

  1. October 2026: CR Scores recalculated for 52 hvac contractors serving Gananoque.

More HVAC contractors and Gananoque pages

Other trades in Gananoque