68/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,166 Google reviews, the most in Duncan.
- 4.8★ from 1,166 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5797 Duncan St Unit A, Duncan, BC V9L 3W6
Best HVAC Contractors in Duncan, BC (2026)
81 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Duncan: The Comfort Group, CR Score 68/100; 4.8★ from 1,166 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Westisle Heating & Cooling, posts 24/7 hours; ranked #2 of 81.
- 2
Most-reviewed: Westisle Heating & Cooling, 543 Google reviews at 4.8★, the most of 81 ranked after The Comfort Group; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
81 Duncan HVAC contractors are ranked here by CR Score, from ten published factors. 21 are open 24/7, 29 open Saturdays and 23 open Sundays, based on posted hours. The median Google rating is 4.9★ across 81 rated businesses.
Top 10 HVAC contractors in Duncan at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | The Comfort Group | 68 | 4.8★ (1,166) | Duncan | 24/7 | Overall |
| 2 | Westisle Heating & Cooling | 66 | 4.8★ (543) | Duncan | 24/7 | Emergencies, Most reviews |
| 3 | Exchangenergy HVAC and Air Conditioning | 66 | 5.0★ (211) | Duncan | 24/7 | — |
| 4 | Coastal Heat Pumps | 65 | 5.0★ (123) | Duncan | 24/7 | — |
| 5 | BlueTide Heating & Cooling | 61 | 5.0★ (21) | North Cowichan, 2 km away | 24/7 | — |
| 6 | Aire Serv of Greater Victoria | 61 | 4.8★ (543) | Victoria, 37 km away | 24/7 | — |
| 7 | Island Wise Heat Pumps & Gas | 60 | 5.0★ (16) | Salt Spring Island, 2 km away | 24/7 | — |
| 8 | Sub Zero Heating & Cooling Ltd | 59 | 5.0★ (106) | Duncan | — | — |
| 9 | Purple Turtle Heat Pumps, HVAC & Electrical | 58 | 4.9★ (89) | Duncan | — | — |
| 10 | Hart Mechanical Services | 58 | 5.0★ (4) | Duncan | 24/7 | — |
The 81 best HVAC contractors in Duncan, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Duncan
66/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 543 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 543 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2939 Boys Rd, Duncan, BC V9L 6W4
Based in Duncan
66/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 211 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 211 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6193 Scott Rd Unit 101, Duncan, BC V9L 6X8
Based in Duncan
65/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 123 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 123 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in North Cowichan, 2 km away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 21 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5802 Banks Rd, North Cowichan, BC V9L 1L2
Based in Victoria, 37 km away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 543 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 543 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1985 Millstream Rd, Victoria, BC V9B 0E3
Based in Salt Spring Island, 2 km away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Duncan
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 106 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 106 Google reviews
- Hours
- Mon–Thu 7 AM–4 PM · Fri–Sun closed
- Address
- 636 Charlotte St, Duncan, BC V9L 2V6
Based in Duncan
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 89 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 89 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 5136 Polkey Rd, Duncan, BC V9L 6W3
Based in Duncan
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4715 Trans-Canada Hwy #10, Duncan, BC V9L 6E1
Based in Duncan
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.5★ from 93 Google reviews, listed on Google as “Plumber”.
- 4.5★ from 93 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Trans-Canada Hwy #4705, Duncan, BC V9L 6E1
Based in Duncan
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 34 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 34 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat 9 AM–2 PM · Sun closed
- Address
- 361 Trans-Canada Hwy #4, Duncan, BC V9L 3R5
Based in Ladysmith, 31 km away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 43 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 43 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5424 Carmichael Rd, Ladysmith, BC V9G 1L8
Based in Colwood, 12 km away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 58 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 58 Google reviews
- Hours
- Mon–Fri 7:30 AM–7 PM · Sat 8 AM–5 PM · Sun closed
#15 JDL Heat Pumps
Based in Salt Spring Island, 5 km away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Salt Spring Island, 28 km away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 400 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 400 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
Based in Salt Spring Island, 17 km away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 122 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 122 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 315 Upper Ganges Rd #18, Salt Spring Island, BC V8K 2X4
Based in Salt Spring Island, 27 km away
56/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 317 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 317 Google reviews
- Hours
- Mon–Fri 8:30 AM–4 PM · Sat–Sun closed
- Address
- 9843 Second St #11, Sidney, BC V8L 3C7
Based in North Saanich, 29 km away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 40 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
- Address
- 1951 Jeffree Rd, Saanichton, BC V8M 1K1
Based in Victoria, 30 km away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 34 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun 9 AM–5 PM
- Address
- Stn Main, 7835 E Saanich Rd, Victoria, BC V8M 2C3
#21 Refined HVAC Ltd
Based in North Cowichan, 10 km away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 37 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1500 Anchor Rd, Crofton, BC V0R 1R0
Based in Ladysmith, 25 km away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Heating contractor”.
- 4.9★ from 171 Google reviews
- Hours
- Mon–Fri 9:30 AM–4:30 PM · Sat–Sun closed
- Address
- 528 1st Ave, Ladysmith, BC V9G 1A8
Based in Nanaimo, 19 km away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Salt Spring Island, 17 km away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.2★ from 15 Google reviews, listed on Google as “HVAC contractor”.
- 4.2★ from 15 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
Based in Langford, 40 km away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 23 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 961 Dunford Ave #106, Langford, BC V9B 2S4
HVAC contractors ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 81 ranked HVAC contractors here; the rest are on their profiles.
Also serving Duncan
20 more HVAC contractors within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| BR Ventilation Ltd. | 39 km | |
| Comfort Guides - Heating | In Duncan | |
| D Parrott Plumbing & Heating | 5.0★ (1) | 29 km |
| D.MURRAY HEATING LTD | 40 km | |
| Dillon's Plumbing and Heating Nanaimo | 31 km | |
| Envirotemp Heat Pumps | 5.0★ (1) | 33 km |
| Fairway Plumbing & Heating Co Ltd | 5.0★ (2) | 40 km |
| goldstream mechanical | 5 km | |
| Intech Air - AC Installation in Victoria | 5.0★ (1) | 27 km |
| Island Boiler & Hot Water Co. | 4 km | |
| LD Plumbing & Heating | 4.3★ (86) | 25 km |
| M & R Plumbing & Heating | 38 km | |
| Malcolm's Electrical Contracting Ltd | 4.6★ (30) | 26 km |
| Menzies Plumbing & Heating | 5.0★ (5) | 20 km |
| Mill Bay Welding Company | 5.0★ (1) | 5 km |
| Pro Desk at RONA | 13 km | |
| Sahtlam Services | 29 km | |
| Silavwe | 38 km | |
| Victoria Total Comfort | 22 km | |
| Westwind Mechanical Ltd. | 32 km |
How much do HVAC contractors cost in Duncan?
US national ranges converted to CAD, not adjusted for Duncan. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | CA$5,460 | CA$8,400 | CA$11,350 | 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) | October 2026 |
| Furnace replacement | CA$3,970 | CA$6,770 | CA$9,690 | Per 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 British Columbia
British Columbia's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
How we ranked Duncan HVAC contractors
We scored 81 Duncan 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.
| Factor | Weight | Computed from | In Duncan data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
HVAC contractors in Duncan: frequently asked questions
Who is the best HVAC contractor in Duncan?
By CR Score, the highest-ranked HVAC contractor in Duncan, BC is The Comfort Group with a CR Score of 68/100. It has 4.8★ from 1,166 Google reviews. It is open 24/7. Westisle Heating & Cooling (#2) and Exchangenergy HVAC and Air Conditioning (#3) follow. We ranked 81 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Duncan?
ContractorsRanked ranks 81 HVAC contractors serving Duncan, BC. 16 of them are based in Duncan; the rest serve it from nearby towns. Another 20 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Duncan are open 24/7?
21 ranked HVAC contractors in Duncan post 24/7 hours. The highest-ranked are The Comfort Group (#1), Westisle Heating & Cooling (#2) and Exchangenergy HVAC and Air Conditioning (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Duncan work on weekends?
29 of 81 ranked HVAC contractors post Saturday hours and 23 post Sunday hours. The highest-ranked open Saturdays are The Comfort Group (#1), Westisle Heating & Cooling (#2) and Exchangenergy HVAC and Air Conditioning (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Duncan?
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 Duncan. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Duncan HVAC contractors have?
The median Google rating among 81 rated HVAC contractors in Duncan is 4.9★, with a median of 23 reviews. The Comfort Group has the most, 1,166 reviews, and ranks #1. 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 Duncan?
British Columbia's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
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 Duncan
- October 2026: CR Scores recalculated for 81 hvac contractors serving Duncan.
- October 2026: 1 duplicate listing merged.
More HVAC contractors and Duncan pages
HVAC contractors near Duncan
- HVAC contractors in North Cowichan, BC73 ranked
- HVAC contractors in Salt Spring Island, BC75 ranked
- HVAC contractors in Ganges, BC74 ranked
- HVAC contractors in North Saanich, BC130 ranked
- HVAC contractors in Ladysmith, BC79 ranked
- HVAC contractors in Langford, BC123 ranked
- HVAC contractors in Colwood, BC122 ranked
- HVAC contractors in Sooke, BC113 ranked
- HVAC contractors in Nanaimo, BC73 ranked
- HVAC contractors in Victoria, BC114 ranked
Other trades in Duncan
- Roofers in Duncan133 ranked
- Plumbers in Duncan87 ranked
- Electricians in Duncan79 ranked
- General contractors in Duncan90 ranked
- Painters in Duncan23 ranked
- Landscapers in Duncan37 ranked
- Handymen in Duncan5 ranked
- Kitchen remodelers in Duncan42 ranked
- Bathroom remodelers in Duncan44 ranked
- Flooring contractors in Duncan30 ranked
- Tile installers in Duncan11 ranked
- Concrete contractors in Duncan27 ranked
- Fence contractors in Duncan29 ranked
- Deck builders in Duncan29 ranked
- Siding contractors in Duncan40 ranked
- Window installers in Duncan81 ranked
- Gutter installers in Duncan51 ranked
- Insulation contractors in Duncan9 ranked
- Solar installers in Duncan34 ranked
- Foundation repair companies in Duncan21 ranked
- Tree services in Duncan42 ranked
- Masonry contractors in Duncan25 ranked
- Water damage restoration companies in Duncan70 ranked
- Home builders in Duncan169 ranked
- Demolition contractors in Duncan16 ranked
- All contractors in Duncan