Top-Rated Heat Pump Installers in Oshawa, ON
13 local companies ranked by 9,458 Google reviews. Free to compare, no sign-up.
Short answer: The top-rated heat pump installers in Oshawa are Sentinel Heating & Cooling (5.0★, 111 reviews), LFZ Heating & Cooling (4.9★, 206 reviews), Cassar Heating & Air Conditioning (5.0★, 57 reviews).
Heat Pump installers in Oshawa, ranked
- 5.0 (111 Google reviews)62 Cromwell Ave, Oshawa, ON L1J 4T6
- 4.9 (206 Google reviews)1318 Apollo St, Oshawa, ON L1K 3E6
- 5.0 (57 Google reviews)Oshawa, ON L1G 6C3
- 5.0 (52 Google reviews)21 Simcoe St S, Oshawa, ON L1H 4G1
- 5.0 (52 Google reviews)21 Simcoe St S, Oshawa, ON L1H 4G1
- 5.0 (51 Google reviews)303 Wilson Rd N, Oshawa, ON L1G 6E4
- Reliance Heating, Air Conditioning & PlumbingMost reviews4.8 (7,899 Google reviews)1155 Boundary Rd Unit 8, Oshawa, ON L1J 6Z7
- 4.9 (74 Google reviews)Oshawa, ON L1J 1G8
- 4.8 (706 Google reviews)501 Ritson Rd S Unit 1, Oshawa, ON L1H 3B5
- 5.0 (32 Google reviews)384 Athol St E, Oshawa, ON L1H 1L1
- 4.9 (53 Google reviews)202 King St E Unit 11, Oshawa, ON L1H 1C4
- 5.0 (29 Google reviews)1049 Schooling Dr, Oshawa, ON L1K 0N9
- 4.8 (136 Google reviews)415 Pompano Ct, Oshawa, ON L1K 1M9
Together these 13 companies average 4.8★ across 9,458 reviews. Reliance Heating, Air Conditioning & Plumbing has the most reviews (7,899).
Ranked by Google rating weighted by review count, collected September 2026. Rankings are not paid for. How we rank and how we make money.
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What a heat pump costs in Oshawa
For a cold-climate central ducted heat pump in a detached house. Your home may cost more or less.
That could cut your cost by up to $12,000 if you qualify. Most rebates have rules (income, your current heating, a registered contractor, approval before work starts).
Price source: Canadian Climate Institute and Dunsky, Heat Pumps Pay Off (2023 dollars, modelled for Vancouver, Edmonton, Toronto, Montréal and Halifax). Rebates: our verified program data, checked monthly. Always confirm the exact amount for your home.
Talk to a registered energy advisor first. Some rebates need an evaluation or heat load calculation before any work starts. See the top-rated registered energy advisors in Oshawa. Read when to call an energy advisor.
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What Oshawa's winter means for your heat pump
In Oshawa, the average January low is -7°C, and the coldest temperature recorded from 2015-2024 was -25°C. That's milder than 30% of the 123 cities we track. Choose a cold-climate model, and compare heating output at -20°C, not just at mild temperatures. Keeping some backup heat for rare deep-cold snaps is common and sensible.
Source: Open-Meteo historical weather data, 2015-2024.
Before you hire a heat pump installer
- Ask for a room-by-room heat loss calculation. A quote that guesses the size from square footage alone is a red flag.
- Ask for the exact model and its heating output at your area's coldest temperature, not just the brand.
- Ask who handles the rebate paperwork and whether the model is on your rebate program's eligible list.
Questions about heat pump installers in Oshawa
Who is the best heat pump installer in Oshawa?
Based on Google reviews, the top-rated heat pump installers in Oshawa are Sentinel Heating & Cooling (5.0★, 111 reviews), LFZ Heating & Cooling (4.9★, 206 reviews), Cassar Heating & Air Conditioning (5.0★, 57 reviews). We rank by a review-weighted score, so companies with many strong reviews rank above those with only a few.
How are the heat pump installers in Oshawa ranked?
We list 13 heat pump companies in Oshawa, ranked by Google rating weighted by review count. Together they have 9,458 Google reviews and average 4.8 stars, collected September 2026. Reliance Heating, Air Conditioning & Plumbing has the most reviews (7,899). No company pays to be listed or ranked.
How much does a heat pump installation cost in Oshawa?
For a cold-climate central ducted heat pump in a detached house, the installed price is typically about $12,000 to $20,000, according to Canadian Climate Institute and Dunsky, Heat Pumps Pay Off (2023 dollars, modelled for Vancouver, Edmonton, Toronto, Montréal and Halifax). Your home may cost more or less, so get at least two quotes for the same work.
Are there rebates for heat pumps in Oshawa?
Yes. Our verified program data shows heat pump rebates up to $12,000 open in Oshawa. Most rebates have rules, such as income, your current heating, a registered contractor, or approval before work starts, so check the rebate page before you sign.
Is Oshawa too cold for a heat pump?
In Oshawa, the average January low is -7°C, and the coldest temperature recorded from 2015-2024 was -25°C. That's milder than 30% of the 123 cities we track. Choose a cold-climate model, and compare heating output at -20°C, not just at mild temperatures. Keeping some backup heat for rare deep-cold snaps is common and sensible.
What should I ask a heat pump installer before I hire?
Ask for a room-by-room heat loss calculation. A quote that guesses the size from square footage alone is a red flag. Ask for the exact model and its heating output at your area's coldest temperature, not just the brand. Ask who handles the rebate paperwork and whether the model is on your rebate program's eligible list.
Before you call anyone, check what heat pump rebates you can get in Oshawa. Many programs require approval or a registered contractor before work starts.
Planning more upgrades? See the top-rated insulation installers, home battery installers, energy advisors in Oshawa.
How to read these results
- Open the profile.How a installer describes its own work tells you a lot. Look for jobs like yours.
- Read the Google reviews.Stars and counts come from Google Maps. Click through and read what past customers wrote, good and bad.
- Check for program badges.A green registered-contractor badge means the company is on the program's own list, which some rebates require.
- Compare three.Do not stop at the first good installer. Three quotes show you the real range in price, equipment and plan.
Not ready to talk to a contractor yet?
Short reads and quick quizzes. Learn the rules first, then call.
Questions to ask99 Questions That Make a Heat Pump Installer Sweat (In a Good Way)
QuizMyth or true?Heat Pump Myths, Busted: 6 Things Your Brother-in-Law Got Wrong
Ways to lose it77 Sneaky Ways to Lose Your Rebate (and the Easy Fix for Each)
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