64/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 261 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 261 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 708 Schilling Dr, Dundas, MN 55019
Best HVAC Contractors in Northfield, MN (2026)
106 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Northfield: Streitz Heating & Cooling, CR Score 64/100; 5.0★ from 261 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): On Time Service Pros Heating and Air, posts 24/7 hours; ranked #2 of 106.
- 6
Most-reviewed: Genz-Ryan Heating, Cooling, Plumbing, & Electrical, 7,458 Google reviews at 4.7★, the most of 106 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
106 Northfield HVAC contractors are ranked here by CR Score, from ten published factors. 33 are open 24/7, 50 open Saturdays and 43 open Sundays, based on posted hours. The median Google rating is 4.9★ across 106 rated businesses.
Top 10 HVAC contractors in Northfield at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Streitz Heating & Cooling | 64 | 5.0★ (261) | Northfield | 24/7 | Overall |
| 2 | On Time Service Pros Heating and Air | 63 | 4.9★ (5,237) | Rosemount, 19 mi away | 24/7 | Emergencies |
| 3 | One Hour Heating and Air Conditioning SouthSota | 63 | 4.9★ (147) | Northfield | 24/7 | — |
| 4 | On Time Service Pros Plumbing | 62 | 4.9★ (3,393) | Rosemount, 19 mi away | 24/7 | — |
| 5 | Home Care Heating and Air | 62 | 4.9★ (92) | Northfield | 24/7 | — |
| 6 | Genz-Ryan Heating, Cooling, Plumbing, & Electrical | 61 | 4.7★ (7,458) | Burnsville, 23 mi away | 24/7 | Most reviews |
| 7 | Metro Air Heating & Cooling | 61 | 4.9★ (1,224) | New Prague, 21 mi away | 24/7 | — |
| 8 | Hurlburt Heating & Plumbing | 60 | 4.9★ (1,312) | Burnsville, 21 mi away | 24/7 | — |
| 9 | Kelly Family HVAC | 60 | 5.0★ (28) | Northfield | 24/7 | — |
| 10 | Better Air Inc. | 60 | 4.7★ (39) | Northfield | 24/7 | — |
The 106 best HVAC contractors in Northfield, 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 Rosemount, 19 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 5,237 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 5,237 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15191 Boulder Ct #1, Rosemount, MN 55068
Based in Northfield
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 147 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 147 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 32018 Dahomey Ave, Northfield, MN 55057
Based in Rosemount, 19 mi away
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 3,393 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 3,393 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15191 Boulder Ct #2, Rosemount, MN 55068
Based in Northfield
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 92 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 92 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 205 Water St S Suite 11, Northfield, MN 55057
Based in Burnsville, 23 mi away
61/100CR ScoreRanked #6 because of its Google rating and review volume: 4.7★ from 7,458 Google reviews, the most in Northfield.
- 4.7★ from 7,458 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2200 Hwy 13 W, Burnsville, MN 55337
Based in New Prague, 21 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 1,224 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,224 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 436 Main St. W, New Prague, MN 56071
Based in Burnsville, 21 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 1,312 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,312 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3501 W 145th St Suite A, Burnsville, MN 55306
Based in Northfield
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 28 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10150 Dundas Blvd, Dundas, MN 55019
#10 Better Air Inc.
Based in Northfield
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 39 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 39 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 607 Stafford Ln, Dundas, MN 55019
Based in Rosemount, 18 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 445 Google reviews, listed on Google as “Heating contractor”.
- 4.9★ from 445 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 16136 Excelsior Ct, Rosemount, MN 55068
Based in Burnsville, 21 mi away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 291 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 291 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 14450 Ewing Ave S Suite 150, Burnsville, MN 55306
Based in Savage, 23 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 1,112 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 1,112 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 10 AM–3 PM · Sun 10 AM–4 PM
- Address
- 6100 McColl Dr Unit 214, Savage, MN 55378
Based in Burnsville, 21 mi away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 296 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.9★ from 296 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3713 County Rd 42 W, Burnsville, MN 55306
Based in Apple Valley, 19 mi away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 221 Google reviews, listed on Google as “Heating contractor”.
- 4.8★ from 221 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5885 149th St W # 101, Apple Valley, MN 55124
#16 Chimney Doctors
Based in Burnsville, 21 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 638 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 638 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun 8 AM–8 PM
- Address
- 14450 Ewing Ave S #100, Burnsville, MN 55306
Based in Faribault, 8 mi away
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2724 158th St E, Faribault, MN 55021
Based in Faribault, 8 mi away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.4★ from 22 Google reviews, listed on Google as “HVAC contractor”.
- 4.4★ from 22 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Farmington, 12 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 624 4th St, Farmington, MN 55024
Based in Jordan, 21 mi away
56/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 139 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 139 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Rosemount, 19 mi away
56/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 978 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 978 Google reviews
- Hours
- Mon–Fri 7:30 AM–5:30 PM · Sat–Sun closed
- Address
- 12086 Biscayne Ave, Rosemount, MN 55068
Based in Apple Valley, 19 mi away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.6★ from 69 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 69 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6935 146th St W # 3, Apple Valley, MN 55124
Based in Burnsville, 21 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 39 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2500 County Rd 42 W, Burnsville, MN 55337
Based in Prior Lake, 21 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 40 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 17205 Adelmann St SE Unit 312, Prior Lake, MN 55372
Based in Northfield
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 12 Google reviews, listed on Google as “Heating contractor”.
- 4.8★ from 12 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 405 Oxford St N, Northfield, MN 55057
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 106 ranked HVAC contractors here; the rest are on their profiles.
Also serving Northfield
20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Action Air Systems LLC | 21 mi | |
| Air Conditioning & Heating Repair Pros of Savage | 5.0★ (2) | 23 mi |
| Applied Air System's Inc | 3.0★ (1) | 13 mi |
| Bauer Plumbing & Heating | 5.0★ (1) | 13 mi |
| Bauer Plumbing & Heating | 13 mi | |
| Benjamin Franklin Plumbing | 4.9★ (952) | In Northfield |
| Brian's Heating & Mechanical LLC | 5.0★ (4) | 13 mi |
| CoolSys | 5.0★ (1) | 13 mi |
| Dual Air Inc. | 5.0★ (30) | 23 mi |
| Erlings Heating | In Northfield | |
| Harris | In Northfield | |
| Jim Keilen Plumbing & Heating | 4.8★ (23) | 13 mi |
| Kulla Heating & Air Inc | 4.5★ (31) | 21 mi |
| Legend Companies | 4.3★ (11) | 24 mi |
| Nordic Mechanical Services | 4.3★ (6) | 23 mi |
| The HVAC Team of Lakeville | 5.0★ (2) | 15 mi |
| Tompkins Electrical Contracting | 3.4★ (5) | 18 mi |
| VETERAN MECHANICAL HEATING AND AIR CONDITIONING | 3.7★ (3) | 20 mi |
| Walter Mechanical, Inc. | 5.0★ (1) | 23 mi |
| Warm Comfort Insulation | 5.0★ (3) | 15 mi |
How much do HVAC contractors cost in Northfield?
National price ranges in USD, not adjusted for Northfield. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
When to hire an HVAC contractor in Minnesota
In Minnesota, 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 Northfield HVAC contractors
We scored 106 Northfield 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 Northfield 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 Northfield: frequently asked questions
Who is the best HVAC contractor in Northfield?
By CR Score, the highest-ranked HVAC contractor in Northfield, MN is Streitz Heating & Cooling with a CR Score of 64/100. It has 5.0★ from 261 Google reviews. It is open 24/7. On Time Service Pros Heating and Air (#2) and One Hour Heating and Air Conditioning SouthSota (#3) follow. We ranked 106 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Northfield?
ContractorsRanked ranks 106 HVAC contractors serving Northfield, MN. 8 of them are based in Northfield; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Northfield are open 24/7?
33 ranked HVAC contractors in Northfield post 24/7 hours. The highest-ranked are Streitz Heating & Cooling (#1), On Time Service Pros Heating and Air (#2) and One Hour Heating and Air Conditioning SouthSota (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Northfield work on weekends?
50 of 106 ranked HVAC contractors post Saturday hours and 43 post Sunday hours. The highest-ranked open Saturdays are Streitz Heating & Cooling (#1), On Time Service Pros Heating and Air (#2) and One Hour Heating and Air Conditioning SouthSota (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Northfield?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Northfield. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Northfield HVAC contractors have?
The median Google rating among 106 rated HVAC contractors in Northfield is 4.9★, with a median of 28 reviews. Genz-Ryan Heating, Cooling, Plumbing, & Electrical has the most, 7,458 reviews, and ranks #6. 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 Northfield?
In Minnesota, 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 Northfield
- October 2026: CR Scores recalculated for 106 hvac contractors serving Northfield.
More HVAC contractors and Northfield pages
HVAC contractors near Northfield
- HVAC contractors in Faribault, MN46 ranked
- HVAC contractors in Farmington, MN346 ranked
- HVAC contractors in Lakeville, MN370 ranked
- HVAC contractors in Apple Valley, MN467 ranked
- HVAC contractors in Rosemount, MN449 ranked
- HVAC contractors in New Prague, MN162 ranked
- HVAC contractors in Prior Lake, MN417 ranked
- HVAC contractors in Burnsville, MN515 ranked
- HVAC contractors in Savage, MN521 ranked
- HVAC contractors in Eagan, MN532 ranked
Other trades in Northfield
- Roofers in Northfield538 ranked
- Plumbers in Northfield86 ranked
- Electricians in Northfield68 ranked
- General contractors in Northfield149 ranked
- Painters in Northfield23 ranked
- Landscapers in Northfield30 ranked
- Handymen in Northfield10 ranked
- Kitchen remodelers in Northfield81 ranked
- Bathroom remodelers in Northfield81 ranked
- Flooring contractors in Northfield76 ranked
- Tile installers in Northfield9 ranked
- Drywall contractors in Northfield9 ranked
- Concrete contractors in Northfield77 ranked
- Fence contractors in Northfield23 ranked
- Deck builders in Northfield69 ranked
- Siding contractors in Northfield317 ranked
- Window installers in Northfield277 ranked
- Gutter installers in Northfield46 ranked
- Insulation contractors in Northfield24 ranked
- Solar installers in Northfield41 ranked
- Garage door repair companies in Northfield28 ranked
- Foundation repair companies in Northfield41 ranked
- Tree services in Northfield75 ranked
- Masonry contractors in Northfield28 ranked
- Water damage restoration companies in Northfield247 ranked
- Home builders in Northfield300 ranked
- Demolition contractors in Northfield13 ranked
- All contractors in Northfield