96/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 8,128 Google reviews, open 24/7.
- 4.9★ from 8,128 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5670 NW Beaver Dr, Johnston, IA 50131
Best HVAC Contractors in Johnston, IA (2026)
121 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Johnston: Schaal Plumbing, Heating and Cooling, CR Score 96/100; 4.9★ from 8,128 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Kohles & Bach Heating & Cooling, posts 24/7 hours; ranked #2 of 121.
- 10
Most-reviewed: Golden Rule Plumbing, Heating, Cooling & Electrical, 9,136 Google reviews at 4.9★, the most of 121 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
121 Johnston HVAC contractors are ranked here by CR Score, from 8 published factors. 51 are open 24/7, 66 open Saturdays and 65 open Sundays, based on posted hours. The median Google rating is 4.8★ across 121 rated businesses.
Most of this list also appears on the HVAC contractors in Des Moines ranking. See HVAC contractors in Des Moines
Top 10 HVAC contractors in Johnston at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Schaal Plumbing, Heating and Cooling | 96 | 4.9★ (8,128) | Johnston | 24/7 | Overall |
| 2 | Kohles & Bach Heating & Cooling | 94 | 4.9★ (2,360) | Johnston | 24/7 | Emergencies |
| 3 | Service Legends Heating & Cooling, Plumbing & Electrical | 94 | 4.9★ (5,373) | Des Moines, 5 mi away | 24/7 | — |
| 4 | Greens Appliance, Heating & Cooling | 94 | 4.9★ (3,935) | Grimes, 4 mi away | 24/7 | — |
| 5 | Bell Brothers Heating, Cooling & Plumbing | 94 | 4.9★ (3,734) | Des Moines, 5 mi away | 24/7 | — |
| 6 | Lenz Heating & Cooling | 93 | 4.9★ (1,802) | Urbandale, 3 mi away | 24/7 | — |
| 7 | True Comfort Heating, Cooling and Plumbing | 93 | 5.0★ (983) | Des Moines, 5 mi away | 24/7 | — |
| 8 | Des Moines Comfort | 92 | 5.0★ (1,014) | Des Moines, 9 mi away | 24/7 | — |
| 9 | Holt Plumbing & Heating, Inc. | 92 | 4.8★ (3,343) | Des Moines, 8 mi away | 24/7 | — |
| 10 | Golden Rule Plumbing, Heating, Cooling & Electrical | 92 | 4.9★ (9,136) | Grimes, 5 mi away | Sat · Sun · Evenings | Most reviews |
The 121 best HVAC contractors in Johnston, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Johnston
94/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 2,360 Google reviews, open 24/7.
- 4.9★ from 2,360 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5185 NW Beaver Dr, Johnston, IA 50131
Based in Des Moines, 5 mi away
94/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 5,373 Google reviews, open 24/7.
- 4.9★ from 5,373 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6365 NE 14th St BLDG B, Des Moines, IA 50313
Based in Grimes, 4 mi away
94/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 3,935 Google reviews, open 24/7.
- 4.9★ from 3,935 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3400 SE Crossroads Dr Suite 100, Grimes, IA 50111
Based in Des Moines, 5 mi away
94/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 3,734 Google reviews, open 24/7.
- 4.9★ from 3,734 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2822 6th Ave, Des Moines, IA 50313
Based in Urbandale, 3 mi away
93/100CR ScoreRanked #6 because of its Google rating and availability: 4.9★ from 1,802 Google reviews, open 24/7.
- 4.9★ from 1,802 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7641 Douglas Ave, Urbandale, IA 50322
Based in Des Moines, 5 mi away
93/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 983 Google reviews, open 24/7.
- 5.0★ from 983 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 505 Sheridan Ave, Des Moines, IA 50313
Based in Des Moines, 9 mi away
92/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 1,014 Google reviews, open 24/7.
- 5.0★ from 1,014 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2703 E Grand Ave, Des Moines, IA 50317
Based in Des Moines, 8 mi away
92/100CR ScoreRanked #9 because of its Google rating and availability: 4.8★ from 3,343 Google reviews, open 24/7.
- 4.8★ from 3,343 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1202 Thomas Beck Rd Suite 101, Des Moines, IA 50315
Based in Grimes, 5 mi away
92/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 9,136 Google reviews, the most Google reviews on this list (9,136).
- 4.9★ from 9,136 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun 8 AM–4:30 PM
- Address
- 904 NE Main St, Grimes, IA 50111
Based in West Des Moines, 8 mi away
92/100CR ScoreRanked #11 because of its Google rating and availability: 4.9★ from 1,545 Google reviews, open 24/7.
- 4.9★ from 1,545 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 536 S 19th St, West Des Moines, IA 50265
Based in Des Moines, 6 mi away
92/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 566 Google reviews, open 24/7.
- 5.0★ from 566 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1523 E Madison Ave, Des Moines, IA 50313
Based in Des Moines, 6 mi away
91/100CR ScoreRanked #13 because of its Google rating and availability: 4.9★ from 830 Google reviews, open 24/7.
- 4.9★ from 830 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1567 Ohio St, Des Moines, IA 50314
Based in Ankeny, 6 mi away
91/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 670 Google reviews, open 24/7.
- 4.9★ from 670 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 811 SW Ordnance Rd, Ankeny, IA 50023
Based in Grimes, 4 mi away
90/100CR ScoreRanked #15 because of its Google rating and availability: 4.9★ from 246 Google reviews, open 24/7.
- 4.9★ from 246 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3000 SE Destination Dr #11, Grimes, IA 50111
Based in Grimes, 4 mi away
90/100CR ScoreRanked #16 because of its Google rating and availability: 4.8★ from 356 Google reviews, open 24/7.
- 4.8★ from 356 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3155 SE Miehe Dr Suite 1, Grimes, IA 50111
Based in Des Moines, 11 mi away
90/100CR ScoreRanked #17 because of its Google rating and availability: 4.9★ from 668 Google reviews, open 24/7.
- 4.9★ from 668 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1034 Army Post Rd, Des Moines, IA 50315
Based in Des Moines, 6 mi away
89/100CR ScoreRanked #18 because of its Google rating and availability: 4.9★ from 145 Google reviews, open 24/7.
- 4.9★ from 145 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1955 NE 58th Ave Suite 304, Des Moines, IA 50313
Based in Des Moines, 5 mi away
89/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 79 Google reviews, open 24/7.
- 5.0★ from 79 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5727 NE 16th St Suite B, Des Moines, IA 50313
Based in Ankeny, 6 mi away
89/100CR ScoreRanked #20 because of its Google rating and availability: 4.8★ from 206 Google reviews, open 24/7.
- 4.8★ from 206 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 128 SE Shurfine Dr, Ankeny, IA 50021
Based in Des Moines, 8 mi away
88/100CR ScoreRanked #21 because of its Google rating and availability: 4.8★ from 308 Google reviews, open 24/7.
- 4.8★ from 308 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3517 Hubbell Ave, Des Moines, IA 50317
Based in Clive, 10 mi away
88/100CR ScoreRanked #22 because of its Google rating and availability: 4.7★ from 507 Google reviews, open 24/7.
- 4.7★ from 507 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 30033 Zippy Dr, Dallas Center, IA 50063
Based in Ankeny, 2 mi away
88/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 186 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 186 Google reviews
- Hours
- Mon–Fri 7:30 AM–7 PM · Sat 9 AM–5 PM · Sun 7:30 AM–5 PM
Based in Waukee, 13 mi away
87/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 119 Google reviews, open 24/7.
- 5.0★ from 119 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 810 Interstate Pkwy suite 141, Waukee, IA 50263
#25 Aspen Aire Inc.
Based in Ankeny, 6 mi away
87/100CR ScoreRanked #25 because of its Google rating and availability: 4.6★ from 229 Google reviews, open 24/7.
- 4.6★ from 229 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 807 SW Des Moines St UNIT 103, Ankeny, IA 50023
HVAC contractors ranked #26 to #41
#1 to #25 are shown in full above. Here are #26 to #41, in CR Score order; each links to its profile. We publish the top 41 of 121 ranked HVAC contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Air Support Inc. Heating & Air Conditioning | 87 | 5.0★ (36) | In Johnston |
| 41 | Iowa All Pro Heating & Cooling | 82 | 4.9★ (190) | 6 mi |
How much do HVAC contractors cost in Johnston?
National price ranges in USD, not adjusted for Johnston. 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 |
How to check an HVAC contractor's license in Iowa
In Iowa, Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals and Licensing) licenses Mechanical (HVAC, refrigeration, hydronic) licenses.
- Check that the status is active and the name matches the contract or truck.
- Ask for proof of insurance before work starts.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
When to hire an HVAC contractor in Iowa
In Iowa, 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 Johnston HVAC contractors
We scored 121 Johnston HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Johnston data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
HVAC contractors in Johnston: frequently asked questions
Who is the best HVAC contractor in Johnston?
By CR Score, the highest-ranked HVAC contractor in Johnston, IA is Schaal Plumbing, Heating and Cooling with a CR Score of 96/100. It has 4.9★ from 8,128 Google reviews. It is open 24/7. Kohles & Bach Heating & Cooling (#2) and Service Legends Heating & Cooling, Plumbing & Electrical (#3) follow. We ranked 121 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Johnston?
ContractorsRanked ranks 121 HVAC contractors serving Johnston, IA. 3 of them are based in Johnston; the rest serve it from nearby towns. Counts are as of October 2026.
Which HVAC contractors in Johnston are open 24/7?
51 ranked HVAC contractors in Johnston post 24/7 hours. The highest-ranked are Schaal Plumbing, Heating and Cooling (#1), Kohles & Bach Heating & Cooling (#2) and Service Legends Heating & Cooling, Plumbing & Electrical (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Johnston work on weekends?
66 of 121 ranked HVAC contractors post Saturday hours and 65 post Sunday hours. The highest-ranked open Saturdays are Schaal Plumbing, Heating and Cooling (#1), Kohles & Bach Heating & Cooling (#2) and Service Legends Heating & Cooling, Plumbing & Electrical (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in Iowa?
In Iowa, Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals and Licensing) handles licensing and covers Mechanical (HVAC, refrigeration, hydronic) licenses.
How much does ac replacement cost in Johnston?
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 Johnston. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Johnston HVAC contractors have?
The median Google rating among 121 rated HVAC contractors in Johnston is 4.8★, with a median of 26 reviews. Golden Rule Plumbing, Heating, Cooling & Electrical has the most, 9,136 reviews, and ranks #10. 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 Johnston?
In Iowa, 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.
Update log for Johnston
- October 2026: CR Scores recalculated for 121 hvac contractors serving Johnston.
- October 2026: 1 duplicate listing merged.
More HVAC contractors and Johnston pages
HVAC contractors near Johnston
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- HVAC contractors in West Des Moines, IA112 ranked
- HVAC contractors in Des Moines, IA111 ranked
- HVAC contractors in Waukee, IA112 ranked
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Other trades in Johnston
- Roofers in Johnston265 ranked
- Plumbers in Johnston97 ranked
- Electricians in Johnston108 ranked
- General contractors in Johnston229 ranked
- Painters in Johnston124 ranked
- Landscapers in Johnston151 ranked
- Handymen in Johnston68 ranked
- Kitchen remodelers in Johnston110 ranked
- Bathroom remodelers in Johnston126 ranked
- Flooring contractors in Johnston98 ranked
- Tile installers in Johnston31 ranked
- Drywall contractors in Johnston30 ranked
- Concrete contractors in Johnston142 ranked
- Fence contractors in Johnston59 ranked
- Deck builders in Johnston86 ranked
- Siding contractors in Johnston144 ranked
- Window installers in Johnston109 ranked
- Gutter installers in Johnston91 ranked
- Insulation contractors in Johnston26 ranked
- Solar installers in Johnston19 ranked
- Garage door repair companies in Johnston25 ranked
- Foundation repair companies in Johnston20 ranked
- Tree services in Johnston141 ranked
- Masonry contractors in Johnston42 ranked
- Water damage restoration companies in Johnston79 ranked
- Home builders in Johnston148 ranked
- Demolition contractors in Johnston25 ranked
- All contractors in Johnston