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Best HVAC Contractors in Storm Lake, IA (2026)

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

The short answer

  1. 1

    Best overall in Storm Lake: Modern Heating & Cooling, CR Score 55/100; 4.6★ from 48 Google reviews.

  2. 4

    Most-reviewed: Wiese Plumbing & Heating Inc, 15 Google reviews at 2.9★, the most of 5 ranked after Modern Heating & Cooling; ranked #4.

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

5 Storm Lake HVAC contractors are ranked here by CR Score, from ten published factors. 1 open Saturdays, based on posted hours. The median Google rating is 3.9★ across 5 rated businesses.

Top 5 HVAC contractors in Storm Lake at a glance

Top 5 HVAC contractors in Storm Lake at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Modern Heating & Cooling554.6★ (48)Cherokee, 19 mi away—Overall
2Denny's Service Heating, Air conditioning, and Plumbing524.4★ (13)Cherokee, 19 mi awaySat—
3Keller Plumbing Heating & Air502.0★ (4)Storm Lake——
4Wiese Plumbing & Heating Inc492.9★ (15)Storm Lake—Most reviews
5Hawk-I Plumbing, Inc.483.9★ (14)Storm Lake——

The 5 best HVAC contractors in Storm Lake, 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.

How much do HVAC contractors cost in Storm Lake?

National price ranges in USD, not adjusted for Storm Lake. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Storm Lake?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 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.

  1. Check that the status is active and the name matches the contract or truck.
  2. 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 Storm Lake HVAC contractors

We scored 5 Storm Lake 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 Storm Lake 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 Storm Lake: frequently asked questions

Who is the best HVAC contractor in Storm Lake?

By CR Score, the highest-ranked HVAC contractor in Storm Lake, IA is Modern Heating & Cooling with a CR Score of 55/100. It has 4.6★ from 48 Google reviews. Denny's Service Heating, Air conditioning, and Plumbing (#2) and Keller Plumbing Heating & Air (#3) follow. We ranked 5 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Storm Lake?

ContractorsRanked ranks 5 HVAC contractors serving Storm Lake, IA. 3 of them are based in Storm Lake; the rest serve it from nearby towns. Counts are as of October 2026.

Which HVAC contractors in Storm Lake work on weekends?

1 of 5 ranked HVAC contractors post Saturday hours. The highest-ranked open Saturdays is Denny's Service Heating, Air conditioning, and Plumbing (#2). 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 Storm Lake?

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 Storm Lake. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Storm Lake HVAC contractors have?

The median Google rating among 5 rated HVAC contractors in Storm Lake is 3.9★, with a median of 14 reviews. Modern Heating & Cooling has the most, 48 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 Storm Lake?

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 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 Storm Lake

  1. October 2026: CR Scores recalculated for 5 hvac contractors serving Storm Lake.