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Best HVAC Contractors in Waterloo, IA (2026)

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

The short answer

  1. 1

    Best overall in Waterloo: Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc., CR Score 66/100; 4.7★ from 2,581 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Gubbels Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 29.

  3. 2

    Most-reviewed: Gubbels Heating & Air Conditioning, 652 Google reviews at 4.8★, the most of 29 ranked after Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc.; ranked #2.

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

29 Waterloo HVAC contractors are ranked here by CR Score, from ten published factors. 10 are open 24/7, 12 open Saturdays and 11 open Sundays, based on posted hours. The median Google rating is 4.7★ across 29 rated businesses.

Top 10 HVAC contractors in Waterloo at a glance

Top 10 HVAC contractors in Waterloo at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc.664.7★ (2,581)Cedar Falls, 5 mi away24/7Overall
2Gubbels Heating & Air Conditioning654.8★ (652)Waterloo24/7Emergencies, Most reviews
3Hansons Heating and Cooling625.0★ (161)Cedar Falls, 7 mi away24/7—
4Young Plumbing & Heating624.9★ (484)Waterloo24/7—
5Fereday Heating & Air Conditioning604.5★ (31)Waterloo24/7—
6Bergen Plumbing, Heating & Cooling594.5★ (17)Waterloo24/7—
7All Residential Services585.0★ (19)Cedar Falls, 7 mi away24/7—
8Air Services Heating, Air Conditioning and Controls584.9★ (125)Waterloo——
9Wilson Heating & Cooling584.8★ (6)Waterloo24/7—
10(Heating/Cooling/Lawncare) Alround HomeServices575.0★ (4)Waterloo24/7—

The 29 best HVAC contractors in Waterloo, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  1. Ranked #1 in Waterloo

    Based in Cedar Falls, 5 mi away

    66/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.7★ from 2,581 Google reviews, the most in Waterloo.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 2,581 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5536 Nordic Dr, Cedar Falls, IA 50613
  2. Based in Waterloo

    58/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.8★ from 6 Google reviews, listed on Google as “Heating contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 6 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    744 Ansborough Ave, Waterloo, IA 50701
  3. Based in Cedar Falls, 4 mi away

    55/100CR Score

    Ranked #14 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 4 Google reviews
    Hours
    Mon–Sun 10 AM–11 PM
  4. Based in Cedar Falls, 5 mi away

    52/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 10 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    310 Leversee Rd, Cedar Falls, IA 50613
  5. 49/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 12 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    2202 E Bremer Ave, Waverly, IA 50677
  6. Based in Waterloo

    49/100CR Score

    Ranked #21 because of its Google rating and trade focus: 3.2★ from 5 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.2★ from 5 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 8 AM–12 PM · Sun closed
    Address
    4912 S Raymond Rd, Waterloo, IA 50701
  7. Based in Cedar Falls, 7 mi away

    48/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 14 Google reviews
    Hours
    Mon–Thu 7:30 AM–4:30 PM · Fri 7:30 AM–11:30 AM · Sat–Sun closed
    Address
    102 Dean Lee Dr, Cedar Falls, IA 50613

All 29 HVAC contractors

#1 to #25 are shown in full above. Here are #26 to #29, in CR Score order; each links to its profile.

HVAC contractors in Waterloo, ranks 26 to 29
RankBusinessCR ScoreGoogle ratingDistance
26Al Gordon Plumbing & Heating, L.C.472.7★ (18)In Waterloo
27McDonald Supply - Waterloo474.3★ (11)In Waterloo
28Precision Plumbing Heating & Air Llc465.0★ (30)23 mi
29Crystal434.2★ (32)18 mi

Also serving Waterloo

11 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.

Unranked HVAC contractors serving Waterloo
BusinessGoogle ratingDistance
Affordable Plumbing & Heating22 mi
Andy's Plumbing & Heating Inc4.5★ (2)In Waterloo
Dalton Plumbing Heating & Cooling17 mi
Fereday Heating & Air Conditioning5.0★ (2)6 mi
Heating Squad - HVAC Services WaterlooIn Waterloo
Lee's Heating Cooling & PlumbingIn Waterloo
Plumb Tech Inc4.9★ (17)In Waterloo
Ron's Plumbing & Heating & AC1.0★ (1)23 mi
S & S Construction5.0★ (2)In Waterloo
SERVPRO of Black Hawk County4.9★ (111)In Waterloo
Waterloo Heating & Air Conditioning2.0★ (2)In Waterloo

How much do HVAC contractors cost in Waterloo?

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

How much do HVAC contractors cost in Waterloo?
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 Waterloo HVAC contractors

We scored 29 Waterloo 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 Waterloo 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 Waterloo: frequently asked questions

Who is the best HVAC contractor in Waterloo?

By CR Score, the highest-ranked HVAC contractor in Waterloo, IA is Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc. with a CR Score of 66/100. It has 4.7★ from 2,581 Google reviews. It is open 24/7. Gubbels Heating & Air Conditioning (#2) and Hansons Heating and Cooling (#3) follow. We ranked 29 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Waterloo?

ContractorsRanked ranks 29 HVAC contractors serving Waterloo, IA. 15 of them are based in Waterloo; the rest serve it from nearby towns. Another 11 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Waterloo are open 24/7?

10 ranked HVAC contractors in Waterloo post 24/7 hours. The highest-ranked are Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc. (#1), Gubbels Heating & Air Conditioning (#2) and Hansons Heating and Cooling (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Waterloo work on weekends?

12 of 29 ranked HVAC contractors post Saturday hours and 11 post Sunday hours. The highest-ranked open Saturdays are Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc. (#1), Gubbels Heating & Air Conditioning (#2) and Hansons Heating and Cooling (#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 Waterloo?

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

What Google rating do Waterloo HVAC contractors have?

The median Google rating among 29 rated HVAC contractors in Waterloo is 4.7★, with a median of 19 reviews. Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc. has the most, 2,581 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 Waterloo?

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 Waterloo

  1. October 2026: CR Scores recalculated for 29 hvac contractors serving Waterloo.
  2. October 2026: 1 duplicate listing merged.