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ContractorsRanked

Best HVAC Contractors in Dyer, IN (2026)

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

The short answer

  1. 1

    Best overall in Dyer: Summers Plumbing Heating & Cooling, CR Score 92/100; 4.9★ from 4,666 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Merts Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 516.

  3. 5

    Most-reviewed: Four Seasons Heating, Air Conditioning, Plumbing, & Electric, 27,709 Google reviews at 4.7★, the most of 516 ranked; ranked #5.

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

516 Dyer HVAC contractors are ranked here by CR Score, from 8 published factors. 222 are open 24/7, 387 open Saturdays and 300 open Sundays, based on posted hours. The median Google rating is 4.9★ across 516 rated businesses.

Top 10 HVAC contractors in Dyer at a glance

Top 10 HVAC contractors in Dyer at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Summers Plumbing Heating & Cooling924.9★ (4,666)Crown Point, 10 mi away24/7Overall
2Merts Heating & Air Conditioning904.8★ (1,449)Steger, 6 mi away24/7Emergencies
3AAA Services, Inc. - Heating, Air Conditioning & Plumbing894.9★ (486)Merrillville, 8 mi away24/7—
4Four Seasons Heating, Air Conditioning, Plumbing, & Electric894.8★ (3,722)Crestwood, 15 mi away24/7—
5Four Seasons Heating, Air Conditioning, Plumbing, & Electric894.7★ (27,709)Chicago, 22 mi away24/7Most reviews
6King Heating, Cooling & Plumbing884.7★ (3,996)Oak Forest, 13 mi away24/7—
7True Quality HVAC885.0★ (368)Gary, 12 mi away24/7—
8Air Source 1 Heating & Air Conditioning885.0★ (664)Mokena, 16 mi away24/7—
9Illiana Heating & Air Conditioning, Inc.884.9★ (2,179)Cedar Lake, 6 mi awaySat · Sun · Evenings—
10Comfort Aire Inc884.8★ (508)Merrillville, 9 mi away24/7—

The 516 best HVAC contractors in Dyer, 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.

  10. #10 Comfort Aire Inc

    Based in Merrillville, 9 mi away

    88/100CR Score

    Ranked #10 because of its Google rating and availability: 4.8★ from 508 Google reviews, open 24/7.

    • 4.8★ from 508 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8269 Buchanan St, Merrillville, IN 46410
    View profile for Comfort Aire Inc(219) 306-2348

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 516 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Dyer, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Climate Control Systems864.9★ (430)17 mi
27Climate Master Mechanical Contractors, Inc. DBA Doornbos Heating & Air Conditioning864.9★ (282)16 mi
28Valor Heating, Cooling & Refrigeration - Commercial & Residential865.0★ (132)15 mi
29Doornbos Heating & Air Conditioning864.8★ (600)18 mi
30King Heating, Cooling & Plumbing864.8★ (783)19 mi
31Magtek Mechanical Heating & Cooling864.9★ (539)21 mi
324 Brothers Sewer and Plumbing Service864.6★ (166)7 mi
33Burris & Sons Heating, Cooling & Plumbing864.8★ (500)18 mi
34All-Star Service854.8★ (526)19 mi
35Elemental Air Heating & Cooling855.0★ (109)15 mi
36TemperaturePro Heating, Cooling & Indoor Air Quality854.8★ (440)17 mi
37One Hour Heating & Air Conditioning of Hazel Crest854.8★ (100)10 mi
38Mountain Top Heating Air & Appliance Repair Inc.repair854.6★ (117)7 mi
39Nikki's Heating & Cooling855.0★ (30)8 mi
40Porterhouse Heating & Cooling854.8★ (201)15 mi
41Superb Heating and Air855.0★ (92)16 mi
42Amber Heating & Air Conditioning DBA Doornbos Heating & Air Conditioning854.8★ (269)18 mi
43Art Miller Plumbing & Heating854.9★ (35)9 mi
44Four Seasons Mechanical854.8★ (73)11 mi
45Regional Plumbing Heating & Air854.8★ (998)24 mi
46American Heating And Cooling855.0★ (99)18 mi
47Update Heating and Cooling Services854.9★ (435)24 mi
48Morgan Mechanical Heating and Air, LLC844.8★ (41)10 mi
49Elico Heating & Cooling844.9★ (346)24 mi
50Maglish Plumbing, Heating, Cooling & Electrical844.6★ (788)18 mi

Also serving Dyer

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.

Unranked HVAC contractors serving Dyer
BusinessGoogle ratingDistance
All You Need Heating, Ventilation, AC & Refrigeration Professionals4.9★ (53)11 mi
Artesian Plumbing, Heating & Cooling, Inc.3.0★ (2)16 mi
Calumet Heating & Cooling3.0★ (2)14 mi
CMK Contractors Inc5.0★ (2)14 mi
Comfort Zone Service5.0★ (296)18 mi
Cotton Construction5.0★ (2)17 mi
Crown Heating & Cooling Inc1.0★ (2)10 mi
Dynamic Heating & Piping1.0★ (2)15 mi
Earl's Heating & Airconditiong5.0★ (2)11 mi
HVAC Masters5.0★ (2)6 mi
Integrity Heating & Cooling4.5★ (816)18 mi
KC Refrigeration and HVAC3.0★ (2)10 mi
Lake Effect Heating and Cooling5.0★ (2)18 mi
Polar Heating & AC4.6★ (899)20 mi
Posen Heating & Air Services5.0★ (2)12 mi
Rps Heating & Air5.0★ (2)15 mi
SAI Mechanical5.0★ (2)18 mi
Sendra Service Corporation4.5★ (2)18 mi
Smg hvac5.0★ (2)16 mi
Tai's Heating and Air5.0★ (2)10 mi

How much do HVAC contractors cost in Dyer?

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

How much do HVAC contractors cost in Dyer?
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

When to hire an HVAC contractor in Indiana

In Indiana, 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 Dyer HVAC contractors

We scored 516 Dyer 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Dyer data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

HVAC contractors in Dyer: frequently asked questions

Who is the best HVAC contractor in Dyer?

By CR Score, the highest-ranked HVAC contractor in Dyer, IN is Summers Plumbing Heating & Cooling with a CR Score of 92/100. It has 4.9★ from 4,666 Google reviews. It is open 24/7. Merts Heating & Air Conditioning (#2) and AAA Services, Inc. - Heating, Air Conditioning & Plumbing (#3) follow. We ranked 516 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Dyer?

ContractorsRanked ranks 516 HVAC contractors serving Dyer, IN. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Dyer are open 24/7?

222 ranked HVAC contractors in Dyer post 24/7 hours. The highest-ranked are Summers Plumbing Heating & Cooling (#1), Merts Heating & Air Conditioning (#2) and AAA Services, Inc. - Heating, Air Conditioning & Plumbing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Dyer work on weekends?

387 of 516 ranked HVAC contractors post Saturday hours and 300 post Sunday hours. The highest-ranked open Saturdays are Summers Plumbing Heating & Cooling (#1), Merts Heating & Air Conditioning (#2) and AAA Services, Inc. - Heating, Air Conditioning & Plumbing (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Dyer?

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

What Google rating do Dyer HVAC contractors have?

The median Google rating among 516 rated HVAC contractors in Dyer is 4.9★, with a median of 21 reviews. Four Seasons Heating, Air Conditioning, Plumbing, & Electric has the most, 27,709 reviews, and ranks #5. 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 Dyer?

In Indiana, 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 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Dyer

  1. October 2026: CR Scores recalculated for 516 hvac contractors serving Dyer.
  2. October 2026: 6 duplicate listings merged.

More HVAC contractors and Dyer pages

Other trades in Dyer