63/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 368 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 368 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best HVAC Contractors in Gary, IN (2026)
419 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Gary: True Quality HVAC, CR Score 63/100; 5.0★ from 368 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Summers Plumbing Heating & Cooling, posts 24/7 hours; ranked #2 of 419.
- 9
Most-reviewed: Four Seasons Heating, Air Conditioning, Plumbing, & Electric, 27,709 Google reviews at 4.7★, the most of 419 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
419 Gary HVAC contractors are ranked here by CR Score, from ten published factors. 169 are open 24/7, 309 open Saturdays and 244 open Sundays, based on posted hours. The median Google rating is 4.8★ across 419 rated businesses.
Top 10 HVAC contractors in Gary at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | True Quality HVAC | 63 | 5.0★ (368) | Gary | 24/7 | Overall |
| 2 | Summers Plumbing Heating & Cooling | 63 | 4.9★ (4,666) | Crown Point, 11 mi away | 24/7 | Emergencies |
| 3 | Area Sheet Metal, Heating, Cooling, and Metal Fabrication | 61 | 5.0★ (310) | Hobart, 7 mi away | 24/7 | — |
| 4 | Cruz Electric & Handy Services | 61 | 4.9★ (295) | Hobart, 5 mi away | 24/7 | — |
| 5 | AAA Services, Inc. - Heating, Air Conditioning & Plumbing | 61 | 4.9★ (486) | Merrillville, 9 mi away | 24/7 | — |
| 6 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 61 | 4.8★ (516) | Hobart, 6 mi away | 24/7 | — |
| 7 | Home Comfort Experts | 61 | 4.9★ (4,299) | Valparaiso, 19 mi away | 24/7 | — |
| 8 | EcoEdge Systems Heating & Cooling | 61 | 4.9★ (486) | Merrillville, 9 mi away | 24/7 | — |
| 9 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 61 | 4.7★ (27,709) | Chicago, 25 mi away | 24/7 | Most reviews |
| 10 | Summers Plumbing Heating & Cooling | 61 | 4.9★ (3,188) | Valparaiso, 20 mi away | 24/7 | — |
The 419 best HVAC contractors in Gary, 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 Crown Point, 11 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 4,666 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 4,666 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 506 E Summit St, Crown Point, IN 46307
Based in Hobart, 7 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 310 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 409 S Shelby St, Hobart, IN 46342
Based in Hobart, 5 mi away
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 295 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 295 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 541 N Wisconsin St, Hobart, IN 46342
Based in Merrillville, 9 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 486 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 486 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7924 Independence St, Merrillville, IN 46410
Based in Hobart, 6 mi away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 516 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 516 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6241 Northwind Pkwy, Hobart, IN 46342
Based in Valparaiso, 19 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 4,299 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 4,299 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3505 Redbow Dr, Valparaiso, IN 46383
Based in Merrillville, 9 mi away
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 486 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 486 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3490 E 83rd Pl, Merrillville, IN 46410
Based in Chicago, 25 mi away
61/100CR ScoreRanked #9 because of its Google rating and review volume: 4.7★ from 27,709 Google reviews, the most in Gary.
- 4.7★ from 27,709 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5701 W 73rd St, Chicago, IL 60638
Based in Valparaiso, 20 mi away
61/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 3,188 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 3,188 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1260 Transport Dr, Valparaiso, IN 46383
#11 Comfort Aire Inc
Based in Merrillville, 9 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 508 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 508 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8269 Buchanan St, Merrillville, IN 46410
Based in Hobart, 6 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 132 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 132 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 848 E Hickey St Unit A, Hobart, IN 46342
Based in Crestwood, 20 mi away
60/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 3,722 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 3,722 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 14017 S Cicero Ave, Crestwood, IL 60418
Based in Portage, 8 mi away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.6★ from 788 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 788 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5705 Old Porter Rd, Portage, IN 46368
Based in Cedar Lake, 14 mi away
60/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 2,179 Google reviews, listed on Google as “Heating contractor”.
- 4.9★ from 2,179 Google reviews
- Hours
- Mon–Sun 8 AM–11 PM
- Address
- 11407 Wicker Ave, Cedar Lake, IN 46303
Based in Steger, 17 mi away
60/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 1,449 Google reviews, listed on Google as “Furnace repair service”.
- 4.8★ from 1,449 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3102 Louis Sherman Dr, Steger, IL 60475
Based in Crown Point, 11 mi away
60/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 275 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 275 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1124 Arrowhead Ct, Crown Point, IN 46307
#18 All-Star Service
Based in Valparaiso, 13 mi away
60/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 526 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 526 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 519 W US Hwy 30, Valparaiso, IN 46385
Based in Oak Forest, 20 mi away
60/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.7★ from 3,996 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 3,996 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4813 W 159th St, Oak Forest, IL 60452
Based in Homewood, 17 mi away
59/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 2,200 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,200 Google reviews
- Hours
- Mon–Sun 8 AM–10 PM
- Address
- 17907 Dixie Hwy, Homewood, IL 60430
Based in Crown Point, 12 mi away
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 152 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 152 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 123 N Main St Suite 004 A, Crown Point, IN 46307
Based in Valparaiso, 18 mi away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 998 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 998 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 653 Axe Ave, Valparaiso, IN 46383
Based in Chicago, 16 mi away
59/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.8★ from 500 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 500 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7850 S Colfax Ave, Chicago, IL 60649
Based in Valparaiso, 17 mi away
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 346 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 346 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 257 Indiana Ave, Valparaiso, IN 46383
Based in Alsip, 22 mi away
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 842 Google reviews, listed on Google as “Heating contractor”.
- 4.9★ from 842 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12004 S Central Ave, Alsip, IL 60803
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 419 ranked HVAC contractors here; the rest are on their profiles.
Also serving Gary
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 |
|---|---|---|
| After Hours Heating & Cooling Corp | 5.0★ (9) | 6 mi |
| BareTemp | In Gary | |
| Best HVAC | In Gary | |
| Chayhitz Repair | 5.0★ (2) | 13 mi |
| Cold Air HVAC LLC | 4.4★ (35) | 8 mi |
| Crown Heating & Cooling Inc | 1.0★ (2) | 11 mi |
| Dukes heating and cooling | In Gary | |
| Earl's Heating & Airconditiong | 5.0★ (2) | 9 mi |
| HVAC Masters | 5.0★ (2) | 12 mi |
| Indoor Comfort Heating And Cooling | 5.0★ (2) | 16 mi |
| Isaac's Air Solutions | In Gary | |
| Moores Heating & Cooling | In Gary | |
| Morgan Mechanical Heating and Air, LLC | 4.8★ (41) | 12 mi |
| NorthwesthvacLLC | 5.0★ (1) | In Gary |
| Regional Plumbing Heating & Air | 4.6★ (22) | 8 mi |
| Residential Solutions | In Gary | |
| Smart Air HVAC | In Gary | |
| supreme heating llc | 5.0★ (2) | 16 mi |
| Tai's Heating and Air | 5.0★ (2) | In Gary |
| Young Plumbing | 4.8★ (777) | In Gary |
How much do HVAC contractors cost in Gary?
National price ranges in USD, not adjusted for Gary. 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 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 Gary HVAC contractors
We scored 419 Gary 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 Gary 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 Gary: frequently asked questions
Who is the best HVAC contractor in Gary?
By CR Score, the highest-ranked HVAC contractor in Gary, IN is True Quality HVAC with a CR Score of 63/100. It has 5.0★ from 368 Google reviews. It is open 24/7. Summers Plumbing Heating & Cooling (#2) and Area Sheet Metal, Heating, Cooling, and Metal Fabrication (#3) follow. We ranked 419 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Gary?
ContractorsRanked ranks 419 HVAC contractors serving Gary, IN. 5 of them are based in Gary; 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 Gary are open 24/7?
169 ranked HVAC contractors in Gary post 24/7 hours. The highest-ranked are True Quality HVAC (#1), Summers Plumbing Heating & Cooling (#2) and Area Sheet Metal, Heating, Cooling, and Metal Fabrication (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Gary work on weekends?
309 of 419 ranked HVAC contractors post Saturday hours and 244 post Sunday hours. The highest-ranked open Saturdays are True Quality HVAC (#1), Summers Plumbing Heating & Cooling (#2) and Area Sheet Metal, Heating, Cooling, and Metal Fabrication (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Gary?
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 Gary. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Gary HVAC contractors have?
The median Google rating among 419 rated HVAC contractors in Gary is 4.8★, with a median of 21 reviews. Four Seasons Heating, Air Conditioning, Plumbing, & Electric has the most, 27,709 reviews, and ranks #9. 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 Gary?
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 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 Gary
- October 2026: CR Scores recalculated for 419 hvac contractors serving Gary.
- October 2026: 4 duplicate listings merged.
More HVAC contractors and Gary pages
HVAC contractors near Gary
- HVAC contractors in Lake Station, IN234 ranked
- HVAC contractors in Griffith, IN466 ranked
- HVAC contractors in Highland, IN530 ranked
- HVAC contractors in Hobart, IN229 ranked
- HVAC contractors in East Chicago, IN672 ranked
- HVAC contractors in Merrillville, IN261 ranked
- HVAC contractors in Hammond, IN667 ranked
- HVAC contractors in Munster, IN656 ranked
- HVAC contractors in Portage, IN210 ranked
- HVAC contractors in Schererville, IN424 ranked
Other trades in Gary
- Roofers in Gary1102 ranked
- Plumbers in Gary268 ranked
- Electricians in Gary250 ranked
- General contractors in Gary407 ranked
- Painters in Gary83 ranked
- Landscapers in Gary114 ranked
- Handymen in Gary34 ranked
- Kitchen remodelers in Gary156 ranked
- Bathroom remodelers in Gary161 ranked
- Flooring contractors in Gary137 ranked
- Tile installers in Gary20 ranked
- Drywall contractors in Gary8 ranked
- Concrete contractors in Gary141 ranked
- Fence contractors in Gary78 ranked
- Deck builders in Gary82 ranked
- Siding contractors in Gary477 ranked
- Window installers in Gary495 ranked
- Gutter installers in Gary125 ranked
- Insulation contractors in Gary40 ranked
- Solar installers in Gary75 ranked
- Garage door repair companies in Gary41 ranked
- Foundation repair companies in Gary137 ranked
- Tree services in Gary150 ranked
- Masonry contractors in Gary98 ranked
- Water damage restoration companies in Gary509 ranked
- Home builders in Gary371 ranked
- Demolition contractors in Gary44 ranked
- All contractors in Gary