466 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Griffith: Summers Plumbing Heating & Cooling, CR Score 64/100; 4.9★ from 4,666 Google reviews; open 24/7.
Best for emergencies (open 24/7): AAA Services, Inc. - Heating, Air Conditioning & Plumbing, posts 24/7 hours; ranked #2 of 466.
Most-reviewed: Four Seasons Heating, Air Conditioning, Plumbing, & Electric, 27,709 Google reviews at 4.7★, the most of 466 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
466 Griffith HVAC contractors are ranked here by CR Score, from ten published factors. 197 are open 24/7, 347 open Saturdays and 268 open Sundays, based on posted hours. The median Google rating is 4.8★ across 466 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Summers Plumbing Heating & Cooling | 64 | 4.9★ (4,666) | Crown Point, 8 mi away | 24/7 | Overall |
| 2 | AAA Services, Inc. - Heating, Air Conditioning & Plumbing | 62 | 4.9★ (486) | Merrillville, 5 mi away | 24/7 | Emergencies |
| 3 | Illiana Heating & Air Conditioning, Inc. | 61 | 4.9★ (2,179) | Cedar Lake, 8 mi away | Sat · Sun · Evenings | — |
| 4 | Comfort Aire Inc | 61 | 4.8★ (508) | Merrillville, 6 mi away | 24/7 | — |
| 5 | EcoEdge Systems Heating & Cooling | 61 | 4.9★ (486) | Merrillville, 8 mi away | 24/7 | — |
| 6 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 61 | 4.8★ (516) | Hobart, 6 mi away | 24/7 | — |
| 7 | Merts Heating & Air Conditioning | 61 | 4.8★ (1,449) | Steger, 11 mi away | 24/7 | — |
| 8 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 61 | 4.7★ (27,709) | Chicago, 24 mi away | 24/7 | Most reviews |
| 9 | Area Sheet Metal, Heating, Cooling, and Metal Fabrication | 61 | 5.0★ (310) | Hobart, 10 mi away | 24/7 | — |
| 10 | Four Seasons Heating, Air Conditioning, Plumbing, & Electric | 61 | 4.8★ (3,722) | Crestwood, 18 mi away | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 4,666 Google reviews, listed on Google as “HVAC contractor”.
Based in Merrillville, 5 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 486 Google reviews, listed on Google as “HVAC contractor”.
Based in Cedar Lake, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 2,179 Google reviews, listed on Google as “Heating contractor”.
Based in Merrillville, 6 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 508 Google reviews, listed on Google as “HVAC contractor”.
Based in Merrillville, 8 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 486 Google reviews, listed on Google as “HVAC contractor”.
Based in Hobart, 6 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 516 Google reviews, listed on Google as “HVAC contractor”.
Based in Steger, 11 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 1,449 Google reviews, listed on Google as “Furnace repair service”.
Based in Chicago, 24 mi away
Ranked #8 because of its Google rating and review volume: 4.7★ from 27,709 Google reviews, the most in Griffith.
Based in Hobart, 10 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “HVAC contractor”.
Based in Crestwood, 18 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 3,722 Google reviews, listed on Google as “HVAC contractor”.
Based in Gary, 11 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 368 Google reviews, listed on Google as “HVAC contractor”.
Based in Valparaiso, 22 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 4,299 Google reviews, listed on Google as “HVAC contractor”.
Based in Crown Point, 8 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 275 Google reviews, listed on Google as “HVAC contractor”.
Based in Hobart, 8 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 295 Google reviews, listed on Google as “HVAC contractor”.
Based in Oak Forest, 17 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 3,996 Google reviews, listed on Google as “HVAC contractor”.
Based in Homewood, 13 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 2,200 Google reviews, listed on Google as “HVAC contractor”.
Based in Valparaiso, 22 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 3,188 Google reviews, listed on Google as “HVAC contractor”.
Based in Crown Point, 8 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 152 Google reviews, listed on Google as “HVAC contractor”.
Based in Hobart, 9 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 132 Google reviews, listed on Google as “HVAC contractor”.
Based in Valparaiso, 14 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 526 Google reviews, listed on Google as “HVAC contractor”.
Based in Mokena, 21 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 664 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Portage, 13 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 788 Google reviews, listed on Google as “HVAC contractor”.
Based in Alsip, 20 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 842 Google reviews, listed on Google as “Heating contractor”.
Based in Bridgeview, 24 mi away
Ranked #24 because of its Google rating and trade focus: 4.7★ from 4,200 Google reviews, listed on Google as “HVAC contractor”.
Based in Valparaiso, 20 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 998 Google reviews, listed on Google as “HVAC contractor”.
#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 466 ranked HVAC contractors here; the rest are on their profiles.
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 |
|---|---|---|
| Aero Performance Group | In Griffith | |
| All You Need Heating, Ventilation, AC & Refrigeration Professionals | 4.9★ (53) | 13 mi |
| All-Star Service | 4.6★ (51) | 11 mi |
| Allied Heating & Cooling, Inc. | In Griffith | |
| Budd Mechanical Systems | 4.4★ (53) | 8 mi |
| Chayhitz Repair | 5.0★ (2) | 17 mi |
| Comfort Zone Service | 5.0★ (296) | 23 mi |
| Crown Heating & Cooling Inc | 1.0★ (2) | 8 mi |
| Crown Wheele HVAC | 4.8★ (259) | 19 mi |
| Earl's Heating & Airconditiong | 5.0★ (2) | 7 mi |
| Gatlin Heating & Plumbing Inc | In Griffith | |
| HVAC Masters | 5.0★ (2) | 8 mi |
| Joe's Heating and Cooling LLC | 4.0★ (2) | 14 mi |
| KC Refrigeration and HVAC | 3.0★ (2) | 14 mi |
| Lincoln Mechanical | In Griffith | |
| Midwest Refrigeration Corporation | In Griffith | |
| Perry Heating & Air Conditioning LLC | 5.0★ (2) | 17 mi |
| Posen Heating & Air Services | 5.0★ (2) | 15 mi |
| Precision Control Systems Inc | In Griffith | |
| Tai's Heating and Air | 5.0★ (2) | 5 mi |
National price ranges in USD, not adjusted for Griffith. 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 |
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.
We scored 466 Griffith 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 Griffith 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 |