165 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Belvidere: Perfect Temp Heating & Cooling, CR Score 64/100; 4.8★ from 719 Google reviews; open 24/7.
Best for emergencies (open 24/7): Woodstock Heating, Cooling & Electrical, posts 24/7 hours; ranked #2 of 165.
Most-reviewed: Appliance Repair Experts, 1,444 Google reviews at 4.8★, the most of 165 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
165 Belvidere HVAC contractors are ranked here by CR Score, from ten published factors. 76 are open 24/7, 103 open Saturdays and 86 open Sundays, based on posted hours. The median Google rating is 4.8★ across 165 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Perfect Temp Heating & Cooling | 64 | 4.8★ (719) | Loves Park, 11 mi away | 24/7 | Overall |
| 2 | Woodstock Heating, Cooling & Electrical | 63 | 4.9★ (1,222) | Woodstock, 21 mi away | 24/7 | Emergencies |
| 3 | Appliance Repair Experts | 63 | 4.8★ (1,444) | Janesville, 14 mi away | Sat · Sun · Evenings | Most reviews |
| 4 | Bear Necessities Home Services | 62 | 5.0★ (174) | Machesney Park, 11 mi away | 24/7 | — |
| 5 | Hurst Heating & Cooling | 62 | 4.8★ (463) | Rockford, 14 mi away | 24/7 | — |
| 6 | Half Price Heating & Air | 62 | 4.7★ (75) | Belvidere | 24/7 | — |
| 7 | GSHA Services, LTD | 62 | 4.9★ (747) | Woodstock, 21 mi away | 24/7 | — |
| 8 | Absolute Value Heating & Cooling - Rockford | 61 | 4.9★ (85) | Rockford, 9 mi away | 24/7 | — |
| 9 | Breeze Heating and AC LLC | 60 | 5.0★ (32) | Rockford, 6 mi away | 24/7 | — |
| 10 | Dream Starter HVAC Solutions Inc. | 60 | 4.9★ (65) | Rockford, 11 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: 4.8★ from 719 Google reviews, listed on Google as “Heating contractor”.
Based in Woodstock, 21 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,222 Google reviews, listed on Google as “HVAC contractor”.
Based in Janesville, 14 mi away
Ranked #3 because of its Google rating and review volume: 4.8★ from 1,444 Google reviews, the most in Belvidere.
Based in Machesney Park, 11 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 174 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockford, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 463 Google reviews, listed on Google as “HVAC contractor”.
Based in Belvidere
Ranked #6 because of its Google rating and trade focus: 4.7★ from 75 Google reviews, listed on Google as “Heating contractor”.
Based in Woodstock, 21 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 747 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockford, 9 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockford, 6 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockford, 11 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 65 Google reviews, listed on Google as “HVAC contractor”.
Based in Hampshire, 20 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 153 Google reviews, listed on Google as “HVAC contractor”.
Based in Sycamore, 20 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 194 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockford, 13 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 126 Google reviews, listed on Google as “Heating contractor”.
Based in Rockford, 12 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 75 Google reviews, listed on Google as “HVAC contractor”.
Based in Loves Park, 13 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 55 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Loves Park, 4 mi away
Ranked #16 because of its Google rating and trade focus: 4.4★ from 30 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Rockford, 12 mi away
Ranked #17 because of its Google rating and trade focus: 4.3★ from 259 Google reviews, listed on Google as “HVAC contractor”.
Based in Genoa, 14 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 62 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockford, 12 mi away
Ranked #19 because of its Google rating and trade focus: 4.6★ from 78 Google reviews, listed on Google as “HVAC contractor”.
Based in Hampshire, 20 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 229 Google reviews, listed on Google as “HVAC contractor”.
Based in Machesney Park, 21 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 102 Google reviews, listed on Google as “HVAC contractor”.
Based in Machesney Park, 12 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 54 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Belvidere
Ranked #23 because of its Google rating and trade focus: 4.2★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based in Rockford, 20 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 93 Google reviews, listed on Google as “HVAC contractor”.
Based in DeKalb, 24 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 209 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 165 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 |
|---|---|---|
| 5 Start Plumbing Heating & Cooling | 3.0★ (2) | 20 mi |
| A Hartlett & Son | 4.5★ (2) | 21 mi |
| AC's Best Heating and Cooling | 1.0★ (1) | 6 mi |
| Air Management Services Inc | 4.0★ (2) | 16 mi |
| All-Star Heating & Air Conditioning Inc. | 4.5★ (138) | 24 mi |
| Arlington Heights AM/PM Heating & Air Conditioning Contractors Inc. | 5.0★ (1) | 9 mi |
| BP HEATING LLC | 5.0★ (2) | 22 mi |
| Calyx Contracting | 5.0★ (1) | 10 mi |
| D & D Comfort Inc. Heating & Air Conditioning, Inc. | 4.9★ (110) | 23 mi |
| Dad And Son LLC | 5.0★ (2) | In Belvidere |
| Gene Nelson and Sons | 5.0★ (1) | 10 mi |
| Heating & Cooling | 5.0★ (2) | 13 mi |
| Magin Heating & Cooling | 4.8★ (17) | 12 mi |
| Newton's HVAC | 5.0★ (2) | 19 mi |
| One Call Heating & Cooling | 5.0★ (2) | 20 mi |
| Ron Swanson Plumbing & Heating | 5.0★ (2) | 18 mi |
| Ron's Heating & Air Conditioning - 24 h/r emergency service | 4.6★ (47) | 21 mi |
| Service Concepts Inc - Commercial Heating and Cooling - Genoa, IL | 3.0★ (2) | 15 mi |
| Veteran Refrigeration Services, LLC | 5.0★ (1) | 9 mi |
| ZN Heating and Cooling, Inc | 5.0★ (2) | 9 mi |
National price ranges in USD, not adjusted for Belvidere. 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 Illinois, 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 165 Belvidere 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 Belvidere 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 |