63/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 2,863 Google reviews, the most in South Beloit.
- 4.9★ from 2,863 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 310 Sunnyside Dr, Milton, WI 53563
Best HVAC Contractors in South Beloit, IL (2026)
132 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in South Beloit: 24HR Home Comfort Services, CR Score 63/100; 4.9★ from 2,863 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Perfect Temp Heating & Cooling, posts 24/7 hours; ranked #3 of 132.
- 2
Most-reviewed: Appliance Repair Experts, 1,444 Google reviews at 4.8★, the most of 132 ranked after 24HR Home Comfort Services; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
132 South Beloit HVAC contractors are ranked here by CR Score, from ten published factors. 52 are open 24/7, 79 open Saturdays and 65 open Sundays, based on posted hours. The median Google rating is 4.7★ across 132 rated businesses.
Top 10 HVAC contractors in South Beloit at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | 24HR Home Comfort Services | 63 | 4.9★ (2,863) | Milton, 20 mi away | 24/7 | Overall |
| 2 | Appliance Repair Experts | 63 | 4.8★ (1,444) | Janesville, 10 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Perfect Temp Heating & Cooling | 62 | 4.8★ (719) | Loves Park, 12 mi away | 24/7 | Emergencies |
| 4 | Rock Valley Services, Inc. | 62 | 4.9★ (443) | Janesville, 12 mi away | 24/7 | — |
| 5 | Bear Necessities Home Services | 61 | 5.0★ (174) | Machesney Park, 14 mi away | 24/7 | — |
| 6 | Rockton Heating & Air Conditioning/Rockton Heating & Cooling | 60 | 5.0★ (65) | South Beloit | Sat · Sun | — |
| 7 | Taylor's Heating/Cooling & Electrical | 59 | 5.0★ (102) | Machesney Park, 16 mi away | 24/7 | — |
| 8 | MP Heating & Air Conditioning | 59 | 4.7★ (54) | Machesney Park, 8 mi away | 24/7 | — |
| 9 | Absolute Value Heating & Cooling - Rockford | 59 | 4.9★ (85) | Rockford, 14 mi away | 24/7 | — |
| 10 | O'Connor Heating, Cooling & Electrical | 59 | 4.6★ (60) | Machesney Park, 9 mi away | 24/7 | — |
The 132 best HVAC contractors in South Beloit, 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 Janesville, 10 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 1,444 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 1,444 Google reviews
- Hours
- Mon–Thu 7:30 AM–9 PM · Fri 7:30 AM–7:30 PM · Sat 9 AM–6 PM · Sun 9 AM–5 PM
Based in Loves Park, 12 mi away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 719 Google reviews, listed on Google as “Heating contractor”.
- 4.8★ from 719 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6813 Elm Ave, Loves Park, IL 61111
Based in Janesville, 12 mi away
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 443 Google reviews, listed on Google as “Furnace repair service”.
- 4.9★ from 443 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 928 Todd Dr #2, Janesville, WI 53546
Based in Machesney Park, 14 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 174 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 174 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in South Beloit
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 65 Google reviews
- Hours
- Mon–Sun 7 AM–3 PM
Based in Machesney Park, 16 mi away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 102 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 102 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Machesney Park, 8 mi away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 54 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.7★ from 54 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8289 Burden Rd Unit N, Machesney Park, IL 61115
Based in Rockford, 14 mi away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 85 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1643 N Alpine Rd #104, Rockford, IL 61107
Based in Machesney Park, 9 mi away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.6★ from 60 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 60 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10340 Product Dr, Machesney Park, IL 61115
Based in South Beloit
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.0★ from 20 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.0★ from 20 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5964 Dusty Ln, South Beloit, IL 61080
Based in Rockford, 19 mi away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 93 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 93 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 809 Gregory Way, Winnebago, IL 61088
Based in Rockford, 17 mi away
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 65 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 65 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1203 22nd St, Rockford, IL 61108
Based in Machesney Park, 5 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.3★ from 24 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.3★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Rockford, 16 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ from 75 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 75 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 103 Hall St, Rockford, IL 61107
Based in Rockford, 17 mi away
57/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 126 Google reviews, listed on Google as “Heating contractor”.
- 4.6★ from 126 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1618 Magnolia St, Rockford, IL 61104
Based in Rockford, 16 mi away
57/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.3★ from 259 Google reviews, listed on Google as “HVAC contractor”.
- 4.3★ from 259 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 122 N 2nd St, Rockford, IL 61107
Based in Rockford, 15 mi away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 32 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1947 N Lyford Rd, Rockford, IL 61107
Based in Janesville, 13 mi away
57/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 385 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 385 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 300 S River St, Janesville, WI 53548
Based in Rockford, 16 mi away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.6★ from 78 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 78 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 322 7th St, Rockford, IL 61104
Based in Roscoe, 6 mi away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.0★ from 25 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.0★ from 25 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10532 Main St, Roscoe, IL 61073
Based in South Beloit
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.4★ from 48 Google reviews, listed on Google as “HVAC contractor”.
- 4.4★ from 48 Google reviews
- Hours
- Mon–Fri 6 AM–10 PM · Sat 6 AM–12 PM · Sun closed
Based in Rockford, 14 mi away
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.5★ from 39 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.5★ from 39 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2707 Huffman Blvd, Rockford, IL 61103
Based in Rockford, 16 mi away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 39 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 318 Vincent Ave, Rockford, IL 61102
Based in Belvidere, 20 mi away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 75 Google reviews, listed on Google as “Heating contractor”.
- 4.7★ from 75 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 516 W 6th St, Belvidere, IL 61008
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 132 ranked HVAC contractors here; the rest are on their profiles.
Also serving South Beloit
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 |
|---|---|---|
| 24/7 Home Comfort Services | 3.8★ (4) | 13 mi |
| 5 Start Plumbing Heating & Cooling | 3.0★ (2) | 3 mi |
| A-SNAP HEATING COOLING ELECTRIC | 5.0★ (1) | 11 mi |
| Advance Thermo Care | 5.0★ (1) | 13 mi |
| Affordable Heating & A/C | 2.8★ (6) | 15 mi |
| Affordable Heating & AC | In South Beloit | |
| Air Management Services Inc | 4.0★ (2) | 22 mi |
| Bob's Refrigeration heating and air conditioning inc | 4.6★ (9) | 23 mi |
| Calyx Contracting | 5.0★ (1) | 11 mi |
| Dad And Son LLC | 5.0★ (2) | 16 mi |
| EB Mechanical LLC. | 5.0★ (1) | 2 mi |
| Gene Nelson and Sons | 5.0★ (1) | 11 mi |
| GH Heating & Air, L.L.C. | 4.1★ (17) | 24 mi |
| Handyman Services: Plumbing, Electrician, Heating | 5.0★ (1) | 16 mi |
| Heating & Cooling | 5.0★ (2) | 17 mi |
| ProTech Plumbing, Heating, & Cooling | 4.3★ (6) | 12 mi |
| Rock River Heating & Air | 5.0★ (7) | 22 mi |
| Ron Swanson Plumbing & Heating | 5.0★ (2) | 13 mi |
| Top Shot C.K.R. Inc. - Commercial HVAC/Refrigeration | 4.0★ (21) | 18 mi |
| TOTAL Mechanical, LLC Janesville | 5.0★ (1) | 9 mi |
How much do HVAC contractors cost in South Beloit?
National price ranges in USD, not adjusted for South Beloit. 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 Illinois
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.
How we ranked South Beloit HVAC contractors
We scored 132 South Beloit 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 South Beloit 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 South Beloit: frequently asked questions
Who is the best HVAC contractor in South Beloit?
By CR Score, the highest-ranked HVAC contractor in South Beloit, IL is 24HR Home Comfort Services with a CR Score of 63/100. It has 4.9★ from 2,863 Google reviews. It is open 24/7. Appliance Repair Experts (#2) and Perfect Temp Heating & Cooling (#3) follow. We ranked 132 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in South Beloit?
ContractorsRanked ranks 132 HVAC contractors serving South Beloit, IL. 4 of them are based in South Beloit; 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 South Beloit are open 24/7?
52 ranked HVAC contractors in South Beloit post 24/7 hours. The highest-ranked are 24HR Home Comfort Services (#1), Perfect Temp Heating & Cooling (#3) and Rock Valley Services, Inc. (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in South Beloit work on weekends?
79 of 132 ranked HVAC contractors post Saturday hours and 65 post Sunday hours. The highest-ranked open Saturdays are 24HR Home Comfort Services (#1), Appliance Repair Experts (#2) and Perfect Temp Heating & Cooling (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in South Beloit?
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 South Beloit. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do South Beloit HVAC contractors have?
The median Google rating among 132 rated HVAC contractors in South Beloit is 4.7★, with a median of 19 reviews. 24HR Home Comfort Services has the most, 2,863 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 South Beloit?
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.
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 South Beloit
- October 2026: CR Scores recalculated for 132 hvac contractors serving South Beloit.
- October 2026: 2 duplicate listings merged.
More HVAC contractors and South Beloit pages
HVAC contractors near South Beloit
- HVAC contractors in Rockton, IL128 ranked
- HVAC contractors in Roscoe, IL124 ranked
- HVAC contractors in Machesney Park, IL119 ranked
- HVAC contractors in Loves Park, IL113 ranked
- HVAC contractors in Poplar Grove, IL151 ranked
- HVAC contractors in Rockford, IL113 ranked
- HVAC contractors in Belvidere, IL163 ranked
- HVAC contractors in Harvard, IL225 ranked
- HVAC contractors in Marengo, IL344 ranked
- HVAC contractors in Woodstock, IL385 ranked
Other trades in South Beloit
- Roofers in South Beloit273 ranked
- Plumbers in South Beloit94 ranked
- Electricians in South Beloit80 ranked
- General contractors in South Beloit122 ranked
- Painters in South Beloit56 ranked
- Landscapers in South Beloit78 ranked
- Handymen in South Beloit25 ranked
- Kitchen remodelers in South Beloit73 ranked
- Bathroom remodelers in South Beloit78 ranked
- Flooring contractors in South Beloit53 ranked
- Tile installers in South Beloit10 ranked
- Drywall contractors in South Beloit8 ranked
- Concrete contractors in South Beloit92 ranked
- Fence contractors in South Beloit22 ranked
- Deck builders in South Beloit50 ranked
- Siding contractors in South Beloit154 ranked
- Window installers in South Beloit124 ranked
- Gutter installers in South Beloit64 ranked
- Insulation contractors in South Beloit18 ranked
- Solar installers in South Beloit17 ranked
- Garage door repair companies in South Beloit24 ranked
- Foundation repair companies in South Beloit38 ranked
- Tree services in South Beloit95 ranked
- Masonry contractors in South Beloit40 ranked
- Water damage restoration companies in South Beloit98 ranked
- Home builders in South Beloit101 ranked
- Demolition contractors in South Beloit14 ranked
- All contractors in South Beloit