59/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 679 Google reviews.
- 4.9★ from 679 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9225 Watson Industrial Park, St. Louis, MO 63126
Best Solar Installers in Cahokia, IL (2026)
58 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Cahokia: Streib Company, CR Score 59/100; 4.9★ from 679 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Bates Electric, posts 24/7 hours; ranked #2 of 58.
- 2
Most-reviewed: Bates Electric, 1,366 Google reviews at 4.8★, the most of 58 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
58 Cahokia solar installers are ranked here by CR Score, from ten published factors. 7 are open 24/7, 24 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.8★ across 58 rated businesses.
Top 10 solar installers in Cahokia at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Streib Company | 59 | 4.9★ (679) | St. Louis, 10 mi away | 24/7 | Overall |
| 2 | Bates Electric | 59 | 4.8★ (1,366) | Arnold, 16 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Ltd Solar Consulting and Roofing | 59 | 5.0★ (10) | St. Louis, 5 mi away | 24/7 | — |
| 4 | AMA ENERGY SOLUTIONS LLC | 57 | 4.0★ (8) | Sappington, 10 mi away | 24/7 | — |
| 5 | Sun Solar Illinois | 56 | 4.6★ (77) | East Saint Louis, 1 mi away | — | — |
| 6 | Astrawatt Solar | 56 | 4.7★ (47) | Olivette, 13 mi away | Sat · Evenings | — |
| 7 | StraightUp Solar | 56 | 4.9★ (128) | St. Louis, 16 mi away | — | — |
| 8 | Route 66 Solar | 56 | 4.9★ (119) | Edwardsville, 20 mi away | Evenings | — |
| 9 | SunSent Solar | 55 | 4.6★ (106) | Saint Charles, 22 mi away | Sat | — |
| 10 | Solar R&R Kings | 55 | 5.0★ (4) | East Saint Louis, 6 mi away | Sat · Sun | — |
The 58 best solar installers in Cahokia, 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 Arnold, 16 mi away
59/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 1,366 Google reviews, the most in Cahokia.
- 4.8★ from 1,366 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2006 Sierra Pkwy, Arnold, MO 63010
Based in St. Louis, 5 mi away
59/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 10 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5850 Macklind Ave #245, St. Louis, MO 63109
Based in Sappington, 10 mi away
57/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Solar energy company”.
- 4.0★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1 Concord Ln, Sappington, MO 63128
Based in East Saint Louis, 1 mi away
56/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.6★ from 77 Google reviews, listed on Google as “Solar energy company”.
- 4.6★ from 77 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 11 Industrial Dr, Sauget, IL 62206
Based in Olivette, 13 mi away
56/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.7★ from 47 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 47 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 9647 Dielman Rock Island Industrl Dr, Olivette, MO 63132
Based in St. Louis, 16 mi away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 128 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 128 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 11696 Lilburn Park Rd, St. Louis, MO 63146
Based in Edwardsville, 20 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 119 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 119 Google reviews
- Hours
- Mon–Fri 10 AM–8 PM · Sat–Sun closed
- Address
- 2110 Troy Rd Suite B1, Edwardsville, IL 62025
Based in Saint Charles, 22 mi away
55/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 106 Google reviews, listed on Google as “Solar energy company”.
- 4.6★ from 106 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–5 PM · Sun closed
- Address
- 1710 Scherer Pkwy, St Charles, MO 63303
#10 Solar R&R Kings
Based in East Saint Louis, 6 mi away
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Solar panel maintenance service”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Sun 9 AM–6 PM
Based in Bridgeton, 20 mi away
55/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 30 Google reviews
- Hours
- Mon–Fri 8:30 AM–7 PM · Sat 10 AM–4 PM · Sun closed
- Address
- 13730 Shoreline Ct E, Earth City, MO 63045
#12 Freedom Forever
Based in Mascoutah, 21 mi away
55/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 117 Google reviews, listed on Google as “Solar energy company”.
- 4.7★ from 117 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 9237 Beller Dr Suite B, Mascoutah, IL 62258
Based in Saint Charles, 23 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 104 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 104 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 201 Hughes Ln, St Charles, MO 63301
#14 Solar City STL
Based in St. Louis, 10 mi away
54/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.0★ from 20 Google reviews, listed on Google as “Solar energy company”.
- 4.0★ from 20 Google reviews
- Hours
- Mon–Fri 9 AM–7 PM · Sat 12 PM–4 PM · Sun closed
- Address
- 5526 S Lindbergh Blvd, St. Louis, MO 63123
Based in Saint Charles, 21 mi away
54/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Sun 9 AM–7 PM
- Address
- 119 S Main St, St Charles, MO 63301
#16 Brda Electric
Based in Ballwin, 14 mi away
54/100CR ScoreRanked #16 because of its Google rating and review volume: 4.9★ from 817 Google reviews.
- 4.9★ from 817 Google reviews
- Hours
- Mon–Fri 7:30 AM–4:30 PM · Sat–Sun closed
- Address
- 1758 Chase Dr, Fenton, MO 63026
#17 proSOLAR
Based in Ballwin, 14 mi away
54/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.6★ from 12 Google reviews, listed on Google as “Solar energy company”.
- 4.6★ from 12 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–2 PM · Sun closed
- Address
- 1710 Fenpark Dr Suite 475, Fenton, MO 63026
Based in Mascoutah, 22 mi away
53/100CR ScoreRanked #18 because of its Google rating and review volume: 4.8★ from 66 Google reviews.
- 4.8★ from 66 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 516 S Jefferson St, Mascoutah, IL 62258
Based in Kirkwood, 12 mi away
53/100CR ScoreRanked #19 because of its Google rating and review volume: 4.9★ from 381 Google reviews.
- 4.9★ from 381 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 101 W Argonne Dr #182, Kirkwood, MO 63122
#20 eEquals Solar
Based in Edwardsville, 21 mi away
52/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.2★ from 140 Google reviews, listed on Google as “Solar energy company”.
- 4.2★ from 140 Google reviews
- Hours
- Mon–Fri 9 AM–6 PM · Sat–Sun closed
- Address
- 201 Hillsboro Ave, Edwardsville, IL 62025
#21 SunKey Solar
Based in St. Louis, 17 mi away
52/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 15 Google reviews
- Hours
- Mon–Fri 8:30 AM–5:30 PM · Sat–Sun closed
- Address
- 12747 Olive Blvd Suite 300, St. Louis, MO 63141
Based in Barnhart, 19 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 17 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1035 Frisco Hollows Rd, Imperial, MO 63052
#23 EFS Energy
Based in St. Louis, 16 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.4★ from 32 Google reviews, listed on Google as “Solar energy company”.
- 4.4★ from 32 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 2055 Craigshire Dr, St. Louis, MO 63146
#24 BKJ Solar
Based in Florissant, 18 mi away
52/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Sat 9 AM–7 PM · Sun closed
- Address
- 907 Harbor Oaks Ct, Florissant, MO 63031
#25 Brda Electric
Based in St. Louis, 5 mi away
52/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 154 Google reviews.
- 4.9★ from 154 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
- Address
- 2743 Hereford St, St. Louis, MO 63139
Solar installers 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 58 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | ARF Solar LLC | 52 | 4.9★ (28) | 24 mi |
| 27 | Ram Roofing and Solar | 52 | 5.0★ (12) | 25 mi |
| 28 | SunSent Solar | 52 | 4.7★ (9) | 11 mi |
| 29 | Constructors 911 | 52 | 4.9★ (158) | 7 mi |
| 30 | GRID LLC | 51 | 4.7★ (14) | 30 mi |
| 31 | GreenWay Financial & Energy Solutions | 51 | 5.0★ (5) | 25 mi |
| 32 | SunSent | 51 | 5.0★ (5) | 25 mi |
| 33 | All Green Energy | 51 | 5.0★ (6) | 15 mi |
| 34 | B-Raines Slate & Solar Roofing Co. | 51 | 4.4★ (19) | 10 mi |
| 35 | ECOcentrix | 51 | 5.0★ (60) | 5 mi |
| 36 | LVG Electrical & Communications | 51 | 4.9★ (75) | 5 mi |
| 37 | Solar Luxury LLC | 50 | 5.0★ (11) | 15 mi |
| 38 | Statewide Solar | 50 | 2.3★ (3) | 21 mi |
| 39 | Pyramid Electrical Contractors, Inc. | 50 | 3.5★ (24) | 12 mi |
| 40 | Skyline Roofing & Solar | 50 | 4.8★ (19) | 10 mi |
| 41 | RoofTek | 50 | 4.9★ (28) | 13 mi |
| 42 | AKA Solar LLC | 50 | 5.0★ (5) | 21 mi |
| 43 | Solar Pals | 49 | 4.7★ (15) | 35 mi |
| 44 | Solarize | 49 | 5.0★ (5) | 26 mi |
| 45 | 3MG Roofing & Solar | 49 | 4.7★ (14) | 24 mi |
| 46 | Midwest Solar Solutions | 49 | 5.0★ (4) | 13 mi |
| 47 | Day & Night Solar | 48 | 4.3★ (12) | 12 mi |
| 48 | Valoa Solar | 48 | 3.7★ (3) | 27 mi |
| 49 | five stars electric and solar LLC | 48 | 3.2★ (11) | 19 mi |
| 50 | RENAISSANCE Historic Exteriors | 47 | 4.8★ (39) | 18 mi |
Also serving Cahokia
20 more solar installers within 40 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 |
|---|---|---|
| American Patriot Solar | 5.0★ (1) | 5 mi |
| Azimuth Energy | 3.0★ (2) | 10 mi |
| Cardinal Roofing & Solar Solutions | 1.0★ (1) | 7 mi |
| Gardner Capital | 1.0★ (1) | 10 mi |
| GoSolar | 1.0★ (1) | 24 mi |
| Grandinetti Services LLC | 5.0★ (2) | 14 mi |
| Lafser & Associates, Inc. | 5.0★ (1) | 6 mi |
| Midamerica Solar LLC | 4.0★ (1) | 17 mi |
| Oncore Solar STL | 5 mi | |
| Pivot Energy | 4 mi | |
| Premier Energy Group | 5.0★ (1) | 21 mi |
| R3 Renewables | 6 mi | |
| Roof Experts | 5.0★ (1) | 16 mi |
| Solar City STL Illinois | 5.0★ (1) | 11 mi |
| Solar University | 8 mi | |
| SolarIsland Energy | 5.0★ (1) | 6 mi |
| STL Solar Plus | 5.0★ (1) | 25 mi |
| Supreme Solar Cleaning | 5.0★ (1) | 28 mi |
| The Power Company | 1.0★ (1) | 11 mi |
| US Solar | 5.0★ (1) | 15 mi |
How much do solar installers cost in Cahokia?
Typical prices in USD, adjusted for Illinois with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $26,020 | $29,430 | $32,010 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.95 East North Central factor (2025 Cost vs. Value Report) | October 2026 |
How we ranked Cahokia solar installers
We scored 58 Cahokia solar installers 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 Cahokia 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 |
Solar installers in Cahokia: frequently asked questions
Who is the best solar installer in Cahokia?
By CR Score, the highest-ranked solar installer in Cahokia, IL is Streib Company with a CR Score of 59/100. It has 4.9★ from 679 Google reviews. It is open 24/7. Bates Electric (#2) and Ltd Solar Consulting and Roofing (#3) follow. We ranked 58 solar installers on ten factors, last updated October 22, 2026.
How many solar installers are there in Cahokia?
ContractorsRanked ranks 58 solar installers serving Cahokia, IL. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which solar installers in Cahokia are open 24/7?
7 ranked solar installers in Cahokia post 24/7 hours. The highest-ranked are Streib Company (#1), Bates Electric (#2) and Ltd Solar Consulting and Roofing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Cahokia work on weekends?
24 of 58 ranked solar installers post Saturday hours and 9 post Sunday hours. The highest-ranked open Saturdays are Streib Company (#1), Bates Electric (#2) and Ltd Solar Consulting and Roofing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Cahokia?
Solar panel installation typically costs $26,020 to $32,010, with $29,430 typical (Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.95 East North Central factor (2025 Cost vs. Value Report)). The range is adjusted for Illinois. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Cahokia solar installers have?
The median Google rating among 58 rated solar installers in Cahokia is 4.8★, with a median of 16 reviews. Bates Electric has the most, 1,366 reviews, and ranks #2. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank solar installers?
Each solar installer 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.
Do solar installers outside Cahokia count in this ranking?
Yes, if they are within 40 mi of the Cahokia city center, our service radius for solar installers. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Cahokia
- October 2026: CR Scores recalculated for 58 solar installers serving Cahokia.
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