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Best Solar Installers in St. Louis, MO (2026)

60 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in St. Louis: Streib Company, CR Score 61/100; 4.9★ from 679 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Ltd Solar Consulting and Roofing, posts 24/7 hours; ranked #2 of 60.

  3. 4

    Most-reviewed: Bates Electric, 1,366 Google reviews at 4.8★, the most of 60 ranked; ranked #4.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

60 St. Louis solar installers are ranked here by CR Score, from ten published factors. 8 are open 24/7, 26 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.9★ across 60 rated businesses.

Top 10 solar installers in St. Louis at a glance

Top 10 solar installers in St. Louis at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Streib Company614.9★ (679)St. Louis24/7Overall
2Ltd Solar Consulting and Roofing605.0★ (10)St. Louis24/7Emergencies
3StraightUp Solar594.9★ (128)St. Louis——
4Bates Electric584.8★ (1,366)Arnold, 19 mi away24/7Most reviews
5Astrawatt Solar574.7★ (47)Olivette, 11 mi awaySat · Evenings—
6AMA ENERGY SOLUTIONS LLC564.0★ (8)Sappington, 12 mi away24/7—
7Route 66 Solar564.9★ (119)Edwardsville, 17 mi awayEvenings—
8Sun Solar Illinois564.6★ (77)East Saint Louis, 3 mi away——
9Solar R&R Kings565.0★ (4)East Saint Louis, 3 mi awaySat · Sun—
10SunSent Solar564.6★ (106)Saint Charles, 20 mi awaySat—

The 60 best solar installers in St. Louis, 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.

  1. Ranked #1 in St. Louis

    #1 Streib Company

    Based in St. Louis

    61/100CR 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
    View profile for Streib Company(314) 487-7474

  3. #3 StraightUp Solar

    Based in St. Louis

    59/100CR Score

    Ranked #3 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
    View profile for StraightUp Solar(314) 218-2663

  4. #4 Bates Electric

    Based in Arnold, 19 mi away

    58/100CR Score

    Ranked #4 because of its Google rating and review volume: 4.8★ from 1,366 Google reviews, the most in St. Louis.

    • 4.8★ from 1,366 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2006 Sierra Pkwy, Arnold, MO 63010
    View profile for Bates Electric(636) 242-6334

  5. #5 Astrawatt Solar

    Based in Olivette, 11 mi away

    57/100CR Score

    Ranked #5 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
    View profile for Astrawatt Solar(314) 451-2788

  7. #7 Route 66 Solar

    Based in Edwardsville, 17 mi away

    56/100CR Score

    Ranked #7 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
    View profile for Route 66 Solar(618) 900-1280

  8. #8 Sun Solar Illinois

    Based in East Saint Louis, 3 mi away

    56/100CR Score

    Ranked #8 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
    View profile for Sun Solar Illinois(855) 464-6786

  9. #9 Solar R&R Kings

    Based in East Saint Louis, 3 mi away

    56/100CR Score

    Ranked #9 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
    View profile for Solar R&R Kings(305) 803-5735

  10. #10 SunSent Solar

    Based in Saint Charles, 20 mi away

    56/100CR Score

    Ranked #10 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
    View profile for SunSent Solar(636) 757-3083

  11. #11 Solar City STL

    Based in St. Louis

    56/100CR Score

    Ranked #11 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
    View profile for Solar City STL(314) 254-8100

  12. #12 Shinnova Home + Solar

    Based in Bridgeton, 17 mi away

    56/100CR Score

    Ranked #12 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
    View profile for Shinnova Home + Solar(636) 330-8314

  13. #13 SunKey Solar

    Based in St. Louis

    55/100CR Score

    Ranked #13 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
    View profile for SunKey Solar(314) 584-8020

  15. #15 EFS Energy

    Based in St. Louis

    55/100CR Score

    Ranked #15 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
    View profile for EFS Energy(314) 771-5131

  17. #17 Freedom Forever

    Based in Mascoutah, 22 mi away

    54/100CR Score

    Ranked #17 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
    View profile for Freedom Forever(888) 557-6431

  18. #18 proSOLAR

    Based in Ballwin, 15 mi away

    54/100CR Score

    Ranked #18 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
    View profile for proSOLAR(314) 703-3888

  19. #19 Brda Electric

    Based in Ballwin, 15 mi away

    54/100CR Score

    Ranked #19 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
    View profile for Brda Electric(636) 764-6225

  20. #20 Brda Electric

    Based in St. Louis

    53/100CR Score

    Ranked #20 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
    View profile for Brda Electric(636) 206-6468

  21. #21 BKJ Solar

    Based in Florissant, 15 mi away

    53/100CR Score

    Ranked #21 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
    View profile for BKJ Solar(314) 899-5527

  22. #22 eEquals Solar

    Based in Edwardsville, 18 mi away

    53/100CR Score

    Ranked #22 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
    View profile for eEquals Solar(801) 444-5130

  23. #23 ARF Solar LLC

    Based in East Alton, 20 mi away

    53/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Solar energy company”.

    • 4.9★ from 28 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    326 W MacArthur Dr, Cottage Hills, IL 62018
    View profile for ARF Solar LLC(618) 977-4248

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 60 ranked solar installers here; the rest are on their profiles.

solar installers in St. Louis, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Ram Roofing and Solar535.0★ (12)23 mi
27Solar Luxury LLC535.0★ (11)In St. Louis
28All Around Tree Care Services LLC524.8★ (66)24 mi
29SunSent Solar524.7★ (9)12 mi
30Exceptional Energy Solutions525.0★ (17)21 mi
31SunSent525.0★ (5)22 mi
32GreenWay Financial & Energy Solutions525.0★ (5)23 mi
33All Green Energy525.0★ (6)14 mi
34GRID LLC524.7★ (14)29 mi
35B-Raines Slate & Solar Roofing Co.524.4★ (19)8 mi
36ECOcentrix525.0★ (60)In St. Louis
37Skyline Roofing & Solar524.8★ (19)In St. Louis
38Statewide Solar512.3★ (3)17 mi
39LVG Electrical & Communications504.9★ (75)7 mi
40AKA Solar LLC505.0★ (5)19 mi
41RoofTek504.9★ (28)11 mi
42Pyramid Electrical Contractors, Inc.503.5★ (24)12 mi
43Solar Pals504.7★ (15)33 mi
443MG Roofing & Solar494.7★ (14)23 mi
45RoofWorx - Wentzville495.0★ (61)39 mi
46Resolute Energy Solutions495.0★ (6)40 mi
47Midwest Solar Solutions495.0★ (4)15 mi
48Solarize495.0★ (5)29 mi
49Day & Night Solar494.3★ (12)10 mi
50Valoa Solar483.7★ (3)24 mi

Also serving St. Louis

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.

Unranked solar installers serving St. Louis
BusinessGoogle ratingDistance
American Patriot Solar5.0★ (1)In St. Louis
AMF Electrical Contractors Inc.4.6★ (22)In St. Louis
Angle Roofing & Gutter Company4.5★ (31)In St. Louis
Azimuth Energy3.0★ (2)8 mi
Azimuth RenewablesIn St. Louis
Cardinal Roofing & Solar Solutions1.0★ (1)In St. Louis
Dole Heating & Air Conditioning4.9★ (1,401)In St. Louis
Engineered Solar SolutionsIn St. Louis
Gallagher Bros Construction4.9★ (639)In St. Louis
Grandinetti Services LLC5.0★ (2)12 mi
Guarantee Electrical Co4.3★ (26)In St. Louis
Kaemmerlen Communications3.2★ (18)In St. Louis
Kirberg Company4.1★ (18)In St. Louis
Koala Insulation of St. Louis4.9★ (430)In St. Louis
Lafser & Associates, Inc.5.0★ (1)In St. Louis
Pivot EnergyIn St. Louis
R3 RenewablesIn St. Louis
SolarIsland Energy5.0★ (1)In St. Louis
StraightUp Solar WarehouseIn St. Louis
WYRITIn St. Louis

How much do solar installers cost in St. Louis?

Typical prices in USD, adjusted for Missouri with a published regional index. Each row names its basis and month.

How much do solar installers cost in St. Louis?
JobLowTypicalHighBasisChecked
Solar panel installation$26,570$30,060$32,700Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.97 West North Central factor (2025 Cost vs. Value Report)October 2026

How we ranked St. Louis solar installers

We scored 60 St. Louis 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn St. Louis data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Solar installers in St. Louis: frequently asked questions

Who is the best solar installer in St. Louis?

By CR Score, the highest-ranked solar installer in St. Louis, MO is Streib Company with a CR Score of 61/100. It has 4.9★ from 679 Google reviews. It is open 24/7. Ltd Solar Consulting and Roofing (#2) and StraightUp Solar (#3) follow. We ranked 60 solar installers on ten factors, last updated October 22, 2026.

How many solar installers are there in St. Louis?

ContractorsRanked ranks 60 solar installers serving St. Louis, MO. 11 of them are based in St. Louis; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.

Which solar installers in St. Louis are open 24/7?

8 ranked solar installers in St. Louis post 24/7 hours. The highest-ranked are Streib Company (#1), Ltd Solar Consulting and Roofing (#2) and Bates Electric (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which solar installers in St. Louis work on weekends?

26 of 60 ranked solar installers post Saturday hours and 9 post Sunday hours. The highest-ranked open Saturdays are Streib Company (#1), Ltd Solar Consulting and Roofing (#2) and Bates Electric (#4). Posted hours are office hours; crews may book weekend jobs separately.

How much does solar panel installation cost in St. Louis?

Solar panel installation typically costs $26,570 to $32,700, with $30,060 typical (Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.97 West North Central factor (2025 Cost vs. Value Report)). The range is adjusted for Missouri. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do St. Louis solar installers have?

The median Google rating among 60 rated solar installers in St. Louis is 4.9★, with a median of 16 reviews. Bates Electric has the most, 1,366 reviews, and ranks #4. 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 St. Louis count in this ranking?

Yes, if they are within 40 mi of the St. Louis 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 St. Louis

  1. October 2026: CR Scores recalculated for 60 solar installers serving St. Louis.

More solar installers and St. Louis pages

Other trades in St. Louis