59/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.5★ from 276 Google reviews, listed on Google as “Solar energy company”.
- 4.5★ from 276 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 1551 Stimson St #4, Stockton, CA 95206
Best Solar Installers in Lathrop, CA (2026)
139 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Lathrop: Sunrun Solar, CR Score 59/100; 4.5★ from 276 Google reviews; open 7 days a week.
- 4
Best for emergencies (open 24/7): Solar Energy Partners - Official, posts 24/7 hours; ranked #4 of 139.
- 7
Most-reviewed: Honey's Air & Solar, 5,700 Google reviews at 4.9★, the most of 139 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
139 Lathrop solar installers are ranked here by CR Score, from ten published factors. 16 are open 24/7, 80 open Saturdays and 47 open Sundays, based on posted hours. The median Google rating is 4.9★ across 139 rated businesses.
Top 10 solar installers in Lathrop at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sunrun Solar | 59 | 4.5★ (276) | Stockton, 5 mi away | Sat · Sun | Overall |
| 2 | Semper Solaris | 58 | 4.9★ (542) | Manteca, 7 mi away | Sat · Sun · Evenings | — |
| 3 | E and F Services | 58 | 5.0★ (28) | Modesto, 6 mi away | Sat · Sun · Evenings | — |
| 4 | Solar Energy Partners - Official | 58 | 4.8★ (24) | Modesto, 14 mi away | 24/7 | Emergencies |
| 5 | Super Cleaning Solar Service | 57 | 5.0★ (34) | Modesto, 23 mi away | 24/7 | — |
| 6 | Dowd Solar Netting and Cleaning | 57 | 4.9★ (68) | Modesto, 19 mi away | Sat · Sun | — |
| 7 | Honey's Air & Solar | 57 | 4.9★ (5,700) | Modesto, 17 mi away | — | Most reviews |
| 8 | Premier Solar Service & Solar Panel Cleaning Tracy | 57 | 5.0★ (19) | Modesto, 19 mi away | 24/7 | — |
| 9 | ProSol | 57 | 4.9★ (119) | Modesto, 18 mi away | Sat | — |
| 10 | Solar Shine | 56 | 4.9★ (268) | Antioch, 36 mi away | Sat · Sun | — |
The 139 best solar installers in Lathrop, 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 Manteca, 7 mi away
58/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 542 Google reviews.
- 4.9★ from 542 Google reviews
- Hours
- Mon–Sat 7 AM–12 AM · Sun 9 AM–12 AM
- Address
- 3025 Palm Ave Suite 101, Manteca, CA 95337
Based in Modesto, 6 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 28 Google reviews
- Hours
- Mon–Sun 8 AM–7 PM
Based in Modesto, 14 mi away
58/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4260 Sisk Rd Suite A, Modesto, CA 95356
Based in Modesto, 23 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 34 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Modesto, 19 mi away
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Solar panel maintenance service”.
- 4.9★ from 68 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat 8 AM–6 PM · Sun 12 PM–3 PM
- Address
- 2505 Liberty Ct, Modesto, CA 95355
Based in Modesto, 17 mi away
57/100CR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 5,700 Google reviews, the most in Lathrop.
- 4.9★ from 5,700 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat–Sun closed
- Address
- 501 Bitritto Wy, Modesto, CA 95356
Based in Modesto, 19 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 19 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#9 ProSol
Based in Modesto, 18 mi away
57/100CR ScoreRanked #9 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–Sat 7 AM–5 PM · Sun closed
- Address
- 3430 Maze Blvd, Modesto, CA 95358
#10 Solar Shine
Based in Antioch, 36 mi away
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 268 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
Based in Brentwood, 23 mi away
56/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 70 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 9010 Brentwood Blvd STE F, Brentwood, CA 94513
#12 Loves Air
Based in Salida, 12 mi away
56/100CR ScoreRanked #12 because of its Google rating and review volume: 5.0★ from 2,337 Google reviews.
- 5.0★ from 2,337 Google reviews
- Hours
- Mon–Fri 7:30 AM–7:30 PM · Sat 8:30 AM–4:30 PM · Sun closed
- Address
- 5536 Pirrone Rd, Salida, CA 95368
Based in Oakley, 22 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 118 Google reviews
- Hours
- Mon–Sat 7 AM–5 PM · Sun closed
- Address
- 640 Allagash Ct, Oakley, CA 94561
Based in Lathrop
56/100CR ScoreRanked #14 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–Fri 8 AM–5 PM · Sat–Sun 8 AM–7 PM
Based in Manteca, 25 mi away
55/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Solar energy company”.
- 5.0★ from 37 Google reviews
- Hours
- Mon–Fri 9 AM–9 PM · Sat–Sun 10 AM–9 PM
#16 ESA
Based in Modesto, 14 mi away
55/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 5 Google reviews, listed on Google as “Solar energy system service”.
- 4.6★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3900 PELANDALE AVE STE 420, MPB 161, Modesto, CA 95356
Based in Manteca, 4 mi away
55/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Solar energy system service”.
- 4.2★ from 5 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun 9 AM–8 PM
- Address
- 211 Oak St, Manteca, CA 95337
Based in Modesto, 18 mi away
55/100CR ScoreRanked #18 because of its Google rating and review volume: 4.8★ from 1,637 Google reviews.
- 4.8★ from 1,637 Google reviews
- Hours
- Mon–Thu 7 AM–7 PM · Fri 7 AM–6 PM · Sat 8 AM–5 PM · Sun 8 AM–4 PM
- Address
- 1001 Carver Rd, Modesto, CA 95350
Based in Stockton, 9 mi away
55/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 22 Google reviews
- Hours
- Mon–Sat 7 AM–10 PM · Sun closed
- Address
- 110 N San Joaquin St floor 2, Stockton, CA 95202
Based in Livermore, 29 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.5★ from 172 Google reviews, listed on Google as “Solar energy company”.
- 4.5★ from 172 Google reviews
- Hours
- Mon–Sun 9 AM–8 PM
- Address
- 2021 Las Positas Ct # 129, Livermore, CA 94551
Based in Tracy, 10 mi away
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Solar energy system service”.
- 5.0★ from 18 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–1 PM · Sun closed
- Address
- 68 Eleventh St #115, Tracy, CA 95376
Based in Manteca, 11 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Gutter cleaning service”.
- 5.0★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#23 Kingdom Solar
Based in Livermore, 26 mi away
54/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 83 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 83 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 2364 Research Dr, Livermore, CA 94550
Based in Stockton, 10 mi away
54/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Gutter cleaning service”.
- 5.0★ from 37 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
- Address
- 1344 Wilshire Ave, Stockton, CA 95203
Based in Tracy, 10 mi away
54/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 11 Google reviews, listed on Google as “Solar energy company”.
- 4.9★ from 11 Google reviews
- Hours
- Mon–Sat 7 AM–10 PM · Sun closed
- Address
- 2311 N Tracy Blvd a 8, Tracy, CA 95376
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 139 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Solar Installation Group, Inc. | 54 | 4.8★ (252) | 25 mi |
| 27 | Earth Klingers Star Fleet Solar Academy | 54 | 5.0★ (12) | 3 mi |
| 28 | Solar Bill Review | 54 | 5.0★ (128) | 37 mi |
| 29 | Infusion Energy LLC | 54 | 5.0★ (9) | 22 mi |
| 30 | Velasco's Electrical | 53 | 5.0★ (7) | 21 mi |
| 31 | North Valley Solar Power | 53 | 4.9★ (18) | 20 mi |
| 32 | Lee Solar Clean | 53 | 4.4★ (13) | 15 mi |
| 33 | NorCal Solar Services | 53 | 4.4★ (7) | 20 mi |
| 34 | Solar Harmonics | 53 | 5.0★ (68) | 25 mi |
| 35 | Phenomenal Auto Detailing | 53 | 5.0★ (119) | 24 mi |
| 36 | Century 22 Solar and Home | 53 | 5.0★ (4) | 11 mi |
| 37 | Radius Energy Inc | 52 | 4.5★ (40) | 13 mi |
| 38 | Solar Gain West | 52 | 5.0★ (8) | 5 mi |
| 39 | Smart Solar Panel Cleaning Bay Area | 52 | 5.0★ (44) | 35 mi |
| 40 | North Valley Solar Power | 52 | 4.9★ (19) | 28 mi |
| 41 | DreamWorx Power | 52 | 5.0★ (11) | 11 mi |
| 42 | Apex Energy Group | 52 | 4.6★ (10) | 16 mi |
| 43 | Eco Equity Company LLC | 52 | 3.7★ (3) | 11 mi |
| 44 | 1st Light Energy | 52 | 3.9★ (76) | 6 mi |
| 45 | United Solar Electric | 52 | 4.8★ (51) | 25 mi |
| 46 | Masellis Electric & Solar, Inc. | 51 | 5.0★ (4) | 15 mi |
| 47 | Toppri_Wash | 51 | 4.8★ (17) | In Lathrop |
| 48 | CalSolar | 51 | 4.5★ (8) | 9 mi |
| 49 | SunLectric | 51 | 5.0★ (24) | 24 mi |
| 50 | Clear Solar Solutions, Inc | 51 | 5.0★ (55) | 32 mi |
Also serving Lathrop
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 |
|---|---|---|
| 5 Star Solar Panel N Tiles Tracy | 5.0★ (2) | 9 mi |
| Apollo Solar Shine | In Lathrop | |
| Banta Electric & Solar | 5.0★ (2) | 7 mi |
| Blue Collar Electrical Services | 5.0★ (25) | In Lathrop |
| Contra Costa Sun | 5.0★ (2) | 39 mi |
| Eagles Landing by D.R. Horton | 5.0★ (22) | In Lathrop |
| Golden Star Roofing & Solar | 5.0★ (1) | 10 mi |
| Home Solar Inc. | 5.0★ (2) | 35 mi |
| Nucor Rebar Fabrication | 4.1★ (49) | In Lathrop |
| Phillips Builders | 5.0★ (2) | 25 mi |
| Port City Solar Cleaning LLC | 5.0★ (2) | 6 mi |
| SCB Solar | In Lathrop | |
| SOL Solar Panel Cleaning | 5.0★ (1) | In Lathrop |
| Solar Sense PV, Inc. | 1.0★ (2) | 36 mi |
| SolarPanal EranNSave Danville | 5.0★ (2) | 35 mi |
| SolarPower Divine Tracy | 5.0★ (2) | 10 mi |
| Spartan Home Services | 5.0★ (2) | 39 mi |
| SunRun Solar | 3.0★ (2) | 31 mi |
| TopOfTheLine SolarPanels Tracy | 5.0★ (2) | 9 mi |
| Triad Power Solutions | 5.0★ (2) | 37 mi |
How much do solar installers cost in Lathrop?
Typical prices in USD, adjusted for California with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $29,770 | $33,680 | $36,640 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report) | October 2026 |
How we ranked Lathrop solar installers
We scored 139 Lathrop 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 Lathrop 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 Lathrop: frequently asked questions
Who is the best solar installer in Lathrop?
By CR Score, the highest-ranked solar installer in Lathrop, CA is Sunrun Solar with a CR Score of 59/100. It has 4.5★ from 276 Google reviews. It is open 7 days a week. Semper Solaris (#2) and E and F Services (#3) follow. We ranked 139 solar installers on ten factors, last updated October 22, 2026.
How many solar installers are there in Lathrop?
ContractorsRanked ranks 139 solar installers serving Lathrop, CA. 2 of them are based in Lathrop; 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 Lathrop are open 24/7?
16 ranked solar installers in Lathrop post 24/7 hours. The highest-ranked are Solar Energy Partners - Official (#4), Super Cleaning Solar Service (#5) and Premier Solar Service & Solar Panel Cleaning Tracy (#8). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Lathrop work on weekends?
80 of 139 ranked solar installers post Saturday hours and 47 post Sunday hours. The highest-ranked open Saturdays are Sunrun Solar (#1), Semper Solaris (#2) and E and F Services (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Lathrop?
Solar panel installation typically costs $29,770 to $36,640, with $33,680 typical (Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report)). The range is adjusted for California. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Lathrop solar installers have?
The median Google rating among 139 rated solar installers in Lathrop is 4.9★, with a median of 18 reviews. Honey's Air & Solar has the most, 5,700 reviews, and ranks #7. 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 Lathrop count in this ranking?
Yes, if they are within 40 mi of the Lathrop 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 Lathrop
- October 2026: CR Scores recalculated for 139 solar installers serving Lathrop.
More solar installers and Lathrop pages
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