Ranked #1 because of its Google rating and availability: 5.0★ from 309 Google reviews, open 24/7.
- 5.0★ from 309 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4241 Lowell St #103, La Mesa, CA 91941
277 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in San Diego: OnPoint Solar Panel Cleaning San Diego, CR Score 91/100; 5.0★ from 309 Google reviews; open 24/7.
Best for emergencies (open 24/7): Action Solar, posts 24/7 hours; ranked #2 of 277.
Most-reviewed: Mauzy Cooling, Heating, Plumbing, and Electrical, 4,710 Google reviews at 4.8★, the most of 277 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
277 San Diego solar installers are ranked here by CR Score, from 8 published factors. 36 are open 24/7, 162 open Saturdays and 84 open Sundays, based on posted hours. The median Google rating is 4.9★ across 277 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | OnPoint Solar Panel Cleaning San Diego | 91 | 5.0★ (309) | La Mesa, 8 mi away | 24/7 | Overall |
| 2 | Action Solar | 91 | 4.9★ (143) | San Diego | 24/7 | Emergencies |
| 3 | Semper Solaris | 90 | 4.8★ (1,454) | San Diego | Sat · Sun · Evenings | — |
| 4 | Saturn Solar Cleaning | 89 | 5.0★ (129) | Chula Vista, 11 mi away | 24/7 | — |
| 5 | OnPoint Solar Panel Cleaning Clairemont | 88 | 5.0★ (34) | San Diego | 24/7 | — |
| 6 | United Plumbing Heating Air & Electric | 88 | 4.9★ (1,612) | San Diego | 24/7 | — |
| 7 | South Bay Cleaning LLC | 88 | 5.0★ (50) | Chula Vista, 10 mi away | 24/7 | — |
| 8 | Guthrie & Sons Heating, Air and Solar | 87 | 4.9★ (1,494) | San Diego | Sat · Sun · Evenings | — |
| 9 | OnPoint Solar Panel Cleaning Chula Vista | 87 | 5.0★ (49) | Chula Vista, 14 mi away | 24/7 | — |
| 10 | Mauzy Cooling, Heating, Plumbing, and Electrical | 87 | 4.8★ (4,710) | El Cajon, 14 mi away | 24/7 | Most reviews |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and availability: 5.0★ from 309 Google reviews, open 24/7.
Based in San Diego
Ranked #2 because of its Google rating and availability: 4.9★ from 143 Google reviews, open 24/7.
Based in San Diego
Ranked #3 because of its Google rating and trade focus: 4.8★ from 1,454 Google reviews, listed on Google as “Solar energy company”.
Based in Chula Vista, 11 mi away
Ranked #4 because of its Google rating and availability: 5.0★ from 129 Google reviews, open 24/7.
Based in San Diego
Ranked #5 because of its Google rating and availability: 5.0★ from 34 Google reviews, open 24/7.
Based in San Diego
Ranked #6 because of its Google rating and availability: 4.9★ from 1,612 Google reviews, open 24/7.
Based in Chula Vista, 10 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 50 Google reviews, open 24/7.
Based in San Diego
Ranked #8 because of its Google rating and review volume: 4.9★ from 1,494 Google reviews, 1,494 Google reviews.
Based in Chula Vista, 14 mi away
Ranked #9 because of its Google rating and availability: 5.0★ from 49 Google reviews, open 24/7.
Based in El Cajon, 14 mi away
Ranked #10 because of its Google rating and review volume: 4.8★ from 4,710 Google reviews, the most Google reviews on this list (4,710).
Based in Casa de Oro-Mount Helix, 12 mi away
Ranked #11 because of its Google rating and availability: 5.0★ from 32 Google reviews, open 24/7.
Based in Lakeside, 17 mi away
Ranked #12 because of its Google rating and availability: 5.0★ from 36 Google reviews, open 24/7.
Based in San Diego
Ranked #13 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Solar energy company”.
Based in El Cajon, 13 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 1,836 Google reviews, 1,836 Google reviews.
Based in San Diego
Ranked #15 because of its Google rating and availability: 4.8★ from 507 Google reviews, open 24/7.
Based in San Diego
Ranked #16 because of its Google rating and trade focus: 4.8★ from 469 Google reviews, listed on Google as “Solar energy company”.
Based in San Diego
Ranked #17 because of its Google rating and trade focus: 5.0★ from 137 Google reviews, listed on Google as “Solar energy company”.
Based in San Diego
Ranked #18 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Solar energy system service”.
Based in San Diego
Ranked #19 because of its Google rating and trade focus: 4.7★ from 39 Google reviews, listed on Google as “Solar energy company”.
Based in San Diego
Ranked #20 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Solar energy company”.
Based in San Diego
Ranked #21 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Solar energy company”.
Based in El Cajon, 13 mi away
Ranked #22 because of its Google rating and review volume: 4.8★ from 1,190 Google reviews, 1,190 Google reviews.
Based in San Diego
Ranked #23 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Solar energy system service”.
Based in San Diego
Ranked #24 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “Solar energy company”.
Based in Escondido, 28 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 2,727 Google reviews, listed on Google as “Solar energy company”.
#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 277 ranked solar installers here; the rest are on their profiles.
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 |
|---|---|---|
| BH Construction Services | 3.0★ (2) | In San Diego |
| Calafata Construction & Electric Inc | 5.0★ (2) | In San Diego |
| CIT Solar | 5.0★ (2) | In San Diego |
| Eco Minded Solutions | 4.4★ (38) | In San Diego |
| Energy Electric SD Inc | 5.0★ (14) | In San Diego |
| Gemini Energy Services | 3.5★ (6) | In San Diego |
| GHESolar Company Alvarado | 5.0★ (2) | In San Diego |
| Higher Power Solar | 5.0★ (2) | In San Diego |
| House Fan Pros | 5.0★ (220) | In San Diego |
| Human Solution Innovations, Inc. | 5.0★ (2) | In San Diego |
| iL Progetto LLC | 5.0★ (33) | In San Diego |
| Kaminskiy Commercial Construction | 4.7★ (32) | In San Diego |
| Lennar | 3.2★ (11) | In San Diego |
| LIGHTWORKS | 4.8★ (21) | In San Diego |
| Mission Solar Electric | 3.0★ (2) | In San Diego |
| Mister Electric | 4.7★ (6) | In San Diego |
| Sun and Done | 5.0★ (2) | In San Diego |
| Synergy Companies | 4.6★ (34) | In San Diego |
| The Right Guy Electric | 5.0★ (3) | In San Diego |
| Tri Pointe Homes | 2.3★ (7) | In San Diego |
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 |
We scored 277 San Diego solar installers on 8 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. Unknown factors are left out of the score, 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 San Diego data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |