260 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Mountain House: Smart Solar Panel Cleaning Bay Area, CR Score 60/100; 5.0★ from 418 Google reviews; open 24/7.
Best for emergencies (open 24/7): EnergyAid, posts 24/7 hours; ranked #2 of 260.
Most-reviewed: Honey's Air & Solar, 5,700 Google reviews at 4.9★, the most of 260 ranked; ranked #21.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
260 Mountain House solar installers are ranked here by CR Score, from ten published factors. 30 are open 24/7, 137 open Saturdays and 74 open Sundays, based on posted hours. The median Google rating is 4.9★ across 260 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Smart Solar Panel Cleaning Bay Area | 60 | 5.0★ (418) | Hayward, 33 mi away | 24/7 | Overall |
| 2 | EnergyAid | 59 | 4.8★ (842) | Fremont, 29 mi away | 24/7 | Emergencies |
| 3 | HomePro Solutions | 58 | 4.9★ (70) | Brentwood, 12 mi away | Sat · Sun · Evenings | — |
| 4 | East Bay Solar Cleaning LLC | 57 | 5.0★ (104) | Lafayette, 32 mi away | 24/7 | — |
| 5 | Solar Shine | 57 | 4.9★ (268) | Antioch, 30 mi away | Sat · Sun | — |
| 6 | Hurst Solar Panel Cleaning | 57 | 5.0★ (118) | Oakley, 15 mi away | Sat | — |
| 7 | American Array Solar and Roofing | 57 | 4.5★ (172) | Livermore, 14 mi away | Sat · Sun · Evenings | — |
| 8 | Sunrun Solar | 57 | 4.5★ (276) | Stockton, 18 mi away | Sat · Sun | — |
| 9 | Semper Solaris | 56 | 4.6★ (480) | Hayward, 31 mi away | Sat · Sun · Evenings | — |
| 10 | Premier Solar Service & Solar Panel Cleaning Tracy | 56 | 5.0★ (19) | Modesto, 20 mi away | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 418 Google reviews, listed on Google as “Solar energy company”.
Based in Fremont, 29 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 842 Google reviews, listed on Google as “Solar energy company”.
Based in Brentwood, 12 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 70 Google reviews, listed on Google as “Solar energy company”.
Based in Lafayette, 32 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 104 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Antioch, 30 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “Solar energy company”.
Based in Oakley, 15 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Solar energy company”.
Based in Livermore, 14 mi away
Ranked #7 because of its Google rating and trade focus: 4.5★ from 172 Google reviews, listed on Google as “Solar energy company”.
Based in Stockton, 18 mi away
Ranked #8 because of its Google rating and trade focus: 4.5★ from 276 Google reviews, listed on Google as “Solar energy company”.
Based in Hayward, 31 mi away
Ranked #9 because of its Google rating and trade focus: 4.6★ from 480 Google reviews, listed on Google as “Solar energy company”.
Based in Modesto, 20 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Solar energy company”.
Based in Livermore, 12 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 83 Google reviews, listed on Google as “Solar energy company”.
Based in Manteca, 21 mi away
Ranked #12 because of its Google rating and review volume: 4.9★ from 542 Google reviews.
Based in Dublin, 23 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 128 Google reviews, listed on Google as “Solar energy company”.
Based in Modesto, 18 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Solar energy company”.
Based in San Jose, 34 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 107 Google reviews, listed on Google as “Solar energy system service”.
Based in Modesto, 26 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Solar energy company”.
Based in Modesto, 34 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Solar energy company”.
Based in Walnut Creek, 30 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Solar energy company”.
Based in Fremont, 31 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Solar energy system service”.
Based in Modesto, 32 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Modesto, 30 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 5,700 Google reviews, the most in Mountain House.
Based in Tracy, 7 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Solar energy system service”.
Based in Concord, 31 mi away
Ranked #23 because of its Google rating and trade focus: 4.6★ from 135 Google reviews, listed on Google as “Solar energy company”.
Based in Modesto, 28 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 119 Google reviews, listed on Google as “Solar energy company”.
Based in Redwood Shores, 37 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 55 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 260 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Sunrun Solar | 55 | 4.4★ (281) | 31 mi |
| 27 | North Valley Solar Power | 54 | 4.9★ (11) | 6 mi |
| 28 | Solar Harmonics | 54 | 5.0★ (68) | 14 mi |
| 29 | Loves Air | 54 | 5.0★ (2,337) | 25 mi |
| 30 | Besty Solar Inc. | 54 | 5.0★ (63) | 29 mi |
| 31 | Smart Solar Panel Cleaning Bay Area | 54 | 5.0★ (44) | 20 mi |
| 32 | SolarSesame | 54 | 4.9★ (126) | 34 mi |
| 33 | SQKII Clean Window, Solar, & Gutter | 54 | 5.0★ (24) | 15 mi |
| 34 | Solar Shine Solutions | 54 | 5.0★ (4) | 12 mi |
| 35 | North Valley Solar Power | 54 | 4.9★ (19) | 17 mi |
| 36 | Smart Solar Panel Cleaning San Jose | 53 | 5.0★ (11) | 33 mi |
| 37 | North Valley Solar Power | 53 | 4.8★ (22) | 18 mi |
| 38 | Derek Sawyer’s Heating, Furnace & Air Conditioning repair - Modesto | 53 | 4.8★ (1,637) | 30 mi |
| 39 | Sunrun Solar | 53 | 4.0★ (115) | 22 mi |
| 40 | United Solar Electric | 53 | 4.8★ (51) | 14 mi |
| 41 | ESA | 53 | 4.6★ (5) | 27 mi |
| 42 | Apex Solar Cleaning | 53 | 4.6★ (11) | In Mountain House |
| 43 | Sunrun Solar by Jon | 53 | 5.0★ (37) | 40 mi |
| 44 | Solar Energy Plus LLC | 53 | 5.0★ (3) | 6 mi |
| 45 | Sky Power Solar | 53 | 4.4★ (14) | 23 mi |
| 46 | Porter Solar Solutions | 53 | 5.0★ (205) | 37 mi |
| 47 | Simply Clean Solar Panel & Gutters | 53 | 5.0★ (37) | 17 mi |
| 48 | American Array Solar | 53 | 4.2★ (5) | 18 mi |
| 49 | Smart Home Security Control | 53 | 5.0★ (31) | 29 mi |
| 50 | Freedom Forever | 53 | 4.2★ (153) | 11 mi |
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) | 8 mi |
| Banta Electric & Solar | 5.0★ (2) | 10 mi |
| Contra Costa Sun | 5.0★ (2) | 26 mi |
| Eagle Shield | 3.0★ (2) | 27 mi |
| Estrada Exterior Cleaning Corp | 5.0★ (2) | 29 mi |
| GHESolar Company Fremont | 5.0★ (2) | 27 mi |
| GT Solar Power Concord | 5.0★ (2) | 31 mi |
| Home Solar Inc. | 5.0★ (2) | 31 mi |
| NC Electric & Solar Inc | 3.0★ (2) | 29 mi |
| Phillips Builders | 5.0★ (2) | 30 mi |
| Port City Solar Cleaning LLC | 5.0★ (2) | 19 mi |
| Solar Bar Install | 4.0★ (2) | 34 mi |
| Solar Customized SJ Solutions | 5.0★ (2) | 34 mi |
| Solar Sense PV, Inc. | 1.0★ (2) | 21 mi |
| SolarPanal EranNSave Danville | 5.0★ (2) | 20 mi |
| SolarPower Divine Tracy | 5.0★ (2) | 7 mi |
| Spartan Home Services | 5.0★ (2) | 24 mi |
| TopOfTheLine SolarPanels Tracy | 5.0★ (2) | 8 mi |
| Triad Power Solutions | 5.0★ (2) | 23 mi |
| Vonnegut Electric & Solar | 5.0★ (2) | 26 mi |
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 260 Mountain House 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 Mountain House 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 |