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By CR Score, the highest-ranked solar installer in Ontario, OR is Beacon Plumbing, Heating, Air-Conditioning, and Electrical, Inc with a CR Score of 84/100. It has 5.0★ from 320 Google reviews. It is open 24/7. Defused Electrical Innovations LLC (#2) and Real estate & solar (#3) follow. We ranked 8 solar installers on 8 factors, last updated October 22, 2026.
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2 ranked solar installers in Ontario post 24/7 hours. The highest-ranked are Beacon Plumbing, Heating, Air-Conditioning, and Electrical, Inc (#1) and Defused Electrical Innovations LLC (#2). Hours come from each business's Google listing as of October 2026, so call to confirm.
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6 of 8 ranked solar installers post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are Beacon Plumbing, Heating, Air-Conditioning, and Electrical, Inc (#1), Defused Electrical Innovations LLC (#2) and Real estate & solar (#3). Posted hours are office hours; crews may book weekend jobs separately.
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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 Oregon. Prices were last checked October 2026. Get at least two written quotes before you hire.
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The median Google rating among 8 rated solar installers in Ontario is 4.9★, with a median of 41 reviews. Treasure Valley Exteriors has the most, 640 reviews, and ranks #4. We adjust ratings for review count, so a few five-star reviews cannot top the list.
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Each solar installer gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
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Yes, if they are within 40 mi of the Ontario 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.
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No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.