62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 2,776 Google reviews, the most in Union Gap.
- 4.9★ from 2,776 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1153 W Valley Mall Blvd, Union Gap, WA 98903
Best Solar Installers in Union Gap, WA (2026)
6 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Union Gap: Campbell & Company, CR Score 62/100; 4.9★ from 2,776 Google reviews; open 24/7.
- 3
Most-reviewed: Yakima Window Washing, 50 Google reviews at 5.0★, the most of 6 ranked after Campbell & Company; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
6 Union Gap solar installers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 3 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 5.0★ across 6 rated businesses.
Most of this list also appears on the Solar installers in Yakima ranking. See Solar installers in Yakima
Top 6 solar installers in Union Gap at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Campbell & Company | 62 | 4.9★ (2,776) | Union Gap | 24/7 | Overall |
| 2 | SolShine Solar Panel Cleaning | 57 | 4.9★ (40) | Tacoma, 18 mi away | Sat · Sun · Evenings | — |
| 3 | Yakima Window Washing | 54 | 5.0★ (50) | Union Gap | Sat · Sun · Evenings | Most reviews |
| 4 | Solora Solar | 54 | 4.8★ (16) | Yakima, 4 mi away | — | — |
| 5 | AllCities Solar | 49 | 5.0★ (5) | Yakima, 1 mi away | — | — |
| 6 | Ellensburg Solar | 47 | 5.0★ (5) | Selah, 21 mi away | — | — |
The 6 best solar installers in Union Gap, 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 Tacoma, 18 mi away
57/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Solar energy system service”.
- 4.9★ from 40 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun 9 AM–8 PM
Based in Union Gap
54/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Window cleaning service”.
- 5.0★ from 50 Google reviews
- Hours
- Mon–Sun 6 AM–7 PM
#4 Solora Solar
Based in Yakima, 4 mi away
54/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Solar energy company”.
- 4.8★ from 16 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 324 W Yakima Ave #B, Yakima, WA 98902
Based in Yakima, 1 mi away
49/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy equipment supplier”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 2014 S 1st St, Yakima, WA 98903
Based in Selah, 21 mi away
47/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy equipment supplier”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat–Sun closed
How much do solar installers cost in Union Gap?
Typical prices in USD, adjusted for Washington 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 Union Gap solar installers
We scored 6 Union Gap 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 Union Gap 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 Union Gap: frequently asked questions
Who is the best solar installer in Union Gap?
By CR Score, the highest-ranked solar installer in Union Gap, WA is Campbell & Company with a CR Score of 62/100. It has 4.9★ from 2,776 Google reviews. It is open 24/7. SolShine Solar Panel Cleaning (#2) and Yakima Window Washing (#3) follow. We ranked 6 solar installers on ten factors, last updated October 22, 2026.
How many solar installers are there in Union Gap?
ContractorsRanked ranks 6 solar installers serving Union Gap, WA. 2 of them are based in Union Gap; the rest serve it from nearby towns. Counts are as of October 2026.
Which solar installers in Union Gap are open 24/7?
1 ranked solar installer in Union Gap posts 24/7 hours. The highest-ranked is Campbell & Company (#1). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which solar installers in Union Gap work on weekends?
3 of 6 ranked solar installers post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Campbell & Company (#1), SolShine Solar Panel Cleaning (#2) and Yakima Window Washing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does solar panel installation cost in Union Gap?
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 Washington. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Union Gap solar installers have?
The median Google rating among 6 rated solar installers in Union Gap is 5.0★, with a median of 28 reviews. Campbell & Company has the most, 2,776 reviews, and ranks #1. 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 Union Gap count in this ranking?
Yes, if they are within 40 mi of the Union Gap 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 Union Gap
- October 2026: CR Scores recalculated for 6 solar installers serving Union Gap.
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