13 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Marion: ECG Solar, CR Score 60/100; 4.9★ from 220 Google reviews.
Best for emergencies (open 24/7): Heartland Roofing, Siding, and Solar, posts 24/7 hours; ranked #5 of 13.
Most-reviewed: SolQ, 412 Google reviews at 4.8★, the most of 13 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
13 Marion solar installers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 3 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.8★ across 13 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ECG Solar | 60 | 4.9★ (220) | Anamosa, 14 mi away | — | Overall |
| 2 | True Solar | 59 | 5.0★ (135) | Coralville, 24 mi away | Sat | — |
| 3 | ECG Solar Cedar Rapids | 58 | 4.9★ (42) | Cedar Rapids, 1 mi away | — | — |
| 4 | SolQ | 57 | 4.8★ (412) | Iowa City, 34 mi away | — | Most reviews |
| 5 | Heartland Roofing, Siding, and Solar | 56 | 4.8★ (37) | North Liberty, 21 mi away | 24/7 | Emergencies |
| 6 | Eagle Point Solar | 55 | 4.8★ (23) | Cedar Rapids, 11 mi away | — | — |
| 7 | Source Solar | Solar & Roofing Contractor | 53 | 4.3★ (23) | Iowa City, 27 mi away | Sat | — |
| 8 | BL Electric | 51 | 5.0★ (35) | Cedar Rapids, 2 mi away | — | — |
| 9 | ECG Solar Iowa City | 51 | 4.8★ (10) | Iowa City, 26 mi away | — | — |
| 10 | Acme Electric Company | 50 | 4.7★ (43) | Cedar Rapids, 11 mi away | — | — |
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: 4.9★ from 220 Google reviews, listed on Google as “Solar energy company”.
Based in Coralville, 24 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 135 Google reviews, listed on Google as “Solar energy company”.
Based in Cedar Rapids, 1 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 42 Google reviews, listed on Google as “Solar energy company”.
Based in Iowa City, 34 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 412 Google reviews, the most in Marion.
Based in North Liberty, 21 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “Roofing contractor”.
Based in Cedar Rapids, 11 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based in Iowa City, 27 mi away
Ranked #7 because of its Google rating and trade focus: 4.3★ from 23 Google reviews, listed on Google as “Solar energy company”.
Based in Cedar Rapids, 2 mi away
Ranked #8 because of its Google rating and review volume: 5.0★ from 35 Google reviews.
Based in Iowa City, 26 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based in Cedar Rapids, 11 mi away
Ranked #10 because of its Google rating and review volume: 4.7★ from 43 Google reviews.
Based in Cedar Rapids, 7 mi away
Ranked #11 because of its Google rating and review volume: 4.2★ from 41 Google reviews.
Based in Marion
Ranked #12 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Siding contractor”.
Based in Cedar Rapids, 17 mi away
Ranked #13 because of its Google rating and review volume: 4.1★ from 23 Google reviews.
Typical prices in USD, adjusted for Iowa with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $26,570 | $30,060 | $32,700 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.97 West North Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 13 Marion 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 Marion 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 |