41 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Harvard: Edelman Heating, Cooling, Plumbing, Electric & Solar, CR Score 59/100; 4.8★ from 396 Google reviews; open 24/7.
Best for emergencies (open 24/7): Illinois Solar Power, posts 24/7 hours; ranked #15 of 41.
Most-reviewed: Burlington Fireplace & Solar, 1,754 Google reviews at 5.0★, the most of 41 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
41 Harvard solar installers are ranked here by CR Score, from ten published factors. 4 are open 24/7, 26 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.8★ across 41 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Edelman Heating, Cooling, Plumbing, Electric & Solar | 59 | 4.8★ (396) | Elkhorn, 17 mi away | 24/7 | Overall |
| 2 | Burlington Fireplace & Solar | 58 | 5.0★ (1,754) | Burlington, 25 mi away | Sat | Most reviews |
| 3 | Technique Tinting | 57 | 4.8★ (45) | Crystal Lake, 20 mi away | Sat · Sun · Evenings | — |
| 4 | Midwest Solutions Inc | 57 | 4.9★ (151) | Antioch, 27 mi away | Sat · Evenings | — |
| 5 | Greenlink Energy Solutions | 56 | 4.9★ (203) | Rockford, 24 mi away | — | — |
| 6 | Tron Solar | 56 | 4.8★ (989) | Vernon Hills, 37 mi away | — | — |
| 7 | Advanced Power USA | 55 | 5.0★ (17) | Marengo, 12 mi away | Sat · Evenings | — |
| 8 | Smart Sky Solar | 54 | 4.9★ (46) | Schaumburg, 37 mi away | Sat · Sun · Evenings | — |
| 9 | Ilumen Solar | 53 | 4.9★ (78) | Crystal Lake, 27 mi away | Evenings | — |
| 10 | Certasun | 53 | 4.8★ (306) | Buffalo Grove, 38 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 in Harvard
Based in Elkhorn, 17 mi away
Ranked #1 because of its Google rating and review volume: 4.8★ from 396 Google reviews.
Based in Burlington, 25 mi away
Ranked #2 because of its Google rating and review volume: 5.0★ from 1,754 Google reviews, the most in Harvard.
Based in Crystal Lake, 20 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 45 Google reviews, listed on Google as “Solar energy company”.
Based in Antioch, 27 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 151 Google reviews, listed on Google as “Solar energy company”.
Based in Rockford, 24 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 203 Google reviews, listed on Google as “Solar energy company”.
Based in Vernon Hills, 37 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 989 Google reviews, listed on Google as “Solar energy company”.
Based in Marengo, 12 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Solar energy company”.
Based in Schaumburg, 37 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “Solar energy company”.
Based in Crystal Lake, 27 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Solar energy company”.
Based in Buffalo Grove, 38 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 306 Google reviews, listed on Google as “Solar energy company”.
Based in Loves Park, 36 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Solar energy company”.
Based in Rockford, 25 mi away
Ranked #12 because of its Google rating and trade focus: 4.6★ from 104 Google reviews, listed on Google as “Solar energy company”.
Based in Vernon Hills, 36 mi away
Ranked #13 because of its Google rating and trade focus: 4.1★ from 451 Google reviews, listed on Google as “Solar energy company”.
Based in Gurnee, 33 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Solar energy system service”.
Based in Fox Lake, 39 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Solar energy company”.
Based in Fox Lake, 18 mi away
Ranked #16 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Solar energy company”.
Based in Rockford, 21 mi away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 103 Google reviews, listed on Google as “Contractor”.
Based in Libertyville, 36 mi away
Ranked #18 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Solar energy company”.
Based in Rolling Meadows, 39 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 99 Google reviews, listed on Google as “Solar energy company”.
Based in Barrington, 31 mi away
Ranked #20 because of its Google rating and review volume: 4.9★ from 259 Google reviews.
Based in Roscoe, 20 mi away
Ranked #21 because of its Google rating and review volume: 4.8★ from 135 Google reviews.
Based in Idabel, 19 mi away
Ranked #22 because of its Google rating and review volume: 4.7★ from 56 Google reviews.
Based in Beloit, 25 mi away
Ranked #23 because of its Google rating and review volume: 4.4★ from 47 Google reviews.
Based in Elgin, 29 mi away
Ranked #24 because of its Google rating and review volume: 4.8★ from 342 Google reviews.
Based in Rockford, 27 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Solar energy company”.
#1 to #25 are shown in full above. Here are #26 to #41, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | My Window Washing and Gutter Cleaning | 50 | 4.9★ (112) | 27 mi |
| 27 | Fibonacci Energy LLC | 49 | 5.0★ (9) | 27 mi |
| 28 | My Window Washing | 49 | 4.9★ (219) | 37 mi |
| 29 | RENAISSANCE Historic Exteriors | 49 | 4.8★ (50) | 19 mi |
| 30 | Freedom Forever | 49 | 4.0★ (239) | 38 mi |
| 31 | Global Adjusting & Construction | 48 | 4.9★ (178) | 40 mi |
| 32 | Phoenix Exteriors Roofing & Solar | 48 | 4.7★ (178) | 38 mi |
| 33 | Sunrise Solar Solutions | 48 | 4.5★ (16) | 39 mi |
| 34 | Property Refresh Power Washing and Gutter Cleaning | 48 | 4.9★ (102) | 39 mi |
| 35 | Distinct Exteriors & Roofer in Janesville | 48 | 4.9★ (35) | 27 mi |
| 36 | UV Exteriors | 46 | 4.9★ (54) | 39 mi |
| 37 | ION SOLAR ILLINOIS | 46 | 3.0★ (17) | 37 mi |
| 38 | Nelrock Contracting | 45 | 5.0★ (18) | 24 mi |
| 39 | Sterling Exteriors, Inc. | 45 | 4.2★ (51) | 32 mi |
| 40 | Solaris Roofing | 43 | 5.0★ (6) | 39 mi |
| 41 | Revenue Task Force | 41 | 5.0★ (5) | 39 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 |
|---|---|---|
| Blue Ribbon Electrical Inc | 4.2★ (5) | In Harvard |
| bolt electrical | 28 mi | |
| Caliber Energy LLC | 1.0★ (1) | 29 mi |
| Global SunPower | 1.0★ (1) | 40 mi |
| Green Flow Energy LLC | 29 mi | |
| J. Sanchez Landscaping | 5.0★ (17) | In Harvard |
| NXT Solar Solutions | 5.0★ (1) | 39 mi |
| Poltech Electric Inc. | 5.0★ (1) | 34 mi |
| Property Refresh Power Washing and Window Cleaning | 31 mi | |
| Real Solar Incentives | 5.0★ (1) | 32 mi |
| Shared Solar Advisors | 19 mi | |
| Solar Connections International | 5.0★ (1) | 20 mi |
| Solar SmartRoof by Powur | 5.0★ (2) | 30 mi |
| Solarland USA | 27 mi | |
| SUNBURST | 28 mi | |
| Sunrun Solar Twins | 26 mi | |
| Supreme Construction/Solar | 21 mi | |
| USA Clean Solar | 1.0★ (1) | 33 mi |
| Versun Solar | 29 mi | |
| Xceptional Exteriors LLC | 5.0★ (1) | 28 mi |
Typical prices in USD, adjusted for Illinois with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $26,020 | $29,430 | $32,010 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.95 East North Central factor (2025 Cost vs. Value Report) | October 2026 |
We scored 41 Harvard 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 Harvard 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 |