191 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Longmont: Independent Power, CR Score 62/100; 4.9★ from 373 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Elite Roofing & Solar, posts 24/7 hours; ranked #5 of 191.
Most-reviewed: ION Solar - Colorado, 1,652 Google reviews at 4.0★, the most of 191 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
191 Longmont solar installers are ranked here by CR Score, from ten published factors. 15 are open 24/7, 98 open Saturdays and 36 open Sundays, based on posted hours. The median Google rating is 4.9★ across 191 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Independent Power | 62 | 4.9★ (373) | Boulder, 12 mi away | Sat · Sun · Evenings | Overall |
| 2 | Dodge Key Replacement | 62 | 4.8★ (134) | Longmont | Sat · Sun | — |
| 3 | ARE Solar | 59 | 5.0★ (67) | Erie, 10 mi away | Sat · Sun | — |
| 4 | Namaste Solar | 58 | 4.8★ (312) | Boulder, 8 mi away | — | — |
| 5 | Elite Roofing & Solar | 58 | 4.9★ (627) | Denver, 29 mi away | 24/7 | Emergencies |
| 6 | Solar RNR | 58 | 5.0★ (248) | Denver, 27 mi away | Sat | — |
| 7 | Progreen Solar | 58 | 4.7★ (45) | Longmont | Sat | — |
| 8 | Red Rock Roofing | 57 | 4.9★ (528) | Firestone, 7 mi away | Sat · Sun · Evenings | — |
| 9 | Raven Solar Services LLC. | 57 | 4.8★ (70) | Northglenn, 19 mi away | Sat · Sun | — |
| 10 | Roper Roofing & Solar | 57 | 4.9★ (266) | Wheat Ridge, 26 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 373 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longmont
Ranked #2 because of its Google rating and trade focus: 4.8★ from 134 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Erie, 10 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boulder, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 312 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 29 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 627 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 27 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 248 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longmont
Ranked #7 because of its Google rating and trade focus: 4.7★ from 45 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Firestone, 7 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 528 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Northglenn, 19 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 70 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wheat Ridge, 26 mi away
Ranked #10 because of its Google rating and review volume: 4.9★ from 266 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 33 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 138 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boulder, 15 mi away
Ranked #12 because of its Google rating and review volume: 4.9★ from 329 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longmont
Ranked #13 because of its Google rating and trade focus: 4.9★ from 122 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Broomfield, 19 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 457 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 30 mi away
Ranked #15 because of its Google rating and review volume: 4.0★ from 1,652 Google reviews, the most in Longmont.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Golden, 30 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 171 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 25 mi away
Ranked #17 because of its Google rating and review volume: 4.9★ from 565 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brighton, 25 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 30 mi away
Ranked #19 because of its Google rating and trade focus: 4.1★ from 773 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Erie, 8 mi away
Ranked #20 because of its Google rating and review volume: 4.9★ from 118 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fort Collins, 12 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Solar panel maintenance service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Denver, 32 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 29 mi away
Ranked #23 because of its Google rating and trade focus: 4.2★ from 952 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 28 mi away
Ranked #24 because of its Google rating and trade focus: 4.7★ from 545 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longmont
Ranked #25 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Solar energy company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#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 191 ranked solar installers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Namaste Solar | 55 | 4.9★ (299) | 30 mi |
| 27 | Stone Creek Roofing & Solar | 55 | 4.9★ (155) | In Longmont |
| 28 | Lemons Heating & Cooling | 55 | 4.9★ (298) | 25 mi |
| 29 | Seed Solar Denver | 55 | 4.4★ (60) | 35 mi |
| 30 | Energy Advantage Roofing & Solar | 55 | 4.7★ (279) | 24 mi |
| 31 | Glyde Solar | 55 | 4.2★ (329) | 21 mi |
| 32 | Vanguard Solar Services | 55 | 5.0★ (84) | 32 mi |
| 33 | Solar Wave | 55 | 5.0★ (59) | 29 mi |
| 34 | Jack's Solar Garden | 55 | 5.0★ (8) | In Longmont |
| 35 | Upslope Solar | 55 | 5.0★ (57) | 29 mi |
| 36 | LUXRAY ELECTRIC & SOLAR | 55 | 5.0★ (41) | 2 mi |
| 37 | Off Grid Designs | 55 | 5.0★ (15) | 13 mi |
| 38 | Green Collar Crew | 54 | 5.0★ (24) | 18 mi |
| 39 | Solar-Estimate.org | 54 | 4.6★ (406) | 29 mi |
| 40 | Colorado Energy Experts | 54 | 4.8★ (78) | 30 mi |
| 41 | Apollo Solar Energy | 54 | 4.9★ (137) | 27 mi |
| 42 | Interstate Electric and Solar | 54 | 4.9★ (161) | 39 mi |
| 43 | Renewable Energy Advisors | 54 | 5.0★ (22) | 29 mi |
| 44 | Empire Solar Group, LLC | 54 | 4.4★ (136) | 29 mi |
| 45 | Max-Terra Solar Solutions | 54 | 5.0★ (38) | 16 mi |
| 46 | Solar Pathways Energy & Electrical | 53 | 5.0★ (33) | 25 mi |
| 47 | Colorado Solar Co | 53 | 4.9★ (203) | 38 mi |
| 48 | Sopris Solar | 53 | 4.6★ (60) | 29 mi |
| 49 | Our World Energy, LLC | 53 | 4.4★ (186) | 24 mi |
| 50 | Rebel Services LLC | 53 | 4.9★ (21) | 12 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 |
|---|---|---|
| A. Adkisson Electric | 5.0★ (2) | 17 mi |
| Advanced Electric Solutions Corp | 5.0★ (2) | 33 mi |
| Backwards Electric Meter | In Longmont | |
| Better Way Electric & Data Comm Inc. | 4.6★ (23) | In Longmont |
| Brilliance Electrical Services | 3.0★ (2) | In Longmont |
| Bulldog Roofing | 4.9★ (572) | In Longmont |
| HG Solar | 1.0★ (2) | 32 mi |
| Hyperion Solar Cleaning | 5.0★ (2) | In Longmont |
| Independent Power - Fort Collins | 5.0★ (2) | 26 mi |
| Juwi Solar Inc | 5.0★ (2) | 13 mi |
| Mallurd Solar | In Longmont | |
| New Energy Structures Company | 5.0★ (1) | In Longmont |
| Next Step Communications, LLC | 5.0★ (231) | In Longmont |
| PolarPak Foam | 4.3★ (10) | In Longmont |
| RV Solar Connection, llc | 5.0★ (2) | 21 mi |
| Skyview Solar | 1.0★ (2) | 29 mi |
| Sol Exteriors | In Longmont | |
| SolarHouse BannockCo | 5.0★ (2) | 31 mi |
| Sugar Mill Village by Tri Pointe Homes | 4.5★ (2) | In Longmont |
| Unlimited Solutions | 5.0★ (30) | In Longmont |
Typical prices in USD, adjusted for Colorado with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $25,190 | $28,490 | $30,990 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.92 Mountain factor (2025 Cost vs. Value Report) | October 2026 |
We scored 191 Longmont 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 Longmont 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 |