137 electricians ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Harvard: Adams, CR Score 89/100; 4.9★ from 1,313 Google reviews; open 24/7.
Best for emergencies (open 24/7): Woodstock Heating, Cooling & Electrical, posts 24/7 hours; ranked #2 of 137.
Most-reviewed: Black Diamond Plumbing & Mechanical Inc., 6,580 Google reviews at 4.9★, the most of 137 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
137 Harvard electricians are ranked here by CR Score, from 8 published factors. 33 are open 24/7, 69 open Saturdays and 44 open Sundays, based on posted hours. The median Google rating is 4.9★ across 137 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Adams | 89 | 4.9★ (1,313) | Elkhorn, 19 mi away | 24/7 | Overall |
| 2 | Woodstock Heating, Cooling & Electrical | 87 | 4.9★ (1,222) | Woodstock, 11 mi away | 24/7 | Emergencies |
| 3 | Double U Electric LLC | 87 | 5.0★ (269) | Elkhorn, 21 mi away | 24/7 | — |
| 4 | Black Diamond Plumbing & Mechanical Inc. | 85 | 4.9★ (6,580) | McHenry, 18 mi away | 24/7 | Most reviews |
| 5 | Duner Electrical Service | 85 | 5.0★ (78) | Lake in the Hills, 20 mi away | 24/7 | — |
| 6 | MIK ELECTRICAL SOLUTIONS | 85 | 5.0★ (113) | Cary, 23 mi away | 24/7 | — |
| 7 | Illinois State Electric, LLC | 84 | 5.0★ (66) | Crystal Lake, 23 mi away | 24/7 | — |
| 8 | AL EXCELLENCE ELECTRIC LLC | 83 | 5.0★ (47) | Island Lake, 24 mi away | 24/7 | — |
| 9 | Birchwood Electric LLC | 83 | 4.9★ (8) | Marengo, 12 mi away | 24/7 | — |
| 10 | GSHA Services, LTD | 83 | 4.9★ (747) | Woodstock, 13 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and availability: 4.9★ from 1,313 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Woodstock, 11 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 1,222 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Elkhorn, 21 mi away
Ranked #3 because of its Google rating and availability: 5.0★ from 269 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in McHenry, 18 mi away
Ranked #4 because of its Google rating and review volume: 4.9★ from 6,580 Google reviews, the most Google reviews on this list (6,580).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lake in the Hills, 20 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 78 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cary, 23 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 113 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crystal Lake, 23 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 66 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Island Lake, 24 mi away
Ranked #8 because of its Google rating and availability: 5.0★ from 47 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Marengo, 12 mi away
Ranked #9 because of its Google rating and availability: 4.9★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Woodstock, 13 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 747 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Elkhorn, 17 mi away
Ranked #11 because of its Google rating and availability: 4.8★ from 396 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Machesney Park, 21 mi away
Ranked #12 because of its Google rating and availability: 4.7★ from 64 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Beloit, 18 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crystal Lake, 20 mi away
Ranked #14 because of its Google rating and availability: 4.8★ from 460 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fox Lake, 14 mi away
Ranked #15 because of its Google rating and availability: 4.5★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crystal Lake, 20 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 105 Google reviews, listed on Google as “Electrician”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fox Lake, 24 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 15 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Crystal Lake, 22 mi away
Ranked #18 because of its Google rating and availability: 4.8★ from 1,043 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hampshire, 23 mi away
Ranked #19 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Beloit, 25 mi away
Ranked #20 because of its Google rating and availability: 4.4★ from 47 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Harvard
Ranked #21 because of its Google rating and trade focus: 3.7★ from 6 Google reviews, listed on Google as “Electrician”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Willowdale, 15 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Electrician”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Roscoe, 22 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Electrician”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Lake in the Hills, 23 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 29 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Idabel, 19 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 56 Google reviews, listed on Google as “Electrician”.
Based on 6 of 8 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 137 ranked electricians here; the rest are on their profiles.
20 more electricians within 25 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 |
|---|---|---|
| Asset Maintenance Services, L.L.C. | 5.0★ (1) | In Harvard |
| Baella Electric Services | 5.0★ (2) | 20 mi |
| Beaver Electric | 5.0★ (2) | 23 mi |
| Beyond Epic Electric | 5.0★ (2) | 24 mi |
| Carey Electrical Contractors | 3.4★ (5) | 19 mi |
| DEG Electric Services | 5.0★ (2) | 23 mi |
| Divergent Alliance - Emergency Storm Response, Supply & Service Utility Partner | 5.0★ (66) | 23 mi |
| Engel Electric | 5.0★ (3) | 18 mi |
| Epic Inc | 5.0★ (1) | 9 mi |
| Finn Electric | 3.2★ (6) | 21 mi |
| Forest City Services | 4.2★ (5) | 22 mi |
| HANDYMAN WE DO IT ALL INC. | 3.7★ (6) | 11 mi |
| Klimczak Improvements, Inc. | 4.5★ (6) | In Harvard |
| KOR Electric Company - Quality Electrical Contractor Services, Electrical Panel Upgrade, and 24 Hour Residential Electrician | 5.0★ (2) | 19 mi |
| Lit n Glow Electric, Inc | 3.0★ (2) | 16 mi |
| Midwest Security Inc | 5.0★ (2) | 22 mi |
| Munks Electrical Construction | 5.0★ (1) | 8 mi |
| Nexus Electrical | 4.0★ (12) | 19 mi |
| NLS, Ltd. | 3.0★ (2) | 19 mi |
| River Valley Electric LLC | 5.0★ (2) | 25 mi |
National price ranges in USD, not adjusted for Harvard. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Electrical panel upgrade | $518 | $1,347 | $2,193 | Per panel, installed; typical range of customer-reported jobs. US national range | October 2026 |
We scored 137 Harvard electricians on 8 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. Unknown factors are left out of the score, 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 | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |