66/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 902 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Best Pest Control Companies in Janesville, WI (2026)
18 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Janesville: Greenix Pest Control, CR Score 66/100; 4.9★ from 902 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): Best Defense Pest Solutions, posts 24/7 hours; ranked #2 of 18.
- 9
Most-reviewed: Aptive Pest Control, 1,242 Google reviews at 4.5★, the most of 18 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
18 Janesville pest control companies are ranked here by CR Score, from ten published factors. 3 are open 24/7, 10 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.9★ across 18 rated businesses.
Top 10 pest control companies in Janesville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Greenix Pest Control | 66 | 4.9★ (902) | Janesville | Sat · Sun · Evenings | Overall |
| 2 | Best Defense Pest Solutions | 62 | 4.9★ (66) | Janesville | 24/7 | Emergencies |
| 3 | Bohmz Pest Services | 61 | 4.3★ (86) | Janesville | 24/7 | — |
| 4 | Premier Pest Elimination | 60 | 4.9★ (253) | Janesville | — | — |
| 5 | Mosquito Hero | 60 | 5.0★ (162) | Janesville | — | — |
| 6 | Mosquito Squad Plus of Rockford | 59 | 4.9★ (216) | Loves Park, 22 mi away | 24/7 | — |
| 7 | R&B Pest Control LLC | 59 | 4.6★ (33) | Janesville | Sat · Sun · Evenings | — |
| 8 | Mosquito Squad of South Central Wisconsin | 58 | 4.9★ (64) | Madison, 12 mi away | Sat · Sun · Evenings | — |
| 9 | Aptive Pest Control | 58 | 4.5★ (1,242) | Stoughton, 20 mi away | Sat · Evenings | Most reviews |
| 10 | Blue Pest Control & Home Services LLC | 58 | 4.7★ (47) | Janesville | Sat | — |
The 18 best pest control companies in Janesville, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Based in Janesville
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 66 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.3★ from 86 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 253 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 162 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Loves Park, 22 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 216 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.6★ from 33 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Madison, 12 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 64 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stoughton, 20 mi away
58/100CR ScoreRanked #9 because of its Google rating and review volume: 4.5★ from 1,242 Google reviews, the most in Janesville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 47 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rockford, 24 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 201 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
54/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Pest control service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Milton, 5 mi away
53/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Janesville
50/100CR ScoreRanked #14 because of its Google rating and review volume: 4.3★ from 156 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Madison, 12 mi away
50/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oregon, 25 mi away
48/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Machesney Park, 22 mi away
45/100CR ScoreRanked #17 because of its Google rating and review volume: 4.5★ from 126 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fitchburg, 22 mi away
45/100CR ScoreRanked #18 because of its Google rating and review volume: 4.4★ from 155 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Also serving Janesville
1 more pest control companies 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 |
|---|---|---|
| Pro-Tech Environmental Inc. | 5.0★ (1) | 17 mi |
How we ranked Janesville pest control companies
We scored 18 Janesville pest control companies 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 November 3, 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 Janesville 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 |
Pest control companies in Janesville: frequently asked questions
Who is the best pest control company in Janesville?
By CR Score, the highest-ranked pest control company in Janesville, WI is Greenix Pest Control with a CR Score of 66/100. It has 4.9★ from 902 Google reviews. It is open 7 days a week. Best Defense Pest Solutions (#2) and Bohmz Pest Services (#3) follow. We ranked 18 pest control companies on ten factors, last updated November 3, 2026.
How many pest control companies are there in Janesville?
ContractorsRanked ranks 18 pest control companies serving Janesville, WI. 9 of them are based in Janesville; the rest serve it from nearby towns. Another 1 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which pest control companies in Janesville are open 24/7?
3 ranked pest control companies in Janesville post 24/7 hours. The highest-ranked are Best Defense Pest Solutions (#2), Bohmz Pest Services (#3) and Mosquito Squad Plus of Rockford (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in Janesville work on weekends?
10 of 18 ranked pest control companies post Saturday hours and 7 post Sunday hours. The highest-ranked open Saturdays are Greenix Pest Control (#1), Best Defense Pest Solutions (#2) and Bohmz Pest Services (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Janesville pest control companies have?
The median Google rating among 18 rated pest control companies in Janesville is 4.9★, with a median of 106 reviews. Aptive Pest Control has the most, 1,242 reviews, and ranks #9. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank pest control companies?
Each pest control company 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 pest control companies outside Janesville count in this ranking?
Yes, if they are within 25 mi of the Janesville city center, our service radius for pest control companies. 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.
Can pest control companies pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Janesville
- November 2026: CR Scores recalculated for 18 pest control companies serving Janesville.
More pest control companies and Janesville pages
Pest control companies near Janesville
- Pest control companies in Beloit, WI30 ranked
- Pest control companies in Whitewater, WI14 ranked
- Pest control companies in Stoughton, WI46 ranked
- Pest control companies in Fort Atkinson, WI20 ranked
- Pest control companies in Oregon, WI47 ranked
- Pest control companies in Fitchburg, WI40 ranked
- Pest control companies in Madison, WI45 ranked
- Pest control companies in Verona, WI40 ranked
- Pest control companies in Sun Prairie, WI43 ranked
- Pest control companies in Burlington, WI43 ranked
Other trades in Janesville
- Roofers in Janesville378 ranked
- Plumbers in Janesville68 ranked
- Electricians in Janesville63 ranked
- HVAC contractors in Janesville83 ranked
- General contractors in Janesville103 ranked
- Painters in Janesville31 ranked
- Landscapers in Janesville51 ranked
- Handymen in Janesville13 ranked
- Kitchen remodelers in Janesville52 ranked
- Bathroom remodelers in Janesville55 ranked
- Flooring contractors in Janesville43 ranked
- Tile installers in Janesville8 ranked
- Concrete contractors in Janesville76 ranked
- Fence contractors in Janesville13 ranked
- Deck builders in Janesville31 ranked
- Siding contractors in Janesville219 ranked
- Window installers in Janesville173 ranked
- Gutter installers in Janesville46 ranked
- Insulation contractors in Janesville19 ranked
- Solar installers in Janesville34 ranked
- Garage door repair companies in Janesville21 ranked
- Foundation repair companies in Janesville49 ranked
- Tree services in Janesville57 ranked
- Masonry contractors in Janesville34 ranked
- Water damage restoration companies in Janesville118 ranked
- Home builders in Janesville138 ranked
- Demolition contractors in Janesville17 ranked
- Window cleaners in Janesville11 ranked
- Pressure washing companies in Janesville14 ranked
- Paving contractors in Janesville34 ranked
- Auto glass repair shops in Janesville15 ranked
- Septic service companies in Janesville18 ranked
- Excavating contractors in Janesville42 ranked
- Pool builders in Janesville41 ranked
- All contractors in Janesville