63/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 2,565 Google reviews, listed on Google as “Pest control service”.
Best Pest Control Companies in Chelsea, MA (2026)
187 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Chelsea: Clancy Brothers Pest Control, CR Score 63/100; 5.0★ from 2,565 Google reviews; open Saturdays until 2 PM.
- 2
Best for emergencies (open 24/7): Terminix, posts 24/7 hours; ranked #2 of 187.
- 22
Most-reviewed: Moxie Pest Control, 1,706 Google reviews at 4.7★, the most of 187 ranked after Clancy Brothers Pest Control; ranked #22.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
187 Chelsea pest control companies are ranked here by CR Score, from ten published factors. 43 are open 24/7, 136 open Saturdays and 74 open Sundays, based on posted hours. The median Google rating is 4.9★ across 187 rated businesses.
Top 10 pest control companies in Chelsea at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Clancy Brothers Pest Control | 63 | 5.0★ (2,565) | Quincy, 10 mi away | Sat | Overall |
| 2 | Terminix | 63 | 4.6★ (1,110) | Woburn, 9 mi away | 24/7 | Emergencies |
| 3 | Critter Control of Greater Boston | 63 | 4.9★ (334) | Waltham, 8 mi away | 24/7 | — |
| 4 | Yankee Pest Control | 61 | 4.8★ (721) | Malden, 3 mi away | Sat | — |
| 5 | Catseye Pest Control - Boston, MA | 61 | 4.7★ (784) | Boston, 3 mi away | Sat | — |
| 6 | Ultra Safe Pest Management | 61 | 4.5★ (156) | Boston, 3 mi away | 24/7 | — |
| 7 | B & B Pest Control | 61 | 4.7★ (417) | Lynn, 7 mi away | Sat · Sun · Evenings | — |
| 8 | Mosquito Squad of North Shore | 60 | 4.9★ (1,186) | Haverhill, 19 mi away | Sat · Sun · Evenings | — |
| 9 | Johnny B's Pest Control | 60 | 5.0★ (82) | Boston, 4 mi away | Sat · Sun · Evenings | — |
| 10 | Boston Best Pest Control | 60 | 4.8★ (55) | Saugus, 6 mi away | 24/7 | — |
The 187 best pest control companies in Chelsea, ranked
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.
#2 Terminix
Based in Woburn, 9 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.6★ from 1,110 Google reviews, listed on Google as “Pest control service”.
Based in Waltham, 8 mi away
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 334 Google reviews, listed on Google as “Pest control service”.
Based in Malden, 3 mi away
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 721 Google reviews, listed on Google as “Pest control service”.
Based in Boston, 3 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 784 Google reviews, listed on Google as “Pest control service”.
Based in Boston, 3 mi away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.5★ from 156 Google reviews, listed on Google as “Pest control service”.
Based in Lynn, 7 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ from 417 Google reviews, listed on Google as “Pest control service”.
Based in Haverhill, 19 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 1,186 Google reviews, listed on Google as “Pest control service”.
Based in Boston, 4 mi away
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 82 Google reviews, listed on Google as “Pest control service”.
Based in Saugus, 6 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.8★ from 55 Google reviews, listed on Google as “Pest control service”.
#11 A1 Exterminators
Based in Lynn, 6 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.7★ from 603 Google reviews, listed on Google as “Pest control service”.
Based in Boston, 1 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Pest control service”.
Based in Boston, 4 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Pest control service”.
Based in Cambridge, 3 mi away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 56 Google reviews, listed on Google as “Pest control service”.
Based in Peabody, 12 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 447 Google reviews, listed on Google as “Pest control service”.
Based in North Andover, 19 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 338 Google reviews, listed on Google as “Pest control service”.
Based in Weymouth, 12 mi away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 194 Google reviews, listed on Google as “Pest control service”.
#18 F&W Pest Control
Based in Framingham, 21 mi away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 550 Google reviews, listed on Google as “Pest control service”.
Based in Woburn, 11 mi away
59/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.7★ from 769 Google reviews, listed on Google as “Pest control service”.
Based in Malden, 10 mi away
59/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Pest control service”.
Based in Ashland, 23 mi away
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 839 Google reviews, listed on Google as “Pest control service”.
Based in Canton, 17 mi away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.7★ from 1,706 Google reviews, listed on Google as “Pest control service”.
Based in Winthrop, 4 mi away
58/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 74 Google reviews, listed on Google as “Pest control service”.
Based in Boston, 15 mi away
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 94 Google reviews, listed on Google as “Pest control service”.
Based in Cambridge, 6 mi away
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 121 Google reviews, listed on Google as “Pest control service”.
Pest control companies ranked #26 to #50
#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 187 ranked pest control companies here; the rest are on their profiles.
Also serving Chelsea
20 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 |
|---|---|---|
| All Star Pest Control | 5.0★ (2) | 19 mi |
| Boston Pest Control Services | 5.0★ (2) | 4 mi |
| Boz Pest Control | 5.0★ (2) | 7 mi |
| CCC Air duct & Dryer vent cleaning and Pest control Service of Dedham MA | 5.0★ (2) | 13 mi |
| Dragonfly Tree & Shrub Care | 5.0★ (2) | 18 mi |
| Eako Pest Control | 3.0★ (2) | 21 mi |
| Eco Friendly Pest Management in Cambridge.. | 5.0★ (2) | 4 mi |
| Essex Pest Control | 5.0★ (2) | 22 mi |
| Expert Pest Control | 4.5★ (2) | 17 mi |
| Hustlers Pest Control | 5.0★ (2) | 23 mi |
| JB Pest | In Chelsea | |
| Local Pest Control Services in Lynn | 5.0★ (1) | 7 mi |
| Master miceproofing Inc. | 5.0★ (2) | 6 mi |
| No Swat Organic Mosquito & Tick Control | 5.0★ (2) | 24 mi |
| Organic Exterminator in Lowell | 5.0★ (2) | 23 mi |
| PestGuard | 5.0★ (2) | 3 mi |
| Secured Environments LLC | 1.0★ (2) | 5 mi |
| Sniff K9s | 5.0★ (1) | 3 mi |
| The Home Depot | 4.2★ (1,451) | In Chelsea |
| Ultra Safe Pest Management | 4.5★ (2) | 6 mi |
How we ranked Chelsea pest control companies
We scored 187 Chelsea 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 2, 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 Chelsea 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 Chelsea: frequently asked questions
Who is the best pest control company in Chelsea?
By CR Score, the highest-ranked pest control company in Chelsea, MA is Clancy Brothers Pest Control with a CR Score of 63/100. It has 5.0★ from 2,565 Google reviews. It is open Saturdays until 2 PM. Terminix (#2) and Critter Control of Greater Boston (#3) follow. We ranked 187 pest control companies on ten factors, last updated November 2, 2026.
How many pest control companies are there in Chelsea?
ContractorsRanked ranks 187 pest control companies serving Chelsea, MA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which pest control companies in Chelsea are open 24/7?
43 ranked pest control companies in Chelsea post 24/7 hours. The highest-ranked are Terminix (#2), Critter Control of Greater Boston (#3) and Ultra Safe Pest Management (#6). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in Chelsea work on weekends?
136 of 187 ranked pest control companies post Saturday hours and 74 post Sunday hours. The highest-ranked open Saturdays are Clancy Brothers Pest Control (#1), Terminix (#2) and Critter Control of Greater Boston (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Chelsea pest control companies have?
The median Google rating among 187 rated pest control companies in Chelsea is 4.9★, with a median of 36 reviews. Clancy Brothers Pest Control has the most, 2,565 reviews, and ranks #1. 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 Chelsea count in this ranking?
Yes, if they are within 25 mi of the Chelsea 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 Chelsea
- November 2026: CR Scores recalculated for 187 pest control companies serving Chelsea.
- November 2026: 2 duplicate listings merged.
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