The Best Pest Control Services in Castle Rock, CO
We graded 4 companies on seven things customers actually report: satisfaction, reliability, workmanship, value, momentum, track record and how owners handle complaints.
From 351,287 Google reviews of 400 top-rated pest control services nationwide; 4 of them in Castle Rock, CO. Updated November 13, 2026.
Find the right company for your job
Pick the job — we re-rank companies by how customers rated that exact job.
Best pest control services in Castle Rock for spider extermination
Clear ✕Job match = this company’s ★ on reviews Google tagged “Spider extermination” (shrunk toward the category average when there are few), how many such jobs it has done, and its overall Experts Score.
What customers said about spider extermination
We have been using them for a couple years, and they have to be the best pest control in Castle Rock! We had tried others before, and it never worked out. We used to have so many wolf spiders around our house, and in our garage. And we have seen a drastic decline because of Omnis. We still have them around from time…
Used this company at our house! Super satisfied the people were friendly and took care of business!!
Andres was fantastic, very educational and was quick for spraying our whole exterior & interior basement. He also took the time to find any area where the spiders and snakes may be coming in with any gaps left behind by the original builders. Great service today.
Omnis has been great! We've tried a few other services over the years and they are by far the best.
Lennie was professional, showed up right on time, explained every step of the process and provided helpful suggestions and instructions for afterwards. Thank you!!
I had a fantastic experience with Jon! He came out to my home to spray for bugs, and I was truly impressed with his knowledge, professionalism, and kindness. He took the time to explain what he was doing and made sure all my questions were answered, which really gave me confidence in the service. Jon was friendly,…
Overall ratings
Experts Score 0–100Experts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of pest control services).
| # | Company | ScoreExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. | FactorsFactor grades, in orderSatisfaction (54%): Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Reliability (24%): How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Craft & service (0%): Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Replies to reviews (7%): How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20. | ★Google star rating as shown on Google Maps. | Typical billMedian bill customers of this company reported in their reviews (needs 3+ priced reviews). |
|---|---|---|---|---|---|
| 1 | A 95How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%95+55.8Reliability 26%92+24Value 15%100+15.2Craft & service penalty99−0.1Experts Score= 95Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 4.96 | $323 | |
| 2 | A 91How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%93+54.6Reliability 26%93+24.3Value 15%100+15.2Craft & service penalty66−3.4Experts Score= 91Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AABAA– | 4.92 | — | |
| 3 | A 90How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%90+52.8Reliability 26%84+21.9Value 15%99+15.1Craft & service penalty99−0.1Experts Score= 90Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAA– | 4.92 | — | |
| 4 | A 85How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%85+46.4Reliability 24%81+19.6Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty80−2Experts Score= 85Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews. | AAAAAA | 4.84 | $147 |
What jobs cost
What customers paid, from the price Google asks reviewers to report.
| Job | Low25th percentile: 1 in 4 customers paid less than this. | TypicalMedian of the bill customers reported in their Google review (Google asks reviewers for a price range; we use the middle of each range). | High75th percentile: 1 in 4 customers paid more than this. | FairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”. |
|---|---|---|---|---|
| General pest inspection | $58 | $93 | $128 | 98% |
| Spider extermination | $76 | $111 | $166 | 98% |
| Bug & insect extermination | $61 | $96 | $136 | 98% |
| Ant extermination | $81 | $141 | $246 | 98% |
| Rodent extermination | $81 | $159 | $323 | 98% |
| Hornet & wasp extermination | $96 | $176 | $282 | 98% |
| Home inspection | $58 | $106 | $166 | 98% |
| Cockroach extermination | $76 | $139 | $246 | 98% |
| Mosquito extermination | $68 | $86 | $106 | 98% |
| Flea & mite extermination | $96 | $171 | $323 | 98% |
| Termite inspection | $79 | $161 | $323 | 98% |
| Termite extermination | $141 | $246 | $371 | 97% |
Pest Control Services in Castle Rock, CO at a glance
How the 4 pest control services we rated in Castle Rock, CO compare, and what customers praise most.
Experts Score grades
A = score 80+, F = below 20.
- Grade A4100%
- Grade B00%
- Grade C00%
- Grade D00%
- Grade F00%
Google ratings
Average stars per company.
- 4.90★ and up375%
- 4.80–4.89★125%
- 4.60–4.79★00%
- Below 4.60★00%
What customers praise
Share of Google review highlights.
- Quality55,53720%
- Professionalism68,91325%
- Responsiveness54,48220%
- Punctuality54,32120%
- Value42,02515%
Was the price fair?
All price verdicts left with reviews.
- Great price17,66327%
- Reasonable40,26962%
- Overpriced1,3902%
- Not sure5,1378%
Price verdicts by year
Share calling it great / reasonable / overpriced.
How we grade
Satisfaction (54%) — Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.
Reliability (24%) — How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.
Craft & service (penalty, up to −10) — Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.
Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.
Momentum (penalty, up to −10) — Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.
Replies to reviews (7%) — How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.