A 2-wave sequence for one job: filling your spring schedule with preventive treatments before homeowners see the first ant. Bring a spreadsheet, no CRM required.
Start FreeA spring run reaches three kinds of households, and each needs its own edit to the same card. Build the lists in this order.
People you have treated before who aren't on a plan now. Export them from your routing software (PestPac, FieldRoutes, Briostack, GorillaDesk, PestRoutes and the like) as Excel or CSV and import the file. PostKnock doesn't connect to any of them. Leave active subscribers off the list, since they are already on your schedule.
Under Contacts, Find a mailing list, pick the ZIP codes your routes cover. The count is free, you can narrow it to homeowners, and you confirm the total before your wallet is charged ($0.15 an address, less on big lists). Import your customers first: addresses you already hold are skipped and not billed. How buying by ZIP works.
Customers near their plan anniversary belong in a different playbook, Annual Service Renewal, which asks for the renewal instead of a first treatment. You'll find it with the other pest control campaigns on the pest control page.
2 waves over 2 weeks, deployed late February through April. Below is exactly what mails when, and why each wave's hook is sharper than the last.
Headline: "Bug Season Is Coming" · Offer: Spring preventive treatment at early-season rate · 60-day satisfaction guarantee.
The tone is direct and practical, with bold pricing. Name the pests you actually treat in your region (the default copy lists ants, spiders, wasps and mosquitoes) so the homeowner sees themselves in the message. The default bullets are interior and exterior coverage, licensed and insured, family-safe products and a 60-day satisfaction guarantee, so keep only what is true for your company. The phone number is the main call to action. The call script opens with "spring pest season is just around the corner, and we're scheduling preventive treatments now to get ahead of the rush," and for a hesitant homeowner offers to send a quick quote first.
Headline: "Last Call Before Bug Season" · Offer: Spring treatment + free re-treatment guarantee: ends [date].
14 days after Wave 1 to everyone still in the sequence, with a tighter deadline ("early-season pricing ends [date]") and a free re-treatment guarantee. The default bullet there is "Stay a step ahead of the first ant," which makes no cost claim. If you want to add a price comparison, use your own numbers. Postcard only, no call. After Wave 2 the contact rests for 90 days before it can be mailed again.
The playbook flags a February to April window, but seasons start at different times by region. Mississippi State University Extension, for one, says native subterranean termites begin swarming in late February in south Mississippi and early March farther north, and advises owners to confirm their termite contract is current when swarmers show up outside.2 Ask your local extension office what the calendar looks like where you work, and start the mailing about that far ahead.
Set your early-season rate and the date it ends, name the pests you treat, and check any "family-safe" or "pet-safe" wording against your product labels and your state's rules before it prints. The default bullets are placeholders for you to confirm or cut.
Import your lapsed customers, add the ZIP list if you want cold homes too, and launch. The review screen counts mailable rows, missing addresses and duplicates before anything is saved. The playbook is sized for 250 to 1,000 homes.
On Pro, wave 1 is followed by calls, paced by your calling settings. When the office books a visit, it goes into your own scheduling software, because PostKnock doesn't replace it. Free accounts mail wave 1 only.
A typical residential pest control company mails to 800–1,500 past customers and warm prospects in nearby ZIP codes for the spring push. Here's the math on a 1,000-home run:
14:1 first-year ROI. Quarterly subscribers stay for 3+ years on average, multiplying the lifetime value.
Run your own numbers in the ROI calculator.
Free to explore. You only pay when you're ready to send. 30-day money-back guarantee on your first annual plan.
Single-wave postcard campaigns · Unlimited contacts · From $1.04/piece
Everything in Free + calls, sequencing · From $0.91/piece
Per-piece pricing includes printing + USPS First-Class postage. No hidden fees.
Four starting styles, all themed for a pest control business. The offer and call follow-up stay the same, so pick the look that fits your trucks and your brand, or browse the full pest control design gallery.
Bold
Photo
Minimal
Gradient
Front Detail
Back (Address Side)
PostKnock seasonal campaigns also work for
The pest control library also has an annual service renewal playbook for customers nearing their plan anniversary and a win-back playbook for lapsed past customers.
See all pest control campaigns →The playbook flags a February to April window, and wave 2 goes out 14 days after wave 1, so start early enough that both land before the pests do. Pest seasons start at different times by region, so ask your local extension office. Mississippi State University Extension, for example, reports native subterranean termites swarming from late February in south Mississippi.
Customers who lapsed, because they already know you. Skip active subscribers, who are on your schedule. After that, add cold homes in your service ZIP codes. Import your customer list first so a ZIP list you buy skips addresses you already hold, and doesn't bill you for them.
Name the ones you actually treat in your area. The default copy mentions ants, spiders, wasps and mosquitoes, which you can edit. Generic "pest control" copy reads like every other card, and naming a pest you don't treat only creates calls you can't sell.
PostKnock gives the person calling a list and a script. It doesn't connect to PestPac, FieldRoutes, Briostack, GorillaDesk or PestRoutes, so when the office books a visit it enters it in that software. A call needs a phone number on the contact, and the Call Queue is a Pro feature.
The default bullets include licensed, insured and family-safe products, plus a 60-day satisfaction guarantee. Keep only claims you can back up, check "family-safe" and "pet-safe" wording against your product labels, and look up your state's rules on what pest control advertising must show.
For 1,000 homes, wave 1 is $910 in 4×6 postcards on Pro ($0.91 each) or $1,040 on Free ($1.04 each), plus $150 if you buy the list in the app ($0.15 an address). Wave 2 skips anyone whose call you log as Qualified, so it can cost less. Pro is $99 a month or $799 a year.
No. Free accounts mail postcards only, and only wave 1 of a campaign sends. The Call Queue and wave 2 are on Pro. Your calling settings set how many calls go out each day, so a list of 1,000 is worked over weeks, not in an afternoon.
Stop waiting for the first ant to ring your phone. Fill your spring schedule with preventive treatments before the season starts.
Start Free1 ANA (Association of National Advertisers), Response Rate Report 2023, published February 2024.
2 Mississippi State University Extension, Protect buildings from swarming termites, checked October 2026. Swarm dates vary by species, county and year.