For HVAC Contractors

Win Back Past
Service Customers

Seasonal maintenance postcards land right before peak demand. Then PostKnock tells your team exactly who to call and what to say—so you book jobs before the rush.

46%
Home services phone calls
that convert1
117K
HVAC contractors
in the US
2x/yr
Campaigns recycle
spring + fall

Your Past Customers Need You—They Just Forgot

HVAC is moment-of-need. Your past customers won't think about maintenance until something breaks. A well-timed postcard + call right before the season hits converts because you're solving a problem they haven't thought about yet.

The Problem

  • × Customers don't schedule maintenance proactively
  • × Digital ads compete with every contractor in the area
  • × Postcards without a follow-up call get tossed
  • × No system connects mail to a follow-up call

The Solution

  • ✓ Postcard with seasonal urgency + priority scheduling offer
  • ✓ Call follow-up: "We're booking up fast, want to lock in your spot"
  • ✓ Equipment-age targeting: "Your unit was serviced in 2022..."
  • ✓ Timed to deploy late Feb/Mar (AC) and late Sep/Oct (heating)

Pre-Built HVAC Playbooks

Three campaign types. All pre-configured with timing, scripts, and postcard copy direction.

Seasonal Maintenance Special (2 waves, 3–4 weeks)

W1

Launch — Postcard

Seasonal urgency. Tune-up special + priority scheduling offer. Deploy late Feb/Mar for AC; late Sep/Oct for heating.

W2

Week 2 — Call

"We're booking up fast, want to lock in your spot?" Second postcard only if no contact.

Win-Back Campaign (3 waves, 8 weeks)

W1

Week 1 — Postcard

Equipment age + failure risk framing. "Your system was serviced in 2022—units over 3 years without maintenance have significantly higher failure rates." Priority scheduling offer.

W2

Week 2–3 — Call

"We noticed it's been a while since we serviced your unit. Want to get ahead of any issues before the season hits?" Pre-loaded script with equipment history notes.

W3

Week 5–6 — Second Postcard + Call

Different design with cost-of-breakdown framing. "Emergency repairs average $1,200—a tune-up is $89." Final call attempt for non-responders.

W8

Week 7–8 — Final Postcard

"Last chance before peak season" urgency. Limited-time discount. Non-responders rest 90 days, then recycle next season.

HVAC is moment-of-need—timing beats volume. Lists recycle spring + fall.

How It Works

1

Pick an HVAC Playbook

Choose "Spring Maintenance," "Fall Maintenance," or "Win-Back Campaign." Timing, scripts, and postcard direction are pre-configured.

2

Upload Your Customer List

Export past service customers from your CRM as CSV. Include last service date and equipment type for targeted messaging.

3

Launch Before the Season

Postcards mail via USPS. Your call queue populates a few days after delivery. Time it right and customers book before the rush.

4

Your Team Works the Queue

Pre-loaded scripts. Log outcomes. Warm leads get priority. The sequence runs itself, Mon–Sat.

Simple, Transparent Pricing

14-day free trial. No charge until you launch your first campaign.

Starter

$49/mo

2 campaigns · 500 contacts · From $0.79/piece

Most Popular

Growth

$149/mo

Unlimited campaigns · 5,000 contacts · From $0.69/piece

Custom

Let's Talk

Custom limits · Volume pricing ·

Per-piece pricing includes printing + USPS First-Class postage. No hidden fees.

Ready to Turn Your Office Into a Follow-Up Machine?

Stop sending postcards and hoping. Start sending postcards and calling.

1 Invoca, Call Conversion Benchmarks Report: Home Services, 2025. Based on 60+ million analyzed phone calls.

2 ANA (Association of National Advertisers), Response Rate Report 2023, published February 2024.