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How an HVAC Company Tripled Revenue from $400K to $1.2M in 18 Months (Without Hiring More Techs)

Mike's HVAC company was stuck at $400K for 3 years. He was working 70 hours/week and making less than his techs. Here's how we built a retention machine that tripled his revenue.

January 22, 2025
14 min read
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How an HVAC Company Tripled Revenue from $400K to $1.2M in 18 Months (Without Hiring More Techs)

Mike's HVAC company was stuck.

Same revenue for 3 years straight: $400K/year
Hours worked per week: 70+
Take-home pay: Less than his techs
Customer repeat rate: 11%

He was trapped in the service business hamster wheel:

  • Work all day installing and repairing systems
  • Spend nights doing estimates and paperwork
  • Wake up and do it again
  • Never get ahead

Sound familiar?

18 months later, here's where Mike's business is:

  • $1.2M annual revenue (+193%)
  • $240K recurring revenue (didn't exist before)
  • 68% repeat customer rate (up from 11%)
  • 30 hours/week (down from 70)
  • Customer lifetime value: $2,850 (up from $485)

We didn't hire more techs. We didn't expand to new cities. We didn't even increase prices.

We built a retention machine that turned one-time customers into lifetime clients.

Here's the playbook.


The Problem: Feast or Famine Revenue

When Mike called me, he was frustrated.

"I'm working 70-hour weeks, and I'm making less than my lead tech. What am I doing wrong?"

I asked to see his numbers:

Annual Revenue: $410,000
Breakdown:

  • New AC installations: $180K (44%)
  • Emergency repairs: $140K (34%)
  • Maintenance calls: $90K (22%)

Customer Metrics:

  • Total customers served: 845
  • Repeat customers: 93 (11%)
  • Average transaction: $485
  • Customer lifetime value: $485 (same as first transaction)

The diagnosis was clear: Mike had a transaction business, not a relationship business.

Every dollar required:

  • Finding a new customer
  • Selling them once
  • Never seeing them again (89% of the time)
  • Starting over tomorrow

The Fatal Flaw: No Retention Strategy

Mike's business model was broken:

How Most HVAC Companies Operate:

  1. Customer's AC breaks
  2. They call you (or a competitor)
  3. You fix it for $200-500
  4. They disappear
  5. Next year, their AC breaks again
  6. They call whoever answers first
  7. You lost them

The Math Problem:

At 11% repeat rate, Mike needed to find 750 new customers every year just to maintain $400K revenue.

Customer Acquisition Cost (CAC): $85 per customer
Annual marketing spend: $63,750
Profit margin after CAC: 12%

He was spending $63K/year to stay flat.


The Three Missing Pieces

After analyzing Mike's business for two weeks, I found three critical gaps:

Gap #1: No Recurring Revenue

Mike had ZERO recurring revenue. Every dollar was transactional.

The problem:

  • Revenue resets to $0 every January 1st
  • Completely dependent on weather (hot summers = good year, mild summers = bad year)
  • No predictability, no stability, no sleep

Gap #2: No Customer Relationship System

Mike had no way to stay in touch with customers after the job was done.

He had:

  • No email list
  • No CRM
  • No follow-up system
  • No maintenance reminders
  • No reason for customers to remember him

Out of sight = out of mind = out of business

Gap #3: No Lifetime Value Strategy

Mike treated every customer like a one-time transaction.

He never:

  • Offered maintenance plans
  • Followed up after service
  • Educated customers on preventive care
  • Built relationships
  • Created reasons to come back

He was leaving 89% of his potential revenue on the table.


The Solution: Build a Retention Machine

We rebuilt Mike's business around one core principle:

"It's easier to keep a customer than find a new one."

We implemented a three-part retention system:

Part 1: Membership Program

We created a tiered maintenance membership program that turned one-time customers into recurring revenue.

The offer:

  • Annual maintenance visits (2x per year)
  • Priority emergency service
  • Discounts on repairs
  • No diagnostic fees
  • Extended warranties

Three tiers:

  • Basic: $199/year (1 visit, 10% off repairs)
  • Plus: $349/year (2 visits, 15% off repairs, priority service)
  • Premium: $599/year (2 visits, 20% off repairs, priority service, extended warranty)

Part 2: Customer Retention System

We built a comprehensive follow-up and relationship system that kept Mike top-of-mind year-round.

The system included:

  • Automated email sequences
  • Seasonal maintenance reminders
  • Educational content (how to extend AC life, energy-saving tips)
  • Birthday and anniversary offers
  • Referral incentives

Part 3: Lifetime Value Optimization

We restructured Mike's entire sales process to focus on customer lifetime value instead of transaction size.

Key changes:

  • Every service call included a membership offer
  • Techs were trained on value-based selling
  • Follow-up system to convert one-time customers
  • Referral program to leverage happy customers

The Results: $400K → $1.2M in 18 Months

Here's what happened when we shifted from transactions to relationships:

💰 Annual Revenue: $410K → $1.2M (+193%)
🔁 Recurring Revenue: $0 → $240K/year (NEW)
🎯 Repeat Customer Rate: 11% → 68% (+518%)
💎 Customer Lifetime Value: $485 → $2,850 (+488%)
📊 Marketing Spend: $63,750 → $48,000 (-25%)
⏰ Mike's Hours/Week: 70 → 30 (-57%)
✅ Profit Margin: 12% → 31% (+158%)

The best part?
Mike now has $240K in predictable recurring revenue that hits his bank account every year whether he works or not.


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FR

Franco Ray

Founder, Scale Forge Co.

Franco has driven $500M+ in revenue impact across startups and enterprises. Former fractional CMO and revenue growth strategist with 15+ years transforming struggling businesses into high-performing revenue engines.

#hvacbusiness#servicebusinessgrowth#recurringrevenue#customerretention#membershipprograms

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