Skip to main content
Case Study Plumbing Financial Planning Process Optimization

From 8% Margins to 19%: A Profitability Transformation

Revenue was growing. Profit was disappearing. Here's how a Dallas-area plumbing company fixed the fundamentals and unlocked the growth they deserved.

8% → 19%
Net profit margin
$2.1M → $3.4M
Revenue in 14 months
+38%
Average ticket value
−22 hrs/wk
Dispatch time wasted

The Situation

River Bend Plumbing had grown steadily since owner Diane Kwon took over from her retiring father seven years ago. She'd expanded from 6 techs to 18, added a full-time dispatcher, and was booking jobs two weeks out. To anyone watching from the outside, the business looked healthy.

But Diane was worried. Despite $2.1M in revenue, she was netting just 8% — barely $168,000 on a business she worked 60 hours a week to run. She couldn't take an owner's draw without feeling guilty, couldn't afford to hire another admin without pinching cash flow, and had no idea why her margins were so thin when her techs were booked solid.

"I was billing more than my father ever did, but the money felt like it was leaking out of a bucket I couldn't find," she said. "At some point I started wondering if the business was just fundamentally broken."

"I was billing more than my father ever did, but the money felt like it was leaking out of a bucket I couldn't find."

— Diane Kwon, Owner, River Bend Plumbing

Three Leaks We Found

The business wasn't fundamentally broken. It had three specific structural problems — each fixable with the right strategy.

01

Time-and-Materials Pricing Without Overhead Recovery

River Bend was billing labor at $95/hour — a rate set five years ago that had never been recalculated. True loaded labor cost (including benefits, workers' comp, vehicle allocation, and supervision overhead) was $78/hour. After factoring in non-billable time and callback rates, the effective margin on labor was less than 12% — before materials markup.

02

Dispatch Inefficiency Creating Unbillable Hours

Without route optimization or priority-based scheduling, techs were averaging 2.4 hours per day in windshield time — unbillable, unproductive, and demoralizing. At 18 techs over 250 working days, that was over 10,800 billable hours lost annually: effectively more than 5 full-time technicians working for free.

03

No Performance-Based Compensation Structure

All 18 techs were paid flat hourly rates regardless of productivity, quality, or revenue generated. High performers received no premium and low performers faced no accountability. The result: average productivity and no internal incentive for technicians to improve efficiency or service quality.

A Financial-First Approach

The strategic priority was clear: fix the economics before scaling. Adding revenue on top of a broken cost structure only amplifies losses. We built the financial foundation first, then created the operational systems to protect it.

1

Flat-Rate Pricing Model

We built a comprehensive flat-rate price book for River Bend's 180 most common service scenarios. Each price was calculated bottom-up: true labor cost × a productivity factor × the required margin, then rounded to a customer-friendly number. The rollout was positioned as a "transparent pricing" initiative — customers actually responded positively. Average ticket value increased 38% in the first quarter.

2

Dispatch Software + Route Optimization

We evaluated and implemented a field service management platform with GPS-integrated dispatch optimization. Routing efficiency reduced average daily windshield time from 2.4 hours to 0.9 hours per tech. That recovery of 1.5 billable hours per tech per day generated an estimated $310,000 in incremental annual revenue at new flat-rate pricing — with zero new customers required.

3

Technician Performance + Incentive Structure

We designed a tiered compensation structure that rewarded technicians for productivity (jobs completed), quality (callback rate), and revenue (average ticket value). Top techs saw their take-home pay increase 18%. The bottom two performers left within 90 days — a natural accountability outcome. Average productivity per tech improved 24% within six months.

4

Monthly Financial Review Cadence

We implemented a structured monthly financial review: P&L, cash flow, accounts receivable aging, cost-per-job by category, and margin by service type. Diane went from reviewing financials quarterly (reactively) to monthly (proactively). She caught a materials billing error within two months that had been leaking $4,200 per month for at least a year.

14 Months of Disciplined Execution

The business that Diane once worried was "fundamentally broken" became one of the most profitable plumbing operations in the DFW market.

19%

Net Profit Margin

Up from 8%

$3.4M

Annual Revenue

Up from $2.1M

+38%

Avg Ticket Value

Flat-rate impact

$645K

Net Profit

Up from $168K

"For the first time in seven years, I feel like I actually own this business — not the other way around. I take a real owner's draw. I know exactly where every dollar goes. And when I hire now, I hire because I have capacity for growth, not because I'm drowning."

— Diane Kwon, Owner, River Bend Plumbing