Most exterior painting jobs look profitable on the surface, but hidden costs—labor overruns, material waste, equipment downtime—quietly erode margins. Without tracking profitability per job, you're flying blind and likely leaving money on the table. This guide walks you through the metrics and systems that separate thriving painting contractors from those stuck in low-margin grind.
The Core Metrics That Matter
Profitability per painting job comes down to one formula: Revenue minus Total Costs = Net Profit. But "total costs" is where most painters get sloppy. You need to track three distinct buckets: direct labor, materials, and overhead allocation.
A typical exterior house painting job might gross $3,500–$8,000 depending on square footage, surface prep, and your market. But if you're not measuring what actually gets spent, that revenue number is misleading. Net profit on residential exterior work typically ranges 15–25% for established, efficient operations. If you're consistently below 15%, your pricing or cost control needs attention.
Breaking Down Labor Costs
Labor is usually your largest expense—often 40–50% of revenue on exterior jobs. Here's where precision matters.
Track actual hours per job, not estimates. Use a simple spreadsheet or job costing software and log:
- Initial estimate and site visit time
- Surface prep hours (pressure washing, scraping, caulking)
- Primer application
- Final coat application
- Touch-ups and cleanup
A 2,000 sq. ft. exterior might take 3–5 days with a two-person crew, depending on condition and weather. If you bid it at 4 days and it runs 6, you've just cut your effective hourly rate by 33%. Spot this pattern, and you can adjust future estimates or streamline processes.
Material Costs: Know Your Actual Spend
Exterior paint, primer, caulk, and supplies are typically 15–25% of revenue. The gap between estimate and actual spend is where money vanishes.
- Premium exterior paint: $50–$85 per gallon (5-gallon buckets)
- Quality primer: $35–$60 per gallon
- Caulk and sealants: $8–$15 per tube; expect 4–8 tubes per job
- Prep supplies: brushes, rollers, drop cloths, tape, cleaners—budget $200–$400 per job
Track your actual usage. If you estimate 15 gallons of paint and use 18, figure out why. Did you underbid square footage? Did the existing surface demand extra coats? Did crew waste occur? Once you identify the leak, you either adjust pricing or improve execution.
Overhead Allocation: The Hidden Drain
Many painting contractors ignore overhead—insurance, truck maintenance, gas, office staff, equipment depreciation. These run 10–20% of revenue on a healthy operation.
If you're a solo operator with low overhead, you might allocate just $500–$800 per job. If you run a crew of four with a dispatcher, that jumps to $1,500–$2,000 per job. Without allocating real overhead, you'll think unprofitable jobs are breaking even.
Tracking Systems That Work
You don't need enterprise software. A disciplined spreadsheet beats sloppy accounting every time.
Create a job cost sheet for each project:
- Job name, date, customer contact
- Estimated revenue vs. actual invoice amount
- Labor: names, hours, hourly rates (total labor cost)
- Materials: paint, primer, supplies purchased (line items with costs)
- Equipment rental or delivery fees
- Overhead allocation (fixed amount per job)
- Final calculation: Gross Profit and Profit Margin %
Review every job at completion. Identify which jobs hit your 20%+ margin target and which fell short. Over 10 jobs, you'll see patterns—certain job types, crew combinations, or seasons that consistently underperform.
When to Raise Prices or Cut Costs
If your margin average is below 15% across a rolling 12-month sample, one of three things is true:
- Your pricing is too low for your market
- Your labor efficiency is weak
- Material or overhead costs are bloated
Run a quick market check: call three competing painters for quotes on the same 2,000 sq. ft. house. If you're 20%+ below market, pricing is your lever. If you're near market, focus on labor speed and material waste.
Listing your services on Mercoly helps you reach more qualified customers, which lets you be selective about job profitability rather than chasing every low-margin lead.
Frequently Asked Questions
Q: How often should I review job profitability? Review each job within one week of completion while details are fresh, and do a full month summary at month-end to spot trends early.
Q: What's a realistic profit margin target for residential exterior painting? Aim for 18–25% net profit; anything under 12% signals a pricing or cost problem that compounds across jobs.
Q: Should I track small jobs differently than large contracts? Yes—jobs under $2,000 typically have higher overhead per dollar, so you may need to price them 5–10% higher or batch them to protect margins.
Start tracking your next five exterior jobs with the framework above, and you'll see exactly where profitability hides and where it leaks.