QuickBooks job costing, commercial roofing accounting, and retainage tracking for Detroit roofing contractors.
Metro Detroit is a mixed residential and industrial roofing market. The outer suburbs — Troy, Rochester Hills, Shelby Township, Canton, and Novi — generate high-value residential re-roof volume. The I-94 and I-75 industrial corridors have dense commercial and industrial roofing demand. Detroit's aging urban housing stock creates steady repair and re-roof work in the city itself. Michigan's freeze-thaw climate drives both emergency repair work in winter and accelerated re-roof replacement as roofs age faster than in milder climates. Commercial jobs in the automotive manufacturing supply chain often carry strict insurance and bonding requirements — which means WIP schedules and certified payroll may be required.
Michigan's prevailing wage law applies to roofing on many publicly funded construction projects in metro Detroit. Prevailing wage jobs require separate payroll tracking, certified payroll reports, and compliance documentation. Most QuickBooks setups aren't built to handle this — it needs to be flagged at the job level from the moment you win the bid.
Every Detroit roofing job gets its own QuickBooks Project. Every invoice, bill, and expense tagged to the correct job. Monthly Project Profitability report shows gross margin on every completed job — so you know which work types in the Detroit market are worth bidding more of.
Retainage held on Detroit commercial jobs tracked in a dedicated QuickBooks account — visible on your balance sheet, aged monthly, flagged for collection when jobs complete. Most contractors we onboard have $40K–$120K in untracked retainage.
Two reports by the 10th of every month: company P&L and per-job profitability sorted by gross margin. Reports that drive real decisions, not just annual tax filing.
Every sub paid over $600 in Detroit tracked year-round. Clean 1099 list ready January 31st — no scramble, no missing payments, no IRS exposure.
JobCostBooks works remotely inside your QuickBooks Online account — we serve Detroit contractors across the full metro area.
All work is done remotely. Location doesn't limit service quality.
Fixed monthly pricing. QuickBooks cleanup included in onboarding.
If JobCostBooks doesn't find at least $10,000 in fixable profit leaks in your first 90 days, your first month is free. Uncollected retainage, job costing errors, miscategorized expenses — we've never had to honor it.
Prevailing wage roofing jobs in Michigan require tracking hours worked per employee per trade classification on each job. In QuickBooks, this means using timesheets with job-level time tracking and a separate labor cost category for prevailing wage work. The certified payroll report must match what's in QuickBooks — a discrepancy can trigger an audit or contract violation.
$325–$750/month for a local Metro Detroit bookkeeper. JobCostBooks provides roofing-specialist bookkeeping — job costing, retainage tracking, monthly P&L — for $600–$1,800/month depending on revenue and crew size.
Yes. JobCostBooks operates inside your QuickBooks Online account with accountant-level access — the same as any local bookkeeper. All data stays in your QuickBooks account, which you own and control. We communicate via WhatsApp and email during US business hours.
Book the free 15-minute QuickBooks screen-share. If it's a fit, onboarding starts within 3–5 business days. QuickBooks cleanup and setup takes 10–14 business days. First clean month-end report within 30 days of starting.
Book a free 15-minute QuickBooks screen-share. We'll open your file, find the profit leaks, and tell you exactly what they're costing you.
Book My Free Assessment →$10K guarantee · Plans from $600/mo · hello@jobcostbooks.com