William Abberger

Bookkeeping

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William Abberger

Owner

William is the dedicated bookkeeper and financial leader behind The Contractor’s Bookkeeper, providing expert bookkeeping services and strategic financial consulting to small and growing businesses in the construction industry and professional services. Specializing in helping companies too small for a full-time CFO, William brings order to messy books—cleaning up incomplete or inaccurate records, implementing reliable systems (often in QuickBooks), and delivering clear financial insights that track true job profitability, improve cash flow, and support confident growth decisions. Preferring local relationships in the Clearwater, St. Petersburg, Tampa Bay, and greater Florida Gulf Coast areas for face-to-face trust and responsiveness, he also serves clients virtually across the U.S. With a focus on trades like general contractors, plumbing, electrical, HVAC, roofing, remodeling, and professional firms, William turns financial chaos into actionable clarity so owners can focus on building their businesses.

“My goal is simple: give contractors and service professionals accurate, timely numbers and real financial leadership—so they stop guessing and start growing with confidence.” – William, The Contractor’s Bookkeeper

Our Services

The Contractor’s Bookkeeper gives small construction and professional services businesses clean books and CFO-level financial guidance—without the full-time cost. William handles the mess so you get accurate numbers, real profitability insights, and confident growth decisions.

We take your messy, incomplete, or inaccurate books and perform a full cleanup—fixing errors, organizing transactions, and setting up proper systems (usually in QuickBooks) so your financial records become reliable and ready for growth.

We handle all day-to-day recording of income, expenses, vendor payments, subcontractor invoices, and bank reconciliations—keeping your books accurate, up-to-date, and compliant so you never have to worry about scattered records again.

We track costs and revenue by job or project (labor, materials, subs, overhead), delivering clear reports that show true profitability per contract—helping you bid better, control costs, and avoid money-losing jobs.

We prepare easy-to-understand monthly reports, profit & loss statements, balance sheets, and cash flow forecasts—giving you the clear picture of your business performance that small companies usually lack without a CFO.

Acting as your part-time financial advisor, we provide strategic guidance on budgeting, pricing, cost control, tax prep, and growth decisions—delivering CFO-level insights to help small construction and professional services firms make confident, informed choices.

We manage vendor bills, subcontractor payments, progress invoicing, collections, and cash flow—ensuring timely payments out, faster money in, and steady cash flow so surprises don’t derail your projects.

Fix Your Books. Gain Real Insights. Grow Confidently.

Free Consultation – Let’s Talk

What Our Clients Say

“William fixed our messy books fast and gave us clear job costing + real financial insights—like having a part-time CFO at a fraction of the cost. Local Tampa Bay contractor here—highly recommend!”
Mike R., Clearwater, FL