For Construction Businesses

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Built for Contractors Who Want Better Numbers and Better Control

Profitability and efficiency don’t happen by accident in construction. Between job costing, WIP, retainage, payroll, and cash flow swings, small mistakes compound fast.

We work exclusively with:

  • General contractors

  • Subcontractors

  • Construction trades

  • Engineering firms

  • Architectural practices

Our role is simple: clean up the numbers, build systems that hold up, and help you make better decisions with confidence.

How We Help Construction Businesses

This isn’t generic “business consulting.” It’s construction-aware accounting and advisory built from 40+ years of experience working with contractors in the real world.

We help at every stage:

  • Starting a construction business

  • Growing and scaling

  • Cleaning up messy books

  • Preparing for bonding or financing

  • Planning long-term transitions

Everything we do is practical, documented, and tied to cash flow.

Core Services for Construction Firms

Accounting Done for You

Stop burning time on bookkeeping and back-office work. We handle the financials so you can focus on running jobs, managing crews, and bidding work.

Bookkeeping for Growth

Clean books are the foundation — insight is the value. We go beyond data entry to identify trends, margin leaks, and job-level performance issues.

Cash Flow Management

In construction, cash is king — and profit doesn’t always mean liquidity. We help you manage inflows and outflows so payroll, taxes, and overhead don’t create stress.

Internal Control Systems

Strong systems protect cash and reduce mistakes. We design controls that let you work on the business — not chase fires inside it.

Succession Planning

Passing a construction business to family, partners, or buyers requires planning — not assumptions. We help structure transitions that protect value and avoid surprises.

Starting a Construction Business

Starting right saves years of cleanup later. We guide you through entity setup, accounting systems, tax structure, and early-stage compliance.

Strategic Business Coaching (Construction-Focused)

More than a tax return. We act as a financial sounding board — helping you think through growth, risk, pricing, and cash decisions with real numbers.

Why Contractors Choose Us

Ready to Get Your Construction Numbers Under Control?

If your WIP, job costing, or cash flow feels out of control, you don’t need more noise, you need clean numbers and straight answers. We work with contractors, trades, engineers, and architects to fix the books, clean up WIP, and cut tax surprises so you can focus on running jobs.

Why Choose Us

Why Contractors Trust
d.f. o’brien & co.

We focus on contractors, trades, engineers, and architects only. With 40+ years in construction accounting, we give you clean numbers, straight answers, and bonding-ready financials you can rely on.

How We Help Contractors Succeed

Construction CPAs, Not Generalists

We work with contractors, trades, engineers, and architects every day not generic “small businesses.

40+ Years in Construction

Decades of field-tested experience with WIP, job costing, GAAP financials, bonding, and cash flow.

Clean, Bonding-Ready Numbers

Financial statements and WIP reports that match the field and keep your surety, bank, and owners confident.

Straight Talk & Plain-English Advice

No fluff, no corporate jargon, just clear explanations and a CPA you can reach when something breaks.