What Should a 20-Person General Contracting Firm Actually Pay for Software?

If you search "general contractor software cost," you'll find estimates that range from $100/mo to $5,000/mo with no context for your crew size or project complexity. A 20-person GC doing residential additions, renovations, and build-outs has very different needs from a commercial-only operation, and the monthly gap between an unoptimized stack and a right-sized one is often thousands of dollars.

Here's the breakdown, pillar by pillar, for a 20-person general contracting firm.

Sales & Marketing: $700-1,200/mo

Lead generation for GCs is usually a mix of marketplace leads and reputation. Angi Leads runs around $500/mo for homeowner renovation inquiries — the failure mode is treating every Angi inquiry as bid-ready when the marketplace mixes small handyman jobs with full additions at the same per-lead cost. Houzz Pro is $150/mo for a client-facing CRM, portfolio, and review management, and it's the tool that makes photo-driven project marketing actually convert instead of just sitting on a portfolio page nobody finds. CallRail is $150/mo for tracking which ads and referral sources produce booked estimates. Proposify is $50/mo for professional proposal design and e-signature tracking. Mailchimp adds $65/mo for past-client newsletters and seasonal promotions. Most GCs pick one lead-gen channel, not both Angi and Houzz simultaneously — running both without CallRail attribution to compare them is the most common overspend in this pillar.

Core Operations: $1,250-2,100/mo

Project management is the anchor — and the biggest line item in the whole stack. Procore runs $800/mo and is built for 10-500 employees with deep scheduling, budgets, document control, RFIs, and subcontractor collaboration; the failure mode is a 20-person residential firm paying for RFI/submittal workflows built for commercial general contracting it never actually uses. Buildertrend is $500/mo for 5-150 employees with a homeowner portal and lighter feature set. CoConstruct is $400/mo for 3-100 employees, popular with custom builders and remodelers. Joist is $39/mo for 1-25 employees as a lightweight estimating and invoicing alternative — fine for simple scopes, but a firm that outgrows it and keeps it running as a habit alongside a full PM platform is paying twice for estimating. STACK is $200/mo for cloud-based takeoff and estimating. CompanyCam is $150/mo for job-site photo documentation. Most 20-person GCs land on Buildertrend or CoConstruct, with Procore reserved for larger crews or commercial work.

Finance: $389/mo

QuickBooks Online is $90/mo for general ledger and job-costed invoicing. Gusto is $200/mo for payroll on hourly field labor, salaried PMs, and 1099 subcontractors. Bill.com is $99/mo for automating material supplier and subcontractor payments. Wisetack covers customer financing at $0/mo (transaction-fee based).

Admin & Security: $430/mo

Google Workspace Business Standard is $170/mo for email and shared calendars. 1Password Business is $95/mo for vaults shared across project software, supplier portals, and banking. DocuSign is $80/mo for e-signatures on construction contracts, change orders, lien waivers, and subcontractor agreements. Huntress Managed EDR is $85/mo for endpoint security on office PCs and PM laptops.

What this adds up to

A genuinely optimized stack for a 20-person general contracting firm lands in the $2,800-4,100/mo range — but we regularly see firms paying $6,000-9,200/mo for the same coverage because they're running Procore sized for a commercial operation, paying for overlapping lead-gen platforms, or never renegotiated after their project mix changed.

Run the free audit with your actual headcount and current spend to see exactly where your general contracting firm's stack stands.