Painting Estimate Software for Painting Contractors (2026)

Painting bids look simple — until you start counting doors, windows, trim profiles, and coat requirements. Painting estimate software takes the math off your plate so you spend time painting, not calculating.

What painting contractors need in estimate software

• Wall sqft calculator — deduct windows/doors, add trim linear footage
• Coat count — primer coat vs. 1 coat vs. 2 coats changes materials 2×
• Paint brand & sheen — flat, eggshell, satin, semi-gloss, gloss
• Prep work — patching, caulking, sanding, power wash for exteriors
• Surface type — drywall, plaster, brick, stucco, wood siding have different rates

Painting pricing quick reference (2026)

• Interior walls (per sqft, 2 coats) — $1.50–$3.50
• Interior doors (per door, both sides) — $80–$150
• Interior trim/baseboards (per lin ft) — $2–$5
• Exterior siding (per sqft, 2 coats) — $2–$5
• Exterior trim (per lin ft) — $3–$6
• Ceiling (per sqft) — $1–$2.50
• Cabinet painting (per door/drawer) — $60–$120
• Deck staining (per sqft) — $2–$5

How to estimate a painting job

1. Measure wall area: (perimeter × ceiling height) minus (windows × 15 sqft, doors × 20 sqft)
2. Add ceiling area and trim linear footage separately
3. Calculate gallons: 1 gallon covers ~350 sqft per coat, adjust for texture
4. Add prep labor: patching takes 1–3 hrs/room, exterior power wash 2–4 hrs/house
5. Apply markup: most painting contractors target 40–50% gross margin

Painting estimating mistakes to avoid

• Skipping a prep walk — hidden holes, water stains, and peeling paint kill your hourly rate
• Quoting by the room without measuring — rooms vary 2–3× in wall area
• Not specifying brand/sheen in writing — leads to disputes when client wants premium paint

The ConstruMate painting calculator measures by room or sqft, handles coat counts, and generates a clean line-item proposal ready for your client to e-sign.

Build your first painting estimate free →