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    Plumbing & HVAC Cost Estimator (Free)

    How do I calculate the total cost of a plumbing or HVAC job with markup?

    The estimator follows standard contractor practice: it sums material, labor (hours x rate), permits, and disposal into a subtotal, applies markup as a percentage, then adds contingency on top, and finally applies tax. The expression is total = ((material + labor + permits + disposal) x (1 + markup%)) x (1 + contingency%) x (1 + tax%).

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    Related questions

    Estimates and general guidance only. Verify against your local code and AHJ before any installation. Gas, electrical, and refrigerant work is hazardous to untrained users.

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