Vortonic

Free Tool

Rehab Cost Estimator.

Estimate renovation costs category by category. Select light, medium, or full rehab levels for each area and get an instant cost breakdown.

Renovation Categories

Select a renovation level for each category. Adjust quantities where applicable.

Kitchen

Bathrooms

per unit

Flooring

per sq ft

Roof

HVAC

Electrical

Plumbing

Paint (Interior)

per sq ft

Windows

per unit

Landscaping

How to Estimate Rehab Costs for a House Flip

Accurate rehab cost estimation is one of the most critical skills in house flipping. Underestimate costs and your profit evaporates. Overestimate and you'll pass on good deals. The best approach is to break renovation costs into categories and estimate each one individually rather than guessing a total number.

Category-Based Cost Estimation

Professional flippers break rehab budgets into 10 or more categories. For each one, they determine the scope of work (light cosmetic update vs. full replacement) and estimate costs based on the property's size and local labor/material rates. Here are the main categories:

  • Kitchen — The highest-ROI room in most flips. Light updates (paint cabinets, new hardware, countertops) cost $5-8K. Medium updates (new cabinets, appliances, counters) run $12-20K. Full gut remodels start at $30K+.
  • Bathrooms — Budget $3-5K per bathroom for cosmetic updates, $8-12K for mid-range remodels, and $15-25K for full renovations with layout changes.
  • Flooring — Vinyl plank runs $3-5/sqft installed. Hardwood refinishing is $3-6/sqft. New hardwood or tile runs $8-15/sqft installed.
  • Systems (HVAC, Electrical, Plumbing)— These are the "invisible" costs that eat budgets. Minor repairs run $500-3K each. Full replacements can hit $8-15K per system.
  • Roof — Repairs cost $2-5K. A full replacement on a typical single-family home runs $8-15K depending on materials and pitch.

Common Rehab Budget Mistakes

  1. No contingency buffer — Always add 10-20% for surprises. Hidden water damage, outdated wiring, and code compliance issues appear in almost every project.
  2. Forgetting permits and fees — Depending on your municipality, permits for electrical, plumbing, and structural work can add $1-5K.
  3. Underestimating labor costs — Material costs are easy to research. Labor costs vary wildly by market and are often higher than expected.
  4. Over-improving for the neighborhood— Don't install luxury finishes in a starter-home neighborhood. Your improvements should match the best comps in the area, not exceed them.

Cost Ranges by Market

Renovation costs vary significantly by location. A kitchen remodel in rural Alabama costs far less than the same scope in San Francisco. As a rule of thumb, coastal and major metro markets run 30-60% above national averages, while smaller markets may be 10-30% below. Always calibrate your estimates with local contractor bids before committing to a deal.

This free estimator uses national average cost ranges to give you a starting point. For market-specific cost data and AI-powered rehab estimation, Vortonic's platform integrates local labor rates, material costs, and historical renovation data to deliver estimates tailored to your exact market.

Frequently Asked Questions

How much does a house flip renovation cost?

The average house flip renovation costs between $20,000 and $75,000, depending on the property's condition, size, and market. Light cosmetic rehabs (paint, flooring, fixtures) typically run $15-30K, medium rehabs (kitchen and bath updates, some systems work) run $30-60K, and full gut renovations can exceed $75-150K.

What is the most expensive part of a house renovation?

Kitchen renovations are typically the most expensive single room, ranging from $5,000 for light updates to $35,000+ for a full remodel. However, system replacements like HVAC, electrical rewiring, or roof replacement can individually exceed kitchen costs. Foundation and structural repairs are often the most expensive surprise costs.

How do you estimate rehab costs for a flip?

Walk the property and note every item needing repair or replacement. Break costs into categories: kitchen, bathrooms, flooring, paint, roof, HVAC, electrical, plumbing, windows, and landscaping. Get contractor bids or use per-square-foot and per-unit estimates for each category, then add 10-20% contingency for unexpected issues.

Should I add contingency to my rehab budget?

Yes. Always add a contingency of 10-20% to your rehab estimate. Unexpected issues — hidden water damage, outdated wiring, foundation problems — appear in almost every renovation. A contingency buffer prevents these surprises from destroying your profit margin.

How accurate are online rehab cost estimators?

Online rehab cost estimators provide useful ballpark figures for initial deal screening, typically within 15-25% of actual costs. They're most accurate for standard rehabs in average-cost markets. For precise estimates, always get contractor bids and walk the property in person before committing to a deal.

Get market-specific rehab estimates.

Vortonic's platform uses local labor rates, material costs, and historical renovation data to deliver rehab estimates tailored to your exact market.

Book a DemoAll Calculators