What Is Rehab Costs?
Rehab costs are the make-or-break variable in every BRRRR deal and flip. Underestimate by $10,000 and your profit margin vanishes. In 2026, materials remain 30-40% above pre-pandemic levels, labor is tight in most metro areas, and permit timelines have stretched. Cosmetic rehabs run $15-30/sqft, mid-range remodels $30-60/sqft, and gut renovations $100-150/sqft. The fix: build a 15-20% contingency into every budget, lock your scope of work before closing, and get three contractor bids minimum.
The total expense of renovating an investment property, including materials, labor, permits, and contingency reserves — typically the second-largest cost in a BRRRR deal after the purchase price.
At a Glance
- Second-largest cost in BRRRR after purchase price — controls whether the deal math works
- Cosmetic rehab: $15-30/sqft; mid-range: $30-60/sqft; heavy: $60-100/sqft; gut: $100-150/sqft
- Materials in 2026 remain 30-40% above pre-pandemic levels
- 15-20% contingency buffer is non-negotiable — hidden issues always surface
- Hard money lenders fund rehab through draw schedules with per-draw inspections ($150-300 each)
- The 70% Rule ties rehab directly to deal viability: (ARV × 0.70) − rehab costs = max purchase price
How It Works
Rehab costs break into four categories, and skipping any of them during estimation is how budgets blow up.
Exterior: Roof, siding, windows, gutters, foundation repairs, landscaping, driveway, exterior paint. A roof replacement alone runs $8,000-$15,000 for a single-family home. Foundation issues can add $5,000-$30,000 depending on severity. These are the big-ticket items that scare off retail buyers — which is why distressed properties with exterior issues often sell at the deepest discounts.
Interior finishes: Kitchen remodel ($8,000-$25,000 depending on scope), bathroom updates ($3,000-$10,000 each), flooring ($3-$8/sqft for LVP, more for hardwood), paint ($1-$3/sqft), and fixtures. Kitchens and bathrooms drive the most appraisal value per dollar spent — always prioritize these.
Mechanical systems: HVAC ($4,000-$8,000 for replacement), electrical panel upgrade ($1,500-$3,000), plumbing updates ($2,000-$8,000), and water heater ($800-$2,000). These don't add visible appeal, but they eliminate inspection flags that drag down appraisals and scare off tenants.
Contingency: Budget 15-20% of your total estimated cost for surprises. Knob-and-tube wiring behind walls. Asbestos in floor tiles. Galvanized plumbing that fails inspection. Termite damage under that new-looking subfloor. These aren't hypotheticals — they show up on every third or fourth deal. If you can't absorb the contingency and still make the deal work, the deal doesn't work.
Professional investors use a three-tier estimation process: a napkin test for initial screening (2 minutes, back-of-envelope), a square footage method for soft offers (10-15 minutes, using local cost-per-sqft data), and detailed line-item contractor bids before closing (2-3 days, three bids minimum). Never commit capital based on the napkin test alone.
Real-World Example
You're evaluating a 1,200-sqft 3-bedroom ranch in Cleveland that needs a mid-range rehab. Here's the line-item budget:
Kitchen remodel (cabinets, countertops, appliances, backsplash): $12,000. Two bathroom updates (vanity, tile, fixtures): $7,000. LVP flooring throughout ($5/sqft × 1,200): $6,000. Interior paint ($2/sqft × 1,200): $2,400. Exterior paint: $3,500. HVAC service and ductwork cleaning: $1,800. Electrical panel upgrade to 200-amp: $2,200. Plumbing — replace galvanized supply lines: $3,500. Landscaping and curb appeal: $1,500. Permits: $800. Dumpster rental (2 loads): $900.
Subtotal: $41,600. Contingency at 15%: $6,240. Total rehab budget: $47,840.
The property lists at $72,000. ARV based on comps: $158,000. 70% Rule check: ($158,000 × 0.70) − $47,840 = $62,760 max offer. At $72,000 asking, you'd need to negotiate down to the low $60s or walk. The rehab budget is what sets that ceiling — not your feelings about the deal.
Pros & Cons
- Accurate rehab estimation protects profit margins and prevents capital traps
- Forced appreciation comes directly from rehab spending — every strategic dollar spent creates equity
- A thorough rehab attracts better tenants, reducing vacancy and turnover costs downstream
- Systems upgrades (HVAC, electrical, plumbing) eliminate inspection flags that hurt appraisals
- Well-documented rehab costs strengthen your refinance application — lenders want to see where the money went
- Materials pricing in 2026 fluctuates quarterly — estimates from 3 months ago may already be stale
- Labor shortages in most markets create scheduling bottlenecks and contractor price premiums
- Hidden issues (structural, environmental, code violations) only surface after demo begins
- Over-improving beyond comp ceilings wastes renovation dollars without increasing ARV
- Hard money draw schedules mean you may front costs before reimbursement, straining cash reserves
Watch Out
The #1 rehab mistake isn't underestimating a single line item. It's skipping the contingency buffer. Investors see $40,000 in estimated costs, tell themselves "I'll be careful," and budget exactly $40,000. Then they open a wall and find knob-and-tube wiring. Or they pull up carpet and find water-damaged subfloor. A $6,000-$8,000 surprise with no contingency buffer turns a profitable deal into a breakeven or a loss.
The #2 mistake: estimating costs based on national averages instead of local market data. A kitchen remodel in Memphis runs $8,000-$12,000. The same scope in San Francisco runs $25,000-$40,000. Always price with local contractor bids, not Zillow renovation estimates or national median data.
Don't forget the carrying costs during renovation. If you're holding a hard money loan at 12%, every month of rehab costs roughly $1,000/month on a $100K loan in interest alone. A rehab that runs 2 months over schedule adds $2,000+ in interest — money that comes straight out of your margin.
Ask an Investor
The Takeaway
Rehab costs are the variable you have the most control over — and the one that sinks the most deals when it's handled carelessly. Build the scope before you buy, get three bids, add 15-20% contingency, and run the 70% Rule before you offer. If the numbers don't clear with the contingency included, the deal doesn't work. Period. The investors who consistently profit from BRRRR and flips aren't the ones who find the cheapest contractors — they're the ones who budget accurately and refuse to start a project they can't afford to finish.