PropCalcThe Complete Renovation Budget Guide for House Flippers
Live Market Rates
Euribor 3M:|Euribor 6M:|Euribor 12M:|ECB Rate:|BOE Rate:|Fed Rate:|10Y UST:
S&P 500:|NASDAQ:|FTSE 100:|DAX:|IBEX 35:|CAC 40:
Back to Blog
RenovationMay 2, 202610 min read

The Complete Renovation Budget Guide for House Flippers

The Complete Renovation Budget Guide for House Flippers

Accurately estimating renovation costs is one of the most critical skills for a successful house flipper. Underestimating rehab costs is the number one reason flips fail. This guide provides realistic cost ranges to help you build accurate budgets.

Kitchen Renovation

The kitchen is typically the most expensive room to renovate, but it also provides the highest return on investment.

Budget renovation ($8,000 - $15,000): Refacing cabinets, new countertops (laminate or butcher block), painting, new hardware, updated lighting, and a basic backsplash.

Mid-range renovation ($15,000 - $30,000): New cabinets, granite or quartz countertops, stainless steel appliances, tile backsplash, and new flooring.

High-end renovation ($30,000 - $60,000+): Custom cabinets, premium stone countertops, high-end appliances, designer tile, hardwood flooring, and structural changes.

Bathroom Renovation

Bathrooms are the second most impactful room for resale value.

Budget renovation ($3,000 - $7,000): New vanity, toilet, fixtures, paint, and basic tile work.

Mid-range renovation ($7,000 - $15,000): New tub/shower, tile surround, vanity with stone top, updated lighting, and new flooring.

High-end renovation ($15,000 - $30,000+): Walk-in shower with glass enclosure, freestanding tub, double vanity, heated floors, and premium finishes.

Flooring

Flooring costs vary significantly based on material choice:

  • Laminate/Vinyl plank: $2 - $5 per sq ft installed
  • Hardwood: $6 - $12 per sq ft installed
  • Tile: $5 - $15 per sq ft installed
  • Carpet: $2 - $4 per sq ft installed

For a typical 1,500 sq ft flip, budget $3,000 - $18,000 for flooring depending on material choices.

Exterior and Curb Appeal

First impressions matter enormously. Budget for:

  • Paint exterior: $3,000 - $8,000
  • Landscaping: $1,500 - $5,000
  • New front door: $500 - $2,000
  • Roof repair/replacement: $5,000 - $15,000
  • Driveway: $2,000 - $6,000

Systems and Structural

These are the "invisible" costs that many new flippers forget:

  • Electrical update: $2,000 - $8,000
  • Plumbing repair: $1,500 - $6,000
  • HVAC repair/replacement: $3,000 - $10,000
  • Foundation repair: $5,000 - $15,000
  • Roof: $5,000 - $15,000

The Contingency Rule

Always add a contingency buffer to your renovation budget:

  • Experienced flipper: 10% contingency
  • Moderate experience: 15% contingency
  • First-time flipper: 20% contingency

This buffer covers unexpected issues like hidden water damage, outdated wiring, or structural problems that only become apparent once demolition begins.

Tips for Controlling Costs

  1. Get multiple bids — always get at least 3 quotes for major work

  2. Buy materials in bulk — negotiate discounts at supply houses

  3. Do cosmetic work yourself — painting, landscaping, and simple installations

  4. Build a reliable contractor network — good relationships lead to better pricing

  5. Create a detailed scope of work — prevents scope creep and change orders

Key Takeaway

The most profitable flips focus on cosmetic renovations rather than structural changes. Look for properties that need paint, flooring, fixtures, and landscaping rather than foundation work, new roofs, or complete system replacements.

Complete Renovation Budget Guide for Property Investors

Accurately budgeting a renovation is one of the most critical skills for any property investor. Cost underestimation is the primary reason projects fail to achieve expected returns.

Cost Categories in a Renovation

Structure and waterproofing: Foundations, structural walls, roof, and waterproofing typically represent 20-30% of the total budget. In older properties, hidden structural problems are frequently discovered after work begins.

Technical installations: Electrical, plumbing, HVAC, and telecommunications represent 25-35% of the budget. Upgrading electrical installations to meet current standards is mandatory in most jurisdictions for deep renovations.

Finishes: Floor and wall coverings, ceilings, joinery, kitchen, and bathrooms represent 30-40% of the budget. This is where you have the most flexibility to control costs without compromising final quality.

Fees and permits: Architect, engineer, project management, building permits, and municipal fees typically represent 10-15% of the total budget.

Reference Costs by Intervention Type (2025)

Intervention TypeCost per m² (€)
Light renovation (finishes only)300 – 500
Medium renovation (installations + finishes)600 – 900
Deep renovation (structure + everything)1,000 – 1,500
New construction1,200 – 1,800

Contingencies and Unexpected Costs

Never budget without a contingency reserve. For older properties (pre-1970), the reserve should be 20-25% of the base budget. For more recent properties, 10-15% is sufficient.

The most common unexpected costs include: asbestos in roofs and insulation (pre-1990 buildings), rising damp in basements and ground floors, aluminium electrical wiring (dangerous and non-compliant), and timber structures with woodworm or termite damage.

Getting Reliable Quotes

Always request a minimum of 3 quotes for each category of work. Be wary of quotes significantly below average — they usually indicate poor quality work, inferior materials, or an intention to charge extras during the project.

Require detailed line-item quotes (not lump sums), with specification of materials to be used. Always include a fixed-price clause or a clear mechanism for managing variations.

Use our Fix & Flip Calculator to integrate renovation costs into your project profitability analysis.

Reviewed by Luís Castanheira

Founder of PropCalc

Ready to analyze your deal?

Use our free calculator for a complete cost and profit analysis.

Open Calculator