Complete Bathroom Renovation Cost Breakdown: Everything You Need to Know

A complete bathroom renovation can dramatically enhance both the functionality and aesthetic appeal of your home. However, understanding the full cost breakdown is crucial before embarking on such a project. This guide will walk you through every major expense category, hidden costs to anticipate, and tips for maximising value, making it the ultimate resource for homeowners planning a bathroom upgrade.

Average Cost of a Full Bathroom Renovation

The average cost of a complete bathroom renovation in 2025 ranges from $8,000 to $25,000, depending on the size, location, material selection, and labour charges.

• Small Bathroom (30-40 sq. ft.): $8,000 – $12,000
• Medium Bathroom (50-70 sq. ft.): $13,000 – $18,000
• Large Bathroom (100+ sq. ft.): $18,000 – $25,000+

Luxury remodels can exceed $35,000, especially when high-end materials, custom cabinetry, and smart technology are included.

Major Cost Categories

1. Demolition and Preparation

Before new installations begin, the old bathroom must be stripped down. This includes:

• Removal of old fixtures, tiles, and cabinetry
• Wall repair and surface prep

Estimated Cost: $500 – $2,000

2. Plumbing and Electrical Work

Upgrading or relocating plumbing and wiring often consumes a large portion of your budget.

• New pipework or layout changes
• GFCI outlets, recessed lighting, and heated floors

Estimated Cost: $1,000 – $5,000+

3. Fixtures and Fittings

This includes essential components like:

• Toilet: $150 – $1,000
• Bathtub: $500 – $3,500
• Shower system: $800 – $5,000
• Sink and faucet: $200 – $1,200

Total Estimated Cost: $2,000 – $10,000+

4. Tiling and Flooring

Tile prices vary greatly depending on material and size:

• Ceramic: $3 – $7/sq. ft.
• Porcelain: $5 – $12/sq. ft.
• Natural stone: $10 – $25+/sq. ft.

Labour costs also apply to waterproofing and precision work.

Estimated Cost: $1,200 – $5,000+

5. Cabinetry and Storage

• Vanities, medicine cabinets, and linen closets
• Custom vs prefab units

Estimated Cost: $800 – $4,500

6. Painting and Finishing Touches

Final elements like:

• Moisture-resistant paint: $50 – $200
• Hardware (towel bars, mirrors): $100 – $500

Estimated Cost: $150 – $700

Hidden and Unexpected Costs

These often-overlooked items can derail your budget:

• Water damage repairs: Mould, rot, or subfloor damage can cost $500 – $3,000+
• Permit fees: $100 – $1,000 depending on municipality
• Design consultation fees: $200 – $1,500 if using a professional
• Temporary accommodation: if your only bathroom is out of use

Cost-Saving Tips for Bathroom Renovation

1. Retain existing layout: Reduces plumbing and wiring costs.
2. Use mid-range materials: Balances quality and price.
3. Do some work yourself: Painting or demo can save on labour.
4. Shop sales and closeouts: Especially for tiles, vanities, and fixtures.
5. Request multiple quotes: Always compare at least 3 contractors.

Factors That Affect Total Cost

• Bathroom Size: More area = more materials and labour
• Material Selection: High-end finishes significantly raise costs
• Location: Urban areas tend to have higher labour rates
• Structural Modifications: Any wall removal or relocation adds complexity
• Labour vs DIY: Hiring pros ensures quality but adds to the budget

Frequently Asked Questions

Conclusion

A complete bathroom renovation is a valuable investment that enhances both your home’s functionality and resale value. By understanding the full cost breakdown—from demolition to finishing touches—you can plan strategically, avoid budget pitfalls, and create a space that meets your needs and style.

For a successful project, always get multiple estimates, stick to a well-defined scope, and allocate a contingency budget of at least 10–15% for unforeseen expenses.