The complete breakdown of costs beyond the initial quote

Every day we meet homeowners shocked by renovation costs that weren’t in their original quote. While some companies deliberately hide these costs to win jobs, at RenoWarriors we believe in upfront transparency. Here’s what really goes into a quality renovation in Melbourne’s South East.

Melbourne’s South East councils have varying permit requirements and costs. These are mandatory for most renovation work and cannot be avoided.

Melbourne SE Council Permit Costs (2025)


Building permit application

$900-$1,200

Planning permit (if required)

$530-$1,500

Plumbing Permit

$200-$400

Electrical Permit

$900-$1,200

State Government Levy

$1.28 per $1,000

building surveyor fees

$500-$1,200

Inspection Fees


Pre-construction inspection

$200-$300

Waterproofing inspection

$150-$250

Frame Inspection

$200-$350

final inspection

$250-$400

Melbourne’s South East councils have varying permit requirements and costs. These are mandatory for most renovation work and cannot be avoided.

Melbourne SE Council Permit Costs (2025)


Building permit application

$45-$55

per sqm

Planning permit (if required)

$530-$1,500

Plumbing Permit

$200-$400

Electrical Permit

$900-$1,200

State government levy

$1.28 per $1,000

building surveyor fees

$500-$1,200

What Gets Removed

A complete renovation typically involves removing:

  • All existing tiles (walls and floors)
  • Old waterproofing membrane
  • Existing fixtures and fittings
  • Old plumbing and electrical
  • Damaged or unsuitable substrate
  • Insulation (if contaminated or damaged)

These “little things” add up quickly but are essential for a functioning renovation.

Hardware Costs That Add Up


Handles and pulls

$15-$80

each

Door Hinges

$25-$60

per pair

Drawer Slides

$30-$120

per pair

Taps and Mixers

$150-$800

each

Outlet covers and switches

$8-$25

each

Light Switches

$15-$45

each

Power Points

$25-$60

each

Bathroom Specific Hardware

  • Shower screen hinges and handles
  • Toilet roll holders and towel rails
  • Hooks and bathroom accessories
  • Mirror mounting hardware
  • Ventilation fan and controls
  • Waterproof light fittings
  • Old waterproofing membrane

Older homes in Melbourne’s South East often need infrastructure improvements to meet current standards.

Electrical Upgrades


New circuit installation

$300-$600

Switchboard Upgrade

$530-$1,500

RCD Protection

$200-$400

Additional power points

$150-$300

each

Exhaust fan installation

$250-$500

Plumbing Infrastructure


New water supply lines

$800-$1,500

Waste pipe replacement

$600-$1,200

Water pressure booster

$800-$1,500

Hot water system upgrade

$1,200-$3,500

Common Infrastructure Surprises

Older homes may have: asbestos materials requiring specialist removal, outdated electrical not meeting current safety codes, galvanized pipes needing replacement, or inadequate structural support requiring engineering.

Coordinating multiple trades and ensuring quality work requires professional management.

Professional Services


Building designer/architect

$2,00-$5,000

Engineering reports

$800-$2,000

Project management

10%-15%

of total cost

Interior Design Consultation

$1,000-$3,000

Even with careful planning, renovations uncover unexpected problems.

Common Unforeseen Costs


  • Structural damage from water leaks
  • Asbestos in unexpected locations
  • Electrical or plumbing not to code
  • Foundation or substrate issues
  • Lead paint requiring specialist removal
  • Termite damage

RenoWarriors Recommendation

Always budget an additional 15-20% for contingencies. This isn’t pessimism – it’s realistic planning that prevents project delays and stress when issues arise.

For a typical Melbourne SE bathroom renovation in 2025:

Complete Cost Breakdown


Construction work

60-70% ($18,000-$28,000)

Materials and Fixtures

20-25% ($6,000-$10,000)

Permits and fees

3-5% ($1,000-$2,000)

Removal and Disposal

5-8% ($1,500-$3,200)

Hardware and small items

3-5% ($1,000-$2,000)

Contingency

15-20% ($4,500-$8,000)

Total realistic budget

$32,000-$53,200

How RenoWarriors Handles Transparency

We provide detailed quotes that include all foreseeable costs. Our project managers explain each line item so you understand exactly what you’re paying for and why it’s necessary.

Contact Us Now

Get a Transparent, Detailed Quote

No hidden surprises. No budget blowouts. Just honest, upfront pricing for your renovation.

Similar Posts