How to Quote a Bathroom Renovation: Line-by-Line Breakdown

Why Bathroom Renos Need a Detailed Quote

Bathroom renovations are one of the most common — and most misquoted — residential projects. There are more trades involved than most clients realize (plumbing, electrical, tile, carpentry, painting), and hidden conditions behind walls can blow up a thin estimate fast. A detailed, line-by-line quote protects your margin and sets the right expectations with the homeowner from day one.

This guide walks through exactly what to include in a bathroom renovation quote, with realistic price ranges you can adjust for your market. Whether you're a GC running the whole job or a specialty contractor handling one piece, this structure works.

Scope: What to Include in a Bathroom Reno Quote

A typical full bathroom renovation covers these categories. Not every job includes all of them — tailor to the project.

1. Demolition & Removal

• Remove existing vanity, toilet, tub/shower
• Strip tile from walls and floor
• Haul-out and dump fees
• Typical range: $800–$2,500 depending on bathroom size and scope

Tip: Always quote demo as its own line item. Clients underestimate how much labor goes into tearout.

2. Plumbing Rough-In & Fixtures

• Rough-in for new fixture locations (if layout changes)
• Supply and install toilet, vanity faucet, shower valve/trim
• Shut-off valves and supply lines
• Typical range: $1,500–$4,500 depending on whether layout changes

If you're subbing out plumbing, show it as a line item and add your markup (see the markup guide for typical percentages).

3. Electrical

• GFCI outlets (code requirement near water)
• Exhaust fan (vented to exterior)
• Light fixtures and switches
• Typical range: $600–$2,000

4. Waterproofing & Substrate

• Cement board or Kerdi membrane in wet areas
• Waterproofing membrane on shower walls and floor
• Typical range: $400–$1,200

This is the line item most DIYers skip and most callbacks come from. Call it out explicitly — it shows you know what you're doing.

5. Tile & Flooring

• Floor tile (supply and install, including thinset and grout)
• Shower wall tile
• Accent or niche tile
• Typical range: $1,500–$5,000+ depending on tile selection and layout complexity

6. Vanity, Countertop & Mirror

• Vanity cabinet (supply and install)
• Countertop with sink cutout
• Mirror or medicine cabinet
• Typical range: $800–$3,000

7. Paint & Trim

• Prime and paint walls and ceiling (moisture-resistant paint)
• Base trim and door casing
• Typical range: $400–$1,000

8. Accessories & Final Touches

• Towel bars, toilet paper holder, robe hooks
• Shower door or curtain rod
• Typical range: $200–$800

9. Permits & Inspections

• Building permit (if required — usually yes for plumbing/electrical changes)
• Typical range: $150–$500

Structuring Your Quote

Group line items by trade or phase (demo, rough-in, finish). For each line, include:

• Description of work
• Materials (specify allowances for client-selected items like tile)
• Labor
• Line total

A clear structure makes your quote scannable. Homeowners compare quotes side by side — the one that's easiest to read usually wins. For more on quote structure, see how to write an estimate that wins the job.

Common Gotchas That Blow Up Bathroom Quotes

Hidden Water Damage

You won't know what's behind the walls until demo. Include a contingency line item (5–10% of project total) or a clause that states additional work from hidden damage is billed separately. Be upfront: clients respect honesty more than a surprise change order.

Permit Costs & Timeline

Some municipalities require permits for any plumbing or electrical work. Factor in the cost and — more importantly — the timeline. A permit that takes two weeks to approve delays the whole job.

Client-Supplied Materials

If the homeowner is buying their own tile or fixtures, specify an installation-only price and note that you're not responsible for material defects or shortages. Include a deadline for materials to be on-site.

Scope Creep

Bathrooms are small rooms with big opinions. "While you're in there, can you also…" is inevitable. Your quote should clearly state what's included and what's not. A line that says "Additional work beyond this scope will be quoted separately" saves you.

Sample Quote Summary

Here's what a mid-range full bathroom renovation quote summary might look like:

• Demolition & Removal: $1,500
• Plumbing Rough-In & Fixtures: $3,200
• Electrical: $1,100
• Waterproofing & Substrate: $800
• Tile & Flooring: $3,500
• Vanity, Countertop & Mirror: $2,000
• Paint & Trim: $700
• Accessories: $400
• Permits: $300
• Project Total: $13,500

Your numbers will vary by market, materials, and complexity. The point is the structure — every dollar is accounted for, and the client can see exactly where it goes.

Frequently Asked Questions

How much does a typical bathroom renovation cost?

A full bathroom renovation typically runs $8,000–$25,000 depending on scope, materials, and market. Mid-range projects with standard finishes usually land in the $12,000–$18,000 range. High-end or master bath remodels can exceed $30,000.

Should I include a contingency in my bathroom quote?

Yes. A 5–10% contingency for hidden conditions (water damage, outdated plumbing, mold) is standard. You can include it as a line item or note it in your terms. Either way, set the expectation before demo starts.

How do I handle client-supplied materials?

Quote labor only for those items. Specify that the client is responsible for ordering correct quantities, delivery timing, and returns. Include a deadline for materials to be on-site before the install phase.

What's the best way to quote subcontractor work?

Get a fixed price from your sub, add your markup (typically 15–25%), and include it as a line item under the relevant section. For more on markup, see what markup should contractors charge.

How long does a bathroom renovation take?

Most full bathroom renovations take 2–4 weeks for a crew of 2–3. Add time for permits, material lead times, and client decisions. Include a timeline estimate in your quote — clients appreciate knowing what to expect.

Want to skip the manual work? Renoz's AI quote generator builds itemized bathroom renovation quotes in minutes. Describe the project, review the line items, and send a professional estimate — free to start.