Quick price snapshot
| Your Problem | What It’s Called | Ironclad Price | Austin Range | Ask Why If Over |
|---|---|---|---|---|
| Slab leak confirmed, need pipe rerouted | Slab leak reroute (through attic/walls) | $3,500 | $2,000-$5,500 | Over $6,000 without showing you the plan |
What this price usually includes
This page isolates Ironclad’s published number for slab leak reroute (through attic/walls) so you can compare one quote against the Austin market before you book anyone.
At Ironclad, the published reference point is $3,500. The broader Austin range we track is $2,000-$5,500. If you are being quoted over $6,000 without showing you the plan, the burden is on the company to explain the access problem, code upgrade, emergency timing, or scope change that pushes it there.
What moves the number up or down
Final pricing usually changes for one of four reasons: access, material grade, code-driven add-ons, or bundled work discovered after diagnosis. A clean quote should spell out which of those is driving the difference instead of hiding it behind vague line items.
Detailed breakdown
Ironclad price: $3,500 | Austin range: $2,000–$5,500
A slab leak has been confirmed. Instead of jackhammering through the foundation to repair the specific pipe under the slab (spot repair), the plumber abandons the damaged under-slab pipe and runs a new line through the attic, walls, or both to bypass it entirely. The old pipe is capped off and left in the ground.
Where your $3,500 goes at Ironclad (single line reroute, hot or cold supply):
You pay: $3,500.00
Credit card processing: - $105.00
Net to company: $3,395.00
Materials (PEX or copper pipe,
fittings, hangers, insulation,
drywall patch materials): - $250 (7%)
Technician labor (1-1.5 days): - $500 (14%)
Permit: - $100 (3%)
Truck / equipment: - $125 (4%)
Overhead: - $750 (21%)
Company profit: $1,670 (48%)
This is one of the highest-margin jobs in residential plumbing. The materials are cheap. The labor is moderate. The expertise to plan and execute a reroute correctly — routing through an attic in Austin summer heat, maintaining proper slope, insulating against freeze risk, tapping into existing lines at the right points — is what you’re paying for.
What makes it cost more than $3,500:
- Multiple lines need rerouting. If both hot and cold supply lines under the slab are failing, each reroute is a separate run. Two reroutes: ~$5,500-$7,000.
- Two-story home. Running through the attic of a two-story home and dropping down through walls to first-floor fixtures is more complex. Adds $500-$1,500.
- Long runs. A home where the water heater is in the garage and the affected fixture is in a master bath on the opposite side of the house requires a long pipe run through the attic. Material and labor scale with distance.
Reroute vs spot repair vs full repipe — how to decide:
| Scenario | Best Option | Typical Cost |
|---|---|---|
| Single leak, isolated failure, rest of pipe is healthy | Spot repair (through slab) | $1,500–$2,500 |
| Single leak, but pipe material is known to fail systemically (polybutylene, deteriorating copper) | Reroute the affected line now, plan for full repipe | $3,500 now + repipe later |
| Single leak in a hard-to-access location under slab | Reroute (avoids cutting slab) | $3,000–$4,500 |
| Multiple leaks in different locations, systemic pipe failure | Full repipe (abandon all under-slab lines) | $8,500–$15,000 |
| Drain line leak under slab (not supply) | Spot repair or reroute depending on severity | $2,000–$5,000 |
The important question to ask: “Why are you recommending [this option] instead of [cheaper option]?” A good plumber will explain: “The pipe is copper and the corrosion pattern suggests more leaks are coming in the next 1-2 years, so a reroute now prevents a second slab cut later.” A bad plumber will say: “This is what we recommend” without connecting the recommendation to your specific pipe condition.
How to compare this quote
Use this checklist before you approve the work:
- Does the scope clearly match slab leak confirmed, need pipe rerouted or is the company quietly selling a bigger job?
- Are they showing why the quote is above Over $6,000 without showing you the plan with photos, test results, or code notes?
- Are disposal, permit, restoration, and emergency premiums separated so you can see what is real and what is markup?
- If another option exists, did they quote it side by side instead of forcing one path?
If the answer is no, step back and compare against the full Austin plumbing price guide before approving anything.