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Tankless Diagnostic
Flat Diagnostic Fee · $149
Tankless Diagnostic costs $149 out-the-door at Insider Plumbing in North Phoenix and the North Valley, Arizona (flat diagnostic fee). That price includes parts and materials with our posted 25% markup and labor. Prices verified Nov 12, 2026; final price confirmed after photo review.
Error code on the screen? We'll diagnose the unit and give you a clear repair-vs-replace recommendation.
Price breakdown table
| Line | Qty | Unit price | Total |
|---|---|---|---|
| Parts and materials | 1 | $45.00 | $45.00 |
| Materials subtotal | $45.00 | ||
| Markup (25%)[Note from Tyler on what the markup covers] | $11.25 | ||
| Labor | $92.75 | ||
| Out-the-door total | $149.00 | ||
Prices verified Nov 12, 2026. Final price confirmed after photo review.
Diagnostic fee credited toward repair if performed same visit.
What's included
- Full diagnostic of tankless unit
- Combustion, water flow, and venting check
- Written recommendation with parts cost
- Diagnostic fee applied to repair if you proceed
Not included / estimate required for
- Repair parts and labor (priced after diagnostic)
Add-ons (when the service has them)
Content to come: optional add-ons with their own prices (e.g. water heater code upgrades), from the Special pricing rules task.
Lead form (pre-filled with this service)
[Form not connected yet. Success message: "We usually reply within 30 minutes."]
What happens after you book
What happens after you book
- Step 1
We reply within 30 minutes.
A real person, by text or phone.
- Step 2
We give you an arrival window of [confirm with Mike & Dan].
Not "sometime Tuesday".
- Step 3
We text when we're on the way.
With the name of the plumber coming.
- Step 4
You approve the price before any work starts.
The posted price, or a written quote for anything else.
FAQ for this service
Tankless Diagnostic: common questions
How much does Tankless Diagnostic cost in North Phoenix?
Tankless Diagnostic costs $149 out-the-door at Insider Plumbing in North Phoenix and the North Valley, Arizona (flat diagnostic fee). That price includes parts and materials with our posted 25% markup and labor. Prices verified Nov 12, 2026; final price confirmed after photo review.
What's included in the Tankless Diagnostic price?
The price includes: Full diagnostic of tankless unit; Combustion, water flow, and venting check; Written recommendation with parts cost; Diagnostic fee applied to repair if you proceed.
What isn't included in the Tankless Diagnostic price?
Not included, or priced separately after an estimate: Repair parts and labor (priced after diagnostic).
Is the posted Tankless Diagnostic price final?
The posted price is the out-the-door price for the standard job. Final price confirmed after photo review. If anything on site changes the scope, we quote it in writing before starting work.
Content to come: more questions and answers specific to this service.
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