Tile Roof Underlayment Replacement Cost in Phoenix (2026): The Roof Under Your Roof
The most misunderstood roof in Arizona is the concrete tile roof. Homeowners see 50-year tile and assume the roof is fine; the part that actually keeps water out is a layer of felt underneath that gives up somewhere between year 15 and year 25 in this heat. Here is what replacing it costs in the Valley and how to tell an honest bid from an upsell.
By Jason Green · Roofing & Gutters · Published August 12, 2026 · 9 min read
What the job is
A tile underlayment replacement — a 're-felt' or 'lift and relay' — means the crew carefully removes and stacks your existing tile, tears off the failed underlayment, inspects and repairs the decking, installs new underlayment with new flashing, valley metal and boots, then relays the original tile and replaces whatever broke in handling.
You keep the tile you already own, which is both cheaper and often necessary — many Valley tile profiles from the 1990s are discontinued, and matching them is harder than paying for the labor.
2026 Phoenix pricing
A re-felt on a typical 2,000 square foot tile roof runs $11,000 to $22,000 depending on pitch, tile weight, complexity and how much decking is bad. Two-story homes and steep pitches push toward the top.
All-new concrete tile runs $22,000 to $42,000 and is the right call only when the existing tile is broadly failing, when you are changing profile with HOA approval, or when breakage rates on lift-and-relay would be extreme (some older lightweight tiles shatter when handled).
Underlayment choices
The old standard was 30-pound felt, sometimes doubled. Modern options are synthetic underlayments and self-adhered SBS-modified membranes, which handle Valley heat far better and typically carry longer warranties.
Ask what is specified by name and weight. On a roof where deck temperatures hit 160 degrees, the difference between an entry-level felt and a high-temperature self-adhered membrane is a decade of service life for a modest cost increase.
Line items to require in the bid
Tile breakage allowance: how many replacement tiles are included, and what a match costs beyond that. Decking: per-sheet pricing found after tear-off, usually $85 to $150. New flashing, valley metal, pipe boots and bird stops rather than reused.
Also: who pulls the city permit, whether the bid covers one section or the whole roof, debris haul-off, and the workmanship warranty length. Ten years on labor is common from established Valley companies.
Verify before you sign
Arizona licenses roofers through the Registrar of Contractors. Look up the ROC number, confirm it is active and correctly classified, and read the complaint history — that record is public and it is the fastest quality filter you have.
Licensed contractors are covered by the Residential Contractors'' Recovery Fund. Unlicensed ones leave you with no recourse on a five-figure job.
Typical cost ranges
| Tile underlayment replacement (2,000 sq ft) | $11,000 - $22,000 |
| New concrete tile roof | $22,000 - $42,000 |
| Replacement tiles, per tile | $3 - $12 |
| Decking replacement, per sheet | $85 - $150 |
| Small tile repair (slipped or broken tiles) | $400 - $1,100 |
Ranges are general estimates gathered from homeowner-reported quotes, not an offer or a quote for your project.
Common questions
How long does tile roof underlayment last in Phoenix?
Typically 15 to 25 years depending on the material and roof temperatures, while the concrete tile itself lasts 50 years or more.
How much does it cost to re-felt a tile roof in Phoenix?
$11,000 to $22,000 on a typical 2,000 square foot roof in 2026, including lifting and relaying your existing tile.
Do I need all new tile?
Usually not. Most Valley tile is reused. New tile makes sense when the existing tile is failing broadly or you are changing profile with HOA approval.
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