Choosing a tile roofing company comes down to one thing most homeowners miss: tile almost never fails because the tile broke. It fails because the underlayment, flashing, or fastening beneath the tile was installed by a crew that treats tile like heavy shingles. A qualified tile roofing company proves tile-specific experience, carries the right license and insurance, follows the Tile Roofing Industry Alliance (TRI Alliance) installation manual, and hands you a written scope that names the underlayment, the fastening method, and the workmanship warranty. This guide is the vetting checklist that separates a real tile specialist from a general roofer who will learn on your roof.
What makes vetting a tile roofing company different from a regular roofer?
Vetting a tile roofing company means checking for skills a shingle crew never needs: reading a dead-load calculation, specifying the right underlayment, and setting tile by batten, direct-nail, or mortar depending on climate and pitch. Concrete and clay tile weigh roughly 600 to 1,100 pounds per roofing square (100 square feet), versus about 250 pounds for architectural asphalt. Get the vetting wrong and you inherit leaks, cracked tile from foot traffic, or a roof the structure was never designed to hold.
Tile is a system, not a surface. The tile itself can last 50 years or more, but the waterproofing underlayment underneath is what actually keeps water out, and it typically needs replacement decades before the tile does. A company that does not talk about the underlayment first is telling you it does not understand tile. For how tile stacks up against other materials on cost and lifespan, see our guides on clay tile roof cost and lifespan and terracotta roof tiles.
How do you verify a tile roofer’s experience and credentials?
Verify a tile roofer’s experience with three hard checks: proof of recent tile projects (photos of flashing and hip/ridge detail, not just glamour shots), an active state contractor license you confirm with the licensing board yourself, and current general liability plus workers’ compensation insurance verified by certificate direct from their carrier. For tile specifically, ask whether the company or its lead installers are trained under the TRI Alliance installation manual, the industry standard for concrete and clay tile.
Do not accept a business card as proof of anything. Roofing is a high-injury trade, which is why workers’ compensation matters: if an uninsured worker is hurt on your property, liability can land on you. Confirm the license number against your state board (California’s C-39, Florida’s certified roofing contractor license, and similar). A physical business address, not just a P.O. box, is a baseline signal that the company is rooted locally and answerable after the job.
The tile-specific vetting checklist
- Underlayment spec named in writing. A quality tile job uses a high-temperature self-adhered or two-ply underlayment, not a single layer of #30 felt. Ask which product and how many layers.
- Fastening method matched to your climate and pitch. Direct-nail, batten-set, or foam/mortar. In high-wind and hurricane zones the fastening schedule is code-driven, not optional.
- Structural dead-load confirmation. On a re-roof from a lighter material, the company should confirm the framing can carry tile weight, and involve an engineer if it cannot.
- Broken-tile and foot-traffic protocol. Ask how they walk the roof during install and repair without cracking tile, and whether they stock matching replacement tile.
- Flashing and penetration detail. Valleys, headwall, and pipe penetrations are where tile roofs leak. Ask to see photos of their flashing work.
- TRI Alliance manual adherence. The installation standard for the region and tile type should be named, not hand-waved.
What questions should you ask a tile roof installation company?
Ask a tile roof installation company the questions that force tile-specific answers, not generic reassurance. The goal is to hear whether they think in systems (underlayment, fastening, flashing, load) or just in “tiles on a roof.” A specialist answers these fast and in detail. A generalist stalls or deflects.
- How many tile roofs did you install in the last 12 months, and can I see two from the last year?
- Which underlayment do you spec under tile, and how many layers?
- Is my fastening method direct-nail, batten, or mortar-set, and why that one for my pitch and wind zone?
- Have you confirmed my roof structure can carry tile weight?
- What is your workmanship warranty, in years and in writing, and how does it differ from the manufacturer’s material warranty?
- Do you stock or source matching replacement tile for future repairs?
- Who is the on-site foreman, and are the installers your employees or subcontractors?
For the broader hiring process that applies to any material, our 15-point roofing contractor vetting checklist and 21 questions to ask before you sign layer in the universal checks. Use those alongside the tile-specific questions above.
Specialist tile company vs general roofer: what actually differs
A tile roof specialist and a general roofing company can carry the same license and both hang tile, but they diverge on the details that decide whether the roof lasts 50 years or leaks in five. The table below shows where the real gaps show up during vetting. Treat any “we do it all” answer to a tile-specific question as a flag, not a strength.
| Vetting point | Tile roof specialist | General roofer without tile focus |
|---|---|---|
| Underlayment spec | Names product and layer count for tile | Defaults to standard felt or “code minimum” |
| Fastening method | Chooses direct-nail, batten, or mortar by pitch and wind zone | Uses one method for every roof |
| Structural load | Confirms framing carries 600 to 1,100 lb/square | Rarely raises weight at all |
| Repair support | Sources matching replacement tile | May not stock or match your tile profile |
| Recent portfolio | Multiple tile jobs in the last year | Mostly shingle work, occasional tile |
| Workmanship warranty | Written, tile-specific, multi-year | Verbal or generic |
What red flags mean you should walk away?
Walk away from any tile roofing company that pressures you to sign fast, demands a large upfront deposit, or cannot name the underlayment it will install. These are the same storm-chaser and lowball tells that plague all roofing, sharpened by tile’s higher cost and complexity. A legitimate tile company is busy, books out, and does not need a same-day signature.
- Large upfront payment. A deposit is normal; paying most of the job before work starts is not. Tie payments to milestones.
- Verbal-only quote. If materials, underlayment, fastening, timeline, and warranty are not in writing, they are not promised.
- No physical address or license number. A P.O. box and a cell phone are not a company you can hold accountable in three years.
- Bid far below the others. On tile, a lowball usually means thin underlayment, skipped flashing, or subcontracted crews cutting the labor that tile demands.
- Vague on tile specifics. Deflecting the underlayment or fastening question is the clearest tell you are hiring a shingle crew.
For the full pattern of contractor scams and how the pressure playbook works, see our breakdown of 12 red flags a roofing contractor will burn you.
How should you compare tile roofing quotes?
Compare tile roofing quotes on scope, not just the bottom-line number. Get at least three written bids and line them up on the items that actually move price and quality: underlayment product and layers, fastening method, flashing and penetration detail, tear-off and disposal, structural work if any, and the workmanship warranty term. The cheapest number often hides the thinnest underlayment, which is the exact layer that determines when your tile roof starts leaking.
Read every quote as a scope document. Two bids that look far apart on price are often just describing different jobs. When one quote skips the underlayment upgrade or the extra flashing detail, it is not cheaper, it is less roof. Our guide on how to read, compare, and negotiate three roofing bids shows the line items to weigh and where bids diverge.
FAQ
How do I know if a roofing company can actually install tile?
Ask for two tile jobs completed in the last year with photos of the flashing and hip/ridge detail, confirm the crew is trained under the TRI Alliance installation manual, and check that they name the underlayment product in writing. A real tile company answers these in detail; a shingle crew moonlighting on tile deflects to reviews and price instead of specifics.
Do tile roofers need a special license?
In most states a tile roofer needs the same contractor license as any roofer, such as California’s C-39 or Florida’s certified roofing contractor credential, rather than a tile-only license. The real differentiator is voluntary tile training through the TRI Alliance and a documented track record of tile installs, since licensing alone does not prove tile-specific skill.
What is the most important thing to check when hiring a tile roofer?
The underlayment specification. Tile itself can outlast the underlayment beneath it by decades, and nearly all tile roof leaks trace to the waterproofing layer, not the tile. A company that names a high-temperature or two-ply underlayment in writing understands tile as a system. One that defaults to a single layer of standard felt likely does not.
Why are tile roofing quotes so different from each other?
Tile quotes diverge mostly on hidden scope: underlayment quality and layer count, fastening method, flashing detail, and whether structural reinforcement is included. A bid can look cheaper simply because it specifies less roof. Compare at least three written quotes line by line on those items rather than on the headline price.
Should I hire a tile specialist or a full-service roofing company?
Either can work if they prove tile-specific experience, but the burden of proof is higher for a full-service company that mostly installs shingles. Ask for recent tile jobs, the underlayment and fastening spec, and a written workmanship warranty. If a full-service roofer answers those as confidently as a dedicated tile crew, the specialist label matters less than the evidence.
Reviewed by The Roofing Brief Team. Last reviewed July 2026.