Tile Roof Leaking in St. George? Re-Felt vs. Full Replacement

Your tile roof looked fine for twenty years. Then a July monsoon cell sat over your neighborhood for forty minutes, and now there's a brown ring on the bedroom ceiling. Most people's first thought is that the whole roof is shot and they're looking at a $40,000 bill.

Usually they're not. On most tile roofs in St. George, the tile itself is fine. What's failing is the layer underneath it, and that's a very different problem with a very different price tag. This post walks through how to tell what's actually going on, when a re-felt makes sense, when it doesn't, and the two mistakes that cost homeowners the most money every monsoon season.

The Short Answer

If your tile roof is 20 to 25 years old, the tiles are in good shape, and the leak is coming from worn-out underlayment, a re-felt is almost always the smarter move. We pull the tile, replace the underlayment and flashing, and put your original tile back. You get a new waterproofing system for roughly half the cost of a full tile replacement. If you've already looked at what a full roof replacement costs in St. George, that difference is real money.

If the tiles themselves are cracking, crumbling, or discontinued with nothing left to match, or if the decking underneath has real structural damage, full replacement starts to make sense.

And if there's one leak in one spot and the rest of the underlayment is healthy, neither of those is the answer. You need a repair.

Age alone is a reason to get the roof looked at. It is not a reason to replace it.

Why Tile Roofs Leak When the Tile Looks Fine

Here's the part most homeowners never get told. Tile is not the waterproofing on a tile roof. Tile is the armor. It sheds most of the water and takes the beating from sun and hail. The actual waterproof layer is the underlayment underneath it, and that layer does the real work every time water gets past the tile, which it does on every tile roof in every storm.

Concrete and clay tile can last 50 years or more. The underlayment under it usually doesn't make it past 20 to 30 here. Southern Utah is hard on it. The UV is intense, attic-side temperatures swing hard between day and night, and that daily expand-and-contract cycle bakes the felt until it gets brittle, cracks at the fasteners, and stops sealing.

So a 25-year-old tile roof isn't really a 25-year-old roof that needs to be thrown out. It's a 50-year roof with a 25-year waterproofing layer that has reached the end of its life.

That's why so many of the neighborhoods built in the late 1990s and 2000s are hitting this at the same time. Places like Coral Canyon, Green Springs in Washington City, Little Valley, and the bench neighborhoods in Santa Clara were built with similar tile on a similar schedule, so the underlayment is wearing out on a similar schedule too.

Not Every Tile Leak Means Old Underlayment

A lot of our calls lately have been leaks that showed up right after a storm. The storm gets blamed, and sometimes that's fair. But the storm is usually just what exposed a problem that was already there. Before anybody quotes you a re-felt or a new roof, they need to figure out which kind of leak you actually have.

A One-Year-Old Tile Roof That Leaked at the Valley

If your tile roof is only a year or two old and it's leaking, call the original installer before you call anyone else. Leaks that early are almost always workmanship, and that's what the installer's workmanship warranty is for. Get the response in writing.

The Three Kinds of Tile Roof Leaks

The only way to know which one you have is to lift tiles and look. You cannot diagnose underlayment from the driveway, and you can't diagnose it from a drone photo either.

When a Re-Felt Is the Smart Money

A re-felt is sometimes called a lift and relay. We take the tile off, replace the underlayment, renew flashing where it's needed, fix any bad decking we find, and reinstall your original tile. Here's how it stacks up against tearing everything off:

It's the move we lean toward when:

• The tiles are still solid, with no widespread cracking, flaking, or crumbling
• The decking is sound, aside from a few sheets we can swap out during the job
• The real problem is aging underlayment, not the tile
• Matching replacement tile is available, because some breakage during removal is normal on every job
• You plan to stay in the house or want another 20 to 30 years out of the roof

For a typical 2000s Coral Canyon home with its original concrete tile in good shape, a re-felt is about as good a roofing investment as you can make. The house looks exactly the same afterward, which keeps the HOA happy, and you've reset the clock on the part that actually fails.

Tile matching matters more than most people think. Some of the profiles and colors used in these neighborhoods 20 years ago are no longer made. A good roofer will check availability with manufacturers like Eagle Roofing Products and Westlake Royal before the job starts, not halfway through it.

When You Should Replace the Whole Tile Roof

A re-felt only works if the tile is worth putting back. We'll recommend a full replacement when:

• A large share of the tiles are cracked, brittle, or breaking as soon as they're handled
• The profile is discontinued and there isn't enough salvageable tile to finish the job
• There's widespread decking rot, sagging, or structural damage
• The cost of carefully removing and reinstalling old tile is getting close to the cost of new tile
• You want a different color, profile, or material, which will also need HOA approval in most of these communities

Older Green Springs roofs with a lot of breakage or an obsolete tile profile are where we see this most. In those cases it's worth getting a written comparison of both options side by side.

What a Re-Felt Costs Compared to Full Replacement

These are typical ranges for a residential tile roof in the St. George area, not a quote for your house. Size, pitch, number of valleys, tile breakage, and decking condition all move the number.

Typical Washington County market ranges for single-family homes. Every real number starts with a measured, photographed inspection.

For a deeper breakdown of what drives roofing prices here, including per-square pricing for every roof type, see our guide to roof replacement costs in St. George.

The Biggest Mistake: Waiting for the Monsoon to Tell You

If you know your tile roof is in that 20 to 25 year range, the worst time to find out the underlayment is done is during a July storm.

Here's why. When monsoon season hits, every roofer in Washington County gets slammed at once. Phones ring all day, schedules fill up for weeks, and the homeowners who called first get seen first. If your ceiling starts dripping in the middle of that rush, you might wait a lot longer than you'd like for someone to get on your roof. Meanwhile, water is sitting in your attic insulation and soaking into your decking, and a re-felt with a few bad sheets of plywood can turn into a re-felt with a lot of bad sheets of plywood.

The fix is simple. Get tile roofs over 20 years old inspected in the off-season, ideally fall or spring, so if work is needed it gets done on your schedule, at normal pricing, before the next monsoon.

The Second Mistake: Signing With a Door-Knocker After a Storm

After every big storm, out-of-town crews roll into St. George, knock on doors, and promise new roofs paid for by insurance. Some of them do decent work. Plenty of them don't. And almost all of them have the same problem: they're gone when the storm season ends.

That matters more on tile than on almost any other roof. Tile work is detail work. The valleys, flashing, and water paths have to be right, and when they're not, you find out months later, the way the homeowner in the story above did. If the crew that did your roof has left the state, getting them back to honor a workmanship warranty is a nightmare. Phone numbers stop working. The company name changes. You end up paying someone else to fix it.

There's also the insurance problem. Homeowners insurance is generally written to cover sudden damage, like a tile broken by hail or flashing torn loose by wind. Underlayment that wore out from 25 years of sun is wear and tear. A storm chaser who tells you insurance will cover a worn-out roof is setting you up for a denied claim, or worse, pushing you to sign something that hands your claim over to them. Our storm damage page covers how to tell the difference.

Before you sign with anyone, after a storm or not:

• Look up their contractor license on the Utah Division of Professional Licensing (DOPL) website
• Ask for a local address and how long they've worked in Washington County
• Get the workmanship warranty in writing and ask who honors it if the company closes
• Don't sign anything the same day, especially anything that involves your insurance claim

What a Real Tile Roof Inspection Should Look Like

If someone tells you that you need a re-felt or a new roof without lifting a single tile, get a second opinion from a local St. George roofer. A proper tile inspection should include:

• Lifting representative tiles on several different slopes, not just one
• Photos of the underlayment, flashing, battens, and decking, which you should get to keep
• A close look at valleys, wall flashing, and roof penetrations, since that's where most leaks start
• An honest call on whether you're looking at a repair, a re-felt, or a replacement

And when you get the estimate, ask for:

• The exact underlayment product being installed and its warranty
• How tile breakage is handled and what's included in the price
• Whether matching replacement tile has been confirmed as available
• A written comparison of the re-felt scope and the full replacement scope, if both are on the table

That last one tells you a lot about a roofer. Someone who's willing to show you the cheaper option next to the expensive one is someone who's trying to solve your problem, not just close a bigger sale.

Frequently Asked Questions