Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Installation Across San Clemente
Roof installation in San Clemente is a tile trade. The city’s Spanish Village by the Sea design standards, in place since 1925, steer nearly every roof toward clay or concrete S-tile, which means the work here is fundamentally different from the asphalt-shingle jobs that dominate inland Southern California. We know that difference. Our crews work San Clemente neighborhoods from Pier Bowl to Talega, and we understand that the real question on most local homes is not whether the tile looks good from the street, but whether the underlayment, decking, flashing, and mortar bedding underneath are doing their job. Call (743) 200-8347 for a written quote before any work starts.
Why Mercer Roofing Is San Clemente’s Preferred Roof Installation Company
Homeowners in San Clemente call us because we send a technician’s name and photo before they ever open the door. That matters when you live alone, when you have young kids at home, or when you simply want to know exactly who is walking up your driveway. Our people arrive in clean, marked uniforms and present a photo ID badge at the door. Every one of them is background-checked and identity-verified under the Threshold Verified standard. It is not a courtesy. It is the rule.
Grant Whitlock leads our team, and he holds every job to the same written standard: a price on paper before a single nail is driven, and a 365-Day Done Right Promise on every repair and installation. If the work is not right within a year, we make it right. That guarantee is included with every job, not sold as an add-on. San Clemente homeowners who have been burned by vague estimates and mystery crews tend to appreciate that the contract is specific and the person at the door is who we said they would be.
Roof Flashing Installation in San Clemente
Roof flashing installation in San Clemente is the part of the job that separates a roof that lasts forty years from one that leaks in four. Flashing is the metal – galvanized steel, copper, or lead – that directs water away from the places where the roof meets a wall, chimney, skylight, or another roofline. On San Clemente tile roofs, especially on the tight lots near the Pier Bowl where party walls are shared, flashing is often original to the house and well past its useful life. Salt-laden bluff air corrodes it. Old installation details leave it under-tiled. And when it fails, water gets into the wall before you see a stain on the ceiling.
Flashing installation in San Clemente typically runs $400 to $1,200 per penetration, depending on how much tile must be lifted and whether the existing flashing is copper or galvanized. Written into the quote, always.
Party-Wall Flashing and Step Flashing
On the tight lots common in San Clemente, where a Spanish Colonial Revival cottage sits inches from its neighbor, the flashing along a shared wall is the highest-risk joint on the roof. We pull tile, inspect the counterflashing, and tie new step flashing into the wall with the right sealants for marine air. When we replace flashing, we cut counterflashing into the mortar joint and seal it so water cannot wick behind it.
Chimney and Skylight Flashing
Chimney flashing on older San Clemente homes is frequently rusted through, especially on the ocean side of the stack. Skylights installed decades ago often sit on curb flashing that has lost its seal. We replace both with materials spec’d for coastal exposure and include the written material warranty with the repair.
TPO Roofing Installation in San Clemente
TPO roofing installation in San Clemente is the right call for flat or very low-pitch roof sections, which show up on additions, patios, garages, and a surprising number of mid-century cliff-side homes. TPO is a single-ply thermoplastic membrane, heat-welded at the seams, that reflects heat and handles standing water better than older built-up roofs. Near the coast, TPO also resists the salt air that eats through metal cap systems. It is not what most people picture when they think of San Clemente roofing, but on the right roof section it outperforms everything else.
TPO installation in San Clemente generally runs $9 to $14 per square foot for a fully adhered or mechanically fastened system on a residential deck, including insulation where needed. On a small flat section over a patio, expect to be in the $3,000 to $6,000 range for a complete job.
When TPO Makes Sense Over Tile
Tile is not practical on a true flat roof, and some San Clemente homes have flat sections hidden behind parapet walls. TPO is the cleanest modern answer. We install it with heat-welded seams rather than glue, which is the difference between a watertight membrane and one that peels in five years.
TPO Repairs and Recovers
If your existing TPO membrane is sound but showing age, we can recover it rather than tear it off, which keeps cost down and disposal out of the landfill. We inspect the insulation and decking first, because no amount of new membrane fixes rotted sheathing underneath.
Trusted Brands We Service in San Clemente
We install and repair tile and membrane systems from manufacturers that wrote the standards for the trade. That includes GAF, Atlas, and Boral, among others. We do not push house-brand materials we happen to get a deal on. We specify what the roof needs, then install it to the manufacturer’s published detail. For San Clemente homeowners that means a written material warranty from a company you have actually heard of, plus our own 365-Day Done Right Promise on the workmanship. We also keep common flashing profiles, tile-matching S-tile, underlayment rolls, and TPO membrane in local stock for faster response on San Clemente jobs.
Common Roof Installation Problems We See in San Clemente Homes
- Failed underlayment under intact tile. The tile on a San Clemente roof can look perfect from the curb while the felt or synthetic underlayment beneath it has turned to powder. We see this constantly on 1920s Pier Bowl cottages and 1970s hillside homes. The only fix is to lift tile, replace underlayment, and re-lay – which is a full roof installation, not a patch.
- Salt-air mortar erosion on ridge caps and hip tiles. The marine layer sits on bluff-top homes for hours every morning. The salt in that air eats the mortar bedding that locks ridge caps and hip tiles in place. Caps loosen, water gets under the tile, and the sheathing rots. Repointing is cheaper than a re-roof, but only if caught early.
- Low-pitch tile roofs with poor attic ventilation. Many San Clemente Spanish-style homes were built with minimal eave overhangs and no ridge vents. Marine moisture gets trapped in the attic, condenses on the underside of the sheathing, and rots the deck even while the tile above looks sound. We address ventilation as part of every full installation.
- Dense-lot staging and access failures. On tight San Clemente lots, a roof installation fails before it starts if the crew has nowhere to stage tile or the neighbor’s driveway gets blocked without a heads-up. We map access and parking before the quote, because it changes the labor and the schedule. Missed notice on a party-wall lot stalls permits and inspections.
Pricing for Roof Installation in San Clemente, CA
A full tile roof installation in San Clemente typically runs $18,000 to $45,000, depending on roof size, pitch, decking condition, and how much of the existing tile can be salvaged. A partial underlayment replacement with tile re-lay on a smaller home starts around $8,000 to $12,000. Flashing work runs $400 to $1,200 per penetration. TPO on a flat section runs $3,000 to $6,000. The big variable in San Clemente is sheathing: on a 1930s Pier Bowl cottage, expect some deck replacement, always priced in the written quote before we start. We never hand you a number and then change it when the roof comes off. The written price is the price. Call (743) 200-8347 to schedule a free estimate.
We Also Serve Cities Near San Clemente
Our Roof Installation crews work the coastal corridor from Dana Point down through San Juan Capistrano, and we regularly cover Ladera Ranch and Laguna Niguel for full tile and flashing jobs. Roof Installation in San Clemente remains our core coastal service area, where the tile mandate and bluff exposure demand a specialist, not a generalist.
Serving San Clemente, CA - Our Local Coverage Area
We’re based in the San Clemente area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Roof Installation in San Clemente
Because the tile is not waterproof. Clay and concrete tile are a rain screen, and the actual water barrier is the underlayment underneath. In San Clemente, between salt air and marine-layer moisture, that underlayment degrades long before the tile shows any sign of trouble. On a Pier Bowl cottage or a bluff-top home, the felt underlayment can be original to the house, from the 1930s or 1940s, and completely shot while the tile still looks beautiful from the street. The fix is to lift the tile, replace the underlayment and drip edge, and re-lay the tile. That is a full roof installation, not a patch. Call (743) 200-8347 for an inspection and a written quote – the estimate is free.
Yes, in practice. San Clemente’s Community Design Element has actively steered roofing toward clay or concrete S-tile in the Spanish Colonial tradition since the city was platted in 1925, and the city’s design review process discourages asphalt shingles on visible roof planes. The majority of homes in the city already carry tile, and replacing a tile roof with asphalt can trigger design review on many lots. What the city does not require is a specific underlayment, which is why we see such a wide range of material quality underneath the tile. If you are planning a roof installation in San Clemente, we can walk you through what your particular roof plane requires and what the local review process will ask for. Call (743) 200-8347 and we will come out, look at the roof, and put the options in writing.
It affects it directly in two ways: access and staging. A roof installation needs space for tile pallets, a debris chute or dumpster, ladder placement, and crew parking. On a tight lot near the Pier Bowl with no driveway and shared party walls, we often have to stage materials on a neighbor’s property with written permission, or coordinate a drop-and-go delivery schedule. That adds labor and time, and it is priced into the quote. If a lot is so tight that we need a crane or a conveyor to get tile onto the roof, that is a separate line item. Everything is written out before work starts, so you will see the access costs in the quote, not as a surprise after we show up. Call (743) 200-8347 and we will walk the site with you and price the job honestly.
Drip edge goes on first, nailed to the eave before the underlayment is rolled out, so water that runs off the underlayment drips into the gutter rather than behind it. Underlayment goes next, lapped with the slope so every seam sheds water, and run up the walls and penetrations. Flashing goes on last, before tile, stepped into the wall at every joint and sealed with the right product for marine air. Then the tile goes on top. On a San Clemente re-roof, if the existing underlayment was installed wrong – under the drip edge, or with the laps facing uphill – we strip it and start over. The order is not a style choice; it is the difference between a roof that drains and one that channels water into the attic. Call (743) 200-8347 if you want us to come look at what is under your tile.
Salt air. The mortar bedding that holds ridge caps and hip tiles in place is exposed to concentrated salt and moisture on any home within a few hundred yards of the bluff, and the daily marine layer cycle breaks the mortar down faster than it would break down three miles inland. Once the mortar erodes, water gets in, frost and daily heating cycles loosen the caps further, and the caps start to slide or break. The repair is to remove the loose caps, clean the joint, repoint with a mortar spec’d for coastal exposure, and reset the tile to match the existing profile. If the underlying underlayment is also compromised, that is part of the same job. Call (743) 200-8347 for an exact quote – estimates are free, and the written price is the price.
If you are ready to talk about a roof installation in San Clemente, call (743) 200-8347. A live person answers, 24/7. You will get a written quote before any work starts, a crew that arrives in uniform with photo ID, and a 365-Day Done Right Promise on every job.
Written by Grant Whitlock, Owner at Mercer Roofing, serving San Clemente as part of the Threshold Group family founded in 2000.