Architectural shingles
Metal roofing
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across San Marino
Roof repair in San Marino usually involves one of three things: a leak that’s already staining plaster, missing or cracked tile you’ve spotted from the driveway, or the cautious instinct to get ahead of the next winter storm. We respond to San Marino calls quickly, and most repairs are quoted the same week. Ruben Acosta founded Sunrise Roof Repair to serve exactly this kind of neighborhood: older, custom-built homes where the right fix matters more than the fastest one. If you’re looking at a water stain or a slipped tile right now, call (877) 752-3460 and we’ll walk you through what we’re likely to find before we even set foot on the roof.

Why Sunrise Roof Repair Is San Marino’s Preferred Roof Repair Company
San Marino isn’t a tract-home market. The streets off Huntington Drive and around Lacy Park hold century-old estates, Spanish Colonial Revivals, and mid-century customs that each roof differently. We’ve repaired roofs on Canterbury, Oak Grove, and Monterey Road long enough to know that the problem is rarely what the homeowner first notices. A stain on the living room ceiling usually traces to a shaded north slope, not the visible south side. That local pattern recognition is why San Marino homeowners call us back for the next issue, and why they refer us to neighbors.
Styles & brands we work with






Commercial Roof Repair in San Marino
Commercial Roof Repair in San Marino tends to involve buildings most people don’t think of as commercial: the low-profile office suites near Huntington Drive, the club and school auxiliary structures, and estate outbuildings like pool houses and garages with flat or low-slope sections. The work is different from residential tile. We’re usually dealing with modified bitumen, torch-down, or built-up roofing that needs patching around drains, vents, and curbs. A straightforward patch on a flat section runs $450 to $950. Replacing a deteriorated drain flashing or re-seaming a split in the field can push a job to $1,200 or more depending on access. Ruben Acosta’s crew carries the materials for both flat and tile work, so we’re not improvising on a commercial call.
Flat and Low-Slope Repairs
Flat roof repairs in San Marino fail predictably. The membrane splits at scuppers and drain collars first, then water works into the seams and finds the sheathing. We cut back the damaged area, inspect the decking, replace any rot, and re-seam with the same material family. No shortcuts. The fix either stops water or it doesn’t.
Estate Outbuildings and Pool Structures
Many San Marino properties have a pool cabana, garage apartment, or garden pavilion with a flat roof that’s gone unattended for years. These are easy to defer because they’re not over a living room. But rot spreads under membrane and the repair grows. We’d rather catch it at the patch stage than the replacement stage.
Roof Leak Repair in San Marino
Roof Leak Repair in San Marino almost always starts with a mystery. The tile looks intact. The roof passed a casual visual check. Yet water somehow reached the dining room ceiling. In our experience, the culprit on the 1910s through 1930s homes here is the underlayment, especially on the north-facing slopes where the oak and deodar canopy keeps the roof shaded long after the rain stops. A typical leak investigation in San Marino runs $225 to $395. If the leak is straightforward, like a failed vent boot or an open flashing seam, repairs usually finish between $325 and $700. If the underlayment has rotted under a section of tile, you’re looking at $850 to $1,900 to lift tile, replace the barrier, and reset everything.
Underlayment and Deck Rot
This is the repair that separates San Marino from nearby cities. Under mature trees, the shaded slopes never fully dry. The felt or synthetic underlayment under the tile stays damp. Years before the barrel clay tile shows any sign, the underlayment is gone and the sheathing is starting to soften. Water rides directly onto plaster. By the time you see a stain, the hidden damage is already extended.
Chimney and Valley Flashings
Flashing failures are the other common leak source. San Marino’s period homes have chimneys, dormers, and complicated valley intersections that test old metal. We replace flashing with the right material for the surrounding system, step-flash each shingle or tile course properly, and seal the counter-flashing so water stays out for another two decades.
Let me tell you about a Canterbury Road call that shows how this plays out. A 1925 Spanish Colonial Revival with original barrel clay tile had a persistent ceiling stain that two previous contractors had blamed on the tile. Our crew lifted the tiles on the shaded north slope and found disintegrated underlayment and dry-rotted fascia behind a failed drip edge, all hidden because the tile itself looked intact. We replaced the underlayment, added ice and water shield in the valleys, and installed new flashing without disturbing the historic roofline. The ceiling stain never returned. That’s the difference between looking at a roof and actually diagnosing one.

Trusted Brands We Service in San Marino
We install and repair products from seven manufacturer brands, including GAF, CertainTeed, and Owens Corning, so we’re not tied to a single supplier’s material line. When you need tile replacement or underlayment work on a Spanish Colonial Revival, that flexibility matters. We stock common parts locally and can usually have brand-specific materials staged within a couple of days for San Marino projects. If your roof calls for a specific profile or color match, we’ll order that exact product, not whatever is closest on the truck.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in San Marino Homes
San Marino’s housing stock is older, custom, and heavily treed. Here’s what we actually run into on a weekly basis:
- Shaded north slopes with invisible rot. The oak and deodar canopy on streets like Oak Grove keeps north slopes damp year-round. The tile looks fine, but the underlayment underneath has been decomposing for years, and the first indoor sign is a water stain on an interior wall or ceiling.
- Blown-out south slopes from prolonged UV. The sun side of a San Marino roof faces relentless Mediterranean heat with long rainless stretches. Barrel tile cracks under thermal stress, and the exposed underlayment around the edges shrinks and splits, letting the next winter storm find an entry point.
- Aging flashings and fascia failure. The original metal on 1920s and 1930s homes is often past its useful life. We see step flashing that’s blown out, drip edges that rusted through, and fascia boards behind them with dry rot. The trigger is usually the first strong storm of the season.
- Permit-driven code surprises. Once we open a roof section in San Marino, what we find underneath can change scope. Outdated electrical runs, undersized framing, or unsafe decking all have to come up to code before we close it back up. We handle this with written allowances and pre-approved change orders, so you’re never surprised by the invoice.
Pricing for Roof Repair in San Marino, CA
Roof repair pricing in San Marino reflects the age of the housing stock and the complexity of the work. Minor leak repairs, like a failed vent boot or a single flashing seam, run $325 to $700. Shingle or tile replacement runs $450 to $1,100 depending on how far we need to go up the slope and how the access works. Underlayment replacement, which is more common here than almost anywhere in the area, runs $850 to $1,900 for a typical section. Full flashing replacement around a chimney or valley runs $1,200 to $2,600. We provide free estimates with written line-item pricing, and if the job is under permit, we’ll spell out the allowance for code-triggered surprises before we start.
We Also Serve Cities Near San Marino
Our service area reaches beyond San Marino into the surrounding communities: San Gabriel, East San Gabriel, Alhambra, and East Pasadena. The same crew, the same seven brand lines, and the same approach: Roof Repair that matches the home, not the truck inventory. If you’re in one of those neighborhoods, call the same number for service.
Serving San Marino, CA — Our Local Coverage Area
We’re based in the San Marino 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 Repair in San Marino
Because the water barrier underneath the tile has failed. On shaded slopes, underlayment breaks down years before the visible tile shows any damage. When the next storm hits, water passes straight through the gaps behind the tile and onto the wood decking. If you’ve got a stain but clean-looking tile, call (877) 752-3460 and ask for an underlayment inspection. It’s the single most common repair we do in San Marino.
It can. San Marino’s building department requires permits for roof work that goes beyond simple repairs or like-for-like replacement. When a repair exposes outdated wiring, undersized framing, or non-compliant decking, the city may require those items to be brought up to current code before the roof can be closed. We handle this by writing allowances into the contract and getting written approval before any code-driven work begins.
We start by identifying the tile profile, maker if possible, and color. San Marino is home to many original barrel clay tile roofs, and some profiles are still made today. Where an exact match isn’t available, we source the closest compatible profile and blend new tiles with aged ones so the repair doesn’t stand out. We also inspect the underlayment whenever we lift tile, because that’s usually where the real problem lives.
A square is 100 square feet of roof area. Roof repairs are priced by the square or by the linear foot for flashing. When we quote a job, we measure the damaged area in squares and give you a line item that shows exactly how much roof we’re working on. This matters because some contractors quote by the hour or with a vague “repair area” number. Our quotes tell you precisely what’s being done and for how much.
We stop work, document what we found, and give you a written change order before we do anything else. Hidden damage is common on San Marino roofs, especially under tile where rot runs unseen. Our original contract includes an allowance for the most likely overages, so when we open a section and find rotted decking, you’ll already know the range of additional cost. We never proceed without your signed approval.
Written by Ruben Acosta, Owner at Sunrise Roof Repair, serving San Marino since our first repair in the neighborhood.