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 Rialto
A new roof on a Rialto home has to do more than shed rain. It has to hold its ridge caps and shingle edges when a 70 mph gust comes ripping down from Cajon Pass, and it has to sit on decking that may have been cooking under 130°F attic heat since the Eisenhower administration. We scope every roof installation in Rialto, CA around those two facts before we ever quote a price. Most full tear-off and shingle installations on Rialto ranch homes run $14,500 to $26,000 depending on square count, decking repair, and low-slope sections. Standing seam metal typically lands between $32,000 and $52,000. Call (743) 200-8347 and we’ll walk the roof with you, write down what we find, and hand you a line-item price.
Mercer Roofing, your Roofing Company in Rialto, sends background-checked, photo-badged technicians to every job, and you’ll know who is coming before they arrive. Our crews serve Rialto locally, coordinated from the brand’s Inland Empire office. We are part of the Threshold Group family, founded in 2000, and held to the Threshold Verified standard on every visit.
Why Mercer Roofing Is Rialto’s Preferred Roof Installation Company
Rialto homeowners call us because we treat an old ranch roof as a decking and underlayment job, not a shingle swap. Grant Whitlock leads our installation crews with a simple rule: verify what is under the shingles before promising what goes on top. That matters here more than in Fontana or Bloomington, because the heat load in Rialto’s 1950s through 1980s tracts bakes organic felt until it crumbles. We find it on most pre-1990 teardowns. You should know that before you compare bids, because a roofer who does not check will quote you a number that cannot hold.
Every Mercer Roofing project starts with a written price. You see the scope, the materials, and the total before any work begins, and that price does not change unless we find decking rot and you approve the change in writing. Our 365-Day Done Right Promise covers every installation: if the work is not right within a year, we make it right. The promise is written into the paperwork, not implied.
We know Rialto’s housing stock. We know the flat-roofed rear additions on homes along North Riverside Avenue, the tract-age ranch layouts west of South Sycamore Avenue, and the scattered acreage parcels up toward the county line off West Randall Avenue. When we send a technician to your door, you get a name and a photo before the visit, and a photo ID badge at the door. For homeowners who are home alone, or with young kids, that is the difference between opening the door and hoping for the best.
Shingle Roof in Rialto
A Shingle Roof on a Rialto home is the most common installation we do, and it is also the one where the wrong fastening pattern gets exposed fastest. Most of the city’s housing stock is single-story, slab-on-grade ranch construction from the 1950s through the early 1980s. Those homes were built to a different wind standard than what the Cajon Pass corridor actually delivers. On a standard architectural shingle roof in Rialto, plan on $14,500 to $22,500 for a typical 1,400 to 1,900 square foot tear-off and replacement, including new felt or synthetic underlayment, starter strips, flashing, and ridge venting. More square count, decking replacement, or low-slope built-up sections push the number toward $26,000.
Wind-rated fastening and starter strips
The shingle brand matters less than how it is fastened. In Rialto, we install architectural shingles with a six-nail high-wind pattern and sealed starter strips as our baseline. That is not an upgrade. It is what the wind corridor demands. We have watched three-tab edges peel off roofs in Bloomington and Fontana during a Santa Ana, while the architectural fields we fastened properly stayed down.
Decking inspection and replacement
Before we lay anything, we tear off enough to see the decking. On a Rialto ranch home where the original organic felt has turned to powder, the sheathing underneath is often sun-bleached, checked, or rotting at the eaves. We replace bad decking with new OSB and tell you exactly what we found and what it costs before moving forward.
Standing Seam Metal Roof in Rialto
A Standing Seam Metal Roof in Rialto solves the wind problem at a structural level. The panels lock together along vertical seams and are mechanically fastened with concealed clips, so there is no shingle edge for a 70 mph gust to grab. For a typical Rialto ranch home, expect $32,000 to $52,000 depending on square count, tear-off of the existing roof, decking repairs, and whether the home has low-slope rear sections that need a different panel profile. The higher upfront cost buys a roof that shrugs off the pass winds and reflects a meaningful share of the valley’s 105°F summer heat.
Panel profile and heat reflection
We spec Galvalume or coated steel in 24-gauge standing seam, and on Rialto’s slab-on-grade ranches we often recommend a lighter finish that reflects more sun and keeps attic temperatures lower. That matters when your existing felt underlayment failed because of heat, not wind.
When metal makes sense over shingles
If you are on acreage with outbuildings, or you are tired of replacing ridge caps after every Santa Ana season, standing seam is worth pricing. We will give you a written line-item quote for both shingle and metal so you can compare numbers, not sales language.
Trusted Brands We Service in Rialto
We install and repair Roof Installation systems using GAF, Atlas, and Tamko shingle lines, and we keep local stock available for Rialto customers who need fast turnaround after a wind event. We also work with Boral, CertainTeed, Owens Corning, and IKO when a homeowner has an existing roof we need to match. For metal, we order panels cut to the specific roof dimensions we measure on site. If you are in Rialto and want a particular brand, tell us up front and we will price it in writing. No surprises on the invoice, and no brand you did not approve on the roof.
Common Roof Installation Problems We See in Rialto Homes
- Ridge caps and three-tab edges lifted by Cajon Pass gusts. The fastening pattern, not the shingle brand alone, decides whether the field stays down. On 70-plus mph days, a poorly fastened ridge cap becomes the first point of failure, and it pulls water in long before the next atmospheric river arrives.
- Aged built-up and rolled roofing on low-slope rear sections. The 1950s through 1980s ranch homes across Rialto often have a flat or near-flat rear addition finished with built-up or rolled roofing. That material ponds, blisters, and fails at the seams first. A heavy atmospheric river rain finds those seams before the steep shingle field ever leaks.
- Powdered organic felt underlayment exposing bare decking. On pre-1990s Rialto homes, the original organic felt has frequently desiccated to dust from attic temperatures that push past 130°F. A small wind loss means shingles come off and the sheathing underneath is essentially bare, so water gets in with the next rain.
- Homeowners discovering interior damage after the storm, not before. A few missing shingles looks cosmetic. It is not. Once the felt is gone and the decking is exposed, the first real rain sends water straight into the ceiling. By the time you see it on the drywall, the repair is a roof job plus an interior job.
Pricing for Roof Installation in Rialto, CA
Here are the numbers in plain English, because you should not have to guess. A full shingle tear-off and re-roof on a standard Rialto ranch runs $14,500 to $26,000. Standing seam metal on the same home runs $32,000 to $52,000. What moves the price: the number of squares (roof area in 100-square-foot units), how much decking has to be replaced, whether low-slope sections need built-up or modified bitumen work, and whether the home is on acreage with county permitting, well and septic setbacks, or outbuildings. We measure in squares so you can compare bids apples to apples. A written price comes with every estimate, and the estimate is free. Call (743) 200-8347 to schedule yours.
We Also Serve Cities Near Rialto
Our crews run daily to Roof Installation in Rialto and the surrounding Inland Empire communities, including Bloomington, San Bernardino, Fontana, and Grand Terrace. If you are a few miles outside Rialto’s city limits, on county acreage, or in an adjoining tract, we can still scope the roof and quote it the same week. Call (743) 200-8347 and tell us your cross streets.
Serving Rialto, CA - Our Local Coverage Area
We’re based in the Rialto 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 Rialto
Yes, it changes the fastening pattern, the starter strip, and the shingle spec. We use a six-nail high-wind pattern and sealed starter strips on every Rialto installation because the city sits directly in the wind-acceleration corridor below Cajon Pass, where Santa Ana events can exceed 70 mph and peel ridge caps and three-tab edges right off. A roof installed to coastal standards will not hold here. Call (743) 200-8347 and we will show you the difference in writing.
A typical single-story Rialto ranch runs 14 to 19 squares, and a square is 100 square feet of roof area. Comparing bids without square counts is how homeowners get burned, because one roofer’s “roof” is another roofer’s partial re-cover. We measure in squares and write the count on every quote, so you can compare line by line.
Yes, acreage parcels in Rialto’s county-adjacent areas bring county permitting requirements rather than city, plus setbacks for well heads and septic systems, long material hauls, equipment access around outbuildings and shops, and grading or drainage considerations on open lots. We scope all of that before quoting, so the number you get is a real project number, not a guess. Call (743) 200-8347 and we will walk the property with you.
On pre-1990s Rialto tracts, the original organic felt underlayment has often desiccated to powder from attic temperatures above 130°F, so when shingles blow loose the decking underneath is exposed and sun-bleached, not protected. On a 1962 slab-on-grade ranch off North Riverside Avenue, our crew tore off the original three-tab layer after a February Santa Ana peeled back roughly two squares along the west hip; the felt crumbled to dust in our hands and the decking was bare. We installed new OSB where the sheathing had checked, ice and water shield in the valleys and along the low-slope rear section, GAF architectural shingles with a sealed starter strip and a six-nail high-wind pattern, and a ridge vent to replace the rusted turtle vents before sealing the drip edge and fascia.
Yes, and for many Rialto homes it is the better long-term answer to the wind corridor. Standing seam panels have no exposed edges for gusts to grab, and the lighter finishes reflect enough valley heat to keep attic temperatures down. We price both shingle and metal on the same written estimate, so you can decide with real numbers in front of you. Call (743) 200-8347 for your free estimate.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Rialto and the Inland Empire.