Metal roofing
Architectural shingles
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 Installation Across South Whittier
Roof installation in South Whittier typically runs $9,800 – $18,500 for a full tear-off and re-shingle on the area’s classic 1950s – 1970s tract homes, with most jobs completed in 2 – 4 days. We know the blocks off Santa Gertrudes Avenue, the cul-de-sacs near Leffingwell Road, and the neighborhoods backing up toward the San Gabriel River, because our crews work them every week. You get a written price before any work starts, a live trackable arrival time, photo documentation of what’s underneath your old roof, and a digital invoice sent by text when the job is done. Call (831) 777-6412 to schedule a free estimate.
Why Crestview Roofing Co West Covina Is South Whittier’s Preferred Roof Installation Company
We’re not “preferred” in some abstract sense. We’re preferred because homeowners scheduling a South Whittier Roof Replacement can see exactly what they’re paying for before we tear off a single shingle. Every job starts with a written line-item quote. That number doesn’t move unless we find something hidden under the old roof, and if we do, you get a photo, a written explanation, and a signed change order before we spend another dollar of your money.
Dylan Pace runs our crews, and when we say the people showing up at your door are background-checked and uniformed, we mean you’ll know their name and their arrival time before they pull into your driveway. That matters on a street like yours where neighbors talk. We’ve replaced roofs near Adventure Park, over by the 605 and Telegraph Road, and throughout the neighborhoods off Mulberry Drive. Same standard every time: the price on page one is the price on the invoice. That’s Roof Installation done with The Relay Standard, and it’s why South Whittier picks up the phone and calls us instead of dealing with a contractor who quotes one number and bills another.
Founded in 2000 as part of the Relay Home Co. family, we back every install with the 365-Day Done Right Promise. If something’s not right within a full year, we correct it at no charge. In writing. Included with every job.
Styles & brands we work with






Roof Ventilation in South Whittier
Roof Ventilation on a South Whittier tract home is usually inadequate, because the original builders didn’t account for 90-degree summer days baking a low-slope roof for 14 hours straight. When we install a new roof, we assess ridge vents, soffit vents, and any existing gable vents before sheathing goes down. An attic that doesn’t breathe cooks shingles from underneath, which is why so many original 1980s roofs in this area shed granules prematurely.
Ridge Vent and Soffit Balance
Most 1960s South Whittier homes have one gable vent and nothing else. That creates dead-air pockets where attic temperatures climb past 140 degrees. We cut in continuous ridge vents and pair them with properly sized soffit intake so air moves evenly from eaves to peak. West Covina residents dealing with the same heat patterns ask us this constantly.
What Ventilation Work Costs
For a standard single-story South Whittier roof, adding ridge vents and correcting soffit intake runs $600 – $1,400 depending on linear footage. It’s included in our full roof installation quote as a line item, not buried in a lump sum. The written estimate spells it out.
Roof Flashing Installation in South Whittier
Roof Flashing Installation on a South Whittier home means replacing the metal strips that seal joints around chimneys, vents, skylights, and where roof planes meet walls. On older tract homes, the original flashing is almost always galvanized steel that has corroded or separated after 30 – 50 years of occasional wind-driven rain sneaking under the seams. We replace it with code-compliant material on every full roof install.
Valley and Penetration Flashing
Homes throughout South Whittier have valleys where two roof sections meet. If those valleys were flashed with cheap tin or simple weave shingles, they leak eventually. We install self-adhered ice and water shield in the valley first, then step flashing and counter-flashing at penetrations, and finally the shingle layer over the top. It’s the sequence that stops Santa Ana wind-driven rain from creeping under shingles at eaves and pipe boots.
Flashing Replacement Cost
Full roof flashing replacement as part of an install typically runs $900 – $2,200, depending on how many penetrations, chimney count, and valley length. We price it per item on the quote, so you can see exactly where every dollar goes. No grand total mystery. The number on the page is the number on the invoice.
Trusted Brands We Service in South Whittier
We install and service roofing systems from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For South Whittier homes, we lean heavily on GAF Timberline HDZ architectural shingles and CertainTeed Landmark for the classic 1960s look homeowners want matched. If your original roof was Boral cement tile and a section failed, we can match profile and color. One call to (831) 777-6412 gets you a written quote with material specs on it, not just a scrawled note that says “shingles.”
Common Roof Installation Problems We See in South Whittier Homes
- Disintegrating organic felt underlayment. On homes built before 1980, we regularly pull up old shingles and find felt that crumbles to dust when touched. That means the deck has no secondary moisture barrier, so we re-sheathe before laying anything new.
- Skip sheathing with gaps. Original 1950s and 1960s builds often have 1×6 boards spaced apart, not a solid deck. Modern shingles need a solid nailing surface, so full plywood sheathing goes down over the old skip boards.
- Premature south-facing slope wear. South Whittier sits close enough to the San Gabriel River that afternoon sun reflection bounces off concrete channel banks and water surfaces. South-facing roofs lose granules years before north-facing slopes, leaving bare asphalt exposed to UV and prone to leaks.
- Compromised eaves and rakes. Fifty years of rare heavy rain storms have worn down drip edge and left exposed wood at fascia lines. Once moisture gets into the rafter tails, rot spreads. We cut out damage, replace what’s needed, and install new drip edge around the entire perimeter.
See the difference
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AfterPricing for Roof Installation in South Whittier, CA
A standard full roof installation on a single-story 1960s South Whittier tract home runs $9,800 – $14,500. Two-story homes or those with steeper pitches land closer to $14,000 – $18,500. Roof Ventilation work adds $600 – $1,400, and Roof Flashing Installation runs $900 – $2,200 depending on penetrations and valleys. If tear-off exposes damaged decking, we price plywood replacement per sheet, shown on your written quote before we touch anything. You’ll know the number before anyone picks up a hammer. Call (831) 777-6412 for a free estimate on your specific South Whittier property.
We Also Serve Cities Near South Whittier
Our Roof Installation in South Whittier crews regularly work in West Covina, Whittier, Montebello, and Hacienda Heights. If you live just over the line on Telegraph Road or up toward Hacienda Boulevard, the same written pricing, background-checked technicians, and 365-Day Done Right Promise apply. Scheduling is coordinated from our Los Angeles office, with crews dispatched locally to your neighborhood.
Serving South Whittier, CA - Our Local Coverage Area
We’re based in the South Whittier 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 South Whittier
Low-slope roofs under 3:12 pitch should not get standard architectural shingles, because water drains too slowly and wind can push it up under the shingle edges. For low-slope sections, we install self-adhered underlayment across the entire deck and switch to specialized low-slope systems like CertainTeed’s Flintlastic or GAF’s Liberty SBS membrane. Most South Whittier tract homes have a main gable slope that can take shingles plus flat porch or addition sections that need membrane. We price both on the written quote so there’s no mid-job surprise. Call (831) 777-6412 to have your specific slope evaluated.
Sun reflection off the concrete river channel and surrounding hardscape concentrates afternoon heat and UV exposure on south-facing roof planes. We see shingles on those slopes losing granules 5 – 8 years earlier than the same shingles on north-facing sides. That premature granule loss exposes bare asphalt, which then cracks and leaks. During tear-off, we inspect the south slope more closely and often recommend higher-wind-rated or longer-warranty shingles on that plane specifically. Call (831) 777-6412 and ask us to walk your roof with you.
Skip sheathing means the original builders used spaced 1×6 boards instead of a solid plywood deck. Modern shingle manufacturers’ warranties require a solid nailing surface, so the right fix is to lay CDX plywood over the skip boards. That’s a line item on your original written estimate as a per-sheet allowance, because we can’t see the skip sheathing until tear-off. When we find it, you get a photo and a written confirmation before we buy a single sheet. The number was already in your contract, so there’s no surprise. Call (831) 777-6412 for an estimate that includes this allowance.
Yes, roof installations in unincorporated South Whittier require a permit through Los Angeles County Building and Safety. We pull the permit, schedule inspections, and make sure the work passes before we call the job done. Most jobs need a tear-off inspection before underlayment goes down and a final inspection once shingles and flashings are in place. We handle all of that, and the permit cost is a line item on your written quote. For an exact permit figure on your address, call (831) 777-6412.
Yes, most original South Whittier tract homes used three-tab composition shingles in earthy browns, grays, or light tans. We match those colors and profiles with architectural shingles that carry the same look but perform far better in heat and wind. On a 1963 tract home off Santa Gertrudes Avenue, our tear-off exposed original skip sheathing and organic felt underlayment that crumbled to dust on contact. We re-sheathed the entire deck with CDX plywood before laying GAF Timberline HDZ architectural shingles, new drip edge, and ice and water shield in the valleys. The finished roof looked like a refreshed version of the original, with materials that will actually outlast the sun. Call (831) 777-6412 to see matching samples for your block.
What Opening Up an Older South Whittier Home Actually Reveals
This is the part most roofing companies won’t tell you until their invoice shows up. When we tear off a roof on Mills Avenue, Calmada Avenue, or anywhere in the 90604 ZIP, we expect to find three things: original dimensional lumber decking with gaps, failed waterproofing that’s been leaking slowly for years, and framing around penetrations that needs reinforcing to meet current code. You don’t see any of that from the curb. You only find it when the old shingles come off.
That’s why our process starts with a physical inspection that goes beyond the surface. We check attic ventilation, look at the underside of the deck from inside, and flag anything that could trip a permit requirement. Then we build allowances into your written contract for deck repair, re-sheathing, and framing corrections. If none of it is needed, you don’t pay a cent for those line items. If it is needed, you already know the per-unit price and you approve the work before we proceed. No surprise change orders, no phone call saying “we found rot.” We found it, we priced it, and you signed off, all before the first new nail goes in.
South Whittier’s 1950s – 1970s tracts were built fast and built high-volume. The original builders used skip sheathing because lumber was cheap and solid plywood wasn’t standard yet. The felt underlayment of that era degrades over decades of hot-dry cycles, and by the time you need a new roof, it’s practically sand. Replacing all of that is the only way to give the new shingles a fighting chance. We’d rather quote you the honest per-sheet price for plywood on page one than tell you after the dumpster is full that your “roof” now costs $4,000 more. That’s the entire point of South Whittier pricing done right: visibility before work starts.
Contact Crestview Roofing Co West Covina for Your Free Estimate
You’ll get a written line-item quote, a live time-of-arrival for your estimate appointment, and a roofer who answers questions in plain English. No four-hour windows. No vague “market rates.” Just a real number from a real company that’s been doing this since 2000 under The Relay Visibility Guarantee. Call (831) 777-6412 to schedule your free roof installation estimate in South Whittier today.
Written by Dylan Pace, Owner at Crestview Roofing Co West Covina, serving South Whittier and surrounding communities since 2000.