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Roofers in Walnut, CA: roof repair, replacement and leaks

Leaks, worn shingles, storm damage or a full replacement start with one call and a written estimate.

  • Local roofers who know Los Angeles County roofs
  • Calls answered 24 hours a day, 7 days a week
  • A roofer calls you back, usually within one business day
  • Written estimate before any work starts
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Roofers Hotline service van with the company name and phone number on the side
Walnut
County outline; the Storm Prediction Center has logged 3 hail reports nearby since 2000.

Roofers Hotline handles roof repair, roof replacement, leak repair, storm damage and inspections in Walnut and the rest of Los Angeles County, 13 miles from Anaheim, through one phone number, (855) 512-1072. Someone answers at any hour, and the estimate is written down before any work begins.

Roof repair and replacement across ZIPs 91788, 91789, 13 miles from Anaheim, with calls answered around the clock.

Sun, heat and rain do the damage here: the nearest station averages 71 days a year at 90 degrees or above, and hail and snow are rare.

Roofing services in Walnut

Roof repair

In ZIP codes 91788 and 91789 data, 41.5% of homes were built before 1980, so worn flashing and loose roofing are common reasons to call. Roof repair here starts with an inspection of the roof surface, flashing and attic, followed by a written estimate that lists the repair before any work starts. The repair follows that estimate. Los Angeles County logged 5 damaging thunderstorm wind events in NOAA's storm records since 2015, so after a windy storm, call and ask for the written estimate.

For 219 ZIP codes and 47 towns, Anaheim roof repair is one call away, and the visit is explained step by step.

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Roof replacement

Homes in ZIP codes 91788 and 91789 have a median build year of 1982, and the Pomona Fairplex station averages 70 days a year at 90 degrees or higher. That steady heat and sun wear on a roof, and it is a common reason a repair turns into a replacement. Roof replacement here begins with an inspection and a written estimate that covers the whole job, and the work starts after you approve it. Call to book the inspection and ask for the written estimate.

From the same number, Roofers Hotline also books roof replacement for this metro, photographed before the estimate is written.

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Emergency roof repair

Los Angeles County logged 6 tornadoes in NOAA's storm records since 2015, and a sudden storm can open a leak overnight. Emergency roof repair here means calling any hour, since calls are answered 24/7, then an inspection, a written estimate and the repair or tarping the damage needs. Call as soon as you see water coming in.

Metro homeowners also book emergency roof repair across this metro after storm days, estimate first and work second.

Call for emergency roof repair

What shapes roof work here

Winter is not what wears roofs out in Walnut. The Pomona Fairplex weather station shows 0 inches of snow and 2.7 freezing days a year in the 1991 to 2020 climate normals, so ice-dam risk is Low. Hail is the storm to plan around: NOAA Storm Prediction Center reports here peak in March, even though the area sits in the Low hail band. Roofers Hotline books roof repair and roof replacement here, with an inspection and a written estimate before any work starts. Call before March so loose or cracked roofing is found before hail season begins.

For a neighboring community 3 miles away, see roofing coverage in Diamond Bar; the telephone number, the inspection and the written-estimate rule are identical.

CountyLos Angeles
ZIP codes91788, 91789
Nearest metro hubAnaheim (13 mi)
Typical arrival windowemergency calls first; inspections within a few days
Licensing authorityCSLB
  • 37% Homes built before 1980town limits, Census estimates
  • 1983 Median year builttown limits, Census estimates
  • 9,034 Housing unitstown limits, Census estimates
  • 3 Hail reports within 15 km of this townSPC, 2000 to 2024, Low band
  • 0in Annual snowfallnearest station, 1991–2020
  • 3 Days at or below freezingnearest station, 1991–2020
  • 15in Annual precipitationnearest station, 1991–2020
  • 8 Hail events, one inch or largerLos Angeles County, since 2015

Sources: U.S. Census ACS 2019 to 2023; NOAA SPC reports; NCEI 1991 to 2020 normals; NOAA Storm Events (Los Angeles County). Updated October 2026.

Questions

Roofing questions in Walnut

Are Walnut roofs older than roofs in Anaheim?

Not by the share built before 1980. That figure is 37% here by Census estimates for 2019 to 2023, against 66% in Anaheim, and it is 41.5% in one ZIP. The median home there was built in 1982, so newer roofs are common. Call for an inspection to learn what condition yours is in.

How much hail should local homeowners expect?

Not much. The area is in the Low hail band, and Los Angeles County logged 8 hail events of one inch or larger since 2015, with the largest at 1.75 inches. Four of those came in 2024. After any hail, book a roof inspection and ask for the written estimate.

Key takeaways

  • The median home within the town limits was built in 1983, and 37% of them predate 1980, by Census estimates.
  • Heat ages shingles, and NCEI normals show 71 days at 90 degrees or above at the nearest station each year.
  • Since 2015, Los Angeles County logged 5 damaging wind events in NOAA records, and most of them lift shingles.

Why call

Why Roofers Hotline in Walnut

  • Local roofers who know Los Angeles County roofs Weather disasters in Los Angeles County have drawn 22 federal declarations on OpenFEMA's record, most recently in 2024.
  • Calls answered 24 hours a day, 7 days a week The line is open around the clock because roofs fail at every hour.
  • We track every storm the county records 9,034 housing units within the town limits are on record here, and NOAA, FEMA and Census data feed every page here.

Licensing in California

California licensing: California requires roofing contractors to hold a CSLB license, usually the C-39 Roofing classification. Look up any license at CSLB.

Call (855) 512-1072 or send the quote form with your ZIP code; a roofer calls back from a local number to book the inspection, and the estimate is written before any work starts (how each step works).

Nearby towns and the Anaheim area

All towns near Anaheim

Homeowners comparing communities can read Rowland Heights roofers, 4 miles away, where the estimate is also written before any work starts.

More roofing help in the Anaheim area:

For the longer read before the first estimate, see our guide to local roof replacement costs.

Get roofing quotes in Walnut

Takes about a minute. Tell us the ZIP code and what the roof is doing, and a local roofer calls you back to book an inspection and written estimate.

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Or call: the number at the top of this page is answered 24/7.

Drafted with AI help from public storm, housing and licensing records, fact-checked against those records and reviewed by the Roofers Hotline team · Last reviewed · How we write these pages

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