Chimney Flashing Repair in Modesto, CA
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Cost Range
$506–$1,897
Local Pros
21 available
Overview
Repair or replace the layered flashing system where your chimney meets the roof. Chimney flashing is especially vulnerable to leaks due to the large penetration size and differential movement between chimney and roof structure.
Modesto Climate Considerations (marine)
- • Moss and algae growth (primary concern)
- • Cedar shake rot from persistent moisture
- • Gutter clogging from conifer debris
Common Signs You Need Chimney Flashing Repair
- • Water stains on ceiling near chimney
- • Efflorescence on chimney brick
- • Damaged mortar at roofline
- • Visible rust on flashing
- • Musty smell near fireplace
Chimney Flashing Repair Cost in Modesto
Low
$506
Average
$1,202
High
$1,897
When to Call a Professional
Call a professional when:
Chimney flashing involves both roofing and masonry work. Improper installation causes the most persistent and damaging roof leaks. Always hire a specialist.
Roofers in Modesto
Western Roofing Systems
San Jose, CA
(650) 644-8499SKYBLUEROOFING INC.
San Jose, CA
(408) 707-7705
Precise Roofing Company
San Jose, CA
(888) 288-1885
Westshore Roofing, Inc.
San Jose, CA
(408) 456-0200Founding Member
Premium spot in Modesto
Ambassador
Lead the Modesto community
Founding Member
Premium spot in Modesto
Modesto Housing Market
Median Home Price
$415,000
Homes for Sale
13
Price per Sq Ft
$223
Local Pros
196
Home Service Professionals Near Modesto
Median Household Income
$77,899
Median Home Value
$415,600
Median Rent
$1,609/mo
Homeownership Rate
58.4%
Population
218,614
Median Year Built
1978
Source: U.S. Census Bureau, ACS 2023 5-Year Estimates
Track This in PropDoctor
Chimney Flashing Repair
Date
April 2026
Cost
$1,202
Vendor
Your local pro
Warranty
15-year material warranty
Modesto average: $506–$1,897
Before
Issue documented with photos
After
Repair completed, area sealed
Materials Used
Warranty Details
15-year material warranty
Auto-Checkup Created
"Chimney & Flashing Check" — every 12 months
Property Health Score
Good
roof category +12 pts(74 → 86)
Your health score is calculated based on documentation completeness, maintenance currency, warranty coverage, and investment tracking.
Maintenance Plan for Modesto
Recommended Maintenance Plan — Modesto, California
Key Risks
- • Moss and algae growth (primary concern)
- • Cedar shake rot from persistent moisture
- • Gutter clogging from conifer debris
- • Occasional heat waves (homes lack AC)
- • Persistent rain and dampness
Schedule
Visual inspection (DIY)(DIY)
Professional chimney flashing repair
Estimated: $400–$1500
Moss/algae treatment
Estimated: $200–$500
Plan for full replacement
Estimated: $1,200–$4,500
Modesto-Specific Tips
- • Zinc strip installation at roof peak prevents moss/algae growth in marine climate
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Smith & Sons
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J&R Home Services
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Related Services in Modesto
Roof Leak Repair
Locate and repair roof leaks to prevent water damage, mold growth, and structural deterioration. Repairs may involve patching damaged shingles, sealing flashing, or replacing underlayment.
Roof Inspection
Professional assessment of your roof's condition, identifying current damage and potential issues before they become costly repairs. Includes inspection of shingles, flashing, vents, gutters, and attic ventilation.
Roof Flashing Repair
Repair or replace the metal flashing that seals joints and transitions on your roof — around chimneys, vents, skylights, and where roof planes meet walls. Failed flashing is one of the most common causes of roof leaks.
California Regulations
Building Code: CBC 2022 (based on IRC 2021)
Seller Disclosure: California has among the most extensive disclosure requirements in the US. Sellers must complete a Transfer Disclosure Statement (TDS) plus Natural Hazard Disclosure (NHD).
Natural Disaster Risks: Earthquakes, Wildfires, Mudslides, Drought