Roof leak repair in San Dimas, CA
10 licensed roofing contractors are based in San Dimas. See San Dimas's rain and storm numbers below, then the list of local companies.
Licenses checked · California Contractors State License Board
14.5 innormal precipitation a year
San Dimas's rain, by the numbers
San Dimas averages 14.5 inches of rain a year, per NOAA's 1991-2020 climate normals.
February is typically the wettest single month, averaging 4.2 inches on its own.
That's the stretch of the year a small, contained leak in San Dimas tends to turn into a stain worth calling about.
Data: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020 (annual/seasonal and monthly, by station) (1991-2020), from the nearest NOAA station 3 mi away.
Storm risk near San Dimas
Wind-driven rain during a hurricane finds gaps in a San Dimas roof that straight-down rain never reaches, especially around flashing and vents.
That's worth remembering the next time a storm heads toward San Dimas.
- Hail
- Relatively Moderate
- Strong wind
- Relatively Moderate
- Wildfire
- Very High
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Roof leak repair contractors based in San Dimas
Alphabetical by business name, nothing more. Speed and quality aren't part of the sort.
American Services Group Of California INC
Roofing contractor
- License
- C-39 Roofing · 769061
- Since
- 1999
- Expires
- Sep 30, 2027
- ZIP
- 91733
C & C Roofing
Roofing contractor
- License
- C-39 Roofing · 709658
- Since
- 1995
- Expires
- Jul 31, 2027
- ZIP
- 91773
Cabral Roofing & Waterproofing Corporation
Roofing contractor
- License
- C-39 Roofing · 746649
- Since
- 1998
- Expires
- Mar 31, 2028
- ZIP
- 91773
Ces Roofing
Roofing contractor
- License
- C-39 Roofing · 998787
- Since
- 2014
- Expires
- Jan 31, 2028
- ZIP
- 91773
Homeowners Friend Roofing
Roofing contractor
- License
- C-39 Roofing · 942816
- Since
- 2010
- Expires
- Jan 31, 2028
- ZIP
- 91773
Northwood Roofing INC
Roofing contractor
- License
- C-39 Roofing · 999546
- Since
- 2014
- Expires
- May 31, 2027
- ZIP
- 91773
P H Roofing
Roofing contractor
- License
- C-39 Roofing · 851584
- Since
- 2004
- Expires
- Dec 31, 2026
- ZIP
- 91773
Preferred Roofing
Roofing contractor
- License
- C-39 Roofing · 777824
- Since
- 2000
- Expires
- Apr 30, 2028
- ZIP
- 91773
The M & M Construction Group
Roofing contractor
- License
- B General Building / C-39 Roofing · 772942
- Since
- 1999
- Expires
- Nov 30, 2027
- ZIP
- 91773
Wiltshire Urethane Foam Company
Roofing contractor
- License
- C-39 Roofing · 1008304
- Since
- 2015
- Expires
- Oct 31, 2027
- ZIP
- 91773
Questions to ask a {city} roof leak repair company
- Can you find the actual source before you quote a repair, not just patch where the ceiling is wet?
- Is this a contained repair, or does it point to a bigger problem with the roof?
- Will you check the attic and insulation for existing water damage, not just the roof surface?
- What's your timeline if it's actively raining versus once it's dry?
- Do you offer a temporary tarp while a full repair is scheduled?
- What's covered by a workmanship warranty on the repair itself?