Roofing in Granada Hills, CA: re-roofs and tile leaks traced
Cali Energy replaces and repairs roofs in Granada Hills under its C-39 roofing license. On one Granada Hills house we replaced thirty squares of covering before the array, with the rotten wood found underneath replaced first; on a tile roof we traced a reported leak to a penetration older than the solar and sealed it on the first visit.
Granada Hills' single-family homes have a median build year of 1959, and LADBS issued 444 re-roof permits on one- and two-family homes here from January 2025 to May 2026. A re-roof here falls under the City of Los Angeles cool-roof rule, and the deck is checked once the covering is off: on our 2022 Granada Hills project rotten wood was found and replaced before any mount was set, priced as a separate item once its extent was known, and the array went onto thirty squares of new covering.
Granada Hills roofs
- Houses from the late 1950s. Median build year 1959; 55.6% of Granada Hills' 13,843 single-family homes were built before 1960.
- A lot of re-roofing. LADBS issued 444 re-roof permits on one- and two-family homes in Granada Hills from January 2025 to May 2026. How often LA roofs get replaced
- Shingle and concrete tile. Our Granada Hills jobs run from composition shingle on 2×4 rafters to concrete tile over several planes.
- The cool-roof rule. Granada Hills is in the City of Los Angeles, so a full re-roof needs a covering rated by the Cool Roof Rating Council. The cool-roof rule
Rotten wood found, then the array
On our 2022 Granada Hills project the roof covering was replaced before the array went on: thirty squares, the permit closed out in May. With the covering off, the structure showed rotten wood. It was replaced before any mount was set, and priced as a separate item once its extent was known. Fifteen modules then went on a checked substrate, and the project reached permission to operate in August 2022.
A leak traced, not guessed
When the owners of a Granada Hills tile roof reported leaks in March 2023 and put them down to the solar, we were on the roof two days later. Tracing where the water was actually entering found a penetration older than the installation and unrelated to any mount; it was sealed on that visit, and we reported the finding in writing. We then scoped a full underlayment replacement with the tile lifted and reset, matched the existing tile by its manufacturer part number, and took the modules off and back on around the re-roof that August. Roof leak repair
Granada Hills roof work we have done
The wood under the array was rotten.
Thirty squares of composition shingle with the rotten wood replaced before any mount was set; the permit closed out and the array reached permission to operate in August 2022.
The leak was blamed on the array. It was not the array.
A reported leak traced on a visit two days later to a penetration older than the solar and sealed; the tile underlayment scoped with the tile matched by part number.
How roof work runs in Granada Hills
- Inspection of the covering, the flashings and, for a leak, where the water is actually entering.
- Written scope, with found conditions like rotten wood priced as their own item once their extent is known.
- LADBS roofing permit, and the solar permit when an array is planned.
- Tear-off or tile work under our C-39 license.
- Final, and the array on or back on new flashed attachments.
Nearby. Roofing in Northridge · Porter Ranch · Canoga Park · All our Granada Hills projects
Roofing questions for Granada Hills
Does Cali Energy do roofing in Granada Hills?
Yes. Cali Energy replaces and repairs roofs in Granada Hills under its C-39 roofing license, with the LADBS permit and inspections, and works around solar that is already on the roof. CSLB #1032379, based in Northridge, next to Granada Hills; call +1-323-844-7777.
Is my roof leak caused by the solar?
It has to be traced to know. On a Granada Hills tile roof a leak blamed on the array came from a penetration older than the installation, unrelated to any mount, and was sealed on the first visit.
What if rotten wood is found under the old roof?
It is replaced before anything is mounted, and priced as a separate item once its extent is known. On our 2022 Granada Hills re-roof that is how the rotten wood was handled.
Can the solar stay on while the roof is replaced?
No. The modules come off and go back on around the re-roof. On a Granada Hills tile roof we removed and reinstalled the modules around the re-roof in August 2023.
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Get your Granada Hills roof looked at
Tell us the covering, its age, where any water shows up and whether solar is on the roof or planned. We will inspect it, check the deck where it can be seen, and give you a written scope.
Get a Granada Hills roofing quote Call +1-323-844-7777
Cali Energy · Northridge, CA · cali-energy.com