Roof replacement cost in Tarzana depends on four things: the covering you choose, the size and shape of the roof, what has to come off and be repaired underneath, and the City of Los Angeles rules that apply to your lot (a cool roof product, a Class A covering in the Very High fire zone and the permit). NEMA Roofing does not publish a price because those four vary from house to house; the reliable number is a written estimate after an inspection. To get one, call 818-528-6412.
Which costs are set by the rules, and which are your choices?
Part of every Tarzana replacement is fixed by code before you choose anything. The rest is where your decisions move the total.
| Set by rules (on most Tarzana reroofs) | Your choices |
|---|---|
| A permit from the Los Angeles Department of Building and Safety (LADBS), with its fee and final inspection | The covering: asphalt shingle, concrete or clay tile, metal, or a membrane on low-slope areas |
| A Cool Roof Rating Council certified product when more than half of the roof is replaced (ZIP 91356 is in climate zone 9) | The color and product line, among those carrying the rating |
| A Class A roof covering if the lot is in a Very High Fire Hazard Severity Zone | Whether to reuse sound tile or buy new |
| Full tear-off when the roof already has two layers, is tile, or is water-soaked or deteriorated (state residential code) | Upgrades such as more attic ventilation, new skylights, gutters, or mounts planned for solar |
| New flashing and vents wherever the old ones are rusted, damaged or deteriorated | The manufacturer warranty level you want registered |
A quote that skips a left-column item is not cheaper; it is priced for a roof that may not pass inspection.
What does a replacement involve on common Tarzana houses?
Census estimates put the median year built for homes in 91356 at 1973, with about 78 percent built before 1980. That housing stock shapes the cost more than any average does. Find the description closest to your home.
1960s and 1970s ranch house with a shingle roof
Many of these houses are on their second or third roof, so the first cost question is how many layers are up there. Two or more means a full tear-off and more disposal. Older board or plywood sheathing often needs some replacement once exposed, priced per sheet. Attic intake and exhaust are worth checking at the same time, since ventilation changes are simplest while the roof is open.
Spanish or Mediterranean house with a tile roof
On a tile roof the underlayment beneath the tiles does the waterproofing, so a leaking tile roof can still have tiles worth keeping. State code lets undamaged clay or cement tile be reinstalled, and LADBS lists removing the tiles, installing new underlayment and resetting the same tiles as an Express Permit item that does not require cool roof compliance. That option can cost less than new tile if enough tiles survive removal, so ask for a count of broken or missing pieces and whether matching replacements are still made (some concrete tile lines have been discontinued). Full replacement adds new tile, battens, the weight check and heavier disposal.
Hillside house in the fire zone
A state grid estimate maps about 46 percent of the land in 91356 as Very High Fire Hazard Severity Zone. On a lot inside it, the whole assembly has to rate Class A, which can rule out lower-cost products. Hillside lots also tend to add cost through steeper slopes, longer carries from the street and limited room for a dumpster.
House with a flat or low-slope addition or patio cover
Low-slope sections need a membrane system rather than shingles or tile, with its own details where it meets the sloped roof. Under the 2025 state energy code, a low-slope reroof in climate zone 9 needs an aged solar reflectance of 0.63 (or an SRI of 75), which narrows the choice to white or very light membranes unless an insulation trade-off is used.
How much does the material choice matter?
More than any other single choice. Each covering carries its own material cost, labor per square and accessories:
- Asphalt shingles are usually the lowest-cost of the three to install and come in many cool-rated colors.
- Concrete and clay tile cost more to buy, install and haul, and may need a structural check; reusing sound tile changes the math.
- Standing seam metal costs more up front for its long service life and needs trim and flashing made to fit.
How each material performs on a Tarzana house is compared in roof replacement materials for Tarzana homes.
Why is there no price on this page?
Installed prices follow material markets and every roof’s own details: squares, pitch, layers, deck, access and the rules above. A single figure without your measurements would mislead more than it helps. What you can do before calling anyone is measure your roof’s squares with the Tarzana roof replacement cost calculator and read how quotes are structured in roof replacement pricing in Tarzana, so you can check any estimate line by line.
Get your roof’s number
An estimate from NEMA Roofing starts with the roof and the attic, confirms the fire zone and permit path for your address, and lists each line separately. Tarzana is one of our five Google-verified locations, as are Woodland Hills, Downey, Oxnard and Santa Barbara, and between them we cover all of Los Angeles, Ventura, Santa Barbara, Riverside and San Bernardino counties (see the areas we serve). Learn what the job includes on our roof replacement service page, or call NEMA Roofing at 818-528-6412 to book the inspection.
