How to choose a roof replacement contractor in Tarzana: confirm an active California license in the roofing (C-39) or general building (B) class with workers’ compensation on file, ask who will pull the Los Angeles Department of Building and Safety (LADBS) permit, and compare written bids that describe the same scope, including the cool roof and fire rating rules that apply in Tarzana. The contract then has to meet the state’s home improvement rules. To talk through a replacement with an estimator, call NEMA Roofing at 818-528-6412.
What should you check on the state license record?
Look the company up on the Contractors State License Board (CSLB) website by name or license number; a number printed on a truck proves nothing by itself. On the record, confirm:
- Status and class: current and active, with C-39 (roofing) listed.
- Workers’ compensation: CSLB requires it (or a certificate of self-insurance) of every active C-39 contractor, even one with no employees, so an exemption on a roofer’s record is a warning sign.
- Disclosures: the disciplinary and complaint history, and how each item ended.
A salesperson who is not the license holder must be registered with CSLB as a Home Improvement Salesperson. NEMA Roofing’s record is CSLB license #1083283, with the C-39 and B classifications.
What should a contractor know about Tarzana houses?
A roofer who replaces roofs here should raise these points at the first visit, before you ask:
- Old roofs under the new one. Census estimates put the median year built in ZIP 91356 at 1973, and about 78 percent of homes predate 1980, so many Tarzana houses are on their second or third roof. The contractor should count layers and check the deck, because state code allows no new covering over two existing layers or over tile, and older sheathing often needs some replacement.
- Tile you may be able to keep. On a tile house, a good contractor prices two options: new tile, or lifting the existing tile, installing new underlayment and relaying it. LADBS issues that second scope as an Express Permit without cool roof compliance, and the answer depends on how many tiles break.
- Heat. The NOAA station at Pierce College, about 2 kilometers away, averages 115 days a year at or above 90°F. Expect a high-temperature underlayment and a ventilation plan with intake and exhaust written into the bid.
- The rainy months. More than four-fifths of the station’s normal yearly rain falls from December through March. Ask how much roof will be open at once in those months and how it is sealed every night.
- Hillside access. On the hillside lots south of Ventura Boulevard, steep driveways and narrow streets limit where a dumpster and deliveries can go; ask how lifts and staging will protect stucco, railings and plantings.
Which Tarzana rules should a contractor explain?
Tarzana is inside the City of Los Angeles, so LADBS issues the reroof permit. The contractor should be able to tell you, without looking it up:
- That replacing more than half of a home’s roof in the city calls for a cool roof product certified by the Cool Roof Rating Council, and which colors in your chosen line carry that rating (ZIP code 91356 is in state climate zone 9).
- Whether your lot is mapped in a Very High Fire Hazard Severity Zone, where LADBS requires a Class A roof covering. By a grid estimate over the state fire maps, around 46 percent of the land in 91356 lies in that zone, so many Tarzana addresses need this check.
- Which permit path your covering takes: the LADBS Express Permit for reroofing is limited to Class A or B coverings under 6 pounds per square foot over solid sheathing.
- Who applies for the permit and when the final inspection happens. Ask for the permit number before work starts.
How these rules show up line by line in a bid is covered in how to get a roof replacement estimate in Tarzana.
Do manufacturer certifications matter for a replacement?
Mostly for the warranty. Some manufacturer warranties that add workmanship coverage are only available through contractors the manufacturer certifies: GAF’s Golden Pledge Limited Warranty through GAF Master Elite contractors, and Owens Corning’s Preferred Protection through its Platinum or Preferred Contractors. Verify a credential in the manufacturer’s own directory. NEMA Roofing is listed as a GAF Master Elite contractor and President’s Club award winner, an Owens Corning Preferred Contractor and a Polyglass Preferred Contractor. Ask each bidder to name in the contract the warranty they will register.
How do you compare bids from Tarzana roofers?
CSLB advises getting at least three written bids on the same specifications and being wary of one far below the rest, since it often leaves out work. Lay the bids side by side and check each line against what a Tarzana roof needs:
| Bid line | Tarzana check |
|---|---|
| Permit | LADBS permit and final inspection included, and the permit path named (Express Permit or plan check) |
| Covering and color | Brand, line and color, with the color’s CRRC cool roof rating for a climate zone 9 reroof, or the energy code exception the bid relies on |
| Fire rating | Class A stated for the whole assembly if the lot is in the Very High fire zone |
| Tear-off | Layers counted; no recover proposed over two layers or over tile |
| Tile option | For tile houses, a priced relay option and a count of broken tiles |
| Deck repair | A unit price per sheet, since older decks often need some |
| Underlayment and ventilation | A named high-temperature underlayment; intake and exhaust listed |
| Warranty | The manufacturer warranty by name and any workmanship terms |
For why totals differ between bids, see the cost of roofing replacement.
What should you ask about the crew?
- Who supervises on site each day, and who is your contact when a decision is needed?
- Does the company’s own crew do the work, or a subcontractor? If a subcontractor, check that license too.
- If rotted decking or a hidden leak turns up after tear-off, how will you be told, and how is the change priced and signed?
What are the red flags before you sign?
- A bid for a Tarzana reroof over half the roof that names a color without a cool roof rating and no exception, or a fire-zone lot with no Class A statement.
- A plan to lay new shingles over two existing layers or over tile.
- No license number on the bid or contract; California requires it on both.
- A down payment above the limit in Business and Professions Code section 7159.5, which caps it at 10 percent of the contract amount or a fixed dollar amount in that section, whichever is less.
- A contract missing the notice of your right to cancel within three business days (five for a senior citizen), a start date, a completion date or a description of the materials.
- A suggestion that you pull the LADBS permit yourself for work the contractor is doing.
How do you check references and reviews?
Ask for addresses of finished roofs you can see from the street, ideally in Tarzana or nearby Valley neighborhoods and in the material you are considering, and look at the ridges, valleys and wall flashing. Read reviews for how problems were handled, not only the star count. NEMA Roofing holds a 5.0-star rating from 400+ Google reviews.
Talk to a replacement estimator
Tarzana is one of NEMA Roofing’s five Google-verified locations, together with Woodland Hills, Downey, Oxnard and Santa Barbara, and those teams take on replacements in every part of Los Angeles, Ventura, Santa Barbara, Riverside and San Bernardino counties (see our service areas). Our roof replacement service page explains the job from tear-off to final inspection, and our guide to roof replacement materials for Tarzana homes helps you choose the covering. To book an estimate visit, call NEMA Roofing at 818-528-6412.
