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Licensed & Insured. CSLB #1092889 Serving the San Fernando Valley & the Westside Service Areas FAQ Client Support (818) 934-0075
MAMOS Construction & Design

Mamos Construction & Design

Mamos Construction & DesignROOFING
(818) 934-0075
Roofing  ›  San Fernando Valley  ›  Van Nuys

In Van Nuys, most roofs sit on homes built before 1980.

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Joseph will call you at the number you gave within 15 minutes: 8am to 5pm Monday to Thursday, 8am to 2pm Friday. Outside those hours you are first on the list the next morning. Urgent right now? Call (818) 934-0075.

Rather talk now? Call (818) 934-0075

How old your roof really is, from permit records
How many years it has left, checked from the roof itself
Whether your address is in a fire hazard zone
Dated photos and notes, in writing for your insurance agent

If the roof still has good years left, the report tells you.

Roof replacement and free written roof inspections across Van Nuys. The median home in ZIP code 91406 was built in 1965. Valley heat, decades of patching and the city’s re-roof rules all land on the same roof.

EMBERS 010203

Deck, underlayment, then shingles or tile. The underlayment keeps the water out, and you can only check it from up on the roof.

CSLB 1092889Check it yourself at the state license board
5.0 on YelpFrom all seven of our reviews
Free, no obligationYou keep the report either way
Dated photosTaken on your roof, in every report

What we check on a Van Nuys roof

Flat Valley streets, older housing and some of the hottest afternoons in the city.

Heat on the south and west planes

On September 6, 2020 the Van Nuys Airport station passed 115 degrees. Summers like that dry out shingles and crack sealant on the sun side first, so we look there before anywhere else.

Patches on patches

A house from the 1950s or 60s has usually been repaired many times. We map every patch and every layer, because the number of layers decides whether a tear-off is required.

Chimneys after 1994

Masonry chimneys came down across the Valley in the Northridge earthquake. Many were rebuilt or capped, and the flashing where an old chimney meets a newer roof is a seam we always open up.

Attic: open gap around a pipe penetration
Attic: open gap around a pipe penetration. Every report has dated photos like this one, taken in the attic.

Before the rain in Van Nuys

Flat streets, low-slope roofs and older homes. In a strong El Niño winter, water that cannot run off finds a way in.

Low slopes and flat sections

Many Van Nuys ranch homes and apartment buildings have low-pitch or flat roofs. Ponding water after a long storm is what finds a tired seam.

Scuppers and drains

On flat roofs the drains and scuppers carry everything. A season of leaves and dust can block them, and a blocked drain turns a roof into a pool.

Heat-cracked flashing

A summer above 100 degrees opens the sealant around vents, pipes and chimneys. Those gaps stay hidden until the first heavy rain.

Before the first big storm: book the free roof check, or read our winter storm roof guide.

From our roofs

Recent MAMOS roofing work: shingle re-roofs, flat ADU roofs and tile.

Shingle re-roof in progress in Encino, new ridge vents and flashing going in
Re-roof in Encino: new shingles, ridge vents and pipe flashings going on.
Two roofers in harnesses laying architectural shingles over new underlayment
Shingles going down over new underlayment, crew tied off.
Crew rolling out Polyglass underlayment on a new ADU flat roof
ADU flat roof: underlayment rolled out before the cap sheet.
Finished white cap sheet on an ADU flat roof with every vent flashed and sealed
The same ADU roof finished: white cap sheet, every vent flashed and sealed.
Tarzana re-roof finished: new gray architectural shingles, ridge caps and a flashed skylight
Re-roof in Tarzana, finished: new shingles, ridge caps, skylight flashed.
Clay barrel tile roof with a new gutter line along the eave
Clay barrel tile with a new gutter line along the eave.

The rules that apply to a Van Nuys roof

Van Nuys is part of the City of Los Angeles, so these come from LADBS and the LAFD.

PERMIT
LADBS

A re-roof here is permitted by the Los Angeles Department of Building and Safety, not the county. Re-roofs can go through an express permit.

COOL ROOF
Over half

Replace more than 50 percent of the roof and the new covering has to be a CRRC-certified cool roof product.

REPAIRS
10 percent

Since 1989, replacing more than a tenth of the roof covering within twelve months brings the whole roof up to current code, anywhere in the city.

We get on the roof, photograph what we find and write it up.

Get my free report

Seven in ten Van Nuys homes predate 1980.

An older roof is not automatically a failing one. A written report with dated photographs tells you which parts still have life, which parts do not, and what the city will require if you replace it.

71%

of the homes and apartments in ZIP code 91406 were built before 1980, according to the Census Bureau’s American Community Survey, 2020 to 2024.

Finished shingle re-roof in Tarzana, seen from the street
Re-roof in Tarzana, seen from the street. Stripped to the wood deck, synthetic underlayment, then new shingles and ridge caps.

Roof questions in Van Nuys

Repair or replace?

Usually the underlayment decides it, and you have to get on the roof to check that. The report gives you the answer, with photos.

What does a new roof change for my insurer?

Most letters name roof age. The permit and completion papers show the new roof’s date; what the carrier does with them is its decision.

Do I need a cool roof if I only replace part of my roof?

Only when the work covers more than half the roof. Below that, a repair can match what is there. The report tells you which side of that line your job falls on before you commit to anything.

Know what your roof has left before you replace it.

The report covers roof age, layers, remaining life and the permit path in writing. Often a repair buys years before a new roof is needed.

“Joseph was very clear about the process, the costs, the recommendations. … His team was very professional, on time, fast, and respectful, but most importantly, they were good!”

DAVID H.  ·  YELP
ROOF & INSURANCE REPORTREQUEST FORM

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Roof age, remaining life and the city rules for your address, in writing. We call back within 15 minutes: 8am to 5pm Monday to Thursday, 8am to 2pm Friday.

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Mamos Construction & Design
Van Nuys  ·  Lake Balboa  ·  Valley Glen  ·  North Hollywood
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