Roofing

Roofing built for
Southern California.

Roof replacement and re-roofing across Los Angeles and Ventura Counties, specified for sun, wind and wildfire exposure rather than for the mildest possible conditions.

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Roofing in Los Angeles and Ventura Counties

Roofs in this region fail differently than roofs elsewhere. We get very little rain and a great deal of ultraviolet exposure, long dry seasons, seasonal wind events, and in much of Los Angeles and Ventura County a genuine wildfire risk. The result is that roofing materials here age primarily through heat and UV rather than through freeze-thaw, and the failure usually starts at the details rather than in the field of the roof.

The Oak Development re-roofs homes across Calabasas, Malibu, Agoura Hills, Woodland Hills and the surrounding communities. Much of that area sits in a designated fire hazard severity zone, which brings specific requirements for roof assembly class and for ember-resistant detailing at eaves and vents.

We are licensed, bonded and insured under California license #1094201 and we permit roofing work where the jurisdiction requires it.

Aerial view of a hillside estate in Los Angeles County showing roofline and roof detailing
Hillside estate, aerial view. Roofline, flashing details and drainage are planned together on properties like this.

What the work includes

Every project is scoped in writing before it begins. The items below are the elements we most commonly deliver on roofing projects.

Full roof replacement

Tear-off to the deck, deck inspection and repair, new underlayment and new roof covering, rather than an overlay that hides what is underneath.

Tile roofing

Concrete and clay tile, including lift-and-relay where the existing tile is sound and only the underlayment beneath it has reached the end of its life.

Composition shingle

Architectural and dimensional asphalt shingle systems installed to manufacturer specification so the warranty stands.

Flat and low-slope

Single-ply and modified bitumen systems for flat sections, decks and modern low-slope architecture, with attention to drainage and ponding.

Flashing and detailing

Valleys, headwalls, sidewalls, chimneys, skylights and penetrations, which is where the large majority of roof leaks actually originate.

Ventilation

Balanced intake and exhaust ventilation so the assembly runs cooler, which extends the life of both the roofing material and the deck below it.

Fire-zone assemblies

Class A assemblies and ember-resistant eave, vent and edge detailing for properties in designated fire hazard severity zones.

Gutters and drainage

Gutter, downspout and drainage work coordinated with the roof so water is carried away from the foundation.

How the project runs

The same sequence on every project, so you always know what happens next and who is responsible for it.

01

Roof assessment

We inspect the roof, the flashing details and, where accessible, the underside of the deck and the attic. You get an honest read on whether you need a full replacement, a partial repair, or simply monitoring. This assessment is free.

02

Specification and quote

We specify the assembly appropriate to your roof pitch, exposure and fire zone, and provide a written scope that states the material, the underlayment and the flashing work included.

03

Permitting and scheduling

We pull the permit where required and schedule the work around weather windows, since a tear-off commits the house to being open for a period.

04

Tear-off and deck inspection

The existing covering comes off and the deck is inspected. Damaged sheathing is replaced. This is the point at which hidden problems surface, and we show them to you rather than covering them.

05

Underlayment and flashing

New underlayment goes down and flashings are installed or replaced. This layer, not the visible roofing, is what actually keeps water out.

06

Roof covering and final inspection

The finished covering is installed, the site is cleaned including magnetic sweeping for fasteners, and the work is inspected and walked with you.

Re-roofing versus overlay

It is possible in some cases to install a new layer of shingle over an existing one. It is faster and cheaper, and we generally advise against it.

An overlay leaves whatever is wrong with the deck and the old underlayment in place, permanently and invisibly. It adds weight to the structure, it traps heat which shortens the life of the new material, and it makes future diagnosis of a leak considerably harder. It also often shortens or voids the manufacturer's warranty on the new material.

A full tear-off costs more and takes longer, and it is the only approach that lets anyone actually see the condition of the deck and the flashing details. Given how long a roof is expected to last, we think that visibility is worth paying for, and we will tell you when we think a repair rather than a replacement is the honest answer.

Where we work

The Oak Development is based in Calabasas and takes on roofing projects throughout Los Angeles and Ventura Counties, including:

Calabasas Woodland Hills Westlake Village Thousand Oaks Agoura Hills Hidden Hills Malibu Encino Sherman Oaks Tarzana

Common questions

How do I know whether I need a new roof or a repair?

Age, the condition of the flashing details and the state of the deck matter more than a single visible problem. A localised leak around a chimney or skylight is often a flashing repair. Widespread granule loss, brittle or cracked tile, sagging, or moisture in the attic usually point to replacement. We give you the honest answer at the assessment, including when the answer is that the roof has life left in it.

Does my property need a fire-rated roof assembly?

Much of Los Angeles and Ventura County sits within a designated fire hazard severity zone, and those properties have requirements covering roof assembly class and ember-resistant detailing at eaves and vents. We confirm the designation and the current requirement for your specific address before specifying the assembly.

How long does a re-roof take?

It depends on the size and pitch of the roof, the material, and what we find when the old covering comes off. Tile lift-and-relay and full tear-off replacements run on different schedules. Because the house is open during tear-off, we schedule around the weather and give you the expected window in writing.

Will you work with my insurance claim?

We can document the condition of the roof and provide a detailed written scope suitable for submission to an insurer. The claim itself is between you and your carrier, but we are used to supplying the documentation adjusters ask for.

Do you handle gutters and drainage as well?

Yes. Gutters, downspouts and the drainage path away from the foundation are part of the same water management system as the roof, and we would rather address them together than have them handled by two separate trades.

Other services

Home Additions Room additions. Kitchen Remodeling Full-service kitchen overhauls in Calabasas and throughout Los Angeles and Ventura Counties. Commercial Construction Tenant improvements.

Ready to start your project?

Get a free, no-obligation quote. We respond within 24 hours.

Get a Free Quote (818) 239-6685