ARBORROOFING + WATERPROOFING
Illustrative commercial membrane rooftop overlooking San Francisco Bay

Built for
the weather.

Roofing and waterproofing for custom homes, coastal properties, and complex buildings.

Illustrative imagery

01 / SERVICES

Protection starts at the roofline.

Custom Residential

Standing-seam metal, slate, and low-slope roof systems for new estates and renovations.

Commercial Roofing

Low-slope roof scopes for commercial, mixed-use, and healthcare properties. Scope and site requirements are evaluated project by project.

Waterproofing

Decks, terraces, plazas, and below-grade assemblies. Coordinate drainage and membrane transitions before they are covered.

02 / SYSTEMS & MATERIALS

Roofing and waterproofing.
Specified together.

01 / ROOFING

Architectural & low-slope roofs

Standing-seam metal for custom homes. Heat-welded TPO and PVC for low-slope assemblies, with fleece-backed and PVC/KEE options where specified.

Tapered insulation, compatible cover boards such as DensDeck® Prime, and rated cool-roof products where required. We review the full assembly against the project specifications and applicable code.

02 / WATERPROOFING

Decks, terraces & below grade

Reinforced liquid-applied and sheet membrane systems for balconies, occupied-space decks, and plazas. Compatible PMMA flashing at drains, penetrations, and irregular transitions where specified.

For below-grade scopes, we review pre-applied or post-applied membranes, protection, drainage, and tie-ins at walls and slabs.

System examples are subject to project specifications, substrate compatibility, and manufacturer requirements.

03 / BUILDING TYPES

Silicon Valley & the San Francisco Bay Area.

Images illustrate building types and roof details.

04 / ESTIMATING TECHNOLOGY

From blueprints
to roof surveys.

Illustration of a camera drone surveying a standing-seam metal roof
Illustrative drone survey

Pricing for new construction and existing roofs.

New construction / blueprint takeoffs
Before the roof is built, we price from the current drawing set. We review roof plans, elevations, sections, details, and specifications to quantify slope-adjusted roof area, ridges and valleys, flashings, drainage, and penetrations. The estimate identifies the drawing revision, scope assumptions, and any details that need clarification.
Existing roofs / drone surveys
Commercial drone imagery captures roof planes, penetrations, and hard-to-see transitions. Flights are coordinated with qualified pilots and any required airspace approvals.
Satellite measurements
Aerial and satellite imagery help establish roof area and geometry. We cross-check quantities against plans, drone captures, and field measurements where needed.
Google AI–assisted review
We use Google AI to help organize project information and flag items for review. Our team checks the quantities, scope, and pricing.
Itemized scope and pricing
See the materials, labor, access requirements, and assumptions behind the estimate. Concealed conditions are identified as a separate allowance or exclusion when applicable.
Get an Estimate
Illustration of a roofer rolling a membrane seam

05 / APPROACH

Get the details right early.

Bring the roof plans, elevations, and waterproofing details into the same conversation. Start with drainage, flashing, and transitions so the scope is clear before work begins.

Arbor Homes, Inc. is a general building contractor. Specialty work is performed by appropriately licensed trade contractors under eligible project arrangements.

FOR BUILDERS & OWNERS

Know what’s in the bid.

Scope & alternates

Identify the drawing revision, included assemblies, exclusions, allowances, and alternates so bids can be compared on the same scope.

Sequencing & verification

Review trade handoffs, drainage, and details that will be concealed. Identify submittals and any specified mockups, inspections, or membrane testing before installation.

Warranties & closeout

Confirm available manufacturer coverage and separate workmanship terms in the proposal. Coverage depends on the selected system, installer eligibility, and any required inspections or maintenance.

06 / SERVICE AREA

Serving Silicon Valley & the Bay Area.

Peninsula

Atherton, Menlo Park, Palo Alto, and surrounding communities.

Silicon Valley & South Bay

Los Altos, Mountain View, Cupertino, San Jose, and surrounding communities.

San Francisco

Pacific Heights, Presidio Heights, the Marina, and other city neighborhoods.

07 / PROJECT INQUIRIES

Discuss a project.

For new construction, have the latest plan set, roofing and waterproofing specifications, and bid due date ready. For existing roofs, start with the project address and any available photos or drawings.

LET’S TALK ABOUT YOUR PROJECT

Start the conversation.

Share a few details and our team will follow up.

LICENSE & PROJECT STANDARDS