Karl Kardel Co.
Building Solutions Since 1959.
Restoration & Waterproofing. Energy Conservation. Walls & Roofs.
Waterproofing
Karl Kardel Company has spent decades solving Bay Area water-intrusion problems—below-grade walls, leaking balconies, failed deck membranes, and foundation drainage—so Oakland and Pasadena homes stay dry through winter storms.
Deck Building
As a Bay Area deck builder, we design and construct walking decks that discharge water safely, with soldered metal details and compatible plywood and membrane systems built for California weather.
Roofing
Karl Kardel Company provides residential roofing and roof repair across Oakland, Pasadena, and the East Bay, pairing leak diagnosis with durable systems that protect the building envelope from ridge to eave.
Remodeling & ADUs
Our remodeling and ADU team helps Bay Area homeowners add livable square footage—kitchens, baths, accessory dwelling units, and structural reconstruction—while coordinating permits, waterproofing, and exteriors.
Interior & Exterior Painting
Interior and exterior painting from Karl Kardel Company is more than color: specialty coatings, stucco finishes, and weather-resistant systems that protect siding, trim, and historic details in Oakland’s marine climate.
SB721 Inspections
SB721 requires California apartment buildings with three or more units to inspect wood-supported decks, balconies, walkways, and stairs more than six feet above grade; we inspect the structure and the associated waterproofing.
Eco Friendly Construction
The Latest Systems & Technology
High Quality Construction Management
Decades of Local Experience
No Project Too Big Or Small
From a leaking flashing to a full ADU, Karl Kardel Company treats every job as part of the same building envelope.
Founded in 1959 in Oakland with work across the Bay Area, we waterproof walls, decks, and foundations; build and rebuild decks; do roofing and roof repair; remodel interiors and add accessory dwelling units; paint and coat interiors and exteriors; and perform SB721 inspections of decks, balconies, walkways, and stairs — improving the safety and value of your property.
Size is not an issue. We give small projects the same attention to detail as large projects — including flashing, drainage, and material discipline — because water and structure don’t care about the size of the contract.
Whether you need a simple wall coating, a new drain, a safe walking surface, a full compliance report for a large multifamily dwelling or anything in-between, we size the crew and the scope to the problem — not the other way around.
· Free Consultation ·
We’ve Been Building For Over 60 years
We view the building as an envelope of beauty and security from the elements, including waterproofing, drainage, exterior walls, decks, roofing, remodeling and ADUs, interior and exterior painting, and SB721 elevated-element inspections.
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