About

Building it better starts with people.

We are Filanc.

Experience. Collaboration. Accountability.
That’s why clients choose Filanc.

Since 1952, Filanc has built water and environmental infrastructures communities rely on every day. Day after day, our expert teams turn complex goals into proven results.

Trusted across Colorado, Arizona and California.

Filanc builds, renovates and expands water and wastewater treatment, conveyance, reuse and biosolids facilities across the Western United States. Since 1952, we’ve specialized in projects that protect vital resources and strengthen the communities that depend on them.

With self-perform craft teams and practical experience on every job, we tackle everything from urgent repairs to major facility expansions. We deliver through collaboration, clear communication and an unwavering commitment to systems that last.

Regional focus. National resources. Shared values.

Since joining Alberici in 2023, Filanc combines the personalized service, specialized expertise and local understanding clients know us for with the strength and resources of one of the largest construction companies in North America. This close partnership enhances client outcomes by bringing together broader capabilities, shared values and a deep commitment to the work we do every day. Together, we work safely, value diversity, serve humbly, execute with integrity, solve creatively and engage fully to earn the trust of our clients and partners every day.

Building on a legacy of performance.

Started by Jack Filanc on the belief that good work builds lasting trust, the company has grown from a family venture into a regional leader in water and environmental infrastructure. Three generations later, that same spirit of integrity, teamwork and pride connects more than 300 people across California, Arizona and Colorado.

The original Weardco founders planned getaways with their spouses.

1952

Founded as Weardco by Dean Wearda, Barney Daxon, Bob Butler and Jack Filanc, laying the foundation for what would later become Filanc and its long-standing role in water and wastewater infrastructure.

Weardco’s first project was for the Delano Earlimart Irrigation District as a subcontractor to United Concrete Pipe Corp. Pictured here are Jack Filanc (top left) and Barney Daxon (bottom left).

1953

Entered the water infrastructure industry with first project for the Delano Earlimart Irrigation District.

Weardco secures their first joint venture project, the Texas Hill Canal project for the Bureau of Reclamation in Yuma, AZ.

1955

Formed first joint venture for the Texas Hill Canal project with the Bureau of Reclamation, signaling early growth and expanding capability.

Original Weardco office in Santa Fe Springs, CA.

1956

Opened original office in Santa Fe Springs, California.

Pouring concrete for the City of Burbank, Kenneth Road MWD Pump Plant project back in the day when hard hats weren’t required.

1957

Completed the Burbank Kenneth Road MWD Pump Plant, adding to a growing portfolio of municipal water infrastructure work.

Weardco constructs the Santee Water Reclamation Facility, which earns international fame as the first such facility in the world where treated water allows human contact.

1967

Constructed the Santee Water Reclamation Facility, a groundbreaking project recognized as the first in the world designed to allow recreational contact with treated water.

Weardco built the Oso Creek Reclamation Plant for the Santa Margarita Water District, which incorporated an innovative biological treatment process with tertiary filtration.

1977

Advanced treatment capabilities with the Oso Creek Reclamation Plant for Santa Margarita Water District, which incorporated an innovative biological treatment process with tertiary filtration.

Salvaging and dismantling a tank in Washington, D.C.

1982

Delivered the company’s first design-build project, Trabuco Canyon, marking a major shift in project delivery and technical growth.

The company moves its headquarters to Olive Avenue from Santa Fe Springs in Los Angeles County to Vista in San Diego County.

1982

Relocated headquarters to Vista, California, expanding presence in Southern California.

1990

Jack Filanc acquired full ownership and rebranded the company as J.R. Filanc Construction Company, now known as Filanc.

The company moves its headquarters from Vista to North Avenue in Oceanside, CA.

1990

Moved headquarters to Oceanside, California, supporting continued growth and positioning the business for its next chapter.

The Western Riverside County Regional Wastewater Reclamation Plant project featured a 2 ½ mile pipeline from the plant to the outfall in the Santa Ana River.

1996

Completed the Western Riverside County Regional Wastewater Reclamation Plant project, including a 2.5-mile pipeline to the Santa Ana River, demonstrating the capacity to deliver larger and more complex regional infrastructure.

The Filanc ‘Gator makes his debut as the official mascot of the Repair and Maintenance Division (originally the Plant Services Division). The inspiration comes from the recent media accounts of alligators occupying storm drains in New York City.

1997

Continued expansion of the Repair and Maintenance Division, including the debut of the Filanc Gator, inspired by media accounts of alligators occupying storm drains in New York City.

Filanc’s first project for the Helix Water District, RM Levy Water Treatment Plant Upgrade and Expansion project.

1999

Began a long-term relationship with Helix Water District through the R.M. Levy Water Treatment Plant Upgrade and Expansion project.

Filanc completes the first ever design-build pump station and conveyance project for the City of San Diego.

2005

Completed company’s first design-build pump station and conveyance project for the City of San Diego, expanding design-build experience into a new project type.

Filanc refurbished and move into our 50,000 sq. ft. headquarters in Escondido, CA.

2006

Moved headquarters to Escondido, California, reflecting both continued growth and long-term investment in the future.

2008

Opened a new office in Phoenix, extending reach into the Arizona region.

Filanc completes the $105.3 Million Fresno/Clovis Regional Wastewater Reclamation Facilities Organic Upgrade project; the largest in Filanc history.

2010

Completed the $105.3 million Fresno/Clovis Regional Wastewater Reclamation Facilities Organic Upgrade, the largest project in company history at the time and a new benchmark in scale.