Ganahl Lumber Company - Buena Park

Diamond Rating

To earn the Showroom Diamond, the dealer must have a showroom with a minimum number of Milgard products on display.
To earn the Web-Site Diamond, the dealer must have their own Web-site with information about the Milgard products and the services they sell.
To earn the AAMA Certified Diamond, the dealers must have at least one member from each of their installation crews complete the AAMA Installation Masters training and pass the AAMA Certified Install test.
To earn the Product Knowledge Diamond, all Dealer Sales Consultants must pass a series of standardized Milgard administered tests demonstrating Milgard product knowledge.





6586 Beach Blvd
Buena Park, CA 90621
United States

Store Hours

Monday6:00am - 6:00pm
Tuesday6:00am - 6:00pm
Wednesday6:00am - 6:00pm
Thursday6:00am - 6:00pm
Friday6:00am - 6:00pm
Saturday7:00am - 4:00pm

Services Offered

Has Showroom
MGWS Dealer
New construction
Offers installation

About Us

Ganahl Lumber Company is the oldest lumberyard in all of California. Others have come and gone but we are still here prospering! It all began in 1884, when an Austrian immigrant named Christian Ganahl and his brother Frank moved to Los Angeles from St. Louis where they were shopkeepers. Building was flourishing in L.A. and many people were moving west because the transcontinental railroad was offering trips to California for $1.00. And a new industry was developing - oranges from Southern California won first prize at the International Exposition in New Orleans, defeating Florida oranges. Los Angeles had a growing population of 22,000, and Christian Ganahl seized the opportunity to purchase a lumber company he named the C. Ganahl Lumber Company. A few years later, Christian made a daring move and opened another lumberyard in the area. Although his "branch yard theory" was a new business idea, it took off and eventually he had several yards located throughout the Los Angeles area, including one he opened in Anaheim in 1904. Up to this point the C. Ganahl Lumber Company sold only lumber and cement.

The Early 20th Century

Two years after the Anaheim operation opened, Christian took another risk and added a new product - plywood. In 1921, Christian's nephew, Ernest, bought a part interest in the Anaheim yard partnering with Charles Grimm, the yard's manager, and calling it the Ganahl-Grimm Lumber Co. In 1928, they built a second store in Lake Arrowhead. This yard thrived during the depression years because the movie industry was booming and Hollywood movie stars were building summer homes there. Following the death of Mr. Grimm in the 1930's, Ernest Ganahl bought out the Grimm family's interest and changed the name to the Ernest Ganahl Lumber Company. He also made his contribution to the changing inventory of the lumber business by adding hardware to Ganahl's growing product line.

Post World War II

After World War II ended, Ernest's son, John, returned home and joined the family business. In the late 40's there was a growing interest in millwork products so Ganahl opened a mill division. John became involved in manufacturing cabinets for schools being built in the area. Ernest died in 1959 and John became President of the company. In 1964, John changed the name to Ganahl Lumber Company. It was always customary for the Ganahl children to spend time working in the family business. John's sons and daughters worked at the lumberyard part-time and during summers while they were going to school. John's son, Peter, joined the company full-time in 1968 and became the President of the company in 1973 upon the death of his father. That same year, John Jr. and his brother Andrew joined the company. Peter and John have continued their great-grandfather's "branch theory" and have acquired other locations throughout the Orange County area in the last few decades, making the company the ten-store business it is today.

Awards Received

Areas Served

Buena Park, Arcadia, Monrovia, Pasadena, La Habra, La Habra Heights, Cypress, Anaheim, Santa Ana, Yorba Linda, La Mirada, Whittier, Fullerton, Brea, Placentia, Rowland Heights, Hacienda Heights, Hawaiian Gardens, Walnut, El Monte, Temple City, Norwalk, Cerritos, Los Alamitos, Rossmoor, Seal Beach, Long Beach, Westminster, Huntington Beach, Garden Grove, Orange, Villa Park, Tustin, Corona, Artesia, Stanton, Bellflower, Downey, Lakewood, Signal Hill, Costa Mesa, Fountain Valley, Newport Beach, Irvine, Norco, Diamond Bar, La Puente, Los Angeles, Hawthorne, Marina Del Ry, Manhattan Beach, Hermosa Beach, Torrance, Palos Verdes, and Orange County

6586 Beach Blvd, Buena Park, California, United States 90621


Ganahl Lumber Company - Buena Park

See All Reviews
Ganahl Lumber Company - Buena Park is rated 5.0 out of 5 by 23.
Rated 5 out of 5 by from Thanks to the Ganahl Lumber team! Andy in Doors and Windows in Buena Park is exceptionally professional and highly knowledgeable. He carefully explained product details to meet my door replacement needs. Joe also was very helpful by setting aside door hardware on the weekend during Andy's off-hours. You will not find a better source for construction and designer supplies, service and advice
Date published: 2022-09-16
Rated 5 out of 5 by from Knowledgeable Staff Our neighbor recommended Ganahl Lumber for our windows. We were completely satisfied with the sales staff, Thomas was our sales person. Great price and very knowledgeable on their products. They even provided us with a licensed contractor who installed our windows.
Date published: 2022-06-11
Rated 5 out of 5 by from Great Service - Thomas Yunker at Ganahl-Buena Park Thomas at Ganahl Buena Park always has our back. He monitors our orders every day. When lead times are pushed out, he let's us know right away. These are challenging times for manufacturing and retail. Thomas Yunkers understands great customer service is the key to success in this environment.
Date published: 2022-04-08
Rated 5 out of 5 by from Excellence in deliverables Ganahl's staff takes a genuine interest in your project and needs. Stocks and and source high quality materials and products that you wont find in the big box stores. They will pull your orders in advance for will call pick up or deliver them to your job.
Date published: 2022-04-06
Rated 5 out of 5 by from Great Customer Service This will be our third time ordering Millard windows with Thomas. We are thankful for his expertise, and his forethought, which helped us upon this third trip better plan for the needs of our newest project. We love the showroom at Ganahl, and the organization of the product lines, which far surpass any big box stores. We came once again for the quality that the Millard product line offers, and the great customer service we have repeatedly received at Ganahl Lumber.
Date published: 2021-05-03
Rated 5 out of 5 by from Thomas is incredible with Milgard products We order a lot of windows through Thomas at Ganahl Buena Park. He's always on top of it and very customer oriented. Very organized. Knows his product. Can't say enough good about him.
Date published: 2021-02-02
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