Ganahl Lumber Company - Los Alamitos

Diamond Rating

To earn the Exceptional Consumer Satisfaction Diamond, the dealer must have 5 or more reviews within the last year on and maintain an average of 4.5 stars or higher.
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.





10742 Los Alamitos Blvd
Los Alamitos, CA 90720
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 - 6:00pm

Services Offered

Essence Dealer
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

Anaheim, Capistrano Beach, Los Alamitos, Buena Park, Laguna Beach, Costa Mesa, Hawaiian Gardens, Garden Grove, Long Beach, Seal Beach, Manhattan Beach, Torrance, Palos Verdes, Leisure World, Sunset Beach, Huntington Beach, Lakewood, Artesia, Cerritos, Buena Park, Stanton, Anaheim Hills, Fullerton, Anaheim, Newport Beach, Corona Del Mar, Balboa, Irvine, Laguna Beach, Laguna Woods, Laguna Niguel, Woodbridge, Fountain Valley, Santa Ana, Orange , Long Beach , Rancho Palos Veres , Westminster , Bellflower , Downey , Norwalk , Whittier , Torrance , Palos Verdes Estates , Hermosa Beach , Yorba Linda , Orange , Costa Mesa , Irvine , Tustin , Brea , Newport Beach , Laguna Hills , Fountain Valley


Ganahl Lumber Company - Los Alamitos

See All Reviews
Ganahl Lumber Company - Los Alamitos is rated 5.0 out of 5 by 8.
Rated 5 out of 5 by from Tuscany Milgard Windows Jan '19 we purchased 12 Milgard Tuscany windows (Espresso color) for our home at Ganahl Lumber. We are extremely happy with the process and the product. Our salesperson was knowledgeable, professional and patient with us. One of the best things about shopping at Ganahl Lumber is their showroom of doors and windows. We will continue to work with our salesperson for more windows and doors to finish our project.
Date published: 2019-05-29
Rated 5 out of 5 by from Love my windows and doors I purchased my Milgard windows and doors from Ganahl Lumber Los Alamitos and had a great all around experience.
Date published: 2019-05-23
Rated 5 out of 5 by from Excellent Customer Service!! As a Custom Home Builder and Remodeling Contractor located in this area for over 30 year, I recommend these windows to my customers. They are our standard "Go To" window because they offer our customers great value at a good price point. They also have many options to upgrade, lifetime warranty on the glass and they have a good looking appearance for all styles of homes. Eddie
Date published: 2019-05-23
Rated 5 out of 5 by from Great customer service and salesman I’m a contractor and have been using ganahl for all my contracting needs. Their service is exceptional and I’ve always had a good experience with them!
Date published: 2019-05-23
Rated 5 out of 5 by from Great customer service I have installed the windows for the last 5 years.
Date published: 2019-05-08
Rated 5 out of 5 by from Quick Customer Response Time! Ganahl in Los Alamitos is fantastic!! I use Ganahl specifically for windows and doors and have placed many large orders here. Miriam is my go-to gal for all window and door projects! I've sent many clients directly to her and she does great with the communication and clarification of each order. Thanks again Ganahl! Wright Way Builders
Date published: 2019-04-25
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