• We are proud to say that all our installers are AAMA-Certified InstallationMasters (There are only 130 companies with AAMA-certified installers in all of California).  This means consistent quality regardless of which crew comes to your home.  No more hoping for the "A" team.
• We are properly licensed in the state of California. (Lic#801964)
• We carry both liability & workers compensation insurance.
• We have a 10,000 square foot showroom. DWP isn’t going to hide if you have a problem like some companies do.
• We sell over 15 brands of windows & doors. No one else comes close to our selection. Most window companies only feature one or two manufacturers.
• Our Own Platinum Installation Method for Windows - 4 Layers of Protection - Never Leak, Guaranteed!  Our installation process is the best in the industry using only the finest material & installation methods. DWP never cuts corners to make a buck. Remember to ask the other window companies how they are going to install the windows & what materials they will use.
• “AAA Rated” by the Better Business Bureau – Best in the Industry!
• Voted 2007 Best Home Repair Company in Los Angeles by CitySearch.com members.
• 5 Star Rated by Yahoo! Local users.
• Over 8,000 satisfied customers helped us grow from a company of 3 employees in 2000 to over 20 today.  Thank you for your support!
• No high pressure salesman. LOW warehouse prices. Honest people. No sales gimmicks.  Family owned and operated.

We feature replacement vinyl windows from over 15 brands:

Our normal service area is within 30 miles from our store.  Some of the cities we serve: Los Angeles County Alhambra, Altadena, Arcadia, Arleta, Artesia, Avalon, Azusa, Balboa Park, Baldwin Park, Bel-Air, Bell, Bellflower, Bell Gardens, Beverly Hills, Bradbury, Brentwood, Burbank, Cahuenga Pass, Canoga Park, Carson, Chatsworth, Cerritos, Claremont, Commerce, Compton, Covina, Crescenta Valley, Cudahy, Culver City, Diamond Bar, Downey, Downtown Los Angeles, Duarte, Eagle Rock, East Los Angeles, El Monte, El Segundo, Encino, Gardena, Glendale, Glendale(Los Angeles), Glendora, Granada Hills, Hacienda Heights, Hancock Park,  Hawaiian Gardens, Hawthorne, Hermosa Beach, Hidden Hills, Huntington Park , Industry, Inglewood, Irwindale, Knollwood Country Club Estates, La Canada, La Canada Flintridge, La Crescenta, La Habra, La Habra Heights, Lake View Terrace, Lake Balboa, Lakewood,  La Tuna Canyon, La Mirada, La Puente, La Verne, La Verne Heights, Lawndale, Lomita, Long Beach, Los Angeles, Los Feliz, Lynwood, Malibu, Manhattan Beach, Maywood, Mission Hills, Monrovia, Montclair, Montebello, Monterey Park, NoHo Arts District,  North Hills, North Hollywood, Northridge, Norwalk, Pacoima, Palos Verdes Estates, Glendale, Burbank, Downey, Panorama City, Paramount, Pasadena, Pico Rivera, Pomona, Porter Ranch, Rancho Palos Verdes, Redondo Beach, Reseda, Rolling Hills, Rolling Hills Estates, Rosemead, Rowland Heights, San Dimas, San Fernando, San Fernando Valley, San Gabriel, San Gabriel Valley, San Marino, Santa Clarita, Santa Fe Springs, Santa Monica, Sepulveda, Shadow Hills, Sherman Oaks, Sierra Madre, Signal Hill, Silver Lake, Simi Valley, South El Monte, South Gate, South Pasadena, Studio City, Sun Valley, Sunland, Sylmar, Tarzana, Temple City, Toluca Lake, Toluca Woods, Torrance, Tujunga, Upland, Valley Glen, Van Nuys, Venice Beach, Vernon, Walnut, Warner Center, Watts, West Los Angeles, West Hills, West Hollywood, West Toluca, West Walnut, West Covina, West Hollywood, West Whittier, Westwood, Whittier, Winnetka, Woodland Hills

Orange County
Anaheim, Anaheim Hills, Brea, Buena Park, Costa Mesa, Cypress, Fountain Valley, Fullerton, Garden Grove, Huntington Beach, Irvine, La Habra, Lake Forest, La Palma, Los Alamitos, Newport Beach, Orange, Placentia, Santa Ana, Seal Beach, Stanton, Tustin, Villa Park, Westminster, Yorba Linda

San Bernardino County
Alta Loma, Chino, Chino Hills, Colton, Diamond Bar, Duarte, Fontana, La Verne, Montclair, Ontario, Rancho Cucamonga, Rialto, San Dimas, Upland