Business Details
14 Years
experience
Affordable Custom Doors & Windows in San Diego
Discount Door & Window (DDW) is a San Diego-based company dedicated to providing high-quality, energy-efficient doors and windows at competitive prices. Founded by Alan Holsapple after 21 years of experience in the home improvement industry, DDW leverages partnerships with wholesalers to minimize overhead and pass savings to customers. Our product range includes custom-sized retrofit replacement windows, vinyl patio doors, fiberglass entry doors, and solid wood doors, all designed for durability and energy efficiency. We offer lifetime manufacturer warranties on vinyl products and up to 30-year warranties on select doors, ensuring long-term value for homeowners. Our commitment to transparency is reflected in our Learning Center, which provides resources to help customers make informed decisions.DDW prioritizes customer satisfaction through hassle-free purchasing, expert installation services, and a focus on sustainability. With a physical showroom in San Diego, we serve local areas like La Jolla and Carlsbad, as well as nationwide clients through cost-effective shipping solutions. Our team combines technical expertise with personalized service to meet diverse home improvement needs. By emphasizing quality, affordability, and energy efficiency, DDW has become a trusted partner for homeowners seeking reliable door and window solutions.
Services
Doors
Windows
Installation Services
DIY Guides
Tax Rebate Assistance
Details
- Year established: 2012
Highlights and features
- We offer over 20 years of combined industry experience through our founder's expertise.
- Our products feature lifetime manufacturer warranties for long-term reliability.
- We provide energy-efficient solutions that reduce heating and cooling costs.
- Our pre-approved installer network ensures professional installation quality.
- Transparent pricing and a 30-day project completion guarantee streamline your experience.
Associations and certifications
- Energy Star
- NAHB Research Center
What people say
Energy savings
Professional installation
Product quality
Price savings
Quick turnaround
Services
Vinyl Windows
Our vinyl windows combine durability with energy efficiency, featuring double-pane construction and Low-E glass to reduce energy costs. Designed for San Diego's climate, they resist warping and fading while offering noise reduction benefits. Custom sizing ensures perfect fit for both new construction and replacement projects.
Fiberglass Doors
Fiberglass entry doors provide superior security and weather resistance with wood-like aesthetics. Our models feature reinforced lock blocks and composite edges that prevent rotting, offering long-lasting performance in coastal environments. Available in smooth or wood-grain finishes for personalized curb appeal.
Window Installation
Certified installers deliver precise window installations using industry best practices. Our process includes accurate measurements, proper sealing techniques, and post-installation testing to ensure optimal energy efficiency and water resistance for San Diego homeowners.
Door Installation
We offer complete door installation services with pre-approved contractors who specialize in proper alignment and weatherproofing. Our installation process maintains structural integrity while maximizing energy efficiency for both residential and commercial properties.
DIY Guides
Comprehensive video tutorials and measurement guides empower homeowners to install windows and doors independently. Step-by-step resources cover everything from accurate measurements to final installation techniques for successful DIY projects.
People
Alan Holsapple
Founder
With over two decades of experience in Southern California's home improvement industry, Alan established DDW to make quality doors and windows more accessible. His expertise in retrofit solutions and energy-efficient design drives the company's commitment to affordable innovation.
Questions
What energy efficiency benefits do your windows provide?
Our vinyl windows feature Low-E glass and argon gas filling that reduce heat transfer by 30%, lowering energy bills while maintaining indoor comfort.
Do you offer installation warranties?
We provide a lifetime manufacturer warranty on vinyl windows and 10-30 year warranties on doors, plus a separate labor warranty for professional installations.
Can I get custom-sized products?
Yes, we offer windows and doors customized in 1/8 inch increments to fit unique openings, minimizing installation adjustments.
How does the tax rebate process work?
Our Energy Star-certified products qualify for federal tax credits. We provide documentation to help customers claim rebates during tax filing.
What's the delivery timeline?
Local pickup available in 2-3 weeks; shipped orders require 3-4 weeks depending on destination and product customization requirements.
Do you service commercial properties?
Yes, we provide bulk pricing and installation services for commercial buildings needing energy-efficient window and door solutions.
Videos
