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Replacement Windows in Pasadena | Premium Install Since 1960

Replacement Windows in Pasadena | Premium Install Since 19602026-05-04T09:23:10-07:00

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Get the Five-Star Treatment

  • Your own personal in-home Design Consultant to help you every step of the way
  • See and touch samples from the comfort of your home to get a feel for how they’ll look
  • Relax with professional measurement and installation for the perfect fit
  • No interest financing options make it simple to get the product you’ve been dreaming of
  • Every product we sell is backed by a lifetime warranty

What’s included in our professional in-home service?

View Our Design Guide

Get inspired for your free in-home consultation with our team by browsing through our Design Guide from the comfort of your laptop or mobile device.

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Why Pasadena Homeowners Choose Window Design Group for Replacement Windows

Pasadena homes are some of the most architecturally significant in Southern California — Greene & Greene craftsman in Bungalow Heaven, Spanish Revival in Linda Vista, Tudor estates near the Rose Bowl, and mid-century moderns scattered through Madison Heights. Replacing windows in Pasadena isn’t a one-size-fits-all job. We work with the City of Pasadena Design & Historic Preservation team, navigate Landmark district reviews, and source frame profiles that match original wood-window aesthetics while adding modern dual-pane efficiency. Whether your Pasadena home is on the National Historic Register or a 1970s Hastings Ranch tract, we measure, source, and install with care.

For over 60 years, Window Design Group has been the trusted name in replacement windows across Southern California. As a family-owned business since 1960, we’ve helped thousands of homeowners in Los Angeles, Ventura County, and Orange County upgrade their homes with energy-efficient, beautifully crafted windows that last a lifetime.

Unlike big-box retailers, every window installation is handled by our own factory-trained crews — never subcontracted. That’s why we can stand behind our work with a lifetime warranty on both products and labor. Our customers consistently rate us 4.8+ stars across Google, Yelp, and the BBB, where we hold an A+ accreditation.

Whether you need vinyl replacement windows, energy-efficient double-pane windows, slider windows, or casement windows, we carry top brands at wholesale pricing — and pass the savings directly to you. Our current promotion offers 40% off premium replacement windows plus 0% interest financing for up to 84 months, making it easier than ever to invest in your home’s comfort, curb appeal, and energy savings.

What Sets Us Apart

  • Family-Owned Since 1960 — Three generations of window expertise, not a franchise
  • BBB A+ Accredited — Consistently top-rated with zero unresolved complaints
  • CSLB Licensed & Insured — California Contractors State License Board verified (Lic. #993370)
  • Lifetime Warranty — Covers both product defects and installation labor
  • Price Promise Guarantee — We’ll match or beat any comparable written estimate
  • Free In-Home Consultations — No pressure, no obligation, just expert advice
  • 0% Financing Available — Affordable monthly payments from 12 to 84 months

Serving Pasadena & Surrounding Areas

Window Design Group proudly serves homeowners throughout Southern California, including:

Los Angeles County: Los Angeles, Burbank, Glendale, Pasadena, Santa Clarita, Woodland Hills, Encino, Sherman Oaks, Northridge, Calabasas, Malibu, West Hollywood, Beverly Hills, Culver City, Torrance, Long Beach, Downey, Whittier, Arcadia, Alhambra, and surrounding communities.

Ventura County: Simi Valley, Thousand Oaks, Moorpark, Camarillo, Oxnard, Ventura, Newbury Park, Westlake Village, Agoura Hills, Oak Park, and surrounding communities.

Orange County: Anaheim, Irvine, Huntington Beach, Newport Beach, Costa Mesa, Fullerton, Orange, Tustin, Mission Viejo, Lake Forest, Laguna Niguel, San Clemente, Yorba Linda, Brea, and surrounding communities.

Not sure if we serve your area? Call us at (800) 577-0643 — we’re happy to check and schedule a free consultation if you’re within our service area.

Recent Pasadena Installations

Recent Pasadena installs include a 1908 Bungalow Heaven craftsman (preserved original muntins, custom-milled wood-clad frames), a Linda Vista Spanish Revival full-home retrofit, and a contemporary glass-wall replacement in San Rafael Hills. “The contractor before us didn’t understand Pasadena historic codes — WDG did. They handled the design review and our windows look original.” — Robert M., Bungalow Heaven. “Our 1925 Tudor near the Rose Bowl needed care, not a tear-out. WDG delivered.” — Sarah K., Linda Vista.

Replacement Window FAQs

How much do replacement windows cost in Southern California?

The cost of replacement windows depends on the window style, material, and size. At Window Design Group, our vinyl replacement windows start at competitive prices with our current 40% off promotion. We offer free in-home estimates so you get an exact quote for your project — no hidden fees, no surprises. Plus, with 0% financing for up to 84 months, monthly payments can be surprisingly affordable.

How long does window replacement take?

Most window replacement projects are completed in just one day. Our factory-trained installation crews work efficiently while maintaining the highest quality standards. For whole-home window replacements (10+ windows), the project typically takes 1-2 days. We’ll give you an exact timeline during your free consultation.

What types of replacement windows do you offer?

We carry a full range of window styles including double-hung windows, slider windows, casement windows, picture windows, bay windows, and garden windows. All of our windows are available in vinyl and come with energy-efficient double-pane Low-E glass to help reduce your utility bills. We also offer custom sizes and configurations for non-standard openings.

Are your replacement windows energy-efficient?

Yes. All of our replacement windows feature Low-E coated, argon-filled dual-pane glass that meets or exceeds California’s Title 24 energy requirements. Many of our customers see a noticeable reduction in their energy bills after upgrading from single-pane or aging aluminum windows. Our windows also carry the ENERGY STAR certification.

Do you offer a warranty on replacement windows?

Absolutely. Window Design Group provides a lifetime warranty that covers both the window product and the installation labor. This is one of the strongest warranties in the industry — and because we’re a family-owned company that’s been in business since 1960, you can trust we’ll be here to honor it.

Do you handle Pasadena historic district reviews?

Yes. We work with Pasadena Design & Historic Preservation reviews and Landmark district approval processes. We submit drawings, source historically-appropriate frame profiles, and adjust specs to satisfy review requirements before fabrication.

Can you match original Pasadena craftsman or Tudor window profiles?

Yes. We source wood-clad and aluminum-clad frames that replicate original muntin patterns, sash dimensions, and frame profiles for Greene & Greene craftsman, Tudor, Spanish Revival, and other period homes. We’ve worked on hundreds of Pasadena historic homes.

Which Pasadena neighborhoods do you serve?

All of Pasadena — Bungalow Heaven, Linda Vista, San Rafael Hills, Madison Heights, Hastings Ranch, the Rose Bowl area, downtown, and surrounding (South Pasadena, Altadena, San Marino-adjacent neighborhoods).