Compare the highest-rated windows professionals in Altadena, California. All contractors are licensed, insured, and verified through our rigorous screening process.
Renewal by Andersen is a premium, nationally recognized provider that operates a local branch serving Altadena. They are a full-service company specializing in the replacement of existing windows with their own proprietary, high-performance Fibrex® material. They handle the entire process from in-home consultation to professional installation.
Pella is another leading national manufacturer and installer with a strong local presence in Southern California. Their Pasadena-adjacent showroom makes them a go-to choice for Altadena homeowners seeking brand-name quality, a wide range of styles, and expert installation services for both replacement and new construction.
A highly-rated local contractor based in nearby La Crescenta-Montrose. They are a versatile general contracting company with a specific and renowned expertise in window and door installation and repair. They are an excellent choice for personalized service, repairs, and working with a variety of window brands and custom requests.
** The window market in Altadena is characterized by high quality and premium pricing, reflective of the community's affluent and historic nature. Many homes are mid-century modern or older, creating a strong demand for custom, energy-efficient replacement windows that preserve architectural integrity while modernizing performance. The competition level is high, but it is a market dominated by established, reputable providers rather than low-cost, high-volume companies. Homeowners expect professional consultation, superior materials (e.g., double-pane low-E glass, durable frames like Fibrex or vinyl-clad wood), and flawless installation. Typical pricing for a full home window replacement in Altadena is a significant investment, often ranging from **$15,000 to $40,000+**, depending on the number of windows, the quality of materials (e.g., Andersen, Pella, Marvin), and the complexity of the installation. Repair services and single-window replacements are more accessible, typically ranging from **$300 to $1,500 per window**. The top contractors are consistently in high demand, so scheduling consultations and installations often requires advanced booking.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Altadena regulations and climate
Get answers to common questions about windows services in Altadena, California.
For a standard single-family home in Altadena, a full window replacement typically ranges from $15,000 to $30,000+, depending on the number of windows, materials (vinyl, fiberglass, or wood), and energy efficiency ratings. Costs are influenced by California's Title 24 energy standards, which require high-performance glazing, and potential seismic retrofitting considerations for older homes. Always get 3-5 detailed, itemized quotes from local, licensed contractors for an accurate comparison.
Yes, the City of Los Angeles Department of Building and Safety (LADBS) oversees permits for Altadena. A permit is generally required if you are altering the window's framing or changing its size. A reputable, local installer will typically pull all necessary permits on your behalf, which is a key sign of a professional service. This ensures the work complies with California's strict building codes for safety, energy efficiency, and emergency egress.
Altadena's warm, dry summers and mild but occasionally chilly winters make dual-pane, Low-E coated windows essential. This glazing reflects infrared heat to keep your home cooler in summer and retains interior warmth in winter. Given the high sun exposure, look for windows with a low Solar Heat Gain Coefficient (SHGC) to reduce cooling costs and protect interiors from UV fading. Proper installation is also critical to seal against seasonal Santa Ana winds.
The ideal installation period is during our mild, dry seasons: late spring (April-May) or early fall (September-October). This avoids the peak summer heat, which can be uncomfortable for workers and homeowners with windows removed, and the (rare) winter rains. Scheduling well in advance is crucial, as reputable local contractors often book several weeks or months out, especially before the hotter summer months when demand increases.
Prioritize contractors who are licensed (check their CSLB number), insured, and have extensive local experience in Altadena's varied architecture, from historic craftsman homes to mid-century moderns. They should understand local hillside ordinances and fire safety requirements for defensible space. Always ask for local references, verify they handle LADBS permits, and ensure their warranty covers both product and labor for the long term.