Compare the highest-rated windows professionals in Sunnyvale, California. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, locally-owned and operated company specializing in premium window and door replacement for residential properties. They are known for their personalized service, attention to detail, and expertise in high-performance, energy-efficient windows that meet California's Title 24 requirements.
As the local branch of a national brand, Renewal by Andersen offers a premium, full-service experience from consultation to installation. They are a strong choice for homeowners seeking a streamlined process and their proprietary Fibrex® composite window material, known for its durability and energy efficiency.
A well-established contractor known for a wide range of window services, including repair, replacement, and installation of various window styles. They work with multiple top manufacturers, providing customers with a variety of options to fit different budgets and aesthetic preferences, including impact-resistant and security windows.
The window market in Sunnyvale is characterized by high demand for quality and energy efficiency. The city's mix of mid-century homes and modern residences drives need for both replacement and new custom solutions. Due to the affluence of the area and the high cost of living, competition is strong among providers, leading to generally high service quality but also premium pricing. **Average Quality:** High. Homeowners expect professional installation, superior materials (often double-paned Low-E glass), and products that meet stringent California energy codes (Title 24). **Competition Level:** High. The market is served by a mix of well-regarded local contractors and branches of large national brands. Reputation and verified reviews are critical differentiators. **Typical Pricing:** Pricing is at a premium compared to national averages. For a standard, full-window replacement project on a single-family home, homeowners can expect a total cost ranging from **$10,000 to $25,000+**, depending on the number of windows, the quality of materials (e.g., vinyl, fiberglass, wood composite), and the complexity of the installation.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Sunnyvale regulations and climate
Get answers to common questions about windows services in Sunnyvale, California.
In Sunnyvale, a full window replacement for a standard single-family home typically ranges from $15,000 to $30,000+, with per-window costs averaging $800-$1,500. Key factors include the number/size of windows, frame material (vinyl, fiberglass, or wood), glass specifications (like double-pane Low-E for our sunny climate), and any required structural modifications. Prices are also influenced by local labor costs and compliance with California's strict energy efficiency (Title 24) and seismic safety codes.
Sunnyvale's Mediterranean climate with warm, dry summers and mild winters makes high-performance, solar-heat-gain-blocking windows essential. You should prioritize dual-pane windows with Low-E coatings and argon gas fills to reduce heat ingress and improve cooling efficiency. Furthermore, all installations must comply with California's Title 24 energy standards, which mandate specific performance ratings for U-factor and Solar Heat Gain Coefficient (SHGC) to minimize energy consumption.
The ideal time is during Sunnyvale's extended dry season, typically from late spring through early fall (May to October), to avoid rare rainy days that can delay exterior work. For a full-home replacement, the project usually takes 2 to 5 days, depending on the number of windows and the complexity of the installation. Scheduling several weeks in advance is recommended, as reputable local installers often have busy schedules, especially leading into the fall.
Always verify the contractor holds a valid California Contractors State License Board (CSLB) license and carries ample insurance and bonding. Look for companies with extensive local experience who can provide references from Sunnyvale or nearby Silicon Valley cities, as they will be familiar with specific local building codes, permit processes (often required for full replacements), and common architectural styles. A detailed, written estimate that includes product specs, labor, disposal, and permit fees is crucial.
Yes, a building permit from the City of Sunnyvale is generally required for full window replacements to ensure compliance with state energy and safety codes. Regarding condensation, while our climate is not humid, improper installation can lead to seal failure and fogging between panes. Choose a certified installer who offers a strong warranty on both the product and their labor. Post-installation, ensure all windows operate smoothly and that the exterior flashing and sealing are meticulously done to prevent air/water leaks.