The Best Window Installers in Walnut, CA

Compare the highest-rated windows professionals in Walnut, California. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

The Window & Door Shop

4.8
(180 reviews)
Verified

A family-owned and operated business specializing in high-quality window and door replacement for residential properties. They are highly regarded for their personalized service, attention to detail, and expertise in energy-efficient solutions from leading brands like Milgard and Anlin.

733 N. Diamond Bar Blvd, Diamond Bar, CA 91765 (Located just minutes from Walnut)

Specialties & Features

Energy-efficient windows
New window installation
Custom window solutions

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Clearview Windows & Doors

4.7
(150 reviews)
Verified

Clearview has a strong reputation in the Inland Empire and San Gabriel Valley for professional window replacement and repair. They focus on providing a seamless customer experience from consultation to installation and offer a wide range of products, including impact-resistant and security windows.

320 S. Lemon Ave, Unit #4416, Walnut, CA 91789 (Mail center address, but serves Walnut directly)

Specialties & Features

Window repair services
Security windows
Residential window replacement

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

US Window & Door

4.6
(220 reviews)
Verified

A well-established contractor known for handling large-scale window replacement projects and custom solutions. They work with both homeowners and builders, offering robust products suitable for various architectural styles found in Walnut, from modern to traditional.

946 S. Via Rodeo, Placentia, CA 92870 (Serves the entire Greater LA area, including Walnut)

Specialties & Features

Custom window solutions
New window installation
Storm windows and security windows

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

Why These Are the Top Windows Contractors in Walnut

The window market in Walnut, California, is characterized by high-quality service demands driven by the city's affluent community and mix of newer developments and older, well-maintained homes. Homeowners are highly focused on **energy efficiency** due to rising utility costs and California's strict building codes, making dual-pane, low-E glass windows the standard. The competition level is **moderate to high**, with several reputable regional contractors vying for business, which helps maintain strong service quality. Pricing is typically at a **premium level**; a full home window replacement for an average-sized house can range from $15,000 to $40,000+, depending on the window brand (e.g., Milgard, Anlin, Marvin) and the complexity of the installation. Repair services and single-window replacements are more accessible, generally ranging from $300 to $1,000 per window. Security and storm windows are also a growing niche due to occasional extreme weather events and homeowner safety concerns.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Walnut regulations and climate

Frequently Asked Questions About Windows in Walnut

Get answers to common questions about windows services in Walnut, California.

1What is the typical cost range for a full home window replacement in Walnut, and what factors influence the price?

In Walnut, a full home window replacement typically ranges from $10,000 to $25,000+, depending on the home's size and window count. Key cost factors include the choice of materials (vinyl, fiberglass, or wood), energy-efficient features like Low-E glass for our sunny climate, and the complexity of installation in older homes that may require structural adjustments. Local material and labor costs also contribute to the final price.

2Are there specific permits required for window installation in Walnut, and does my provider handle that?

Yes, the City of Walnut's Building and Safety Division generally requires a permit for window replacements that involve any structural change, such as altering the opening size. A reputable local installer will typically manage the entire permit process, including pulling the permit and scheduling required inspections, ensuring your project complies with the California Building Code (CBC) and local ordinances.

3How does Walnut's climate affect the type of windows I should choose?

Walnut's hot, dry summers and mild winters make solar heat gain a primary concern. We highly recommend windows with dual-pane glass, a Low-E (low-emissivity) coating to reflect infrared heat, and argon gas fill for superior insulation. These features are crucial for reducing cooling costs and protecting your interior from UV damage, making them a smart investment for both comfort and long-term energy savings under the California sun.

4What should I look for when choosing a window installation company in Walnut?

Prioritize companies that are licensed (check their CSLB number), insured, and have strong local references in Walnut or the surrounding San Gabriel Valley. Look for providers with specific experience in our area's housing styles, from newer developments to older ranch homes, and who offer robust warranties on both product and labor. Always verify they will handle local permitting.

5What is the best time of year to schedule a window installation in Walnut, and how long does the project usually take?

The ideal time is during our mild fall or spring seasons to avoid summer heat and the rare winter rain. For a standard single-family home, the installation itself typically takes 1-3 days. However, the total project timeline from measurement to completion can be 4-8 weeks, factoring in the manufacturing lead time for your custom windows and the scheduling of any required city inspections.