Straight answers before you order.

Do you offer free estimates?

Initial estimates based on the photos, dimensions, or plans you share are free. A site consultation fee applies when we visit to take measurements and prepare the detailed project quote; it is credited back in full when you move forward. Start your estimate.

What is the lead time for window and door orders?

Lead time varies by manufacturer, product line, and even the shape and size of the units, so we confirm timing with your quote. Standard lines usually arrive sooner than custom shapes and specialty glass — ask us for current lead times on the specific products you're considering.

Can I buy products only, or include installation with my order?

You can purchase products only or include installation with your new window, door, or skylight order. We do not offer standalone repair, maintenance, or caulking services. Service is reserved for existing Lion projects. Read our Retrofit & Expectations guide to understand the installation methods and finished appearance.

What types of windows and doors do you offer?

We offer a wide range of windows and doors from top manufacturers like Milgard, Pella, and LaCantina. Our selection includes vinyl, fiberglass, aluminum, wood-clad, and specialty options to suit any project. See what makes each one different on our brand pages.

Are your products energy-efficient and Title 24 compliant?

It depends on the specific product, but generally yes — most of our products meet or exceed California Title 24 energy efficiency standards. Options with Low-E glass, argon gas, and thermally broken frames are available. Some items require weighted-average calculations across the project to comply with Title 24.

Do you offer financing or promotional deals?

We don't offer financing. Manufacturers occasionally run rebates or seasonal promotions — ask us what's currently available when you request your quote.

What is your warranty policy?

Product warranties are provided by the manufacturer. Coverage, exclusions, and length vary by manufacturer and product line. Choose a manufacturer from the homepage logos to review its product information and warranty links. For a question about an existing Lion project, contact our existing-project support team.

Can you match existing windows or doors for remodels or additions?

In most cases, yes — or close. We'll do our best to match the style, finish, and grid patterns of your existing products, especially if you know the original brand and model.

What areas do you serve?

We are based in West Los Angeles and serve residential and commercial clients throughout Los Angeles County and surrounding areas. Product-only sales are available nationwide.

What is the difference between single glaze, dual glaze, and triple glaze windows?

Single glaze: a single pane of glass. Rarely used in modern construction because of poor insulation and noise reduction, and it doesn't meet current energy efficiency standards in most areas.

Dual glaze (double pane): two panes of glass separated by a sealed air or gas-filled space, often argon. This is the most common glazing for residential windows today — better insulation, less noise, and better energy efficiency.

Triple glaze (triple pane): three panes of glass with two sealed spaces between them. Even better thermal performance and sound reduction, but heavier and more expensive — most often used in extreme climates or maximum-performance projects.

Dual glaze is the standard for most Los Angeles homes. We'll tell you honestly where triple glaze is worth it and where it isn't.

Do you repair windows or replace just the glass?

We sell complete windows, doors, and skylights. We do not offer standalone repair, glass-only replacement, maintenance, or caulking services. Service requests are for existing Lion projects only. If you have a question about a past Lion order or installation, use Existing Project Support.

Can I visit your showroom?

Yes — and it's the fastest way to compare styles side by side. Visits are by appointment so the right person is here to walk you through products. Choose “Schedule a showroom visit” on the contact page and include a preferred day and time, and we'll confirm by phone or email.

Which brands do you carry?

Milgard, Fleetwood, LaCantina, Pella, JELD-WEN, All Weather, and VELUX skylights. Each brand page covers the materials, series, and warranty coverage we work with most.

How long does installation take?

Installation duration depends on the number and size of the units, installation method, site access, and existing opening conditions. We confirm the schedule for your specific project. Product lead times also vary by manufacturer, product line, size, and shape.

Do you work with builders, contractors, and architects?

Yes. We help builders, contractors, and architects with product selection and specifications for their window, door, and skylight orders. Choose your role at the start of the estimate form, or send a message through the contact page.