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Energy Efficiency


Product Spotlight: Milgard's New 4SG Spacer System, Now Standard on C700 Fiberglass Windows
Most people don't think much about the edge of a window's glass. But that thin strip between the panes, called the spacer, does a lot to keep a window sealed, efficient and comfortable for years. Milgard has upgraded it on their C700 Fiberglass Series windows, and it's a change worth knowing about. What's New? Milgard is now building C700 Fiberglass windows with a black thermoplastic spacer system called 4SG. It's standard on these styles: Single-Hung Casement Awning Horizont
Lion Windows & Doors
Oct 12 min read


Dual-Pane or Triple-Pane? Which Window Glass Package Does Your West LA Home Actually Need?
If you're replacing windows in West LA, you'll spend most of your time choosing a frame — vinyl, aluminum, or fiberglass — and a style. Then, near the end, someone hands you a list of glass options, and suddenly the quote moves by thousands of dollars. That list is the glass package, and it's doing more work than people expect. The frame holds the window together, but the glass is most of what you're actually looking through and living behind. It's what decides whether the we
Lion Windows & Doors
Aug 75 min read


Replacing Windows in LA in 2026? New Energy Rules Just Changed the Game
Any window from a reputable company will come with a lable If you're planning a window replacement in Los Angeles this year, there's one thing you need to know before you shop for a single pane of glass: the rules changed on January 1, 2026. California's updated Title 24 energy code raised the bar on what counts as a legal, permit-ready window. And here's the part that catches homeowners off guard — many of the windows sitting on shelves at big-box stores no longer qualify. I
Lion Windows & Doors
Jul 143 min read


San Fernando Valley Heat: Window Upgrades That Help Your Home Stay Comfortable
San Fernando Valley summers are no joke. Long stretches of high heat, intense afternoon sun, and warm evenings can make certain rooms feel impossible to cool. If your A/C runs constantly but comfort still feels uneven, your windows may be a big part of the problem. The right upgrades can reduce heat gain, improve indoor comfort, and help your HVAC system work more efficiently. Why Valley Homes Heat Up So Fast Three things usually drive indoor heat in the San Fernando Valley:
Lion Windows & Doors
Mar 102 min read


Winter-Proof Your Home: Essential Tips for Windows and Doors
As winter draws near, it's crucial to prepare your home for the cold. Your windows and doors play a significant role in maintaining a comfortable indoor temperature. Heat loss through these entry points can lead to higher energy bills and an uncomfortable environment. In this post, we will share actionable tips to winter-proof your home's windows and doors, helping you stay warm all season long. Assessing Your Windows and Doors Start by examining your windows and doors for an
Lion Windows & Doors
Sep 8, 20253 min read


Transform Your Home into a Cool Oasis This Summer with Energy-Efficient Window Upgrades
As summer approaches, the heat can quickly turn your comfortable home into an uncomfortable sauna. You might be looking for ways to stay cool without driving up your energy bills with air conditioning. Fortunately, energy-efficient window upgrades can help! In this post, we will discuss how these upgrades can make your home cooler, more comfortable, and even add value. The Importance of Energy-Efficient Windows Energy-efficient windows are engineered to minimize heat transfer
Lion Windows & Doors
Aug 12, 20253 min read


Upgrade Your Home with Dual-Pane Energy-Efficient Windows
Are you still dealing with outdated, single-pane windows that let in drafts, noise, and high energy bills? If so, now is the perfect time to consider upgrading to dual-pane energy-efficient windows. Not only do these modern windows enhance your home's comfort and aesthetic appeal, but they also offer significant financial and environmental benefits. Let’s explore why replacing your old windows is one of the best investments you can make for your home. 1. Lower Energy Bills On
Lion Windows & Doors
Feb 26, 20253 min read
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