Renton Energy Efficient Windows

One of the most intelligent decisions Renton homeowners can make is choosing to install energy-efficient windows with Lake Washington Windows and Doors. Our team of expert sales and installation professionals is here to improve your home comfort, savings, and environmental impact at your earliest convenience. Visit our Renton showroom today to experience the firsthand benefits of energy-efficient replacement windows. We look forward to serving you!

Select the Perfect Energy Efficient Windows to Match Your Renton Home Design

Regardless of your home’s design or architectural style, whether modern, classic, or somewhere in between, we have an energy-efficient window tailored to suit your needs. Our vast inventory ensures every Renton homeowner finds their perfect match. The window styles we offer include

Experience the Advancements in Window Material Technologies Firsthand

The replacement window industry has experienced incredible advancements in energy efficiency technology over recent years. Renton homeowners must understand two essential energy-saving technologies: window frame materials and multi-layer glass selections. Our windows include these groundbreaking features to ensure top-notch energy efficiency for every customer.

Choose a Frame Material that Matches Your Energy Efficiency Needs

Your window frame material isn’t just about aesthetics. It plays a vital role in the energy performance of your home. We’re here to help you make a well-informed choice to experience optimal benefits and energy savings.

chair in room with black framed windows

Fiberglass Replacement Windows

Our Milgard Ultra Series fiberglass window frames are a premier choice for Renton residents looking for ultimate efficiency and quality. The unique composition of fiberglass ensures incredible insulation, making these Energy Star-approved windows the pinnacle of luxury and energy savings.

Vinyl Replacement Windows

Milgard Trinsic and Tuscany vinyl window frames offer the dual benefits of high energy efficiency and affordability. Milgard’s meticulous craftsmanship allows homeowners to save money on their initial purchase without compromising the performance needed to save on future utility bills. If you’re looking for the perfect balance between efficiency and budget-consciousness, these Energy Star-approved windows are the ideal solution.

chair in room with black framed windows

Aluminum Clad-Wood Replacement Windows

Andersen E-Series Aluminum Clad-Wood window frames merge the warmth and elegance of wood with the durability of aluminum to create a beautiful, lasting replacement window with highly respectable efficiency statistics. We promise you’ll love how these Energy Star-approved windows improve your home’s interior aesthetic and save money on utility bills.

Energy-Efficient Windows with Multi-Layer Glass Panes

Incorporating multi-layer glass panes is a game-changer for energy efficiency. Every additional layer significantly reduces heat transfer and air leakage, making your Renton home interior more comfortable throughout the year.

chair in room with black framed windows

Double-Pane Energy Efficient Windows

Double-pane windows are a popular choice for a reason. An added layer of insulation dramatically reduces heat loss and gain, ensuring your home remains temperate while saving on energy costs.

Triple-Pane Energy Efficient Windows

For those who want the best insulation, triple-pane windows are the way to go. Offering an extra layer of protection, they’re a formidable barrier against unwanted thermal transfer.

Now, With Additional Technologies to Raise Solar Heat Gain Coefficient (SHGC)

With Renton’s varying climate and solar radiation, optimizing SHGC is essential. Through advanced technologies, we ensure your replacement windows capture the right amount of solar heat, contributing to your home’s warmth during the winter without overheating during the summer.

Low Emissivity (Low-E) Glass Coating

Low-E glass coating is a revolutionary technology that reflects infrared light to protect your home’s interior. This thin layer of coating, placed on top of your window panes, significantly affects energy efficiency, keeping you cooler in summer and warmer in winter.


Gas-Filled Panes

Innovations like gas-filled panes use inert gases like argon or krypton to enhance the insulation properties of your replacement windows. These gas layers act as additional glass panes to reduce heat transfer and consistently regulate interior temperatures.

Insulating Window Spacers

Window spacers are subtle yet crucial in reducing air leakage and improving overall energy efficiency. By reducing heat transfer at the pane’s edge, they ensure the entire window works to keep your home comfortable.

Installing Energy Efficient Windows and Doors is Our Specialty

At Lake Washington Windows and Doors, our commitment goes beyond the quality of our products. We aim to provide an experience of unmatched expertise and customer service in the energy-efficient replacement window and door industry. Our team has helped countless Renton homeowners realize a comfortable, eco-friendly home with our energy-efficient replacement windows and doors. Join them by scheduling a complimentary in-home consultation today.

Renton Showroom

740 SW 34th St #201
Renton, WA 98057