Simonton's slim-frame collection. A narrow 2-7/8″ frame means up to 40% more daylight, wider views, and a clean contemporary look — backed by a lifetime limited warranty and expertly installed across the Puget Sound.
DaylightMax is engineered around one idea: more glass. Its slim 2-7/8″ frame trims away the bulky vinyl other windows hide behind, opening up the viewing area and pouring natural light into every room. Brighter spaces, bigger views, and a clean modern profile that disappears into the architecture.
DaylightMax comes in nine window styles, so you can carry the same narrow-frame look and natural light from the living room to the bath, the kitchen, and beyond.

Fixed top sash with a bottom sash that lifts open and tilts in for easy cleaning.

Sash glides horizontally left or right — with the Good Housekeeping Seal and AutoSense™ lock.

Hinged on the side, the sash cranks open outward for full top-to-bottom ventilation.

Hinged at the top, it cranks out and up — perfect for fresh air, even in light rain.

Fixed, non-opening glass that shows off the slim frame and the view in spaces large or small.

A combination of three or more windows that angle outward to add dimension and light.

Several windows in a gentle curve that softly projects outward for a graceful, panoramic feel.

Projects outward to create a sunny shelf for plants, herbs, or décor — ideal over a sink.
Also available in specialty shapes — circular, arched, and linear designs built to your home.
No other window we carry is protected like DaylightMax. It's backed by Simonton's Lifetime Limited Warranty: vinyl, hardware, and glass are covered for as long as you own your home — and that coverage transfers to the next homeowner for a true "double lifetime" of peace of mind, including accidental glass breakage. That protection is a big reason DaylightMax is one of our top recommended best buys.
See how DaylightMax's warranty compares to other Seattle windows →
Coverage details and limitations vary; ask us for the full Simonton warranty terms for your products.
A 3/4″ double-strength insulating glass unit with ProSolar® Low-E glass, argon gas, and an Intercept® spacer — configurable to meet ENERGY STAR® and Title 24.
Optional laminated glass resists forced entry, cuts unwanted noise, and blocks up to 99% of damaging UV rays that fade floors and furniture.
The self-latching AutoSense™ lock secures the window the moment it closes — exceeding the nation's strictest forced-entry code requirements.
From bright living rooms to bold black-frame statements, here's DaylightMax at work across the home.
Living room · Sliding windows
Bath · Picture window
Exterior · Bronze casements
Living room · Casement
Black interior · Sliding
Detail · Slim frame
Living room · Picture & awning
Wide view · Sliding
Don't let cost slow down your project. With $0 down, 0% interest, and 18 months to pay, new Simonton DaylightMax windows have never been easier.
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Stand in front of a slim-frame DaylightMax window, test the AutoSense™ lock, and talk styles with a real expert — no appointment pressure.
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Common questions about daylight, warranty, energy efficiency, and installation in the Seattle–Tacoma area.
DaylightMax is Simonton's slim-frame collection. Its narrow 2-7/8″ frame maximizes the glass area, delivering up to 40% more daylight and a wider viewing area than wide-frame windows — all while meeting ENERGY STAR® guidelines. It's the window to choose when you want more light, bigger views, and a clean, contemporary look.
Thanks to the slim 2-7/8″ frame and larger glass area, DaylightMax windows provide up to 40% more daylight than comparable wide-frame windows. In a 31″ × 21″ picture window, DaylightMax has about 40% more glass than a typical competitor's window — so rooms feel brighter and views feel bigger.
DaylightMax carries the best warranty of any window Emerald City Energy installs. It's backed by Simonton's Lifetime Limited Warranty covering vinyl, hardware, and glass — including accidental glass breakage — for as long as you own your home. Coverage transfers to the next homeowner, giving a "double lifetime" of protection, and includes labor on covered product issues. Emerald City Energy adds its own workmanship guarantee on every installation. Ask us for the full warranty terms for your specific products.
Yes. DaylightMax windows use an energy-efficient 3/4″ double-strength insulating glass unit with ProSolar® Low-E glass, argon gas, and an Intercept® spacer system. Region-specific glass packages can be configured to meet ENERGY STAR® guidelines in any climate and California Title 24 standards.
DaylightMax is offered in single hung, sliding, casement, awning, picture, bay, bow, garden, and specialty-shape styles — so you can carry the same slim-frame look and natural light throughout your whole home.
Yes. DaylightMax is available in white and tan vinyl, premium black and bronze laminate for both interior and exterior, and a range of custom exterior finishes. The advanced multi-layer laminate resists scratches, UV damage, and fading for a bold, lasting design statement.
Yes. The Simonton DaylightMax sliding window has earned the Good Housekeeping Seal in recognition of its quality, energy efficiency, and safety and security features — including the self-latching AutoSense™ lock that exceeds the nation's strictest forced-entry code requirements.
Yes. We're a local, licensed and bonded installer (WA Lic. EMERAI*034KG) serving Seattle, Tacoma, Bellevue, Everett, and the greater Puget Sound from three showrooms in Tukwila, Bothell, and Seattle, with financing available on qualifying projects.
Still have questions? Request a free quote or call (425) 228-1792.
Tell us about your project and a local expert will reach out — usually within 24 hours — with honest guidance and clear pricing on Simonton DaylightMax windows.