The Best Window Treatments for West-Facing Windows in Texas
By Patricio Marquez · October 6, 2026
If one room in your house is always hotter than the rest, it probably faces west. From about 3 p.m. until sunset, low-angle Texas sun hits west glass almost straight on, heating the room, glaring off screens, and fading floors and furniture.
Here's what works, from most effective at stopping heat to most flexible.
1. Stop the sun outside: exterior shades and awnings
The most effective way to keep heat out is to shade the glass from the outside, before the sun's energy passes through. Exterior shades drop over the window and keep your view; awnings shade from above. On the hottest walls, these outperform any interior treatment.
2. Solar shades inside
3% solar shades are our standard recommendation for west windows. They cut glare and a good share of heat while keeping the view. Motorizing them lets the shades lower on a schedule, before the room heats up, even when nobody is home.
3. Cellular shades for insulation
Cellular shades trap air in honeycomb pockets, adding insulation at the window. Double cell versions add more. They're a great fit for west-facing bedrooms.
4. Blackout layers for bedrooms
West-facing bedrooms can be tough on kids and anyone who naps. Blackout roller shades or blackout-lined draperies block the light and much of the heat.
5. Layer for the best of both
A solar shade plus draperies, or a dual day and night shade, gives you heat control by day and privacy at night.
What to skip
- Thin builder-grade mini blinds: they get hot and radiate heat into the room.
- Sheers alone: soft but little heat control.
- Light-colored open-weave fabrics on full-sun glass: more glare than you expect.
Frequently asked questions
What's the best window treatment for heat in Texas?
Exterior shades or awnings stop the most heat. Inside, 3% solar shades and double cell cellular shades are the strongest options.
Do blackout shades block heat?
Yes, they block direct sun well, which keeps rooms noticeably cooler.
Should west-facing shades be motorized?
It helps a lot. Scheduled shades close before the room heats up, even when you're away.