Will Starlink work through a window, indoors or in the attic?

Why the dish can’t work from inside

Starlink’s home dishes look at a wide cone of sky: a 110° field of view, pointed up and tilted toward the part of the sky the app picks. Satellites move through that whole cone. Starlink’s Standard 4 X setup guide spells out what happens when something solid is in it: anything solid in the dish’s view (a branch, a pole or a roof) will interrupt service.

Starlink’s Terms also make the customer responsible for installing the dish where it has a clear field of view of the sky. If it can’t see the sky, that’s on the install, not on Starlink.

Through a window

Two things work against a dish behind a window.

• The shape of the opening. A window is a hole in a wall. From a dish set behind it, the glass shows a slice of sky low on one side; the wall, the ceiling and the roof above block everything else, including the sky overhead where the dish does most of its work. Starlink’s own rule: “Do not place the dish beside a wall or other structure that blocks the sky.”
• The glass itself. Starlink doesn’t publish any figure for signal through glass. Many newer energy-efficient (low-E) windows carry a thin metallic coating, and metal screens are metal mesh; both can block radio signals more than plain glass (general background, not a Starlink figure).

Could it connect for a few minutes in a big picture window? Perhaps, and that’s where the videos come from. But a few minutes online isn’t a home connection, and Starlink publishes nothing that supports using a home dish behind glass.

In the attic or under a skylight

An attic puts the whole roof between the dish and the sky. Starlink’s own short list of things that interrupt service names a roof: a single branch, a pole or a roof can be enough to interrupt service. Many attics add a foil radiant barrier under the roof deck, and some houses have a metal roof on top. Either one makes it worse.

A skylight sounds like a loophole, but our reading is that it isn’t: it’s a small window at the end of a shaft. The dish would see a narrow patch overhead through glass, with nothing toward the rest of its cone. Put the dish on the roof above the skylight instead; the roof is where it would have the most sky anyway. Roof and wall mounts.

Under a porch, carport or patio cover

This one catches people who think “outside” is enough. Starlink’s placement rules are direct: “Do not install under a covered outdoor area.” A porch roof, a carport, an awning or a screened-in porch covers exactly the part of the sky the dish uses most. A pergola with open slats still blocks a lot of it; treat it like a cover.

The usual fix is to step the dish out from under the cover: on a short pole beside the porch, on the main roof above it, or out in the yard.

Under (or through) a metal roof

Metal blocks the signal, so a dish under a metal roof, a pole barn roof or a metal carport won’t work. Putting the dish on top of a metal roof is a different matter and works well with the right mount. Starlink says “Third-party metal mounts that wrap around the terminal’s base, or placing the terminal directly on metal, may interfere with GPS and are not supported.” Starlink on a metal roof.

What to do instead: dish outside, cable inside

Almost every home has an outside spot that works better than any window. These steps get you there.

1. 01

   Step 1: Find the nearest outside spot with open sky

   Look above the roofline first: a gable wall high under the eave, the roof itself, a short pole off the side of the house, or an open patch of yard. Which mount fits which spot.

2. 02

   Step 2: Scan it with the Starlink app

   Hold your phone where the dish would sit, at that height, and run the app’s sky scan. How to scan.

3. 03

   Step 3: Plan how the cable gets inside

   The dish goes outside; only the cable has to come in. Starlink says “the cable routing kit and masonry routing kit provide the hardware necessary to pass the Starlink cable through most walls” Getting the cable into the house.

4. 04

   Step 4: Renting or in an apartment? Check the no-drill options

   Weighted bases, ridge mounts and balcony setups avoid holes. No-drill installs and apartment and condo rules.

5. 05

   Step 5: Run the 2-minute fit check

   It puts your spot, trees, roof and home rules together and tells you what to check next. Start the fit check.

If you were hoping for a window because you rent, the rules may be on your side for some outdoor spaces. See apartments and condos before you give up. And if you’re not sure which way the dish needs to look, read which way Starlink faces.