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What Happens on Window Installation Day in Austin

The truck pulls up a little after seven, while the street is still in shade and the cicadas have not started yet. By the time an Austin afternoon reaches its peak, most of the old sashes in the house are gone, the new units are set and foamed, and the crew is working on trim. That is the shape of a typical window replacement day in Austin: an early start, a steady rhythm of one opening at a time, and a long tail of finishing work that decides how good the job looks a year later.

Knowing the order of events ahead of time makes the day far less stressful. It tells you what to move, when the house will be open to the weather, where the dog should spend the afternoon, and what to look at before the installers drive away.

The Night Before: Clearing a Path

Installers need roughly a few feet of clear floor in front of every window being replaced, plus a straight route from the front door to each room. In a lot of Austin homes that means sliding the couch toward the middle of the living room, pulling the bed away from the bedroom wall and taking everything off the window sills. Blinds, curtain rods and shutters usually come down first. Some crews remove them as part of the job, but plenty expect the homeowner to do it, so ask which arrangement applies to yours.

Outside, trim back any shrubs pressed against the walls and move patio furniture, grills and potted plants away from the house. Ladders and staging need flat footing, and on lots that slope down toward a creek, as many do along the Balcones Escarpment on the west side of town, installers may need extra room to set a ladder safely.

Arrival and the Walkthrough

A careful crew starts with a walk through the house with you. The lead installer confirms which unit goes in which opening, checks that the windows on the truck match the order (size, glass package, grid pattern, color), and points out anything unusual about the openings. This is the moment to mention a sash that has been painted shut for decades, a window over a bathtub, or an alarm sensor on a frame. It is also the moment to agree on where cut-off scrap and old units will be staged in the yard.

Protecting Floors, Furniture and the Air Inside

Next comes protection. Drop cloths or adhesive floor film go down along every path the crew will walk, and canvas or plastic sheeting covers furniture that could not be moved far. In rooms with hardwood floors, a good crew lays a solid runner rather than plain plastic, because grit under thin sheeting acts like sandpaper under boots.

Dust is the main nuisance. Cutting caulk, scraping old glazing putty and trimming foam all make fine debris. Some installers tape a plastic curtain around each opening from the inside while they work. If you have family members with allergies or asthma, ask about this in advance and plan to keep bedroom doors closed. In houses built before 1978, any disturbance of old paint calls for lead safe work practices, which is a bigger topic with its own set of steps.

Kids, Pets and Open Walls

A replacement day leaves gaping openings in exterior walls for stretches of time. A cat that slips out through an empty frame on the second floor, or a dog that bolts through an open door while installers carry units in and out, is one of the most common problems on these jobs. The simplest fix is to board pets with a friend or a kennel for the day, or keep them shut in a room that has no windows on the work list. Put a sign on that door so nobody opens it by accident.

Removal: One Opening at a Time

Most crews work room by room so the house is never wide open all at once. For each window, the installer usually takes off the interior stop or casing, lifts or cuts out the old sashes, and then deals with the frame. With an insert job the old frame stays and only its parts come out. With a full frame job the whole unit is pried out down to the rough opening, which exposes the framing, the sheathing and any hidden rot.

Older wood windows in neighborhoods like Hyde Park often hold sash weights in hollow pockets beside the frame. Those weights get pulled and the pockets are typically filled with insulation before the new unit goes in. Aluminum windows from the 1970s and 1980s, which are common across many Travis County subdivisions, often have nailing fins buried under stucco or siding, so removing them takes careful cutting.

When the frame comes out, the installer inspects the window sill area and the framing below. Soft wood, staining or a sill that sags is the sign of an old leak. Small repairs may happen on the spot. Larger rot can stretch the day or require a return visit, so it helps to agree beforehand on how surprise repairs will be approved.

Setting the New Window

The new unit is dry fitted first to confirm it fits the opening with an even gap on every side. Then the opening is prepared: flashing tape or a pan at the bottom on full frame jobs, a bead of sealant where the design calls for it, and shims at the points the manufacturer specifies. The window is set, checked for level, plumb and square, and fastened. A sash that opens and closes smoothly with even gaps at the corners is the sign that the unit is not twisted.

The gap between the frame and the wall is filled with low expansion foam made for windows. Ordinary expanding foam can push frames inward and make sashes stick, which is why installers are particular about the can they use. After that, the exterior joint is sealed and trim or brick molding is attached, and inside the stops or casing are reinstalled.

Keeping the House Cool When Walls Are Open

From June through September, an Austin installation day is also a fight with heat. Every empty opening lets air conditioning pour out and humid outdoor air pour in. A few habits keep the house livable:

Start on the sunny side early. Many crews tackle west-facing windows in the morning, before the afternoon sun bakes that wall.
Close interior doors. Shutting the door to the room being worked on keeps the rest of the house closer to its normal temperature.
Raise the thermostat a few degrees. Running the system flat out against open walls mostly wastes energy and can make the air handler struggle to keep up with moisture.
Cover an opening if the crew has to pause. A sheet of plastic or plywood over an empty frame during lunch or a delivery wait keeps heat and insects out.

With the humid subtropical climate, moisture matters as much as temperature. Expect the indoor air to feel a little damp by late afternoon. It clears within a day once the house is closed up and the air conditioning catches up.

Cleanup and the Final Walkthrough

Once the last unit is in, cleanup starts. Old frames, sashes and broken glass go on the truck or into a dumpster. Floor protection comes up, the crew vacuums each work area, and the stickers and protective film on the new glass are often removed, though some installers leave the film for the homeowner to peel after painting.

The final walkthrough is your chance to check the work while the crew is still there. Go window by window and look for these details:

Each sash opens, closes and locks without forcing.
Tilt latches work, if the windows tilt in for cleaning.
Interior trim is tight to the wall with no gaps at the mitered corners.
Exterior sealant lines are continuous, with no skipped spots at the corners.
Screens are installed in the right windows.
The glass is free of chips and scratches.
No foam is squeezed out onto finished surfaces.

Write down anything left unfinished, such as caulk that needs to cure before paint or a piece of trim on backorder, and agree on when someone will come back.

What Usually Comes After

A typical house with ten to fifteen windows often takes one long day, while larger homes or jobs with a lot of full frame work can spread across two or three. Asking the installer for a realistic schedule, and then setting up the house the night before, turns what could be a chaotic day into a steady one. When the crew pulls away in the evening and the rooms are cool and quiet again, the difference in the house is usually obvious right away.