How to Fix Leaking Windows on Nashville High-Rises

Squeegee Squad Nashville is locally owned and does window leak repair at heights on commercial buildings. We can water-test the outside of a window from the ropes to find where it’s leaking, then repair it. On most commercial buildings, the repair means replacing the caulking, sealant or window gaskets that let the water in, and our rope access crews do that work at height on buildings of 30+ stories, often without a lift or scaffolding. If you manage a tower downtown and a tenant just emailed you a photo of a wet windowsill, here’s what’s usually going on, how the fix works and what to ask before you hire anyone.

What usually causes leaking windows on a high-rise?

Many commercial window leaks start at a joint, not in the glass. The seals where the glass meets the frame, and where the frame meets the wall, are made of caulking, sealant and rubber gaskets, and those materials wear out. Common culprits:

• Sealant that has cracked, shrunk or pulled away from the frame or wall
• Window gaskets that have dried out, shrunk or slipped out of place
• Old patch jobs, where new caulk was run over failed caulk instead of replacing it
• Wind-driven rain that pushes water into gaps that stay dry on a calm day

Nashville doesn’t make it easy on sealant. Summer heat, hard spring storms and the occasional freeze-thaw week keep those joints expanding and contracting all year, and the upper floors of a tower take the most wind.

How can you tell a window is leaking before it becomes a bigger problem?

The first clues usually show up inside, long before anyone looks at the outside of the building. Watch for:

• Water stains, bubbling paint or soft drywall near window frames
• Damp sills or carpet along the glass after a storm
• Tenants mentioning drafts or a musty smell near a window
• From the outside: cracked, gapped or missing caulk, or gaskets hanging loose

If the same stack of windows keeps showing up in your work orders, that’s a pattern worth acting on. Water is patient, and a small leak rarely fixes itself.

What happens when a leaking window is repaired at height?

How a leak repair goes with our crews:

1. You tell us which windows, floors and sides of the building tenants are reporting, and send any photos you have.
2. We walk the building with you for a free on-site estimate, then send a written scope and schedule.
3. Our crew reaches the affected windows by rope access, often without a lift or scaffolding.
4. We water-test the outside of each window to find where it’s leaking.
5. We remove the failed caulking or sealant, prep the joint, install new sealant and replace worn window gaskets.
6. We send photos and videos of every job when the work’s done.

Water can travel inside a wall before it shows up, so if the testing points somewhere unexpected, we’ll tell you straight what we see. We keep your property manager, maintenance team and engineers updated while we’re working on site, and our own crews do the work.

Should a leaking window be resealed or replaced?

Often the fix is new seals, not a new window. What matters is doing it properly: running a fresh bead of caulk over cracked caulk may look tidy from the sidewalk, but it rarely lasts. A proper repair removes the old material so the new sealant bonds to clean surfaces. Our leak and sealant work includes:

• Window leak repair at heights
• Caulking and sealant replacement around window frames and joints
• Window gasket replacement
• High-rise window cleaning, a good time to check caulking and sealants

For more on the warning signs of tired sealant, see our post on who replaces caulking, sealants and window gaskets on Nashville high-rises. The full service list is on our caulking, sealant and window leak repair page.

Can you keep windows from leaking in the first place?

No building stays leak-proof forever. Catching tired sealant early beats chasing water stains later. Caulking and sealants can be checked while windows are being cleaned, so putting window cleaning and sealant work on recurring maintenance schedules is a simple way to keep an eye on them. If you’re setting next year’s numbers now, our guide to budgeting for exterior building maintenance in 2027 covers how to plan for it.

What should you ask a contractor before they repair leaks at height?

Ask any contractor these questions before work starts:

• Will you send a certificate of insurance before work starts?
• Are you set up on our vendor platforms, like NetVendor, RealPage or OPS Merchant?
• How will you reach the windows, and how do you plan work at height?
• Do you repair what the water testing turns up, or just tell us about it?
• Will we get a written scope, a schedule and guarantee terms in writing?
• What will we see when the job’s done?

Our answers: Squeegee Squad Nashville has been locally owned and operated by Ross Gielow since 2023. We’re fully insured, and we send a certificate of insurance before work starts. We’re NetVendor credentialed, RealPage and OPS Merchant compliant, and our work comes with a written workmanship guarantee, with terms spelled out in each proposal. The same rope access crews handle high-rise window cleaning in Nashville on towers of 30+ stories.

Who repairs leaking windows on Nashville high-rises?

Squeegee Squad Nashville repairs leaking windows on commercial buildings across Nashville, Brentwood and Franklin, from towers downtown and in the Gulch to mid-rise offices and apartment communities throughout Davidson and Williamson counties. That includes replacing failed caulking and sealant at curtain wall joints, by rope access or lift.

Frequently asked questions

Do you have to replace the whole window to stop a leak?

Often, no. When water is getting in through failed caulking, sealant or gaskets, replacing those seals is the repair.

Can you repair a leak on an upper floor without a lift?

Often, yes. Our rope access crews work at height on buildings of 30+ stories, often without a lift or scaffolding.

What affects the cost of window leak repair?

Height and access, how many windows are involved, how much sealant has failed and how the work is phased around tenants. Every building is different, so we price it after a free on-site estimate.

Can the work happen outside business hours?

Yes. We can schedule work outside business hours, including evenings and weekends.

Is the repair guaranteed?

Yes. Our work comes with a written workmanship guarantee, with terms spelled out in each proposal.

Get a free on-site estimate

If a wet windowsill has become a regular item at your property meetings, we’ll walk the building with you and send a written scope and schedule. Call Squeegee Squad Nashville at 615-330-6288 for a free on-site estimate.