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Windows

Window Leak Repair in Rosemead, CA

In one line: We trace window leaks to caulk, seals or weep holes and fix them.

Most Rosemead ranch houses now have aluminum sliders, and those frames shed rain through two small weep holes and a bead of caulk. When either fails, water ends up on the sill or inside the wall below. We find which one and put it right.

Window sill after rain, second view
Photo: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons

Covered on a Rosemead visit

  • Garden-hose testing from outside
  • Dried-out exterior caulk removed and replaced
  • Weep holes and slider tracks cleared
  • Gaps between frame and stucco filled and sealed
  • Loose sill trim reset
  • Wet drywall below the window opened and checked

Outside what we take on

  • Cutting new openings for doors or windows.
  • Glass replacement; a glass shop handles panes and sealed units.
  • Garage door openers, springs and tracks.

Aluminum sliders on 1950s houses

With a median build year of 1959, many Rosemead homes began with steel or wood windows and later had aluminum sliders fitted into the old openings. The joint between new frame and old stucco is only as good as its caulk, and decades of sun crack it.

Stains spreading from a window corner mean water has reached the drywall. The EPA recommends drying wet materials within 24 to 48 hours, which is why we check the wall as well as the window.

Steps

Test

Hose on the window from the bottom up while you watch inside.

Window leak repair steps1Find where watergets in2Clear weep holes3Reseal the frame4Hose test it
How a leaking window gets sealed.

Clear

Weep holes and tracks cleaned out.

Seal

Old caulk cut out and the frame resealed.

Check

Wall below the window probed for moisture.

Where Rosemead windows leak

Window leaks in Rosemead usually show up during the first heavy rain after a long dry summer. Sun cracks the caulk around stucco openings, and the weep holes at the bottom of aluminum frames fill with dirt. Water then runs into the wall instead of draining out.

We start by finding the path. Water stains under a window do not always mean the window is the problem; a cracked stucco seam above it, a missing drip edge or a clogged gutter can send water to the same spot.

  • Weep holes cleared so the frame drains outside
  • Old cracked caulk cut out and replaced with exterior sealant made for stucco
  • Frame corners and glazing beads resealed
  • Interior stains noted and drywall checked for softness

After the leak is fixed

Once the water is stopped, we check the sill and the wall below for soft drywall or swollen trim. Small damaged areas can be patched and painted.

Drain, Caulk, DrywallDrainCaulkDrywall

If we find wet framing or mold behind the wall, we stop and show you before going further. The best time to have us look is during or right after the rain, while the drip is still visible.

Not ours

Replacing the window, changing the opening size or repairing framing behind it.

Door, Weatherstrip, WindowDoorWeatherstripWindow

What to text

Photos of the window outside and in, the sill, and any stain below it.

Raindrops on a window glass at dusk
Stock photo · Pexels

Window leak questions

Why is my window sill wet after rain?

The weep holes are blocked or the caulk under the frame has cracked.

Recaulking steps1Cut out the oldcaulk2Clean and let itdry3Run a steady bead4Tool it, thenwait to cure
How we redo tub and shower caulk.
Clear rain droplets on a window with a blurred green outdoor background
Stock photo · Pexels

Should I caulk over the weep holes?

No. They let water out of the frame; covering them makes the leak worse.

Window track with glass looking onto a courtyard
Photo: miamibrickell / Flickr, CC BY 2.0

Do I need a new window?

Rarely. The seal around the frame is the usual culprit.

Why does only the west window leak?

That side takes the most sun and the most wind-driven rain, so its caulk fails first.

What does a window leak repair cost?

We price it from your photos; the estimate is free.

Window tips

Jobs like this one are everyday work for our Rosemead handyman service, from the blocks off Garvey Avenue to the streets near Rosemead Park. A photo by text gets you a quote first.

Part of door and cabinet repair. You can also browse all our services or read about repairs in postwar Rosemead homes.

Cabinet, Photo by text, PartsCabinetPhoto by textParts
Sources for the figures on this page

Yelp reviews

Reviews from Yelp

Copied word for word from our Yelp listing, Szeto Plumbing and Handyman.

They were good communicators and let me know what time to expect them. They gave me a quote of a flat rate. They were friendly and efficient.. They did good work.

Cindy O.Hacienda Heights, CA · Yelp review · Jun 8, 2024

Read more reviews of Szeto Plumbing and Handyman on Yelp

  • No-charge estimates
  • Valley local
  • I text when I’m heading over
  • Little jobs are fine
  • Hours: Mon–Sat 8:30 AM–7 PM
  • English, Mandarin and Cantonese spoken · 中文

Window leak repair: from photo to finished

  1. Send a picturePhotograph the window leak repair and say which part of Rosemead or nearby you are in.
  2. Quote comes backThere is no charge for it, and nothing gets scheduled until you say so.
  3. Fixed and cleaned upYou get a heads-up text on the way, and the area is swept before I go.

Free estimate: send a photo or give us a call.

Texts get read and answered Monday through Saturday.

How I work

Questions afterward? Send a text with a photo and I’ll take a look.

Changes need your yes. The agreed price holds; extra work only happens once you approve it.

“They were good communicators and let me know what time to expect them. They gave me a quote of a flat rate. They were…”

Cindy O., Hacienda Heights, CA · Read reviews on Yelp

Window leak repair quote request

This opens a ready-to-send text on your phone; no data is saved here. Put the photo in the text. Texts get read and answered Monday through Saturday.