Window Leak Repair in Monterey Park, CA
If the sill is wet after rain, or the paint under a window is peeling, the window itself is often fine. Most leaks we see come from cracked exterior caulk, weep holes packed with dirt, or a gap where the frame meets the stucco. Those are small repairs that keep the wall dry.
Text a photo, get a quote. Free estimates.
The fixes we cover
- Hose testing to find the entry point
- Cracked exterior caulk cut out and resealed
- Weep holes and slider tracks cleared
- Gaps between frame and stucco sealed
- Loose window trim reset and sealed
- Stained wall below the window checked for moisture
Where it usually goes wrong
- Water on the sill after every storm.
- Peeling paint or a brown stain under one corner.
- A slider track that fills with water.
Something else going on? Send the photo by text and ask.
Aluminum sliders in mid-century houses
Monterey Park’s housing boom ran from the 1940s into the 1960s; census estimates place 12,586 of the city’s 22,134 homes in those decades. Many have since had aluminum sliding windows fitted into the old openings, and every one of those frames relies on a caulk bead and a pair of weep holes to shed rain.
Once the caulk dries out in years of sun, the first winter storm finds the gap. Stains on the drywall below the corner of a window are the usual sign.
Where these facts come from: U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25034 (via Census Reporter); U.S. Environmental Protection Agency, A Brief Guide to Mold, Moisture and Your Home.
How we track it down
We start outside with a garden hose, wetting one section at a time from the bottom up while someone watches inside. That tells us whether the water comes through the sill, the frame joint or the glass seal, instead of caulking everything and hoping.
The EPA advises drying wet materials within 24 to 48 hours, so we also check the drywall and trim under the window and tell you if anything needs to come out.
Related fixes
Windows that stick, rattle or will not lock are covered on sliding window repair. Drafts without water are handled under window caulking and draft sealing, and stained drywall below a window is patched through drywall repair.
How a visit works
- Call or text a photo. Tell us what's wrong and your ZIP code.
- Quote before work. Text us a picture, and you’ll have our quote before work begins.
- The visit. We text before heading over.
- Parts and extras. Parts vary from job to job, so your quote spells them out. If we open things up and find more, anything extra waits until you say yes.
What to have ready
- Photos of the window outside and inside
- A close-up of the sill and the stained area
- Which side of the house it faces

How we price it

Show the job with something in the shot for scale, and our quote comes back before work begins.
Window leak repair questions
Something else? Call or text and ask.
Why is water coming in at the bottom of my window?
The weep holes that drain the frame are probably blocked, or the caulk under the sill has cracked.
Do I need new windows?
Usually not. Most leaks are in the seal around the frame, not the window itself.
Should I caulk the weep holes shut?
No. They are drains; sealing them makes the frame fill with water.
Why does only one window leak?
It usually faces the direction storms come from, or its caulk has had the most sun.
How much does window leak repair cost?
It depends on the window. Text photos for a free estimate.
Worth reading first
All guidesSliding glass doors that grind, stick or will not lock
Why the big sliding glass doors in Monterey Park's mid-century hillside homes get hard to open, and how we fix rollers, tracks, latches and screens.
New locks, knobs and deadbolts that work smoothly
When to replace locks, how to choose knobs, levers and deadbolts, and what we check so new hardware works smoothly in older Monterey Park doors.
Related services
All doors and windows jobs- Window caulking and draftsMonterey Park windows that leak air or rain resealed: old caulk cut out, frames sealed to stucco, slider seals renewed before winter.
- Sliding window repairSliding window repair in Monterey Park: windows that stick, won’t slide or won’t stay up fixed with new rollers, balances and clean tracks.
- Door leak repairDoor leak repair in Monterey Park: water under the threshold, through the frame or out of a slider track tracked down and sealed.
- DoorsDoors that rub, drop at the latch or no longer close on their own get hinges reset, strikes moved and closers fixed, and new slabs hung in the old frame.
- Contact us about this jobCall, text, or send a request with a photo.
Often booked with this job: drywall repair.
Looking for a handyman in Monterey Park for more than one job? Send the whole list in one text and we’ll price it together.
- Free estimates
- Local to the SGV
- Texts before arriving
- Small jobs welcome
- Mon–Sat 8:30–7
- We speak English, Mandarin and Cantonese · 中文
Get window leak repair fixed in 3 steps
- Text a photoShow me the window leak repair and tell me the address.
- Get a quoteA free estimate comes back before anything is booked.
- FixedI text before arriving, do the work, and clean up.
Most texts answered within the hour (not a guarantee).
My promise
I come back and make it right. If something I fixed isn’t right, text me and I’ll come back to sort it out.
I ask before any extra work. No surprise bills: the price you approve is the price, unless you OK a change.
“Rick is a great handyman, very friendly, knowledgeable, and professional. Highly recommend Rick for around-the-home…”
Need window leak repair?
Send a photo by text, with something in the shot for scale, and we'll reply with a quote. Or call and describe it.
Monday through Saturday, 8:30 AM to 7 PM. Closed Sunday. Monterey Park and nearby San Gabriel Valley cities.