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Notice a Drip? Here's Who to Call for a Leaking Window
A leaking window might seem like a minor inconvenience, but over time it can lead to serious consequences like water damage, mold growth, and reduced energy efficiency. Whether it's a slow drip or a visible stream during storms, a leak is always a sign that something's wrong. But when it comes to figuring out who to call for a leaking window, the answer isn’t always obvious.
In this guide, we’ll walk you through how to spot the cause, determine the right professional to help, and what to do in the meantime to prevent further damage.
What Causes a Leaking Window?
Understanding the source of a window leak is the first step toward resolving it effectively. While the visible symptom is water slipping into your home, the underlying causes can vary significantly—from minor sealant wear to major structural problems. Pinpointing the problem helps ensure you hire the right professional for the job and avoid unnecessary repairs.
Common Reasons for Leaky Windows
Leaky windows can result from a variety of issues, some of which are obvious and others that may require a closer inspection. Below are some of the most common reasons windows begin to leak, helping you narrow down the source and decide the best next steps.
- Clogged weep holes, which prevent drainage
- Worn or cracked sealant around the window frame
- Faulty flashing or missing caulking
- Structural damage or deteriorating siding near the window
- Improper installation leading to gaps or misalignment
If you notice water pooling on the window sill, bubbling paint, or discoloration around the frame, chances are high that one of these culprits is to blame.
What to Do When You Have a Leaking Window
If you’ve discovered a leaking window during inclement weather, time is of the essence. While waiting for a professional to assess and repair the problem, taking quick action can help you avoid water damage and protect your belongings. Here are a few immediate steps you can take to manage the situation effectively.
- Contain the water: Use towels, buckets, or containers to catch dripping water and protect floors.
- Remove nearby valuables: Move furniture, electronics, and rugs out of the affected area.
- Keep the affected area dry: Use fans or dehumidifiers to reduce moisture and prevent mold.
- Document the damage: Take photos in case you need to file an insurance claim.
- Don’t attempt major repairs yourself: Temporary fixes like tape or sealant may help short term, but a professional solution is still necessary.
Who to Call for a Leaking Window
Once you've identified the leak and taken the proper steps to avoid further damage. Because several different professionals may be needed depending on the source, it’s important to understand what each one brings to the table. Calling the right expert when dealing with a leaking window saves time and ensures the issue is addressed correctly the first time.
When to call a window specialist
If your window leak appears to be caused by broken glass or major structural failure, a window specialist may be necessary to replace that window. However, in many cases, complete replacement isn’t needed—especially when the issue is limited to seals, caulking, or surrounding trim.
For situations that require new window installation or custom-sized panes, a specialist can:
- Replace shattered glass or cracked panes
- Install new, energy-efficient window units
- Handle custom window fabrication or sizing
When to call a roofer or exterior contractor
If the source of your window leak seems to be coming from above or behind the siding, a roofer or exterior contractor may be required to investigate further. These professionals address larger issues such as:
- Damaged or missing flashing above the window
- Roof runoff problems or clogged gutters
- Water intrusion behind siding or trim
When to call Mr. Handyman
For most window leak repair needs—especially those involving damaged caulking, worn seals, or moisture issues around the interior frame, Mr. Handyman® is your go to. Our experienced service professionals can:
- Recaulk and reseal window edges
- Repair or replace worn weatherstripping
- Repair or replace windows
- Patch and paint surrounding drywall and trim
- Diagnose the source of leaks and recommend next steps
Whether it’s a simple reseal or a more complex water issue, Mr. Handyman can help restore your window’s performance and appearance—all backed by the Neighborly Done Right Promise®.
Window Leak Repair FAQs
For over 25 years Mr. Handyman service professionals have been helping homeowners and businesses repair, maintain, and enhance their space. We are a one-stop solution for everything on your to-do list. This includes answering your questions about home repairs, maintenance, and improvements. Here are answers to some of your most frequently asked questions about window leak repair.
What is the most common reason for a leaking window?
The most common reason for a leaking window is deteriorated sealant or caulking around the frame. Over time, weather and age can cause the seals to break down, allowing water to seep through during rain or snow.
How do I know if my window leak is serious?
Signs that your leaky window may be a serious issue include visible mold, warped drywall, stained window sills, and damage that worsens with each rainstorm. If you see any of these signs, it’s time to call a professional.
Should I repair or replace a leaky window?
It depends on the extent and cause of the leak. Minor issues like worn caulking or small cracks can often be repaired. However, if the window frame is damaged or the unit was improperly installed, a full replacement may be more cost-effective in the long run.
Fix Leaking Window Issues with Mr. Handyman
Leaky windows can lead to major headaches if left unaddressed. Whether you need a quick reseal or a larger fix, Mr. Handyman is here to help. Our skilled service professionals can handle leaky window repair and related issues, like weatherproofing and window casing repair, with care and efficiency.
Don’t wait for the next rainstorm to turn a small drip into a bigger disaster. Contact your local Mr. Handyman today to schedule service and protect your home from water damage.
This article is intended for general guidance only and is not applicable to every situation. You are responsible for determining the proper course of action for your property and situation.
Mr. Handyman is not responsible for any damages that occur as a result of advice and/or guidance derived from its blog content.
Some Mr. Handyman services vary by location. Contact your local Mr. Handyman franchise for more information.
