Who to Call for Window Leak Repair

This article was created using automation technology and thoroughly fact-checked and edited by HomeAdvisor Editor Ryan Noonan.

If you are unsure who to call for window leak repair, start with a window installation specialist for complex leaks and a handyperson for minor drips or condensation. General contractors with strong window repair experience can handle small issues. For new or recently repaired windows, contact the warranty provider first. Manufacturer-recommended specialists may hold brand certifications—use a window specialist hiring guide to vet pros.

Benefits of Hiring a Window Installation Specialist for Window Leak Repair

A window installation specialist finds the true source of moisture across seals, sash, frame, and nearby walls. They complete targeted repairs, ensure proper fit, and determine when replacement is more cost-effective. If your windows are under warranty, a manufacturer-designated specialist helps keep you compliant.

• Diagnose leaks at seals, sash, frame, and surrounding wall areas

• Identify flashing and frame issues that drive rain intrusion

• Reseal panes and replace interior or exterior caulking

• Repair small glass cracks when appropriate

• Replace window flashing or a damaged frame

• Confirm the window fits correctly in its casing

• Clean or replace tracks on sliding windows and doors

• Reinforce windows to prevent future leaks

• Advise when full replacement is the smarter investment

• Navigate manufacturer warranties for newer windows

Can I Hire a Handyperson for Window Leak Repair?

A handyperson fits small jobs, like minor leaks or condensation, and simple fixes such as re-caulking or replacing worn seals. This can be a cost-effective first step, and they can flag issues that require a specialist. The trade-off: they are not the right choice for rotting frames, misfitting windows from settling, or structural concerns. If complexity is suspected, hire a window specialist first. If water appears to come from the roof or walls, bring in a roof repair specialist after ruling out the window. If you need help with minor fixes, you might want to consider a handyman near you to ensure the job is done quickly and correctly.

How Do Window Installation Specialists Repair Leaky Windows?

Window specialists follow a clear process to stop leaks at the source and protect surrounding materials.

1. Inspect for water damage, rot, or mold around the window, adjacent wall, and ceiling.

2. Replace interior and exterior caulking or sealant.

3. Reseal the windowpane to halt moisture intrusion.

4. Repair a small glass crack when appropriate.

5. Replace window flashing or the frame for rain-related leaks.

6. Ensure the window fits correctly in its casing.

7. Clean or replace tracks on sliding units and doors.

8. Recommend full window replacement when it is more cost-effective.

How Much Does Window Leak Repair Cost?

Most professional window repairs average between $170 and $620. Labor runs about $30 to $50 per hour, depending on scope. A handyperson averages just over $400, with hourly rates from $50 to $150 for minor fixes like re-caulking; silicone caulk averages about $10 or less. When repair is not practical, replacing a window can cost $175 to $2,300 including labor. Warranty coverage may pay for repairs or replacement if defects or installation issues caused the leak.