Window Double Pane Repair [work] -

| Repair Type | Material Cost | Labor Cost | Total | Lifespan | |-------------|---------------|------------|-------|-----------| | DIY defogging | $15–30 | $0 | $15–30 | 6–24 months | | Professional defogging | $50–100 | $100–150 | $150–250 | 1–3 years | | IGU replacement (DIY) | $100–300 (per unit) | $0 | $100–300 | 10–20 years | | IGU replacement (pro) | $150–400 | $150–300 | $300–700 | 10–20 years | | Full window replacement | $300–1,200+ | $200–500 | $500–1,700+ | 20–30+ years |

This report outlines the causes of double pane window failure, specifically focusing on "foggy" windows caused by broken seals. It evaluates the two primary repair methodologies: full window replacement versus Insulated Glass Unit (IGU) replacement. The findings indicate that while replacement is the only way to restore full thermal efficiency, IGU replacement is a cost-effective alternative for restoring visibility and structural integrity in residential settings.

True “repair” of a failed seal is rarely permanent. Defogging services (drilling holes, injecting cleaner, adding one-way valves) typically last 1–3 years. Replacement of the IGU is the only permanent solution.

When the seal breaks, moist air enters, the desiccant becomes saturated, and permanent fogging or "blown" glass occurs. 1. Identifying the Problem

Costs vary by size, glass type (Low-E, tempered, triple-pane), and region.

October 26, 2023 Subject: Analysis of Double Pane Window Failure and Repair Methodologies Prepared For: Property Management / Homeowners