Foggy / Failed IGU Replacement (Condensation Between Panes)
Fast, professional replacement of fogged or failed double‑pane (insulated) glass for Seattle‑area homes—new, energy‑efficient IGUs sealed to code and installed cleanly, often in a single visit.

Foggy/Failed IGU Replacement FOR SEATTLE HOMES
When insulated glass units (IGUs) lose their seal, moisture sneaks between the panes and leaves a permanent haze. That fog traps condensation, reduces efficiency, and can lead to mold or water damage around the sash. Replacing the IGU returns clear views and proper insulation without the cost of a full window replacement.

Why Seals Fail?
In the Pacific Northwest, constant moisture and temperature swings slowly wear out insulated glass seals. Sun exposure and normal frame movement also stress the glass edges, and once a seal breaks, airborne moisture slips between the panes, creating fog and condensation that won’t wipe away.

Restore Clarity and Efficiency
We custom‑measure and replace the failed IGU with a new, factory‑sealed unit—matched for size, Low‑E, and tint. The result is a clean, dry airspace that improves comfort and energy performance while keeping your existing frames.

Clean, Fast Installation
Most IGU swaps are completed in a single visit. We protect your home, remove the old glass, set the new unit with professional sealants and setting blocks, and haul away debris—leaving you with crystal‑clear windows and no mess.
Why Professional Foggy/Failed IGU Replacement Matters
When an insulated glass unit (IGU) loses its seal, outside air and moisture enter the space between panes. The result is permanent fogging, mineral stains, and reduced insulation. In Seattle’s wet climate, that trapped moisture often spreads to the sash and drywall, inviting mold and costly repairs.
Where failed seals cause trouble:
- Condensation and haze trapped between panes
- Drafts and temperature swings near the window
- Soft, water‑stained trim and peeling paint
- Higher energy bills from lost insulation
These issues rarely fix themselves, and DIY “defogging” is only temporary. Replacing the failed IGU with a new, factory‑sealed unit restores clear views and energy efficiency—without replacing the entire window. Our team measures precisely, installs cleanly, and leaves your home protected for the long term.


Why Homeowners Trust Glassma for Foggy/Failed IGU Replacement
We’ve restored clear views for thousands of Seattle‑area homes, and we know what it takes to fix failed insulated glass units the right way. Our certified glaziers use precise measurements, quality IGUs, and clean installation methods to ensure long‑lasting results every time.
Full‑Service IGU Replacement
We do more than “defog” windows. We remove the failed unit, custom‑fit a new sealed IGU, and verify insulation and operation—no shortcuts or temporary fixes.
No Mess, Clean Finish
We protect floors and trim, work efficiently, and haul away debris. Your windows are spotless when we leave—no sealant smears or leftover materials.
Clear Findings, No Surprises
You’ll know exactly what failed, why it happened, and the best solution. We provide clear pricing and timelines with no guesswork.
Licensed, Insured & Local
Our Seattle team is fully licensed and insured, trained to current codes and safety standards, and trusted by homeowners across the Puget Sound.
Our Foggy/Failed IGU Replacement Process
As one of Seattle’s most trusted residential glass teams, we follow a precise process to replace failed insulated glass units (IGUs) so your windows look clear and perform like new. Here’s how we do it.
01
Inspection & Measurement
We inspect the sash and frame, confirm the IGU has failed, and take exact measurements so the new unit fits perfectly and seals tightly.
02
Custom IGU Fabrication
We order or fabricate a matching insulated glass unit—size, thickness, Low‑E, and tint—built to code and designed for long‑term performance.
03
Removal & Installation
We carefully remove the failed glass, prep the opening, and set the new IGU with professional sealants and setting blocks to ensure a durable, weather‑tight seal.
04
Final Check & Cleanup
We verify smooth operation and clear views, clean the glass inside and out, and haul away debris—leaving your home spotless and your window restored.

Real Results, Happy Homeowners
We’ve replaced foggy and failed double‑pane (IGU) glass for homes across Seattle and the Puget Sound—restoring clear views and better insulation. See the before‑and‑after difference professional IGU replacement can make in your windows.
Glassma Benefits
Your Trusted Residential Glass Team for the Greater Seattle Area
Clarity Care Plans
Effortless Window Maintenance, Year‑Round
Stay ahead of foggy or failed double‑pane units with scheduled inspections, priority IGU replacement, and member pricing. Keep your home efficient and your views crystal clear in every season.
Smart Financing Options
Affordable IGU Replacement Solutions
Spread the cost of larger glass projects—whole‑home insulated unit upgrades or multiple window replacements—with flexible monthly payments and quick approvals, so you can enjoy clear, energy‑efficient windows now.
It’s time to say goodbye to cracked panes, foggy double‑pane glass, and hard‑to‑open doors. From emergency board‑ups and window glass replacement to storefront glazing and commercial door repair, Glassma is here to keep Seattle‑area homes and businesses safe, secure, and crystal clear.
Let’s Restore Your View—Fast.

When It’s Time to Replace Foggy Double‑Pane Glass
Many homeowners don’t notice failing insulated glass units until the haze won’t wipe away or drafts become obvious. Here are common signs your IGU seal has failed and the glass should be replaced soon.
What We Check During Foggy/Failed IGU Replacement
At Glassma, replacing a failed insulated glass unit isn’t just swapping panes. We evaluate the entire window system to make sure your new IGU seals properly, performs efficiently, and lasts.
Frame & Sash Condition
We inspect for rot, warping, and movement around the sash and frame that could stress a new seal or allow water intrusion.
Correct Glass Spec & Safety
We confirm the right build—thickness, Low‑E, spacer type, and tempered/safety requirements—so your window meets code and energy goals.
Seal Surface & Prep
Old sealants and debris are removed, contact edges are cleaned, and setting blocks are placed to support a durable, even seal.
Operation & Clearances
We check hardware, balances, and reveal gaps to ensure the window opens, closes, and locks smoothly after the new IGU is installed.

Areas we serve
Glassma provides fast, professional glass repair, replacement, and 24/7 emergency service for homes and businesses. Available across Seattle & the Puget Sound region.
Other Residential Glass Services We Provide
More Ways to Keep Your Windows Clear, Safe, and Efficient

Window Glass Replacement
Clear, safe single‑ or double‑pane glass for your home windows.

Double‑Pane Glass Replacement
New insulated (IGU) units to fix foggy or failed double‑pane glass.

Patio Door Glass Replacement
Tempered glass for sliding and hinged patio doors that fits and seals right.

Foggy / Failed IGU Replacement
Replace moisture‑filled or cracked insulated glass units only—no new frame needed.

Custom Vanity Mirrors
Made‑to‑measure mirrors, professionally installed for a perfect fit.

Custom Gym Mirrors
Large, clear wall mirrors sized and mounted for home workout spaces.
Frequently Asked Questions
Not necessarily. With your approval and safe access, we can replace the glass while you’re away and send photos of the finished work.
Yes. We remove the failed IGU and install a new, factory‑sealed unit that matches your window—no full frame replacement needed in most homes.
We don’t “defog.” We replace the failed IGU with a new sealed unit to restore clarity and insulation for the long term.
Most residential jobs are measured, ordered, and installed in one quick visit once the new unit arrives—usually within days.
Yes. If a window can’t be glazed right away, we provide temporary board‑up to secure the opening until the new IGU is ready.
Not Sure What Your Windows Need?
We’ll Help You See Clearly Again.

