Foggy Window Repair in Hillsboro, OR

You see it every morning when the light hits right: a milky haze between your window panes that won’t come off no matter what you spray on it. That’s not dirt on the glass. It’s moisture trapped inside a failed seal — and it’s one of the most common window problems in the Hillsboro and Beaverton area.

Martin Glass fixes foggy windows across the Portland west side and the Oregon Coast. The repair is straightforward: we replace the sealed glass unit inside your existing frame. No ripping out the window. No reframing. Just the glass — which is where the problem actually lives.

What Causes Foggy Windows

Every modern double-pane window contains an insulated glass unit (IGU) — two panes of glass separated by a spacer and sealed around the edges. The sealed cavity is filled with air or argon gas for insulation. When that seal fails, insulating gas leaks out, humid air moves in, and moisture condenses on the inner glass surfaces you can’t reach. That’s the fog.

Why Seals Fail Faster in Oregon

• Rain and moisture — Western Oregon gets 35 to 45 inches of rain annually. Constant moisture exposure works against seals from the outside.
• Temperature cycling — Portland-area winters hover near freezing while summers hit the 90s. Thousands of expansion-contraction cycles over 15 to 20 years wear even well-made seals out.
• UV exposure — South- and west-facing windows absorb more UV radiation, degrading sealant compounds faster. Those are usually the first to fog.
• Salt air on the coast — Properties in Lincoln City, Newport, Tillamook, Seaside, and Astoria see accelerated seal deterioration. Coastal windows often fail years earlier than identical inland windows.

Hillsboro and Beaverton Housing Stock

Many homes in Hillsboro, Beaverton, and Aloha were built between the 1970s and 1990s — when dual-pane windows became standard. Those original IGUs are now 30 to 50 years old, well past their 15- to 25-year lifespan. Forest Grove, Cornelius, North Plains, and Banks saw growth during the 2000s and are approaching the same failure timeline.

How to Identify a Failed Window Seal

• Fog or haze between the panes — Can’t wipe it off from either side? The condensation is inside the sealed unit.
• Condensation that comes and goes — Fog on cool mornings that clears by afternoon means the seal is broken.
• White or chalky streaks — Mineral residue from moisture repeatedly condensing and evaporating inside the unit.
• The window feels colder than others — A failed IGU loses its insulating gas. You may feel a draft even with the window closed.

If you’re seeing these signs, the IGU has failed. There’s no DIY fix — the moisture is inside a sealed space that requires replacing the glass unit.

The Fix: IGU Replacement, Not Full Window Replacement

A foggy window almost never means you need a new window. You need a new insulated glass unit — the sealed glass sandwich inside your existing frame.

• We inspect the frame — no rot, no warping, no sill or jamb damage.
• We measure the existing IGU: width, height, thickness, glass type, spacer configuration.
• We fabricate or source a replacement IGU to match (or upgrade to Low-E with argon fill).
• We remove the old unit and install the new one. Most windows take 30 to 60 minutes per unit.

The result: a window that looks, insulates, and performs like new — at a fraction of full replacement cost.

If the wood frame has rot or it’s a single-pane window with no IGU, full window replacement makes more sense. We’ll tell you honestly which situation you’re in. See our window repair page for other window issues.

Energy Savings from Fixing Foggy Windows

A foggy window isn’t just an eyesore — it’s costing you money. A failed IGU can waste $20 to $55 per window annually in energy costs. For a home with five or six failed units — not uncommon in a 1980s-era Beaverton or Aloha house — that’s $100 to $300+ per year wasted. Replacing the IGU restores the thermal barrier immediately, and upgrading to Low-E with argon fill can improve performance beyond the original specs.

What Foggy Window Repair Typically Costs

• Standard double-pane IGU (clear glass) — typically starting from $150 per unit
• Double-pane with Low-E coating and argon fill — typically ranging from $200 to $350 per unit
• Tempered glass IGU (bathrooms, doors, near-floor locations) — typically ranging from $250 to $400+ per unit
• Large picture windows and patio door panels — priced by size; larger units cost more

Compare that to full window replacement at $300 to $1,000+ per window installed — two to four times the cost when the frame is perfectly fine. Replacing multiple windows in one visit lowers the per-unit cost since trip charges and setup are shared.

Service Area

We repair foggy windows across Hillsboro, Beaverton, Aloha, Cornelius, Forest Grove, North Plains, Banks and the Oregon Coast: Lincoln City, Newport, Tillamook, Seaside, Astoria. Coastal properties see faster seal failure from salt air and humidity — if you own a coast home or rental with foggy windows, don’t wait.

We also provide shower door installation and emergency glass repair across the same area.

Get Your Foggy Windows Fixed

Foggy windows are a solved problem. The repair is fast, affordable compared to full window replacement, and the improvement in appearance and energy performance is immediate.

Call Martin Glass: (971) 257-4946

We’ll assess your windows, tell you exactly what needs replacing, and give you a clear price before any work begins. No pressure, no upselling to full window replacements you don’t need.