Foggy Window & IGU Replacement Across DC, Virginia & Maryland

That Haze Between the Panes Isn't Dirt. It's a Failed Seal. We Fix It.

You’ve tried cleaning it from both sides. It doesn’t help because the fog is trapped between the glass layers where you can’t reach it.

That’s a failed seal in your insulated glass unit, and it means your window is no longer insulating, protecting, or performing the way it should.

Prestine Glass Solutions provides foggy window repair and insulated glass replacement for homeowners across Washington, DC, Northern Virginia, and Maryland.

We replace the failed unit, restore clarity, and bring your window back to full energy efficiency.

A failed seal is a glass-unit problem, not a frame problem. See broken window glass repair, patio door glass replacement and skylight repair for the same failure elsewhere in the house. Serving Silver Spring, Greenbelt and the DMV.

Broken rather than foggy? See double-pane glass replacement.

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5.0 Google ratingFrom DMV homeowners and businesses

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24/7 emergencyBoard-up and broken glass

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Glass onlyBuilding glass, never auto

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DC · VA · MDBased in DC, serving the DMV

What We Do

Insulated Glass Replacement

The fix for foggy windows is replacing the insulated glass unit (IGU) entirely. We remove the failed double-pane or triple-pane unit, install a new IGU with a fresh hermetic seal, and restore full insulation and clarity. This is the permanent solution, not a temporary defogging treatment that fails again in six months.

Double Pane Glass Replacement

Most foggy windows in the DC area are double-pane units with a failed perimeter seal. We replace the double-pane glass without tearing out the frame or sash when the frame is structurally sound. New glass, new seal, same window opening.

Seal Inspection & Frame Assessment

Before we replace anything, we inspect the frame, sash, and surrounding structure to make sure the new IGU has a solid foundation. If the frame is rotted, warped, or damaged, we address it so the new seal doesn’t fail prematurely.

Weatherproofing

While we’re replacing the glass, we check and upgrade the weatherstripping, gaskets, and exterior sealant around the window. One visit, full performance restoration.

How Foggy Window Repair Works

Step 1: Inspection We identify which windows have failed seals, check the frames, and determine whether the fix is an IGU replacement or a full window replacement.
Step 2: Measurement Precise measurements of the glass unit, spacer, and frame to ensure the replacement IGU fits exactly.
Step 3: Replacement The failed unit comes out, the new insulated glass unit goes in, and the window is resealed. Clean edges, tight fit, full insulation restored.
Step 4: Performance Check We verify the seal, check for drafts, and confirm the window operates smoothly before we leave.

Signs Your Windows Need Foggy Glass Repair

Foggy windows don’t get better on their own.

The seal has failed, and the insulation value is gone.

Why Homeowners Choose Us for Foggy Window Repair

Permanent Fix. Not a Patch. We replace the insulated glass unit entirely. No defogging gimmicks. No drilling holes in your window. A new IGU with a new seal that actually lasts.
Frame Stays. Glass Gets Replaced. In most cases, we replace the glass without replacing the entire window. Saves you money. Saves the frame. Same result.
Energy Savings You Can Feel A foggy window is a window that's no longer insulating. Replacing the failed IGU restores the thermal barrier and lowers your heating and cooling costs.
Licensed & Insured Fully licensed for residential glass work across Washington, DC, Virginia, and Maryland.

Foggy Window & IGU Replacement: What to Expect

Condensation or haze between the layers of a double-pane window usually means the seal has failed. Replacing the insulated glass unit can restore a clear view without replacing the whole frame, depending on the window system.

What the Service Includes

We check the glass, the sash and frame around it and any related parts, then measure the unit so the replacement is made to size. If the frame itself has failed, we will tell you before anything is ordered.

How We Approach Your Project

Share the service address, property type, rough dimensions and photos if you can take them safely. We review the problem, confirm whether an on-site visit is needed, talk through the right materials and arrange the replacement. Specialty glazing can need extra lead time.

Common Questions

Can damaged glass always be replaced right away? No. Standard materials may be available sooner, while specialty or custom glass usually needs measuring and fabrication first.

Do you give commercial estimates? Yes. Call 571-621-0898 with the location and scope to request one.

Coverage Across the DMV

Prestine serves Washington DC and major markets in Virginia and Maryland, with local pages for Arlington, Alexandria, Fairfax, Tysons, Bethesda, Silver Spring, Rockville, Hyattsville. For Richmond, Virginia Beach, Baltimore, Frederick and other distant markets, we confirm crew availability and project fit before scheduling.

Why Work With a Building-Glass Specialist

Architectural glass is a different trade from automotive glass. Choosing the correct panel, safety specification and installation method is what makes a secure, working opening. Prestine works on building glass only.

How it works

From broken to fixed in 4 steps

Call or send photos

Tell us what broke and where. Photos help us quote faster.

Make it safe

For emergencies we clear the hazard and board up or secure the opening.

Measure and order

We measure on site and order the right glass and hardware.

Install

We fit the permanent glass and leave the site clean.

Foggy Glass Repair FAQ

What causes foggy windows?

Foggy windows are caused by a failed hermetic seal in the insulated glass unit (IGU). When the seal breaks, moisture enters the space between the panes and becomes trapped. It can’t be cleaned from either side.

Can foggy windows be repaired without replacing the glass?

Temporary defogging treatments exist, but they don’t fix the failed seal and the fog typically returns. The permanent fix is insulated glass replacement, which restores both clarity and insulation value.

Do you replace the entire window or just the glass?

In most cases, we replace only the insulated glass unit. If the frame and sash are structurally sound, there’s no need to tear out the entire window. Double pane glass replacement in the existing frame saves time and money.

Will new glass improve my energy bills?

Yes. A foggy window has lost its insulation value entirely. Replacing the failed IGU restores the thermal barrier and reduces heat transfer, which lowers heating and cooling costs.

How long does foggy window repair take?

Most jobs are completed in a single visit. Measurement and IGU sourcing may add a few days on the front end for non-standard window sizes.

Are you licensed for this work?

Fully licensed and insured across Washington, DC, Virginia, and Maryland for all residential glass work.

How do I know if my window needs foggy glass repair or a full replacement?

If the frame and sash are in good condition, IGU replacement is the right call. If the frame is rotted, warped, or damaged beyond repair, a full window replacement may be more cost-effective. We assess both during the inspection.

Related Residential Glass Services

Broken Glass Repair

Cracked and shattered window panes. Same-day broken window repair across the DMV.

Patio Door Replacement

Sliding doors and French doors with foggy or failed glass. Full replacement available.

Glass Shower Doors

Shower door replacement and frameless installation for DC, Virginia, and Maryland homes.

What Our Clients Say

Our testimonials speak for themselves.

"Excellent service! They fixed my foggy patio doors in Silver Spring quickly and affordably. Looks brand new!"

John T.Silver Spring, MD

"I recently had my window glass replaced by Prestine Glass, and I'm very satisfied with the entire experience. Their pricing was fair and transparent, with no surprises."

T.Rockville, MD

"Quick and professional! Prestine Glass Solutions replaced my broken window in Georgetown, DC, in just a few hours. Highly recommend!"

Sarah M.Georgetown, DC

"Very satisfied! Prestine Glass replaced a cracked window in Northeast DC. Prompt and courteous service!"

Emily R.Northeast DC

Need glass repaired?

Call now for emergencies, or send a quick request and we will get back to you with next steps.

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