Window FAQs
What causes windows to fog between the glass panes?
Fogging between panes is typically caused by seal failure.
When the seal breaks:
- Moisture enters between the glass panes
- Condensation forms and evaporates repeatedly
- Mineral residue leaves permanent marks on the glass
In many cases, sash replacement is the recommended solution.
Read More: How to Seal Windows to Reduce Drafts & Lower Energy Bills
Can just the glass be replaced instead of the entire window?
In some cases, glass-only replacement is possible. This depends on the window brand and model.
Some window systems allow glass replacement, while others require replacing the entire sash or window unit.
A glass repair company can help determine whether glass-only replacement is an option.
Read More: Window Replacement vs. Repair: Which Option is Right for You?
What types of windows are commonly installed?
| Window Type | Description | Typical Use Case |
| Casement Window | A window that opens outward using a crank handle. The sash is hinged on one side and swings outward like a door. Screens are typically placed on the interior side of the window. | Ideal for areas where ventilation is important such as kitchens, bathrooms, or living spaces. Often chosen for its tight seal and more upscale appearance. |
| Double Hung Window | A traditional window with two operable sashes that slide vertically. Both the top and bottom sections can move. | Common on traditional homes and in bedrooms where flexible airflow and easy cleaning are desirable. |
| Single Hung Window | Similar to a double hung window, but only the bottom sash moves while the top sash remains fixed. | A cost-effective option commonly used in residential construction where full ventilation flexibility is not necessary. |
| Picture Window | A large, fixed window where the glass is held within a sash but does not open. Designed primarily for views and natural light. | Often installed in living rooms or front-facing walls to maximize outdoor views and daylight. |
| Awning Window | Hinged at the top and opens outward from the bottom using a crank mechanism. | Frequently installed above or below larger windows, or in bathrooms and basements where ventilation is needed even during rain. |
| Slider / Glider Window | Opens horizontally by sliding one sash past another along a track. Screens are typically on the exterior side of the glass. | Common on the sides or back of homes and in spaces with wider wall openings where horizontal operation is more practical. |
| Direct Glaze Window | A fixed window where the glass is set directly into the frame without a separate sash component. | Used when a very clean, minimal look is desired and no operable function is needed. Often used in modern architecture. |
| Bay Window | A multi-panel window that projects outward from the wall, typically consisting of a center picture window with two angled side windows. | Used to create architectural interest, expand interior space, and provide wide views. Common in living rooms or dining areas. |
| Bow Window | Similar to a bay window but composed of four or more equally sized windows that create a curved outward projection. | Used to create a more rounded architectural feature and panoramic views, often on larger exterior walls. |
Read More: Choosing the Best Window Style for Your Home
What window brands are considered high quality?
Several manufacturers are widely considered top-tier window brands, including:
Wood interior windows with durable construction tend to offer longer lifespan and higher-end appearance compared to many vinyl alternatives.
Are vinyl windows a good option?
Vinyl windows are commonly used in residential construction, but they can be more susceptible to:
- Thermal expansion and contraction
- Warping over time
- Seal issues and air leaks
For this reason, some contractors prefer higher-end materials such as wood-clad or aluminum-clad windows.
Read More: Vinyl vs. Wood Windows: Which Is Best for Your Home in Cold Climates?
What is sash replacement?
A sash replacement replaces only the moving portion of the window that contains the glass.
With this method:
- Existing window frames remain in place
- Locks, hardware, and screens are reused
- New hardware can be installed if needed
Sash replacement is often faster and more affordable when the existing frame is still in good condition.
What is a full-frame window replacement?
A full-frame replacement removes the entire existing window unit down to the rough opening.
This installation includes:
- A brand new window frame and jambs – TH
- New glass and sash
- New hardware and screens
- Possible replacement or resetting of interior trim
Full-frame replacement is the most comprehensive option and is often used when existing frames are damaged or outdated.
Read More: Signs You Need to Replace Your Windows
What happens during the window ordering process?
Once your estimate is approved, Summit will schedule a Final Measure appointment. During this visit:
- A manufacturer’s representative
- Summit’s production manager
- Your Summit representative
will confirm all window specifications including:
- Window sizes and styles
- Interior and exterior colors
- Hardware selections
- Screen options
You will also receive a final scope sign-off and photo diagram showing which windows will be replaced.
How long does it take to order new windows?
Custom windows typically take 2–4 months to manufacture and deliver after the final measurements and selections are approved.
Because windows are custom-built for each home, orders cannot usually be canceled once manufacturing begins.
Will I need a permit for window replacement?
Permits may be required depending on your local city or municipality.
In many cases:
- Summit will obtain the necessary permits
- Homeowners may need to schedule the final inspection with the city
Inspectors may need access to the inside of the home.
How long does window installation take?
Most window installation projects take 1–3 days, depending on the number of windows being replaced. Full-frame replacements typically take longer than sash replacements. Crews can usually install 10–12 full-frame windows per day.
What should I expect during the installation process?
Before installation begins:
- A dumpster may be delivered to your driveway
- Windows will typically be staged in your garage
- Crews may set up saws and trim tools in the garage
During installation:
- Protective plastic and drop cloths will be used to protect floors
- Furniture may be shifted if necessary
- Crews will detach and reset blinds or window treatments
After installation, the crew will clean up and vacuum the work area.
What happens after the installation is complete?
After installation:
- The dumpster will usually be removed within a few days
- Final inspections may be required by your city
- Any touch-up work (trim, paint, hardware adjustments) may be scheduled within 1–2 weeks
Why do new windows sometimes have condensation?
Condensation on the inside of windows is usually caused by high indoor humidity, not a faulty window.
Because new windows seal much tighter than older windows, they can trap humidity inside the home.
Common sources of humidity include:
- Bathrooms
- Kitchens
- Indoor plants
- Aquariums
Managing indoor humidity and wiping condensation when it appears can help prevent moisture buildup.
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