Choosing the best single hung double pane window starts with getting the size and glass details right. A single hung design opens at the lower sash while the upper sash stays fixed, and double-pane glass can help limit heat transfer compared with a single pane. The options below include compact vinyl windows with tilt-in sashes, plus one model whose listing does not clearly confirm a double-pane build. Check the exact dimensions and specifications before you order.
Table of Contents
Quick Comparison
| Window | Listed size | Frame and glass | Notable features |
|---|---|---|---|
| COLORPAPA White Vinyl Single Hung Window | 24" x 36" | Vinyl; double-pane insulated tempered glass | Tilt-in lower sash, screen, rear drainage, J-channel |
| NOTASA White Vinyl Single Hung Window | 24" x 30" | Vinyl; double-pane insulated tempered glass | Tilt-in sash, screen, rear drainage |
| Pro Windows Vinyl Single Hung Window | 18" x 36" | Vinyl; tempered glass; pane count needs confirmation | Low-E glass, claimed NFRC certification, fiberglass screen |
| COLORPAPA Black Vinyl Single Hung Window | 36" x 54" | Vinyl; double-pane insulated tempered glass | Tilt-in lower sash, screen, J-channel, rear drainage |
Our Picks: Best Single Hung Double Pane Windows reviews
COLORPAPA 24" x 36" Window: A Compact All-Around Choice
This white COLORPAPA window pairs a vinyl frame with double-pane insulated tempered glass in a 24" x 36" size. The lower sash tilts inward, which can make it easier to clean from inside the room. Its vertical sliding design and included screen also let you open the bottom sash for ventilation while helping keep insects out.
The listing describes reinforced, UV-resistant vinyl, pre-drilled installation holes, a built-in J-channel, and a rear drainage system. Those details make it worth considering for a mobile home update or another project where the size fits. Still, a window’s fit and weather seal depend heavily on correct measuring and installation; the listed features are not a substitute for checking the opening and installation instructions.
Compared with the smaller NOTASA model, this one offers a taller listed size. It is a straightforward choice if you want a white vinyl window with clearly stated double-pane glass and a tilt-in lower sash. The listing does not provide specific energy ratings, so do not assume a particular level of energy savings.
Pros:
- Double-pane insulated tempered glass is clearly specified.
- Tilt-in lower sash helps with indoor cleaning access.
- Includes a screen and rear drainage feature.
- Pre-drilled holes and a built-in J-channel are listed.
Cons:
- Confirm the frame and rough-opening dimensions before ordering.
- The listing does not provide specific energy-rating figures.
Verdict: Choose this COLORPAPA model if its 24" x 36" size fits your project and you want a white vinyl window with confirmed double-pane glass and a tilt-in sash.
NOTASA 24" x 30" Window: A Shorter Double-Pane Option
The NOTASA is a white vinyl single hung window listed at 24" x 30". Its product information specifies double-pane insulated tempered glass, a vertical sliding sash, and an included screen. The lower sash tilts inward for cleaning, so you may not need to reach outside to wipe its surfaces.
A rear drainage outlet is intended to channel water away from the window, and the listing describes the frame as reinforced and weather-resistant. These features may suit a small replacement project where the shorter height is useful. As with any replacement window, confirm whether the listed dimensions refer to the unit itself or the opening it is designed to fit.
Against the 24" x 36" COLORPAPA, the NOTASA is the shorter option and has a simpler listed feature set. It may be a better fit when space or an existing opening calls for a compact window. The product information does not give a specific energy rating or detailed installation dimensions, so check those points with the seller before committing.
Pros:
- Double-pane insulated tempered glass is specified in the listing.
- Tilt-in sash supports easier indoor cleaning.
- Includes a screen and rear drainage outlet.
- Compact listed size may suit smaller openings.
Cons:
- Shorter height may not suit openings designed for a taller unit.
- Specific energy ratings and detailed fitting instructions are not provided in the supplied information.
Verdict: Consider the NOTASA if you need a compact 24" x 30" window and want double-pane glass, a screen, and a tilt-in lower sash.
Pro Windows 18" x 36" Window: Low-E Features for Smaller Spaces
This white vinyl window is listed at 18" x 36" and is presented for uses such as bathrooms, basements, sheds, and mobile homes. Its description highlights Low-E glass, a fiberglass screen, a latch lock, and tempered glass. It also claims NFRC certification and says the certification covers measures such as U-factor and solar heat gain coefficient.
One important detail needs checking: the supplied product information does not clearly state that this model has double-pane glass. Low-E describes a glass coating, not the number of panes. If double-pane construction is a must-have, confirm the pane count and glass assembly with the seller before buying. This model may stand out for its stated Low-E feature and certification claim, but those claims do not resolve that missing specification.
The 18" width makes it the narrowest listed choice here. That could suit a small opening, but it may not provide the same opening area as the wider options. Its screen and latch add useful everyday features, though you should compare its exact frame size and installation requirements with your project.
Pros:
- Low-E glass is specified in the product description.
- The listing claims NFRC certification and references energy metrics.
- Includes a fiberglass screen and latch lock.
- Narrow listed width may suit a small window opening.
Cons:
- The supplied information does not clearly confirm double-pane construction.
- Verify the certification details and exact dimensions before purchase.
Verdict: This Pro Windows model is worth considering for a narrow space if Low-E glass is a priority, but confirm that it is double pane before choosing it for a double-pane project.
COLORPAPA 36" x 54" Black Window: A Larger, Dark-Frame Choice
This black COLORPAPA window is the largest option in the group, with a listed size of 36" x 54". The product information specifies a vinyl frame and double-pane insulated tempered glass. Its lower sash tilts inward, and the listing also describes a screen, pre-drilled holes, a J-channel, and rear drainage.
The black finish gives it a different look from the white models, while the larger listed dimensions may suit a more generous opening. The same fit checks apply: compare the window’s actual frame dimensions with the rough opening and confirm installation details before you plan the work. A larger unit can also be less convenient to handle during installation, so consider whether you have the help and access the job requires.
This model shares many listed features with the smaller COLORPAPA option, but its main distinction is size and color. The supplied product data marks it as unavailable, so check the listing before relying on it for a project schedule. Its product description does not include specific energy-rating figures.
Pros:
- Double-pane insulated tempered glass is specified.
- Largest listed size in this comparison and a black finish.
- Tilt-in lower sash and included screen support cleaning and ventilation.
- Listing describes pre-drilled holes, a J-channel, and rear drainage.
Cons:
- Marked unavailable in the supplied product information.
- Confirm measurements and arrange suitable installation help for the larger unit.
Verdict: Choose this model only if the black finish and larger size suit your opening and the listing is available when you are ready to buy.
How to Choose a Single Hung Double Pane Window
Measure the opening, not just the label
Start by measuring the existing window unit and the rough opening, then compare those figures with the manufacturer’s installation instructions. Product titles may show a size without explaining whether it is the exact frame size or a nominal size. Check width and height, frame depth, and the space needed to install and seal the unit. If you are replacing a window, do not assume a unit with similar listed dimensions will fit without adjustment.
Confirm the glass construction
Look for clear wording that the window has two panes and is insulated. Low-E refers to a coating that can affect heat and sunlight transfer; it does not, by itself, confirm that glass is double pane. The Pro Windows listing mentions Low-E and tempered glass but does not clearly state the pane count in the supplied information. Ask for the full glass specifications if the listing leaves out a detail that matters to your project.
Compare energy details, not broad claims
Statements such as “energy efficient” do not tell you how a specific window performs. When available, check the window’s energy-rating information, including U-factor and solar heat gain coefficient. The Pro Windows listing claims NFRC certification, while the other supplied descriptions do not provide specific figures. Compare verified specifications for your climate and window location instead of assuming all double-pane windows perform the same way.
Choose features that match how you will use it
A single hung window generally opens at the lower sash while the upper sash remains fixed. A screen can help keep insects out while the window is open, and a tilt-in sash can make cleaning more convenient. Think about how often you will open the window, whether you can reach it safely, and how much ventilation the opening provides. Check the product details to confirm which features are included.
Check frame, drainage, and installation details
Vinyl frames are presented across these options as low-maintenance and weather-resistant, but proper installation still matters. Look for details such as drainage paths, pre-drilled holes, and the kind of exterior finish or channel included. Follow the manufacturer’s instructions for flashing, sealing, and fastening. If you are not comfortable with the work, consider getting help from a qualified installer.
Consider safety and local requirements
Tempered glass is identified on several of these listings, but do not assume that it meets every requirement for your location or installation. Check local building rules, especially for windows near doors, tubs, or other areas where safety glazing may be required. If the window will be in a bedroom or another required exit area, confirm that its opening size and operation meet local egress rules before buying.
Frequently Asked Questions
What does “single hung” mean?
A single hung window has one movable sash, usually the lower one, while the upper sash stays fixed. It opens vertically and can provide ventilation through the open lower section.
What is the benefit of double-pane glass?
Double-pane glass has two panes separated by an insulating space. It can help reduce heat transfer and outside noise compared with single-pane glass, but the result depends on the full window design, installation, and conditions around the home.
Does Low-E glass mean a window is double pane?
No. Low-E refers to a coating on the glass. It does not confirm the number of panes, so check the product specifications for an explicit double-pane statement.
Are the listed dimensions the rough-opening size?
Not necessarily. A product’s listed size may refer to the window unit or use a nominal measurement. Check the seller’s or manufacturer’s installation details and measure your opening before ordering.
Can I clean a tilt-in sash from inside?
A tilt-in sash is designed to angle inward to make cleaning more accessible from inside. The COLORPAPA and NOTASA listings describe tilt-in lower sashes, as does the black COLORPAPA listing. Confirm how the sash releases and tilts in the instructions for your specific model.
Which window is the safest choice for a confirmed double-pane build?
The two white models from COLORPAPA and NOTASA, along with the black COLORPAPA model, explicitly describe double-pane insulated tempered glass in the supplied product information. The Pro Windows listing does not clearly state its pane count, so verify that detail before purchasing it.
Final Recommendation
For a clearly specified double-pane option with a tilt-in sash, the COLORPAPA 24" x 36" is the most balanced starting point if its dimensions fit your opening. Choose the NOTASA for a shorter 24" x 30" installation, or consider the larger black COLORPAPA if its size and availability work for your project. Treat the Pro Windows model as a conditional pick until its pane count is confirmed. In every case, verify the exact measurements, glass specifications, and installation requirements before ordering.
