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  • ENERGY STAR Most Efficient 2025
    Windows, Doors & Skylights
    THE YEAR'S BEST OF ENERGY STAR FOR EFFICIENCY & INNOVATION

    Products that make the ENERGY STAR Most Efficient list for 2025 deliver cutting edge energy efficiency along with the latest in technological innovation. They represent the year’s very best for energy savings and environmental protection.
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Series Name:
7700, 8400, 8800 Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.14
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.47
ME Total ES Options Certified Field details:
2,444
ME Northern Zone Options Field details:
229
ME North-Central Zone Options Field details:
318
ME Southern Zone Options Field details:
2,264
ME South-Central Zone Options Field details:
206
Series Name:
5400, 7700 Casement Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.11
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.44
ME Total ES Options Certified Field details:
1,090
ME Northern Zone Options Field details:
214
ME North-Central Zone Options Field details:
367
ME Southern Zone Options Field details:
990
ME South-Central Zone Options Field details:
286
Series Name:
7700/8400/8800 Single Hung
Product Category Field details:
Window
Product Type Field details:
Single Hung
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.16
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.26
ME Total ES Options Certified Field details:
18,106
ME Northern Zone Options Field details:
4,304
ME North-Central Zone Options Field details:
12,231
ME Southern Zone Options Field details:
16,168
ME South-Central Zone Options Field details:
10,293
Series Name:
5400 5400S 7700 9900 Series Vinyl Fixed Window Transom
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.17
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.49
ME Total ES Options Certified Field details:
218
ME Northern Zone Options Field details:
28
ME North-Central Zone Options Field details:
24
ME Southern Zone Options Field details:
194
ME South-Central Zone Options Field details:
12
Series Name:
5400, 5400S, 7700, 8400, 8800, 9900 Series Vinyl Out-Swing Casement Window
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.17
ME SHGC Min. Field details:
0.09
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.37
ME Total ES Options Certified Field details:
482
ME Northern Zone Options Field details:
24
ME North-Central Zone Options Field details:
133
ME Southern Zone Options Field details:
470
ME South-Central Zone Options Field details:
121
Series Name:
5400, 5400S, 7700, 8400, 8800, 9900 Series Vinyl Awning Window
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.17
ME SHGC Min. Field details:
0.09
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.37
ME Total ES Options Certified Field details:
402
ME Northern Zone Options Field details:
24
ME North-Central Zone Options Field details:
134
ME Southern Zone Options Field details:
390
ME South-Central Zone Options Field details:
122
Series Name:
7700, 9900 Basement Window
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.17
ME SHGC Min. Field details:
0.09
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.37
ME Total ES Options Certified Field details:
402
ME Northern Zone Options Field details:
24
ME North-Central Zone Options Field details:
134
ME Southern Zone Options Field details:
390
ME South-Central Zone Options Field details:
122
Series Name:
7700, 8400, 8800 Double Hung Window
Product Category Field details:
Window
Product Type Field details:
Double Hung
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.18
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.41
ME Total ES Options Certified Field details:
602
ME Northern Zone Options Field details:
184
ME North-Central Zone Options Field details:
351
ME Southern Zone Options Field details:
532
ME South-Central Zone Options Field details:
296
Series Name:
7700, 8400, 8800 Horizontal Sliding Window
Product Category Field details:
Window
Product Type Field details:
Double Slider
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.19
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.41
ME Total ES Options Certified Field details:
414
ME Northern Zone Options Field details:
102
ME North-Central Zone Options Field details:
213
ME Southern Zone Options Field details:
390
ME South-Central Zone Options Field details:
196
Series Name:
5400 5400S 7700 9900 Series Vinyl Fixed Window Sidelite
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.21
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.22
ME Total ES Options Certified Field details:
19
ME Northern Zone Options Field details:
0
ME North-Central Zone Options Field details:
0
ME Southern Zone Options Field details:
19
ME South-Central Zone Options Field details:
0
Series Name:
Series 400, 500, 5400 Picture Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.22
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.21
ME Total ES Options Certified Field details:
42
ME Northern Zone Options Field details:
0
ME North-Central Zone Options Field details:
0
ME Southern Zone Options Field details:
42
ME South-Central Zone Options Field details:
0
Series Name:
400 500 Vinyl Fixed Window Transom
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.22
ME SHGC Min. Field details:
0.16
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.20
ME Total ES Options Certified Field details:
75
ME Northern Zone Options Field details:
0
ME North-Central Zone Options Field details:
0
ME Southern Zone Options Field details:
75
ME South-Central Zone Options Field details:
0