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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:
400/500 Series Double Hung
Product Category Field details:
Window
Product Type Field details:
Double Hung
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.24
ME Total ES Options Certified Field details:
134
ME Northern Zone Options Field details:
30
ME North-Central Zone Options Field details:
100
ME Southern Zone Options Field details:
122
ME South-Central Zone Options Field details:
88
Series Name:
3002 Double Slider
Product Category Field details:
Window
Product Type Field details:
Double Slider
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.06
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.36
ME Total ES Options Certified Field details:
41,984
ME Northern Zone Options Field details:
11,887
ME North-Central Zone Options Field details:
26,177
ME Southern Zone Options Field details:
36,292
ME South-Central Zone Options Field details:
20,485
Series Name:
0971 Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.10
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.33
ME Total ES Options Certified Field details:
8,169
ME Northern Zone Options Field details:
2,231
ME North-Central Zone Options Field details:
5,165
ME Southern Zone Options Field details:
7,482
ME South-Central Zone Options Field details:
4,478
Series Name:
2630 Fixed Casement
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:
0.13
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.44
ME Total ES Options Certified Field details:
359
ME Northern Zone Options Field details:
188
ME North-Central Zone Options Field details:
304
ME Southern Zone Options Field details:
223
ME South-Central Zone Options Field details:
178
Series Name:
Sanford Hills Fixed Casement
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:
0.45
ME U-Factor Max Field details:
0.15
ME SHGC Max Field details:
0.46
ME Total ES Options Certified Field details:
2
ME Northern Zone Options Field details:
2
ME North-Central Zone Options Field details:
0
ME Southern Zone Options Field details:
0
ME South-Central Zone Options Field details:
0
Series Name:
Pinnacle Clad Radius Direct Glaze
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.50
ME Total ES Options Certified Field details:
360
ME Northern Zone Options Field details:
252
ME North-Central Zone Options Field details:
257
ME Southern Zone Options Field details:
149
ME South-Central Zone Options Field details:
102
Series Name:
7420/3120/8620 Double Hung
Product Category Field details:
Window
Product Type Field details:
Double Hung
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.34
ME Total ES Options Certified Field details:
579
ME Northern Zone Options Field details:
295
ME North-Central Zone Options Field details:
489
ME Southern Zone Options Field details:
490
ME South-Central Zone Options Field details:
400
Series Name:
7420/3120/8620 Double Hung
Product Category Field details:
Window
Product Type Field details:
Double Hung
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.34
ME Total ES Options Certified Field details:
579
ME Northern Zone Options Field details:
295
ME North-Central Zone Options Field details:
489
ME Southern Zone Options Field details:
490
ME South-Central Zone Options Field details:
400
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:
18,174
ME Northern Zone Options Field details:
4,304
ME North-Central Zone Options Field details:
12,231
ME Southern Zone Options Field details:
16,236
ME South-Central Zone Options Field details:
10,293
Series Name:
1650 Polyvinyl Chloride (PVC) Fixed (Direct Set) 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:
0.09
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.47
ME Total ES Options Certified Field details:
2,037
ME Northern Zone Options Field details:
697
ME North-Central Zone Options Field details:
1,057
ME Southern Zone Options Field details:
1,555
ME South-Central Zone Options Field details:
725
Series Name:
Sanford Hills Awning
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.37
ME Total ES Options Certified Field details:
79
ME Northern Zone Options Field details:
35
ME North-Central Zone Options Field details:
58
ME Southern Zone Options Field details:
54
ME South-Central Zone Options Field details:
33
Series Name:
MB-79N/MB-86N SI Fixed Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Aluminum
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.04
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.44
ME Total ES Options Certified Field details:
1,046
ME Northern Zone Options Field details:
668
ME North-Central Zone Options Field details:
886
ME Southern Zone Options Field details:
568
ME South-Central Zone Options Field details:
412
Series Name:
Sanford Hills Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.37
ME Total ES Options Certified Field details:
85
ME Northern Zone Options Field details:
34
ME North-Central Zone Options Field details:
62
ME Southern Zone Options Field details:
64
ME South-Central Zone Options Field details:
41
Series Name:
Envision Casement Picture
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:
0.18
ME U-Factor Max Field details:
0.17
ME SHGC Max Field details:
0.30
ME Total ES Options Certified Field details:
24
ME Northern Zone Options Field details:
18
ME North-Central Zone Options Field details:
24
ME Southern Zone Options Field details:
12
ME South-Central Zone Options Field details:
12
Series Name:
3075 Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.09
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.38
ME Total ES Options Certified Field details:
3,059
ME Northern Zone Options Field details:
509
ME North-Central Zone Options Field details:
1,395
ME Southern Zone Options Field details:
2,808
ME South-Central Zone Options Field details:
1,144
Series Name:
8540T2 Casement
Product Category Field details:
Window
Product Type Field details:
Casement Windows
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.09
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.38
ME Total ES Options Certified Field details:
2,939
ME Northern Zone Options Field details:
448
ME North-Central Zone Options Field details:
1,287
ME Southern Zone Options Field details:
2,713
ME South-Central Zone Options Field details:
1,061
Series Name:
8354 Fixed
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:
0.12
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.47
ME Total ES Options Certified Field details:
1,156
ME Northern Zone Options Field details:
352
ME North-Central Zone Options Field details:
346
ME Southern Zone Options Field details:
986
ME South-Central Zone Options Field details:
213
Series Name:
442/6802 Awning
Product Category Field details:
Window
Product Type Field details:
Awning (Projected)
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.15
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.42
ME Total ES Options Certified Field details:
555
ME Northern Zone Options Field details:
276
ME North-Central Zone Options Field details:
412
ME Southern Zone Options Field details:
390
ME South-Central Zone Options Field details:
261
Series Name:
IGLO 5 Classic Fixed 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:
0.04
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.46
ME Total ES Options Certified Field details:
695
ME Northern Zone Options Field details:
543
ME North-Central Zone Options Field details:
590
ME Southern Zone Options Field details:
233
ME South-Central Zone Options Field details:
148
Series Name:
400 Series Tilt-Wash Double-Hung Transom Full-Frame Window
Product Category Field details:
Window
Product Type Field details:
Picture Window
Frame Material:
Wood
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.13
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.43
ME Total ES Options Certified Field details:
452
ME Northern Zone Options Field details:
150
ME North-Central Zone Options Field details:
290
ME Southern Zone Options Field details:
330
ME South-Central Zone Options Field details:
180