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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:
Vinyl 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:
0.15
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.25
ME Total ES Options Certified Field details:
129
ME Northern Zone Options Field details:
43
ME North-Central Zone Options Field details:
100
ME Southern Zone Options Field details:
120
ME South-Central Zone Options Field details:
91
Series Name:
6300 Large 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:
0.17
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.43
ME Total ES Options Certified Field details:
114
ME Northern Zone Options Field details:
48
ME North-Central Zone Options Field details:
66
ME Southern Zone Options Field details:
82
ME South-Central Zone Options Field details:
40
Series Name:
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:
0.15
ME SHGC Min. Field details:
0.14
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.25
ME Total ES Options Certified Field details:
126
ME Northern Zone Options Field details:
43
ME North-Central Zone Options Field details:
100
ME Southern Zone Options Field details:
117
ME South-Central Zone Options Field details:
91
Series Name:
7500 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:
0.18
ME SHGC Max Field details:
0.22
ME Total ES Options Certified Field details:
36
ME Northern Zone Options Field details:
24
ME North-Central Zone Options Field details:
36
ME Southern Zone Options Field details:
36
ME South-Central Zone Options Field details:
36
Series Name:
442/6802 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:
0.42
ME Total ES Options Certified Field details:
573
ME Northern Zone Options Field details:
274
ME North-Central Zone Options Field details:
411
ME Southern Zone Options Field details:
410
ME South-Central Zone Options Field details:
263
Series Name:
IGLO EDGE 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:
0.21
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.42
ME Total ES Options Certified Field details:
23
ME Northern Zone Options Field details:
18
ME North-Central Zone Options Field details:
16
ME Southern Zone Options Field details:
13
ME South-Central Zone Options Field details:
8
Series Name:
9660 Polyvinyl Chloride (PVC) 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:
0.15
ME SHGC Min. Field details:
0.07
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.37
ME Total ES Options Certified Field details:
1,709
ME Northern Zone Options Field details:
232
ME North-Central Zone Options Field details:
831
ME Southern Zone Options Field details:
1,577
ME South-Central Zone Options Field details:
699
Series Name:
8350.8351.8357 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:
0.48
ME Total ES Options Certified Field details:
785
ME Northern Zone Options Field details:
296
ME North-Central Zone Options Field details:
263
ME Southern Zone Options Field details:
599
ME South-Central Zone Options Field details:
123
Series Name:
8520T2.8530T2.8570T2 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:
0.39
ME Total ES Options Certified Field details:
1,768
ME Northern Zone Options Field details:
516
ME North-Central Zone Options Field details:
931
ME Southern Zone Options Field details:
1,553
ME South-Central Zone Options Field details:
716
Series Name:
A172/A173/A175 Sliding Patio Door
Product Category Field details:
Door
Product Type Field details:
Sliding Patio Door
Frame Material:
Vinyl (or other plastic)
ME U-Factor Min Field details:
0.15
ME SHGC Min. Field details:
0.07
ME U-Factor Max Field details:
0.22
ME SHGC Max Field details:
0.35
ME Total ES Options Certified Field details:
3,419
ME Northern Zone Options Field details:
1,493
ME North-Central Zone Options Field details:
2,398
ME Southern Zone Options Field details:
2,549
ME South-Central Zone Options Field details:
1,528
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