Verified from the manufacturer’s own documentation · last checked September 18, 2026
| Manufacturer | Pella |
|---|---|
| Series | 250 Series |
| Frame material | Vinyl, multichambered frame with welded sash; optional foam-filled frame |
| Styles / configurations | Awning, casement, double-hung, single-hung, sliding, picture, bifold, bay and bow, as listed on Pella's own 250 Series page |
| Glass options | InsulShield glass family including Advanced Low-E, NaturalSun and SunDefense; dual-pane standard, triple-pane optional, argon fill |
| U-factor | Not published as a single range by Pella. NFRC-certified values are published per style and glazing option in Pella's Architectural Design Manual. A Pella dealer page cites U-factors as low as 0.27 for the configurations it sells |
| SHGC | Not published as a single range by Pella. A Pella dealer page cites SHGC as low as 0.21. Check the NFRC label of the exact unit quoted |
| VT | Not publicly specified |
| ENERGY STAR | Pella states the line offers options that meet or exceed ENERGY STAR certification in all 50 states |
| NFRC certification | NFRC-certified performance tables are published per style in Pella's Architectural Design Manual |
| Warranty | Per Pella's vinyl window and patio door limited warranty: non-glass materials and workmanship carry a Limited Lifetime Warranty for the original purchaser in an owner-occupied single-family home; on transfer of ownership, or when the buyer stops occupying the home, it is replaced by a transferable 10-year limited warranty; labor is included only within two years of the date of sale; laminated glass carries a transferable 10-year term. Read the current written warranty before purchase |
| Positioning | Pella markets the line on frame strength, stating multichambered frames and reinforced sashes are 52% stronger than ordinary vinyl, based on the force required to bend a frame profile |
| Price position | Not publicly specified |
| Installation | Insert and full-frame replacement; also sold through the Pella at Lowe's program |
Notes
VT not publicly specified in the sources checked. U-factor and SHGC figures are dealer-cited and configuration specific, not manufacturer summary values
Sources
Pella 250 Series product page (pella.com/ideas/windows/250-series); Pella vinyl window and patio door limited warranty PDF (media.pella.com); Pella Architectural Design Manual 2026, 250 Series overview and per-style performance tables; Pella dealer pages for dealer-cited U-factor and SHGC; regional installer pricing 2026