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Custom & Architectural Windows in Northwest Indiana

Circles, octagons, arches, and specialty shapes - built to match, with and exact price first visit.

  • Family-owned in Griffith, IN 

  • BBB Accredited

What Are Custom Shape Windows? 

Not every window is a rectangle. Pinnacle builds true architectural shapes - circles, half-rounds, eyebrows, octagons, trapezoids, triangles, and gothic tops - to match your home's original design.​

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Every shape is custom-built to 1/8", with the same foam-enhanced, fusion-welded frame and Energy Star 7.0 glass as our operating windows. 

Why Homeowners Choose Them

  • Perfect match - built to your exact opening, not a stock size

  • Preserve character - keep the architectural detail of older Northwest Indiana homes

  • Maximum efficiency - fixed shapes have the lowest air infiltration of any window

  • Pairs with operating windows - put a half-round over a picture, casement, or double hung

  • No maintenance - vinyl won't rot, peel, or need painting like old wood shapes

  • Color matched - white, sandstone, clay or 20+ exterior laminates

  • Lifetime warranty - same coverage as every Pinnacle window 

Popular Shapes We Build

  • Half-Round/Eyebrow - over entry doors and large picture windows

  • Circle & Octagon - gable ends and accent walls

  • Trapezoid & Triangle - under rooflines and vaulted ceilings

  • Arch Top & Gothic - traditional homes and churches

  • Custom combinations - any shape paired with operating windows below

Options

Glass: Clear, obscure, or LoE tinted (270, 366)

Grids: Optional to match existing windows

Installation: Full-frame replacement with interior/exterior trim matched

Energy: Foam-enhanced frame and warm-edge spacer for year-round comfort

Professional Installation, One Price

Specialty shaped require precise measuring - we template every opening. 

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Homeowners like our straightforward approach:

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  • Exact pricing on the first visit, good for 6 months

  • No 3-hour sales presentations

  • Professional, licensed and insured installers

  • Lifetime warranty - we come back for service calls 

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Serving Homeowners Across Northwest Indiana, as well as parts of Illinois & Michigan

Lake County, Porter County, LaPorte County, Newton County, Jasper County, Starke County, Pulaski County, plus Northeast Illinois and Southwest Michigan. 

​Schedule Your Window Consultation

Have an odd-shaped window? We'll measure it and give you an exact price today.

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