Peninsula Glass & Motion Windows — Custom RV Window Replacement

Peninsula Glass, through its Motion Windows line, builds custom RV windows to any rough opening — the standard solution when an original Hehr, Philips or legacy coach window is discontinued and the frame is damaged. Custom units run roughly $400–$1,200 depending on size, opening style and dual-pane construction, with typical lead times of three to six weeks. Because they are built to your measurements, they install into the existing wall cutout without body modification.

What they make: Built-to-order sliders, awning windows, fixed panels, egress units, dual-pane assemblies
How to identify: Ordered by your measurements — no original part number required
Typical cost: $400 – $1,200 per custom window
Lead time: 3 – 6 weeks build time
Availability: Yes — made to order

Where Peninsula Glass (Motion Windows) glass shows up

Any RV with a discontinued or damaged window frameCustom coachesVintage restorationsSkoolie and van conversions

The measurement set a custom builder needs

Custom windows fail on measurement errors, not manufacturing. Supply rough opening width and height to the sixteenth, sidewall thickness, corner radius, opening style (slider, awning, fixed), glass tint, and whether you need dual pane or single pane.

Add a photograph of the opening from inside and outside. A builder can catch an out-of-square opening from photos and build a frame with the tolerance to absorb it — something you cannot fix after the unit ships.

Rough opening W x H to 1/16 inch
Sidewall thickness (typically 1 – 2.5 inches)
Corner radius: square, 1 inch, 2 inch
Opening style and hinge or slide direction
Tint, dual vs single pane, egress requirement

When custom beats hunting for NOS parts

Owners often spend months chasing new-old-stock windows for a discontinued series, then pay a premium for a 20-year-old unit with brittle seals. A built-to-size window with new seals, current hardware and dual-pane glass usually costs the same or less and lasts far longer.

The exception is a vintage restoration where originality matters — Airstream and classic coach owners frequently want the correct period frame profile, which pushes the job back toward re-glazing the original.

Peninsula Glass (Motion Windows) RV Glass FAQs

Can I get a custom RV window built for a discontinued frame?

Yes. Custom builders like Peninsula Glass / Motion Windows manufacture units to your exact rough opening, typically $400–$1,200 with a three to six week build time.

What measurements do I need for a custom RV window?

Rough opening width and height to the sixteenth, sidewall thickness, corner radius, opening style, glass tint, and single vs dual pane.

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