Duncan Systems RV Glass — Windshields, Windows & Sourcing

Duncan Systems is one of the largest RV glass distributors in North America, supplying motorhome windshields, side windows and hardware to installers by RV make, model and year. Owners generally do not buy direct — an RV glass specialist looks the part up, orders it, and includes freight in the quote. Coach windshields sourced this way run $900–$3,500 for the glass depending on whether the coach uses a single pane or a two-piece set.

What they make: Distribution: coach windshields, side glass, seals, moulding, adhesives
How to identify: Cross-referenced by RV year, make, model and chassis
Typical cost: $900 – $3,500 coach windshield glass (before labor)
Lead time: 3 days – 4 weeks depending on part and freight
Availability: Active distributor with broad coach-glass coverage

Where Duncan Systems glass shows up

Class A coaches of nearly every brandClass C cab and side glassBus conversions

Why coach glass is a freight problem, not a parts problem

A Class A windshield is a large, curved, laminated pane that ships crated on a pallet. Availability is usually fine; the lead time comes from freight routing and the crate's journey to a shop that can receive it. That is why the same part can quote at three days in Elkhart and three weeks in Montana.

Ask any shop two things: is the glass in a regional warehouse, and does the quote include freight and crating? Those two answers explain most of the price spread between quotes on the same coach.

What your installer needs from you

Part lookup keys off year, make, model, and chassis — plus whether the coach has a one-piece or two-piece windshield, and whether the glass is tinted, shaded at the top, or has a heated element or antenna embedded.

Photograph the full windshield from outside, plus a close-up of any dot-matrix band or embedded lines. That single photo set prevents the most common ordering error in coach glass: the correct part number for the wrong glass option.

Duncan Systems RV Glass FAQs

Can I buy RV glass directly from Duncan Systems?

Distribution is generally to installers rather than owners. An RV glass specialist looks up the part, orders it, and includes the glass and freight in your quote.

How much does coach windshield glass cost before labor?

Class A coach glass typically runs $900–$3,500 depending on size and whether the coach uses a single pane or a two-piece set. Labor, urethane, moulding and mobile travel are added on top.

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