RV Awning Window Replacement

RV awning window replacement costs $325–$850 installed. Awning windows are top-hinged and crank or push outward, so most problems are mechanical — worn torque arms, seized operators, and sagging sashes are $50–$250 repairs. Replace the assembly when the glass is broken, the frame has racked out of square, or a dual-pane sash has fogged.

Dual-pane RV side window on a white travel trailer showing a failed thermal seal between the glass panes — A dual-pane RV window that has lost its thermal seal: the haze sits between the panes, so cleaning the surfaces changes nothing — the insulated unit has to be rebuilt or replaced.Photo: RV Glass Directory

Glass type: Tempered sash on a top hinge with torque arms or a crank operator
Typical cost: $325 – $850 installed
Lead time: 5 – 20 business days
Repairable?: Operators, torque arms and seals are serviceable; glass is not

Where you'll find rv awning windows

Travel trailersFifth wheelsClass CClass A

Why awning windows are worth repairing first

An awning window is the only RV window you can leave open in the rain, which is why they end up over dinettes and beds. That top hinge and the arms that hold the sash open are also the parts that wear. A sash that droops at one corner, won't stay open, or takes force to close is almost always an arm or operator problem — not a reason to buy a new window.

Because arms and operators are supplier parts rather than coach-specific, they source in days rather than weeks, and a mobile tech can usually do the work in your site.

Torque arm pair replacement: $50 – $160
Crank operator / gearbox: $70 – $220
Hinge service and realignment: $90 – $250
Perimeter seal and flange reseal: $120 – $300
Full awning window assembly: $325 – $850 installed

The leak pattern specific to awning windows

Because the sash overhangs when open, owners assume awning windows can't leak. What actually happens is that the exterior flange tape at the top edge fails, and water entering there runs behind the interior trim rather than into the sash. The tell is a stain on the wall below the window that appears only after highway driving in rain — wind-driven water at speed finds the top flange first.

Fixing it means pulling the window, replacing the butyl behind the flange, and resetting the clamp ring. Surface-caulking the outside traps water in the wall and makes it worse.

RV Awning Window FAQs

Why won't my RV awning window stay open?

The torque arms have lost their friction or the operator gearbox is stripped. Arms are $50–$160 for the pair and are a same-day fix.

Can I convert an awning window to a slider?

Only if a slider exists in the exact frame size for your wall thickness — the opening and clamp ring must match. In practice most owners replace like for like.

How much does an RV awning window cost?

$325–$850 installed depending on size and whether it's single or dual-pane. Mechanical repairs to a sound window run $50–$300.

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