A cracked vent lid or bathroom skylight is an open door for water. We replace vents, fans, skylight domes and the sealing around them, and check the decking underneath.
Mobile service from New Bedford across South Coast MA, Plymouth County, the Upper Cape and nearby RI. $175 per hour · $3.50 per mile from New Bedford, one way ($50 minimum).
Plastic on an RV roof lasts about as long as you would expect in New England sun and ice. Vent lids crack, skylight domes go cloudy and split, and the sealant around the flange lets go. We replace the part with the correct fit, rebuild the flange seal, and inspect the roof opening for water damage while it is exposed.
Send us the RV year, make and model plus a photo of the vent or skylight and we will have the right part on the truck.
Problems we fix
Cracked, missing or sun-rotted roof vent lids
Cloudy, cracked or leaking bathroom skylight domes
Water entry around a vent or skylight flange
Damaged vent assemblies or interior garnish trim
Upgrading a manual vent to a powered roof fan
What the work includes
Inspection of the opening, flange, membrane and surrounding deck
Correct replacement part identification
Vent, lid, fan, garnish and skylight-dome replacement
Flange rebuild with compatible butyl and sealant
Repair of any water damage found around the opening
Good to know
Roof accessories are a good time to add a powered fan or upgrade a skylight. Ask when you book and we will bring the part.
Why vents and skylights fail
Vent lids and skylight domes are plastic sitting in full sun, and in New England they go brittle in five to ten years, faster with salt air. Hail and branches crack them, and the sealant around the flange ages on the same schedule as the rest of the roof. A cracked dome leaks directly into the bathroom ceiling; a failed flange seal leaks into the decking around the opening where you cannot see it until the ceiling sags. Both are cheap to fix early and expensive to ignore.
Lid, assembly or powered fan
Nearly every RV roof vent sits in a standard fourteen-by-fourteen-inch opening, which means three levels of repair. A cracked lid on a sound base is a lid swap, about twenty minutes. A damaged base, flange or crank is a full vent assembly replacement, about an hour to an hour and a half including the flange rebuild. And if you are replacing the assembly anyway, a powered roof fan is a small step up: reversible airflow, a thermostat, a rain shield or rain sensor so it can run in weather, and a remote on the better models. Powered fan installs run two to three hours with the 12-volt wiring. Skylights vary in size and are measured flange to flange; the outer dome is the leak point and the inner dome is cosmetic.
Replacement done right
We identify the correct part for your opening, remove the old unit, clean the flange area down to the membrane, inspect the decking around the opening for water damage, and set the new vent, fan or dome in fresh butyl tape with new fasteners and a self-leveling sealant cap over every screw head and edge, matched to your roof type. If the decking around the opening is soft, the job becomes a roof repair and we tell you before we proceed.
Is it the skylight, the vent or the air conditioner?
A bathroom ceiling that drips only in heavy rain is usually the skylight dome or flange. A stain near a vent is the vent flange or a cracked lid. A stain around the air conditioner is the AC gasket, which is a different repair. When the source is unclear we water-test each one separately rather than guessing.
What it costs
Vent and skylight replacement is $175 per hour plus parts and travel; most are a one to two hour job.
We come to your RV, find where the water is actually getting in, and fix the roof properly: membrane repairs, penetrations, transitions, edges and damaged decking.
Aged sealant is the number-one cause of RV roof leaks. We reseal every seam, vent, skylight, edge and penetration with the right product for your roof, before water gets in.
Water does not only come through the roof. Corner moldings, window frames, doors, lights and trim inserts all leak when their seals fail. We find the path and close it.