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Based in New Bedford · Mobile service across South Coast MA, Plymouth County, Cape Cod & RI

Cracked lids, leaking flanges, sun-rotted domes

RV Roof Vent & Skylight Replacement

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).

RV Roof Vent & Skylight Replacement by Mobile RV Repair Now

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.

Full rates →

Common questions about RV roof vent & skylight replacement

Can you replace just the vent lid?

Yes, if the base and flange are sound. If the flange seal has failed we rebuild it at the same time so the new lid is not sitting over a leak.

My skylight is cloudy and cracked. Is it leaking?

Probably. UV-damaged domes crack at the flange and let water into the bathroom ceiling. Replacement is inexpensive compared to a ceiling repair.

Do you install MaxxAir or Fan-Tastic roof fans?

Yes. We install powered fans in standard 14x14 openings and rebuild the seal around them.

Can you replace just the vent lid?

Yes, if the base and flange are sound. If the flange seal has failed we rebuild it at the same time so the new lid is not sitting over a leak.

My skylight is cloudy and cracked. Is it leaking?

Probably. UV-damaged domes crack at the flange and let water into the bathroom ceiling. Replacement is inexpensive compared to a ceiling repair.

Do you install MaxxAir or Fan-Tastic roof fans?

Yes. We install powered fans in standard 14x14 openings, wire them, and rebuild the seal around them.

Can I run a powered roof fan in the rain?

Models with a built-in rain shield can run in rain; models with a rain sensor close automatically. We help you pick based on how you camp.

Will a new fan fit my existing hole?

Almost always. The 14x14 opening is standard across brands. We confirm on site before ordering.

Leaks, membrane puncture repairs, tree damage and failed roof edges

RV Roof Repair

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.

RV Roof Repair details

Seams, vents, skylights, edges and penetrations

RV Roof Resealing

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.

RV Roof Resealing details

Read before you call

RV Roof Vent & Skylight Replacement near you

We provide RV roof vent & skylight replacement throughout our service area, including:

Ready when you are

Call or text with the year, make, model and where the RV sits. Send photos if you have them. You'll talk to the technician, not a call center.

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