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Serving Bernalillo County

Roof Vent and Skylight Repair in Albuquerque, NM

Repairs to roof vents, exhaust caps and skylights in Albuquerque and the towns around it, sealed and tested rather than only caulked.

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  • Roof repair and full replacement
  • Leaks, hail and storm damage
  • Flat and pitched roofs

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Vent and Skylight

Roof Vent and Skylight Repair: what it covers

Quick answer

Vents and skylights are penetrations through the roof, and each one has a curb, a seal or a flange that keeps water out. A roofer repairs the curb, replaces the seal or dome, and tests the joint before leaving the roof.

Roof Vent and Skylight Repair illustration for Albuquerque, NM

A roof with a few penetrations is a roof with a few places to fail. Every vent pipe, exhaust cap, attic fan and skylight is a hole the roof is built around, and each hole has a seal that ages on its own schedule. The seals on these fittings are often the first thing to crack, because they sit in the sun and move with the temperature.

Skylights add a second problem. The dome or glazing can be sound while the curb it sits on lets water in at the corners. A skylight that leaks at the frame is usually not a glass problem at all, and the repair is to the curb and its flashing. A roofer checks the frame before deciding anything about the glazing.

This page covers the common vent and skylight repairs, how a roofer tests them, and what a sound job looks like. The work is quick and precise, and it is worth doing before a storm rather than after one.

Service area
Albuquerque & Bernalillo County
Availability
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Warning signs

Signs you need roof vent and skylight repair

Skylights are fragile. Do not walk on a skylight or step on the dome, and keep clear of the roof around an open curb. Let the roofer handle glazing and fixings.

  • Water staining on the ceiling directly below a skylight, at the corners rather than the centre
  • A vent pipe collar that is cracked, split or shrinking away from the pipe
  • Dried or cracked sealant around the base of an exhaust cap or an attic fan
  • Condensation or drips around a skylight that appear only after rain
  • A cracked or yellowed skylight dome that has lost its clarity
  • Rattling or movement of a vent cap in the wind, which means the fixings have worked loose
Our process

How our roof vent and skylight repair visit works

  1. Inspect the curb and the seal

    The roofer checks each vent and skylight from the attic and from the roof, looking at the curb, the seal, the fixings and the dome or cap. Each is marked as sound, worn or failed.

  2. Test the skylight before opening it

    A skylight is tested with water poured around the frame, from the roof and then from the room below, to find which corner or joint lets the water through. This is done before any part is replaced.

  3. Replace the seal, the collar or the dome

    Split collars are replaced, cracked domes are changed for a matching unit where one is available, and failed seals are renewed. The fixings are checked for corrosion and replaced if they have worked loose.

  4. Reflash the curb where it is needed

    Where the curb's flashing has lifted, the flashing is reset under the covering and sealed to the curb. A skylight curb is only as good as the flashing that laps it.

  5. Re-test and record the result

    Each repaired unit is tested with water again, and the result is recorded with the position on the roof, the part replaced and the product used.

Why does a skylight leak at the corners?

Because the corners are where the flashing changes direction and where water collects at the curb. A leak at the corners usually means the curb flashing has opened, and the glass is not to blame.

A skylight curb is a frame with flashing that laps the covering on all four sides. Water runs down the slope of the roof and meets the curb. At the top corner the flashing has to turn and at the bottom corners the water collects, so these are the points that fail first. A stain at the lower corners of the ceiling below a skylight is a classic sign of a failed curb.

The roofer checks the flashing at each corner, resets any lap that has lifted and seals the joints with the product the skylight maker names. Where the frame itself has rotted or cracked, the curb is replaced rather than sealed.

  • Check the flashing at each corner first
  • Reset any lap that has lifted
  • Replace a rotted or cracked curb rather than sealing it

How are vent and skylight seals tested?

With a hose or a poured measure of water, applied from above to each joint in turn, and watched from below.

Testing is simple and it is what separates a repair from a guess. The roofer runs water over each joint, starting at the top and moving down, and a second person watches the ceiling or the attic below. The first joint that shows water is the one that needs work. Testing one joint at a time takes longer but avoids replacing a part that was not the cause.

The same test is run after the repair. A repair that has not been tested is a repair that has not been proven, and the record should say that the test was done and what it showed.

  • Test one joint at a time, from the top down
  • Have someone watch the ceiling or attic below
  • Test again after the repair and record the result

Should a vent or skylight be replaced or repaired?

Repair the seal, the collar or the flashing where those parts are the fault. Replace the whole unit where the frame, the curb or the dome has failed beyond repair.

A vent or skylight is a small part of the roof, and it is not always worth the full cost of a new unit. Where the frame and curb are sound, a new seal or collar is the right answer. Where the frame has cracked, the glazing has failed and the curb is rotted, a new unit is the honest choice, and the roofer says so with the reasons written down.

Ask for the age of the unit and the manufacturer's detail. A unit from a discontinued line may not be matched, and the roofer explains the options for a replacement that fits the opening.

  • Repair where the seal, collar or flashing is the fault
  • Replace where the frame, curb or dome has failed
  • Ask whether the unit is still made in a matching size

What should a vent or skylight repair record show?

The position of each unit, the test result before and after the work, the part replaced and the product used, with the date.

A record for a vent or skylight repair is short but specific. It should name each unit by its position on the roof, record the test result before the work and after it, and list the part replaced with its size and the product used. A unit that was tested and found sound is worth listing too, so the next roofer knows what was checked.

Keep the record with the roof file. A skylight or vent that is replaced later can be traced back to its previous repair, and the record shows whether the failure was in the seal, the curb or the glazing.

  • Each unit named by its position on the roof
  • The test result before and after the work
  • The part replaced, its size and the product used
Options

Types and options for roof vent and skylight repair

Vent collar and exhaust cap repair

Replacing a split rubber collar or re-seating an exhaust cap. A small, quick job that often prevents a ceiling stain from appearing.

Skylight curb and flashing repair

Resetting or replacing the flashing around a skylight curb, which is where most skylight leaks come from. Often the right repair even when the glazing looks worn.

Skylight dome or glazing replacement

Replacing a cracked, clouded or yellowed dome with a matching unit, where one can be sourced. The curb is checked at the same visit.

Bernalillo County

Why roof vent and skylight repair is different in Greater Albuquerque

The FACTS sheet gives no sourced monthly weather drivers for the city, so this page does not say when seals are most likely to fail here. Sealants age faster in strong sun and in cold snaps, and the roofer checks them on every visit.

Skylights and vents on houses in the outlying towns are repaired the same way. The travel distance is what changes the quote.

Hail reports near the metro are a reason to check glazing after a storm, because a cracked dome is easy to miss from the ground.

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If it's an emergency, call now. For non-urgent roof vent and skylight repair, send the form and we'll call you back.

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Where we work

Roof Vent and Skylight Repair across Bernalillo County

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Related

Roof Flashing Repair

Repairing the flashing at walls, chimneys, skylights and vent pipes on pitched and flat roofs in Albuquerque and the towns around it.

Roof Leak Repair

Stopping a roof leak in Albuquerque and the towns around it: catching the drip, finding the source and fixing the path the water took.

Storm Damage Claim Inspection

A roof inspection set up to be used with an insurance claim: dated, photographed and written in plain terms.

FAQ

Roof Vent and Skylight Repair FAQs

Is a skylight leak a glass problem?

Usually not. Most skylight leaks come from the flashing or the curb, and the roofer checks those before deciding anything about the glazing.

Can a split vent collar be sealed with caulk?

It is not a durable fix. A split collar lets water in again within a season, and the roofer replaces it instead.

Will a skylight repair void its warranty?

It can, depending on the manufacturer's terms. Ask the roofer to confirm which parts of the repair the warranty covers, in writing, before work is booked.

How long does a skylight repair take?

Most single-skylight repairs are done in one visit. A replacement unit may need to be ordered and fitted on a second visit.

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