Before & After Photos

The Cowleys nuisance wildlife crew was sent to this home in Atlantic Highlands, NJ to handle the exclusion work following a wildlife infestation in the attic. The wildlife access points were around the PVC roof vents caused by deterioration of the surrounding vent boots. We arrived to do the repair work to fix the problem.

Vent boots encase the PVC vent pipes that stick out of your roof. When doing repairs around vent pipe flashing after wildlife entry, homeowners sometimes ask us why their home even has these mysterious vent pipes since they seem like nothing but trouble.

These pipes are part of your plumbing system, or what plumbers call you drain-waste-vent (DWV) system, At the risk of oversimplification, this system has three major parts. The “D” stands for drainpipes, the pipes that collect water from sinks, showers, tubs, and your appliances like your dishwasher and washing machine. The “W” stands for waste pipes, the pipes that remove water and waste from your toilets. All of these pipes connect to the municipality’s sewer line or your septic system. The “V” stands for the vent pipes that stick out of your roof. Building codes require at least one of them.

Vent pipes have two important functions for your plumbing system. First, they equalize pressure in the pipes by allowing air to enter so that the liquid flows freely. (Just think what happens if you put your thumb over a straw immediately after you suck in liquid or if you try to pour liquid out of a can without a second air hole. Without air in the system, water doesn’t flow well.) Second, these vent pipes remove or exhaust sewer gases that are produced and collected from the decomposition of wastes in the sewage system. Sewer gas contains a number of nasty gases including hydrogen sulfide and ammonia that are flammable, poisonous, and just plain stink. These vents are put high up on your roof so that the sewer gas is not pulled back into the home through the windows or attic. 

So, if all that’s too much information, the short answer is that you need those vent pipes sticking out of your roof for your plumbing system to work. Unfortunately, even though these vent pipes are essential, they are also rank up there as one of the most common causes of roof leaks. In addition, the PVC vent areas are vulnerable to wildlife like raccoons that can tear through the vent flashing to gain access to the attic. 

To help prevent leaks and give some added protection against wildlife entry, vent boots seal the area where the pipes come out. Unfortunately, vent boots often don’t last the life of the roof. Because they’re usually made out of rubber, over time, the sun and the outdoor elements will cause them to rot. With this home, the vent boots had deteriorated to the point where they were gone completely, leaving entry points for water intrusions and for pests and wildlife to gain access inside the home.

These homeowners in Atlantic Highlands, NJ, were having problems with squirrels “squirreling” their way into their attic. They were tired of dealing with these periodic squirrel infestations into their home, and contacted Cowleys in the hopes of finding a long-term solution. We had the perfect answer for them! 

Our contractor division installed CritterProof, a critter protection product manufactured by Leaf Supreme, a leading designer of gutter protection systems. CritterProof is specifically designed to cover the fascia gap and exclude various wildlife that often makes their way onto the roof and into the attic. The most common “attic invaders” that we see time and time again here in New Jersey are squirrels, raccoons, and bats. Mice also find their way into the attic, but usually they first enter the home through the basement or crawl space. 

CritterProof is a protective system that stops wildlife from chewing and clawing their way through the delicate fascia boards to gain access to the soffit area and, ultimately, where the attic. For wildlife, attics are the perfect refuge to escape the harsh outdoor elements and they make for a wonderful nesting area to care for their young. After all, attics are warm, quiet, private, and free from the preying eyes of predators.  

A home’s soffit/fascia area is one of the more common routes we see for wildlife to gain entry. CritterProof’s unique adjustable design provides custom coverage of the fascia gap while still maintaining critical attic ventilation. CritterProof is available in black, white, and other colors by special order.

Recently Middletown Township, NJ homeowners contacted Cowleys after noticing some debris coming out from the drop ceiling in their finished basement. Upon arrival, I immediately went into the basement to inspect. I popped out the tile and immediately noticed that something had been chewing on the tile itself. I had a strong suspicion that this homeowner had a mouse infestation. After entering the home through gaps and cracks around the foundation, they will make their way through wall voids or travel on top of drop ceilings to forage for food and water. We see a substantial uptick of mouse infestations when temperatures drop and mice attempt to gain access inside our homes to overwinter to escape the harsh outdoor elements and forage for food and water. 

Mice, as all rodents, have incisor teeth that constantly grow. To keep them at a reasonable length, they will gnaw on almost anything they can get their teeth around as well as grind their teeth as a way of slowing their growth. While inspecting the sill plate, I found the tell-tale sign of mice — the rice-like droppings they leave behind.  Adjacent to this area, I noticed several wires going to the outside with a noticeable gap around them, allowing mice to enter. Gaps around pipes and wires entering the home are one of the more common entry points for rodents.  

I vacuumed up the toxic droppings and then placed a rodent bait station on the sill plate. Mice will follow the same trail, so placing bait stations in their pathway is highly effective to reduce their populations. I temporarily sealed the gap around the wires using chew-proof copper mesh. The homeowners informed me that they would have their contractor permanently seal the gap with stucco to prevent a re-infestation. With mouse infestations, to permanently resolve the issue and prevent re-infestations, it is essential to locate and seal all of the potential entry points around the home.

This homeowner from Spring Lake, NJ had starlings roosting in her dryer vent. Starlings are one of the more common nuisance birds that we regularly deal with, right up there with pigeons, sparrows, seagulls, and Canada geese. While all of these birds are a nuisance, sparrows are one of the most destructive. They can form exceptionally large flocks that can number in the thousands, ravishing crops and spreading disease with their toxic droppings containing many dangerous pathogens. They also compete for nesting cavities, ousting and killing our original native birds, and destroying their eggs and young.

For homeowners, it is quite common to find birds building nests inside dryer vents because of the heat. Unfortunately, with the nesting materials building up inside the vent, it is a serious fire hazard. Before these birds could get established in the spring, we wanted to nip the problem in the bud by excluding them and making sure that they would be sealed out for good.

We opted to go with The Defender vent cover for the dryer vent. Constructed of thick-gauge zinc-coated powder-coated steel, these USA-made covers are built to last. Also, its vertical bars are tailor-made for dryers because they minimize lint buildup (another major dryer fire hazard) while, at the same time, keeping out critters, especially birds and squirrels. From our experience, these dryer vents require cleaning far less often than with other vent covers that tend to accumulate lint because of their design. we also cleaned and sanitized the dryer duct before sealing.

When this job was completed, there was no indication that there once was a bird infestation. This homeowner was left with an aesthetically pleasing vent cover that's will last indefinitely, but is still a snap to remove for periodic vent cleaning.

Recently, we went out on a service call for a resident in Spring Lake, NJ who was having a problem with a raccoon in his attic. How'd he know it was a raccoon? As his son was cleaning the attic one evening he spotted the little fella running around!

As we inspected the rooftop we spotted raccoon hair and paw prints near an attic vent cover. This was how the raccoons were able to enter the attic.

We placed several baited traps near the main access point, installed an attic vent cover, and then attached a one-way to the attic vent cover. The vent cover prevents raccoon and other pesky, nuisance wildlife from entering your home through the roof vents. They are constructed out of heavy-duty 18 Gauge galvanized metal mesh that the wildlife are unable to chew through. 

The one-way is a device that allows the raccoons to safely leave the attic and prevents them from getting back in. By installing a vent cover over every single attic and static vent on the roof and placing a one-way over the main access point we are forcing the raccoon to exit through the one-way and into the baited traps. Once the raccoon is safely captured, we'll relocate it to a new, humane location and then sanitize the attic area.