Why Do I Have a Rodent Problem?

Rodents like rats and mice are clever, capable creatures. If there’s a way into your home and they want to come inside for any reason, they’ll find their way in. Most homes deal with a rodent problem at one time or another. There’s only one side to dealing with rodents: it’s a learning experience. 

Once you know why you have a rodent problem, you can figure out how to prevent them in the future. We can help with that. There are several steps to preventing future rodent infestations. First: identify the “what”: your current infestation. When you’ve confirmed you have a rodent problem, figure out the “why”: what made rodents want to get inside? Once you’ve figured out the why, the last step is the “how”: how were rodents able to get inside? After you’ve identified the “why” and “how,” you can make sure the “what” isn’t a problem again. Here’s where to start:

The What: do I have a rodent infestation?

If you already know in no uncertain terms that you have a rodent problem, then you can skip this step. If you suspect but you aren’t sure, however, you’ll have to start looking for the following signs. Rodents are quite sneaky, but even the most clever of rats and mice leave behind telltale signs of their presence. Signs like: 

  • Waste and droppings. If you have a large rodent problem, the rats and mice may leave behind dozens of small, tapered, dark brown pellets around your home or business every night. Look for these droppings where rodents typically live: in your basement, crawl space, or closets.
  • Grease marks. Most rodents have poor eyesight during the day. They move around homes by rubbing against baseboards and walls as guides. As they rub up against these surfaces, they’ll leave behind a grease stain over time. Look for these grease stains along the lower edge of walls in your basement. 
  • The sound of little paws. Rodents don’t sleep all day, every day. If they’re in your home, you’ll be able to hear them at some point. Listen for distinct scratching or scrabbling sound within walls and ceilings. Rodents are generally active at night, so you may hear them with more regularity late. 
  • Chew marks. Does your phone charger look worse for wear? Are there little bites taken out of boxes in the pantry? You might have rodents chewing on your possessions.

The Why: Why did rodents choose my home?

Rodents are attracted to any place that can provide their main needs: food, shelter, and water. Those are the things rodents want no matter the time of year. The most common of these draws are:

  • Accessible warmth. This is an especially huge draw during the fall and winter months. Most rodents are looking for a safe place to nest during the cold months. Keep a close eye on the places they use to get inside this winter. 
  • Food waste. Rodents will eat just about anything, including dairy, meat, vegetables, fruit, grain, fur, and trash. They’re usually drawn in by food debris near garbage cans, baseboards, and other out of the way places.
  • Plumbing leaks. We’ve already mentioned that rodents are drawn in by their three main needs. Food and shelter have been covered, but what about water? The most likely places for rodents to get water access are at plumbing leaks. They’ll drink from leaks in worn down pipes, loose joints, dripping faucets. They’re especially fond of exploiting the kinds of hidden leaks you don’t even realize you have. If you’ve noticed your water bill rising, you may have a hidden leak. Get in touch with plumbers to make sure your pipes aren’t drawing unwanted pests.
  • Clutter and debris. Rodents are shy. They’ll spend their time inside your home sneaking around and hiding. An especially cluttered or dirty house makes this easier for them. Pests can’t spread if they aren’t given the space and privacy to do so. Keep your space clean and organized to take away a rodent’s chance to build a secret nest.

The How: How did rodents get inside my property?

Rats and other rodents are capable of squeezing through holes or cracks that are less than an inch wide in diameter. This means that keeping them out is difficult and requires near-constant vigilance. By protecting their main entry points, you can help prevent infestations. These main entry points include:

  • Cracks in walls. This includes brick, cement, and stone exteriors. Small holes can be filled with caulk. Larger ones can be blocked with sealant.
  • Vents. If a rodent can get into a vent, it can use it to get into your home. You can prevent their entry without interrupting your vents output by covering vents with metal screening.
  • Chimneys. Not only are chimneys dark and out of the way, they’re warm too. Make sure your chimney is regularly cleaned and has a working grate or cap.
  • Window frames. Window frames have caulk and, in some cases, screens. Holes can develop and caulk can crumble, making entrance points.

Bringing it all together: How can I prevent future rodent problems?

Preventing future rodent problems depends on a few things. First, you need to figure out where they’re most likely to sneak in. Try to find these access points mentioned above around door and window frames, baseboard, utility lines, and other cracks and gaps. Seal and block these off wherever you can.

Second, try to make sure rodents couldn’t get the things they want inside your home even if they could get inside. Keep pantry foods in sealable, airtight plastic containers at all times. Keep garbage in sealable plastic bags and take it outside to the dumpster every night. Repair plumbing leaks and clean up spills immediately. Clean up after every meal and keep your kitchen, bathrooms, closets, and basements decluttered and clean. 

The last, best thing you can do to prevent future rodent problems is call Griffin Pest Solutions today. We’ll be able to tell you exactly how your rodents got into your home, remove them, and help make sure they can’t come back again.

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Everything You Should Know About Rodents Near You

Rodent peeking out through damage in a wooden log. Everything you should know about the rodents near you.

October 20 to 26 is the Professional Pest Management Alliance’s sixth annual Rodent Awareness Week. It couldn’t be happening at a more relevant time. According to a recent study, rodents are the greatest pest concern facing American homes today. Rats and mice invade 21 million homes every year, mostly in fall! Despite how common they are, however, rodent behavior isn’t very well understood. For instance, did you know that rodents are found in bathrooms twice as frequently as other rooms? The best way to prevent rodent infestations now and in the future is to understand them better.

We want to help! That’s why, in honor of Rodent Awareness Week, Griffin put together this primer on everything you should know about the rats and mice near you. This is what rodents want, how they get into your home, and how you can keep them out for good:

What do rodents want?

Rodents want shelter, warmth, food, and humidity–usually in that order. They enter homes in late summer and fall in order to escape the freezing temperatures of winter. Once inside, they’ll stick around if they can get their paws on food and water. Rats and mice look for warm, dark, narrow, humid shelters where they can find food and water.

How do rodents find homes to infest?

Rodents are very sensitive to temperature and pressure fluctuations. These sensitivities help rodents understand when the season is changing faster than we possibly could. As soon as they sense outdoor temperature chances, rodents start looking for the warmth and pressure differentials created by drafts. When they find drafts, they’ll follow the warmth inside.

In addition to temperature and pressure sensitivity, rodents also possess a highly-developed sense of smell. This sense of smell allows them to sniff out specific information about food, including the best way to get to it. Rodents literally “follow their noses” all the way inside your home. 

Rodent chewing on sunflower seeds near a home

How do rodents get into homes?

Rodents make their way inside by sneaking through tiny, draft-producing nooks and crannies located all around homes. Mice and rats are notorious for their ability to squeeze through tiny gaps. They tend to typically find these gaps in a few particularly likely places, including:

  • Door and window frames
  • Gaps around utility lines
  • Cracks in baseboarding and foundations
  • Breaches in vents or pipes
  • Damaged or rotting siding or shingles

Wait, why are they in my bathroom?

Rodents love moisture, warmth, and darkness. Bathrooms typically provide plenty of all three, particularly if they’re in your basement. Rats and mice live in bathrooms to soak up humidity and warmth and drink condensation. Occasionally, rodents may even swim up through damaged plumbing pipes to enter your home.

rodent climbing on an electrical wire

Why are they a problem?

Rodents are surprisingly dangerous in homes for several reasons. Here are the main reasons you never want rats or mice to establish themselves in your home:

  • Fire Damage: Did you know that 25% of the house fires attributed to “unknown causes” were probably caused by rodents? Rats and mice chew through electrical wiring, which can generate sparks and start fires.
  • Health Concerns: Rat and mice feces, saliva, blood, and fur transmit several dangerous diseases. Rodents may also carry diseased fleas or other parasites.
  • Food Damage: Rats and mice in your home will make a beeline for any pantry food they can find. The damage they inflict can get surprisingly expensive surprisingly quickly!
  • Wood, Fabric, and Paper Damage: Rodents constantly gnaw on any soft materials they can find, tearing them up in the process. Rodent infestations end up damaging wood, fabric, and paper products in your home.

How can I tell if I have a rodent problem?

Unfortunately, if you happen mice or rat inside your home, chances are they aren’t alone. Even if you don’t see your rodent, however, there are a few ways to figure out if they’re hiding near you. Look for the following signs:

  • ¼ to ½ inch long black droppings that look pellet or spindle-shaped
  • Damaged electrical cables or wiring
  • Gnaw marks on cardboard boxes, drapes, upholstery, wooden furniture, or even carpet
  • Damaged food packaging
  • Collections of dirty, soft material like paper, insulation, cardboard, or plastic
  • Dirty or greasy markings along the lower parts of walls

How can I keep them out of my home?

Start by cutting off their access to your home. Repair weaknesses you find around the usual sites up above using caulk, weatherproofing, spackle, or another sealant. If an opening is big enough to see, it’s probably big enough for rodents to use. Pay particular attention to drafty or humid parts of your home such as basements and bathrooms.

When you’re finished rodent-proofing access points, make the rest of your home as inhospitable to rats and mice. Keep your the floor of your basement, crawl spaces, pantries, and attics as clean and clear as possible. Elevate all storage materials, especially cardboard boxes and linen garment bags. Store your pantry food in airtight hard plastic containers. You should even keep your lawn as clear as possible. The harder it is for rodents to hide near you, the greater the distance they’ll keep.

 

Once rodents have established themselves inside your home, they can be difficult to remove without serious help. Luckily, you have serious help–you have Griffin Pest Solutions. 

Our experts can find rodent infestations, remove them, and make sure they can’t get in again. If you become a little too aware of rodents this Rodent Awareness Week, give us a call anytime. We’ve yet to meet a rodent infestation we couldn’t beat.

What Do Rodents Want This Fall?

Rodent near a pumpkin. What do rodents want this fall?

Autumn is a lovely time of year. The overbearing heat of the Midwest summer leaves us alone as the temperatures start to shift. Leaves change color, pumpkin spice becomes the flavor du jour, and everyone starts wearing socks again. In the middle of these positive changes comes one not-so-positive change, however. Rodents start finding their way inside homes and businesses. 

Just like you pull sweaters out of storage as the temps turn, rodents start looking for similar, reliable warmth. If you’re not careful, they’ll find it in your home. This is what attracts rodents to your home this fall, how they get inside, and how to keep them out.

What attracts rodents in fall?

The simplest answer is food and warmth. Cooling temperatures trigger a response in rodents and mice to seek out warmth and shelter. Rodents are extremely sensitive to temperature and pressure fluctuations, so they may sense the changing season before you do! 

When rodents sense cooling air temperatures, they also start fattening themselves up. They’ll seek out high sugar and fat foods, and in larger quantities than usual. Both rats and mice have an exceptional sense of smell. They can smell all the food they want while its inside your home–often while it’s still in its packaging! If they smell the food they want in your home, they’ll try to get it. Fall is a time of survival for rodents. Any place that provides them the things they need to last the winter is a target.

How do rodents get inside during fall?

Rodents are clever creatures. They’re capable of fitting into breaches as small as a quarter. If rodents get into your home, they found one of these breaches. The pests commonly enter homes via crumbling foundation, broken screens, vents, attic insulation, window and door frames, and pipes. You should see all areas that you need to monitor regularly. 

Monitoring entry points doesn’t take much work. We recommend simply conducting a weekly or bi-weekly inspection of your home. Check for any damage such as torn screens, gaps between utility lines, or torn insulation. By minimizing potential entry points, you’ll significantly you significantly lessen your chance of any infestation, including rodents.

How can I keep them out?

Not letting them in in the first place is the first step. After that, you want to be cognizant of the things that draw pests like rodents. They’re not just looking for shelter, they’re looking for food and water as well. Clean and well-maintained garbage cans are less likely to draw pests than dirty ones filled with food waste. 

Fix dripping or leaking pipes immediately so they don’t have a chance to create pest-adored standing water. Maintain your landscape to avoid giving rodents hiding places they can use to approach your home. If they have cover to hide in close to the perimeter of your home, they’re more likely to take the jump indoors. 

 

If you suspect you have a rat or rodent problem, get in touch with Griffin Pest Solutions immediately. Our integrated approach to pest management will draw unwelcome visitors out and keep them from returning. That way you can get back to enjoying the fall properly: in flannel, pumpkin spice latte in hand.

How Did I Get Mice?

Mouse peeking out of a small mouse hole in a home's wall next to an electric outlet

Mice can squeeze through any gap that’s at least ¼ of an inch wide–about the size of a dime! They find these gaps by following the smell of food or feeling of air pressure differentials created by drafts. Mice are very adept climbers, so they can reach gaps anywhere around your home.

After using tiny gaps to sneak inside, mice can reproduce all year as long as they have food. Mice had to sneak in originally, but many of the mice you find in your home were likely born there. The best way to keep mice out of your home for good is to seal off their access points. These are the four most common ways mice get inside homes and how you can mouseproof them.

Frames

Believe it or not, door and window frames are probably the access points mice use most. Wooden frames naturally warp and bend over time, creating small gaps between the window or door and the frame. Likewise, the weatherproofing wears down or unpeals. Eventually, tiny gaps appear between the door or window and frame or the walls and the frame. These gaps may not be large enough to see, but they’re large enough for mice to use.

Conduct a quick maintenance inspection on each of your door and window frames every spring and fall. Replace any weatherproofing that looks worn down or damaged. Check to make sure the doors and windows sit in the frame properly and don’t feel too tense or loose. Patch up any cracks or gaps you find around the wood itself using caulk. If you can feel a draft, it means your frame isn’t as secure as it should be. Find the gap sucking hot air out and patch it up.

Utility Lines

Utility lines are the pipes, wires, and vents bringing gas, electricity, heat, and plumbing into your home. All homes need to have small gaps in their walls to allow these utility lines inside. The problem is, mice can find these gaps by following the utility lines. They’ll sense heat given off by ventilation or hot water and follow that heat through the wall. Gaps between walls and utility lines may expand over time, making the gap an even more attractive access point.

Starting outside, walk the perimeter of your home looking for each area where a utility line enters the building. Look near your HVAC, your power meter, your sump pump, your light fixtures, and your outdoor faucets. If you see a visible gap between these pipes or wires and the wall, patch that gap with caulk. When you’re done outside, go inside and do the same thing. Replace these caulk barriers around once a season to make sure they don’t wear away.

A small gap between a basement's wall and its concrete floor. Mice often sneak through the space gaps like these create.

Subterranean Gaps

Over time, cracks and gaps may open up around the foundation, siding, or the baseboarding of your home. These could occur because of weather damage, wood rot, or natural wear-and-tear. However they happen, small gaps and cracks around your home’s foundation start to create drafts. These kinds of drafts are particularly common in unfinished basements. Mice are very sensitive to temperature and pressure differentials. When they sense the hot air shooting out of gaps in a home, they’ll follow it inside.

Start in your basement or lowest level this time. Look for cracks and gaps in the floor and ceiling. Pay particular attention to corners, windows, baseboard, and frames. Seal any gaps you can find with silicone caulk or steel wool. Remember: if a crack or gap is big enough to see, it’s probably big enough for mice to use. Just like before, when you’re done inside you should look for cracks and gaps outside, too.

Roofing

Mice are surprisingly adept climbers. Most mice are capable of climbing most homes without much difficulty by finding downspouts, wires, or other holds. Mice can also access rooftops by climbing up nearby trees or bushes and crawling along overhanging branches. Unfortunately, the fact that mice can climb so well means no access point is safe. Mice don’t just sneak inside from the ground; they could be sneaking in from the roof, too!

Even worse, roofs tend to have all kinds of neglected access points. Mice can exploit rotting shingles, ventilation outlets that aren’t covered, chimneys, cracked gutters, and more. If you have roofing damage, mice will likely use that damage as a means of entering your home. You should have your roof inspected at least once every few years. Check for cracked shingles, rot, and other possible damage. You should also always block your vents and chimneys with mesh.

 

The best way to prevent mouse infestations is to continuously monitor and block off access points. Check each of the most vulnerable areas every spring and fall to make sure you’re still covered. If you stay on top of your access point maintenance, you’ll keep mice from infesting your home for good.

If you already have a mouse infestation inside your home, even blocking off access points won’t help right away. Instead, you’ll have to call the pros at Griffin Pest Solutions. We can drive out mice and make sure they can’t get in again. Mouse season is starting right now, so if you think you have a problem, get in touch right away! We’ll help make sure you have a rodent-free fall. 

How to Have a Rodent-free New Year

If you’ve ever had a rodent in your home, you know how persistent they can be. You lay out traps, seal off cracks, and even call in pros, but year after year, there they are. It’s easy to get discouraged or even apathetic about the whole process. But not this year. This year things are going to go differently. This year you stop the rodents. We’re here to help.

Sound ambitious? It’s easier than you think! Just follow these four steps, and you’ll be well on your way to creating a rodent-proof environment. Don’t give up! Getting a jump start on this will give you the momentum you need to complete your other resolutions. It all starts here!  

Replace Weatherstripping

replace weatherstripping to keep pests outWeatherstripping is the long, rubber material that makes up the threshold between doors and windows and their frames. This stripping makes an airtight seal between the door or window and the outside air. Without it, outdoor air would slip through the cracks and enter your home. Over time, weatherstripping can wear down. Damaged weatherstripping may not keep outdoor air out, or it may peel away from the threshold all together. Either way, it provides a perfect opportunity for rats and mice.

When outdoor air seeps in, the pressure difference between that air and indoor air creates a vacuum that sucks heat out. Rodents outside feel this heat escaping and follow it to its source: the damaged weatherstripping. Rats and mice can easily bite through or sneak under weatherstripping that’s already been damaged. Examine all the weatherstripping in your house and replace any that looks worn. You can buy inexpensive weatherstripping materials at most hardware stores.

Seal Utility Lines

Seal utility lines to keep pests outMice only need an opening the size of a dime to wriggle their way into your home. Some of the most common openings they find are around your utility lines. Gas, water, and electrical appliances have pipes, vents, and cords that need to enter your home from the outside. Rodents often follow the smell of gas or water along a pipe. Eventually, they’ll reach the opening where that pipe enters the home.

Cutting off this avenue of infiltration is simple. First, walk the perimeter of your home looking for any utility line access points. When you find them, check to see if there’s an opening rodents could use to enter your home. Remember: it can be a small opening. Use caulk or steel wool to seal this opening as snuggly as you can from the outside. To be doubly sure, go inside and repeat the same process. Utility lines are the #2 way rodents get into homes after windows, so don’t neglect this simple chore.

Clean Yard

Keep the lawn clean to keep pests outBefore rodents are attracted to your home, they’re attracted to your yard. All kinds of things bring them there: food, moisture, shelter, even random debris. Food can mean various things in this context. It could be pet treats, vegetables, fruits, or even bird seed. Moisture could come from bird baths and water features, or from sinkholes and puddles. Shelter is anything they can hide in or under to get away from predators. Random debris can be used for nesting or cover.

Keep your lawn mowed short, and prevent weeds from growing in it. If you have a garden, fence it off and protect it from pests. Be careful not to overwater your plants or grass, and don’t let water sit for hours. Keep your yard uncluttered and clear by picking up fallen seeds, branches, leaves, or fruits. Trim hedges and brush to a short, uniform length. It’s less obvious than the other tips, but yard care is an important way to keep rodents out.

Take Out the Trash

Take out the trash frequently to keep pests outRats and mice have truly incredible noses. Not only can they smell much better than we can, they can discern specific information based on smells. Information like where food is, how much there is, and how easy it would be to take. While rodents may come around looking for shelter, they’re probably interested in your home specifically because of food. Nothing attracts pests, including rats and mice, quite like the pungent aroma of garbage. It’s like an all-you-can-eat buffet.

This is another anti-pest tip that’s surprisingly easy to implement. First: line all your garbage and recycling cans with plastic bags. Make sure all the garbage you put in your cans actually ends up in these bags. Next, take the bags out of the cans and to the outdoor dumpster every night before bed. Seal the bags tightly before you throw them out. Keeping your garbage outdoors and away from your home will remove the main thing attracting pests to your home.

 

If these tips sound simple, it’s because they are. If they sound too good to be true, just give them a try! Even if you don’t solve your rodent problem overnight, you’ll be on the right track to a rodent-free new year.

If you need some help making that final push and driving the last of the rodents out of your home, just give Griffin a call. Our rodent experts have been fighting the furry menace since 1929, and they haven’t beat us yet. Have a great, pest-free* new year!