Cooler Weather Offers a Chance to Clean Up Summer's Grime

There is a noticeable change in the air this time of year. After months of sticky summer humidity, we're finally enjoying cooler mornings, crisp afternoons and the kind of weather that makes working outside a pleasure rather than a chore.

While the humidity may have moved on, it often leaves a few reminders of what moisture can do to a home. Take a walk around your house and look closely at your siding, porch railings, steps, and shaded areas. You might notice green patches, dark streaks, or a dingy film that wasn't there in the spring. Months of warm, damp weather create ideal conditions for algae, mildew and other organic growth to take hold, particularly on the north side of a house or anywhere that doesn't get much direct sunlight.

Since we aren't quite into the thick of leaf cleanup season yet, and it's not cold enough to put away the outdoor tools, mid-October is a good time to tackle some of the grime that's been building up around your home's exterior.

Start with the siding.

Green algae and other discoloration can develop in areas that stay damp, particularly behind shrubs, beneath overhangs and along shaded walls.

Fortunately, you don't necessarily need to drag out the pressure washer to address it. Products like Wet & Forget and other exterior cleaning solutions are designed to treat organic growth on siding, decks, and other outdoor surfaces. Some are sprayed on and left to work gradually with the help of rain and weather. They generally won’t damage your landscaping or plants, although I would take care around vegetable gardens. 

Just remember that these aren't instant fixes. Depending on the product and the amount of buildup, it can take weeks or even months to see the full results. Always follow the manufacturer's instructions, including temperature requirements and precautions for pets and vegetation.

Don't overlook porches and railings.

Porches are another place where summer moisture tends to linger. White railings, columns and trim can develop dark spots or green discoloration, especially where there's limited airflow.

A gentle cleaning can make a noticeable difference. Before reaching for a strong chemical or pressure washer, check what cleaning methods are recommended for your particular surface. Painted wood, composite materials, and vinyl don't all respond the same way.

Be careful with pressure washing too. A lot of pressure can damage paint, force water behind siding, or splinter wood. More pressure isn't necessarily better.

Pay attention to what's underfoot.

Algae and other organic growth aren't just unsightly. They can make steps, walkways, and decks surprisingly slippery, particularly after rain.

Check shaded entryways, concrete steps and areas around downspouts where water tends to collect. These are worth cleaning before fallen leaves and colder temperatures make footing even more unpredictable.

If you're using a cleaning solution, make sure it's approved for the surface and follow any instructions about rinsing or keeping people and pets off the treated area.

Look for the reason it's growing.

Here's something I always tell homeowners: Cleaning is one thing, but understanding why a problem keeps coming back is just as important.

If the same section of siding turns green every year, take a closer look. Are shrubs growing too close to the house? Is a gutter overflowing? Does a downspout empty right next to the foundation? Is there an area that never gets enough sunlight or airflow to dry out?

Sometimes a little pruning, improved drainage, or a simple gutter repair can make a bigger difference than another round of cleaning.

And remember, not every dark stain is mold. Algae, mildew, dirt, and other buildup can look similar. If you suspect significant mold growth or moisture damage inside the home, that's a different issue that deserves professional attention.

Take advantage of the weather while you can.

One of the nice things about October in Connecticut is that we often get a stretch of beautiful, comfortable days before winter settles in. They're perfect for smaller outdoor projects that are easy to put off during the heat of summer.

Choose a day that meets your cleaning product's temperature and weather requirements, and pay attention to the forecast. Some treatments need several hours without rain, while others shouldn't be applied when freezing temperatures are expected.

A little attention to what summer left behind can help keep your home looking its best and give you one less thing to worry about when spring rolls around.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions for Bob to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit odonnellbros.com. Advice is for guidance only.

Summer Humidity Problems Nobody Talks About

Every summer, homeowners start noticing strange things around the house: foggy windows, musty basement smells, peeling paint, damp air vents, or condensation showing up where it shouldn’t. It’s not your imagination. Your house is sweating.

Connecticut summers create the perfect conditions for humidity problems, especially in basements. When warm, moisture-filled air comes into contact with cooler surfaces, condensation forms on windows, pipes, vents, walls, and floors. Left unchecked, that excess moisture can lead to mold, water damage, poor air quality, and expensive repairs over time.

Basements are often the biggest trouble spot because they naturally stay cooler than the upper floors of a home. During humid weather, outdoor air sneaks inside through doors, windows, foundation gaps, and poorly sealed areas. Once that humid air hits cool basement surfaces, moisture forms quickly.

One of the biggest misconceptions is that basements simply “feel damp because they’re basements.” In reality, excessive moisture should not be ignored. Over time, high humidity levels can contribute to mold growth, warped materials, peeling paint, mildew, and damage to stored belongings.

Another common mistake homeowners make is opening basement windows during extremely humid weather in an attempt to “air things out.” Ironically, this often makes the problem worse by allowing even more moisture-heavy air inside.

In many homes, a properly sized dehumidifier can make a dramatic difference. Ideally, homeowners want indoor humidity levels to stay somewhere around 40–50 percent during the summer months. Anything consistently higher can start causing issues throughout the home.

Air conditioning also plays a major role in humidity control. Many people think of air conditioners as simply cooling systems, but they also remove moisture from the air. If a home feels cool but still sticky or damp, it may indicate that the system is oversized, not running properly, or struggling to remove humidity effectively.

Sometimes homeowners unknowingly create humidity issues themselves through simple daily habits. Long hot showers without proper ventilation, drying laundry indoors, poor bathroom fan use, and cooking without exhaust ventilation can all add moisture into the air.

Bathroom exhaust fans are another overlooked issue. Many older homes either have undersized fans or fans that simply vent into attics instead of fully outside the home, which can create an entirely different set of moisture problems over time.

Condensation around air conditioning vents is another frequent summer complaint. In many cases, this happens when humid air meets very cold ductwork or vents. While some minor condensation can be normal during extremely humid weather, excessive dripping or staining may indicate insulation issues around ductwork or poor airflow.

Homeowners should also pay attention to signs of exterior moisture intrusion during summer storms. Clogged gutters, poor grading, and improperly directed downspouts can allow water to collect around foundations, increasing humidity problems inside the home.

The good news is that many humidity-related problems are manageable once identified early. Proper ventilation, dehumidification, drainage improvements, and regular HVAC maintenance can go a long way toward keeping homes more comfortable and preventing bigger issues down the road.

Because while nobody wants their house to feel like a Florida greenhouse in July, your basement also shouldn’t smell like a forgotten beach towel by mid-August.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions for Bob to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit http://www.odonnellbros.com. Advice is for guidance only.

How to Keep Your Basement Dry During the Winter Thaw

We’ve had weeks of below-zero temperatures and a solid foot of snow parked in our yards. Now the forecast is shifting into the 30s and 40s, and a whole lot of melting is happening. While that feels like progress, it’s actually one of the riskiest times of year for basement moisture problems.

Why? Because all that snow has to go somewhere, and if your home isn’t ready, it often heads straight for your foundation. So here’s how to stay ahead of snowmelt season and keep your basement dry while winter makes its messy exit.

Start with the Foundation

Your foundation is ground zero when the snow starts to melt. Take a walk around your home and look closely for cracks, gaps, or areas where water could sneak in. Even hairline cracks can become entry points once meltwater builds up.

Seal visible cracks with a quality waterproof masonry sealant, and pay attention to where the ground meets your foundation. If the soil has settled and now slopes toward the house, melting snow will follow that path right inside. Long-term, regrading may be needed, but even small fixes now can make a difference.

Clear Snow Away, Especially Now

Snow removal isn’t just about shoveling walkways. As temperatures rise, snow piled along the foundation, bulkhead, or basement windows becomes a slow-release water source.

Pull snow away from:

• Foundation walls

• Basement windows and window wells

• Bulkheads and exterior stairwells

This gives meltwater room to disperse instead of pooling against your home. Think of it as redirecting traffic before there’s a pileup.

Make Sure Gutters Can Handle the Thaw

When snow melts from the roof, gutters and downspouts become critical. If they’re clogged with leaves, ice, or debris, water will overflow and dump straight at your foundation, exactly where you don’t want it.

Check that:

• Gutters are clear and securely attached

• Downspouts are open and directing water several feet away from the house

• Ice hasn’t pulled gutters loose or changed their pitch

This is one of the most common causes of basement water during a thaw and one of the easiest to prevent.

Don’t Ignore Window Wells

Basement window wells love to collect snow, ice, and debris. When everything melts at once, those wells can fill up like a bathtub and leak straight through window frames.

Clear them out now and make sure the drains at the bottom are open and functioning. If you’ve had issues in the past, window well covers can help keep snow and water out altogether.

Prepare from the Inside, Too

If moisture does get in, you want to limit the damage. Interior waterproof coatings on basement walls can help reduce seepage, and a dehumidifier can keep humidity levels under control during the thaw, when damp air is common.

Condensation plus cold surfaces equals moisture, so controlling humidity helps prevent mold and musty smells from taking hold.

Test Your Sump Pump Before You Need It

Snowmelt can overwhelm a sump pump fast. Now is the time to test it, not during the first warm rain on top of melting snow.

Pour water into the sump pit to confirm it turns on, pumps efficiently, and drains properly outside. Clear any debris, and make sure the discharge pipe isn’t blocked by snow or ice.

If your sump pump fails during a thaw, water can rise quickly and cleanup is never fun.

A winter thaw might feel like relief, but it’s also when many homeowners discover problems they didn’t know they had. A little attention now can save you from water damage, mold, and expensive repairs later.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. For remodeling or home improvement needs, call (860) 589-5155 or visit http://www.odonnellbros.com. Advice is for guidance only.