What Are The Biggest Exterior Maintenance Mistakes Homeowners Make?

29May 2025

Your home’s exterior should be doing more than looking good from the curb. It should also be acting as the first line of defense against weather, pests, and wear. Unfortunately, your home’s exterior can also be the forefront of damage, particularly when routine maintenance is neglected and small problems transform into larger ones. As a trusted roofing and siding contractor in South Jersey, TA Hughes has seen firsthand how common exterior maintenance mistakes can compromise the safety, appearance, and value of a home.

Here are some of the most common exterior maintenance mistakes homeowners make and how to avoid them.

Key Takeaways

  • Failing to clean gutters regularly can lead to roof damage, foundation issues, and basement flooding—especially during heavy rains or winter freezes.
  • Skipping annual roof inspections allows minor issues like loose shingles or damaged flashing to worsen, increasing the risk of costly repairs.
  • Mold, algae, and mildew buildup on siding or roofing not only affect your home’s appearance but can also deteriorate materials over time.
  • Cracked caulking and poor drainage near the foundation can lead to energy loss, water intrusion, and long-term structural damage.
  • Seasonal maintenance—such as checking siding, clearing gutters, and addressing drainage—helps protect your home year-round in South Jersey’s climate.

1. Making Gutter Maintenance Mistakes

Clogged or damaged gutters are a leading cause of water damage around the home. When gutters are full of leaves and debris, they can overflow and cause numerous issues. Your foundation might crack due to pooled water. Roof rot and leaks are common, as are ice dams in winter. Gutters that overflow can also cause damage to siding and fascia.

To avoid these issues, it’s recommended that you clean your gutters at least twice a year. If you have heavy tree coverage, consider leaf guards or clean them out every 3-4 months.

2. Putting Off Roof Inspections

Your roof is exposed to sun, wind, snow, and rain year-round. Delaying inspections or repairs allows small issues like lifted shingles or flashing damage to worsen unnoticed. Be sure to schedule a professional roof inspection annually or at least after major storms. It’s important to address even minor damage, as it can lead to costly repairs down the road.

3. Letting Mold, Algae, and Mildew Build Up

Those green and black stains and streaks on the roof and siding aren’t purely cosmetic. Mold, mildew, or algae growth can cause damage to shingles and health problems, especially if the mold spreads inside.

Power wash your siding when buildup appears, and trim back trees and shrubs to reduce excess shade and trapped moisture. For roofing, schedule professional cleanings rather than attempting DIY chemical treatments, which can damage shingles if not done correctly.

4. Neglecting Caulking and Seals

South Jersey is a place of fluctuating temperatures. That can cause caulking and seals around doors and windows to crack, dry out, and shrink, creating gaps. The gaps allow unwanted air exchange and water intrusion, driving up heating and cooling costs while increasing the risk of hidden rot or mold inside walls.

Since gaps can lead to issues, you should inspect caulking and seals at least once a year, particularly during seasonal shifts. Reapply exterior-grade caulking where needed and replace worn weatherstripping to keep your home airtight and watertight.

5. Failing to Address Drainage Issues

Downspouts that discharge too close to your foundation, poorly sloped yards, or consistent pooling after rain are signs of drainage issues. Over time, this excess moisture can undermine your foundation, cause soil erosion, and result in basement leaks or mold growth.

Extend downspouts 3–5 feet or more from your home and use splash blocks or underground drain piping to direct water safely away. Periodically inspect the grade around your house to ensure water flows away, not toward your foundation. If necessary, regrade the soil or install a French drain system.

6. Overlooking Siding Damage

During spring and fall, taking a walk around your home and look for damage to the siding. Cracks, warping, or loose siding pieces may seem minor, but even small openings can let in water and pests. Over time, this leads to rot, mold, and hidden insulation damage, making your home less energy-efficient and more vulnerable to the elements. Replace or repair broken panels promptly. If your siding is older, discolored, or deteriorating in multiple areas, consider upgrading to a more durable material like fiber cement, which offers long-term protection.

7. Skipping Seasonal Maintenance

South Jersey’s climate brings snow and freezing temperatures in winter, high humidity and storms in summer, and leaf buildup in fall. Each season can create unique stressors on your home’s exterior if left unchecked.

Stick to a seasonal maintenance checklist. Clean gutters in spring and fall to prevent clogs and ice dams. Inspect your roof and siding after major weather events. Seal gaps, check insulation, and ensure drainage systems are working before winter. Staying proactive keeps small problems from turning into expensive repairs.

Tackle Your Home’s Exterior Maintenance with TA Hughes

What are the biggest exterior maintenance mistakes you can make? Overlooking your gutters, roofing, and siding can all lead to huge issues. It’s important to conduct routine maintenance to avoid the common maintenance mistakes mentioned in this article and to preserve your home’s structural integrity. If you’re unsure where to begin, TA Hughes is here to help. With over 35 years of experience serving South Jersey homeowners, we offer inspections, repairs, and full exterior upgrades including roofing, siding, and gutter services.

Call TA Hughes today at 856-845-8505 or fill out our online contact form to schedule a consultation. Let us help you protect your investment and keep your home in top shape year-round.