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Exterior Painting

Summer Exterior Painting Prep: How to Get Your Waukesha County Home Ready for a Fresh Look

Posted on June 30, 2025

As temperatures rise and the sun shines longer over southeastern Wisconsin, summer becomes the ideal time for homeowners to tackle exterior home improvement projects. One of the most impactful—and practical—ways to enhance your home’s appearance and protect it from the elements is with a professional exterior paint job.

But before the first drop of paint hits your siding, preparation is key. At CertaPro Painters® of Waukesha County, WI, we know that proper summer painting prep makes all the difference when it comes to quality and longevity. Whether you live in Brookfield, Pewaukee, Waukesha, or anywhere in the Lake Country region, our guide will walk you through the essential steps for getting your home paint-ready this season.

painted home in big bend
This neutral color made a statement on the exterior of this local home.

Why Summer Is Prime Time for Exterior Painting

Wisconsin’s weather can be unpredictable, but summer offers a relatively stable window for exterior work. Warm, dry days and lower humidity (compared to spring) create ideal conditions for paint to adhere and cure properly. However, the warmer weather also means homes may be more exposed to sun, mold, and dust—making proper prep even more important.


Step-by-Step Summer Painting Prep for Your Home

A beautiful, long-lasting exterior paint job starts well before the paint is opened. Here’s how to ensure your home is properly prepared for the best possible outcome:

1. Inspect and Assess Surfaces

Walk around your property and look for areas that show signs of deterioration. Common trouble spots include:

  • Peeling or flaking paint
  • Cracked or damaged siding
  • Mold or mildew stains, especially on shaded walls
  • Water stains or warping from past snow or rain

Noting these issues early helps plan for any needed repairs before painting begins.

2. Thorough Cleaning

Power washing is one of the most critical steps in surface preparation. It removes dirt, pollen, mold, and loose paint—all of which can interfere with adhesion.

In Waukesha County, where homes experience seasonal grime and debris buildup, we recommend professional-grade washing with the appropriate pressure settings to avoid surface damage.

3. Repair and Replace Damaged Areas

Before any paint can be applied, damaged wood, trim, or siding should be repaired or replaced. This not only ensures a smoother finish but also protects your home from future moisture intrusion. Pay particular attention to window frames, soffits, and eaves.

House Painters Mukwonago, WI

4. Scrape and Sand

Areas with peeling or chipping paint need to be scraped and sanded smooth. Proper sanding creates a consistent surface and helps the new paint bond more effectively.

5. Re-Caulk and Seal Gaps

A quality paint job is more than just color—it’s a layer of defense. Re-caulking around windows, doors, and trim helps seal gaps, improves energy efficiency, and prevents water from seeping behind your exterior materials.

6. Prime Where Needed

Priming bare wood, metal, or heavily weathered areas is a must. It creates a uniform surface, blocks stains, and helps the topcoat adhere. Skipping primer in problem areas often leads to premature peeling and discoloration.


Choosing the Right Products for the Wisconsin Climate

Waukesha County homeowners know the importance of using products that can stand up to all four seasons. That means selecting premium exterior paints designed for temperature swings, high UV exposure, snow, and rain. At CertaPro Painters®, we only use trusted brands known for durability and fade resistance.


The Advantage of Professional Prep

While some homeowners enjoy tackling prep on their own, exterior painting prep is time-intensive and laborious—and small mistakes can lead to big issues down the road. Our professional crews follow a proven system to ensure every surface is ready for flawless application, helping you avoid problems like blistering, bubbling, or early failure.


Ready to Refresh Your Home?

A summer exterior paint job offers more than just a boost in curb appeal. It’s a smart investment in the longevity, value, and protection of your property. And it all starts with careful, thorough preparation.

If you’re planning a refresh this summer in Waukesha County, reach out to the team at CertaPro Painters® for expert guidance, high-quality workmanship, and service you can trust. Get started with our painters!