Larsen Construction | Roof Inspectors & Roofing in Grand Haven, MI 49417

Our detailed roof inspections in Grand Haven specifically check for signs of underlayment compromise, which is a frequent issue due to our harsh winters. We look for subtle clues like interior moisture spots, granule loss in gutters, and areas where shingles may be curling—all potential indicators that the protective underlayment beneath is failing. Catching this early prevents water infiltration and structural damage to your home.

For algae stains, common in our humid lakeside climate, our inspection assesses the extent of the growth and the roof's overall condition. We determine if it's purely cosmetic or if the algae is trapping moisture and damaging shingles. We then provide a professional cleaning recommendation using safe, effective methods that remove the stains without harming your roofing materials, and can advise on algae-resistant shingles for future replacement.

While DIY solutions exist, incorrectly diagnosing or treating these local issues can cause more harm. For example, power washing algae can blast off protective granules, and patching underlayment without finding the source of moisture is temporary. Our inspection provides a complete assessment, ensuring the root cause is addressed with a lasting solution, protecting your investment and saving you money on repeated repairs.