Why roof cleaning matters in Hilmar
Central Valley's agricultural dust settles on roofs year-round, trapping moisture and creating conditions for biological growth. Winter tule fog adds persistent moisture that feeds moss and algae on north-facing roof planes. This growth lifts shingles, retains water, and accelerates granule loss. Regular cleaning prevents premature roof failure.
Our cleaning process
DeHart Roofing uses low-pressure soft washing — not power washing, which damages shingles. We apply an EPA-approved treatment that kills moss, algae, and lichen at the root. Debris is removed by hand. Gutters are cleared. The entire process is safe for landscaping and does not void your roof warranty.
How it works in Hilmar
Every project starts with a free inspection. We provide a written report with photos, then quote a flat-rate price before any work begins. No hourly billing. No surprise charges. DeHart Roofing is 10 min from Hilmar — our crews are local and responsive. Call (209) 667-7737.
About Hilmar
Hilmar is located in Merced County with a population of approximately 6,000. DeHart Roofing has served this community since 1975 — now backed by Econo Roofing and the Espindola family. We are the only quad-certified roofing contractor in the Central Valley.
Other services in Hilmar
DeHart Roofing also provides Roof Replacement, Roof Repair, Roof Inspection, Storm Damage Repair, Roof Maintenance, Gutters Flashing in Hilmar and across Merced County.
Roof Cleaning in other areas
We also provide roof cleaning in Ceres, Delhi, Denair, Empire, Hughson, Keyes, Modesto, Newman, Oakdale, Patterson, Riverbank, Salida, Turlock, Waterford and surrounding communities.