House Washing in Seacoast, NH
Soft washing that safely lifts years of mold, mildew, and green algae off your siding without cracking or blasting it.
Soft washing that safely lifts years of mold, mildew, and green algae off your siding without cracking or blasting it.
Your siding takes a beating from New England weather. Salt air off the coast, shade from tall pines, and long damp winters leave vinyl, wood, and composite covered in green algae, black mildew streaks, and chalky buildup. Black Diamond's house washing lifts all of it, safely, and brings the original color back.
Siding should never be cleaned with a pressure washer on full power. High pressure forces water behind panels, etches wood, and voids many siding warranties. We use a soft wash system instead: low pressure paired with professional-grade detergents that break down mold and algae at the root. The result lasts far longer than a quick blast, because we kill the organic growth rather than just spraying it off the surface.
Vinyl, aluminum, cedar shingle, clapboard, stucco, Hardie board, and painted wood. We treat the whole exterior, including soffits, fascia, the outside of gutters, and trim, so the finished result looks uniform instead of leaving clean walls under dirty edges.
Connor and Gabe run every job themselves. No subcontractors show up in an unmarked truck, and nothing gets rushed. We are fully insured, and every quote is free and usually scheduled within the same week you call.
Done wrong, yes. That is why we soft wash siding at low pressure with detergents rather than blasting it. It is safer and the results last longer.
Because we treat the growth rather than just rinsing it, most homes stay clean for one to three years depending on shade and tree cover.
Yes. Siding, trim, soffits, fascia, and the exterior of gutters, so the finished look is even top to bottom.