Cellulose Insulation in Silver Spring, MD

Cellulose is the right answer for many Silver Spring bungalows and historic homes. The neighborhoods of Woodside, Seven Oaks, the National Park Seminary district, and parts of Forest Glen are anchored by 1920s and 30s bungalows, foursquares, and craftsman houses with plaster-on-wood-lath walls and no original wall insulation. Dense-pack cellulose reaches every cavity void without lifting plaster, surrounds wires and pipes the way batts cannot, and delivers full thermal coverage with no demolition. The fiber is made from high recycled-content paper treated with borate compounds for fire resistance and pest deterrence — historically appropriate, environmentally responsible, and effective.

Dense-Pack for Plaster-Walled Bungalows

Before any cellulose goes into the walls of an older Silver Spring bungalow, our crews confirm there is no active knob-and-tube wiring in the cavities — a safety check we perform on every pre-1940 home. We then drill small access holes from the exterior siding side, fill the cavity to 3.5 pcf, and patch cleanly. The added density yields measurable comfort gains: cold-spot complaints disappear, drafts at outlets and switches stop, and rooms hold temperature more evenly through Maryland's humid summers and cold winters. A typical 1,500 sq ft Woodside bungalow wall retrofit completes in 1 to 2 days with photo documentation and clean restoration.

Attic Air Sealing and Montgomery County Documentation

Before any cellulose goes into a Silver Spring attic, our crews seal top plates, plumbing chases, recessed lights, and the attic hatch with foam and gasketing, then install soffit baffles to maintain ventilation pathways. Cellulose is blown to a verified 14 to 16 inches for R-49, with depth markers staked for inspection. Recessed lights receive rated covers or safe clearances, bath fans are confirmed to vent outdoors, and the attic hatch is insulated and weatherstripped. We hold Maryland (MHIC) licensing, pull Montgomery County DPS permits where required, and provide all the documentation needed for Pepco EmPOWER rebates and federal IRS Section 25C tax credits at completion.