Fiberglass Insulation in Kensington, MD

For the mid-century housing stock around Kensington — Rock Creek Hills ranches, Kensington Estates split levels, and the modest 1950s and 1960s colonials along Connecticut Avenue — fiberglass remains the most cost-effective insulation choice. BIBS for walls and blown loose-fill for attics deliver real R-value gains at the lowest installed cost of any system. We install fiberglass with the same care and detailing as our premium spray foam work — because a sloppy fiberglass install is the single most common reason walls underperform.

BIBS for Mid-Century Wall Retrofits

BIBS is a netted, dense-blown fiberglass system that completely fills wall cavities — including around wires, plumbing, and electrical boxes — without the gaps and voids that plague batt installations. For Kensington mid-century retrofit projects where a wall is being opened anyway (kitchen remodel, bathroom renovation, basement finish), BIBS gives you the closest performance to spray foam at a fraction of the cost. For new construction or substantial rebuilds outside the Historic District, BIBS in walls combined with blown attic fiberglass is a code-meeting, cost-effective alternative to a full spray foam package.

Blown Fiberglass for Attics

For attic top-up and full attic insulation in Kensington, blown fiberglass to R-49 is the lowest-cost path to a code-compliant attic. We pair every blown fiberglass attic with comprehensive air sealing first — top plates, can lights, plumbing penetrations, chases — because air leakage matters more than R-value alone. The combination delivers measurable reductions in cooling load, ice dam risk, and electric bills.

Cost-Effective for Rentals and Investor Properties

Kensington has a steady inventory of rental and investor-owned single-family homes, particularly in the unincorporated areas surrounding the Town. For these properties, fiberglass typically delivers the best return per dollar invested: lower upfront cost than spray foam or cellulose, fast installation, qualifying for federal IRS Section 25C tax credits and Pepco EmPOWER rebates, and immediate impact on tenant comfort and utility bills.