American Home Insulation in Baltimore: Blown-In and Spray Foam for Historic Rowhouses and Modern Homes

American Home Insulation is a licensed insulation contractor serving Baltimore with blown-in cellulose, fiberglass, and spray foam installation for both new construction and retrofit work in older homes, where air sealing and thermal performance are complicated by foundation settlement and irregular wall cavities.

What American Home Insulation actually does

The company handles full-home insulation projects across Baltimore's mixed housing stock: century-old rowhouses in Federal Hill and Canton, post-war brick buildings in Hampden, and newer construction in developments like Harbor East. The work ranges from attic top-ups to complete wall cavity filling, basement rim-joist sealing, and crawlspace encapsulation. They are licensed by the Maryland Department of Labor and required to pull permits for spray foam application, which involves chemical handling and ventilation standards that DIY and unlicensed competitors often skip.

Services and pricing

American Home Insulation offers three primary insulation types. Blown-in cellulose (recycled newsprint treated for fire resistance) costs between $0.60 and $1.20 per square foot for attic work, depending on target R-value and accessibility; a 1,200-square-foot attic typically runs $800 to $1,400. Blown-in fiberglass is priced similarly but settles slightly over time in older homes with uneven joists. Spray foam (closed-cell and open-cell) runs $1.50 to $3.00 per square foot and is the only option for rim joists, band boards, and basement walls where air infiltration drives heating costs in Baltimore's humid climate; a 300-linear-foot basement perimeter can cost $1,500 to $3,000 depending on wall height and existing conditions.

The company charges $150 to $300 for a home energy assessment that identifies air leaks, missing insulation, and moisture risk areas; this fee is often credited toward a project if you proceed. Most jobs require a site visit to quote, since Baltimore's rowhouse basements vary wildly in condition and access. Confirm current pricing and availability by contacting the business directly, as material costs fluctuate.

How it compares to other Baltimore insulation contractors

American Home Insulation competes directly with regional chains like Owens Corning and local contractors such as Green Insulation Solutions. Owens Corning has higher brand visibility and financing offers through major retailers but often recommends full-wall spray foam, which is expensive and unnecessary for an attic top-up in a rowhouse. Green Insulation Solutions emphasizes eco-friendly cellulose and has strong reviews in older Baltimore neighborhoods but operates with a smaller crew and longer scheduling windows. American Home Insulation falls between the two: more specialized than the big box chains but less premium-positioned than dedicated green builders. Choose American Home if you need spray foam for basement air sealing combined with attic blown-in work; choose a local cellulose specialist if your project is attic-only and you prioritize environmental credentials; choose Owens Corning if you value fast scheduling and accept that financing may push you toward larger-scope work.

Who it suits and who it does not suit

American Home Insulation suits owners of 1920s to 1950s rowhouses planning to stay five years or longer and wanting to recover insulation costs through reduced heating and cooling bills. It also serves new construction projects in Baltimore County where spray foam at rim joists is required by code. It does not suit renters (no financial payoff), homeowners in well-insulated newer homes looking for marginal gains, or those with active moisture problems (walls must dry before sealing, or mold risk rises). If your basement has a history of flooding, address drainage and waterproofing before calling an insulation contractor.

What the first visit involves

A technician arrives with a thermal camera and blower door (a fan that pressurizes the home to reveal air leaks). They photograph problem areas, take measurements of joist spacing and wall access, and assess whether existing insulation is settled or damaged. The walk-through lasts 30 to 45 minutes. You receive a written estimate listing square footage, R-value target, material type, and labor cost separately; most contracts specify removal and disposal of old fiberglass or vermiculite if present. Permits for spray foam are filed by the contractor; you do not submit them yourself.

Hours, parking, and logistics

American Home Insulation operates Monday through Friday, 8 a.m. to 4 p.m., with occasional Saturday appointments available. Most Baltimore rowhouses have limited on-street parking; the crew arrives with a box truck and may park at a fire hydrant or meter with a temporary permit. Blown-in work takes one to two days depending on attic size; spray foam takes one to three days if multiple areas are sealed. The house is unoccupied during application for spray foam (ventilation and fume dispersal require 24 hours before re-entry). Confirm current hours and scheduling by phone, as seasonal demand shifts.

American Home Insulation deserves inclusion in a Baltimore guide because it addresses a specific local problem: rowhouse heating inefficiency driven by air leaks, not just missing insulation, and it applies the right tool to that problem rather than overselling spray foam to every customer.