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About A Plus Insulation, LLC
A Plus Insulation, LLC serves Sammamish, WA as a specialized insulation contractor holding a 5.0-star rating across 31 customer reviews. The business delivers residential insulation solutions including spray foam, fiberglass, and rockwool installation paired with comprehensive air sealing services. Technicians serve homeowners throughout Sammamish and surrounding King County communities.
The contractor distinguishes itself through a product comparison approach that helps homeowners evaluate insulation materials before committing to a specific solution. Rather than pushing a single product, the team assesses existing conditions and recommends among spray foam, traditional fiberglass, mineral-based rockwool, or hybrid systems combining multiple materials. This consultative process reflects the background of trade professionals who understand that optimal thermal performance depends on matching material properties to each home's construction profile.
Reviewers frequently describe interactions with Sergey and Serge, highlighting same-day response availability and work completed ahead of schedule. One custom home builder noted the spray foam application was the cleanest installation in 25 years of observation, while a general contractor praised consistent quality across multiple projects over five years. Another client mentioned honoring an original price quote despite market cost increases, showcasing the contractor's commitment to straightforward pricing relationships.
What Customers Say
31 reviewers awarded perfect 5-star ratings, with named technicians Sergey and Serge appearing across multiple accounts of same-day response, on-schedule completion, andhonored original quotes despite cost increases.
Services
Spray Foam Insulation
Closed-cell and open-cell spray polyurethane foam applied to wall cavities, rim joists, and attic zones for air-impermeable thermal barrier.
Fiberglass Insulation
Traditional batt and loose-fill fiberglass insulation installed in standard wood-frame assemblies and recessed areas.
Rockwool Insulation
Mineral wool acoustic and fire-resistant insulation suited for exterior sheathing and interior sound-dampening applications.
Air Sealing
Comprehensive identification and sealing of thermal bypass pathways including penetrations, joint locations, and utility chases.
Hybrid Insulation Systems
Combined approaches layering spray foam with fiberglass or rockwool to optimize cost-performance across different building assemblies.
Insulation Assessment
On-site evaluation comparing material options, R-value requirements, and existing condition analysis for each home.