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About Advanced Efficiency Worx
Advanced Efficiency Worx is an insulation contractor based in York, Pennsylvania, serving residential and commercial customers throughout the region. The company holds a 4.4-star rating from 34 customer reviews, reflecting consistent service quality in home energy assessments and weatherization projects. Their offerings include insulation installation, air sealing, and HVAC upgrades, with services endorsed by major Pennsylvania utilities including PPL, UGI, and First Energy.
What distinguishes this contractor is their whole-house approach to energy efficiency rather than treating individual systems in isolation. They begin every project with a comprehensive home energy assessment available through Pennsylvania utility programs, followed by a detailed report identifying specific improvement areas. Their certification by multiple utility companies signals trusted expertise in navigating rebate programs and financing options such as NEIF and tax rebates for qualifying upgrades.
Customer reviews consistently highlight specific team members who managed their projects. Tyler served as Senior Energy Assessor for multiple reviewers, conducting initial energy audits and explaining findings in accessible terms. For installation work, reviewers named Owen, Ryan, and Nikki, noting professional conduct, cleanliness throughout the home, and baseline-to-completion testing that measured actual insulation improvement. One reviewer described a multi-day installation including rigid foam board in the basement rim joist to prevent air leakage between zones.
What Customers Say
All four featured reviewers gave 5-star ratings, with three specifically naming Tyler as their assessor or primary contact. Reviewers mention whole-home upgrades spanning HVAC, insulation, and air sealing rather than single-service calls. Common praise points include thorough communication, professional installation crews, and measurable post-project results.
Services
Home Energy Assessment
Comprehensive evaluation of insulation, air leakage, and HVAC systems identifying specific improvement opportunities.
Attic Insulation
Installation of insulation materials in attic spaces to reduce heat transfer and improve energy efficiency.
Basement Insulation
Foundation-level and rim joist insulation to prevent air leakage from lower floors into living areas.
Air Sealing
Total air sealing to close drafts and prevent conditioned air from escaping the home envelope.
HVAC Upgrades
Heat pump mini-split systems and other HVAC equipment upgrades for improved heating and cooling performance.
Insulation Testing
Pre and post-installation testing to verify improvement in home energy performance.