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El Sobrante HERS test services include:

  • Duct leakage testing
  • Verification of existing conditions for alterations and additions (form CF3R-EXC-20-H)
  • Refrigerant charge verification
  • Fan watt draw and cooling coil air-flow
  • Includes CF-3R paperwork for El Sobrante building dept.
  • Residential Alterations & New Construction
  • Solar system compliance testing for New Solar Homes Program - NSHP-PV-3
  • Competitive rates
  • Fast and reliable service
New construction (including additions): Duct sealing and testing are mandatory. Other measures are required unless otherwise indicated on the CF-1R.
Title 24 Duct leakage targets:
Under 5% for completely new duct systems.
Under 15% leakage for change-outs.
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