Begin with the problem, not a material
If upstairs rooms stay uncomfortable, record when it happens and what the heating or cooling system is doing. Ask an assessor to examine the attic, ceiling air leaks, insulation coverage and ducts together. A hot attic does not identify one universal fix. Ask whether an assessment is available through HEIP or a local weatherization program before paying for a private project.
Insulation and air sealing do different jobs
Insulation slows heat flow. Air sealing addresses gaps through which air moves. DOE's guidance for existing vented attics calls for ceiling penetrations to be sealed before insulation is installed. A contractor should explain how the air barrier and insulation will work together, including around the access hatch and difficult edges.
Do not select a material only because its advertised R-value is higher. Ask for the proposed installed depth, coverage, treatment of existing material and the reason that material suits the assembly. Get the scope in writing, including preparation, access, cleanup and photographs of the completed work.
Preserve ventilation and assess safety
Air sealing should be considered with the home's fresh-air and combustion needs. A qualified professional should identify appropriate clearances and conditions around heat sources, equipment and wiring. Do not block attic ventilation openings simply to fit more insulation. Moisture or roof leaks need investigation rather than being concealed by new material.
Check the rebate before work begins
LADWP's attic program specifies batt-and-roll products and requires supporting documentation. Other insulation types are not automatically covered by that particular offer. Confirm product eligibility, current payable amounts, photographs, permit requirements and the applicable deadline before purchasing or installing. A material's general efficiency does not establish rebate eligibility.
Renters and next steps
Ask the property owner or manager who can authorize an assessment and work. Keep the proposed work separate from any lease or payment questions; this guide does not determine those arrangements. Renters can start with comfort observations and a request for an authorized assessment rather than entering an attic themselves.
Compare written scopes before comparing totals. After approved work, retain the invoice, permit and installation records. Compare daily electricity use during similar seasons, while recording changes in occupancy and thermostat settings. This guide does not promise a dollar saving, a particular payback period or an installation award.
For assistance pathways, return to the HEIP, LIHEAP weatherization and attic-rebate guides in this resource center.