San Mateo County Weatherization Assistance Program

San Mateo County Office of Sustainability

Available Weatherization

About This Program

San Mateo County Weatherization Assistance Program is available to homeowners and renters in San Mateo, CA.

Federal WAP program administered by San Mateo County to reduce energy costs for income-qualified households. Provides attic and wall insulation, air sealing, weather-stripping, minor HVAC repairs, and refrigerator replacement at no cost.

Full cost of weatherization improvements covered by federal grant

Official source site checked live on 2026-06-22.

Data last verified 2026-06-09. How we verify our data.

In San Mateo, CA, you can combine this program with other local help to cut your cost:

Key Details

  • Free weatherization improvements up to $8,000
  • Income at or below 80% AMI required
  • Covers insulation, air sealing, HVAC tune-ups
  • Available to homeowners and renters
  • Priority for seniors and families with children

How to Apply

Get free help applying Visit Official Program Page Track this program

(650) 599-1011

A grant-savvy contractor in San Mateo, CA can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in San Mateo early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • Household income proof (recent pay stubs, last year's tax return, or benefit award letters for everyone in the home).
  • Proof of age (driver's license or birth certificate) if the program is age-based.
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • A recent utility bill for the home (energy and weatherization programs use it to confirm service and usage).
  • Photos of the problem area or the work to be done.
  • The program's own application form, completed (use the official link or phone number on this page).
Download this checklist (PDF)

Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.

Deadline: Rolling, subject to federal allocation

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

Email us about this program

Frequently asked questions

How much can San Mateo County Weatherization Assistance Program provide in San Mateo, CA?

Up to $8,000 per home.

Who qualifies for San Mateo County Weatherization Assistance Program in San Mateo?

San Mateo County Weatherization Assistance Program is open to homeowners and renters in San Mateo, CA. It prioritizes low-income households. It serves seniors.

How do I apply for San Mateo County Weatherization Assistance Program in San Mateo, CA?

Apply directly with San Mateo County Office of Sustainability using the official program link on this page or call (650) 599-1011. There is no middleman and no fee.

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

Get matched with a pro, free Browse San Mateo, CA contractors

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