Insulation Upgrade Rebates

Overview

Upgrading your insulation can make your home more energy efficient and comfortable. It can also save you money. If your home was built before 1988 and you have electric heat, upgrading to current standards could reduce your utility bills significantly for years to come.

To get the full value from insulation and air sealing, it must be installed properly. Whether you hire a contractor or do the work yourself, it must be placed in the right location and installed without leaving gaps that diminish the performance of the insulation. Properly installed insulation in attics, walls and crawlspaces helps stop cold air drafts, holds heat inside and reduces outside noise.

Insulation Upgrade Rebate Details*

We offer rebates for insulating ceilings, floors, attics, crawlspaces and walls. The rebate amount varies based on property type. See below for details.

Residential (Owner-Occupied) Property – .80¢/sq. ft.

  • Up to 4 Units: Attic R11 or less to R49 with air sealing
  • Floor R11 or less to R30 or cavity fill with air sealing
  • Wall R0 to R11 or R13

Rental Properties (Up to 4 units) – $1.60/sq. ft.

  • Up to 4 Units: Attic R11 or less to R49 with air sealing
  • Floor R11 or less to R30 or cavity fill with air sealing
  • Wall R0 to R11 or R13

Rental Properties (5+ units) – $1.00 sq. ft.

  • 5+ Units: Attic R11 or less to R49 with air sealing
  • Floor R11 or less to R30 or cavity fill with air sealing
  • Wall R0 to R11 or R13
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Rebate Requirements

  • Home must have been built before 1988
  • Primary heat source must be electric
  • If your home has knob and tube wiring, a “passing report” by a journeyman electrician is required prior to project approval. Contact us or your insulation contractor for more information on knob and tube wiring and inspections.

If you are installing the insulation yourself, in addition to the above requirements, you must also:

  • You need a pre-inspection by Tacoma Power before works begins. Call us at 253-502-8363 to schedule.
  • Be approved before you begin the work
  • Submit copies of product receipts or invoices

Not Eligible:

  • New construction
  • Manufactured homes

Please note that customers are eligible for either a rebate, loan or income-eligible grant but not a combination of these.

Insulation Upgrade Loan Details

We offer a seven-year, zero-interest loan up to $2 per square foot for insulation upgrades in owner-occupied homes. You must have a good TPU payment and credit history to be eligible. The minimum loan amount is $1,000 and applies to the following upgrades:

  • From attic R11 or less to R49 with air sealing
  • From floor R11 or less to R30 or cavity fill with air sealing
  • From wall R0 to R11 or R13

Loan Requirements

Not Eligible

  • Limited Liability Companies (LLCs) and corporations
  • Rental properties

Insulation Upgrade Income-Eligible Grant Details

You may be eligible to receive low-income incentives for upgrading insulation. The incentive covers up to $1.60 per square foot in owner-occupied homes, which could cover most of the cost of the upgrade.

Grant Requirements

  • You must own and live in the home.
  • You must complete and submit a Grant Application complete with supporting documents.
  • The work must be completed by a licensed contractor with an active Trade Ally Agreement with us.

How to Apply

Simply fill out the relevant application below, check the box next to the program improvement you want to claim and submit it to us.

Owner-Occupied Application

Additional relevant documents and checklists

To learn more, see our Rebates page and Rebate FAQs.

*Program requirements and rebate amounts are subject to change without notice. Check with Tacoma Power for current information. Energy and heating savings are estimates only. Actual savings may vary. Tacoma Power does not make any representations, promises or warranties with respect to actual cost savings from any of the products. Tacoma Power does not endorse any particular contractor, manufacturer or product.

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