How Much Do Storm Windows Cost in Portland?

Storm windows add an extra layer of insulation to your existing windows, reducing drafts and lowering heating costs during Portland’s wet, cool winters. They are a popular alternative to full window replacement for homeowners who want better energy efficiency without the higher price tag.

Average Storm Window Costs

  • Interior storm windows: Interior-mount storm panels typically cost $80 to $200 per window depending on size and type.
  • Exterior storm windows: Traditional exterior-mount storm windows run $150 to $400 per window installed.
  • Low-E storm windows: Storm windows with low-emissivity coatings for maximum energy savings cost $200 to $450 per window.

Storm Windows vs. Window Replacement

Full window replacement typically costs $400 to $1,200+ per window depending on size and type. Storm windows at $150 to $400 per window deliver roughly 50-70% of the energy savings at 25-40% of the cost. For homes with windows that are structurally sound but poorly insulated, storm windows are often the smarter investment.

Types of Storm Windows

Interior Storm Windows

Mount inside the window frame with compression fit, magnets, or clips. Easy to install and remove seasonally. Good for historic homes where exterior modifications are restricted.

Exterior Storm Windows

Mount on the outside of the window frame. Provide better weather protection and are the traditional choice. Triple-track models let you slide panels up and down for ventilation.

Fixed vs. Operable

Fixed storm panels are the most affordable but cannot be opened. Operable models with sliding panels cost more but allow ventilation without removing the storm window.

Why Portland Homes Benefit

Portland averages around 155 rainy days per year. Single-pane windows, common in homes built before 1980, lose significant heat. Storm windows create a dead air space between the storm panel and existing window that acts as insulation. Many Portland homeowners see a noticeable reduction in heating costs and drafts after storm window installation.

Get a Quote

Mobile Screens Etc. installs storm windows for homes throughout the Portland metro area. Call (503) 639-4304 for a free estimate and help choosing the right storm window for your home.

Our sister company, Tualatin Valley Glass, handles full window replacement if storm windows are not the right fit for your situation.

Prices are general estimates for the Portland, Oregon area as of 2026. Actual pricing varies by window size, type, and quantity. Contact us for specific pricing.