Window Replacement in Oregon: CCB Licenses and Northern-Zone Glass

In Oregon, window replacement is work for a contractor holding a license from the Construction Contractors Board (CCB). The board says that, generally, Oregon law requires anyone who works for compensation in any construction activity involving improvements to real property to hold a license, and its examples of work that does not need a license are cleaning-type work such as gutter cleaning and pressure washing, debris cleanup, and certain property managers (CCB license page; CCB license search) ¹².

Oregon's climate is the other half of the decision. ENERGY STAR places every Oregon county, from the coast and the Willamette Valley to Bend and the high desert, in its Northern climate zone, where the window criteria focus on keeping heat inside the house ⁴⁵.

Who needs a CCB license

The CCB's license page sets out the rule and its exceptions (CCB license page) ¹:

• The rule. Generally, a license is required for anyone who works for compensation in any construction activity involving improvements to real property ¹. Replacing the windows in a house is an improvement to that property, so the rule generally reaches it.
• Examples of work that does not need a license. The page lists gutter cleaning, power and pressure washing for the purpose of cleaning, debris cleanup for yards or construction sites, and qualified real estate property managers working under a property management agreement who meet the page's conditions. It adds that the property manager exemption does not remove the need for tradespersons to hold their own licenses ¹.
• Endorsements. The board says contractors must carry the proper endorsement for the type of structures they work on. Its residential endorsements include Residential General Contractor, Residential Specialty Contractor and Residential Limited Contractor; commercial endorsements are separate ¹.

For a house, then, the questions are whether the installer holds a CCB license and whether it carries a residential endorsement. If you are unsure which endorsement fits a window job, ask the installer and compare the answer with the CCB record ¹².

How to check a CCB license

The CCB license search looks up contractors by license number, business or contractor name, or business phone number, and can be limited to active records ². The board calls the license number the most accurate way to search, says records are updated every 6 hours, and advises not to assume a contractor is unlicensed if a name search finds nothing, since spelling or punctuation can cause a miss ². The CCB's consumer tools page says the search shows whether a contractor holds an active license and has a surety bond, and whether complaints or disciplinary actions were filed with the board in the past 10 years (CCB consumer tools) ³.

Is the installer licensed with the right endorsement? Before you sign, check:

• that the license number on the quote matches the business on the CCB record ²;
• that the record is active ²³;
• that the endorsement covers residential work ¹;
• what the record shows about complaints in the past 10 years ³.

The guide on how to choose a window installer covers the rest of the vetting.

Contracts and getting more than one bid

The CCB's consumer tools page states that construction agreements for more than $2,000 must be in writing, and it recommends a written contract with a detailed description of the work, materials, costs, and start and end dates (CCB consumer tools) ³. The same page advises against agreeing to buy services on the spot and suggests getting more bids before deciding ³. It also describes a homeowner's right to cancel in some situations and links the board's guides to home improvement contracts and to resolving disputes, which are worth reading before you sign ³.

The article on how to compare window quotes gives a line-item checklist so the bids you collect compare like for like.

Oregon's climate zone for windows

ENERGY STAR sets window criteria for four climate zones, based on National Fenestration Rating Council (NFRC) ratings (ENERGY STAR key product criteria) ⁵⁶. Its county list puts all 36 Oregon counties, including Multnomah, Washington, Lane, Marion, Jackson, Deschutes and Klamath, in the Northern zone (ENERGY STAR climate zone finder) ⁴.

For the Northern zone, ENERGY STAR's criteria offer two routes ⁵:

Every ENERGY STAR window must also meet an air leakage limit of 0.3 cubic feet per minute per square foot ⁵.

What the numbers mean in Oregon

U-factor measures how quickly heat moves through the whole window, frame included; a lower number insulates better. It is the main number in the Northern zone, and the prescriptive limit of 0.22 is the tightest in ENERGY STAR's table ⁵.

SHGC (solar heat gain coefficient) is the share of the sun's heat that passes through the glass. In the warmer zones ENERGY STAR caps it; in the Northern zone it sets a minimum instead, so the glass still lets in some winter sun. The equivalent-performance routes accept a slightly higher U-factor when the glass admits more solar heat ⁵.

The same zone covers very different places. A house on the coast, one in Portland and one in the high desert east of the Cascades all fall under the Northern criteria ⁴, but they differ in sun, wind and summer heat. A west-facing wall in full sun and a shaded north wall may also call for different glass, which is a reason to ask about glass by orientation rather than assume one package fits every opening.

The energy-efficient windows explainer covers the ratings in more depth, and the article on window U-factor explains how to read the number on the NFRC label.

Questions for an Oregon quote

• What are the NFRC-rated U-factor and SHGC of the exact window and glass package quoted, and which Northern-zone route do they meet?
• Is the glass the same on every side of the house, or does it change by orientation?
• Is the job a full-frame replacement or an insert, and how will the installer check the existing frame for rot or water damage?
• How will the opening be flashed and sealed against rain?
• Does the written contract list the brand, series, glass package, start and end dates, and the total cost ³?

Cost and next steps

Window prices in Oregon follow the same drivers as anywhere: the number and size of windows, frame material, the glass package, full-frame or insert installation, and labor. This article does not quote Oregon or city prices, because the national cost surveys do not publish reliable local figures. The window replacement cost guide sets those surveys side by side and explains why they differ.

Whether your job needs a building permit depends on your city or county, and the article on window replacement permits explains why the answers differ.

When you are ready, you can compare quotes from window installers.

About these figures

• ¹ Official record: CCB license page (license generally required for anyone working for compensation in construction involving improvements to real property, the examples of work that does not need a license, residential and commercial endorsements), checked October 26, 2026.
• ² Official record: CCB contractor license search (search by license number, name or phone, active-records filter, records updated every 6 hours), checked October 26, 2026.
• ³ Official record: CCB consumer tools (search shows active license, surety bond and complaints in the past 10 years; agreements over $2,000 must be in writing; contract contents and getting more bids), checked October 26, 2026.
• ⁴ Official record: ENERGY STAR county climate zone spreadsheet for Oregon (all 36 counties in the Northern zone), checked October 26, 2026.
• ⁵ Official record: ENERGY STAR window criteria table for the Northern zone (U-factor 0.22 with SHGC 0.17 or more; equivalent routes 0.23 to 0.26 with SHGC 0.35 or 0.40 or more; air leakage 0.3), checked October 26, 2026.
• ⁶ Official record: ENERGY STAR statement that window criteria vary by climate zone and rest on NFRC ratings, checked October 26, 2026.