Portland OR Window Replacement in 2026: Licenses, Lead Rules, Permit, Historic Districts

Who may even bid on your windows in Oregon

A search for window replacement portland oregon returns contractor pages first, and the first question those pages skip is who may legally bid. Oregon law ties the right to bid to a current Construction Contractors Board license with the right residential endorsement. ORS 701.021 says a person who undertakes, offers to undertake or submits a bid to do work as a contractor must hold it, except as ORS 701.010 provides. For homes the endorsement is residential general, residential specialty, residential limited, residential developer or a few others.

The CCB license comes first

The CCB home page offers a license search, so a number on a bid can be checked before you sign.

Built before 1978: the lead-paint license

The CCB Specialty Licenses page, Lead-Based Paint section, says Oregon enforces the federal EPA rules for housing built before 1978: contractors must complete training and obtain a special license "before they can even bid", and "only contractors who are licensed for Lead-Based Paint Renovation can bid or work on pre-1978 homes." Homes built before 1978 are presumed to have lead paint unless testing shows otherwise, and in Oregon the renovation contractor must also hold a CCB license.

Training is an eight-hour Renovation, Repair and Painting course; the certificate lasts five years, then a four-hour refresher. CCB publishes a list of lead-safe contractors by county. We did not read the federal rule text itself, and we have no count of Portland houses built before 1978.

Six square feet inside, twenty outside

The page counts a job as renovation when it disturbs more than 6 square feet of painted surface per room inside or 20 square feet outside, and says "Window replacement is considered renovation." Whether a given job crosses those thresholds is for the contractor to document; we did not read the federal rule that sets the exceptions. For a pre-1978 house, ask to see both the CCB license and the lead renovation license before signing.

What the Oregon contract rules give you

Whatever the quote for replacement windows portland oregon or for home window replacement portland oregon looks like, Oregon Revised Statutes chapter 701 sets the baseline for every residential window contract.

Written above $2,000

ORS 701.305 says a contractor may not do residential work without a written contract if the price is over $2,000. If the price starts under $2,000 and grows past it, the written contract must be mailed or delivered within five days after the contractor knows. A contractor may not start without it. Get the scope, materials, schedule, and total price in writing before work starts.

Cancel by the end of the next business day

ORS 701.310 gives the owner of a residential structure the right to cancel an initial written contract by written notice before 12 midnight at the end of the next business day. This right does not apply if both parties agree that work starts before the period ends, or after the contractor substantially begins the work. The statute says the notice may be delivered in any written form or by any means that can readily be converted to written form, including fax, email and regular mail. Keep a dated copy of whatever you send.

Retainage, permits and the license number

ORS 701.315 says a residential contract may not limit your right to file a complaint with the CCB; it may require mediation or arbitration of a dispute. ORS 701.325 says a city, county, or state agency may not issue a building permit to a person who needs a contractor license unless the license is current and endorsed for the work, and the permit lists the license number. ORS 701.420 allows partial payment; the owner may hold back retainage of not more than five percent of the contract price of the work completed, and partial payment is not acceptance of the work or a waiver of defects.

If the job goes wrong: the CCB clock

The CCB Consumer Protection page outlines the complaint process for existing structures. The page sets out a deadline, a notice requirement, a fee and a bond path. Missing a step can close the door on a complaint.

One year, a certified letter and a $50 fee

For an existing structure the complaint must be received within one year from the date the work was substantially completed or the date work ceased. It must be filed against a licensed contractor. You must first give 30 days' pre-complaint notice by certified mail to the address on the board's record.

There is a $50 statutory processing fee for most complaints. The page tells owners to file promptly because the bond amount is limited.

The bond is reached through a judgment

The CCB Consumer Protection page states the only path to access a contractor's bond is through a signed judgment from the court. Small claims court has a $10,000 limit. A bond payout takes at least 60 days after the board receives a certified judgment, and when several claims arrive in the same 90 days payment may be held. The page adds that the bond amount is limited and that several people may be seeking restitution from it.

What Portland's permit page says about windows

The City of Portland Permitting & Development page Adding Windows or Replacing Windows sets out when a permit is required, what energy and safety rules apply, and how egress and fall prevention work. The same page was Google result 5 for window replacement portland or on 22 October 2026.

Same opening, same size: no permit

The PP&D page table says replacing a window with no change to the header size or location, and no reduction of the clear opening size, does not require a permit. Installing or removing storm windows also does not require a permit. Land use reviews may be required if the property is in a design zone or historic zone. Confirm your zone before assuming no review is needed.

Widening or adding: a permit

The same table says adding a new window where there was none requires a permit. Replacing and widening a window requires a permit. The not-required line is limited to a replacement with no change to the header size or location and no smaller clear opening; for anything between those two cases, ask PP&D. Where a permit is issued to a contractor, ORS 701.325 says it lists the contractor's license number.

Safety glass, egress and the 0.30 U-factor

The PP&D page says replacement windows in an existing house shall have a U-factor of 0.30 or less, and replacement windows in listed places must use safety glass: within 24 inches of a door and 60 inches of the floor, around tubs and showers, within 36 inches of stairways. Every sleeping room and basement needs an escape opening of at least 5.7 square feet (5.0 at grade floor), 20 by 24 inches minimum, sill at most 44 inches; a window 20 inches wide must be 41 inches high to reach 5.7.

Searches for glass replacement portland or or glass replacement portland oregon usually mean one pane. The PP&D table we read has no pane-only line, so ask PP&D before you assume a pane swap and a window swap are the same case, and the same goes for window glass replacement portland oregon next to a door or a tub. The page lists 503-823-7300 and a free 15-minute appointment.

Historic districts: the frame material decides

Portland Zoning Code 33.445, edition dated 10/1/24, controls historic resource review for window replacements. The exemption list in 33.445.200 names specific frame materials and conditions. A job that is not on the list is simply not exempted by it.

The exemption list in 33.445.200

In 33.445.200 the list of changes exempt from historic resource review says: "Replacement of vinyl, fiberglass, or aluminum windows is exempt on all resources in all zones when the following are met." On contributing resources: the structure was built before 1940; the new windows are wood or metal-clad wood; they are installed exactly within the existing window openings; the glass is recessed at least 2 inches from the outside edge of the exterior finish material. On noncontributing resources: the building received final inspection at least five years ago; new windows are wood, metal-clad wood or fiberglass; same openings; glass recessed at least 2 inches. In single-dwelling zones there is an added path: contributing resource, existing windows face the rear lot line, new windows wood, metal-clad wood or fiberglass, same openings, glass recessed 2 inches.

What the list leaves out

The exemption lists replacing vinyl, fiberglass, or aluminum windows; replacing wood windows is not on that list, our reading. If your existing windows are wood, this exemption does not cover the job, and whether review applies is a question for the city. PP&D news of 4 Feb 2022 says new historic-resource zoning changes took effect 1 March 2022, including looser review for some window replacements in local historic districts.

We did not read the district map, the landmark or conservation-district sections in detail, or rules for National Register listings outside local districts; the answer for an address comes from the city. The Zoning Hotline is 503-823-7526.

Call before you sign

Because the exemption turns on frame material, building age, resource status, zone, and opening geometry, a phone call to the Zoning Hotline or a 15-minute PP&D appointment can confirm whether your specific address and window plan need review. Do not rely on a contractor's verbal assurance; get the city's written determination or email before you sign a contract.

The money: what is not subsidized in 2026

Two programs homeowners often ask about show no Oregon window line on the pages we read. The Energy Trust of Oregon window line is for Washington customers only, and the federal credit covers improvements made through the end of 2025.

Energy Trust's window line is for Washington

The Energy Trust of Oregon Windows page lists Windows for state WA only: $10 per sq ft, U-value 0.30 or less, replacing single pane or metal double pane windows, for SW Washington customers of NW Natural heating with gas. The table has no Oregon window line, and we did not check other Oregon programs. If a quote shows a line called a rebate or discount, ask for the program name in writing.

The federal credit ended with 2025 installs

The IRS page on the Energy Efficient Home Improvement Credit covers improvements made through Dec 31, 2025; windows had a $600 annual limit. So no federal window credit for a 2026 install, our reading. A quote that promises a federal window credit for a 2026 install should name the IRS rule it relies on.

What actually moves a Portland quote

Price depends on drivers, and in Portland two of them come from the documents above: lead-safe handling on a house built before 1978, and the frame material and opening rules in a historic district. The usual drivers apply everywhere: how many openings, insert or full-frame, the glass package and second-story access. No cost-per-window figures are given here; the installation cost page shows the arithmetic. The line-by-line arithmetic, labor hours per opening and whole-house math, sits on our installation cost guide; the only figure that binds your house is the written, itemized quote.

Glass for a mild, wet climate

Portland's climate sits in one ENERGY STAR Northern zone across the metro. The code minimum and the voluntary label target differ. Reading the NFRC label on the quote tells you what you are buying.

One zone from Gresham to Vancouver

The ENERGY STAR climate-zone table (V7), by primary county, puts Multnomah (65 ZIP codes), Washington County (28), Clackamas (25), Columbia (8), Yamhill (10) and Clark County WA (24) all in the Northern zone, so the metro does not split. ENERGY STAR criteria for Northern (table Oct 2023): U-factor 0.22 or lower and SHGC 0.17 or higher. Portland code allows U 0.30. U-factor is heat flow (lower is better insulation); SHGC is the solar heat gain coefficient.

14.6 hot days, 31.7 freezing days, 157 wet days

NOAA NCEI 1991-2020 Climate Normals for Portland International Airport show an average of 14.6 days a year with a high of 90F or more, 31.7 days with a low of 32F or lower, and 157 days with 0.01 inch of rain or more, on 36.92 inches of precipitation. Freezing nights outnumber hot days about two to one, which fits a zone whose cap is on heat flow; the Northern criteria set a floor for SHGC (0.17 or higher), not a ceiling.

Read the NFRC label, whole unit, on the quote

The NFRC label reports whole-unit U-factor and SHGC, not center-of-glass values. A U-factor of 0.30 or lower fits the city line; 0.22 or lower, with SHGC 0.17 or higher, fits the ENERGY STAR Northern criteria. If the quote shows only center-of-glass numbers, ask for the whole-unit values.

Beaverton, Gresham, Lake Oswego, Vancouver: whose rules?

State rules travel across the metro; city rules stay inside each city.

State rules travel, city rules stay

Beaverton and Hillsboro (Washington County), Tigard, Lake Oswego (Clackamas/Washington), Gresham (Multnomah), Milwaukie and Oregon City (Clackamas) are separate cities, and Vancouver sits across the Columbia River in Clark County, Washington. A search for window replacement oregon city still meets the state rules above and a city office we did not read. We did not read any suburb's permit rules or Washington contractor rules, so ask the building department that serves the address before you sign.

Companies, Reddit threads and the filter that works

The query portland window replacement reddit lands on an r/askportland thread about window replacement companies, a Google result on 22 Oct 2026; we did not read its comments. Threads are anecdotes, not documents. The documents support a filter built on paper: the CCB license search, the lead renovation license for a pre-1978 house, the written contract above $2,000, and the city's answer for the address. We do not rank or recommend companies. If the office is settled, our replacement process guide shows the order of a job on site, and the vinyl vs wood and double-hung vs casement pages cover the frame and style choices.

Seven questions to ask before you sign

Before you sign a window replacement contract, ask the contractor these seven questions. Each one is tied to a specific Oregon statute, city code, or program rule that affects your rights, your permit, or your money. A clear answer protects you; a vague answer is a warning sign.

The list

1. What is your CCB license number and which residential endorsement do you hold? ORS 701.021 requires a current CCB license with a residential endorsement to bid. A clear answer is a number and an endorsement; the CCB site has a license search.
2. Do you hold a Lead-Based Paint Renovation license for this project? The CCB page says only lead-licensed contractors can bid or work on pre-1978 homes, which it presumes contain lead paint, and it counts window replacement as renovation. A clear answer is a lead license number you can check.
3. Will you provide a written contract before work starts, and what is the cancellation deadline? ORS 701.305 requires a written contract above $2,000; ORS 701.310 lets you cancel by written notice until midnight at the end of the next business day. A clear answer names the deadline as a date and time.
4. Does this job change the header size or the clear opening size, and whose name will be on the permit? PP&D says a same-header, same-opening replacement needs no permit; widening or adding does. Under ORS 701.325 a permit lists the license number. A clear answer says whether a permit applies and whose name goes on it.
5. Is the address in a historic district, and which frame material does the exemption allow? Zoning Code 33.445.200 exempts replacing vinyl, fiberglass or aluminum windows under listed conditions; replacing wood windows is not on the list, our reading. The city, not the contractor, settles your address.
6. If the quote shows a line called rebate or discount, which program does it refer to? The Energy Trust Windows table lists Washington only, and the IRS credit covers improvements through 2025, so we read no federal credit for a 2026 install. A clear answer names the program in writing and says who files.
7. What is the payment schedule, and does it allow holding back up to five percent until the work is complete? ORS 701.420 lets the owner hold back up to five percent of the contract price of work completed; partial payment is not acceptance. A clear answer is a written schedule that shows what is paid when and where the retainage sits.

The numbers on a Portland quote, worked out

These figures are our arithmetic on the statute lines, not prices. They show what the law lets you hold back and when the cancellation clock runs out.

Retainage at five percent

ORS 701.420 says the owner may hold back retainage of not more than five percent of the contract price of the work completed. On a contract price of $8,000 the most you may hold back from the work completed is $400 if the whole job is done. On $15,000 the maximum is $750. On $24,000 the maximum is $1,200.

The cancellation deadline by weekday

ORS 701.310(1) gives the owner of a residential structure the right to cancel an initial written contract by written notice before 12 midnight at the end of the next business day. If you sign on a Monday the written notice must go out before midnight at the end of Tuesday. If you sign on a Friday the notice must go out before midnight at the end of the following Monday.

This is our reading of "next business day"; we did not check holidays. Notice may be delivered in any written form or by any means that can readily be converted to written form, including email and regular mail.

Repair or replace, and when

Deciding between repair and replacement starts with simple tests.

Tests before you ask for a quote

Window repair portland or and window repair portland oregon searches belong to the first branch: repair when only a part has failed. Screens are a separate job, because window screen replacement portland or and window screen replacement portland oregon mean a screen, not a window. Window screen repair portland or, replacement window screens portland oregon and window screen replacement near portland or are priced apart from any window.

Start with the signals before you ask anyone for a number: drafts at the sash, condensation between the panes, a sash that sticks, soft or rotted wood. Our when-to-replace and drafty windows pages list the tests one by one. In a pre-1978 house or a historic district, add one question to the list: what the job will cost in lead-safe handling or in approved materials.

What changes with the season

The normals give a rough calendar: 157 days a year with 0.01 inch of rain or more, 31.7 days with a freezing low, 14.6 days with a high of 90F or more. Ask the contractor how many openings stand open at the end of a working day and what happens to an open one if rain is forecast. The order of a job on site is in our window replacement process guide. The signal-by-signal tests are on our when to replace windows page, the leak-chasing half is on drafty windows, and the order of a job on site is in the replacement process.

What we read, and how

This guide is built from public documents read on 22 October 2026. The paragraph below names each source and notes what was not read.

Documents read on 22 October 2026

ORS 701.021, 701.305, 701.310, 701.315, 701.325 and 701.420; the CCB Specialty Licenses (lead-based paint) and Consumer Protection pages; the Portland PP&D window page; Portland Zoning Code 33.445 (edition 10/1/24) and the PP&D news of 4 Feb 2022; the Energy Trust of Oregon Windows page; the IRS page on the home improvement credit; NOAA NCEI 1991-2020 normals for Portland airport; the ENERGY STAR zone table V7 and the Oct 2023 criteria table.

We did not read: the federal lead rule text, the district map, the landmark and conservation-district sections of 33.445 in detail, National Register rules outside local districts, any suburb's permit rules, Washington contractor rules, other Oregon utility programs and other Energy Trust pages, the Reddit comments, or a count of Portland houses built before 1978. The suburb names are our own list.

Common questions, Portland edition

Sources

• Oregon Construction Contractors Board: Specialty Licenses and Certifications, Lead-Based Paint section (read 22 Oct 2026)
• Oregon Construction Contractors Board: Consumer Protection, the complaint and mediation process (read 22 Oct 2026)
• Oregon Revised Statutes 701.021: license requirement and endorsements (OregonLaws copy of chapter 701)
• ORS 701.305: written contract with a residential property owner
• ORS 701.310: cancellation of a residential contract
• ORS 701.325: condition for obtaining a building permit
• ORS 701.420: partial payment and retainage
• City of Portland Permitting & Development: Adding Windows or Replacing Windows (Brochure 10), read 22 Oct 2026
• City of Portland Zoning Code, Chapter 33.445 Historic Resource Overlay Zone, edition of 10/1/24
• City of Portland Permitting & Development: new historic resources zoning changes take effect March 1 (news, 4 Feb 2022)
• Energy Trust of Oregon: Windows incentives page (read 22 Oct 2026)
• ENERGY STAR: climate zone table by ZIP code, version 7 (Oregon and Clark County counties)
• ENERGY STAR: certification criteria for residential windows by zone, October 2023
• NOAA NCEI: U.S. Climate Normals 1991-2020, annual normals for Portland International Airport (USW00024229)
• IRS: Energy Efficient Home Improvement Credit, improvements made through December 31, 2025