How we verify listings | Window Contractors Near Me

A listing's ZIP code and license status comes directly from the state licensing file it was pulled from, where that file covers the city, not from a form a business filled out. In a city with no such file on this site, the listing instead comes from a Google Maps search, ranked by rating and review count and rechecked monthly; its ZIP comes from its own address, not a license record. Distances to nearby cities are calculated, not self-reported. Rather than a one-time import, we run the license check again on a set schedule, which is what keeps an expired or pulled license from lingering here long after it stopped being valid.

Where the listings come from

California: contractor license records of the California Contractors State License Board, from the CSLB Public Data Portal: License Master file dataset. CSLB notes that license status can change at any time and points to its license check for the most current status. How to check a license in California.
Connecticut: contractor license records of the Connecticut Department of Consumer Protection. How to check a license in Connecticut.
Florida: contractor license records of the Florida Department of Business and Professional Regulation, from the Construction Industry Public Records (licensee files) dataset. How to check a license in Florida.
Minnesota: contractor license records of the Minnesota Department of Labor and Industry. How to check a license in Minnesota.
Nevada: contractor license records of the Nevada State Contractors Board. How to check a license in Nevada.
Oregon: contractor license records of the Oregon Construction Contractors Board. How to check a license in Oregon.
Virginia: contractor license records of the Virginia Department of Professional and Occupational Regulation, Board for Contractors. How to check a license in Virginia.
Washington: contractor license records of the Washington State Department of Labor & Industries, from the L&I Contractor License Data - General dataset. data.wa.gov lists this dataset as updated three times a day. How to check a license in Washington.

Each license listing also links to its own record on the state agency's website, so you can check it at the source.

What we check before a business is listed

The license is active in the registry when we pull the data. Businesses with any other status are left out.
The license hasn't passed its expiration date.
The business matches window installation. We match on the registry's specialty classification, the registered business name, or both. That's why every listing shows its license class: check that it fits your job.
The business address on record is in a city with at least 3 matching businesses. Smaller cities don't get a page yet.

What each listing shows

Business name: As registered with the state, with capitalization tidied up.
Category: Our label for why the business is listed on this site, based on its specialty or registered name.
License class: The specialty the registry lists for the business, for example General or Roofing.
License number: The contractor license or registration number the registry uses.
Status: Active as of the date we checked. We don't list any other status.
Effective and expiration dates: When the current license took effect and when it expires, as the registry reports them.
Business type: For example limited liability company, corporation or individual, shown on each business's profile when the registry provides it.
City and ZIP: From the business address on record. They show where a business is based, not the area it serves, which is why we say “based in”.
Verify license: A link to the business's own record on the state agency's website.

What we leave out on purpose

We don't publish phone numbers, street addresses or the names of owners and principals, even where the registry lists them. The business name is the only name we show.

How often we refresh

We re-pull the registry data and rebuild these pages from it. Every city page shows the date its listings were last checked; the current listings were checked on September 30, 2026. A license can change between our checks, so the Verify license link, which opens the live record, is always the final word.

Top-rated lists

This page runs one Google Maps search, "window installation contractor" plus the city's name, whenever a city of 10,000-plus people has no window license file here to build its usual ZIP breakdown from.

Everything comes off the list except what's still open, sits inside window installation or window-supply work (so a tinting-film shop, a cleaning service, a blinds store and an auto-glass chain are gone before anything else happens), falls within roughly 6 to 25 miles of the city, loosening up for a bigger city and tightening for a smaller one, carries 3 reviews or more, and is named for an actual business rather than a person, a big-box chain or a lead marketplace. What's left gets ranked by a formula that weighs the star number against how many people gave it: under 15 reviews, a rating drifts toward a 4.3-star center; past that point, its own numbers take over, which is why a lone 5.0 loses to a 4.8 held up by three hundred reviewers. A city needs five names clearing all of that before it gets a page, and the page shows ten at most.

Each name keeps its own town and ZIP in its listing, same as it would on a license-based page here, even though this list is sorted by rating instead of grouped by ZIP. The checked month tells you how current the numbers are, since they shift. None of it checks a license: that step is still yours, the same way our guide walks you through calling the state directly before you call a contractor.

The details, the same on every top-rated page (2,672 city pages on this site):

One Google Maps search per city for “window installation contractor”, for cities of 10,000 or more people where this site has no license page. In 154 of those cities, where that search turns up too few businesses for a list, the list comes from the broader “window replacement company” search, filtered the same way.
Left out: businesses marked closed, businesses outside a matching Google category (stores, suppliers and showrooms among them), businesses far from the city center (about 6 to 25 miles, depending on the city's size), businesses with fewer than 3 reviews, and names that are a person's name or belong to a lead marketplace or a big-box store.
Ranked by a Bayesian average of the Google rating, (rating × reviews + 4.3 × 15) ÷ (reviews + 15), so a 5.0 from 3 reviews ranks below a 4.8 from 300.
A city needs at least 5 businesses that pass; the page shows the top 10.
Each listing shows its rank, Google rating, number of Google reviews, Google category, the town and ZIP in its address, and a link to its Google Maps listing. No phone numbers, websites, street addresses or review text.
Ratings were checked between September 2026 and October 2026. They change every day, so open the Google reviews link for the current figure.

A rating is not a license check and not an endorsement. Before you hire anyone, ask for the license or registration number your state or city requires and check it with the office that issued it.

What we don't do

We don't review or endorse contractors, and a listing isn't a recommendation. License listings are sorted alphabetically; top-rated lists are ranked only by Google rating and review count, as described above. No business pays to be listed, to be left off or for its position. If we ever add paid placements, they will be marked Sponsored. How we make money.

Something wrong?

Business owners can claim a listing to ask for a correction, or ask us to remove it.