Last updated 2026-08-19
TL;DR
Colorado does not license storefront window cleaning as a trade. There is no board exam. You register with the Secretary of State, get a free IRS EIN if you need one, open a DOR account if your invoices are taxable, and pull the city license where you work. Confirm fees with each office. Insurance and vendor packets usually take longer than the state filings.
Do you need a license for storefront windows in Colorado?
No. Colorado does not issue a statewide occupational license for storefront window cleaning. You will not sit a board exam. You will not hang a state window washer card in the van. You still file ordinary business paper with the Secretary of State, the Department of Revenue, and the city or county where the glass actually sits.
The Colorado Division of Professions and Occupations publishes the jobs it licenses. Nurses. Electricians. A long public list. Window cleaning is not on it. Read that list yourself before you pay anyone who promises a state card. If the trade ever moves under a board, it shows up there first. [1]
What you do need looks boring. That is the point. File an entity or a trade name with the Colorado Secretary of State if you are not simply working under your legal name. Pull an IRS EIN if the bank or a property manager asks. Open a DOR account if your invoices are taxable. Then ask the city clerk whether they print a general business license for a cleaning route. [2] [3] [5]
Treat a statewide "storefront windows license package" as money set on fire. The state is not hiding a permit. Confirm current forms and fees with the office that cashes the check. I am not going to invent a number that changed last Tuesday.
Hire even one helper and CDLE rules on wages and workers' compensation start to apply. Work alone and some of that drops away. Employees do not get you a pass. [6]
Is there a storefront windows board in Colorado?
No. There is no Colorado storefront windows board that sits for exams, posts apprentice hours, or mails a quota. People search that phrase because other trades have a real board. This one does not.
Your practical counters are the Secretary of State, DOR, the city clerk, and CDLE if you have staff. They record filings. They do not grade water spots.
Keep the DPO professions list bookmarked anyway. Legislatures add trades. Until window cleaning appears there, a statewide card is a story someone is selling. [1]
Sister guides show you how quiet Colorado really is on this. The paper path for storefront windows board in Arizona and storefront windows board in California runs through contractor machinery that Colorado does not copy for a squeegee route.
People type storefront windows Colorado hoping a board packet exists. They find clerks. Confirm every current fee on the page that accepts payment. Stale blog numbers are how operators overpay expediters.
What paper do you file first with the state?
Start with the entity decision, then tax, then the city. Do not start with a decal.
If you want an LLC or a corporation, use the Secretary of State's business forms and e-filing system. If you want a trade name on invoices, file that too. Confirm the current fee on the SOS side. Online filings often post quickly. That is not a promise, and I will not invent a processing clock. [2]
Get an EIN from the IRS if you formed an entity, plan to hire, or a vendor packet demands one. The IRS is blunt about price. "Applying for an EIN is a free service offered by the Internal Revenue Service," the IRS says on its EIN page. Ignore any site that charges for that form. [5]
Then talk to DOR. The sales and use tax license page is the right door if you will make taxable sales. Confirm taxability before you print tax on a recurring window stop. Home-rule cities write their own tax rules, and those rules are not a copy of the state list. [3] [4]
Here is the stack I actually use as a checklist. None of it is a window-cleaning license.
| Filing | Office | Statewide trade license? | Where to confirm |
|---|---|---|---|
| Entity or trade name | Colorado Secretary of State | No | SOS business forms [2] |
| Sales tax license | Colorado Department of Revenue | No | DOR sales and use tax licenses [3] |
| Occupational window license | None | There is not one | DPO professions list [1] |
| City business license | City clerk or excise | No, it is local | Denver or Boulder pages [10] [13] |
| EIN | IRS | No | IRS EIN page [5] |
| Workers' comp | Private carrier, CDLE oversight | Only if you have employees | CDLE workers' compensation [6] |
Work under your own legal name as a sole proprietor and you can skip the entity filing. Plenty of first routes do that. Property managers still want an EIN, a certificate of insurance, and a W-9. The state paperwork is the easy part.
How much does storefront windows cost in Colorado?
Two different bills get mixed up in that question. One is what you spend to start. The other is what a shop pays you.
Startup paper is cheap next to insurance and a working vehicle. SOS and city filing amounts change. Confirm them on the live fee pages. An EIN is $0. [5] I will not invent a current SOS or Denver fee. That is how these pages go stale and then get copied.
The real checks are general liability, a way to get around the Front Range, pure water or chemicals, poles, and towels. Ground-level storefront work costs less to insure than swing-stage high-rise work. Brokers price height, lifts, and employees. Nobody publishes a clean Colorado-only premium table I trust, so treat any "average insurance cost" on a forum as gossip.
Equipment can stay modest. A water-fed pole and a way to polish door glass will cover a lot of downtown and strip-center glass. A $149 one-time Pure-Water Pole Route Kit from StorefrontWash is a cheap pole path if you already have water and transport. It does not replace a city license or a COI.
What shops pay you is not in a government table. I have not seen a current public Colorado survey of storefront stop prices with a method I would cite. Price the glass area, the frequency, hard-water spotting, parking, and whether they want you weekly. Recurring monthly stops pay the rent. One-off grand-opening cleans do not.
Waste of money: license expediters for a license that does not exist, franchise binders you do not need, and wrapping a truck before you have ten stops.
Colorado's state sales tax rate is 2.9 percent before local districts add their own tax. If tax applies to a given invoice, look up the combined rate for the address you bill. Confirm it. [4]
How long does storefront windows take in Colorado?
Paper and the actual wash are different clocks. Do not mash them into one answer.
State filings can move fast if you e-file a clean SOS record and an IRS EIN. DOR accounts through Revenue Online are often quick too. I will not promise a day count. The offices do not owe you my guess, and they change staffing. Confirm current processing notes on the SOS and DOR pages when you file. [2] [3] [5]
City licenses are the wildcard. Some clerks mail a number in days. Some want more forms. Downtown Denver vendor packets from building managers will outlast the city license. Additional insured endorsements and waiver language are what actually delay the first invoice.
The wash itself is short once you know the stop. A small retail storefront (door, two bays, sidelights) is often a 20 to 45 minute visit on a water-fed pole. First visits run longer. You are finding the spigot, the alarm contacts, and the manager who hates streaks on black frames.
Winter adds time. Ice on the sidewalk. Frozen pole sections. Wind on the Front Range will shove a long pole around. Budget the weather, not a national average from a coastal blog.
If someone quotes you a guaranteed state approval time, walk away. No approval or timing guarantees belong in this paper path.
Do Denver and other cities add their own licenses?
Yes. Many do. The missing state board does not mean the city is quiet.
Denver runs a general business license through Excise and Licenses. If your route lives in Denver, read that page and apply. Confirm the current fee. Ask about home-occupation extras if the tank sits in a driveway in a residential zone. [10]
Boulder publishes its own business license process. Other home-rule cities run a clerk's counter that looks similar on the surface and differs in the details. Do not assume a Denver number covers a Boulder stop. It does not. [13]
Home-rule cities also write tax rules that are not copies of the state. That is why your DOR answer and your city tax answer can disagree. Ask both before you print tax on a recurring invoice. [3] [4]
Pull the city license for every city where you keep standing accounts. A one-off suburban stop is a judgment call. A weekly downtown bank is not.
Mountain towns and resort streets add parking and pedestrian rules you will not see on the SOS site. Call the clerk where the glass sits. Then save the email.
Do you need a contractor license to wash storefront glass?
Usually no, if you are washing glass, not installing it. Colorado has no statewide general contractor license. Some cities license construction contractors. Cleaning existing storefront glass is maintenance, not a building permit job.
The line moves if you start replacing seals, swapping insulated units, or taking a building permit. That is glazing or construction. Different paper. Stay on the cleaning side and you are in business-license land, not contractor-board land.
A water-fed pole does not trigger a contractor card. A swing stage on a high-rise might trigger the building owner's rules, OSHA, and site prequalification. That is the building's packet. It is not a state window board.
If a property manager demands a "contractor license number," ask which city's contractor license they mean. Then call that city. Do not invent a state number. There is not one for this wash work. [1]
Compare with storefront windows board in Idaho if you also run Boise stops. Different state. Different clerk.
Is window cleaning taxable in Colorado?
Maybe. Do not guess on the invoice.
Colorado charges a 2.9 percent state sales tax on the commodities and services the statute actually lists, plus local tax that varies by address. [4] Most ordinary services sit outside the state's taxable list, and window cleaning is a service. Home-rule cities can tax a wider set of services than the state does.
DOR's sales and use tax license page is where you start if you will make taxable sales. The sales tax rates page is where you look up a combined rate for a street address. Confirm both. [3] [4]
Call DOR and the city tax desk with a sample invoice before the first month of billing. Ask whether the wash is taxable. Ask whether chemicals bundled into the stop change the answer. Ask whether a Denver stop and a Lakewood stop are treated the same. Get the answer in writing if you can.
Charging tax you do not owe annoys shops. Skipping tax you do owe annoys auditors. This is not the place to follow a Facebook group.
What insurance and CDLE rules hit you in year one?
Insurance is not a state window license. Property managers still treat a certificate of insurance like one.
Carry general liability that names the building as additional insured when they ask. Ask your broker about height limits in the form. A sidewalk pole route and a bosun's chair are not the same policy. I will not invent a premium. Quotes move with claims history and endorsements.
If you have employees, Colorado expects workers' compensation coverage. CDLE oversees that system. Solo members of your own LLC are a fact pattern you confirm with the Division and the carrier, not with a forum post. [6]
Hire someone and you also inherit the Colorado Overtime and Minimum Pay Standards Order (COMPS), the state minimum wage (adjusted every year, confirm the current dollar on CDLE's minimum wage page), unemployment insurance, and FAMLI premiums. [7] [11] [12]
Do not classify a regular Saturday helper as a contractor because it feels easier. CDLE cares about the real facts of the job. If you set the hours and hand them your pole, you probably have an employee.
Stay solo through the first cluster of stops unless the route is already overflowing. Payroll paper is how a simple wash business gets heavy.
What OSHA rules apply to storefront window work?
Sidewalk work with a water-fed pole is mostly footing, electrical sense around storefront circuits, and not dumping dirty water where the city says you cannot. Leave the sidewalk and the federal rules get loud.
OSHA's general industry fall rule is not subtle. "Except as provided elsewhere in this section, the employer must ensure that each employee on a walking-working surface with an unprotected side or edge that is 4 feet (1.2 m) or more above a lower level is protected from falling by one or more of the following:" That is 29 CFR 1910.28. Four feet is a first-story ledge, not a skyscraper. [8]
OSHA also keeps personal fall protection rules at 29 CFR 1910.140. Read them before you step off a lobby floor onto a canopy. [14]
Ladders on a busy Colorado sidewalk create their own mess. Pedestrians. Ice. Wind. I prefer a pole from the ground for ordinary storefront glass. It is slower on tiny upper transoms and faster on everything else.
OSHA does not hand you a Colorado permit. It hands you a citation if someone gets hurt and you skipped the standard.
What is a waste of money before your first route?
A statewide license service. There is no statewide license. [1]
A wrapped van before ten stops. A franchise binder. A thick "business in a box" that reprints SOS and DOR links you can open for free.
Fancy chemicals on Front Range glass when a pure water pole would have stopped the spotting. Denver-area tap water is hard. Spots are the complaint you will actually get. Sell clean glass, not perfume in a spray bottle.
Spend on liability insurance, a reliable way to haul water, and enough towels to do doors right. Skip the second Instagram brand.
City license fees are not the waste. Skipping them in a city that checks is the waste. So is paying an expediter to stand in a line that is an online form.
How does Colorado's paper path compare with other states?
Lighter than contractor-board states. Heavier than the myth that you just start.
You are not pulling a statewide trade card. You are stacking SOS, DOR, city, insurance, and (if you hire) CDLE. That is more paper than a hobby. It is less paper than a licensed plumber.
If you chase winter accounts out of state, read the local guide before you invoice. Storefront windows board in Illinois, Florida, and Georgia do not copy Colorado's quiet DPO list. Neither does Alabama, if you ever compare Sun Belt packets with a Denver clerk's form.
Keep one folder per city. The state will not merge them for you. A clean Colorado SOS record will not satisfy a Florida local tax license, and the reverse is also true.
What should you confirm before you take the first key?
Call four places with the same questions every time the form looks old.
Secretary of State: current entity or trade name fee, and whether your filing actually posted. [2]
DOR and the city tax desk: is this wash taxable at this address, and do you need their license first. [3] [4]
City clerk: general business license, home occupation if the tank lives at the house, and any sidewalk or pedestrian-mall rules. [10] [13]
CDLE and your broker: workers' comp if you have help, COMPS if you have help, FAMLI if you have help, and a COI that matches the building's vendor list. [6] [11] [12]
StorefrontWash is an independent publisher, not a law firm and not a service company. No approval or timing guarantees. If the paper is done and you still need a simple pole kit, start at /start.
Confirm the live pages. Then wash the door glass like you want the Tuesday route.
Frequently asked questions
Do you need a license for storefront windows in Colorado?
No statewide occupational license exists for storefront window cleaning. Colorado's Division of Professions and Occupations does not list the trade. You still need ordinary business paper: SOS entity or trade name if you use one, a DOR account if invoices are taxable, and the city or county business license where you work. Confirm each office's current form.
How much does storefront windows cost in Colorado?
Paper is the cheap part. Confirm live SOS and city fees rather than trusting an old number. An IRS EIN is free. Insurance, a vehicle, water, and poles are the real spend. Nobody publishes a solid public table of Colorado storefront stop prices, so price glass, frequency, hard water, and parking. Skip license expediters.
How long does storefront windows take in Colorado?
State e-filings can be quick. City licenses and building vendor packets usually take longer. Nobody should guarantee an approval clock. The wash itself is often 20 to 45 minutes for a small retail front once you know the stop. First visits and winter ice add time. Confirm processing notes on the SOS and DOR pages when you file.
Can I run a Colorado storefront route as a sole proprietor?
Yes. You can invoice under your legal name without forming an LLC. Many first routes start that way. Property managers still ask for a W-9, an EIN, and a certificate of insurance. File a trade name with the Secretary of State if you want a shop name on the invoice that is not your legal name. Confirm the current SOS fee.
Does Denver require a general business license for window cleaners?
Denver runs a general business license through Excise and Licenses. If you keep standing accounts in Denver, read that page and apply. Confirm the current fee and any home-occupation rules if you store a tank at a house. A Denver license does not cover Boulder or other cities. Ask each clerk where the glass sits.
Do I need workers' comp if I wash storefronts alone?
If you have no employees, you often sit outside the usual employer mandate, but confirm your exact setup with CDLE and your carrier. Hire a helper and coverage is no longer a maybe. Solo LLC members are a fact pattern you confirm, not a forum guess. Property managers may still require liability insurance even when workers' comp does not apply.
Is a water-fed pole regulated by a Colorado board?
No. There is no state board card for a pole, a squeegee, or pure water resin. OSHA still applies if you leave the sidewalk or work near fall edges. Cities may care about sidewalk obstruction and wash-water discharge. The pole is equipment. The paper is SOS, DOR, the city, and insurance.
Do I charge Colorado sales tax on a window cleaning invoice?
Do not guess. The state rate is 2.9 percent on listed taxable items, plus local tax. Window cleaning is a service, and home-rule cities can tax services the state does not. Call DOR and the city tax desk with a sample invoice. Look up the address on DOR's sales tax rates page before you print a tax line.
What OSHA height triggers fall protection on commercial glass?
In general industry, OSHA's walking-working surfaces rule triggers fall protection at 4 feet above a lower level, with the methods listed in 29 CFR 1910.28. That is far below a high-rise. Read 29 CFR 1910.140 on personal fall protection before you step onto a canopy or use a ladder over a sidewalk.
Can I use an out-of-state address and still wash in Fort Collins?
You can live elsewhere and still take Colorado stops, but Colorado paper still applies where you do business. Expect city licensing questions, a DOR conversation, and insurance that names Colorado operations. Do not assume a home-state contractor number substitutes. Confirm with the Fort Collins clerk and DOR before you invoice.
What does FAMLI have to do with a two-person route?
Colorado's Family and Medical Leave Insurance program attaches once you have employees. Premiums and registration are not optional hobbies. Confirm current employer duties on the FAMLI employers page. A true solo operator does not run a FAMLI payroll. Add a second person and you need the CDLE stack, more than extra towels.
Do malls and property managers require more than the city license?
Almost always. They want a certificate of insurance, additional insured wording, a W-9, and sometimes a vendor portal. Those packets delay first invoices more than the Secretary of State does. The city license gets you legal to operate. The COI gets you the keys. Ask for the vendor list before you quote the glass.
How often does Colorado change the minimum wage I pay a helper?
CDLE adjusts the state minimum wage every year. Confirm the current dollar on the CDLE minimum wage page before you set a helper's rate. COMPS also sets overtime and other pay standards. Do not copy a wage number from an old blog. If you have no employees, this page is still worth a bookmark for the day you hire.
Sources
- Colorado Division of Professions and Occupations, Professions list: Colorado DPO publishes the professions it licenses; window cleaning is not a statewide DPO license type
- Colorado Secretary of State, Business forms: Colorado business entities and trade names are filed with the Secretary of State using the published business forms
- Colorado Department of Revenue, Sales and use tax licenses: Businesses that make taxable sales in Colorado obtain a sales tax license through DOR
- Colorado Department of Revenue, Sales tax rates: Colorado's state sales tax rate is 2.9 percent, with local taxes added by jurisdiction
- Internal Revenue Service, Apply for an EIN online: Applying for an EIN is a free service offered by the Internal Revenue Service
- Colorado Department of Labor and Employment, Workers' compensation: Colorado employers with employees must address workers' compensation coverage under CDLE oversight
- Colorado Department of Labor and Employment, Minimum wage: Colorado's state minimum wage is set and updated by CDLE; confirm the current rate on that page
- OSHA, 29 CFR 1910.28 Duty to have fall protection: General industry fall protection is required at 4 feet above a lower level on unprotected sides or edges
- City and County of Denver, Business licenses (Excise and Licenses): Denver issues general business licenses through the Department of Excise and Licenses
- Colorado Department of Labor and Employment, COMPS Order: Colorado employers must follow the Colorado Overtime and Minimum Pay Standards Order
- Colorado FAMLI, Employers: Colorado employers with employees have Family and Medical Leave Insurance duties listed on the FAMLI employers page
- City of Boulder, Business licenses: Boulder requires its own local business license process separate from the state
- OSHA, 29 CFR 1910.140 Personal fall protection systems: OSHA sets personal fall protection system rules that apply when workers use harnesses and related gear