Ann Arbor
- Permit: Yes. The city defines SOLICITOR as anyone traveling place to place "seeking to obtain orders for the purchase of goods or services for future delivery or performance" — the exact activity of a door-to-door sales rep taking an order — and it is unlawful to solicit within city limits without first getting a license (§ 7:61, § 7:62).
- Fee: $45.00 per licensure period (6 months), not prorated, per the city's own solicitors-and-peddlers page. A 75% reduction applies only if the applicant is under 14 and expects less than $100 profit — not applicable to an adult sales rep (§ 7:67).
- Hours you may knock: 10:00 a.m. to official sunset. Soliciting or peddling at a private residence is barred before 10:00 a.m., after sunset, and at any time on a Sunday or a state or national holiday (§ 7:66(5)).
- Checked: 19 September 2026
Detroit
Partly read: the permit answer is sourced, but the fee or the hours could not be read from the city’s own pages.
- Permit: No door-to-door license was found.
- Fee: None found. Chapter 34 sets no fee for door-to-door sales because it has no such license.
- Hours you may knock: Not published. Chapter 34 sets no knocking hours for door-to-door sales.
- Checked: 19 September 2026
Grand Rapids
- Permit: Yes. The city code requires a Transient Merchant license before anyone engages in that business, and its definitions cover a door-to-door rep exactly: a Solicitor "travels from place to place and offers for sale, takes orders for or attempts to take orders for the retail sale of any goods, personal property or service whatsoever for future delivery," and a Peddler is anyone who travels place to place selling or taking orders at retail (§ 7.251, § 7.252).
- Fee: $333 application fee per applicant, non-refundable, per the city's Transient Merchant License page.
- Hours you may knock: 9:00 a.m. to 9:00 p.m., any day of the week, without a prior appointment; calling outside that window needs an actual appointment with the resident (§ 7.260; confirmed on the city's license page as "Door to door sales may only be made between the hours of 9:00 am and 9:00 pm").
- Checked: 19 September 2026
Sterling Heights
- Permit: Yes. The city defines ITINERANT MERCHANT to include anyone going house to house "who takes or attempts to take orders from consumers for sale of goods, wares and merchandise... for future delivery or for services to be furnished or performed in the future" (§ 39-2) — squarely covering a door-to-door rep who takes an order for future installation.
- Fee: $153.00 per solicitor, per the City Clerk's current application form. The code itself sets the fee by the city's annual appropriations ordinance rather than a fixed dollar figure in the chapter text (§ 39-5(4)).
- Hours you may knock: 9:00am to 8:00pm Standard Time, or 9:00am to 9:00pm Daylight Saving Time, per the City Clerk's application form. Chapter 39's own text sets no separate hours section; the license itself states "the time periods during which the license holder may solicit" (§ 39-5(3)).
- Checked: 19 September 2026
Warren
Partly read: the permit answer is sourced, but the fee or the hours could not be read from the city’s own pages.
- Permit: Almost certainly yes, but which of two licenses applies is not settled by the code text alone.
- Fee: $55.00 per applicant for a Route Salesman license, plus a required $1,000 surety bond, per the city's fee schedule (Chapter 18, § 18-18, item 36). A Peddler license, if that category applied instead, is also $55.00 per applicant (item 28) with no bond requirement in the text read.
- Hours you may knock: Not set specifically for route salespersons in the sections read. Peddlers are barred outside 9:00 a.m to 9:00 p.m. (§ 24-18), and charitable solicitors/canvassers face the same window under § 24-155 — but Article V (Route Salespersons, §§ 24-111–24-131) contains no equivalent hours section of its own.
- Checked: 19 September 2026
City not on this list? The City Clerk Call Sheet has the eight questions to ask any city.