Quick Answer
Not all of them. Legitimate companies still sell pest control, solar, security systems, and home services door to door. However, several categories (especially "magazine subscription crews," roofing storm-chasers, and unsolicited utility "rate" reps) are well documented FTC and BBB scam patterns.
The best rule: never sign or pay anything at the door. The FTC Cooling-Off Rule gives you three business days to cancel most home solicitation sales of $25 or more, so any "today only" pressure is a red flag.
Categories that are usually legitimate
Pest control (Aptive, Terminix franchises), solar (Sunrun, SunPower dealers), home security (ADT, Vivint), gutter installers, and lawn care companies do real door-to-door sales every summer. They typically follow up with a written contract, a licensed installer visit, and a normal cancellation window.
Categories with frequent scams
The FTC and Better Business Bureau flag four recurring patterns: traveling magazine sales crews (often young people transported from city to city under abusive conditions); roofing "storm chasers" who appear after hail or wind events and demand insurance information; unsolicited "energy rate" or "supplier switch" reps; and fake meter readers or utility "safety inspectors" who use the visit to gain entry or pitch high-cost service plans.
Red flags at the door
Watch for: no company-branded vehicle or shirt; refusal to leave written materials; "today only" pricing; demand for a deposit or full payment on the spot; asking to come inside without an appointment; requests to see your utility bill or insurance policy; or pressure to sign before you read.
Your legal protection
The FTC Cooling-Off Rule (16 CFR Part 429) gives buyers three business days to cancel most door-to-door sales of $25 or more for home sales, or $130 or more elsewhere. The seller must tell you about this right in writing and provide a cancellation form. Skipping that disclosure is itself a violation.
How to handle a rep at your door
Ask for ID, a business card, and the company's state license number. Tell them you do not make decisions at the door and will research and call back. A legitimate rep will accept that. A scammer will escalate pressure or insist the offer expires today.
If you have already been scammed
Cancel in writing within three business days using the Cooling-Off Rule. File complaints with your state attorney general, the FTC at reportfraud.ftc.gov, and the BBB. If you gave bank or card info, contact your bank immediately and consider freezing your credit.
Bottom line
Door-to-door is a legitimate sales channel that bad actors abuse heavily. Slow the conversation down, never pay at the door, and use your three-day cancellation right if you do sign.
State-by-state notes on the Cooling-Off Rule
The federal FTC three-day rule is a floor, not a ceiling. California, New York, Massachusetts, and several other states extend cancellation rights for specific products (home improvement contracts, hearing aids, alarm systems). When a rep cites "the contract is final at signing," that is almost never true for in-home solicitation. Always look up your state attorney general's door-to-door sales page for specifics.
Solar door-to-door: legitimate company, often deceptive script
Major solar installers do sell door to door, but the scripts pushed onto subcontracted reps frequently misrepresent monthly savings, lease vs ownership terms, and tax credit eligibility. The FTC and several state AGs have pursued enforcement against bait-and-switch solar lease pitches. Never sign a solar contract at the door; require a follow-up in-home appointment with a written, itemized proposal.
How to verify a rep on the spot
Step inside, close the door, and look up the company on your state's contractor license board, the BBB, and Google reviews. A legitimate rep will gladly wait two to three minutes. A scammer will leave or escalate. That single habit prevents the majority of door-to-door losses.
How to file a complaint that actually gets action
File with the FTC at reportfraud.ftc.gov, your state attorney general's consumer protection office, and the Better Business Bureau. Include dates, names, what was said, what was signed, photos of any documents, and any payment records. Multiple complaints against the same company trigger investigations far faster than single reports.
Protecting elderly and vulnerable family members
Door-to-door scams disproportionately target seniors. Practical steps: install a "No Soliciting" sign (legally enforceable in many municipalities), set up a video doorbell so adult children can review interactions, and have a standing family rule that no contract gets signed without a 24-hour cooling period and a family phone call.
Final checklist before signing anything at the door
Verified license number on a regulator website. Written contract you have read in full. Three business day Cooling-Off Rule disclosure included. No deposit demanded. Cancellation form provided. If any of those five are missing, do not sign.
One sentence to remember
If the offer is good today, it is good tomorrow, and a rep who refuses to leave you alone for 24 hours is showing you exactly why you should never sign with them.
