Remarketing guide

Remarketing shows your ads to people who already visited your website or engaged with your business, but did not buy or enquire. A small piece of code, the Google tag or the Meta pixel, adds visitors to audience lists, and you can then show them tailored ads on Google, YouTube, Facebook, Instagram and other sites for a set period. Done well, it reminds people who were genuinely interested; done badly, it follows everyone around the internet for months with the same banner.

The difference comes down to three decisions: which visitors you follow, for how long, and what you say to them. This remarketing guide walks through each, plus the consent rules that apply in Canada.

Why remarketing works

Most people do not buy on the first visit. They compare, ask a partner, check their budget or simply get distracted. For anything above an impulse purchase, a first visit is the start of a decision, not the end. Remarketing keeps you present during that time, and because the audience already knows you, these ads often convert at a lower cost than ads to strangers.

It does not replace campaigns that bring new visitors. A remarketing list only grows as fast as your traffic. Think of it as the second half of a funnel whose first half is Search, social ads or SEO.

Five audiences worth building

Not all visitors are equal. Build separate lists so you can bid and speak differently:

1. High-intent visitors: people who viewed your pricing, quote or booking page but did not submit. They are closest to a decision.
2. Cart or form abandoners: for stores, people who added to cart; for services, people who started a form. Often the most profitable list.
3. Service-specific visitors: people who looked at one service, so you can show an ad about that service, not a generic one.
4. Engaged social audiences: people who watched most of a video or interacted with your Instagram or Facebook profile.
5. Past customers: a customer list uploaded with consent, for repeat services, seasonal reminders or new products. My article on winning back past customers covers the email side of this.

And one list to exclude: people who already converted recently. Showing "Book your free estimate" to someone who booked yesterday wastes money and looks careless.

How long to follow people

The membership duration should match how long your customers take to decide:

An emergency plumber gains little from remarketing; nobody browses for a burst pipe and comes back in three weeks. A kitchen company, on the other hand, can follow a visitor for months, as decisions often involve the whole household and several quotes.

Frequency and fatigue

The fastest way to turn remarketing into irritation is high frequency with one creative. Set frequency caps where the platform allows it, rotate several ads, and refresh them every few weeks. On Meta, watch frequency in reports; when the same people see the same ad many times and results drop, it is time for new creative. I wrote more about that in ad creative that stops the scroll.

What to say at each stage

Repeating your first ad rarely works. Answer the question that stopped them:

• Viewed pricing: explain what is included, show a payment option or a guarantee you can actually offer, like a clear warranty.
• Started a form: a reminder with a simpler way to contact you, such as a call or a message.
• Viewed a service: a short case or photos of finished work in that service.
• Watched a video: the next step, such as booking a consultation.
• Past customers: something genuinely useful: seasonal maintenance, a new service, a reminder that it has been a year.

Where to run it

Google offers remarketing through Display, YouTube and Demand Gen campaigns, and you can add your lists to Search campaigns to bid more for returning visitors. Performance Max uses your lists as signals. See the Google Ads remarketing service page for how I set this up.

Meta builds audiences from the pixel, your Facebook and Instagram engagement and customer lists. For many small businesses, Meta is the cheaper place to start. There is a separate page on remarketing with Facebook and Instagram.

For the pixel to track reliably today, pair it with the Conversions API; my Meta pixel and Conversions API setup covers both.

Consent and privacy in Canada

Remarketing depends on tracking, so it falls under privacy law. PIPEDA expects meaningful consent and a clear explanation in your privacy policy. Quebec's Law 25 sets a stricter standard for tracking technologies, and BC and Alberta have their own private-sector acts. A consent banner tied to Google Consent Mode and the Meta pixel's consent settings is the practical baseline. The cookie consent in Canada article explains the details. Sensitive categories, especially health, face extra platform restrictions.

How much to spend on it

Remarketing budgets are naturally capped by audience size: you cannot show ads to more people than are on your lists. For most small businesses it ends up as a modest slice of total ad spend, with the bulk going to campaigns that bring new visitors. Start small, watch frequency and cost per enquiry, and only increase the budget if the lists are large enough to absorb it without showing the same people the same ad over and over.

Measuring it honestly

Remarketing reports can flatter themselves. View-through conversions count people who saw an ad and later converted, even if they would have come back anyway. Look at click-based results first, compare periods with and without remarketing, and check whether total enquiries actually rose. Then pair your ads with a solid email follow-up sequence; the two together usually do more than either alone.

If you want someone to build the audiences, set the windows and write the ads, a free 30-minute call is the easiest way to see what fits your business.