November 24, 2025

9 minutes

The Difference between SEO and SEM (And How to Get the Most Out of Both)

SEO or SEM: When Customers Can't Find You, They Can't Buy from You

SEO, SEM, Google Ads, SEO optimization, search engine marketing…these terms get thrown around constantly, but rarely does anyone explain what they actually mean. You've probably heard that you "need SEO" or that "Google Ads works great," but no one's taken the time to break down the real differences, the actual costs, or which one makes sense for a business like yours. 


That's what this article does. We'll give you clear, practical answers: what each strategy actually is, how much they cost, how long they take to work, and most importantly, how to use them together to get more customers finding you online.


Businesses that combine both strategies see 45% better results in their competitive research and can dominate search results in ways that using just one approach never could. Let’s break down the fundamentals so you can make smart decisions about your marketing budget.

What’s SEO and How Does It Work?

SEO gets your business showing up in regular Google search results without paying for each click. We'll explain the three key elements that make it work, how long it actually takes to see results, and how to get the best out of it.

What’s SEM and How Does It Work?

SEM means paying for ads that put you at the top of search results instantly. Find out how it works, how Google decides which ads to show, and how to get great results from it.

Best Ways to Use SEO and SEM for Your Small Business

This is where strategy matters. Learn exactly when to use SEO versus SEM, what the best practices are for maximum results, and the common pitfalls to avoid if you want to get the most out of your marketing efforts.

Ready to understand how this actually works for businesses like yours? Let's dig in.

What’s SEO and How Does It Work?

Great News: You’re Already Using It (Kinda)

If you've got a website, you're already doing some basic SEO, you just don't know it yet. When you write about what you do using the same words your customers use, you're accidentally helping Google understand your business. 


That plumber talking about "emergency drain repairs" or that restaurant mentioning "family-style Italian dining"? They're using keywords (the exact terms people type into Google when searching for services you offer). 


The difference between accidental SEO and intentional SEO is understanding how to do it on purpose, consistently, and in ways that actually move the needle for your business.

The Three Key Elements That Make SEO Work

SEO boils down to three things working together: on-page SEO, technical SEO, and off-page SEO. On-page SEO means making sure each page on your site clearly explains what you do, using words people actually use when they’re searching for what you offer. Your homepage, service pages, and blog posts need to match how customers talk about their problems.


Technical SEO is the behind-the-scenes stuff: making your site load fast (under three seconds), work perfectly on mobile phones, and be secure. Google cares about this because customers do. Off-page SEO is what others say about you online. When reputable sites link to yours or customers leave reviews, Google sees it as proof you're legitimate. Get all three working together, and you're playing the game right.

Why SEO Takes Time (And Why That's Actually Good)

Here's the reality: SEO takes 6 to 12 months before you see real results, with peak performance hitting in years two and three. That sounds like forever when you need customers now, right? But here's why slow is actually your advantage. Google doesn't trust new content immediately. It watches to see if people find it helpful, if other sites reference it, and if it stays relevant over time. 


This gradual process means once you do start ranking, it's much harder for competitors to knock you off. You're not renting visibility like with ads; you're building an asset that keeps working without ongoing payments. Think of it like planting a tree. You water it for months, seeing nothing, then suddenly you've got shade for years.

Real Ways to Get SEO Working for Your Business

  • Find the keywords your customers actually use
    Think about how people search for your services; not industry jargon, but real phrases like "leaky faucet fix" or "best pizza delivery near me." Use Google's search bar. It auto-suggests what people are typing. Those suggestions? That's free keyword research.
  • Use keywords naturally in the right places
    Put your main keyword in your page title, your first paragraph, and a few headings. But write like a human first. If you're cramming "best plumber Montreal" into every sentence, you've gone too far. Google's smart enough to understand synonyms and related terms.
  • Make your site fast and mobile-friendly
    Over 60% of searches happen on phones. If your site takes more than three seconds to load or looks broken on mobile, people leave, and Google notices. Test your site on your own phone. If you're frustrated, so are your customers.
  • Create content that answers real questions
    What do customers ask you all the time? "How much does it cost to...?" "What's the difference between...?" Write blog posts or FAQ pages answering those questions in plain language. Each answer is a chance to rank for that specific search.

The SEO Bottom Line

The businesses winning with SEO aren't doing anything magical; they're just being consistent about the basics, while their competitors keep starting and stopping. Now let's talk about the other side of the equation: SEM, which works fast but requires ongoing investment.

What’s SEM and How Does It Work?

Skip the Waiting, and Pay for Your Spot at the Top

SEM is the opposite of waiting around. You pay Google to put your business at the top of search results right here, right now. Someone searches "emergency plumber," your ad shows up first, they click, they call. It's that direct. 


The trade-off? You're paying for each click, and the second you stop paying, you stop showing up. But when you need customers fast—launching a new service, filling your schedule during a slow month, or just tired of being invisible online—SEM gets you there. Forget about patience and organic growth; it’s all about putting yourself in front of people who are actively looking for what you offer.

How Google Ads Works

Google Ads works on a pay-per-click (PPC) model, meaning you only pay when someone actually clicks on your ad and visits your website. Your ad can show up a thousand times, but if nobody clicks, you pay nothing. This is different from traditional advertising, where you pay just to have your ad exist (like a billboard or newspaper ad).


Here's how it works: You pick the keywords people search for, like "roof repair" or "Italian restaurant downtown", and tell Google the maximum you're willing to pay for each click. The average cost per click is around $2.69, but it varies wildly by industry.


You set a daily budget (say, $20), and once that's spent, your ads stop for the day. So you never accidentally blow your budget. Google advertising runs on an auction system: every time someone searches your keyword, Google instantly decides which ads to show based on your bid, your ad quality, and how relevant you are to that search.

How Google Decides Which Ads to Show (AKA What’s a Quality Score)

Google doesn't just show the ads from whoever pays the most. They use something called Quality Score (basically, how relevant and helpful your ad is). It's based on three things: whether people actually click your ad (expected click-through rate), how well your ad matches what someone searched for (ad relevance), and whether the page people land on after clicking your ad delivers what the ad promises (landing page experience). 


A high Quality Score means you pay less per click and your ads show up more often. So two businesses bidding the same amount? The one with the better ad wins. This is why a plumber with a specific ad about "24-hour emergency service" beats a generic "plumbing services" ad every time.

Best Tips to Get Started with Google Ads (the Smart Way)

  • Pick one service to promote
    Don't try to advertise everything at once. Focus on your most profitable service or the one you want to book more of.
  • Write an ad that speaks to the problem
    Instead of "Professional Plumbing," try "Burst Pipe? We're There in 30 Minutes." Be specific about what you solve.
  • Send clicks to a specific landing page
    Don't send everyone to your homepage. If your ad is about emergency service, the landing page should be about emergency service with a big phone number.
  • Set a small daily budget
    Even $15-20 gets you started. You can always increase it once you see what's working.
  • Use location targeting
    Only show ads to people in your actual service area. No point paying for clicks from people 100 kilometres away.

Speed over Patience

You're not waiting for Google to notice you organically; you're buying your way to the top. Now here's where it gets interesting: when you combine SEM's instant visibility with SEO's long-term staying power, that's when small businesses really start dominating their local markets.

Best Ways to Use SEO and SEM for Your Small Business

The Real Magic Happens When You Combine Both

You don’t have to choose. The businesses that show up everywhere aren't accidentally doing both SEO and SEM. They're strategically using each one for what it does best. 


SEO builds your foundation and keeps customers coming for years. SEM fills gaps, tests ideas, and brings customers today. Trying to pick one is like asking whether you need a hammer or a screwdriver; it depends on what you're building. Let's talk about when to use each, how to make them work together, and the mistakes that waste money so you can avoid them.

When to Use SEO vs When to Use SEM

Use SEM when you need results now: launching a new service, filling your schedule during slow season, or testing whether people actually want what you're offering. It's perfect for competitive keywords where you're not ranking organically yet. Use SEO when you're thinking long-term: building authority in your area, establishing yourself as the go-to business, and creating traffic that doesn't stop when your ad budget runs out. 


Start with a small SEM budget to get immediate customers while you build your SEO foundation. As your organic rankings improve over 6 to 12 months, you can reduce ad spend or shift it to promote new services. Remember, businesses that combine both see 45% better results than those using just one approach.

Best Practices for Combining Both Strategies

  • Share keyword data between strategies
    If certain keywords convert well in your ads, create SEO content around them. If you're already ranking #1 organically for a keyword, you probably don't need to run ads for it.
  • Use SEM to test, then apply to SEO
    Test different headlines and messaging in your ads; you'll get feedback in days. Take the winners and use them in your SEO content, page titles, and meta descriptions (the summarized text that appears underneath a page title on search engines).
  • Optimize landing pages for both
    Make sure pages load fast, work perfectly on mobile, and clearly answer what people searched for. A page that converts well for paid traffic will also rank well organically.
  • Track everything separately
    Use different tracking for SEO and SEM so you know exactly what's working and what each channel costs you per lead.
  • Target different customer stages
    Use SEM for "ready to buy now" searches like "emergency plumber" and SEO for earlier-stage searches like "how to tell if I need a new roof." Cover the whole journey.
  • Dominate the entire search page
    The goal is for you to own the top of the search results with both your ad and your organic listing.

Common Pitfalls That Waste Money

  • Don't compete against yourself
    If you're ranking #1 organically for a keyword and also running ads for it, you're paying for clicks you'd get for free. Save that ad budget for keywords where you're not ranking yet.
  • Stop sending everyone to your homepage
    Create specific landing pages that match what people searched for. If your ad is about emergency service, the landing page should be about emergency service.
  • Fix your mobile experience
    Over 60% of searches happen on phones, and 53% of mobile users abandon sites that take more than three seconds to load. Test your site on your own phone.
  • Don't set it and forget it
    Check your campaigns weekly, especially in the first month. Markets change, competitors adjust, and you need to stay on top of what's working.
  • Make your ads specific
    Generic ads like "Professional Plumbing Services" get ignored. Specific ads like "Burst Pipe? 24/7 Emergency Response" get clicks.

Putting It All Together

SEO is the long game that pays off for years, SEM is the fast track that works today. If that still feels like a lot to handle, don’t worry. There are people who track keywords, monitor campaigns, adjust bids, and optimize pages every single day so you don't have to.

Be There When Your Customers Are Searching for You

Now, you know the difference between SEO and SEM, and how to use them to get the most out of your marketing. But here's what we've learned after helping thousands of Canadian small businesses get found online: you don't need to become a digital marketing expert to benefit from it. 


You need a partner who gets it. Someone who tracks what's working, adjusts what isn't, and translates all the jargon into actual customers walking through your door. At Ubiweb, we handle the technical stuff so you can focus on your business and reap the benefits of your hard work.

Ready to show up fast for the long haul? Reach out!

Talk to us

Sources

Mobile Device Website Traffic Statistics (2025 Trends), Tekrevol, 2025

https://www.tekrevol.com/blogs/mobile-device-website-traffic-statistics/


Marati Husna, Boost Your ROI: 7 Proven Strategies for Combining SEO & SEM, Talentport, 2023

https://www.talentport.com/seo/combine-seo-sem-to-boost-roi


Connor Lahey, 29 Eye-Opening Google Search Statistics for 2025, Semrush Blog, 2025

https://www.semrush.com/blog/google-search-statistics/