Start with Google Ads if you need leads within 30 days or have under $1,500 a month to spend. Start with local SEO if you can wait two quarters and want a channel that keeps producing without per-click cost. Most contractors who can afford both should run them together.
The honest tradeoff
These are not competing philosophies, they are different instruments with different response curves.
Google Ads produces leads the day you turn it on and stops the day you turn it off. You rent the position. Cost per lead is roughly flat over time, and it rises as competitors bid more.
Local SEO produces nothing for months, then produces leads at a cost per lead that falls indefinitely as long as you keep the work going. You build an asset rather than renting placement.
Anyone selling you one by disparaging the other is selling what they happen to offer.
Where Local Services Ads change the math
For many trades, the highest-intent placement on the page is not organic and is not standard paid search. Local Services Ads sit above the map pack and above the search ads, and you pay per lead rather than per click.
Getting Google Guaranteed requires a background check and license verification that most competitors never finish, which is exactly why the placement stays winnable. If you are in a trade where LSAs are available and you have not completed the application, that is usually the highest-return hour available to you this week. More on that on our Google Ads and LSA page.
Cost per lead, honestly
Paid cost per lead is knowable on day one and stable. In competitive DFW trades, expect roughly $45 to $150 per lead on search, lower on LSAs, and higher in emergency categories where bids spike.
Organic cost per lead is unknowable at the start and drops over time. A $2,450 retainer producing 8 leads in month four is $306 per lead. The same retainer producing 45 leads in month twelve is $54. The number keeps improving as long as the work continues, which is the entire case for the channel.
The trap is judging organic on month-four cost per lead. That is like judging a mortgage on the first payment.
A decision framework
Budget under $1,500 a month. Ads first. Splitting a small budget across both means neither works. Get cash flow, then add SEO.
You need work in the next 30 days. Ads. SEO cannot help you with that and an agency that says otherwise is not being straight with you.
Budget $1,500 to $3,000 and you can wait a quarter. SEO first, because it is the channel that keeps paying. Add paid once organic carries some volume.
Budget above $3,000. Both. Paid funds the wait, organic lowers the blended cost per job. This is what most of our Market Leader clients run.
Highly seasonal trade. Both, timed deliberately. Build organic in the off-season so it is ranking before demand arrives, then layer paid on during the spike.
What people get wrong in both directions
Running ads to a homepage. The single most common way contractors waste ad budget. Dedicated landing pages per service typically cut cost per lead substantially.
Treating SEO as a one-time project. Rankings decay when the work stops, because competitors do not stop.
Turning off ads the moment SEO works. Owning both the ad slot and a map pack position on the same search meaningfully raises total clicks.
Not tracking calls. Without call tracking you cannot compare the two channels at all, which means every budget decision after that is a guess.