Google Ads vs. LSA vs. SEO: How to Split Your Marketing Budget

Most contractors put 100% of their marketing budget into one channel. All Google Ads. All LSAs. All SEO. Then they wonder why growth stalls or costs climb when that single channel hits diminishing returns.

A BrightLocal survey found that the average small business spends $500-5,000/month on digital marketing, but businesses that diversified across 3+ channels generated 40% more leads per dollar spent than those relying on a single source. The question isn’t which channel is best — it’s how to split your budget across all three.

What each channel does

Google Ads delivers leads immediately. You turn on the campaign, set your budget, and start getting clicks today. CPCs average $20-30 for home services and you pay for every click whether it converts or not. Best for: emergency services, high-value jobs, immediate lead flow.

Local Services Ads (LSAs) charge per lead instead of per click. Cost per lead runs $40-95 depending on trade (HVAC $45-85, plumbing $40-75, roofing $50-95). The Google Guaranteed badge builds instant trust. You have limited control over targeting and messaging. Best for: phone-driven businesses, emergency services, contractors without PPC expertise. Read the full LSA vs. Google Ads comparison.

SEO is a long game. It takes 6-12 months to produce meaningful organic traffic, according to Ahrefs’ analysis of page ranking timelines. But once established, organic leads cost $15-30 per lead — a fraction of paid channels. Best for: long-term cost reduction, establishing authority, reducing dependence on paid advertising.

Budget allocation by revenue tier

Under $500K revenue

Recommended split: 40% LSAs, 30% Google Ads, 20% SEO, 10% other

At this stage, you need leads now. LSAs deliver the fastest results with the least complexity. Google Ads fill gaps LSAs don’t cover. SEO gets a modest investment to start building organic visibility for the long term.

On a $2,000/month marketing budget, that’s $800 for LSAs, $600 for Google Ads, $400 for SEO (likely a basic local SEO package or DIY), and $200 for other channels like Nextdoor or Facebook.

An electrician on r/sweatystartup started at this exact split on a $1,800/month budget. LSAs produced 8-10 leads per month at $55 each. Google Ads added 5-6 leads at $110 each. SEO produced nothing for the first 6 months, then slowly added 3-4 organic leads per month by month 9. By his 12th month, organic leads were his cheapest source at $22 per lead.

$500K-$2M revenue

Recommended split: 30% LSAs, 30% Google Ads, 30% SEO, 10% other

At this stage, you’re established and can afford to invest more heavily in SEO. Your Google Ads campaigns have data to optimize. LSAs are delivering consistently. SEO is your path to reducing overall cost per lead.

On a $5,000/month budget, that’s $1,500 each for LSAs, Google Ads, and SEO, with $500 for testing other channels.

A plumbing company owner on ContractorTalk described this phase: his Google Ads cost per lead was $95, LSA cost per lead was $62, and organic cost per lead had dropped to $28 after 14 months of SEO investment. Shifting budget toward SEO didn’t reduce his total lead volume — it reduced his average cost per lead from $85 to $63 across all channels.

Over $2M revenue

Recommended split: 20% LSAs, 25% Google Ads, 35% SEO, 20% other (social, direct mail, referral programs)

At this stage, SEO should be your largest investment. You’ve built domain authority, your organic rankings are producing leads, and every dollar in SEO generates cheaper leads than paid channels. Google Ads and LSAs fill gaps and drive immediate demand when needed.

John Wilson of Wilson Companies has discussed on the Owned and Operated podcast how his multi-location operation shifted budget toward organic and content marketing as the company grew past $5M. His cost per lead from organic search was one-fifth of his Google Ads cost per lead — but organic took 18 months to ramp up. The investment pays off at scale.

Running Google Ads and LSAs together

Running both channels simultaneously lets you appear twice on the same search result page. The homeowner sees your LSA at the top with the Google Guaranteed badge, then sees your Google Ad below it. Two impressions. Two chances to get the click.

Allocate budget between the two based on what each produces. Start with a 50/50 split, then track cost per customer from each source and shift money toward whichever performs better in your market.

Some contractors find LSAs dominate for emergency keywords while Google Ads perform better for planned projects. Others see the opposite. The only way to know is to run both, measure, and adjust.

An HVAC contractor on r/hvac ran both for 6 months and found that his LSA cost per customer was $185 compared to $310 from Google Ads. He shifted to a 65/35 split favoring LSAs. But he kept Google Ads running because they drove website traffic that converted through remarketing weeks later — value that didn’t show up in direct attribution.

SEO: the long-term play

SEO feels like throwing money into a void for the first 6 months. No immediate leads. No visible ROI. Most contractors abandon it before it starts producing.

Ahrefs found that only 5.7% of newly published pages reach the top 10 of Google within a year. But the pages that do rank generate leads for years at near-zero marginal cost. A blog post or service page that ranks #3 for “plumber [your city]” delivers free traffic indefinitely.

For home service SEO, the highest-value investments are Google Business Profile optimization, local service pages for each city you serve, and review generation. A BrightLocal study found that businesses with 50+ reviews and complete GBP profiles appear in the Local Pack 2.5x more often than those with fewer than 10 reviews.

Start SEO early even if you can’t invest heavily. Claim and optimize your Google Business Profile. Build one service page per trade per city. Ask every customer for a review. These foundational steps take months to compound but cost little upfront.

When to reallocate

Review your channel split quarterly. The right allocation changes as your business grows, markets shift, and channel performance evolves.

Shift toward a channel when: Cost per customer is dropping. Lead volume is growing. Close rates from that channel are above your average.

Shift away from a channel when: Cost per customer is climbing. Lead quality is declining. You’re seeing diminishing returns on additional spend.

A roofer on r/sweatystartup tracked all three channels for a full year. His Google Ads CPA started at $280 and climbed to $340 as competition increased. His LSA CPA held steady at $220. His SEO CPA dropped from $150 to $45 as his rankings improved. By month 12, he’d shifted from a Google Ads-heavy split to putting 40% of budget into SEO content and link building — his cheapest and most sustainable lead source.

The mistake of single-channel dependence

Google changes its algorithm, ad auction mechanics, and LSA policies constantly. Contractors who depend entirely on one channel are one update away from a revenue crisis.

In 2023, Google expanded LSA categories and changed how rankings were calculated. Contractors who relied solely on LSAs saw lead volumes swing by 30-50% overnight with no recourse. Those who had diversified into Google Ads and SEO absorbed the hit and adjusted.

Build a marketing portfolio the same way you’d build a financial portfolio. Diversify across channels so no single change can tank your business.

Tracking across channels

The biggest challenge with multi-channel marketing is attribution. Which channel produced the lead? Which produced the customer?

Use a single CRM for all lead sources. Tag every lead with its origin channel. Track not just cost per lead, but cost per booked customer from each channel. A channel that produces cheap leads with a 10% close rate might be more expensive per customer than a channel with expensive leads that close at 40%.

Call tracking assigns unique phone numbers to each channel so you know exactly where calls originate. UTM parameters tag website traffic from Google Ads and organic search. Without these tracking layers, you’re guessing at performance.

Understanding how marketing performance is measured ensures your budget decisions are based on actual revenue data, not gut feeling. The contractors who track rigorously allocate smarter and waste less — regardless of how much they spend.