The Client
Lone Star Pro Services is a mold remediation and air duct cleaning company in Houston; we ran their Google Ads from May 2020 to December 2025 and grew real leads from 4 a month to 196. They serve Houston and the surrounding cities, including Katy, Cypress, Spring, The Woodlands, Sugar Land and Pearland, with mold inspection and remediation, water damage cleanup and air duct cleaning.
We launched our first campaign in May 2020. In the first month it produced 4 leads.
4 leads in May 2020. 196 in August 2024.
The Challenge
- High-ticket, high-anxiety jobs. A homeowner who finds mold wants a certified company fast, and compares only a few.
- Houston is huge. Dozens of suburbs, each with its own searches and competitors, spread across one of the largest metro areas in the country.
- Informational noise. Mold searches mix buyers with people looking for health information, test kits and DIY cleaning.
- Two different services. Air duct cleaning and mold remediation attract different buyers at very different job values.
What We Built
1. Air Duct Cleaning Search
We started in May 2020 with an air duct cleaning Search campaign for the Houston area. An HVAC campaign was tested and paused when it didn't produce leads.
2. Separate Mold Remediation Campaigns
In mid 2021 we split out mold remediation into its own Search campaigns. Mold remediation search became the largest campaign in the account, and monthly leads grew from single digits to 30 within months.
3. Performance Max and Business Profile Campaigns
From late 2022 we added a Business Profile campaign for local map searches, then a Performance Max lead campaign in 2023, alongside Local Services Ads.
4. Real Leads Only
Calls from ads, calls from the website, form submissions and Business Profile and Local Services leads are counted. Button taps and "contact us" clicks are not. Over the engagement: about 1,800 calls from ads, 1,042 calls from the website, 487 form submissions and 226 Business Profile and Local Services leads.
5. Daily Optimization via Ad Campaign Concierge™
Every campaign was reviewed daily through our proprietary Ad Campaign Concierge™ system: search-term mining against informational and DIY queries, A/B tests on bidding and match types, and budget moved to the services and suburbs producing calls.
The Results
- 2020 (May to December): 40 leads
- 2021: 162 leads
- 2022: 419 leads
- 2023: 721 leads
- 2024: 1,219 leads, 30 times the first year
- 2025: 995 leads, 18 times our first twelve months
- Leads a month: from 4 in May 2020 to 30 by late 2021, 83 in August 2023, and 191 and 196 in July and August 2024
First Year vs Last Year
Our first twelve months produced 55 real leads. Our last twelve produced 995, eighteen times as many.
What Improved
| Metric | First 3 months (May to Jul 2020) | Last 3 months (Oct to Dec 2025) | Change |
|---|---|---|---|
| Real leads a month | 6 | 90 | 15x |
| Cost per lead | $336 | $83 | 75% lower |
| Conversion rate (leads per click) | 5.1% | 20.8% | 4x |
| Click-through rate | 1.3% | 7.7% | 5.8x |
At the peak, across 2024, a lead cost $65.
Every Lead
3,556 real calls and forms from May 2020 to December 2025.
Key Takeaways
- Split services by job value. Giving mold remediation its own campaigns is what turned a small account into a lead engine.
- Google Ads for mold remediation is a long game. Growth compounded year after year, from 40 leads in 2020 to 1,219 in 2024.
- Local placements matter. Business Profile and Local Services leads added hundreds of calls from map searches.
- Count only real leads. Clicks on "contact us" buttons are not customers. Bidding on real calls and forms is what lifted the conversion rate from 5.1% to 20.8% and cut the cost per lead from $336 to $83.
Frequently Asked Questions
How much should a mold remediation company spend on Google Ads?
Lone Star Pro Services started at about $3,000 a month in 2020 and ran at about $9,500 a month through 2023. In 2024 it averaged about $6,600 a month and produced 1,219 leads, its best year.
What does a mold remediation lead cost on Google Ads?
In the first three months (May to July 2020) a lead cost $336. Across 2024 it cost $65, and in the last three months of our engagement (October to December 2025) $83.
How long does Google Ads take to work for a mold remediation company?
The account produced 4 leads in May 2020 and 30 a month by late 2021, after we added mold remediation campaigns. It passed 50 a month in 2022, 80 in 2023 and hit 191 and 196 in July and August 2024.
What conversion rate can a mold remediation company expect from Google Ads?
Lone Star's ads turned 5.1% of clicks into real leads in the first three months (May to July 2020) and 20.8% in the last three months of our engagement (October to December 2025), about one lead for every five clicks.
About This Campaign
This account was managed daily through Ad Campaign Concierge™, our proprietary optimization system for lead generation.
Industry: Home Services: Mold Remediation & Air Duct Cleaning Platforms: Google Ads (Search, Performance Max, Smart, Local Services Ads) Location: Houston, TX Account Duration: May 2020 to December 2025
Leads are calls from ads, calls from the website, form submissions and Business Profile and Local Services calls, messages and bookings as tracked in Google Ads. Button taps and "contact us" clicks are excluded. Amounts in US dollars.