Call-Only Ads: Get More Emergency Calls and Pay Less Per Booked Job

Call-only campaigns are a distinct ad type in Google Ads that appear exclusively on mobile devices and replace the website click with a direct phone call. When a homeowner taps a call-only ad, their phone dials your number immediately. There is no website visit, no landing page, no form. For HVAC contractors, plumbers, and electricians handling emergency calls, this is the closest thing Google Ads offers to a direct line to your dispatch desk.

Most contractors running Google Ads use standard responsive search ads (RSAs) that send clicks to a landing page. That works well for replacement estimates and planned projects where homeowners want to compare options before committing. It works poorly for emergency situations where someone whose furnace stopped working at 10pm wants a number to call, not a contact form. Call-only campaigns are built for that moment. Contractors running properly configured call-only campaigns for emergency services report booked-job cost per acquisition of $186 to $280, compared to $340 to $450 for standard search ads targeting the same emergency intent queries.

How Call-Only Differs from Standard Search

Standard search ads send the homeowner to a webpage. Call-only campaigns do not. The ad has two headlines, two description lines, and a business phone number. When the homeowner taps the ad on mobile, their phone app opens with your number pre-loaded and places the call. There is no URL, no website, no option to browse first.

This distinction matters for emergency conversion rates. A homeowner searching "emergency plumber near me" at midnight is not shopping. They have water on the floor. Every step between the ad tap and reaching a live dispatcher reduces the probability they book with you. Call-only removes every one of those steps. The trade-off: call-only campaigns cannot produce conversions during hours your phones go unanswered. A click on a standard search ad that hits voicemail still leaves the homeowner on your website with your contact information visible. A call-only ad that rings to a full voicemail box converts to nothing and costs you the full click price.

The Configuration Settings That Determine Whether You Profit or Lose

Ad scheduling matched to your actual phone hours

This is the single most important configuration in a call-only campaign. Call-only ads running 24 hours a day when your office only answers from 8am to 6pm burn budget on clicks that produce missed calls. In Google Ads, navigate to Campaign Settings, then Ad Schedule, and set the campaign to run only during hours when a live person picks up. If you use an answering service for after-hours calls, create a separate call-only campaign for those time slots using the answering service number as the call destination, with different headline copy referencing after-hours and emergency availability. One campaign with one phone number cannot serve two completely different call destinations.

Conversion threshold set to 60 seconds

In your Google Ads conversion settings, configure call conversions to count only calls lasting 60 seconds or longer. Data from call tracking providers consistently shows that calls under 60 seconds are junk at a rate of 70 to 75 percent: wrong numbers, robocalls, and misdials. A campaign optimized against 15-second call conversions trains the bidding algorithm to target the audience most likely to call and hang up immediately. Set the threshold to 60 seconds and record only real conversations as conversions. This single setting changes what the algorithm optimizes for.

Bidding: manual CPC first, then Target CPA

Start new call-only campaigns on Manual CPC with a maximum bid of $10 to $15 for emergency trade keywords. Run until you have 30 to 40 confirmed conversions at the 60-second threshold. Then switch to Target CPA bidding with a target of $110 to $140 for HVAC and plumbing emergency queries in most markets. Do not launch on Smart Bidding with no conversion history. The algorithm has nothing to optimize against and will spend your budget poorly through the entire learning period.

Writing Ad Copy That Gets Tapped

Call-only ad copy has one job: convince a homeowner to tap the call button rather than scroll to the next result. You have two headlines at 30 characters each and two description lines at 90 characters each. The format that produces the highest call-through rates for emergency queries: first headline states the service and urgency, second headline states a trust credential, description lines cover a specific offer or service detail.

Do not write copy that references your website or asks homeowners to "learn more." There is no website to visit. The destination is a phone call. Copy that does not reflect this wastes your limited character count on a misdirection.

Negative Keywords: Build the List Before You Spend

Call-only campaigns targeting emergency queries attract significant noise. Homeowners searching for DIY instructions, product information, and unrelated services generate clicks you pay for and cannot convert to booked jobs. Build your negative keyword list before the campaign goes live, then expand it weekly using call recordings and the Search Terms report.

Core negatives for emergency home service call-only campaigns:

• DIY and instructions: how to fix, youtube, manual, tutorial, video, diy, instructions, diagram
• Supply and parts: parts, wholesale, supply, depot, home depot, lowes, amazon, buy
• Employment: jobs, career, hiring, employment, apprentice, salary, resume
• Education: school, training, certification, license exam, course, class
• Price shopping signals you cannot serve: cheapest, free estimate (unless you offer it), coupon, discount code

Review call recordings weekly for the first 60 days. Every pattern producing calls that do not convert to booked service appointments belongs in your negative list. Contractors who skip this step spend two months paying for noise and then conclude call-only does not work.

Performance Benchmarks by Query Type

Emergency query call-only campaigns outperform standard search on booked-job cost per acquisition for a straightforward reason: the homeowner who taps a call-only ad for "emergency furnace repair" is three seconds from booking a service call. The homeowner who clicks a standard search ad is three clicks from the same outcome. Each additional click is an exit opportunity. Call-only eliminates every exit opportunity between the ad and your dispatcher.

Three Actions for This Week

1. Check whether your current Google Ads campaigns run during hours your phones go unanswered. Open Google Ads and navigate to Campaigns, then Settings, then Ad Schedule for each active campaign. Compare the scheduled hours against your actual phone coverage hours. Any campaign running outside covered hours is spending budget on calls that reach voicemail or a hold message. Fix the schedule before any other optimization. A campaign running the right hours with average copy outperforms a campaign with excellent copy running around the clock, because conversions cannot happen when no one answers. If you have emergency after-hours coverage through an answering service, create a separate campaign with a separate phone number and schedule targeting those hours specifically.
2. Launch one call-only campaign targeting your highest-intent emergency keyword cluster. For HVAC contractors, that cluster is "emergency ac repair [city]," "ac not cooling [city]," and "furnace not working [city]." For plumbers, it is "emergency plumber [city]," "burst pipe [city]," and "no hot water [city]." Set a daily budget of $75 to $100, schedule it exactly to your phone coverage hours, set call conversions to 60 seconds minimum duration, and bid with Manual CPC at $12 to $15. Run for 30 days before adjusting bids or switching bidding strategies. Separating emergency intent into its own campaign prevents it from competing for budget with broader service keywords, which carry lower intent and produce lower close rates.
3. Set up call recording attribution before the campaign spends anything. Create a CallRail account and configure a tracking number that forwards to your main business line. Use that tracking number as the destination in your call-only campaign. After one week, listen to the first 10 to 15 calls in the CallRail recording dashboard. Note which search terms produced real service inquiries versus noise. Add the noise patterns to your negative keyword list immediately. Contractors who skip call recording spend 60 days optimizing a campaign they cannot actually measure and then conclude call-only does not work. The recordings are what distinguish a campaign that improves weekly from one that burns budget at a fixed rate indefinitely.

Call-only campaigns are not a replacement for standard search ads. They serve a specific moment: the homeowner on mobile with an active problem who needs to speak to someone in the next 30 seconds. Standard search ads serve homeowners who want to compare options, check reviews, or request an estimate before committing. Running both, with separate budgets and separate schedules, captures the full range of commercial intent in your service area. The emergency segment that call-only captures carries the highest close rates and the lowest price sensitivity in any home service market. That math makes the higher cost per click a sound investment when the campaign is configured correctly from day one.