AI Receptionist Cost for Plumbers: What Marblism, Smith.ai and Ruby Charge (Oct 2026)
Here is what three services list for answering a plumbing company's phone. These are list prices from each vendor's own pricing page. Your real cost depends on how many calls you get and how long they last.
Try Marblism Disclosure: Igor Ganapolsky is a Marblism partner and earns a referral commission if you sign up through this link. It doesn't change the price you pay.List prices
- Marblism: $24/mo billed yearly, or $44/mo billed monthly (source Disclosure: Igor Ganapolsky is a Marblism partner and may earn a referral commission., as of Oct 12, 2026). The receptionist, Rachel, is included in every plan (source Disclosure: Igor Ganapolsky is a Marblism partner and may earn a referral commission.). The pricing page doesn't say how many calls the 50 monthly hours of AI work cover.
- Smith.ai AI Receptionist: Free plan $0/mo for 25 calls, then $3.00 per call (source, as of Oct 12, 2026). Pro $150/mo for 75 calls ($2.00 per call), extra calls $2.50 each (source, as of Oct 12, 2026). Enterprise $500/mo for 300 calls ($1.67 per call) (source, as of Oct 12, 2026).
- Ruby (live receptionists): $250/mo for 50 minutes, $395/mo for 100 minutes, $720/mo for 200 minutes, $1,725/mo for 500 minutes (source, as of Oct 12, 2026).
A worked example: 100 calls a month on Smith.ai Pro
Pro includes 75 calls. The other 25 calls are billed at the extra-call rate: $150 + 25 × $2.50 = $212.50 a month (source, as of Oct 12, 2026). This is arithmetic on the published prices, not a quote.
Why we don't convert Ruby minutes into calls
Ruby bills by the minute, and call length varies a lot from one plumbing business to the next, so we don't guess a per-call cost. Ask Ruby for an estimate based on your own call log.
Where each one wins
- Smith.ai wins if you want a human backup: its AI can hand a hard call to a live receptionist, and you can try it on the free plan before paying (source).
- Ruby wins if you want every call answered by a live person, with Spanish and bilingual answering, and no setup or onboarding fees (source).
- Marblism wins on flat price: the plan includes Rachel plus six other AI employees for email, social media, lead generation and more (source Disclosure: Igor Ganapolsky is a Marblism partner and may earn a referral commission.). The trade-off is that it's AI only, with no human receptionist backup listed.
See it live, free
Join the free webinar Fewer Missed Calls, Faster Follow-Up: AI Workers in Practice on Thursday, Oct 22, 2026, 1:00–2:00 PM ET.
Frequently asked questions
How much does Marblism's AI receptionist cost?
Rachel is included in every Marblism plan. The plan is $24/mo billed yearly, or $44/mo billed monthly (source Disclosure: Igor Ganapolsky is a Marblism partner and may earn a referral commission., as of Oct 12, 2026).
How much does Smith.ai's AI Receptionist cost?
Smith.ai lists a free plan at $0/mo for 25 calls, then $3.00 per call (source, as of Oct 12, 2026), Pro at $150/mo for 75 calls ($2.00 per call), extra calls $2.50 each (source, as of Oct 12, 2026), and Enterprise at $500/mo for 300 calls ($1.67 per call) (source, as of Oct 12, 2026).
How much does Ruby cost?
Ruby lists $250/mo for 50 minutes, $395/mo for 100 minutes, $720/mo for 200 minutes, $1,725/mo for 500 minutes (source, as of Oct 12, 2026).
See Marblism's AI receptionist Disclosure: Igor Ganapolsky is a Marblism partner and earns a referral commission if you sign up through this link. It doesn't change the price you pay.