How Much Does a Missed Call Cost a Chimney Sweep? (October 2026 Math)
In short
In a worked example, a chimney company that misses 90 of 300 calls in October loses about $18,773, or $209 per missed call. A missed sweep call costs about $246, not the $254 sweep price times a booking chance, because 38% of it is the repair the sweep would have found: a cap, masonry, flashing or a liner. June loses about $577, so October carries 32 times the risk. Prices are Angi's 2026 chimney figures.
In short: in a worked example for a two-truck chimney company, the 90 calls it misses out of 300 in October cost about $18,773, or $209 per missed call. The biggest piece is the sweep request, and it is bigger than it looks: a missed sweep call costs about $246, and 38% of that is not the sweep. It is the repair the sweep would have found. June loses about $577, so one October carries about 32 times a quiet month's risk.
Disclosure up front: I'm Justin McKelvey, and Local Call AI, the AI receptionist company that publishes this blog, is mine. The chimney math works no matter who answers your phone; our plan prices show up once, near the end.
As of October 2026, Angi puts the national average chimney sweep at $254 (most homeowners pay $129 to $381), based on 19,349 verified projects. That price is why a lot of sweeps let the phone ring in October. One missed $254 call does not feel like much when four more are waiting. The trouble is that the sweep is rarely the whole job.
The sweep is how you find the repair
Angi's list of what sweeps "often identify" on an annual visit reads like a repair menu: a chimney cap at $75 to $500, flashing repair at $400 to $1,600, a damper at $160 to $520, general chimney repair at $160 to $750, and a new liner at $1,500 to $5,000. None of those calls come in on their own. The homeowner calls for a sweep, the tech sees a cracked crown or a rusted cap, and the quote is written on the roof.
So we value a sweep call at two things: the sweep, and the chance it turns into a repair. Our assumption is that 1 in 5 sweeps turns up a repair the homeowner buys, and that the repairs split 40% caps, 30% masonry repair, 20% flashing and 10% liners, each at the middle of Angi's range. That makes the average repair $776.50 and adds $155.30 of expected repair to every booked sweep. A booked sweep is worth about $409.30, not $254. Your own repair rate is the first number to swap in.
The October we model
A two-truck company, owner on one of the trucks, and the first cold forecast of the year. Angi says sweeps book up in early spring and late fall, and the chimney sweep answering service comparison we published models the same month at 300 calls. Here is the mix, all planning numbers:
- 200 sweep requests. 80% book if you answer.
- 30 inspections. 10 are Level 2 inspections for a home sale (Angi: $260 to $460, used at $360) and 20 are Level 1 ($160 to $300, used at $230).
- 20 leak calls. Water in the firebox or a stain by the chimney. Half turn into a repair, valued at Angi's flashing midpoint of $1,000.
- 10 animal calls. Angi puts removal at $200 to $600; we use $400 and assume 70% book.
- 40 calls that are not new work: 20 existing customers moving an appointment and 20 sales pitches, wrong numbers and out-of-area callers.
With the crew on roofs, the office misses 30%, 90 calls: 60 sweep requests, 3 home-sale inspections, 6 Level 1 inspections, 6 leak calls, 3 animal calls and 12 calls that were not new work.
What the 90 missed calls cost
A callback still works for some callers. We assume it wins back a quarter of the sweep and Level 1 callers and half of the leak callers, because a stain on the ceiling can wait an afternoon. It wins back none of the home-sale inspections: a buyer with a closing date books whoever answers.
| Missed call | Missed | Value used | Books if answered | Lost after callback | Lost revenue |
|---|---|---|---|---|---|
| Sweep request | 60 | $254 sweep + $155.30 expected repair | 80% | 75% | $14,734.80 |
| Level 2 home-sale inspection | 3 | $360 | 100% | 100% | $1,080.00 |
| Level 1 inspection | 6 | $230 | 80% | 75% | $828.00 |
| Leak repair | 6 | $1,000 | 50% | 50% | $1,500.00 |
| Animal in the flue | 3 | $400 | 70% | 75% | $630.00 |
| Existing customer or not a job | 12 | $0 | $0.00 | ||
| Total | 90 | $18,772.80 |
Each row is missed calls times value times booking chance times the share a callback does not recover. Spread over 90 missed calls that is $208.59 each; over the 60 sweep requests alone it is $245.58.
Why the sweep-fee count is wrong
Price the 36 lost sweeps at the sweep fee alone and the row is $9,144. The repairs those sweeps would have found add $5,590.80, or 61% on top, and they are 38% of the real sweep loss. That is the number the "it's only a $254 call" instinct misses. It also explains why a sweep with a strong masonry side should care more about October calls than one that only sweeps.
It does not end in October. CSIA and NFPA both recommend a yearly inspection and cleaning, so the homeowner who books someone else this fall is likely to call that company next fall. If 60% of sweep customers come back each year (our assumption), the 36 lost sweeps take about $5,486.40 of next October's sweep fees with them, before any repairs.
Our pest control missed-call math values a call by the plan it starts. A chimney call is valued by what the tech finds once he is up there, and the homeowner only finds out it was needed once someone shows up.
June, for contrast
In June the same company gets about 60 calls and misses 10%: 4 sweep requests, 1 leak and 1 other. A June caller is not racing the first frost, so we assume a callback wins back three quarters of the sweep requests. The 4 sweeps lose $327.44, the leak $250, and the month $577.44. October loses about 32 times as much on five times the calls. That is the case for answering every October call even if you let June go to voicemail. Angi even tells homeowners to book in spring or summer to save money, which is the opposite of when your phone rings.
Across other trades, our 2026 missed-call cost research collects the published studies on unanswered calls in home services.
How much rests on our guesses?
Angi supplied every price. The repair rate does the most work: at 1 in 10 sweeps instead of 1 in 5, the sweep row falls to $11,939.40 and the month to $15,977.40. A sweep that sends masonry work to someone else should take the repair column out and count only the sweep. And we used Angi's national average all year, though Angi says fall prices run higher, so the October numbers lean low.
What it costs to answer a chimney company's phone
Local Call AI's Standard plan is $297 a month with 250 call minutes, Connected is $497 with 500, and Concierge starts at $750 with 1,000. Past the allowance every plan bills $0.35 a minute, and every plan answers in English and Spanish. A chimney call takes about two and a half minutes: the address, the fuel (wood, gas or pellet), how many flues, when it was last swept, and whether the house is being sold.
| What you forward | Minutes | Standard ($297) | Connected ($497) | Concierge (from $750) |
|---|---|---|---|---|
| Every October call (300) | 750 | $472.00 | $584.50 | from $750.00 |
| Only the October calls nobody picks up (90) | 225 | $297.00 | $497.00 | from $750.00 |
| Every June call (60) | 150 | $297.00 | $497.00 | from $750.00 |
One booked sweep that finds a cracked crown covers the October bill on Standard. Connected texts the on-call tech and files each call into Jobber or JobNimbus, the two systems we integrate with. Concierge lets a leak caller text a photo of the stain. The AI does not diagnose a chimney or quote a repair; a caller describing a chimney fire is told to hang up and call 911. Plan details are on the pricing page.
Find your own number
Pull last October's missed calls from your phone carrier and call back a sample. Sort them into sweeps, inspections (and which were home sales), leaks, animals and everything else. Then pull your own repair rate: of last year's sweeps, how many led to a repair, and what did it average? Put those into our missed-call calculator and compare the result to June.
Frequently asked questions
How much does a missed call cost a chimney sweep?
In our worked 2026 example, a two-truck chimney company that misses 90 of 300 calls in October loses about $18,773, or about $209 per missed call. A missed sweep request costs about $246. June, with 6 missed calls, loses about $577. Prices are Angi's 2026 figures (national average sweep $254); the call mix, booking chances and the 1-in-5 repair rate are assumptions to replace with your own.
Why is a missed sweep call worth more than the $254 sweep?
Because the sweep is where repairs are found. Angi lists caps ($75 to $500), flashing ($400 to $1,600), dampers ($160 to $520) and liners ($1,500 to $5,000) as common findings on an annual visit. If 1 in 5 sweeps leads to a repair averaging $776.50, each booked sweep carries $155.30 of expected repair, and the repairs are 38% of the October sweep loss in our example.
Which missed chimney call is the most expensive?
Per call, the leak call ($1,000 flashing midpoint) and the home-sale Level 2 inspection, which is lost outright because the buyer has a closing date. In total, the sweep requests: 60 of them cost $14,734.80 in our October example, 78% of the month's loss.
How much does a missed call cost a chimney sweep in summer?
Much less. In our June example 6 missed calls cost about $577, because summer callers are not racing the first cold night and most will wait for a callback. October loses about 32 times as much on five times the calls.
What does an answering service cost a chimney company in October?
On Local Call AI, answering all 300 October calls at about two and a half minutes each is 750 minutes: $472 on Standard ($297 with 250 minutes, then $0.35 a minute) or $584.50 on Connected. Forwarding only the 90 missed calls is about 225 minutes, inside Standard's 250, so $297.
Sources: Angi, "How Much Does a Chimney Sweep Cost? [2026 Data]" (angi.com/articles/how-much-does-chimney-sweep-cost.htm, updated October 22, 2026, read October 25, 2026: national average $254 from 19,349 verified projects; most pay $129 to $381; Level 1 inspection $160 to $300, Level 2 $260 to $460, Level 3 $500 to $800; cap $75 to $500, liner $1,500 to $5,000, flashing repair $400 to $1,600, damper replacement $160 to $520, chimney repair $160 to $750, animal removal $200 to $600; fall peak pricing; CSIA and NFPA yearly inspection and cleaning recommendation). Local Call AI pricing page, read October 25, 2026 (plans, minutes, $0.35 per-minute overage, integrations). The pest control comparison refers to our own post published October 16, 2026. Call volumes, call mix, missed rates, booking chances, callback losses, the 1-in-5 repair rate and repair mix, the 60% yearly return rate and the 2.5-minute call length are planning assumptions, not measured customer data.