Cost Per Call in Home Services: In-House Versus Outsourced

Home services cost per call is the wrong number on its own

Cost per call is easy to calculate and easy to misuse. A business can cut it to almost nothing by letting calls ring out, which is why it has to be read alongside the number it trades against.

The pair that works in home services is cost per call and cost per booked job. A team at $6.00 a call with a 30% booking rate costs $20 per booked job. A team at $9.00 a call booking 50% costs $18. The more expensive team is the cheaper team, and only the paired view shows it.

Set up the comparison that way before you start modelling, or the model will optimise for the wrong outcome. It is the comparison every home services call center outsourcing decision should rest on.

Building the in-house cost properly

Start with published wage data rather than the salary line you remember.

The Bureau of Labor Statistics Occupational Outlook Handbook puts the median annual wage for customer service representatives at $44,770, or $21.53 an hour, on May 2025 data, across employment of 2.67 million. Dispatchers, the closer match for a home services role that also assigns work, sit at a median of $50,340. Note the labour market context too: BLS projects customer service representative employment to fall 5% through 2035 while still generating roughly 289,500 openings a year, which is an occupation shrinking and churning at the same time.

Wages are not the cost. The BLS Employer Costs for Employee Compensation release for June 2026 puts benefits at 30.0% of total compensation in private industry. Grossing the median CSR wage up accordingly gives a fully loaded wage-and-benefits cost of approximately $64,000 a year per seat.

That figure is a Centro calculation from two BLS series, not a published statistic. It is also only the beginning of the cost.

The four lines that get left out

Attrition. ContactBabel's 2024 US Contact Center Decision-Makers' Guide, based on a survey of 189 contact center managers and directors, reports mean agent attrition of 31% and a median of 24%, with a third of centers above 30% and 12% losing more than a quarter of new agents within their first three months. On a six-seat team at the median, you are replacing roughly one and a half people a year, every year, permanently.

Replacement cost. SQM Group, which benchmarks against more than 500 contact centers, puts the average cost to replace an agent at $20,800, with replacement running 30% to 50% of a new agent's salary. This is a vendor benchmark rather than a public dataset, so treat it as directional, but it is the right order of magnitude once recruiting, onboarding, training and the productivity loss during ramp are counted.

Ramp time. SQM puts time to average performance at six months or more. In home services the ramp is arguably harder than in a generic contact center, because the agent has to learn your pricing, your service areas, your dispatch rules, which technician handles which equipment, and what actually constitutes an emergency in your market. A CSR at month two is not half as productive as a CSR at month eight. On booking rate, which is where the money is, they are often a third as productive.

Supervision, software and idle capacity. A team needs a supervisor at some ratio, telephony and quality tooling, a workstation, and coverage for holidays and sick days. And in a seasonal business it needs to be sized somewhere between the January trough and the June peak, which means paying for capacity you do not use for part of the year and lacking capacity you need for the rest.

Add these and the honest in-house figure for a covered seat lands well above the $64,000 wage-and-benefits line. Build your own version rather than accepting a number from a vendor, including ours.

How outsourced pricing actually works

Three structures dominate, and each hides cost somewhere different.

Per seat, per month. A dedicated agent for agreed hours. Predictable, easy to compare against in-house, and the structure that supports training depth. It hides cost in idle time when your volume drops below the seat you are paying for.

Per minute or per call. You pay for handled volume. Elastic and attractive at low volume. It hides cost in two places: a long, high-quality call that books a $7,500 replacement costs you more than a short one that books nothing, and per-minute pricing quietly rewards a provider for brevity rather than for booking.

Per booked job or blended with an outcome component. Aligns incentives most directly. It requires clean attribution and a defined baseline, and it is only offered by providers confident enough in their booking rate to price on it.

The questions that expose the real number are consistent across all three: what is the minimum commitment, what is the notice period to flex capacity up or down, what is charged for training when an agent is replaced, and what happens to the rate when volume doubles for eight weeks in the summer.

Where in-house genuinely wins

A comparison that always favours the vendor is not a comparison.

In-house is the better answer when call volume is low and steady enough that one or two people can hold it without strain, when the person answering also does dispatch and parts and the combined role is genuinely efficient, when your work is highly technical or commercial and the qualification conversation depends on knowing the crew personally, and when the owner is still the best salesperson in the business and the phone is how they sell.

The pattern that most often signals the opposite is a business where the answer rate collapses in the evenings and at weekends, where the booking rate falls sharply in peak months, and where the CSR role has turned over twice in eighteen months. Those three together are a capacity problem, and capacity problems are what outsourcing is actually for.

For most multi-location operators the answer is not one or the other. It is a core in-house team for business hours and relationships, with an outsourced team covering evenings, weekends, overflow and the seasonal spike.

Home services cost per call over twelve months, not one

A single-month comparison flatters in-house, because it prices a January team against January volume. Home services does not operate in January volume.

Run the model across twelve months with your real monthly call distribution. Two things usually emerge. Fixed in-house cost is paid in full during months when volume is 40% below the annual average, and the months where capacity falls short are also the months with the highest average ticket. ServiceTitan's analysis of roughly 800 HVAC shops found average daily revenue rising 55% during heat waves, with the first heat wave of the season at 90%. Missing calls in a low month costs you small jobs. Missing calls in a peak week costs you replacements.

Angi's 2025 State of Home Spending Report gives the household context: an average of $12,472 spent across ten projects, including $1,143 on emergency repairs, up from $978 in 2024. Emergency spend is rising, and it is the least tolerant of an unanswered phone.

What Centro quotes

Centro prices Contact Center Outsourcing on a per-seat basis with a defined surge structure, because it is the model that supports training an agent properly on your systems while still flexing with your season. Agents are trained and certified before going live, coverage runs 24/7 across five delivery centers, and booking rate appears in the monthly review alongside cost per call.

Keep reading

• Seasonal Call Volume in Home Services
• Home Services Call Booking Rate Benchmarks
• The Home Services Guide to Contact Center Outsourcing
• Contact Center Staffing Calculator: How Many Support Agents Do You Need?

Sources

• US Bureau of Labor Statistics, Occupational Outlook Handbook, Customer Service Representatives, May 2025 wages. BLS customer service representatives
• O*NET OnLine, Dispatchers, Except Police, Fire and Ambulance, BLS wage data. O*NET dispatchers
• US Bureau of Labor Statistics, Employer Costs for Employee Compensation, June 2026. BLS ECEC
• ContactBabel, The 2024 US Contact Center Decision-Makers' Guide, 189 contact center leaders. ContactBabel guide
• SQM Group, Call Center Attrition Rate, vendor benchmark. SQM Group
• ServiceTitan, Heat waves bump HVAC revenue by 55%, roughly 800 HVAC shops. ServiceTitan heat wave analysis
• Angi, 2025 State of Home Spending Report. Angi spending report