When we were designing OSCAR's pricing model, we got pushback on fixed prices from several directions. Professionals told us: "Fixed prices punish me when jobs get complicated." Homeowners told us: "What if the job is simpler than you quoted — am I overpaying?" Both concerns are legitimate. We took them seriously, and we still chose fixed prices. Here is the reasoning.
The incentive problem with hourly billing
Hourly pricing creates a direct financial incentive against efficiency. A plumber billing €35 per hour earns the same per-hour whether they take 90 minutes or 3 hours to replace a tap. There is no reward for working quickly and cleanly, and there is a financial cost to moving fast. This is not a character flaw in tradespeople — it is a structural feature of the pricing model. The incentives are simply misaligned.
We saw this repeatedly in the research interviews we conducted before building OSCAR. A homeowner in Paranhos described a boiler service that "seemed to take forever, with lots of slow pauses." A homeowner in Bonfim described paying for 2.5 hours on a drain cleaning job that the same professional did in 1 hour 20 minutes on a repeat booking three months later — and quoted the same hourly rate. These are not isolated cases. Hourly billing invites this dynamic, and it is nearly impossible to audit from the homeowner's side.
The deeper problem is what it does to the relationship. A homeowner watching the clock on a €35/hour job is not focused on whether the work is being done correctly — they're calculating the invoice. A professional who knows they're being watched for time inefficiency may rush the parts that matter and slow down the parts that are visible. Neither party is thinking about quality. Both are thinking about time.
Fixed prices change the conversation entirely
When the price is confirmed at booking — €65 for a drain unblocking in Campanhã, full stop — the professional's incentive inverts. Working faster means finishing sooner and moving to the next job. The homeowner's attention moves off the clock and onto the quality of the work. That is the conversation we want both sides to be having.
The objection is that fixed prices force professionals to absorb the risk of complicated jobs. That is true. We take it seriously. Our response is threefold:
First, we price in complexity upfront. Our job complexity scoring estimates the realistic duration range before confirming a price. A drain unblocking in a pre-1960 building in Miragaia with a description indicating slow drainage and an older-style trap is priced differently from the same service category in a 2010 Bonfim apartment. The complexity adjustment is not perfect, but it is directional and it reduces the risk of systematic underpricing for difficult jobs.
Second, when a job is fundamentally different from what was described, we have a mid-job repricing protocol. The professional stops, documents what they found, and contacts our support team. We review the situation and either authorize the additional scope or help the homeowner understand what the correct scope should be. The professional is not expected to absorb a 3-hour job that was priced as a 45-minute job because the homeowner's description was incomplete. That is not what our fixed-price model means.
Third, we pay professionals promptly and predictably. A professional who does a fixed-price job that genuinely runs over by 30 minutes earns less per hour on that specific job — that is a real cost. But they also receive their payment automatically the following Monday without chasing an invoice or waiting for a client who "just needs to check the bank transfer." Predictable, reliable payment has a real value that partially offsets the occasional overrun.
The "am I overpaying for a simple job" problem
The homeowner concern is also valid: if a tap replacement takes the professional 35 minutes rather than the 60 minutes you priced it for, are they overpaying? In a pure economic sense, yes. But this is also how every fixed-price service in every other sector works. You pay a fixed price at a restaurant regardless of whether the chef was slower or faster than average that evening. You pay a fixed shipping fee regardless of whether the van was lighter than usual. Fixed price means the variability is absorbed by the service provider, not transferred to the customer. That is the product.
The OSCAR price for a tap replacement in Bonfim is €55. That price reflects the expected cost of doing that job well — travel included, materials included, a reasonable professional margin included. If the professional is experienced and finishes in 40 minutes, their effective hourly rate is higher. If it takes them 75 minutes because of a corroded fitting they didn't anticipate, their effective rate is lower. Over time, across many jobs, the economics work out for professionals who are skilled and efficient. That is what we want working in our network.
Where fixed pricing genuinely breaks down
Fixed pricing has real limitations we don't want to paper over. Emergency callouts are the clearest example. A burst pipe at 22:00 in Ramalde is not the same job as a tap replacement at 10:30 on a Wednesday. The travel cost, the urgency premium, and the potential for genuinely unknown job scope all make emergency pricing structurally different. We currently handle urgent bookings differently — they are flagged at booking, priced with a higher complexity estimate and an urgency component, and allocated to professionals who have opted in for evening availability. We don't claim our standard fixed-price model works cleanly for those.
Large renovation work is also a poor fit for our model at present. Retiling a full bathroom involves significant material variability, sequential dependency on drying times, and scope complexity that our current estimating tools don't handle reliably. We handle those jobs through a custom quoting flow where the professional reviews the specific job before a price is confirmed. We are not pretending our job-category pricing covers everything — it covers the high-volume, defined-scope service calls that make up the majority of home service demand.
The fixed-price commitment is a bet that accurate upfront pricing and fair mid-job protocols create more trust than hourly billing does. Our data from the first four months suggests that homeowners who received a fixed-price quote and saw it honoured at invoice are significantly more likely to book again than homeowners who received an approximate quote and found the final bill different. That is the metric we care about, and fixed prices are how we move it.
