Pimlico Plumbers

Challenge: 250 Engineers on the Road, Every One of Them Having a Different Conversation

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Pimlico Plumbers built its reputation on reliability and premium service — 1-hour response times, 24/7 availability, and engineers who leave your home cleaner than they found it. After 45 years, the brand commands premium pricing and serves 80,000+ customers a year across every major London borough.

But the challenge wasn't getting engineers to the door. It was what happened after they arrived.

Every service call is a revenue opportunity. A plumber fixing a leaking radiator valve can recommend a full boiler replacement. An electrician replacing a fuse board can suggest a rewire. A drainage specialist clearing a blockage can flag underlying pipe damage that needs repair.

With 250+ engineers on the road daily, the variation in how those conversations happened was significant. Some engineers were natural sellers — they'd finish a repair and casually mention what else they'd noticed, turning a £200 callout into a £2,000 job. Others did the repair, wrote up the invoice, and left.

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"Our best engineers see every callout as a chance to help the customer more and grow the job. But most engineers are trained to fix, not to sell. Asking them to upsell without practice is like asking them to install a boiler they've never worked on — they'll avoid it because they're not confident."

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Solution: AI Practice for Every Service Scenario an Engineer Actually Faces

RepLab was deployed across Pimlico's multi-trade engineering team with scenarios built around the real conversations their engineers have in London homes every day:

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‍For Plumbing Engineers:

• Boiler replacement upsell — customer called for a repair on a 15-year-old boiler. Practice recommending replacement with financing options instead of a patch job that'll fail again in 6 months.

• Maintenance plan introduction — after any repair, practice presenting an annual service plan as a way to prevent future emergencies.

• Emergency-to-project conversion — burst pipe fixed. Practice identifying additional plumbing issues in the property and booking a follow-up quote.

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For Heating Engineers:

• Radiator upgrade conversation — customer has old convector radiators. Practice suggesting modern radiators during the annual gas check.

• Energy efficiency advisory — practice framing a new boiler as a long-term cost saving, not an expense.

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For Electricians:

• Fuse board upgrade recommendation — practice explaining safety risks of outdated consumer units to homeowners who didn't ask for it.

• Smart home upsell — practice introducing smart thermostats, lighting, or security systems during a routine electrical job.

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For All Engineers:

• Price defense — Pimlico charges premium rates. Practice confidently defending the price when a customer says "that's more than I expected" or "I can get it cheaper."

• Cross-trade referral — a plumber spots an electrical issue. Practice recommending a Pimlico electrician instead of letting the customer call someone else.

• Review and referral ask — practice asking for a Google review or referral at the natural end of a positive service experience.

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Engineers practiced on their phones between jobs — 5 minutes in the van before the next callout. The AI buyer pushed back with realistic London homeowner responses: price sensitivity, "let me get another quote," "just fix what's broken today," and "I'll think about it."

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The Results

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• Average job value increased 22% — engineers who practiced upsell scenarios consistently converted more repair calls into larger projects

• Cross-trade referrals increased 3X — plumbers referring Pimlico electricians, electricians flagging drainage issues. Revenue stayed in-house instead of going to competitors.

• Premium price defense improved measurably — engineers reported feeling confident explaining Pimlico's pricing. Customer complaints about cost decreased while average job values increased — meaning customers accepted the price because the engineer articulated the value.

• New engineer ramp time compressed — new hires practiced every scenario type before their first solo callout. Instead of learning upsell conversations through months of trial and error in the field, they arrived prepared.

• Zero classroom sessions required — 250+ engineers trained entirely through on-demand AI practice. No scheduling logistics, no pulling engineers off the road, no lost revenue from missed callouts.

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"Our engineers are brilliant at their trade. RepLab made them just as good at the conversation. When a plumber can confidently explain why a boiler replacement saves money long-term — instead of just patching and leaving — that's better for the customer and better for us."

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