Client
Industry
OneCallFix
Home Services Marketplace
Deliverables
AI Job-Scoping Platform + Tradesperson Marketplace
Region
Tamworth, United Kingdom
YEAR
2025 – 2026
Overview
A marketplace that lets the job describe itself.
OneCallFix connects homeowners across Tamworth, UK with vetted plumbers, electricians, handymen, decorators, and gardeners. The problem with every existing marketplace is the same: homeowners don’t know how to describe their own problem, and tradespeople end up bidding blind on a one-line job description.
We built OneCallFix around an AI scoping assistant that sits between the homeowner and the marketplace. Instead of a static form, the homeowner describes their issue in their own words, and the assistant asks the follow-up questions a tradesperson would normally have to ask on a phone call or home visit, things like whether an old unit needs removing first, what type of system is already installed, or whether a power outlet is already in place. By the time the job is posted, tradespeople have enough detail to bid with confidence, often without needing a home visit at all.
Next js
Node.js
AWS
ChatGPT / LLM Scoping Engine
Figma Design System
Lead-Pricing Engine
Tradespeople maximum can bid per lead
Trades covered: plumbing, electrical, handyman, decorating, gardening
Dynamic lead price range, based on job value & quality
Contracts or subscriptions for tradespeople
Early marketplace supply validation
Homeowners don’t know what’s wrong, tradespeople don’t have enough information to price it, and everyone ends up on the phone anyway.
A homeowner might know their sink smells bad, but not whether that's a trap issue, a vent issue, or something else entirely. Static forms assume a level of diagnostic knowledge homeowners simply don't have.
A one-line description like "install an AC" tells a tradesperson almost nothing — is it a new install or a removal-and-replace, a split or window unit, is there an existing power outlet? Without that, pricing is guesswork.
On most platforms, posting a job means handing your phone number and email to every tradesperson who shows interest — leading to a flood of calls and texts before the homeowner has chosen anyone.
Open marketplaces flood homeowners with proposals from a dozen tradespeople competing for the same job, while capped platforms give homeowners no way to ask for more if they're not happy with their options.
Key strategic solution layers:
The Problem
An AI scoping assistant that asks the right follow-up questions, before the job is ever posted.
When a homeowner starts a job on OneCallFix, they first describe their issue in their own words, just like they’d explain it to a friend. The AI assistant reads that description and generates a short series of multiple-choice follow-up questions specific to that trade and that issue, each with a “not sure” option so nobody gets stuck.
For an AC installation, that might mean asking whether an old unit needs removing, whether it’s a split or window system, and whether a power outlet is already in place. For a leaking pipe, it might ask where the leak is coming from and whether it’s affecting other fixtures. The result is a job posting that reads like it was written by someone who already knows what they’re talking about, because the AI walked them through it.
From there, the homeowner answers a second round of pricing-relevant questions (budget range, timeline, and trade-specific details like whether a plumbing job is gas-related), uploads photos if they have them, and submits their contact details. Up to three tradespeople can then review the job, see the full AI-generated scope, and either submit a quote directly or request a home visit, no guesswork, no fifteen-minute phone call just to understand the brief.
A conversational, multi-step form replaces the static questionnaire. Every follow-up question is generated based on the homeowner's own description and the trade selected.
With enough detail upfront, tradespeople can submit a binding quote, including VAT status, deposit requirements, and timeline, without ever visiting the property.
Only three tradespeople can submit an offer per lead, keeping competition fair. If the homeowner isn't satisfied, they can request additional quotes and the job reopens.
Tradespeople never see a homeowner's phone number or email until they've been shortlisted. The homeowner stays in control of who can contact them, and when.
Lead fees are calculated from job budget, urgency, distance from the tradesperson, and lead quality, capped at £100 and never below £5, so tradespeople only pay what a lead is actually worth.
Every tradesperson uploads ID and trade-specific qualifications (Gas Safe registration, Part P, NVQ, EICR certificates and more), reviewed by the admin team and reflected as badges on their profile.
The Solutions
Our Process
From a one-line problem to a posted job, in three steps.
The entire homeowner journey was designed as a single, progressively-extending form, rather than a series of disconnected pages, so the experience feels like a conversation, not paperwork.
The homeowner picks a trade (plumber, electrician, handyman, decorator, or gardener) and describes their problem in free text, exactly as they’d say it out loud.
Based on that description, the assistant generates a small set of multiple-choice questions (with a “not sure” option on every one) to fill in the details a tradesperson would need before quoting.
Trade-specific questions (such as whether a plumbing job is gas-related), an estimated budget range, and a required completion timeframe are captured to inform both lead pricing and which tradespeople are notified.
The homeowner adds photos or videos, a postcode (used to calculate distance-based pricing), and their contact details, while their account is created in the background.
The job is emailed to relevant, verified tradespeople. Up to three can submit interest with a direct quote or request a home visit. The homeowner reviews profiles and shortlists, contact details are only released once a tradesperson is shortlisted, and the review loop closes once the job is won.
The product in detail
Every screen, from the homeowner’s first description to the tradesperson’s review link.
The full platform spans a homeowner-facing marketplace, an AI scoping flow, a tradesperson dashboard with vetting and lead management, and an internal admin panel for verification, disputes, and revenue tracking.
Once the AI has scoped the issue itself, the form shifts to the details that determine lead pricing and tradesperson matching: budget band (from under £100 to over £30,000), urgency, and trade-specific questions like gas-related work for plumbing jobs.
The same login screen routes homeowners and tradespeople into very different dashboards: homeowners manage posted jobs and shortlists, while tradespeople manage leads, vetting documents, availability, and performance data.
From “My Jobs”, homeowners see how many tradespeople have shown interest and how many have been shortlisted for each posting, can edit the job (triggering an update email to interested tradespeople), and manage contact preferences and account settings from a single profile screen.
Not every enquiry starts as a full job posting. The “Request a Quote” page gives homeowners a lighter-weight contact path that feeds into the same tradesperson-matching logic.
Every action that costs a tradesperson money, purchasing a lead, requesting a refund, uploading a vetting document, ends with a clear, branded confirmation screen so there’s never ambiguity about what just happened.
