HC Electrical - the live electrician build we’d port to any reactive trade
A working trades-electrician build for HC Electrical, the Haverhill (CB9) NICEIC-registered domestic + commercial electrical contractor. Their public site, the cert-and-quote engine behind it, the EICR recall annuity, the letting-agent batch billing, the EV-installer grant tracker, and the letting-agent portal - all live in production, all the live reference for what the trades-electricians page and the trades hub sketches are describing.
Live: hc-electrical.co.uk
The brief
HC Electrical runs the standard reactive-electrician revenue mix in Haverhill and the surrounding CB postcodes: domestic rewires and fault-find, EICR inspections on the letting-agent book, EV charge-point installs against OZEV / EVHS grants, the occasional commercial fit-out, and the constant trickle of “my fuseboard’s tripping” emergency call-outs.
The 2025 reality was that every revenue stream came with a separate operational drag. Quoted work went silent at +7 days. EICR recall conversion sat below half of the book the lettings agents managed. OZEV grant submissions paid eight to twelve weeks after the job, with the homeowner ringing on Friday afternoons asking where the money was. Letting agents queried invoices by phone on Tuesday mornings instead of paying them. The “do you have the cert from three years ago” dispute took an evening with a paper file.
The brief was the same shape as every reactive-trade brief we hear: “the work is fine, the trade is fine, the people calling are fine - it’s the bit between the call and the money that’s broken”. We built the engine for HC Electrical first because the electrician’s revenue mix is the cleanest test of every part of it: recurring compliance (EICR), grant-driven work (OZEV), letting-agent batch billing (the cashflow problem), commercial stage-payment (the retention problem), and audit-trail-by-default (the cert-dispute problem). The same engine, re-tuned, is what now ports across plumbers, gas engineers, roofers, builders, decorators, landscapers, locksmiths, and MCS installers.

What we built
The public site. hc-electrical.co.uk - a fast, statically-generated site with eight service pages (sockets and switches, rewiring, fuse boards, EICR, EV charge points, emergency call-outs, lighting, commercial), six location pages anchored on Haverhill + Bury St Edmunds + Saffron Walden + Sudbury + the CB9 villages, a service-area map, a contact form, and the search-engine surface that picks up “electrician Haverhill” and the long-tail location combos.
The quote-and-chase ladder. Every quote sent becomes a tracked object. Quote sent → SMS reminder at +3 days → email at +7 with the certification PDF (where the job needs one) re-attached → +14 soft close → +21 “are we doing this or shall I park it” in the lead-engineer’s voice, never in a sales tone. The ladder runs across SMS and email, with the customer’s actual response routed back to the right thread. Live example for Quote & Chase Ladder.
The EICR recall annuity. Every EICR cert filed sets the next-due date five years out (or 12 months on commercial, or shorter on HMOs, per BS 7671). The recall cadence fires at -90 / -60 / -30 / -7 days, on the channel the agent or landlord prefers (most agents WhatsApp; landlords email), with the previous cert auto-attached and a one-tap booking link in the message. The book is now an annuity rather than a fresh-sales loop. Live example for Recurring Service Recall.
The letting-agent batch invoicing + dunning ladder. Letting-agent work - usually managed properties needing periodic EICR + minor remedial - bills as a monthly batch, with each invoice carrying the cert PDF auto-attached, the per-property line breakdown, and a day-31 statutory-interest line that fires automatically per the Late Payment of Commercial Debts (Interest) Act 1998. Live example for Invoice & Dunning Ladder.
The agent-side portal. Each letting agent sees their managed properties, the certs for each, the invoices outstanding, the photo-sets per job, the payment links, and the booking calendar for upcoming work. The Tuesday-morning “do you have the cert for 14 Acacia Avenue” phone call closes itself - the agent opens the portal, finds the cert, downloads the PDF, and moves on. Live example for Customer & Third Party Portal.
The EV-installer grant-submission tracker. OZEV (EVHS for residential, Workplace Charging Scheme for commercial) submissions tracked per job - pre-install photos, post-install photos, customer-eligibility evidence, charge-point serial number, manufacturer warranty registration, accreditation references, submission state, payment state. The cadence fires customer-side as the submission moves through OZEV’s queue, so the homeowner stops ringing about the grant. Live example for Grant & Submission Handling.
The commercial retention ledger. Commercial fit-out work carries the standard 5% retention split half-on-practical-completion, half-on-defects-period-end (typically 12 months). The retention ledger tracks each project’s first-half and second-half release dates, with the QS-chase cadence firing at -30 / -7 days of the contractual release and the variation log feeding the margin view as the job runs. Live example for Stage Payment & Retention Ledger.
The audit-trailed cert record. Every EICR cert, every commercial CDM submission, every remedial-work note stored with the raw test readings, the on-site photos, the timestamped notes, and the version of BS 7671 in force on the date of test. The disputed-C2 query six months later is answered from the log in two clicks, not from a paper file in the van. Live example for Compliance Evidence Record.

The outcome (in studio voice)
What the build delivers - in direction-not-numbers shape, described as what the build is designed to do:
- The quoted-work pipelinethe “sent on Tuesday, silent at Thursday, gone by the following Wednesday” pattern compressed. Win-rate on chase-worthy quotes materially up against the pre-build baseline.
- The EICR bookletting-agent recall conversion materially up against the pre-build baseline. The renewal lands before the agent goes shopping against an expired cert.
- The cashflow gap on letting-agent workthe historical 80+ days cycle materially closed toward the contractual 30 days, driven by the auto-attached cert PDF, the day-31 statutory-interest line, and the agent portal absorbing the phone-call volume that was previously the dunning bottleneck.
- The OZEV grant payment cyclesubmission-to-paid materially shortened, with the customer-side cadence absorbing the “is my £350 grant ever coming” enquiry that was previously the engineer’s evening.
- The commercial retention bookfirst-half and second-half release dates now systematically tracked rather than living in the project manager’s head. The QS-chase cadence catches release dates that previously slipped six to eighteen months past the contractual date.
- The cert-dispute exposurethe six-months-later disputed-C2 query answered from the audit log rather than from a paper file in the van, with the on-site photos + BS 7671 version + timestamped notes presented as a single PDF.
- The agent-side phone-call volumeTuesday-morning “have you got the cert for…” slot materially reduced, replaced by self-service portal traffic.
Specific £ / % / time-saved figures attributed to HC Electrical are deliberately omitted here. Outcome detail will be published with named-client permission as it lands.
Which verticals this fits
- Trades - electricians (main)primary
- Trades - electricians / EICR specialistthe EICR recall + audit-trail surfaces
- Trades - electricians / EV installerthe OZEV / EVHS grant-submission tracker + customer-side cadence
- Trades - electricians / commercialthe stage-payment + retention ledger surface
- Trades - overviewreferenced as the trade-engine proof
The same engine ports across reactive trades - plumbers, gas engineers, roofers, builders, decorators, landscapers, locksmiths, MCS installers - with the regulator names and the customer-side language retuned per trade.
Which problems this solves
HC Electrical is the live example for the largest cluster of trade-side solution pages:
- Quote & Chase Ladder
- Invoice & Dunning Ladder
- Recurring Service Recall
- Grant & Submission Handling
- Stage Payment & Retention Ledger
- Customer & Third Party Portal
- Compliance Evidence Record
- Job Cost & Margin Dashboard
Want the trade engine for your reactive-trade business?
Tell us what your revenue mix is - domestic / commercial / lettings / grant-driven - and where the “between the call and the money” gap shows up. The engine ports across reactive trades; the build is scoped to your trade, your accreditation set, your customer-side language, and the bits you already run that we’d leave alone. No demo, no calendar widget. Email reply, scoped sketch, you decide.