Never Miss Another Job — AI Systems for London Contractors.

London's trade and contractor market has been reshaped by three structural forces no other UK city combines at this scale. First, lead-aggregator dominance — MyBuilder, Checkatrade, Rated People, Trustatrader and Bark together control 40–60% of high-intent search across plumbing, electrical, building, kitchens, bathrooms and roofing in Greater London, with monthly lead-buying costs commonly £1,200–£4,000+ for active multi-trade firms. Second, Pimlico Plumbers has set a market-distorting price benchmark since 2018 — Charlie Mullins (and successor leadership) successfully positioned £180+ call-out fees as defensible across emergency plumbing and gas, which has dragged the entire London emergency-trades market to higher pricing while leaving routine and project work in a separate, lower-priced economy. Third, planning complexity in Article 4 direction zones (large parts of Westminster, Camden, Kensington & Chelsea, Hammersmith & Fulham, Hackney, Islington, Lambeth) imposes pre-application requirements for changes to facades, windows, roofing materials and rear extensions that contractors must factor into job pricing and timeline.

Job values in London Zone 1–3 are exceptional by UK standards — kitchen renovations routinely £25,000–£80,000, loft conversions £55,000–£140,000, side and rear extensions £80,000–£250,000, full refurbishments crossing £400,000 in prime central London. This concentration of high-value work attracts specialist firms (Granit Architects, Plus Rooms, Resi, Build Team) competing on design-and-build packages, while a much larger long tail of trade-led builders services the £8,000–£30,000 mid-market. Outer London (Croydon, Bromley, Sutton, Kingston, Enfield, Hounslow, Havering) operates at notably lower price points — kitchens £12,000–£25,000, lofts £35,000–£70,000 — but with significantly less aggregator saturation and far cheaper Google Ads CPCs.

London CPCs in trades are eye-watering: 'plumber London' clicks at £18–£32 across 2024–2025, 'kitchen fitter London' at £14–£28, 'loft conversion London' at £22–£40, 'electrician London' at £16–£28. By comparison, the same searches in outer London at borough level (e.g. 'plumber Croydon', 'kitchen fitter Bexley') click at £4–£10. The strategic implication is unambiguous: London-wide paid acquisition is structurally unprofitable for independents. The winning approach is borough-stratified SEO + Google Local Service Ads + Maps optimisation + after-hours capture, which captures the same high-intent traffic at 60–80% lower cost-per-job. Kerblabs' London trade clients running this stack typically achieve £180–£420 cost-per-acquired-job vs £600–£1,400 on aggregator platforms.