LASTING LTD – Mega Cost Calculator 2025
Instant estimate for London projects. SMART HMO + borough rules + WhatsApp + PDF.
WhatsApp-first lead flow
SMART HMO + Fire package
Auto borough/ward from postcode lookup (postcodes.io).
Rates can be edited inside this code (SERVICES).
Use Total area OR Per-floor mode below.
Per-floor: total = (area input) × floors
Default 2 (hall + shared area). Adjust if needed.
SMART HMO may auto-switch to FD60 for big HMOs / boroughs.
Options (Add-ons)
Selectable extras
Options can be per m² / fixed / per bathroom / per kitchen / per room / per door / per fire door.
*Estimate only. Final quote confirmed after survey, drawings, access and specification.
Guide ranges (min–max) + mid-point.
Estimated total
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—
Labour—
Materials—
Options—
Subtotal—
Contingency—
VAT—
Location
London
Postcode: —
Estimate No / Date
—
—
Tip: In HMO mode, options + fire package may auto-apply. You can still override manually.
