How Much Does a Builder's Admin Assistant Cost in the UK?
If you run a building business in the UK, admin is not optional — quotes, invoices, risk assessments, email replies, and lead follow-up all need doing. The question is whether you do it yourself after hours or pay someone else.
The real cost of hiring admin staff
A part-time office administrator typically costs £12,000–£17,000 per year in salary alone. Add employer National Insurance, pension contributions, holiday pay, sick cover, and recruitment — and most builders are looking at £17,000–£25,000+ annually for someone who handles quotes, invoicing, and phone calls.
The hidden cost: your time
If you cannot afford staff, you do the admin yourself — usually after 8pm when the tools are down. Industry data shows the majority of builder quotes are written in the evening. That is family time traded for paperwork, and slow quotes still lose jobs to faster competitors.
Builder Diddies: from £199/month
Builder Diddies gives you a dedicated virtual staff member on WhatsApp for from £199/month. Quotes, invoices, contracts, risk assessments, email summaries, and lead follow-up — no computer needed, no payroll, no contract. Cancel anytime.
Try our staff cost calculator to see your potential savings.