Looking for toilet descaling service for a bathroom in UK

Hi there, I need a reliable handyman to descale our toilets. The main bathroom toilet has some mineral buildup and minor staining from hard water. Ideally, you would use safe descaling products and ensure there’s no damage to seals or porcelain. Please bring your own protective gear and explain any recommendations for preventing future buildup. We have one full bathroom and one guest toilet. Comfort with small household tasks and attention to detail is a must. Flexible on timing, but I’d prefer a morning appointment.