Maintain your door and window hardware easily: every six months, lightly lubricate handle pivot points and locking parts using GT85 or a similar general-purpose lubricant (use specialist dry lube only for profile cylinder locks). Apply light machine oil (e.g., 3‑In‑One) to hinge pivots. Clean painted or plated surfaces gently using a soft, non‑abrasive cloth dampened with warm water—n... https://greenteqguarantee.co.uk/