Your Hörmann Truedor composite door is designed to look great, feel solid and keep your home comfortable and secure, with very little effort from you. A few simple habits, done now and then, make all the difference: a gentle clean with warm soapy water, keeping the threshold clear so rain can drain away, and a quick bit of lubrication twice a year. This guide walks you through exactly what to do, how often to do it, and what to avoid, so your door stays smooth to use, smart to look at and in great condition for years to come.
Step‑by‑step: the perfect monthly clean (about 10 minutes)
- Dust first. Brush away grit around the frame, sill and hardware so you don’t drag particles across the finish.
- Wash gently. Warm water + mild detergent on a soft cloth/sponge for the door leaf and frame; dry with a lint‑free cloth. Use standard glass cleaner on glazing (avoid soaking gaskets or sealant).
- Hardware wipe‑down. Mild soapy water on handles/letterplate/knocker; dry thoroughly. In harsher environments, use a stainless‑steel cleaner monthly to prevent tea staining.
- Clear the drain path. Vacuum the threshold channel and weep holes so any water escapes as designed.
Avoid
- Abrasives or scouring pads
- Solvents such as thinners or acetone
- Wire wool
- High‑pressure or steam cleaning
Every 6 months
- Lubricate moving parts. Add a couple of drops of light engineering oil to the hinges; use a light silicone/PTFE spray on the multi-point latch, hooks and keeps; operate the handle a few times to distribute.
- Lubricate the cylinder correctly. Use a PTFE/Teflon‑based lock lubricant (do not use oil or graphite on modern euro‑profile cylinders).
Annually
- Check seals and sealant lines. If you spot gaps or cracks, arrange resealing to keep out draughts and moisture.
- Ask your installer to check alignment if closing effort has changed (seasonal movement or settlement can require minor hinge/keep tweaks).
Why this routine works for Hörmann Truedor
Hörmann Truedor doors use a tough GRP composite leaf with ABS edge banding, so gentle cleaning preserves the finish, while their security package of steel‑reinforced PVC‑U frames, high‑security multi-point locking, a UAP Kinetica 3‑Star cylinder and two sets of triple hinge bolts, stays smooth and effective with light lubrication and correct operation. For added assurance, models can be specified to meet Secured by Design and PAS 24:2016, and the Clima63 upgrade adds a 63 mm insulated slab, triple glazing and a triple‑seal system achieving U‑values under 1 W/m²K, so keeping seals clean and intact helps maintain that thermal performance.
Smooth, secure operation: what to lubricate (and with what)
- Hinges: a couple of drops of light engineering oil on the pivot; wipe off excess.
- Multi-point gearbox & keeps: a light silicone/PTFE spray on latch, hooks and contact areas; cycle the handle several times to work it in.
- Cylinder: a PTFE/Teflon lock lubricant applied sparingly. Do not use oil or graphite.
Security best practice
- Always fully engage the lock when the door is shut; this maximises seal compression, reduces bow risk and helps the door resist attack.
- Your door can be specified with Secured by Design ready GRP slabs, laminated security glazing cassettes, a BSI Kitemark 3‑Star cylinder, a split‑spindle option, and exclusive triple hinge‑bolts, routine care keeps them working at their best.
Warranty & support
Hörmann Truedor provides an insurance‑backed guarantee (up to 5 years) on key components (door slab, frame, glass units and hardware) and nationwide after‑sales support; routine cleaning, correct operation and appropriate lubrication help you stay within guidance for long‑term peace of mind.
Need more help? Email info@truedor.co.uk and our team will be happy to help.



