Skirting and architraves are damaged and swollen — repair, or replace the lot?
Our skirting boards and door architraves are chipped, dented and in places swollen at the bottom (near where the floor gets wet-mopped).
- Can damaged skirting/architrave be repaired and made good, or better to replace?
- What material holds up best here — MDF, solid wood, or PVC/polymer?
Trying to get clean, durable trim without redoing more than I need. What's the call?
3 answers
Short answer: minor chips, dents and gaps in skirting/architrave can be FILLED, sanded and repainted to look new — that's routine make-good. But SWOLLEN trim is a replace job: swelling means moisture has got into the board (almost always cheap MDF skirting wicking up water from wet-mopping), and once it's swollen it won't go back, so you cut out and replace the affected lengths. On material: standard MDF is fine and cheap for DRY areas but swells at floor level if it gets wet; MOISTURE-RESISTANT MDF or, better for splash-prone spots, PVC/POLYMER (waterproof, won't swell/rot) or good SOLID/primed timber are the durable choices — especially for bathroom, kitchen and entrance skirting that meets a wet-mopped floor.
Repair vs replace: - Repair (make good): chips, dents, small gaps, lifted joints → fill with a suitable filler, sand, re-caulk the wall line, and repaint. Looks new, cheap. Good for cosmetic damage on sound trim. - Replace: swollen, crumbling, water-damaged or badly split lengths → you can't un-swell board, so cut out and fit new. Swelling at the base is the classic tell.
Why it swells (and how to stop it recurring): - Cheap standard MDF skirting wicks up water from wet-mopping/leaks at the floor line and swells. So the fix isn't just new trim — it's the right material and sealing the bottom edge.
Material choices (Dubai): - Standard MDF: cheapest, paints well, fine in dry areas — but swells if it gets wet at the base. - Moisture-resistant MDF: better for kitchens/bathrooms; more tolerant of the odd splash. - PVC / polymer skirting: waterproof, won't swell, rot or attract termites — excellent for wet/splash-prone areas (bathrooms, entrances), takes paint or comes finished. - Solid / primed timber: durable and repairable, pricier, seal it properly. - Seal the edges (especially the bottom) whatever you choose.
Common mistake: replacing swollen MDF with more standard MDF in the same wet spot — it just swells again. Match the material to the moisture, seal the base, and get a carpentry and joinery team to make good the sound bits and replace the swollen lengths (this is trim, distinct from choosing doors). Anyone switched to PVC skirting in wet areas — no more swelling?
Swollen MDF skirting in the bathrooms was our exact problem — the mop water wicked straight up the cheap board and puffed the bottom edge. Replaced those runs with PVC skirting and it's been bulletproof, no swelling. Kept and just filled/repainted the trim in the dry rooms since it was only cosmetic. The lesson was not to put standard MDF back where it gets wet; match the material to the splash. Fill and repaint what's sound, replace what's swollen with something waterproof. Sealing the bottom edge helps everywhere.
Good to know the swollen bits are definitely replace not repair — I'd hoped to filler my way out of it. For the kitchen and bathrooms I'm now speccing moisture-resistant or PVC trim from the start, and keeping standard MDF for the bedrooms where it stays dry. The floor-line is where all the damage is, from mopping. Filling and repainting the sound skirting elsewhere is cheap and comes up great. It's really about putting the right material where the water is, rather than the same cheap board everywhere and redoing it in a year.
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