Repair door architrave.

Repairing damaged architrave is a cost-effective way to refresh a room without the expense of a full renovation. Whether it is a simple case of re-pinning a loose length or replacing a section of rotten timber, a professional carpenter can restore the architectural integrity of your doorways quickly and neatly.

What Does the Work Involve?

• Inspection: Assessing whether the issue is cosmetic (cracks/gaps) or structural (loose frame or damp).
• Preparation: Scoring paint lines with a utility knife to prevent the wall plaster or wallpaper from tearing during removal.
• Removal: Gently prying away damaged sections using a bolster chisel or crowbar.
• Mitring: Cutting new timber or MDF at precise 45-degree angles to ensure tight, seamless corners.
• Fixing: Securing the architrave using a combination of high-strength wood adhesive and recessed finishing pins.
• Making Good: Filling pin holes, sanding joints flush, and applying caulk to the wall-side gap for a professional finish.

Typical Costs

Prices are primarily driven by the material choice and the complexity of the profile. If you have period features with bespoke mouldings, a carpenter may need to source custom timber, which will increase both material costs and lead times.

How Long Does It Take?

• Minor Repairs: 30–60 minutes to re-fix loose sections or fill hairline cracks.
• Partial Replacement: 1–2 hours to cut, fit, and blend a new section into existing moulding.
• Full Door Set: 2–3 hours per door for removal and complete installation of new architrave.
• Whole House: 1–2 days depending on the number of doors and the level of sanding/filling required.

DIY or Professional?

While fixing a loose piece of trim is a manageable DIY task, achieving perfect "light-tight" mitre joints requires specialist tools like a mitre saw and a steady hand. If your home has fire doors, you must ensure any repairs do not interfere with the intumescent strips or the door's fire-rating certification.

Professional carpenters use "pre-primed" materials and pneumatic nail guns, which result in a much cleaner finish than manual nailing and hand-painting raw wood.

Choosing the Right Tradesperson

• Look for a carpenter with a portfolio showing neat, gap-free joinery work.
• Check for City & Guilds Level 2 or 3 in Site Carpentry or Joinery.
• Red Flag: Avoid trades who suggest "filling large gaps with caulk" rather than cutting the timber to fit accurately.
• Ask: "Will you be using a mitre saw for the corner joints?"
• Ask: "Is the final painting included, or do you leave the wood ready for a decorator?"
• Ask: "Do you have experience matching period moulding profiles?"

UK Regulations

• Part B (Fire Safety): If repairing architrave on a fire door (common in flats or near kitchens), the moulding must not obstruct the door's ability to close or interfere with smoke seals.
• Material Standards: Timber should ideally be FSC-certified to ensure it is sustainably sourced.
• Waste Disposal: Small amounts of timber can go in domestic waste, but large-scale replacements require the trade to have a waste carrier licence if they are taking it away.

Common Problems

• Split Timber: Using nails that are too large or failing to pre-drill hardwood can cause the architrave to split.
• Ghosting: If pins aren't punched below the surface and filled correctly, they will "bleed" rust or show as bumps through the paint.
• Springing Mitres: Using poor quality adhesive or fixing into "blown" plaster can cause the corner joints to open up over time.
• Profile Mismatch: Modern architrave is often thinner than Victorian or Edwardian originals, leading to an awkward "step" if only one side is replaced.

Frequently Asked Questions