Carpentry Repair Cost & Work Guide

Professional carpentry repairs not only restore the aesthetic appeal of your home but also ensure safety and longevity. Whether you are dealing with a historic Victorian property or a modern build, high-quality timber work maintains your property's value and structural integrity.

What Does the Work Involve?

• Initial Assessment: Identifying the root cause of the issue, such as moisture ingress, insect infestation, or natural settlement.
• Preparation: Clearing the work area and, if necessary, providing temporary structural support for floors or ceilings.
• Removal: Carefully cutting away damaged, rotted, or split timber sections without affecting surrounding structures.
• Repair and Splicing: Fitting new timber "Dutchmen" or splicing in new sections of wood using traditional joints or modern fixings.
• Stabilisation: Strengthening weakened areas with steel plates, resin injections, or additional bracing.
• Finishing: Planing, sanding, and applying wood fillers or protective treatments to ensure a seamless match with existing woodwork.

Typical Costs

Carpentry costs vary significantly based on your location (London and the South East typically command a 20-30% premium) and the complexity of the timber involved. Most carpenters charge a minimum call-out fee to cover travel and the first hour of work.

Pro Tip: Always ask if the quote includes "making good." Some carpenters will repair the wood but leave the painting or staining to you or a decorator.

How Long Does It Take?

• Minor adjustments (doors/latches): 1–2 hours per item.
• Staircase repairs (creaks/loose balusters): 3–6 hours depending on access.
• Replacing a section of skirting board: 2–4 hours including mitring corners.
• Structural joist repairs: 1–2 days, as this often involves lifting floorboards and reinforcing the sub-floor.
• External timber repairs (fascias/soffits): 1 day, depending on the need for scaffolding.

DIY or Professional?

Small tasks like filling minor cracks, sanding, or oiling a worktop are well within the reach of a confident DIYer. However, precision tasks like hanging a new door or repairing a staircase require specialist tools and years of experience to get right.

Any work involving structural timbers (joists, roof rafters, or load-bearing lintels) must be handled by a professional. Incorrectly cutting into a joist can compromise the safety of your entire home and may violate UK Building Regulations.

Choosing the Right Tradesperson

• Check Qualifications: Look for NVQ Levels 2 or 3 in Carpentry and Joinery, or City & Guilds certifications.
• Joiner vs. Carpenter: For bespoke items made in a workshop, hire a joiner; for on-site repairs and structural work, hire a carpenter.
• Portfolio: Ask for photos of similar repair work, especially if you have a period property where matching grain and style is vital.
• Questions to Ask:
  • Are you insured for public liability?
  • Will you match the existing wood species (e.g., Oak, Pine, Sapele)?
  • How will you manage the dust created during the repair?
  • Is the timber you use FSC-certified?

UK Regulations

• Part A (Structure): Repairs to floor joists or roof timbers must maintain the structural integrity of the building.
• Part B (Fire Safety): Repairs to fire doors must use specific fire-rated materials and intumescent strips to remain compliant.
• Part L (Conservation of Fuel and Power): External timber repairs (like windows) should ideally improve or maintain thermal efficiency.
• Listed Buildings: If your home is listed, you may need Listed Building Consent before using modern resins or non-original timber species.

Common Problems

• Hidden Rot: Wet or dry rot often extends much further than the visible surface damage. A pro will "chase" the rot back to healthy wood.
• Mismatched Timber: Using "green" (unseasoned) wood for repairs can lead to warping and gaps as the timber dries out in a heated home.
• Incorrect Fixings: Using standard steel screws for external repairs will lead to rust streaks; stainless steel or brass is required for longevity.
• Poor Dust Management: Carpentry is messy. Ensure your tradesperson uses HEPA-filtered extraction to prevent fine sawdust from coating your home.

Frequently Asked Questions

Why do my doors stick in the winter but not the summer?

Timber is hygroscopic, meaning it absorbs moisture from the air. In the damp UK winter, wood swells, causing doors to stick. A carpenter can plane the edges, but care must be taken not to remove too much, or you will have large gaps when the wood shrinks in summer.

Can you fix a squeaky floorboard without lifting the whole floor?

Often, yes. Squeaks are usually caused by boards rubbing against each other or nails loosening. This can often be fixed by using specialist "cleat" screws or by injecting wood glue into the joints, though some access may still be needed.

Is dry rot more expensive to fix than wet rot?

Generally, yes. Dry rot (Serpula lacrymans) is more aggressive and can spread through masonry to find more wood. It requires extensive chemical treatment and the removal of timber well beyond the visible damage.

What is the difference between a Carpenter and a Joiner?

In the UK, a joiner usually works in a workshop "joining" pieces of wood together (making windows, doors, stairs). A carpenter typically works on-site, installing those items and handling structural repairs.

Will a repair be visible once finished?

A skilled carpenter can make most repairs nearly invisible. By using matching wood grain, high-quality fillers, and professional sanding techniques, the repair should disappear once the final finish (paint, stain, or wax) is applied.