Door Installation Cost in Wellington: 2026 Price Guide

Whether you’re replacing a tired front door, fitting new internal doors after a renovation, or upgrading to something more secure and weathertight, the cost of a “new door” varies enormously depending on what you’re actually installing and what condition the existing opening is in. This guide breaks down realistic 2026 pricing for door installation in Wellington, and the details that push a quote up or down.

Average Door Installation Costs in Wellington

Labour alone for a straightforward interior door installed into an existing, square opening typically runs $150–$300; more involved installs — new framing, exterior weatherproofing, or a non-standard opening — take longer and cost more accordingly.

What Affects Door Installation Cost in Wellington

Existing frame condition

Installing a new door slab into an existing, structurally sound frame of the correct size is the cheapest and quickest scenario — often just a few hours of work. If the existing frame is out of square (common in older Wellington villas, where original openings were rarely perfectly true to begin with), damaged, or the wrong size for a standard new door, the job expands to include frame repair or replacement, adding both time and material cost.

Interior vs exterior doors

Interior doors are generally simpler installs — no weatherproofing, no security hardware complexity, and lighter doors to manoeuvre and hang. Exterior doors need to be properly weathersealed against Wellington’s wind-driven rain, often include more substantial locking hardware, and are heavier and more time-consuming to hang correctly, particularly solid timber or reinforced security doors.

Door material and weight

Hollow-core interior doors are the lightest and most straightforward to install. Solid core and solid timber doors weigh considerably more, requiring properly reinforced hinges and more careful, time-consuming fitting to avoid sagging over time. Glass panel doors add complexity around safe handling and glazing compliance.

New doorway vs like-for-like replacement

Replacing a door within an existing opening, keeping the same size and position, is the most cost-effective scenario. Widening an opening, moving a doorway’s position, or cutting a new opening into an existing wall involves removing wall linings, potentially adding structural framing and a header, and may trigger a building consent requirement depending on whether the wall is load-bearing — all of which adds meaningfully to both cost and project timeline.

Wellington’s older housing stock

A significant number of Wellington homes are older villas and bungalows where doorways were built to imperial measurements rather than the metric standard sizes used in modern joinery. This mismatch means a straightforward “swap the door” job sometimes turns into a custom-fit job requiring the new door to be trimmed, or occasionally the frame adjusted, to fit an opening that doesn’t match current standard door sizes.

Interior Door Installation: What to Expect

For a standard interior door going into an existing, sound frame:

• Removal and disposal of the old door, if applicable
• Fitting the new door slab, planing or trimming as needed for a proper fit
• Hanging on new or existing hinges, shimmed and levelled correctly
• Fitting hardware — handle, latch, and lock if required
• Basic finishing touches — this typically doesn’t include painting or staining, which is usually quoted separately

This is generally a 1–3 hour job per door for a straightforward installation, longer if the frame needs adjustment or the door needs custom trimming.

Exterior Door Installation: What to Expect

Exterior door installation involves more steps than an interior equivalent, given the weathertightness and security requirements:

• Removal of the old door and, if needed, the frame
• Checking and adjusting the frame for square and level, since even small gaps compromise weatherproofing
• Fitting the new door, typically heavier and requiring more robust hinge hardware
• Weatherproofing — sealant and weatherstripping around the full perimeter of the frame, critical given Wellington’s wind-driven rain
• Fitting locks, deadbolts and handles
• Trim and finishing — interior and exterior trim reinstalled or replaced, ready for painting or staining

This is typically a half-day to full-day job depending on complexity, and rushing the weatherproofing step is one of the more common causes of later problems — water finding its way in around a poorly sealed exterior door frame.

Do You Need a Building Consent to Install a New Door?

A like-for-like door replacement — same size, same position, no structural change — generally doesn’t require a building consent. Widening a doorway, particularly through a load-bearing wall, or creating an entirely new external doorway typically does require consent, since it affects the building’s structure. It’s worth confirming this with your installer before committing to a non-standard door installation, particularly on an older Wellington home where wall construction can be less predictable than in a modern build.

Standard Door Sizes vs Custom Fitting

Sticking to standard modern door dimensions keeps costs predictable, since standard doors are readily available off the shelf. Older Wellington homes with non-standard, imperial-measurement openings sometimes need either a custom-sized door (more expensive to source) or minor frame adjustment to accept a standard size — both add cost compared to a straightforward like-for-like swap, so it’s worth having your installer measure the existing opening properly before ordering a door, rather than assuming a standard size will simply drop in.

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