Shower Door Replacement: New Parts, Glass or a New Shower?
A shower door that leaks at the bottom edge, sags on its hinges or has gone permanently cloudy is a common reason Auckland homeowners call us about a bathroom that is otherwise fine. With shower door replacement, the glass is often the last part that needs changing. A worn seal, a tired hinge or a sealant line that has shrunk back off the tiles can be fixed for far less than a new door. New glass makes sense when the panel itself is damaged or dated and the shower behind it is sound. And when the base, the tiles or the waterproofing have failed, new glass on top of them is money spent twice.
This article is for the bathroom you already have. If you are planning a new bathroom and want to compare glass types, frameless and framed options, the NZ safety standard and cleaning routines, start with Superior Renovations' guide to shower glass types, standards and care. Here we work through the other question: you have a bathroom glass door that isn't working, so what does it actually need?
Can you replace just the door on a shower?
Yes, in a lot of bathrooms you can. A new door or panel on an existing shower works when the base, the tiles and the waterproofing behind them are all sound. In that case the job is glass and hardware only, with no tiler, plumber or waterproofer involved.
There are two things to understand before you ask for a price.
Shower glass is made to fit the enclosure
Most shower glass on a tiled shower is custom work. Metro Glass, one of the established NZ glass makers, describes its frameless glass showers as custom made to suit the bathroom layout, with hinged or sliding doors, angled panels or notch cut-outs. That is why a glazier measures the finished enclosure on site first and then has the panels made to size. On a full renovation, our bathroom stages guide puts shower screen installation at 5 to 10 working days after tiling, and the fabrication lead time is the variable. On a glass-only swap, the same measure-then-make sequence applies, so expect a site visit before the new glass can be ordered.
Off-the-shelf door kits and framed doors are sold by bathroom suppliers such as Mico's shower doors and panels range and Reece. Those suit standard openings. An older tiled shower often isn't a standard opening once you measure it properly.
Toughened glass cannot be altered after it is made
Shower glass has to be toughened or laminated safety glass, and the AS/NZS 2208 mark is etched into the panel. Toughened glass is heat-treated after it has been cut, drilled and polished. Nothing can be cut, drilled or ground into it afterwards. So if you want the door to swing the other way, or the hinges moved, the panel has to be remade to the new hole positions. The same applies to a chip on an edge: it isn't a cosmetic flaw you can polish out, and the panel has to be replaced.
What your shower door is telling you
Before anyone talks about new glass, match the symptom to the part that has actually failed. There are five usual causes, and only two of them are the glass.
Water on the floor at the bottom of the door
A panel weeping at the bottom edge is usually sealant or a door seal, not glass. Silicone shrinks back off the tile over time, and the seal strip along the bottom of a door wears and hardens. Our acrylic versus tiled shower guide puts silicone around glass and junctions at a replacement interval of every 2 to 3 years, sooner in Auckland's humidity. This is a small, serviceable job. Our sister company can reseal a failed shower sealant line as a minor bathroom alteration: strip the old sealant, treat any mould and reseal.
A door that drags, drops or won't close
A door catching on the tray or the hob is almost always hardware. Hinges lose tension, and on sliding doors the rollers and channels fill with soap residue. All of it is serviceable. Get a dropping door looked at early, because it puts load somewhere the panel was never designed to carry it.
Glass that has gone cloudy
Cloudiness is usually mineral scale from hard water, and scale comes off with a regular white vinegar and water clean. Etching doesn't. If the cloud stays after a proper clean, the minerals have started to eat into the surface and no product reverses it. At that point the choice is living with it or replacing the panel. This is one of the two cases where the glass genuinely is the problem.
A chip or a crack
The second case. A cracked or chipped toughened panel is replaced, not repaired, with a new panel carrying the AS/NZS 2208 mark. Don't keep using a door with a chipped edge.
Mould that keeps coming back, or water outside the shower
This is the one that matters most, and it has nothing to do with the door. BRANZ guidance on waterproofing tiled showers traces leaks most often to floor-to-wall and hob-to-wall junctions and around drains. If mould keeps returning in the silicone joints after you've resealed, or you see staining, swelling skirting or lifting floor coverings outside the shower, the waterproofing may have failed behind the tiles. New glass won't fix that, and it will have to come off again when the shower is rebuilt.
Acrylic cubicle or tiled shower: why it changes the answer
The type of shower you have decides what "replacing the door" even means.
Acrylic shower cubicles
A lot of 1990s and 2000s Auckland bathrooms have a moulded acrylic shower: a base, wall liners, glass and a waste sold as one package. In a cubicle the glass belongs to that system, so a new door often means a new unit rather than new glass. Swapping one acrylic unit for another, with the plumbing in the same place, is a straightforward job: 4 to 6 hours with one tradesperson. If the tray is cracked or the liners are stained, replacing the whole unit is usually the better use of money than chasing a door to suit an old base.
Tiled showers
A tiled shower with a hob or a tiled base is where a glass-only replacement really works, because the glass is made to fit whatever opening you have. The condition of the tiles and the waterproofing behind them is what decides whether it is worth doing.
Turning a cubicle into a tiled shower
Some people start with "we just want better glass" and end up wanting the cubicle gone. Replacing a standalone acrylic unit with a tiled shower, without renovating the rest of the room, comes to $7,000 to $10,000 or more once consent, waterproofing, tiling, plumbing and glass are added, according to our acrylic versus tiled shower comparison. MBIE's position is that a level-entry wet-area shower needs a building consent. If you're weighing that up, check the consent side with Auckland Council or a licensed building practitioner before you commit.
Swapping framed for frameless on an existing shower
A request we hear often is to take out an old aluminium-framed sliding door and put in semi-frameless or frameless glass. Framed aluminium screens are now largely considered dated in Auckland renovations. Fair enough. Whether it works on your existing shower depends on three things.
The walls and the hob
Frameless glass needs square walls and a level hob or base, because there's no frame to take up the difference. In older villas and 1970s and 1980s brick-and-tile homes, walls are often out of plumb. A semi-frameless or channelled panel usually sits better than fully frameless in an older home with walls that aren't straight.
What the old frame leaves behind
An aluminium frame is fixed through the tiles and sealed along its edges. When it comes off, you're left with fixing holes and the line where the channel sat. On some tiles that is easy to cover with the new fittings; on others it isn't. Ask the glazier to show you where the new hinges, clamps or channels will land before you order.
The step into the shower
If the real complaint is the step, new glass won't solve it. A standard shower tray carries a lip of 50 to 75mm, which is exactly where falls happen for older people or anyone unsteady on their feet. In older villa bathrooms we often fit a very low-profile base with a 25 to 40mm lip and a single frameless panel rather than a door. That's a shower rebuild, not a glass swap.
Frameless glass is also not a DIY upgrade. The panels are heavy and the install has to be exact to stay leak-free. Our design manager put it this way on our shower glass guide:
Frameless brings an effortless, airy feel, it's often what makes a small bathroom feel properly luxurious. The honest caveat is it only works if the install is exact. It's not a DIY job. — Dorothy Li, Design Manager, Superior Renovations
When new glass is money spent twice
Replacing a panel or a door makes sense while the tiling, the tray or base, the floor fall and the waterproofing are all sound. Once there's a leak past the membrane, drummy tiles around the shower or a base that never drained properly, fix the shower first and choose the glass last. Putting new glass on a failing shower means paying for it again when the shower is rebuilt, because the glazier's measure only fits the enclosure it was made for.
The age of the bathroom is a good first signal
If your bathroom was built or last renovated after 2010, there's a good chance the waterproofing was done to a reasonable standard, and a tired shower screen can be replaced as part of a cosmetic refresh. Homes from the mid-1990s to the mid-2000s, the leaky building era, are a different story. Roughly 1 in 5 of our Auckland bathroom demolitions uncovers something unexpected, and it's more common in homes built before the 2004 Building Act tightened standards. If you're unsure which side of the line your bathroom sits on, our guide on whether a partial refresh or a full strip-out suits your bathroom sets out the warning signs to check first.
What each option costs
Superior Renovations doesn't publish a single price for new shower glass on its own, and there isn't an honest one. The glass is made to your enclosure, so the size, the number of panels, the door type and the hardware all move the number. What we can give you are the ranges either side of it:
- Reseal or new hardware: a minor bathroom alteration, usually a single visit.
- Professional cosmetic refresh (new vanity, toilet, tapware, shower screen, painting and lighting, with no change to plumbing positions, waterproofing or tiling): $9,000 to $16,000 in Auckland.
- Mid-range bathroom renovation: $26,000 to $35,000.
- Full overhaul (retile, new layout, premium fixtures): $40,000 to $60,000.
Qualified trades in Auckland run at $120 to $150 an hour, which is why a shower opened up twice costs so much more than one done once. To see where your bathroom sits, test a partial and a full scope in our bathroom cost calculator.
How the glass was handled in a Henderson Valley renovation
Leigh and her family had lived in their Henderson Valley home for 15 years, and both bathrooms dated to the 90s. This wasn't a glass swap. The showers were rebuilt, with the shower floor and walls fully waterproofed before any tile went on, and custom-cut shower glass was made to fit each finished enclosure. The main bathroom got a tiled shower with a glass corner enclosure and hinged door on a tiled hob.
The second bathroom is narrow, so its layout stayed put and it was tied to the main bathroom with the same floor, shower and wall tiles and the same gun-metal tapware. You can see the full scope on our two-bathroom renovation in Henderson Valley. The photos show the main bathroom's glass corner enclosure with its hinged door on the tiled hob (left) and the hinged glass door in the narrow second bathroom (right).
The order is the point. The glass was the last trade in, measured off finished tiles, on showers that had just been waterproofed. That's the sequence that lets a panel last as long as the shower behind it. On our bathroom renovations, we supply and fit the shower glass as part of the job, so the glazier's measure, the waterproofing and the tiling are all under one project manager.
Shower door replacement: common questions
Can you replace just the doors on a shower?
Yes, on a tiled shower where the base, tiles and waterproofing are sound. A glazier measures the existing opening and has a new door or panel made to fit. On an acrylic cubicle the glass is part of a matched package, so replacing the whole unit is often simpler. Leaks outside the shower mean fixing the shower first.
Why does my shower door leak at the bottom?
Usually the door seal has worn or the silicone has shrunk back off the tile, not the glass. Both are replaceable parts, and silicone around glass generally needs renewing every 2 to 3 years in Auckland's humidity. If water appears outside the shower after a reseal, the waterproofing behind the tiles needs checking.
How much does a shower door replacement cost in Auckland?
There's no fixed figure, because shower glass is made to each enclosure, so size, panel count, door type and hardware set the price. A reseal or hardware repair is a minor job. A professional cosmetic refresh that includes a new shower screen runs $9,000 to $16,000 in Auckland, and a mid-range bathroom renovation $26,000 to $35,000.
Can I fit a new frameless shower door myself?
We don't recommend it. Frameless panels are heavy and need exact alignment to stay safe and leak-free, and older walls are often out of plumb. Any replacement panel must be toughened safety glass carrying the AS/NZS 2208 mark. A professional glazier or a managed renovation is the sensible route.
If you're not sure whether your shower needs a reseal, a new door or a rebuild, our design team at the Superior Renovations showroom, 16B Link Drive, Wairau Valley, can talk it through with you. We've completed more than 1,000 Auckland renovations, and you'll find more of that work on superiorrenovations.co.nz. Book a free bathroom consultation and bring photos of the door, the base and the sealant line.