What you can DIY on shower enclosures and what you really should not

A few weeks ago we walked into a bathroom where the homeowner had tried to install a half-inch frameless door himself. The door slipped during the lift, clipped the edge of the tile, and exploded into the small granular pieces tempered glass turns into when it fails. He was unhurt because he was wearing shoes. The tile floor was not, and neither was the new vanity, and neither was the door, which cost more to replace than the labour would have cost in the first place.

That call is why we get specific about which shower enclosure tasks a homeowner can do safely and which ones really should go to a pro. Here is our short list.

What a capable homeowner can DIY

Some parts of a shower enclosure project are well within reach of someone who has done a few weekend projects.

Demolition is the easiest of all. Pulling off the old hardware, prying out the old silicone, and getting the bathroom back to a clean substrate is grunt work that does not need a specialist. Wear gloves and eye protection, and keep children away from the old glass while it sits in the corner waiting for the skip.

Substrate prep is the next step up. Wipe down the mounting area, scrape off the old silicone, and check that the wall is plumb and the tray is level. It is a careful job, not a skilled one.

A pre-fab framed kit, set on a sound tray, is the install most homeowners can tackle. The kit comes with drilled hardware, pre-cut seals, and an instruction sheet. With a level, a drill, the right hole-saw bit for tile, and some patience, a confident homeowner can stand up a framed enclosure in a long Saturday.

Final caulking is finishing work. Mask both sides of the seam, run a single steady bead of quality neutral-cure silicone, and tool it smooth with a wet finger. Slow and tidy beats fast and messy every time.

Day-to-day maintenance is the easiest hand-off back to the homeowner. Wiping down the glass, swapping a worn door sweep, replacing a side wipe seal, tightening a sagging hinge by half a turn. All of it owner-friendly work that keeps the install in good shape for years.

What to share with a pro

Some tasks live in the middle. You can do part of the work and let a pro handle the bit where the risk lives.

Tile and waterproofing prep is the classic share. Lay your own tile if you are confident, but get the waterproof membrane inspected before any hardware goes up. A pro can do a five-minute visual and a moisture test that saves a five-figure remediation later.

Hardware spec selection is the other one. The “what to buy” list is easy to get wrong on your own. A short consult with a glass installer tells you whether the kit you are about to buy uses 304 or 316 stainless and whether the hinges are residential or hospitality-rated. That conversation is usually free at the quoting stage.

What you really should not DIY

Three things on a shower enclosure project go from manageable to dangerous fast. Hand these to a pro.

Lifting and setting half-inch frameless glass. A standard frameless door weighs upwards of 120 pounds, the surface is slippery, the bathroom is cramped, and one slip drops the panel onto a tile floor. We have seen the result. Two people with the right suction-cup carriers is the only safe way to do this, and the second person needs to know how the lift sequence works.

Cutting or drilling tempered glass on site. You cannot do this. Tempered glass shatters into thousands of small pieces if cut or drilled after the tempering process. Every cut and hole has to be made before the glass is tempered, at the supplier, to the exact size you need. A measurement error at the order stage is a four-week wait and the cost of new glass.

Drilling into a wall without knowing what is behind it. Modern bathrooms have electrical wires, water pipes, and sometimes both running through the wall behind the tile. A wrong drill location can hit a live wire (a hospital trip) or a hidden pipe (a flooded apartment downstairs). A pro uses a stud and wire detector before every hole and knows the typical rough-in locations for the building age.

The short rule

If you can pick it up alone without breaking a sweat, you can probably DIY it. If it weighs more than a small motorcycle engine, takes two people just to get into the room, or involves drilling into a wall blind, get a pro on site.

The goal is a working shower at the end of the project. Not a story to tell later about the time you almost killed yourself in your own bathroom.

Related reading

• Shower enclosures: DIY vs professional installation
• Choosing shower enclosure hardware that lasts longer than five years on the coast
• Shower enclosures and salt-air corrosion: the real story

For background on why tempered glass cannot be cut after the tempering process, see the Wikipedia entry on tempered glass.

The next step

If you have decided to DIY part of your shower install and want a pro to handle the glass and hardware, or you want a quote for the full job, our team can survey the bathroom, spec the right enclosure, and handle the high-risk parts safely. We back every install with a one-year workmanship warranty.

Request a quote, browse our shower enclosure work, or get in touch to talk through what you can take on yourself and what to hand to us.