How to: Change a Toilet Seat

In our customer properties, there are some tasks Unitas is responsible for and others which are the responsibility of the customer as the resident of the house. As part of our Void standards, Unitas will fit a toilet seat, however as and when this needs replacing, it becomes the job of the customer.


With that in mind, we thought we’d use this weeks’ “how to” guide, to talk you through the steps you need to change the toilet seat.


Step 1 – Measure the seat

Image shows a white toilet bowl with a cross drawn on top of it. At each corner of the cross are the letters A, B, C and D. A and B are opposite each other on on of the lines whilst C and D are opposite each other on the other lines.

Toilets come in a range of shapes and sizes, so you’ll need to measure yours to ensure that the replacement you buy is the right shape and size. Lift the existing seat and measure as below:


You’ll also need to know if your toilet is an Oval shape, a D shape and a square shape as you’re buying the replacement. Once you’ve got those measurements, take yourself to the shops (or the internet) and buy your new toilet seat. Each seat comes with it’s own fixings, so once you come to step 2, you won’t need to keep any of the old screws or bolts.


Step 2 – Remove the existing seat

Image shows a white porcelain toilet with silver hinges attaching the seat to the toilet.

Take off the existing seat by taking the seat off its’ hinges and removing all the existing fixings.


Step 3 – Clean the area

Image shows a number of spray bottles. These are white, pink and yellow. There are three cloths and a pair of yellow rubber gloves in front of the bottles.

Using disinfectant, clean the whole area then dry thoroughly to ensure no mould or rust.


Step 4 – Put the new fixings in place

Image shows a white ceramic base with a silver screw poking out of it. The screw is being held by a hand in a pair of blue plastic gloves.

Unpack the new toilet seat and, using the manufacturers’ instructions, put the new fixings into place, dropping the nuts through the holes in the toilet and tighten them with a screwdriver.


Step 5: Replace the covers

Image shows a white porcelain toilet with two silver screws towards the back of it. One of the screws is being fixed into place by a hand in a blue plastic glove.

The new toilet seat will come with stainless-steel covers to go over the brackets and give a smooth finish, as below


 Step 6 – Finish installing the seat,

Image shows a white man in a blue jumper and wearing a pair of blue plastic gloves kneeling in front of 
a white porcelain toilet. He is holding the toilet seat with both hands.

Slot the seat into place and admire your handiwork:


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