Average Labour Cost/Price to Fit/Install/Replace a Waste Disposal Unit

To clarify the following prices it is recommended that you read the article in the INFORMATION box below the PRICES…

(These prices are based on a tradesman’s rate of £150.00 per day and a labourer if required at £100.00 per day. This includes the cost of buying and collecting any materials, dumping any waste if necessary and any incidental materials they will need. The minimum price will usually be for a half day)

How Much Does it Cost To Fit a Waste Disposal Unit?

waste disposal unit

These prices are based on the 2 tradesman’s rates of £200 per day. They include the cost of buying and collecting any materials, dumping any waste if necessary and any
incidental materials they will need.

(The minimum price will usually be for a half day)

Job 1
Replace an existing (broken?) disposal unit. He will charge half a day………£100.00

Job 2
Fit a completely new unit in a suitable sink. This will require a
fused, switched power supply under the sink (luckily, there are nearby cables)! and an “air switch” sited on the worksurface. Let’s suppose the electrician is happy fitting the actual unit and adapting the existing waste pipework.

He will charge for 1 days labour…...£200, plus switches etc….£75,

In each case, you will supply the disposal unit at a cost between £70-£400.

For your must-see guide to Tradesmen's Rates please click on the map…


A Price Guide and Information Sheet on Fitting and Installing a Waste Disposal Unit

If you want to replace your existing one, ignore the next bit and go to Job 1.

I’m assuming you don’t have one already if you’re reading this. I’m also assuming you have everything else worth buying and are just desperate to get rid of yet another £500 on a gadget, any gadget!

I mean they’re not essential are they? What’s wrong with getting the kids to finish all their dinner in the first place, or scraping the plates into the bin or starting a compost pile?

OK, your kids are like mine and you live in a flat, point taken! You will probably need two men, unless you can find an electrician who likes to do a bit of plumbing on the side.

The electrical supply to the disposal unit has to be a fused and should incorporate an isolating switch. This will probably have to go under the sink, or the “above worksurface”
tiling will get ruined. You then need some way of switching your disposal unit on, when you want to use it.

If fitting an easily accessible switch is a problem, you can have an “air switch” fitted into your worksurface. This is discreet plunger, which uses air to operate an actual switch under the sink.

It is illegal (and rather silly) to undertake any electrical work in a kitchen unless suitably qualified. Probably only one in 100 plumbers are legally qualified to undertake electrical connection work. If he says he is……..check.

There is one more stumbling block which begs the rather indelicate question. How large is your waste hole? (funny, it sounds Welsh for some reason). Waste disposal units require a larger hole than normal to operate properly. You
can get them to fit a standard 1½” hole but they aren’t very efficient. Will you need a new sink as well?

Right, this is the final stumbling block and you won’t have a clue what I’m talking about but your plumber will. Make sure the unit is connected to a “P” or an “S” trap, bottle traps don’t work!

A-Z of Job Pricing