How much does it cost to build a washroom in the basement?

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Posted by: from Toronto
9/18/2012 at 11:43:20 AM


We have recently purchased a new house in toronto, (built April 2012) and have an unfinished basement. The builder has provided rough-in (pipes installed) for the basement washroom.

I would like to know how much would it cost to build the washroom.

Any advise and suggestions in this regard would be higly appreciated.


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Date/Time9/18/2012 at 1:19:24 PM

Hello :

I build custom homes on country lots and carry $650.00 to $700.00 per pipe (or per fixture) thats to the outside of the building the hookup to the sewer would be extra to that as likely the plumber does not have control over the cost to the Township for hooking up and that would be outside his realm of responsiblity.

All the Best.

John Holgate

General Manager

Aline General Contractors Ltd.

Barrie, Ontario

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Date/Time9/18/2012 at 2:16:55 PM

That would depend on a lot of things and what your budget is. You could go super cheap and do it yourselves for a few hundred, using used fixtures and tiles. Just get someone to do the labor if you are unable to do it yourselves. And depending on how big it is, the complexity etc, that will determine how many hours of labor you will have to pay.

In terms of money you are looking at between $500 to $15000 and higher for anything really crazy.



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Date/Time9/18/2012 at 3:08:43 PM

Hopefully the pipes are located in the proper places for the items you have in mind for the bathroom. On numerous occasions we have found it necessary to open up the floor to re-route pipes. It sounds like no walls are up yet nor any electrical. Depending on materials costs and the amount of labour required, the full renovation will likely cost between $ 12,000. to $ 20,000.

Be sure to get 2 or 3 written estimates. The companies should provide you with detailed breakdowns of the costs showing individual costs for the various materials and labour segments.

Be fully comfortable with company and the quote before proceeding. All the best with your project. John.

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Jason from Triple D in Toledo
Date/Time9/18/2012 at 4:22:59 PM

To build a washroom is all in the materials that you pick to finish as well, if you have high tast it will cost you more as you know. The average bathroom goes from 3000 to 5000. That is the middle of the road matirials.

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Date/Time9/18/2012 at 11:03:46 PM

It'll vary drastically from contractor to contractor. Just make sure you do your due diligence, get 2-3 quotes, verify contractor has proper liability insurance and most importantly make sure you feel comfortable with them. I'd also suggest you look into the history of the company and how long they have been around; this speaks volumes a lot of the time.


Steve Soper, Owner

Mr. Handyman of Richmond Hill and Southwest Markham

Phone: 289-203-1150

Fax: 289-203-1151

346 Newkirk Road., Unit 9

Richmond Hill, ON., L4C 0A9

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Date/Time9/19/2012 at 2:52:25 PM

As one of the contractors that have already responded have stated the overall cost of the bathroom depends on the scope of work involved/materials costs, first off if you need the space framed in, electrical done, ventilation installed, lighting etc as well as fixtures, tile and all the finishing details if you are paying a reputable contracting firm to do this work then expect to pay 12k upwards to 20k.

Any basement bathroom should be ventilated to outside and use a good quality low noise fan, you need a minimum of two 15a circuits brought to bathroom, one for gfi the other for lighting, fan etc. Again this is assuming the roughins for toilet, sink and tub are done properly, you will want to verify that this is done before doing anything, make sure that the builder has properly vented each pipe so they work.

Make sure the firm building this bathroom uses a licensed plumber and electrican for these parts of the work, you will need permits for plumbing and electrical, if a contractor uses their own unlicensed guys for plumbing or electrical you are taking a chance that the work is/isnt being done properly and safely.

Some of the prices given to you already are unrealistically low. Expect to pay for a good job and get several quotes,make sure the firm carries liabiliity insurance to protect yoursleves.

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Date/Time10/1/2012 at 1:21:18 PM

We usually budget 100 hrs for a standard no frills bathroom construction. Materials and subs are about 5000 again. (mostly tile and plumber). So off the cuff costs are 10k and up

Keep in mind that the more complex you choose, the more cost it will be. A fancy shower system that will cost you 20k to deliver it to your house will take much longer to plumb than an 800 dollar acrylic tub and surround. So in the end, fancy will usually cost more to install.

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Date/Time3/25/2013 at 11:14:06 PM

I usually get the building materials and let the customer choose the finishing materials. That way, depending on the finish the customer wants will reflect in the overall price. Another factor is the size an location of fixtures.

But usually my price is between 6K-9K barring any unforeseen problems such as structural problems uncovered during demo of old bath. That again is for the building materials and the professional labour.

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Brad in Sutton
Date/Time6/5/2017 at 5:41:35 PM

Brian from the painting company is quoting numbers for a plumbing job. Why?? $500 will get you a unlicensed handyman. Be sure to save about 10x that sum so you can pay a qualified professional to come and fix the handyman's mess.

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