How To Remodel A Bathroom - 2020 Guide | Flooring by Sammer

How To Remodel A Bathroom – A Step By Step Guide

I have been doing bathroom remodeling in Dallas and the surrounding areas for over 17 years.

In that time, customers have asked me many questions regarding their projects and most of these revolve around not knowing where to begin!

So I decided to put together this little guide in order to answer your most common queries, no matter where you live! That way, you also see the process involved in remodeling your bathroom from start to finish. I’ve included a video afterwards so you can see it all come together.

Always check with your city and contractor to make sure the right permit/s are pulled and be very wary of those who tell you “you don’t need a permit!”. If you are moving plumbing or electrical lines/circuits, introducing new ones and/or changing the overall original plumbing/electrical set up; you need a permit.

Assuming this is done and you’re good to go, the first thing you want to do before hiring anyone or tearing anything out is picking out your products!

So things like tile and mosaics, faucets, sinks, tubs, lighting, etc. should be at your home beforehand. Try to get these from one place as it’s a whole lot easier to keep track of your purchases when it’s from a one stop shop. Here are the two best stores I’ve worked with for many years for bathroom remodel projects: 

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demolition of shower

Demolition of shower.

1. Demolition

OK, first step is the demolition process.

Depending on what you need done, whether it’s just the shower or the whole bathroom, demolition can range from just tearing out the shower walls to stripping the entire bathroom. That’s when all of the old flooring, walls, sheetrock, cabinets and even tubs and fixtures come out.

The goal at this stage is to just rip out what’s not going to be needed for the future bathroom. It also gives you the opportunity to examine any damage behind your walls that you may not have been aware of. We often find damaged 2 x 4’s and water damage to many parts of the wall/s and/or shower pan once tear out is complete.

This is important because you can actually see what the damage is before repairs are done.




hardibacker on shower

Shower valve roughed in. Pan completed. Waterproofing next then ready for tile work.

2. Plumbing & Electrical

Stage two of the process is to get your plumbing and electrical work squared away.

This usually involves roughing in your shower valve and any other required plumbing like body sprayers and so forth.

Now the plumber will have to return later for some final finish out work. Their initial visit however, is to complete all plumbing that goes behind your walls. This includes running new lines or rerouting them in case any fixtures need to be moved such as commodes, vanities, etc.

The electrician at this stage can run their wires in case you want to install lighting such as cans and it also gives them the opportunity to examine your existing wiring.

I’ve lost count the number of times we uncovered faulty wires, poor workmanship and even outright hazards. One of the most common problems we ran across was previous contractors “backstabbing” wires into the back of switches instead of securely wrapping them around.

This is also a chance to have your GFI looked at, as every bathroom must have one according to code.

Anything relating to plumbing and electrical that goes behind your walls is done at this point. Depending on your city, this is the time to call out the inspectors for a plumbing and electrical rough in inspection. They just want to make sure the work is performed right and up to proper building standards.

So far, you can see how methodical the process is.

It allows you to check as you go in case something needs attention whether it’s during the demolition, plumbing or electrical phase. That way, you will always know what is going on before the next stage.

3. Shower & Tile

completed tiled shower

All done.

Ok please pay particularly close attention here as this is very important: After your plumbing and electrical are done and the backerboard goes up, this is when the shower walls need to be waterproofed.

There are many ways to do this but the most common here is to apply two coats of a roll on membrane,  making sure the gaps between the boards are sealed then seam taping them and the corners. When the shampoo niche is cut out, waterproof it the same way.

Make sure either you or your contractor has this waterproof membrane. Once dried, this is when you start building the shower unit and/or tile the floor, depending on the installer.

Before tiling the bathroom floor, consider a crack isolation membrane instead of hardiboard on your subfloor if your bathroom is upstairs and/or your home is prone to shifting or foundation movement. They help stop tile from cracking during minor movement. 

Since this is when your shower starts coming together, it’s important to let the installer know what sort of set up you would like. 

For example, go over the dimensions to make sure it’s exactly as you want it. Point out where you would like the soap niche/s (aka built in shampoo boxes), steps, bench and details of this nature. 

Even the direction of the tile should be finalized. Do you like it straight, on a diagonal, offset or custom pattern?

Once this has been figured out, a competent installer will start building the shower pan ensuring to use the correct liner and run it high enough up the wall for future moisture protection. Most importantly though is they float the pan with concrete and get the angles right. If they use concrete as the base of your pan to float (hardly anyone uses acrylic/ cheap builder’s grade materials anymore), it will need 12-24 hours to dry.

Then they will return to continue the rest of the work.

While this is drying, they have some time to take care of any other minor construction you need in your bathroom like a pony wall or frame for a drop in tub.

Once the shower pan dries they return to tile the walls and put in the shampoo niches as well as tiling the shower pan and ensuring the edges have the correct finishing with bullnose.

Something to keep in mind, is not all tile comes with coordinating bullnose pieces. If the installer is experienced however and knows what they are doing, they should be able to fashion bullnose pieces out of the existing tile providing it is either stone or porcelain. 

Once the shower unit is completed tile wise, they should bring the shower glass contractor to measure for the unit as this takes between 7 to 10 days from the order date to install. That way, you have a head start so can be installed right after everything else is done.

4. Wall Work

This of course, will depend on what you’re looking to get done.

You may just need a fresh coat of paint or you may need all of the sheetrock replaced.

Now if you are getting your whole room’s sheetrock replaced, make sure the insulation is to your satisfaction. In bathrooms were it can get colder than other rooms, good insulation is important for all types of weather. This is the stage to replace it.

Once the sheetrock goes in, the painter/s will then tape and bed it and complete all of their wall prep prior to painting. Be sure to specify what sort of texture (if any) you want on the walls prior to painting.

So up until this point we have all the demolition, electrical, plumbing and shower work done.

Now the rest of the bathroom really starts coming together!


tub tiled complete

Bathroom completed!

*The next phase is a matter of taste because some people like to leave painting to dead last since they want behind the vanities, mirrors and anything else to be painted; others do not care so much.


 5. Final Stages

Whether you paint before the vanities go in or after, there are some minor items that need attention:

  • If the countertops are separate from the vanities, then the dimensions of the vanity/ies must be measured by the contractor during the initial stages of the project. That way, they can go in as soon as the vanity/ies are installed. Yes, the vanities need to be installed first so the fabricator can measure for their precise cuts and edges.


  • You may need to bring out the plumber and electrician again to trim out your shower, install commodes, your vanity sinks and faucets as well as any required lighting trim. Be sure to have your lighting fixtures ready for installation at this point. 


  • Any final finish work like baseboards and caulking is usually done by the painter/s but it’s a detail that’s often overlooked during a larger sized project. Don’t forget!

 6. Shower Glass

The shower glass portion is usually the very last thing that goes in.

As mentioned earlier, it takes between 7 to 10 days to get the unit ordered cut and installed. Yes, you can order pre-made ones but you better be sure your specifications are exact as the slightest variance can mean leakage.

Make sure you specify what color hardware you want on your unit for things like the handles, hinges and if required, the top frame. If you’re doing a standard shower unit, a 3/8th’s thick tempered glass unit is the way to go. Check with your contractor for any options like low iron glass (removes the green tint) or Shower Guard which permanently seals the glass so you never get water stains.

95% of units we do are frameless and if you can do it, I would strongly recommend the same.

Final Tips

Here are three handy tips to keep in mind that I have shared with clients over the years:


1. Don’t spend too much on faucets. 

Now that may seem counterproductive for someone who remodels bathrooms to tell you that, but in all honesty, they are artwork. You are better off shopping a well-known brand like Delta, Moen or Kohler rather than go for some hyper exotic brand imported from Germany.

The main reason why I say this is the feedback from plumbers over the years has always been the same – the more expensive it is, the harder it is to get parts for it if something goes wrong. I have had cases where we had to special order a gasket for a faucet that was leaking and we waited 2 1/2 weeks for it to arrive from Norway.

Stick with local, well-known brands.

You can browse these brands here.


2. Tile size matters.

The larger the tile, the less grout you have to worry about in terms of cleaning.

Now I understand some folks like the smaller, rectangular, subway type tile and that’s fine too. I’m just saying if cleaning is an issue for you, then buy larger tile and install them both in the shower and the floor. It also makes the area look bigger.


3. Stone remnants can help

If you’re doing just a couple of small vanities, you don’t actually need to purchase an entire slab of stone like marble or granite.

Ask your contractor about any remnant pieces they may have at the shop as they often have them and for significantly cheaper than buying an entire new slab. Once you buy the whole slab, it’s best to use it all. Otherwise, the fabricator will sell it off as a remnant so you may as well use it!



Q: How long does the process take from start to finish?

A: This is going to completely depend on a number of things like the contractor, scope of job, lead times for subcontractors and many other factors. If you are doing more than one bathroom it’s always a good idea to do one at a time so you have one always working. It could take anywhere between a few days for a small powder room to a couple of months and beyond for larger jobs.


Q: When do I buy my fixtures and faucets?

A: You’re going to make life a whole lot easier for everyone if you have everything at the house prior to the job starting. This is because the plumbing is one of the first things that needs to be done after the demolition. If you do not have your valve and other required plumbing parts, then the contractor will be unnecessarily delayed. You end up having a torn out bathroom sitting there and nothing gets done. Having everything there though sees you having your bathroom completed sooner.



Q: Where do I buy them from?

A: Make sure you check out the best shower faucets and tub faucets here first.

In the case you don’t find anything there, you can always get them from your local hardware store like Home Depot.

The main advantage with speciality stores is the sheer selection you have compared to a Lowe’s or Home Depot.

However if you’re not fussed about fixtures and faucets then your local store works fine.

Keep in mind, if you’re buying online; make sure you buy everything at once so you don’t incur separate shipping charges. Most stores will waive the shipping charge if your purchase is large enough.


This is a general guide of what takes place in a typical bathroom remodel. I hope the pictures and video helped this overview to really clarify everything.

Of course there are variances between projects which may extend or shorten completion times. Replacing cabinetry for example, could take many weeks alone so be mindful of this prior to tearing everything out.

Be sure to find someone experienced and competent at bathroom remodels and whatever you do, never just go for the cheapest price. 

Please check out my article here to help you sniff out scammers.

I hope this has been helpful to you and if you’re in the Dallas area and need some help with your bathroom, drop me a line.

All the best!