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Published March 26, 2024

Basement Bathroom Plumbing: Things To Consider Before Contacting A Plumber | Normal, IL

Covenant Plumbing is your trusted local plumbing & drain experts in Bloomington-Normal, IL. and the surrounding areas since 2006.

Written By
Lori Stickling
Basement Bathroom Plumbing: Things To Consider Before Contacting A Plumber | Normal, IL

Installing a bathroom in your basement is a wise idea if you are ever hosting guests or you’ve got a rental property. Also, a basement bathroom is ideal for families that love to spend most of their time in the basement. In addition, adding a bathroom in your basement helps boost the home’s value.

While having a below-ground bathroom in your home is the ultimate convenience, it’s certainly never a DIY job. Thus, it’s better left to the professionals due to the technicalities involved. For instance, a basement bathroom in an old house can be complex because plumbing rough-ins for basement plumbing may not be as easy as in a new building.

For anyone considering a basement bathroom, there are crucial factors to think about to achieve a successful remodel. Keep reading to learn what you need to consider before dialing a plumber near you for bathroom plumbing in your basement.

Permits and Zoning

As a homeowner, it would be wise to contact the local building authority before ringing your plumber. It would be best to familiarize yourself with the legal restrictions on construction projects in Normal, IL, and in this case, the plumbing of a basement bathroom.

Home improvements of this kind are likely to come with deed restrictions and zoning contingencies to ensure your safety and that of your family in the future.


For those whose basements are big, mapping where to locate your new bathroom may not be difficult. Ideally, the new bathroom should be placed in proximity to the home’s current plumbing and electrical system. Plus, it’s always a smart idea if the plumber positions your basement bathroom directly below the one on the floor above to reduce the cost of utility hookups.

Basement Bathroom Design

Another thing to think about is the kind of basement bathroom you want. Do you want a half-bath with just a toilet and sink, or do you need a full bathroom with a stand-up shower or a bathtub? This depends on your needs. Whether you want a heated bathroom floor, some warm colors, a traditional or modern bathtub style, or a mix of both, it’s all your choice. You can ask your plumbing service provider in Normal, IL for the available bathroom designs you might want for your basement.


As much as you want a particular bathroom design for your basement, it might be quite expensive. You will have to pay the plumber and cater for the extra plumbing you need in the bathroom. Although pricing for plumbing services varies, plumbing for a basement bathroom could cost between $10,000 and $15,000.

Ventilation of Your Basement Bathroom

Basements tend to be damp and cold since they lack natural ventilation. The moisture trapped in these dreary spaces favors mold and mildew growth. This implies that going for a shower or bathtub may be the least of options unless they are completely necessary.

Remember, such installations require proper ventilation. Every bathroom needs ventilation, but a basement bathroom needs it the most. A trained plumber must install a high-powered ventilation fan to dry up the space. You might also need an exhaust fan timer, so don’t forget to ventilate the bathroom.


Space is important to keep in mind, especially if you want additional installations in your bathroom. Besides the tub, sink, shower, or toilet, a laundry area in your basement bathroom is a good idea. However, such an option could add to the complexity of handling overflows. As such, you must hire an experienced plumbing contractor to ensure a floor drain and the dryer vent has some access to the exterior wall.


This is a critical factor when it comes to basement bathroom plumbing. Gravity helps wastewater and dirt to move in a typical above-the-ground bathroom; thus, there should be enough fall to drain wastewater in the bathroom below the ground.

Your plumber has two considerations while evaluating the plumbing rough-in for your basement bathroom plumbing. Firstly, it’s the size of the pipe. If the current pipes are relatively small, your contractor may have to install wider pipes to accommodate the basement drains.

The second thing the plumber will need to assess is the depth of your plumbing. If your current sewer lines are deep enough to use gravity-assisted disposal, constructing an underground bathroom will be simple. Otherwise, there may be other alternatives the plumbing service expert may need to take.

If you use the city’s sewer line, the plumbing technician will have to install a backup water valve in the new plumbing. Again, don’t forget that doing so will require a permit. Thus, you must consult with the plumber before the project commences. If you use a septic tank, it means your waste doesn’t drain into the city line. In such a case, you’ll need to ensure that the tank is deep enough for basement plumbing.

It requires extra effort and money if your home’s drainage lines aren’t deep enough. It may require removing a portion of your basement floor and excavating under it. This may not be an ideal option for some homes to realize the needed fall. Besides, special equipment is needed for this kind of project. However, all these don’t mean that it’s impossible to construct a basement bathroom this way.

Covenant Plumbing: Your Go-To Place for Professional Plumbing Services

Having known what to do after establishing a plan for your basement bathroom remodel or a complete build-up, contacting the professionals at Covenant Plumbing is the next step. We’ve been serving Normal, IL and the neighboring areas since 2008, and our plumbers are knowledgeable and experts in plumbings of all nature, including 24-hour emergency plumbing. We look forward to your partnering with us today.

Mike M.
Our water heater went bad and leaked all over our basement floor. We called Covenant Plumbing as a new customer. They came within 30 minutes and replaced our water heater with a new one the same day. They were very helpful, professional, knowledgable, and I highly recommend them!!!
J Scott F.
Judy E.
Pleased with the quick and efficient service.. Darren and his partner were very professional and courteous. Would recommend strongly.Had an emergency water heater installed this morning
Kimberly T.
Shane came out and finished a major repair with the highest professionalism. I will definitely be using Covenant Plumbing again in the future, and I will be recommending them to my friends and family.
Moon B.
Our plumber arrived right on time and made the process easy and simple!
Lois C.
Cameron quickly found the source of the leak I saw on the basement floor. The 22 year old toilet in the main bathroom needed to be replaced. Cameron was kind enough to show me a few different affordable options. He and his assistant were professional, courteous, and neat. I would highly recommend Covenant Plumbing If you looking for a reliable plumbing company.
They have always been very wuick response time, are very careful with yiur property, explain things and provide options! Highly Recommend
ali K.
Shane and Dayton were both so prompt and courteous! Very professionalAnd got the job done. Very pleased!
Brent A.
Daren did a great job. Will be using them in the future!
David D.
Had a clogged drain in my basement - they were able to come out next day and fix it in a couple hours for a fair price.
Patty N.
As always we received excellent work from Covenant Plumbing. Arrived on time, got the work done in a timely manner without rushing through it and cleaned up after. I highly recommend Covenant Plumbing.
Lorraine G
Covenant has completed 3 jobs for me, all done very professionally by very friendly technicians. Thank you!
Gregory L.
Darren didn't take long enough as I wanted a longer lunch! Great service and finished product.
Mary Fox C.
Excellent service! Came out quickly, fixed my drain issue, and the techs were professional and polite. Highly recommend.
Wanda W.
Update 5/28. Shane M did an excellent job explaining the issue! This is a great company.Miles F was very professional and courteous. He fixed everything that I needed and showed me what was broken. I did have a problem with my hot water after Miles left, so I called the company and they sent Cameron L right away. Cameron identified the issue and fixed the issue. This company did an excellent job. The price was a little high, plus the quality and guarantee is worth it. Please use this company for your plumbing needs.
Marcia M.
Excellent and positive experience. Knowledgeable.
Steve B.
I had a water leak and Covenant Plumbing came right out to fix the problem. The plumber was very professional and was respectful of our home. (Wore booties to protect the floors) I will have them again when I need a plumber. Thanks
Deepak S.
Matt W.
Incredibly friendly staff that does quality work. Very happy with a gas line installation for a pool heater. Extra star for the embrace of technology ( texting, online scheduling, iPad photos of work done)
Sarah B.
Very pleased with the knowledge, professionalism, and friendly personnel at Covenant Plumbing.
lily C.
Very responsive a professionsl.
I called for an estimate on running a new gas line to my pool heater. The person on the phone was friendly and very helpful in setting up an appointment that very day! Shane and David came on time …. Introduced themselves …and got to work quickly. I had an estimate within a half hour and the estimate was half as much as the one another plumber had given to me! Shane had suggestions on how best to do the job and indicated that he had completed lots of similar jobs. I had a great deal of confidence in him right away.Then I asked how long the job would take and how quickly they could schedule it. That’s when the big surprise came! The other plumber had told me he would have to check the schedule and said “maybe within the next two weeks.” Shane from Covenant Plumbing said “we can do it right now …. and it will only take a couple of hours.” I said “let’s do it.”Shane and David finished the job in a little over an hour and the new pool heater fired up right away. The new gas line looks great and works great. I could not be happier with the work they did for me. From my initial phone call and the friendly voice on the other end of the line to the completion of the job …. It was a great experience and I wholeheartedly recommend Covenant Plumbing!And recently…….Covenant did their annual inspection (a great bonus they provide) and found a few issues that needed repair. Jordan (a former Marine) found the problems …. did the repairs and even replaced a faulty toilet in just a few hours. Once again, I could not be happier with Covenant Plumbing. They are my plumbers!
Josh K.
Cameron was very professional, fast, and effective. He also was very patient running me through my options! Thanks again! Highly recommend. Within 3 hours of my hot water heater breaking they came and had it replaced!
Debra E.
Covenant installed a new water heater the same day I called! Cleaned up and left no mess, only a nice new water heater! Recommend!
Emily S.
They responded quickly in an emergency and did a wonderful job for us! We have used them for a variety of plumbing jobs. I recommend Covenant for all your plumbing needs.
Miranda N.
Sivaraj B
Covenant’s expert (Shane M) came to fix the water softener and he came on time and did thorough investigation and he was able to find the issue and fixed in less than 20 mins. He explained the issue in detail and also the fix. Good job Shane and covenant team and keep up the good work.
Steve M.
Covenant service is over the top amazing. Constant text updates to confirm appointments and progress of plumber to our home. Cameron was exceptional and installed our new shower/tub faucet as well as providing estimate for hot water heater.He took the time to talk me through options and made us feel confident to proceed with replacing the hot water heater.I highly recommend Covenant.
Mary Ann O.
Davis D.
Excellent work and great customer service. They were responsive, helpful, and honest.
Josh S.
Great service. Quick and reasonably priced.
Sailendra B.
Jack A.
Outstanding service! Will use again.
Branson W.
Quick, friendly and professional
Sandra H.
I would highly recommend Covenant Plumbing. My new water heater was installed the next day after I called them. They arrived on time and did the installation,clean up, and haul away quickly and efficiently. Everyone was very polite as well as professional.
Sudha M
The Shane the technician was really knowledgeable and explained well about the service that we requested that we were very happy to go with the options provided.
Mike W.
Our sump pump went out sometime in the last few days, not sure exactly when. Called Covenant Thursday AM, and by 2:00 same day, Darren was out to provide several options for replacement. We had a new one fully installed a half hour later. Ready for Mother Nature.
Jessica Lynn S.
Really impressed with this company. Easy to schedule appointments online, timely confirmation emails & texts, texts to let you know they’re on their way, AND also WHO is coming with their picture and some personal info. I was home by myself and knew exactly who was coming to the door. All that alone made me feel good and no work was done yet. Kudos to Shane who explained everything, offered to cover his shoes to protect my floors, answered all of my questions, gave me options, and had a van full of anything he might need to help. Total professional, kind, and courteous, and as I did my work from home, he did his work at my home. I signed and paid for everything on the spot via a tablet and received my receipt via email instantly. Highly recommend Covenant Plumbing to anyone in central Illinois.
Nicole G.
Amazing help with what should have been an easy sump pump pop up job. Patience, determination and perseverance got the job done. We couldn't be happier with service and kindness. Highly recommend for any plumbing service.
Susan B.
Paul C.
The guys from Covenant have been great.
Chris C.
Professional high quality work!
Papa R
I had a delightful appointment with this company today. Darren the technician was thorough, was honest and gave good advice. I’m looking forward to working with Covenant Plumbing in the future.
Michael H T.
Good work
Pam W.
Fast and professional service. Definitely recommend!!
Carol M.
Darren was right on time, explained his diagnosis of our problem and gave us options to consider. Good details for our decision making and no pressure. Very courteous.
Covenant Plumbing came quickly to address a sink that was leaking and got the issue fixed very quickly!
alex B.
They were on time and professional

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