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Blau Sudden Service As such, we've completely revamped our company web site to bring you up to date on everything that's new with Blau Sudden Service. At the same time, we'd like to remind you of what hasn't changed, especially the core values that have defined us since we first opened our doors in 1960.

Today, like always, we guarantee your complete satisfaction for all your plumbing, heating, air conditioning, water filtration, indoor air quality, drain cleaning, and related home comfort and safety needs.Our uniformed technicians will answer all your questions and make sure you're both confident in our recommendations and satisfied with the end result.
Services
More than 50 years ago, Blau Sudden Service suddenly appeared on the local home comfort scene. The year was 1960, to be exact. Two full - and fulfilling - generations ago. From the beginning, we set out to be the very best provider of plumbing, heating, air conditioning, drain cleaning, and related services for home owners and light commercial operations throughout Southeast Wisconsin.
Blau Sudden Service is member of The Nexstar Network, an international "best practices" association of plumbing, heating & cooling, and electrical contractors. As such, we fully subscribe to our association's Code of Ethics, and practice all of its component parts daily. WE WILL SERVE our customers with integrity, competence, and objectivity.
If it's Broken, Leaking, Splashing, or Just Plain Not Working, It's Blau Sudden Service to the Rescue. And that begins with an annual home plumbing inspection. If you haven't had one in a while, or not at all, now's the time. During the process, we make sure everything is in proper working order. We look for problems in the making and show you how we can fix them quickly and more affordably. We also look for any potential safety hazards, such as gas or CO (carbon monoxide) leaks from your gas water heater.
At Blau Sudden Service, we can repair all water heater makes and models. We also provide expert water heater inspections that cover all working components and any potential safety hazards, such as gas or CO (carbon monoxide) leaks. When it's time for a new water heater, you can count on Blau for the expert advice and right equipment for any size house or family.
Reviews (39)
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Paul Veldhouse
Jun 14, 2022
Theo was great. He had some initial trouble only because he was so thorough and found a leak. Didn't cost extra. Came back a whole extra morning and got the job done putting in a natural gas line. Would definitely hire again.
Lorie Durfee
May 08, 2022
New home owner - 3rd day of move in a small swimming pool formed around my basement drain. I panicked - Kyle from Blau Sudden Service came right away. He went above and beyond fixing the drain and explaining everything that caused the problem and what he did to fix it. Excellent, respectful service. Service: Plumbing leak detection
Carol Kranker
May 07, 2022
The phone receptionists are very helpful and courteous. The technician came close to allotted time, was efficient and cleaned the area when finished. We have used Blau for many years, always satisfied. They know their business.
Dave Jones
Apr 09, 2022
I had Blau come out to clean out a sewer line. I was original quoted 300- 500 dollars for the work. When the technician came out he immediately charged me almost 600 dollars and had me pay before the work started. In under 30 minutes he came up and say he couldn't get it cleaned out and didn't refund my money. There was also feces and small pieces of toilet paper on the walls by the sewer clean out that wasn't cleaned up. I had roto-rooter come out the next day and they got it unclogged, cleaned up, and was very professional. Blau Sudden Service is the worst company I've ever dealt with.
Colleen Frank
Mar 22, 2022
David was on time, professional, courteous, nice and super knowledgeable (like all the good things). He diagnosed the issue with our jetted tub quickly! And while our issue turned out to be electrical I have no doubt he could have fixed anything. Great guy! He referred me to an electrician, cleaned up and was on his way. I would highly recommend Blau plumbing and would definitely use them again!
Lisha Zhou
Feb 16, 2022
They're very professional to check and explain the leak and repair proposal to Client when project in progress. Also find out and tell the homeowner which leak should be responsibility of We Energies, to avoid client over pay the work. Many thanks to David L., with rich experience for nearly 30yrs in this sector, he is super helpful to assist me in communicating with We Energies Customer Service over phone to figure out the best solution, when I had limited knowledge on gas pipe leak problem. He also did very good job on his work. Strongly recommend on their quality service.
S. M.
Jan 21, 2022
I have been having problems with my Trane furnace. Dave came out to look at it and basically stuck blau plumbing stickers all over it, my water heater, charged me $350 and said he couldn't find a problem. I ended up replacing it yesterday. Blau's quote said I had to pay for their maintenance plan in order to have a valid warranty from Trane. I chose to buy a Lennox through Costco. Much better value.
Ricky Sosa
Jan 18, 2022
To start the the tech was supposed to arrive between 10am and 12pm, but didn't arrive until after 3pm. No call as a heads up either that they were running late so we were left in the dark there wondering if they would show until we just ended up calling ourselves to check. Then the issue was to repair a leak for underneath one of our sinks in our basement bar area but was told to just remove the existing plumbers putty and instead seal with silicone putty.

I appreciate the notion to save us some labor costs but in all honestly we called a professional for a specific reason. TO HAVE THEM DO THAT. No matter how simple the task was. So instead we essentially paid a $60 service fee for advice. Not too thrilled about that. Would've rathered just paid the extra money to have it done and over with instead of paying for advice and then having to do it myself now.

Not sure what the labor costs would have been but if within reason i would have been willing to pay it. My impression is that perhaps the tech was way behind schedule for the day and wanted to just move along and not sweat the easy stuff to try and get back on schedule. I'd be willing to negotiate a second opportunity if management is willing to send someone over again but this time waive the "outcall truck fee" entirely and we just pay for the labor only since we already paid what we paid today.
Steve Censky
Jan 14, 2022
Jim was outstanding. We had a gas leak that was very difficult to find and even more difficult to fix due to its location. He was extremely efficient and professional throughout the entire process. Great guy. I would highly recommend Blau Plumbing and Jim. Thank you. Service: Plumbing leak detection
Kevin Lane
Jan 03, 2022
I wanted to thank Theo and his apprentice for their recent visit to repair my boiler. I was without heat during the coldest day of the year. They arrived promptly and diagnosed the problem quickly and got my heat back up and running. They also thoroughly explained my options for future replacement of my HVAC system. Honest, courteous, and very professional. Highly recommend!
Jana Rusk
Sep 01, 2021
The service was great! They were able to come the same day I called. The technician did a great job explaining the problem and possible solutions. Price was very reasonable and fair!
Mary-Clare Fehr
Jul 01, 2021
Very knowledgeable and willing to explain what he was doing and why. Even gave me tips on cleaning the AC unit. I will go nowhere else for my heating, cooling and plumbing. They installed my water heater in 2016, have serviced my main line several times and my furnace! Professional, reliable and on time when in need!
Chad Sperzel-Wuchterl
Jun 22, 2021
Theo did an excellent job repairing our water heater. Very kind, courteous and answered all our questions. A great experience! I highly recommend Blau Plumbing. I will use Blau next time I have a heating, cooling or plumbing situation!
Tess Lapp
Apr 26, 2021
We had a little plumbing issue over the weekend. our basement sewer backed up. Blau Plumbing fixed the problem within a matter of hours. I would highly recommend contacting this company for any of your plumbing needs.
Mary Howell Taylor
Apr 06, 2021
Blau did a great job with the installation of our central air conditioning. They were polite professional and we will definitely use them again in the future.
John Scaffidi
Mar 10, 2021
When I use Blau plumbing I always know it will be fixed correctly with no worries. Theo mostly is the person who services my needs and he is professional, courteous and extremely knowledgeable. I would never use any one else
Glenn Mieritz
Jan 19, 2021
Very efficient and quality service. Knowledgeable service personnel, kept me on on all steps of the replacement of one water heater. Reasonable cost.
Rick Horowitz
Jan 11, 2021
Helpful service, safety procedures followed, professional attitude, all diagnoses and recommended steps explained.
Jane Dailey
Oct 31, 2020
Their service is great; good experienced servicemen who are always neat and friendly.
Jonathan Misirian
Sep 16, 2020
Prompt service and expertise of the technician made this a great service call.
Phil K.
Aug 23, 2020
Called and set up appointment to inspect plumbing and well pump system.we told them that we lived 45 minutes away from the location of the residence that they were to inspect.they said they would call us when they were on their way and they never did. They gave us a estimated time of arrival between 9 am and noon.with 11:00 estimated time of arrival.received a call at approx 11:30 stating that we were next on the list.it is now 2pm and no call / no show.

We called them to find out what was going on and they told us we were next on the list.still 2 and 1/2 hours later from 11:30 am. THANK YOU FOR WASTING MY SATURDAY OFF OF WORK TO GET NOTHING ACCOMPLISHED! I HOPE OTHER PEOPLE GET TO SEE THIS THIS IS! DONT SCHEDULE WORK ON SATURDAY IF YOU CANNOT MEET THE DEADLINES! I WILL BE TAKING MY BUSINESS SOMEWHERE ELSE!
Jewel Y.
Feb 14, 2020
We contacted Matt Theo for a heating issue. He was so impatient, unreasonably pricey, and lacked cultural competency. His nasty attitude was obvious upon his arrival. He quoted us $1104 to A) clean condensation trap at furnace, B) replace flexible gas line with hard pipe, and C) rework vent termination to be proper. We refused to pay this as it seemed unreasonable.

He was insisting that we pay as we "wasted" his time and rushed us to make a final decision. He asked for $200 for his travel and diagnosing the problem; we refused to pay this for an hour which mainly consisted of consulting. He eventually agreed lower it to $150 (which shows he was initially trying to rip us off if he was flexible with the price).

He offered to clean the trap, but stated it was at our risk if we turn on the heater (if it isn't safe, why would NOT recommend it?!). We have never experienced such poor, malicious customer service. Do not make the same mistake and lose even $150 on this shitty service. Give your business to someone else who actually cares about quality service, integrity, and honesty!
Carolyn N. Justin G.
Jan 08, 2020
They installed a new water heater and left and didn't check to see if there was a gas leak. Had to call fire Department. Tried to reach a manager and was told I had to email with my complaint and wait 10 days for a response. You almost blew up my house and I have to wait 10 days for a response. Unacceptable!
John L.
Dec 11, 2019
I wish I could give a zero star rating. I was in a pinch when my sump pump went out, and I'm not very handy. I chose Blau because after calling a half dozen other plumbers, nobody else was able to stop out same day. Theo charged me $800 (2 hours of labor) to install a $200 Jim Murray sump pump. At the time, I didn't know I was getting ripped off, but after talking to several plumbers who followed up with me today to see if I still needed service, I was made aware that I was taken advantage of.

Please stay away from these people and don't get burned like I did. I honestly don't know how these people live with their conscience! Theo also snooped around my basement and plastered stickers all over my furnace, water heater and water softener without asking and they don't come off!
J. P.
May 21, 2019
The worst plumber experience I've ever had. Tried them due to their good reviews on other sites. Had Theo and charged me $500 to replace a wax ring on my toilet. First time home buyer and was in a pinch with an issue that I wasn't knowledgeable about it. Hard lesson learned. Had a different plumber come in after and told me that Blau has a commission structure. First guy in the house gets a cut on any work that has to be done. This was the most sleazy experience I've ever had with a contractor. STAY AWAY PERIOD.
Daniel K.
Mar 28, 2019
Avoid Blau plumbing. They are one of the biggest rip-offs I have ever dealt with. They charge about $600 per hour in labor alone in my experience with them. They are just bad news.
Theresa B.
Jan 14, 2019
My husband called to have a new hose bib with shut off replaced. They did not give a price over the phone. He thought it couldn't be that much. They came and said they charge by job not per hr. The plumber was here for 50 min. It was $669. I called other plumbers in my area and they said it was $280 for the same services. When I called Blau, she told me it's per job not per hr.

I explained a job that takes less than 1 hr to do must not be that difficult and shouldn't cost $669! I let her know we will not be using their services again. In the future I will make sure to get estimates first (which they do not give). I have read many awful experiences and they should be posted with the better business bureau. Somehow they have an A+ rating.
Dave R.
Sep 12, 2018
I had a really bad experience with Blau Plumbing. From the very start, with a grumpy, condescending plumber at my door trying to upsell a new water main valve (that wasn't why they were called) who didn't repair my toilet properly, to contacting the Blau Office and being told that I needed to submit my dissatisfaction by email and allow "2 weeks" for a response, and finally being sent to collections before I had final resolve with Mr. Blau, I'm amazed that a business run like this can still be in business.

You can find better plumbing contractors elsewhere, that have more reasonable pricing and exceptional customer service. I called Viking Plumbing to fix what Blau couldn't, and they were great!
Mark B.
Aug 19, 2018
Blau charged my mother in law $199.00 to unplug a toilet. They would not give a price upfront except to say that there would be a trip charge of $39.00. They were on the job for 10 minutes and left a room saturated with fecal toilet water. They couldn't even pick up the rugs before they began work so they were soiled too. When they left they said "there was a little water on the floor" and that they "didn't have a rag to clean it up".

When I contacted them about the mess they said it was wet when they arrived, a complete lie. I tried to unplug the mess the day before and the floor was dry. I did not flush so the toilet would not overflow creating a mess I did not want. That's why I called "professionals". Unethical, dishonest, rip off company.
Pinecone T.
Apr 24, 2018
Be informed. Blau came up in a search I did looking for pricing on hot water heaters. Once on their site I realized they provide a whole lot of HVAC and Plumbing services. I was looking for a quote on no less than 3 HVAC/plumbing jobs for a new house I'd purchased. I loved the fact that they had a live agent online at 8pm at night to help answer initial questions.

I let them know I was not dealing with any emergency issues. The online rep was very eager to get my contact info and email before fully understanding what I needed. I was not ready to share. Later in the evening, after thinking it through, I decided to proceed with scheduling so I went to their online chat again. This time got a different person.

It all seemed good and I shared contact info and details on what I specifically wanted quoted and the day/timing I was hoping for. The next morning I got a generic email sent to me stating that it costs $29 to get a tech to my door. And then $80/hr (billed in 15 min increments) And I should call them to schedule. I did call because I do not understand why I would pay them to quote my job (which included, new furnace/zoned heating, a new hot water heater, and running gas line for dryer and to convert a wood burning fireplace to gas).

I was estimating the job would be $5,000-$10,000. There's no way I was paying them to quote my job. The phone rep (who didn't seem to appreciate the importance of nurturing the client relationship) was matter of fact about their policies and pricing - no exceptions. Wow. She finally agreed she could remove the truck charge if I hired them for the services. So, on to scheduling. Knowing they offer services into the evening hours I asked for a 5:00 pm appointment 3 days in advance. Nope, she couldn't do that.

She could only offer the first available opening after 5:00pm on my date. So, let's get this straight, they are charging me to provide my quote for thousands of dollars of work I'm interested in doing and can't even commit to meeting me at a time that works for me. No way! I don't like to do business that way and I'll be finding another vendor. All I can say is ask a lot of questions before you sign on, as there is the potential to spend a lot of $$ before you ever get started.
Andrew B.
Apr 10, 2018
Don't know the actual service skills because they made me sit at home and wait seven hours just to call and say they weren't coming. Tried to get me to schedule another appointment but would not waive the "truck fee" $29. I did not make another appointment.
Erma R.
Jul 31, 2017
Blau came out 5 times to unstop a kitchen sink. It was very expensive each time. Finally, I told my husband that we will not use them again because they just couldn't do it and also, I think the plumber was just trying to literally "drain" our finances. We called Evan Kiel to unstop the sink 2 years ago and it hasn't been stopped up since. DO NOT CALL BLAU.
Sue B.
Jul 24, 2017
One note: I disagree with comments another reviewer made. Theo did a great job, and I really like the stickers he put all the pipes, etc. My complaint isn't against him, he doesn't set the prices.
Tony T.
Apr 17, 2016
Echo what all others have said about this ripoff joint. Had a leak in my shower and the guy comes and immediately says I need a massive tear out and rebuild of my shower. He quotes me a price of something ridiculous like $10,000 so I noticed when he was "diagnosing" my problem he turned on the shower and pointed it in the corner and then comes downstairs with me in the basement and says the water is "leaking like a sieve".

So he leaves and I think to myself.why did he point it at that corner? So I get some silicone caulk and seal up that corner of the shower and wouldn't you know it, no leaks! So basically this dude knew what was up but wanted to do a tear out and rebuild of my entire shower and bend me over for $10k for what basically cost me $4 in caulk.all I can say is never trust these guys for your plumbing, because they will do whatever they can to rob you blind.
Rachel D.
Dec 01, 2015
DON'T USE BLAU PLUMBING IN MILWAUKEE! Hubs called to get them to fix the toliet. Told her on the phone we dropped a bottle in there and need it out. She said 39.00 service fee plus the cost of the service. She didn't mention that it was 531 buck MINIMUM just to PULL THE TOLIET OFF AND REMOVE ITEM REPLACE TOLIET! MINIMUM! So the guy gets here he tells me this and i say no thank you. charges me 80 dollars just for the 5 mins he is here. He charged a diagnostic fee. That we were not informed about before hand.
Angie K.
Nov 10, 2015
They dont even deserve 1 star. Labor Day weekend and we had no other choice, no one else would come help us when our hot water heater took a crap. They came, charged us an arm and a leg and left. 24 hour later.no hot water.they had to remove the hot water heater thst they put in and replace it with a new one! Now here I sit two months later and 20 degrees colder outside.again.no hot water.

I called the 24 hr service line with a message that states I should recieve a call within 5 minutes.nothing.call again 15 minutes later.still nothing 30 minures and counting.dont use this company ever!
Rachel K.
Dec 01, 2011
Blau is a bit more expensive than some other companies, but I'm happy to pay the extra for the amazing service from very experienced technicians. Problems are diagnosed quickly and I like that I know upfront how much it will cost me. I have had plenty of shoddy service in the past and it's nice to know I can trust their work. I have been using them for years and have never had the same problem twice.

I can't say that for other companies. I was using a different plumbing company for awhile from a referral and I was charged $260 for a problem they had "fixed" 3 months earlier. I went back to blau after that. I see someone was upset about them tagging all their pipes, etc. in their basement, but I love it. It helps me when I'm doing some DIY projects.
Robert O.
Apr 25, 2011
Beware of the Blau Plumbing. They are nothing short of scam artists. We had a drain clog in our basement pipes that has been fixed a few times prior all within an hour or so. In this situation the plumber who showed up could not have been older than 21 years old. He started to snake the drain and four hours later the pipes were leaking profusely and the clog was still not fixed.

The young plumber to his credit, did take the blame for the additional leaks. However, once he contacted his boss the story changed and his boss gave us an $1800 verbal estimate to fix it sight unseen. In addition, he blamed us for the problem and claimed his plumber had nothing to do with the leaks. The young plumber left without fixing the clog or the leaks he caused. We were forced to call another plumbing company to clean up Blau's mess. I would definitely stay away of Blau Plumbing!
Michael C.
Sep 15, 2010
Part # HH84AA021-----Caveat Emptor! Google this and you can buy it at multiple HVAC distributors and even on Amazon.com for under $100. I, on the other hand, was charged $520, plus $59.00 truck charge, plus $65.00 Qtr. hr in diagnostic fee. This is unreasonable and should be exploited. My total bill. $680. My 5 quotes received from Consolidated, Aarons, Rick Ogden HVAC, and others are all in the $200 range.

As in the below blog, I will exhaust every cell in my body to exploit this. I'll use blogs, Yellow Pages, Yahoo, Google, Search Engines, Craigslist, Angies List, The Locals, Fox 6, Channel 12, Channel 4, MPTV, Marquette boards, and I'll have friends, family, co-workers post bulletins on their myspace accounts & on their work message boards, face book, classmates.com, and e-mail chains.

Amazing what you can do with a computer when you get ripped off! Shame on me for not quoting this out and trusting someone again. Shame on you for price gouging. Burn me once, but never twice. Crooks Here! Read or you'll be sorry.