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Heating Service Repairs

Furnace Repair In Milwaukee

Stay Warm All Season Long with Furnace Repairs & Tune-Ups from Blau Sudden Service

Nothing reminds us more of the winter cold than a furnace that either isn’t working well, or stops working all together.

As things get worse, you start using double and triple blankets at bedtime, extra layers of clothing during the day…you right even buy one or more electric space heaters or too to augment what little heat your furnace is providing.

Our advice is:  “Don’t wait that long!”  Because if your furnace isn’t doing its job, it needs fast and expert attention…the kind you can depend on from Blau Sudden Service. 


Contact us online or give us a call at 1-800-BLAU-NOW to get started on your next furnace repair service today!


Warning Signs Your Furnace Needs to Be Serviced

Your furnace plays a crucial role in keeping your home warm and comfortable during cold weather. Regular maintenance is essential to ensure it operates efficiently and safely. Here are some warning signs that indicate your furnace may need servicing:

  • Strange Noises: Rattling, banging, or squealing sounds could indicate loose parts or motor issues.
  • Higher Energy Bills: Sudden spikes without increased usage might signal efficiency problems.
  • Uneven Heating: Certain rooms being colder could point to duct or thermostat issues.
  • Frequent Cycling: On-off cycling could mean clogged filters or airflow problems.
  • Yellow Pilot Light: A yellow flame could indicate carbon monoxide presence; it's dangerous.
  • Foul Odors: Burning or musty smells could indicate dirty filters or mold growth.
  • Poor Air Quality: More dust or particles indoors could stem from a faulty furnace.
  • Soot or Rust: Visible soot or rust around the furnace may indicate combustion problems.

If you notice any of these signs, it's best to have a professional inspect your furnace promptly to ensure safety and efficiency. Regular maintenance can prevent costly repairs down the line.

Here’s just part of what we have to offer:

  • Annual tune-ups and inspections – Our multi-point tune-up and inspection process offers several important benefits.  It will help your system run better, last longer, and consume less energy.  Our tune-ups also include safety inspections as we look for any signs of gas or carbon monoxide leaks.  What’s more, annual inspections allow us to spot small problems before they get worse and then become costly repairs.  It’s the best home comfort system “insurance” going.
  • Expert repairs – At Blau, we service all makes and models of home heating systems.  We can provide same-day service when available, and always prompt, professional repair service.
  • Our trucks are stocked with hundreds of parts, meaning we can tackle and complete most system repairs with just a single visit to your home.

More than anything, we offer the very talented and experienced team of Blau heating specialists.  If there’s a problem, we’ll find it.  If it needs to bo fixed, we’ll handle it.  If another solution is called for, we’ll identity and explain it…answering all your questions along the way.

They say there’s no substitute for experience?  In this case, we think “they’re” right.  Blau Sudden Service.  Keeping the heat on in great Wisconsin homes like yours.

Milwaukee’s Trusted Furnace Experts

When the temperatures drop, you deserve a furnace you can rely on. Blau Sudden Service offers expert repairs, professional tune-ups, and unmatched customer care. Let us keep your home comfortable all winter long.


Call Blau Sudden Service at (414) 626-1991 today for reliable furnace repair and tune-ups. Your comfort is our top priority!


Commonly Asked Questions

What is the most common problem with furnaces?

One of the most common issues is a clogged or dirty air filter, which can reduce airflow and strain your system. In Milwaukee’s cold winters, this can lead to uneven heating. Regularly changing your filter can prevent this problem.

How do you fix a furnace?

Furnace repairs depend on the issue. Simple fixes like changing a filter or resetting the thermostat can be done by homeowners, but for complex issues like ignition failures or blower motor problems, it’s best to call a local expert like Blau Sudden Service.

What does furnace repair include?

Furnace repair typically involves diagnosing the problem, replacing faulty parts, cleaning components, and performing safety checks. At Blau, we also inspect for gas or carbon monoxide leaks during every service.

How often should I schedule furnace maintenance in Milwaukee?

With Milwaukee’s freezing winters, it’s recommended to have your furnace inspected and serviced annually before the heating season begins. This ensures reliable performance when you need it most.

Can I reduce my energy bills with furnace maintenance?

Yes! Regular tune-ups improve your furnace’s efficiency, which lowers energy consumption. Milwaukee homeowners can save significantly during long winter months by keeping their furnaces in peak condition.

What is the best type of furnace for homes in Milwaukee?

A high-efficiency gas furnace is ideal for Milwaukee’s climate. These systems are designed to handle extreme cold while keeping your energy costs low. Contact us for recommendations tailored to your home’s size and needs.



Hear it From Our Happy Customers

    Theo is fantastic - professional and experienced.

    Theo is fantastic - professional and experienced. He takes the time to discuss with you what he is doing and what you can do to better maintain your home. Great customer service!

    Jennifer B.
    Our new dishwasher was not draining
    “He is very professional and personable. Extremely happy with the service.”
    Dorothy S.
    Theo was our hero
    “Theo had to remove some drywall to fix our issue, but left it so that we would be able to easily patch it. He even explained how to do it!”
    Brandon F.
    Blau did over and beyond.
    “hey were professional from the start, came on time, talked me through the service, and finished the task quickly.”
    Tytrice Q.
    Work area was as clean when he left as it was when he arrived.
    “I know all service people were going to be busy today, but Steve was able to get out to my house within a couple hours of calling.”
    Ben N.
    We are satisfied customers who have worked with Blau on multiple projects
    “Most recently, they installed a whole home generator and did an exceptional job for us. And they are always very responsive when we call and show up promptly for appointments!”
    Sean D.
    Bath tub would not stop dripping.
    “I put this off for years thinking it would involve tile work and who knows what else. What a relief.”
    Butch J.
    Also, good price. Can recommend!
    “Had a furnace inspection scheduled with Blau. Their tech Dave is easy to work with and did a good job of explaining the situation and their inspection report. Also, good price. Can recommend!”
    Ryan R.
    Excellent service from scheduling to completion.
    “Theo completed the installation and left before 1:30 p.m. Knowledgeable and very professional indeed.”
    Don C.