Fast, Reliable Boiler Repairs — Available 24/7
Capital Heating, Cooling & Electric provides same-day boiler repair and scheduled maintenance across Milwaukee and surrounding areas. Our technicians work on every type of system — natural gas, propane, and oil — and we’re here to keep your home safe, efficient, and comfortable.
Call Capital today at (262) 220-7020 or schedule your service online.
Boiler Expertise Milwaukee Homeowners Trust
Same-Day Boiler Repairs
Capital offers boiler repair service seven days a week with same-day availability. Our service vehicles are stocked with the most common parts and tools so our technicians can resolve most issues on the first visit. That means your boiler is restored quickly and efficiently without multiple trips or unnecessary delays.
We Service All Boiler Types
From natural gas and propane to oil and high-efficiency condensing systems, Capital services them all. Whether you live in a historic Milwaukee home with an older cast-iron boiler or a newer property with advanced technology, our team knows the nuances of each system and how to keep it running reliably.
Certified Technicians
Every Capital technician is highly trained and certified, but skill is only part of the equation. Homeowners trust us because we show up on time, respect their property, and explain our findings clearly. You’ll know exactly what’s happening and feel confident the job is done right.
Upfront Pricing
With Capital, the price is never a mystery. We provide a clear estimate before work begins and explain your options if additional repairs are recommended. There are no hidden fees and no surprise charges — just straightforward, honest pricing.
From Boiler Leaks to Heat Loss — We Fix It All
When your boiler breaks down, you need heat restored quickly. Capital’s repair team is available same day, seven days a week, so you’re never left in the cold.
Common boiler problems we solve include:
- Leaks or water pooling around the unit
- No heat or not enough heat
- Strange noises like banging, gurgling, or hissing
- Sudden spikes in energy bills
- Low or uneven pressure in the system
- Pilot light or ignition problems
Our trucks are fully stocked so we can handle most repairs on the spot. If a larger issue is found, we’ll explain it clearly and provide upfront pricing before any additional work.
Types of Boilers We Repair
Boilers aren’t all the same, and knowing the differences matters when it comes to repairs. Capital Heating, Cooling & Electric services every boiler type found in Milwaukee homes:
Gas Boilers
The most common choice in our area. Gas boilers are reliable, but ignition problems, burner issues, and pilot light failures can shut them down quickly. Our technicians know how to troubleshoot gas flow, pressure controls, and safety sensors to get them back online fast.
Oil Boilers
Still found in older homes and rural properties. Oil boilers often suffer from clogged nozzles, dirty filters, and soot buildup that restricts performance. They require thorough cleaning and precise adjustments — work our team does every day.
Propane Boilers
Popular in areas without natural gas lines. These units share many of the same issues as gas boilers but require extra care with regulators and fuel supply checks. We’re experienced in identifying leaks and ensuring safe, consistent operation.
Older Cast-Iron Boilers
Many Milwaukee homes — especially on the East Side and in Bay View — still rely on decades-old cast-iron boilers. They’re durable but prone to leaks, corrosion, and inefficiency. We know how to maintain these legacy systems and advise when replacement is the smarter choice.
Electric Boilers
Compact and quiet, electric boilers are often found in homes without gas lines. Common issues include failed heating elements, thermostat malfunctions, and tripped breakers. While simple to maintain, they can be more costly to operate in Wisconsin.
High-Efficiency Condensing Boilers
Newer, advanced systems designed for maximum efficiency. Their complexity makes them more prone to issues with condensate drains, sensors, and control boards. We understand the unique service needs of condensing boilers and have the training to keep them running at peak efficiency.
Common Boiler Issues in Milwaukee Homes
Milwaukee’s climate and housing stock put unique demands on boilers. Here are the problems we see most often:
Drafty Older Homes Leaks in insulation make boilers work harder to maintain comfort. Radiators may also develop air pockets that reduce performance.
Lake Michigan Moisture can accelerate corrosion inside the system, especially in venting and pipes.
Basement Boilers Many Milwaukee homes have boilers in cool, damp basements, which speeds up wear on electrical and mechanical parts.
Heavy Winter Load Running nonstop through long stretches of freezing weather often leads to pressure fluctuations and overworked components.
Snow/Vent Issues Heavy snowfall can block exterior vents on high-efficiency boilers, causing system shutdowns.
Our technicians understand these local challenges and tune repairs and maintenance to match them.
DIY Checks Before You Call
We’re always ready to help, but sometimes the fix is simple. Before scheduling a repair, try these quick homeowner checks:
- Check the Thermostat – Make sure it’s set to “heat” and the temperature is above room level.
- Inspect the Power Switch – Many boilers have a dedicated on/off switch nearby; make sure it hasn’t been accidentally flipped.
- Look at the Pilot or Ignition – For older boilers, check if the pilot light is lit. For newer ones, see if the ignition light or reset button is showing a fault.
- Verify Water Pressure – If your boiler has a pressure gauge, confirm it’s in the recommended range (usually 12–15 psi).
- Bleed Radiators – If some rooms aren’t heating, air may be trapped in the radiators. Bleeding them can restore heat circulation.
If these checks don’t solve the problem, it’s time to call Capital. We’ll handle the bigger issues quickly and professionally.
Prevent Breakdowns with Annual Maintenance
A boiler that runs all winter in Milwaukee’s harsh climate needs professional care to stay efficient and reliable. That’s where regular maintenance comes in.
During a Capital boiler tune-up, we:
- Clean burners, heat exchangers, and other key components
- Check safety controls, gas pressure, and water levels
- Inspect for leaks, corrosion, or early signs of failure
- Test the thermostat and system performance
- Optimize efficiency for lower energy bills
- Flush and clear the system to improve circulation and prevent blockages
Annual service not only prevents surprise breakdowns but also extends the life of your boiler — protecting your investment and keeping your home comfortable.
Home Comfort Club — With Beyondification
For homeowners who want more than just emergency repairs, Capital offers the Home Comfort Club. This membership plan is about beyondification — going beyond the basics of a one-time tune-up to deliver year-round peace of mind.
Members enjoy:
- Automatic annual boiler maintenance so you never forget.
- Priority service during Milwaukee’s busiest cold snaps.
- Discounted repairs and parts, saving you money long-term.
- Extended system life and fewer breakdowns, thanks to consistent care.
With Capital’s Home Comfort Club, you don’t just get maintenance — you get a partner invested in keeping your boiler efficient, safe, and reliable every season.
Testimonials
What Our Customers Say
When Repairs Turn Into Replacement
No one looks forward to replacing a boiler — we know it’s a major investment, and it’s natural to hope that a repair will be enough. At Capital Heating, Cooling & Electric, our goal is always to keep your system running as long as it’s safe and cost-effective to do so. But sometimes, repairs add up to the point where replacement simply makes more sense.
When that time comes, we approach it with honesty and compassion. Our technicians will:
- Explain the problem in plain language — no jargon, no scare tactics.
- Lay out your repair and replacement options clearly, so you understand the pros and cons.
- Provide upfront pricing for both paths, with no pressure to choose one over the other.
- Help you consider long-term costs, energy savings, and comfort so the decision is truly in your best interest.
We also understand that replacing a boiler is a big expense. That’s why Capital offers financing options and flexible scheduling, so you can move forward without feeling overwhelmed. Our priority is your comfort, your safety, and your peace of mind — not just making a sale.
Why Choose Capital?
Capital Guarantees
Capital Heating, Cooling, Electric & Plumbing stands behind all our work. You are covered on the installation of your heating or cooling system by the following guarantees and more:
- Your 100% Unconditional Satisfaction Or Your Money-Back Guarantee
- 5-Year Comfort Guarantee
- Exclusive Lemon-Free Guarantee
- Lifetime Installation Components & Craftsmanship Guarantee
- Lifetime Ductwork Warranty
- And more.
Flexible Financing
Capital cares to make your life better today, without YOU having to worry about tomorrow. So we also offer a number of financing options to help you with your HVAC system, plumbing, or electrical repair or replacement costs.
Capital Communication
We will let you know what to expect on the day of your service, and introduce you to technician before they arrive at your doorstep. At least 24 hours prior to your installation, you’ll receive a “Meet Your Technician” email with:
- Technicians’ photo
- # years experience
- Photo of the install truck
- In Transit text
In addition to the friendly introduction, you can rest assured that every Capital technician who enters your home is thoroughly vetted, professionally trained, and nationally certified. In fact, many team members have been recruited from across the country to ensure you always receive the highest level of expertise—no matter the service.
Boiler Repair & Maintenance Local FAQs
How often should I service my boiler in Milwaukee?
Boilers should be serviced once a year. Annual maintenance is critical in Milwaukee because winters are long, harsh, and boilers work overtime. Yearly service keeps efficiency high, helps prevent mid-season breakdowns, and extends the life of your system.
What are the most common boiler problems?
Typical issues include leaks, strange noises (banging, hissing, or gurgling), low pressure, ignition or pilot light failures, and uneven heating. Oil boilers often deal with clogged filters, while high-efficiency condensing boilers can suffer from blocked condensate drains.
Can I repair my boiler myself?
You can do a few simple checks before calling for service: confirm the thermostat is set to “heat,” check the power switch, inspect the pilot light or ignition, look at the pressure gauge, and bleed radiators if they aren’t warming evenly. Anything beyond these checks should be left to professionals to avoid safety risks.
How do I know if my boiler needs repair or replacement?
If your boiler is nearing the end of its lifespan (12–15 years for high-efficiency, 15–20 years for traditional models), needs frequent repairs, or is causing higher energy bills, replacement may be the better investment. Our technicians provide honest, upfront guidance to help you decide.
How much does boiler repair cost in Milwaukee?
The cost depends on the type of boiler and the problem. Small fixes like replacing a thermostat or pressure valve are usually straightforward, while larger repairs such as heat exchanger replacement are more expensive. Capital always provides upfront pricing and explains your options before starting work.
Does Capital offer emergency boiler repair?
Yes. We provide same-day repair service seven days a week. Our team carries common parts on every truck so most issues can be fixed on the spot without waiting for a second appointment.
What happens during boiler maintenance?
A Capital boiler tune-up includes cleaning burners and heat exchangers, testing safety controls, checking gas or fuel pressure, inspecting for leaks or corrosion, bleeding air from radiators if needed, and optimizing efficiency to lower energy bills.
Will regular boiler service lower my heating bills?
Yes. A neglected boiler has to work harder to heat your home, wasting energy and money. Annual maintenance helps your boiler run more efficiently, which reduces energy use and keeps bills manageable — especially important in Milwaukee where heating costs are among the highest household expenses in winter.
How long do boiler repairs usually take?
Most repairs can be completed in under two hours, depending on the issue. Simple fixes like replacing an ignition or valve are quick, while more complex problems may take longer. Our goal is always to resolve the issue in one visit.
Do you work on older boilers?
Yes. Milwaukee’s older housing stock still relies on legacy cast-iron boilers. These systems are durable but prone to corrosion, leaks, and inefficiency. Our technicians are experienced with both maintaining older boilers and advising when replacement is the smarter option.
