Boiler Repair & Replacement
in Erlanger, Florence & NKY

• Circulator pump repair or replacement: The most frequent call on older NKY hot water systems – the pump moves heated water through every zone continuously and wears over time.
• Pressure relief valve replacement: A safety-critical component; a valve that’s weeping or failing isn’t something to put off.
• Expansion tank replacement: When the tank becomes waterlogged, pressure problems cascade through the entire system.
• Zone valve repair or replacement: A failed zone valve means one area of the home simply doesn’t heat – it often gets mistaken for a bigger problem.
• Heat exchanger inspection and repair: Cracks or deterioration here are a safety concern and frequently the deciding factor in whether a system is worth keeping.
• Aquastat and thermostat calibration or replacement: Faulty controls can mimic symptoms of much larger problems – diagnosis here often saves homeowners from unnecessary replacement conversations.
• Ignition system and pilot assembly service: Common in Erlanger’s older boiler stock as systems approach the 25–30 year mark.
• Sediment flush and system bleed: Trapped air and accumulated sediment are the two most common culprits behind noisy systems and uneven heat distribution.

Boiler Replacement in Erlanger & Florence

When a boiler has reached the point where repair no longer makes financial sense, because repairs are becoming recurring, the heat exchanger is compromised, or parts for an older unit are simply no longer available, a new system is the right call. Modern high-efficiency gas boilers (AFUE 90%+) deliver meaningfully lower operating costs than aging equipment, and in most Erlanger homes with intact radiators and piping in good condition, a new boiler can be paired with the existing distribution system without a full retrofit.

The process with Arlinghaus starts with an assessment of the boiler, the distribution piping, and the radiators to confirm they can support a new unit. From there, we walk you through equipment options, handle Kenton County permitting, and complete a full commissioning check before the job is done. Free estimates on all replacement projects.

Thinking About Converting to a Different System?

Boiler replacement isn’t the only path when an older system reaches end of life. For Erlanger homeowners who want cooling capability alongside heating, or who are simply ready for a full upgrade, converting to a furnace or heat pump is worth evaluating. For homes without any existing ductwork it’s a more involved project and a larger upfront investment; for homes that already have some ductwork in place, it may be more practical than expected.

There’s no one-size-fits-all answer here. Arlinghaus will give you real cost comparisons across both options, new boiler versus full conversion, so the decision is grounded in actual numbers rather than a guess.

What Does Boiler Repair or Replacement Cost in NKY?

Boiler repair costs vary significantly depending on what’s failed. A circulator pump replacement lands at a very different price point than a heat exchanger repair or a pressure vessel issue. Arlinghaus provides upfront pricing after diagnosis on every repair call. You know exactly what you’re looking at before any work begins.

For replacement, cost depends on the efficiency tier of the new unit, the scope of any piping or system work needed, and permit fees. For most homeowners, a full boiler replacement is a significant investment and Arlinghaus offers flexible financing options for qualified homeowners so the cost doesn’t have to come all at once. Financing lets you move forward with the right system for your home now rather than deferring a replacement that’s already overdue. Free estimates on all replacement projects with no obligation, no pressure.

Emergency Boiler Repair in Erlanger & Florence: 24/7, Any Day

A boiler going out in an older Erlanger home is a different level of urgency than a furnace failure. Homes with cast iron radiators and no secondary heat source can drop to dangerous temperatures within hours during a January cold snap and without circulating hot water, the risk of frozen pipes is real. Arlinghaus answers phones around the clock, prioritizes no-heat boiler calls, and is available on weekends and holidays. Let us know when you call if the home has no backup heat source so we can dispatch accordingly.

Why Erlanger & Florence Homeowners Choose Arlinghaus for Boiler Service

Arlinghaus has been serving Northern Kentucky since 2008, and the reputation built in that time is grounded in specifics: 7,000+ reviews with a 4.8-star average, and Best of NKY recognition for 10 consecutive years. No other HVAC company in the area has matched that combination and on a service as specialized as boiler repair and replacement, that track record reflects something real. It means technicians who know hydronic systems, not just forced-air equipment, and a standard of honesty on every call that keeps Northern Kentucky homeowners coming back. 

• 7,000+ reviews with a 4.8-star average – more than any HVAC company specifically serving NKY
• Best of NKY for 10 consecutive years – no other area HVAC company has matched that streak
• Erlanger office at 40 Cave Run Dr – local technicians, fast response to the neighborhoods where boiler calls originate
• NATE-certified technicians trained on both modern and legacy hydronic heating systems
• All major boiler brands and system types serviced
• Upfront pricing on every call – clear numbers before any work begins
• Kenton County permit coordination handled start to finish
• 24/7 availability – phones answered around the clock for emergency calls

Schedule Boiler Repair or Request a Free Replacement Estimate

Whether your boiler needs immediate attention or you’re evaluating your options for a system that’s been showing its age, Arlinghaus is available 24/7 for emergency calls and offers free estimates on all replacements. Call us or book online and we’ll get you set up for the soonest available time.