A lot of Northeast Ohio homes still heat with a boiler. We service, repair, and replace every common type - 1960s cast iron Burnhams and Weil-McLains, modern Lochinvar and Buderus condensing systems, hydronic baseboards, in-floor radiant, and the steam systems heating century homes in downtown Warren and Youngstown.
Hot-water (hydronic) boilers circulate heated water through baseboard radiators, panel radiators, cast iron rads, or in-floor radiant tubing. The system runs under 12-30 psi, the boiler stays under 200F, and the circulator pumps, expansion tank, air separator, and zone valves are the parts that wear. Steam boilers are different animals - water boils, steam rises through one-pipe or two-pipe mains to radiators, condensate returns by gravity, and the system runs at 0.5 to 2 psi with a different set of safety controls. The two systems share almost no service parts and require different troubleshooting.
We work both. The technicians who service steam in NE Ohio have walked plenty of one-pipe systems in 1920s Youngstown brick foursquares and two-pipe systems in mid-century Warren ranches. Steam systems lose service knowledge faster than hot-water systems do - a lot of younger HVAC techs were never trained on them. We have the techs and the parts pipeline (gauge glasses, pigtails, pressuretrols, water-feeders, low-water cutoffs from McDonnell-Miller and Hydrolevel) to keep them running.
On the install side, we do both like-for-like cast iron replacements (Burnham, Weil-McLain, Slant/Fin) and cast-iron-to-condensing conversions (Lochinvar, Buderus, Burnham Alpine). The right choice depends on your existing system temperatures, the radiator type, and your planned home tenure. We walk you through both paths in the written quote with the lifecycle math on each.
Every AKHC boiler visit starts with a full system diagnostic and a written, flat-rate quote before any work begins. If you approve the repair, the diagnostic fee is rolled into the repair price.
Five steps from the call to a working system. No call centers, no upsell scripts.
A real dispatcher answers 24/7, year-round. We get symptoms on the phone - cold house, leaking near the boiler, banging pipes, pilot won't stay lit - and schedule a window that works for you. No-heat calls in January jump the queue.
Most NE Ohio boiler calls get a tech on-site within 4 hours during business hours, sooner on a sub-20F night. Boiler service is a knowledge-heavy trade and we send techs who actually work boilers - not the next available HVAC tech.
Tech walks the system, runs combustion analysis, checks safeties, and identifies the root cause. Written, flat-rate quote on the spot. No work starts until you sign off.
Repair happens the same visit if parts are on the truck (common ones are). Tech fires the boiler through a full cycle, verifies safeties operate, and checks for leaks at every joint that was touched.
Boilers reward annual service more than almost any other heating system. We offer an annual maintenance visit (combustion analysis, low-water cutoff test, expansion tank check, gauge glass on steam, system flush as needed) at a reduced rate. No pressure - it's just the easy math on a boiler.
Boiler work is a specialty, and shops that do it well are getting scarcer. Here's why we're worth the call.
A lot of NE Ohio HVAC shops won't touch a steam boiler - the trade knowledge has been thinning out for two decades. We have techs who work one-pipe and two-pipe steam systems and know the difference between a Hartford loop and a near-boiler swing joint. If your century home has steam, we're your call.
Not every NE Ohio boiler should be replaced with a condensing unit. If your home has high-temperature cast iron radiators sized for 180F water, a condensing boiler will run at 80% efficiency instead of 92%+ because it never gets the return-water temp down low enough to condense. We tell you that before you spend the upcharge.
Every boiler service includes a combustion analysis - CO ppm, O2, stack temperature - logged with the record. A boiler that fires and produces heat isn't enough. It has to burn cleanly. Standing pilots, marginal drafts, and oversized burners all hide on a boiler that "works fine" but burns dirty.
Older boilers have older parts pipelines. We know which Burnham, Weil-McLain, and Slant/Fin parts cross over between models, which obsolete circulators have current replacements, and which gauge glasses and pigtails to stock. Most repairs finish the same visit instead of waiting on a special-order part for a week.
Written quote before any wrench turns. The price you sign off on is the price you pay - we don't bill hourly, and we don't bolt on "oh, we found another issue" mid-job invoice creep. On a system with parts that can need follow-up work, we tell you all the likely scenarios up front.
Boiler systems and plumbing systems share the same building. If a leaking boiler valve or a failed PRV has dumped water on the basement floor, AK Water Works (our plumbing sister company) can be on-site the same day to handle any cleanup or related plumbing work. One phone number for HVAC and plumbing across NE Ohio.
Two different tools for two different jobs. Cast iron boilers (Burnham, Weil-McLain, Slant/Fin) are simpler, last 25-30+ years, and are excellent matches for older NE Ohio homes with high water-temperature radiators or single-zone systems. High-efficiency condensing boilers (Lochinvar Knight, Buderus, Burnham Alpine, Navien) hit 92-95% AFUE, modulate burner output, and pair beautifully with low-temperature systems like in-floor radiant or modern panel radiators - but they typically last 12-15 years before the stainless heat exchanger fatigues. The right answer depends on your existing system, your home, and how long you plan to be in it. We walk you through both paths in the written quote.
Cast iron boilers commonly last 25-30 years in NE Ohio, sometimes longer with consistent annual service. We see plenty of 1970s Burnhams and Weil-McLains still running in Warren, Youngstown, Boardman, and Niles. High-efficiency condensing boilers have a shorter lifespan - 12-15 years - because the stainless heat exchanger fatigues from acidic condensate cycling. The trade is the higher AFUE (92-95% vs 82-85% on standard cast iron) and the modulating burner. We don't push you toward replacement before the math says it's time.
Usually not - the boiler is fine, but air is trapped at the top of that radiator. On hot-water systems, every fall you should bleed each radiator with the small valve at the top until water (not air) comes out. If bleeding doesn't fix it, the cause is often a stuck zone valve, a circulator pump that doesn't have enough head pressure to push to that loop, or a partially closed balancing valve. On steam systems, a cold radiator is usually a clogged air vent on that radiator - air can't escape, so steam can't enter. We service all three.
On hot-water boilers, banging usually means air in the system, an undersized expansion tank, or excessive water-temperature swings - all fixable with a system purge, an expansion tank check, and an aquastat adjustment. On steam boilers, banging is almost always water hammer caused by condensate trapped in the supply piping (improperly pitched mains, missing or clogged steam traps, or near-boiler piping that doesn't separate steam from water cleanly). Steam water hammer is fixable but requires walking the piping route - we do that as part of the diagnostic.
The low-water cutoff (McDonnell-Miller, Hydrolevel, or similar) is a safety device that shuts the boiler off if the water level drops below a safe operating level. On a steam boiler it's mandatory and critical - fire a dry steam boiler and the cast iron sections crack. On a hot-water boiler it's required by most modern codes for the same reason. We test the low-water cutoff on every annual service - flush it on probe-type controls, blow it down on float-type. A stuck low-water cutoff is the kind of safety issue we won't paper over to keep an invoice on the books.
Yes - though not every system needs a full flush every year. We test the system water chemistry (pH and mineral content), check the expansion tank pre-charge, exercise the circulator, and inspect the air separator. A full chemical flush is recommended every 5-7 years on most cast iron systems, or sooner if water testing shows scale or sediment problems. Condensing boilers are more sensitive and may need a flush every 2-3 years depending on installation. We tell you what your system needs - not what's on a maintenance plan checklist.
Burnham (U.S. Boiler Company), Weil-McLain, Slant/Fin, Peerless, Lochinvar, Buderus (Bosch), Navien, New Yorker, Crown, Williamson-Thermoflo, plus older legacy brands. Both hot-water and steam. Standard cast iron and high-efficiency condensing. Atmospheric, induced-draft, and direct-vent. The boiler-side market is more fragmented than the AC market and parts pipelines for older boilers can take a couple of days - we tell you up front whether a repair part is in stock or has to ship.
In Ohio, residential boiler and hydronics work is performed under the HVAC contractor license through the Ohio Construction Industry Licensing Board (OCILB). Commercial boilers above certain BTU and pressure thresholds require additional registration with the Ohio Department of Commerce's Division of Industrial Compliance. Either way, we work with the gas utility and inspector under whatever permit your jurisdiction requires.
Same-day dispatch from our Warren shop across five counties.
“Furnace went out on a Sunday night. AK had a tech in the driveway in 90 minutes, parts on the truck, and we were warm before kids' bedtime. Worth every dollar of the maintenance plan.”
“Our restaurant walk-in went down at 6am. AK answered the after-hours line on the second ring and had us running before lunch service. We've switched all of our refrigeration work to them.”
“Had Generac install, AC tune-up, and a humidifier swap done across two visits. One bill, one company, real techs. This is what local service is supposed to feel like.”
Before the first real cold snap, walk your hot-water radiators with a small key (or flat-head screwdriver) and a cup. Open the bleed valve at the top of each one until water - not air - comes out, then close it. Five minutes per radiator. Trapped air at the top of a radiator is the single most common reason an upstairs bedroom stays cold while the rest of the house is fine. If a radiator stays cold after bleeding, that's a zone valve, balancing valve, or circulator pressure issue - call us.
Three Alex Mantalis companies, one Warren HQ. Each with its own license and insurance — coordinated when you need more than one trade.
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