- Clean and inspect the heat exchanger, burner, and flue.
- Check water pressure and inspect for leaks.
- Test gas pressure and combustion efficiency.
- Inspect and descale components to prevent lime buildup.
At Leo Kob Co., Inc., we provide professional services for combi-boilers, offering maintenance, repair, and installation expertise. These compact, energy-efficient systems provide both heating and hot water, making them a popular choice for modern homes and businesses.
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Routine maintenance is vital to keep your combi-boiler operating efficiently and reliably, ensuring uninterrupted heating and hot water.
Annual Maintenance:
If your combi-boiler isn’t performing as it should, our technicians can diagnose and resolve the issue quickly. We specialize in ensuring your heating and hot water needs are met.
Standard Repairs:
If your combi-boiler isn’t performing as it should, our technicians can diagnose and resolve the issue quickly. We specialize in ensuring your heating and hot water needs are met.
New Combi-Boiler Installation:

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At Leo Kob, we provide residential and commercial HVAC services in Central Pennsylvania, including heating, air conditioning, and ventilation system installation, repair, and maintenance. Our licensed HVAC technicians help homeowners and businesses stay comfortable year-round with energy-efficient, reliable solutions.

Leo Kob Co. offers dependable plumbing repair and installation services for homes and businesses throughout Lancaster County and Central PA. Our licensed plumbers handle everything from leak detection to water heater service with a focus on quality, safety, and lasting performance.

Leo Kob Co. offers reliable electrical services throughout Elizabethtown, Lancaster County, and Central Pennsylvania. Our licensed electricians perform EV charger installations, service panel upgrades, and home safety inspections with the same care and craftsmanship that have guided our work for more than a century.