Trusted Heating, Cooling, Drain, and Underground Plumbing Experts in Mahomet, IL
Homeowners in Mahomet, IL, turn to Lanz when they need reliable heating, cooling, plumbing, or drain service from a team they can trust. From emergency furnace repairs to AC replacements, leak detection, drain cleaning, and underground plumbing solutions, our technicians deliver quality workmanship backed by decades of experience.
For fast, friendly service, call 217-394-1380 or reach out through our contact page.
Common HVAC & Plumbing Questions From Mahomet Homeowners
We recommend scheduling AC maintenance in spring and furnace maintenance in fall to prevent breakdowns during heavy seasonal use and extend system life.
This is usually caused by airflow restrictions, dirty burners, thermostat issues, or a failing blower motor. Our technicians can diagnose the problem quickly and restore heat.
Warm air, short cycling, ice on the system, or loud operation typically point to airflow or mechanical issues—not just low refrigerant. We pinpoint the exact cause.
Tree roots, aging sewer lines, hard water buildup, and heavy soil movement are common in Mahomet. A camera inspection helps us determine the real cause.
Yes — we provide fast response for urgent heating, cooling, sewer, and plumbing issues to keep your home safe and comfortable.
Heating Services in Mahomet, IL
Furnace Repair, Installation & Annual Maintenance
Winters in Mahomet are too cold to deal with unreliable heat. Our certified HVAC technicians provide:
- Furnace repair for no-heat situations, short cycling, strange noises, and airflow problems
- High-efficiency furnace installation & replacement
- Annual furnace maintenance to improve performance and lower energy costs
- Heat pump repair & installation for energy-efficient year-round comfort
We service all makes and models and help homeowners choose the best heating solutions for long-term reliability.
Air Conditioning Services in Mahomet, IL
AC Repair, Replacement & Indoor Comfort Solutions
When summer humidity hits, you need a cooling system you can rely on. Lanz provides comprehensive AC services, including:
- AC repair for warm-air issues, leaks, frozen coils, and system failures
- Air conditioning installation & replacement with high-efficiency systems
- Seasonal AC maintenance to reduce breakdowns and improve airflow
- Ductless mini-split repair and installation for zoning or additions
We’re trained to diagnose cooling issues quickly and keep your home comfortable all season long.
Plumbing Services in Mahomet, IL
Fast, Reliable Solutions for Leaks, Fixtures & Water Quality
Our licensed plumbers provide full-service residential plumbing support, including:
- Leak detection and pipe repair
- Toilet, sink, and faucet repair or installation
- Water heater repair, replacement & tankless upgrades
- Water softener installation & filtration solutions
- Garbage disposal repair
Whether it’s a dripping faucet or a major plumbing issue, we take care of it quickly and correctly.
Drain Cleaning & Sewer Services
Camera Inspections, Hydro Jetting & Sewer Line Repair
Mahomet homes frequently experience clogged drains, slow sinks, or sewer backups—especially in older neighborhoods. Our drain and sewer services include:
- Professional drain cleaning for kitchens, bathrooms, and main lines
- Hydro jetting to eliminate grease, scale, and heavy buildup
- Sewer camera inspections to identify breaks, root intrusion, or collapsed pipes
- Sewer line repair & replacement for long-term solutions
We clear blockages safely and identify underlying issues before they cause major damage.
Underground Plumbing & Water Line Services
Expert Repairs With Accurate Diagnostics
If you’re experiencing low water pressure, unexplained wet spots, or frequent sewer backups, your underground plumbing may be compromised. We offer:
- Water line leak detection & repair
- Water line replacement
- Underground sewer repairs
- Excavation and spot repairs
Our specialized equipment allows us to complete underground work efficiently and with minimal disruption.
Why Mahomet Homeowners Choose Lanz
- Decades of local HVAC & plumbing experience
- Proud member of the Mahomet Chamber of Commerce, supporting and serving our local community
- Family-owned company built on honesty, professionalism, and community commitment
- Certified heating & cooling specialists trained in today’s most efficient systems
- Advanced diagnostic technology for accurate plumbing and sewer solutions
- Fast response times for urgent heating, cooling, or plumbing issues
- Clear communication and transparent pricing with repair options explained upfront
Schedule HVAC or Plumbing Service in Mahomet, IL
From reliable heating and cooling to expert plumbing and drain cleaning, Lanz is here to help keep your home safe and comfortable throughout the year.
Call 217-394-1380 or contact us online through our contact page to schedule service.
Recent Jobs and Reviews in Mahomet, IL
Mahomet, IL at a glance
Lanz Plumbing, Heating & Cooling has completed 25 jobs in Mahomet, IL in September 2026.
The most recent job was on September 19, 2026.
Job Locations and Reviews
Performed a pipe replacement on a leaking cove line just before the water heater, using durable 3/4” PEX to resolve the water leak.
Investigated suspected ejector pump leak. Confirmed pump operates properly. Used water leak detection to trace puddle to furnace coil drain pan overflow. Dried area and advised monitoring after HVAC tech cleared pan obstruction.
Inspected furnace and confirmed AC drain lines are running normally. Detected the water leak source is actually the ejector pit, not the HVAC system. Scheduled a plumbing repair specialist to inspect and resolve the ejector pit issue.
Completed HVAC maintenance: cleaned burners and flame sensor, and tested system pressures. Noted low flame sensor readings; scheduled a return visit to replace the flame sensor and install a new air scrubber cell.
Replaced a faulty burner assembly under warranty to resolve pilot light issues and low voltage to the gas control valve. This water heater repair restored a strong, reliable pilot flame for consistent heating operation.
Replaced the furnace roofjack and flue pipe, then performed complete HVAC maintenance on the furnace and AC systems to ensure safe venting, optimal airflow, and reliable heating and cooling.
Diagnosed faulty outdoor ambient temperature sensor reading out of spec on communicating AC system. Set system to run temporarily on internet-provided temperature. Ordered a replacement Trane sensor to complete the air conditioner repair.
Cleared clogged ejector pump by removing flushed wet wipes jamming the impeller. Removed heavy grease buildup around the float, then reinstalled and tested the pump to restore proper basin drainage and system operation.
Installed AC hard start kit, performed HVAC maintenance, and detected a crawlspace PVC water leak. Recommended mini-split blower wheel cleaning, a 5-inch filter box upgrade, and quoted a whole-home humidifier.
Completed seasonal HVAC maintenance: replaced the 16x25x5 air filter, inspected electrical connections, measured temperature splits, evaluated airflow, and verified refrigerant pressures to ensure reliable, energy-efficient cooling.
Tested and serviced system to address AC not cooling efficiently. Verified that refrigerant levels and electrical components meet manufacturer specifications, and confirmed a proper temperature split to ensure optimal cooling performance.
Troubleshot particle filter reinstallation issues, inspected the battery backup, and gathered details to quote a UV light addition for the well line and a sump pump cover installation, recommending a reliable battery backup sump pump system.
Replaced a failed toilet fill valve to eliminate pipe vibrations and noise, ensuring leak-free operation. Identified the Moen ExactTemp S3371 thermostatic shower cartridge (part #130156) for a future plumbing repair.
Resolved a bathroom plumbing leak under the cabinet by replacing the incomplete pop-up drain assembly. Tested the sink drainage thoroughly to ensure leak-free operation.
Resolved AC not cooling efficiently by addressing high superheat. Added 1.5 lbs of R-410A refrigerant to bring system to spec, improving temperature drop from 13° to 20°. Quoted UV dye leak detection to monitor for potential leaks.
Replaced one outdoor wall hydrant. Resolved leaking pipes at the main water shut-off by tightening the packing nut. Provided a plumbing repair quote to reroute the second inaccessible hydrant and replace the main shut-off valve.
Cleared minor grease buildup in the kitchen plumbing beneath the sink. Reassembled components, then tested sink and dishwasher drainage through a full cycle to confirm both are flowing freely and draining properly.
Evaluated the existing setup and provided a quote for a backup sump pump installation to prevent basement flooding. Scheduled the future water backup system installation to ensure reliable, long-term water intrusion protection.
Provided quotes for backup sump pump options, with the homeowner selecting a water-powered backup system. Also discussed water softener installation options. Offered a 30-day service fee credit toward the upcoming sump pump repair.
Resolved a leaking shower faucet by removing a stuck set screw and replacing the worn shower cartridge. Installed a new cartridge and set screw, then tested to ensure leak-free operation, saving the homeowner from needing a new trim kit.
Replaced filter, cleaned condenser coil, and diagnosed AC not cooling adequately due to low R-410A refrigerant. Performed plumbing safety inspection, advised on RPZ valve certification, and provided a backup sump pump installation quote.
Removed two old tanks and installed a new 59-gallon natural draft water heater. Updated the flue piping, ran new copper lines, and connected the gas and recirculating lines. Tested for leaks and confirmed proper gas valve operation.
Resolved a no hot water issue where stored closet items had accidentally toggled the unit's power switch off. Restored power to the system and verified proper heating to complete the water heater repair.
Diagnosed furnace whistling caused by a cracked, obsolete inducer plate drain port; recommended a temporary silicone/PVC plug seal. Also identified a faulty contactor and grounded AC compressor during HVAC maintenance.
Investigated basement water leak. Tested drain line and reconnected UV air scrubber. Added R-410A refrigerant to correct a low charge, preventing evaporator coil icing and restoring proper function to the heating and cooling system.