Trusted Plumbing, Heating & Cooling, in Danville, IL
When it comes to reliable home comfort, Lanz Plumbing, Heating & Cooling is the name Danville residents trust. For over 20 years, our licensed technicians have provided professional plumbing, HVAC, drain, and underground solutions backed by quality workmanship and friendly service. From emergency repairs to new system installations, we’re here to keep your home safe, comfortable, and efficient year-round.
Call 217-394-1380 or contact us online to book your next service in Danville, IL.
Plumbing Repair & Installation in Danville, IL
Your home’s plumbing system deserves expert care. Lanz offers comprehensive plumbing services in Danville designed to prevent leaks, improve efficiency, and extend the life of your fixtures.
Our plumbing services include:
- Fixture Installation & Replacement – Stylish, water-efficient upgrades for faucets, sinks, and toilets.
- Water Line & Repiping Services – Replace aging or corroded lines to restore strong, clean water flow.
- Sump Pump Installation & Backups – Protect basements from flooding with reliable Liberty sump pumps and alarms.
Whether you’re remodeling or dealing with an urgent leak, call Lanz for fast, dependable plumbing help in Danville.
Stay Warm All Winter With Heating Services in Danville, IL
Illinois winters can be tough, but Lanz makes it easy to stay cozy. We provide full-service heating installation, repair, and maintenance to keep your furnace or boiler performing at its best.
Our heating experts specialize in:
- Furnace Repairs & Replacements – Get fast, affordable heating solutions for every home and budget.
- Boiler Service & Upgrades – Improve efficiency and reduce heating costs with expert boiler care.
- Heat Pump Installation – Year-round comfort with high-efficiency electric systems.
- Seasonal Maintenance Plans – Prevent breakdowns and keep your system running safely all winter.
For dependable heating service in Danville, IL, call 217-394-1380 today.
Cooling & Air Conditioning Services in Danville, IL
When summer heat strikes, trust Lanz for cooling repairs and AC installations that keep your home comfortable and energy-efficient.
Our certified HVAC team provides:
- Air Conditioning Repair & Maintenance – Quick response to restore cool air fast.
- AC Installation & Replacement – High-efficiency systems professionally installed for your home’s needs.
- Ductless Mini-Split Systems – Zoned comfort ideal for older homes or room additions.
- Smart Thermostat Setup – Maximize efficiency and control from anywhere.
We’re proud to be Danville’s go-to choice for reliable air conditioning service and repair.
Drain & Sewer Solutions in Danville, IL
Clogged drains and sewer backups can cause serious headaches. Lanz delivers fast, professional drain cleaning and sewer repair in Danville using advanced equipment for lasting results.
Our sewer services include:
- Sewer Camera Inspections – Identify cracks, roots, or buildup without excavation.
- Sewer Line Repair & Replacement – Trenchless methods minimize disruption to your yard.
Restore your drains and protect your home with Lanz’s expert sewer and drain services.
Underground Solutions in Danville, IL — Safe, Efficient, and Long-Lasting
From pipe replacements to water service upgrades, Lanz offers professional underground plumbing solutions built to last. Our team uses the latest technology to minimize digging, protect your property, and ensure reliable results.
We specialize in:
- Water Service Replacement & Repair – Fix leaks or corrosion in buried lines quickly and safely.
- Sewer Line Installation & Trenching – Durable, properly sloped systems that meet local Danville codes.
- Excavation & Site Prep Services – Safe and efficient digging for utilities, foundations, and drain fields.
- Directional Boring & Trenchless Pipe Repair – Non-invasive methods that preserve landscaping and pavement.
If your Danville home or business needs underground plumbing work, Lanz’s experienced technicians are equipped for any challenge.
Water Heater Installation & Service in Danville, IL
Don’t settle for inconsistent hot water. Lanz installs, repairs, and maintains both tank and tankless water heaters in Danville.
Our plumbing experts handle:
- Water Heater Replacement & Repair – Reliable hot water restoration with energy-efficient options.
- Tankless Water Heater Installation – Endless hot water and long-term savings.
- Water Filtration & Softener Systems – Improve water quality and protect your appliances from buildup.
Ask about our free estimates and maintenance plans to extend your system’s lifespan.
Indoor Air Quality Services in Danville, IL
Breathe easier with clean, healthy air. Lanz provides custom indoor air quality solutions to reduce allergens, control humidity, and eliminate odors in your Danville home.
We offer:
- Whole-Home Air Purifiers & Filters – Capture dust, pollen, and airborne bacteria.
- Dehumidifiers & Humidifiers – Balance moisture levels for year-round comfort.
- Duct Cleaning – Improve airflow and reduce energy waste.
Protect your family’s comfort and health with Lanz’s IAQ experts.
Commercial HVAC & Plumbing Services in Danville, IL
Local businesses trust Lanz for dependable commercial HVAC and plumbing support. Our skilled technicians deliver responsive service and tailored maintenance programs to keep your operations running smoothly.
Commercial services we offer:
- Preventive maintenance for large facilities
- Boiler and rooftop unit repairs
- Commercial drain cleaning and sewer repair
- Design-build installation for new construction projects
We proudly support Danville businesses with solutions that keep comfort systems efficient and reliable year-round.
Experience the Lanz Difference in Danville, IL
From homes on Vermilion Street to businesses downtown, Lanz Plumbing, Heating & Cooling is proud to serve the Danville community with honest service and dependable results. Whether it’s plumbing, HVAC, or underground solutions, our mission is simple — your comfort, your safety, and your satisfaction.
Call 217-394-1380 or contact us online to schedule service and experience The Lanz Difference in Danville, IL today.
Recent Jobs and Reviews in Danville, IL
Danville, IL at a glance
Lanz Plumbing, Heating & Cooling has completed 25 jobs in Danville, IL between September 2026 and October 2026.
The most recent job was on October 28, 2026.
Lanz Plumbing, Heating & Cooling has completed 207 jobs in Danville, IL in the last 12 months. The first job there was in June 2023.
Job Locations and Reviews
Cleaned furnace burners and flame sensor, replaced 20x25x5 filter and humidifier pad, and checked system airflow. Tested sump pump and plumbing stops. Identified a leak at the exhaust line glue joint and inspected a dripping bathtub faucet.
Diagnosed a failed blower motor that caused the AC evaporator coil to freeze. Allowed the coil to thaw and ordered a replacement blower motor to restore proper system airflow and complete the furnace repair.
Cleared backed-up bathroom floor drain and shower with 50 feet of cable, breaking through a blockage at 30 feet to drain standing water. Removed a failed cast iron backflow valve to ensure proper flow and prevent future backups.
Replaced furnace filter and cleared pressure port hose to resolve a water leak. Tested capacitor, flame sensor, and wiring. Washed down mini-split unit, verified water temperatures, and inspected sink shut-off valves and plumbing fixtures.
Resolved a furnace not heating issue by replacing a failed gas valve under parts warranty, restoring proper gas flow and system heating performance.
Diagnosed mobile home furnace with no heat and identified a failed draft inducer motor. Ordered the replacement part and scheduled a return visit to complete the furnace repair upon delivery.
Installed a new 40-gallon AO Smith tank water heater with new water and gas fittings. Bled air, verified leak-free connections, and confirmed proper gas safety with a detector. Checked basement for sump pump, identifying only a nearby floor drain.
Cleared a main sewer line blockage caused by sludge buildup. Accessed the pipe via backyard tap tile, cabled 80 feet using a 3/4" cable, and inspected with a camera. Ran water to confirm full flow and complete drain cleaning.
Cleaned furnace burners and tested the igniter, flame sensor, static pressures, and wiring. Completed a plumbing inspection covering the water heater, drains, garbage disposal, and toilet dye leak tests. All components operating properly.
Restored the main gas supply to the unit and verified system ignition and burner operation for reliable furnace heating.
Replaced a failed control board on the attic furnace (unit #2) to resolve system failure. Verified proper operation and airflow to restore reliable heating and cooling performance.
Completed bi-annual HVAC maintenance. Conducted furnace safety inspections and performance testing to ensure optimal heating. System is functioning correctly with no issues identified. Noted that replacement air filters are needed next visit.
Resolved furnace buzzing issue by clearing debris from a stuck inducer motor. Dislodged the blockage to allow the inducer to spin freely, restoring proper heating system operation and testing multiple times for reliability.
Replaced a damaged lever drain stopper gasket to resolve sink drainage issues. Sourced and installed a new T&S faucet sprayer head to fix the cracked unit, providing a reliable faucet repair.
Cleared a clogged toilet by augering the drain to remove a heavy waste blockage past the flange. Tested the flush with paper towels to ensure proper drainage and restore normal operation.
Cleaned heating components for HVAC maintenance. Flushed the water heater, ran a sewer line camera inspection, and tested sinks, toilets, and shut-off valves to ensure optimal plumbing performance with no repairs currently needed.
Resolved a main sewer backup causing bubbling toilets by clearing a heavy root obstruction blocking a sanitary manhole outlet. Restored proper drainage and performed a sewer camera inspection to verify the line is fully clear.
Cleaned systems during commercial HVAC maintenance. Re-secured a loose condensate drain line on Unit 1 to resolve a water leak. Identified Unit 4 warehouse heater not heating; recommended a follow-up diagnostic for the thermostat issue.
Completed HVAC maintenance and plumbing checks. Replaced 20x25x5 filter, verified pressures/voltages, and dye-tested toilets. Documented client requests for basement drain cleaning and recent water sample results.
Conducted HVAC maintenance and plumbing inspections. Replaced AC filters, cleared drain lines, and identified weak capacitors, pitted contactors, and pipe leaks. Recommended water heater repair, toilet replacements, and indoor air quality upgrades.
Inspected leaking, loose urinal. Attempted tightening the wall-mounting bolts to stop the water leak, avoiding porcelain damage. Scheduled a follow-up plumbing repair to properly secure the fixture and resolve the leak.
Replaced the floor drain check valve and performed a water heater repair by fixing the hot water piping, ensuring proper drainage and plumbing system function.
Thawed frozen AC and verified blower motor function. Diagnosed poor airflow caused by a kinked, short return flex duct. Added 1 lb of refrigerant for temporary cooling and quoted a ductwork repair to resolve the airflow restriction.
Completed the annual RPZ backflow prevention test to ensure commercial plumbing safety. The device passed all requirements. Left physical results in the onsite maintenance log and submitted compliance reports to the local municipality.
Installed Lennox Airscrubber, replaced geo unit contactors/capacitor, and repaired outdoor loop line. At the resort, installed 3 new contactors, capacitors, and hard start kits. Attic furnace diagnosed with a bad control board.
