Your home is your sanctuary, and at Thielmann Heating, Cooling & Plumbing, we’re here to help keep it that way. Since 1929, we’ve been the trusted name in the Grand Rapids area for heating, cooling, and plumbing services that go beyond quick fixes—we focus on long-term comfort, reliability, and efficiency. Our team takes a hands-on approach, ensuring that every repair, installation, and maintenance job is done with precision and care. We know what it takes to keep a home running smoothly, and we’re committed to delivering Slinger home services that give you confidence in your home’s essential systems, no matter the season. When you need the best, call the Thielmann team at (262) 315-3067 or contact us online for more information.
Dependable Slinger Heating Services
Having a dependable heating system means more than just staying warm—it’s about keeping your home safe and comfortable through the toughest months of the year. Whether your current system is outdated or struggling, we’re here to help. The team of Slinger HVAC technicians at Thielmann takes the time to understand your space, energy needs, and comfort preferences to recommend the best heating solution for your home, so you can enjoy consistent, reliable warmth all season long. Our heating services in Slinger include:
Boiler Maintenance & Repair
Boilers offer steady, even heating, but they need regular care to keep running efficiently. Our Slinger HVAC technicians provide comprehensive maintenance, checking for leaks, flushing the system, and ensuring proper pressure so your boiler continues to deliver dependable warmth. If it’s time for a replacement, we’ll guide you through the best options available.
Furnace Installation & Replacement
Is your old furnace struggling to keep up? A new, energy-efficient system can make a world of difference in both warmth and energy costs. We help homeowners choose the right furnace for their home, ensuring it’s the perfect size and properly installed for maximum efficiency. No more cold spots, no more sky-high heating bills—just reliable warmth when you need it most.
Preventative Heating Maintenance in Slinger
Regular tune-ups help keep your system running smoothly and efficiently, reducing the risk of breakdowns when you need heat the most. Our heating maintenance services ensure your heating system in Slinger stays in peak condition, saving you money on repairs and energy bills in the long run.
Fast, Reliable Heating Repairs
A broken heating system in the middle of winter is more than an inconvenience—it’s an emergency. We respond quickly to diagnose the issue and get your heat back on as soon as possible. From minor fixes to major repairs, we have the expertise to restore warmth to your home without unnecessary delays.
Slinger Cooling Services That Beat the Heat
If your Slinger air conditioning system is working overtime and still not keeping up, it might be time for an upgrade or a professional maintenance call. Our team of local HVAC technicians focuses on more than just quick fixes—we assess airflow, insulation, and system efficiency to make sure your cooling setup is working at its best. Our cooling services in Slinger include:
- AC Installation & Replacement: If your current system isn’t keeping up, we’ll help you choose and install an energy-efficient AC unit that delivers powerful cooling without breaking the bank.
- Ductless Mini-Split Systems: Perfect for homes without central air, mini-splits offer precise temperature control while saving energy.
- AC Repairs: Strange noises? Weak airflow? Warm air instead of cold? We quickly diagnose and fix any issue, so your system runs like new again.
- AC Maintenance Plans: Prevent breakdowns and extend the life of your AC with seasonal tune-ups that improve performance and reduce energy costs.
Comprehensive Plumbing Services in Slinger
A plumbing issue can throw your whole day off track, whether it’s an annoying drip, a water heater that suddenly quits, or a pipe that bursts without warning. Instead of stressing over leaks and repairs, let us handle it. With Slinger plumbing services from Thielmann, you get a team that will tackle every job with precision, whether it’s a simple fix or a major installation, so you can get back to your routine without the headache.
- Leak Detection & Pipe Repairs: We locate and repair leaks before they lead to major water damage, ensuring your pipes remain durable and efficient.
- Garbage Disposal Installation & Repair: Whether installing a new unit or repairing a jammed disposal, we help keep your kitchen running smoothly.
- Toilet Repairs & Replacements: From fixing persistent leaks to installing modern, water-efficient toilets, we provide expert solutions for your bathroom.
- Plumbing System Inspections: Regular inspections can catch small issues before they become major problems, helping you avoid costly repairs and water damage.
- Water Heater Installation & Service: We install, repair, and maintain both traditional and tankless water heaters, ensuring you always have hot water when you need it.
- Fixture Installations & Upgrades: Upgrade your kitchen and bathroom with high-efficiency sinks, faucets, and toilets that enhance both function and style.
- Sump Pump Installation & Maintenance: Keep your basement dry with professional sump pump installation and maintenance to prevent flooding and water damage.
- Water Softener Systems: Improve your water quality by reducing hard water buildup, protecting appliances, and making daily cleaning easier.
Why Homeowners Trust Thielmann Heating, Cooling & Plumbing
For nearly a century, we’ve built a reputation for excellence, and we’re proud to be the go-to home service provider in Slinger. Here’s why homeowners continue to choose us:
- Generations of Expertise: With over 90 years in business, we’ve seen it all and know what works best for homes in the area.
- Top-Quality Products & Workmanship: We only use the best materials and equipment, ensuring every repair and installation is built to last.
- Personalized Service: Every home is unique, and we take the time to find solutions that fit your specific needs and budget.
- Honest, Upfront Pricing: No surprises, no gimmicks—just straightforward pricing and clear explanations of the work we do.
- Fast & Friendly Service: We respect your time and work efficiently to restore comfort to your home as quickly as possible.
Schedule Your Service in Slinger Today
At Thielmann Heating, Cooling & Plumbing, we know that a comfortable home isn’t just about functioning comfort systems—it’s about peace of mind. Whether your heating needs a tune-up, your AC could use an upgrade, or your plumbing is acting up, we’re here to provide expert service you can trust. Reach out today by calling (262) 315-3067 to schedule an appointment and let us handle the hard work while you enjoy the comfort of a well-maintained home.
Recent Jobs and Reviews in Slinger, WI
Slinger, WI at a glance
Thielmann Heating, Cooling & Plumbing has completed 20 jobs in Slinger, WI between September 2026 and October 2026.
The most recent job was on October 2, 2026.
Thielmann Heating, Cooling & Plumbing has completed 180 jobs in Slinger, WI in the last 12 months.
Job Locations and Reviews
Completed comprehensive HVAC system evaluation for furnace replacement estimate in residential mechanical room. Assessed existing beige furnace unit with open access panel, documented internal components including control board and wiring configuration, examined white PVC condensate drain and vent piping, and evaluated overall system condition. Photographed equipment specifications, warning labels, and surrounding infrastructure including ductwork and mechanical connections to provide accurate replacement recommendations and equipment sizing requirements.
Completed installation of residential tanked water heater system in utility closet, including all necessary plumbing connections, expansion tank, pressure regulation components, and safety devices. Configured copper and PEX piping with brass fittings to integrate new water heater with existing household water supply lines, installed blue expansion tank with proper mounting and connections, and verified all components meet code requirements for safe operation.
Completed installation of new tub trim and utility tub in basement area. Plumbing connections were established using copper supply lines, PEX water distribution tubing, and PVC drainage components including P-trap configuration. All fixtures were properly mounted, supply valves installed with brass fittings, and connections tested for leaks to ensure proper operation.
Completed full furnace installation in basement mechanical room with all required permits and electrical coordination. New HVAC unit was properly installed with gas valve connections, control wiring harness, and integrated ductwork system, including gas supply line configuration and flexible ducting. All electrical components were wired according to manufacturer specifications, access panels secured, and system tested for proper operation upon completion.
Completed scheduled heating maintenance visit as part of membership agreement. Performed comprehensive furnace inspection with front access panel removed to evaluate internal components, blower motor assembly, electrical connections, and control mechanisms. Documented significant rust staining and corrosion on condensate drip pan, indicating long-term moisture exposure and water accumulation. Inspected PVC intake and exhaust vent piping, drainage lines, and condensate removal system. Verified blower motor operation and examined all wiring connections including ground wire integrity. Unit remains operational with all mechanical components functioning, though condensate tray shows advanced deterioration requiring future attention.
# HVAC Service Report Responded to service call for leaking pressure relief valve on residential boiler system. Upon inspection, identified active leak at pressure relief valve connection point on copper supply piping. Valve assembly showed signs of deterioration at brass fitting connection. Replaced faulty pressure relief valve with new unit, ensuring proper torque specifications and seal integrity. Tested system operation under pressure to verify leak was eliminated. Confirmed all connections secure and system operating within normal parameters. No further leaks detected upon completion of repair.
Completed scheduled tune-up maintenance on residential HVAC system, replacing furnace filter and humidifier filter as requested. Inspected dehumidifier filter and verified all system components were operating within normal parameters, with furnace access panel secured upon completion of service.
Responded to service call for leaking gas tanked water heater. Upon inspection, identified a Rheem 50-gallon electric water heater (Model RE35035-3) with visible moisture at connection points. Examined all copper pipe connections, brass fittings, and pressure relief valve assembly at top of unit. Documented equipment condition with photos showing installation details, specification labels, and connection configuration. Contacted property owner with diagnostic findings and repair recommendations for tenant-occupied property.
Completed comprehensive plumbing inspection of residential property, focusing on reported tub handle malfunction and evaluation for utility sink installation. Inspected main water supply system including water meter, shut-off valves, and copper distribution lines; noted age-related discoloration on piping and evidence of previous water intrusion on ceiling tiles near plumbing assembly. Examined tub fixture and identified loose handle requiring repair or replacement. Evaluated water heater and HVAC systems in basement utility area, confirming Bradford White water heater operational status with proper connections and safety components in place. Documented all findings with photographs and prepared estimate for requested utility sink addition.
Completed comprehensive whole home plumbing inspection of residential property. Evaluated sump pump system in basement utility area, including PVC discharge piping, check valve operation, and pit condition. Inspected HVAC condensate drain line and connections, noting corrosion and mineral deposits on metal fittings that may require future attention to prevent potential leakage.
Completed furnace tune-up and safety inspection on residential gas heating system. Performed comprehensive maintenance including visual inspection of heat exchanger, burner assembly, and venting system; tested all safety controls and limit switches; checked and adjusted gas pressure; inspected blower motor and lubricated as needed; replaced air filter; verified proper drainage from condensate system; and confirmed all electrical connections were secure. Unit operating within manufacturer specifications with no deficiencies noted.
Responded to callback for reported dripping copper pipe. Upon arrival, inspected vertical copper plumbing system and associated connections in basement area. Located moisture on pipe surface and identified active drip at coupling joint near vertical run. Documented existing conditions with photos showing aged copper piping with visible patina, multiple connection points, and surrounding infrastructure including horizontal pipe runs and floor joists. Assessed joint integrity and connection points throughout accessible plumbing network to determine source and extent of leak.
Completed installation of customer-supplied toilet fixture. Removed existing toilet flange assembly and prepared subfloor substrate for new fixture mounting. Installed new toilet over existing flange, ensuring proper seal and secure connection to waste line, then tested for leaks and verified proper operation.
Completed comprehensive furnace and air conditioning tune-up service at residential property. Performed standard maintenance procedures on outdoor condensing unit, including refrigerant pressure testing using manifold gauges to verify proper system charge levels and operational efficiency. All equipment inspected and system operating within manufacturer specifications upon completion.
Completed furnace and air conditioning tune-up on Goodman/Amana model 51HNC103A-1A direct vent forced air system. Inspected heat exchanger coils, verified proper refrigerant lines, checked electrical specifications including 208/230V operation at 13.6 amps, and confirmed all components operating within manufacturer specifications.
Responded to service call for gas valve replacement on HVAC system. Upon arrival, performed diagnostic testing using digital multimeter to confirm gas valve failure. Removed defective gas valve assembly from unit and installed new replacement valve, ensuring all connections were properly secured and sealed. Completed system startup procedures, verified proper gas flow and valve operation, and confirmed unit returned to normal heating function.
Completed water heater replacement estimate for residential property. Assessed existing water heater installation in unfinished basement utility area, including evaluation of current copper supply piping, shut-off valves, venting system, and clearances around unit. Documented existing conditions with photographs showing water heater positioned adjacent to water softener and HVAC equipment. Provided customer with replacement recommendations and pricing options for new water heater installation.
Performed on-site assessment of upstairs shower fixture requiring cartridge replacement. Inspected chrome shower head assembly with flexible metal supply hoses, wall-mounted tub spout, and drain components to determine cartridge specifications and scope of work for replacement estimate.
Responded to emergency call for damaged copper L-pipe resulting from failed homeowner repair attempt. Upon arrival, assessed the compromised piping system in the attic/ceiling space where copper refrigerant or plumbing lines run parallel between exposed wooden rafters. Documented existing conditions showing multiple copper pipes with tan insulation tape sections and mounting brackets securing lines to structural beams. Evaluated secondary piping infrastructure in basement utility area where dark insulated pipes run horizontally along exposed brick walls, secured with metal mounting brackets at joints and directional changes. Completed diagnostic inspection of both affected areas to determine extent of damage and necessary repairs to restore proper function and prevent further water damage or system failure.
Completed comprehensive tune-up service on MagicPak rooftop HVAC unit. Performed standard maintenance procedures including inspection of evaporator coils, refrigerant lines, and ductwork system, with temperature diagnostics confirming supply air temperature of 116.9°F at the plenum. All components found to be operating within normal parameters with insulation and heat exchanger coils in satisfactory condition.
