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Trusted Heating, Cooling & Plumbing Solutions in Marengo

Your #1 HVAC & Plumbing Service in Marengo, IL

Contact Us Today

Local HVAC & Plumbing Experts Since 1946

When you need reliable, professional HVAC or plumbing services in Marengo, IL, call on the team that's been serving the region since 1946. With more than 50 years of hands-on experience, Hansen Heating, Plumbing, and Air Conditioning brings unmatched expertise, top-tier equipment, and a commitment to exceptional customer service to every home we enter.

Whether you're looking to upgrade your AC system, replace a failing water heater, fix a furnace issue, or tackle a plumbing emergency, Hansen is here with solutions you can trust. We work on all major brands, offer fast scheduling, and back our work with warranties and long-term customer care.

Contact Hansen today for expert HVAC and plumbing service in Marengo, IL—and discover the difference local experience makes.

Air conditioner installation by Hansen HVAC Professional AC installation service in Huntley, IL Hansen technician installing a central air conditioning system
Est. in 1946, Redefining Exceptional Service

With over 70 years of experience in home comfort solutions, we are committed to delivering top-tier residential services.

High-End Products from Leading Brands

We install equipment from Armstrong Air, Mitsubishi, Weil-McLain, and Aprilaire, as well as Navien tankless water heaters and Bradford White tank water heaters.

24/7 Emergency Service & Reliable Customer Support

We're available around the clock for urgent HVAC & plumbing needs with responsive and customer-focused service you can trust.

Flexible Financing & Maintenance Plans

We offer hassle-free options for HVAC & plumbing installations as well as maintenance plans for long-term system reliability.

AC Repair in Marengo, IL

Cooling Restored Fast—Right When You Need It

Hot summer day and your AC's blowing warm air? Don't sweat it—Hansen offers prompt, professional AC repair in Marengo, IL. We repair all makes and models, including:

  • Central air conditioners
  • Ductless mini-splits
  • Ducted heat pumps
  • Thermostat and sensor issues
  • Electrical, fan, and compressor problems

We arrive with fully stocked trucks to fix most issues on the first visit—and we offer 24/7 emergency cooling repairs.

AC Installation in Marengo, IL

Energy-Efficient Comfort That Lasts

Need a system that can keep up with your home and the Midwest heat? We offer professional AC installation in Marengo using premium brands like Armstrong Air.

  • Central AC & heat pump installation
  • Zoned cooling & ductwork modifications
  • High-efficiency SEER-rated models
  • Smart thermostat integration
  • Financing options & rebate support

We design every system to fit your home and maximize comfort and efficiency.

Furnace Repair in Marengo, IL

Fast, Reliable Heating Repairs for Cold Winters

When your furnace fails, your home can get uncomfortable fast. Hansen provides furnace repair in Marengo, IL that's fast, accurate, and always done right.

  • Pilot light and ignition repairs
  • Flame sensor and gas valve service
  • Thermostat and fan issues
  • Furnace short-cycling
  • Emergency service available

We also service boilers, ducted heat pumps, and mini-splits, keeping your home warm no matter the system.

Furnace & Boiler Installation in Marengo, IL

Upgrade to Dependable, High-Efficiency Heating

Old furnace on its last leg? Planning a radiant heating upgrade? We provide furnace and boiler installation in Marengo, using top-rated brands like Armstrong Air and Weil-McLain.

  • Natural gas and electric furnace installs
  • Boiler replacements and radiant systems
  • Zoning setups and smart controls
  • Clean, code-compliant installs
  • Full warranty on equipment and labor

Let Hansen make your winter heating more reliable, efficient, and affordable.

Service Finance Company

Flexible Financing Options for Home Comfort Upgrades

Investing in a new HVAC system, water heater, or major plumbing upgrade doesn’t have to be a financial burden. We offer flexible financing options to help make your home improvements more affordable. Whether you need a new furnace, AC, or water heater, we work with you to find a solution that fits your budget.

Ask us about our financing options and find out how you can upgrade your home comfort with affordable monthly payments!

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Flexible Financing Options for Home Comfort Upgrades Flexible Financing Options for Home Comfort Upgrades Flexible Financing Options for Home Comfort Upgrades

Plumbing Services in Marengo, IL

Full-Service Residential Plumbing Repairs & Upgrades

From dripping faucets to full repipes, Hansen handles it all. We provide residential plumbing services in Marengo, including:

  • Toilet, sink, and faucet repairs
  • Kitchen and bathroom plumbing
  • Fixture installation (Moen, Delta, Kohler)
  • Water pressure issues
  • Pipe repairs and slab leak detection
  • Whole-home repiping and remodel plumbing

We work cleanly, explain every step, and deliver plumbing that lasts.

Water Heater Installation & Repair in Marengo, IL

Hot Water When You Need It, Installed Right

Is your water heater leaking, unreliable, or just outdated? Hansen installs and services both tank and tankless water heaters in Marengo, including:

  • Bradford White tank systems
  • Navien tankless models
  • Gas and electric water heater repair
  • Circulation pump installs
  • Water heater flush & descaling

Our technicians help you choose the right size and system for your home and water usage.

Indoor Air Quality Solutions in Marengo, IL

Healthier Air Starts with Proven Products

Indoor air quality matters—especially in closed homes during cold Illinois winters. Hansen offers comprehensive indoor air quality services in Marengo, including:

  • Whole-home humidifiers and dehumidifiers
  • AprilAire air cleaners and filtration
  • Reme Halo UV light air purification
  • HVAC air balancing and airflow testing
  • Allergy, asthma, and odor control

Breathe easier with systems designed to improve health, comfort, and HVAC performance.

Drain Cleaning & Sewer Services in Marengo, IL

Get Water Flowing with Professional Drain Solutions

Slow drains or frequent clogs are more than an inconvenience—they can be signs of bigger issues. Hansen delivers fast, safe drain cleaning in Marengo, including:

  • Drain snaking and clog removal
  • Sewer line video inspections
  • Hydro jetting for full line clearing
  • Root intrusion and buildup removal
  • Drain repair and pipe replacement

We don't just clear clogs—we fix the problem and help prevent future ones.

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Armstrong Air Pro Team
Weil-McLain
AprilAire
Mitsubishi Electric
Reme Halo from RGF
Bradford White
Naiven
Armstrong Air Pro Team
Weil-McLain
AprilAire
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Reme Halo from RGF
Bradford White
Naiven
Hansen Body 19
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Hansen Body 15
Hassle-Free Maintenance Plans for Year-Round Comfort />
                <img loading= Hassle-Free Maintenance Plans for Year-Round Comfort

Hassle-Free Maintenance Plans for Year-Round Comfort

Regular maintenance is essential to keeping your heating, cooling, and plumbing systems running efficiently and preventing unexpected breakdowns. Our customized maintenance plans are designed to extend the lifespan of your equipment, improve energy efficiency, and help you avoid costly repairs. With priority scheduling and exclusive service benefits, staying comfortable has never been easier.

Same Day Priority Service

Schedule Reminders for Annual Service

Annual Water Heater Maintenance*

Plumbing Inspection

Annual Furnace Maintenance

Annual A/C Maintenance

25% Discount on Service Repair Parts

1 Year Warranty on Installed Parts

Contact us today to learn more about our maintenance plans and how they can protect your home’s HVAC and plumbing systems!

*Not including tankless water heater flush

Sign Up Today   More Info on Maintenance Plans

Gas Piping Installation & Repair in Marengo, IL

Safe, Licensed Gas Line Services

Need to install a new gas appliance or fix a line? Hansen offers gas piping services in Marengo, performed by licensed professionals.

  • Gas line installation (black iron & CSST)
  • Appliance hookups (ranges, grills, dryers)
  • Outdoor fire pits and generators
  • Leak detection and emergency repair
  • Code-compliant installs and inspections

We handle permitting, testing, and full installation for your safety and peace of mind.

Duct & Dryer Vent Cleaning in Marengo, IL

Improve Efficiency and Reduce Fire Risk

Dust, lint, and buildup in your ducts and dryer vents don't just reduce efficiency—they increase health and safety risks. Hansen offers duct cleaning and dryer vent cleaning in Marengo, including:

  • Whole-house duct system cleaning
  • Mold and debris removal
  • Vent inspection and sealing
  • Dryer vent lint clearing
  • Airflow testing and HVAC optimization

Cleaner ducts mean healthier air and longer system life.

Customer Reviews & Testimonials

Find out why homeowners in Huntley, IL and the surrounding areas trust Hansen Heating, Plumbing, and Air Conditioning for reliable HVAC, plumbing, and air conditioning services. Our customers appreciate our dedication to comfort, efficiency, and exceptional service—every time.

Why Marengo Homeowners Choose Hansen

Local Experience, Trusted Service Since 1946

Hansen Heating, Plumbing, and Air Conditioning isn't a franchise—we're a locally trusted, family-owned team that's been serving Marengo and surrounding areas for decades. Our customers choose us because we provide:

  • Over 50 years of real experience
  • 24/7 emergency service availability
  • High-quality equipment from premium brands
  • Certified, insured, background-checked techs
  • Clean workmanship and respectful service

When you want it done right, you want Hansen.

Marengo Service Area Coverage

We proudly serve all of Marengo, IL, including:

  • Indian Trails
  • Prairie View Meadows
  • Harmony Hills
  • Downtown Marengo
  • Coral Township
  • And surrounding areas including Union, Hampshire, and Woodstock

If you're unsure if you're in our service area—just give us a call!

Let's Get Started with Trusted HVAC & Plumbing in Marengo, IL

When it comes to your home's heating, cooling, and plumbing, you shouldn't have to settle for anything less than dependable, high-quality service. At Hansen Heating, Plumbing, and Air Conditioning, we've been proudly serving Marengo, IL homeowners since 1946, bringing over 50 years of real experience to every project we complete.

We understand how important comfort and functionality are in your home, and that's why we offer a full range of expert services—from furnace repair and AC installation to water heater replacement, drain cleaning, and gas line upgrades. Our team of licensed, bonded, and insured professionals handles every job with precision, honesty, and respect for your time and property.

At Hansen, we believe in doing things the right way—with premium products, quality craftsmanship, and a level of customer service that sets us apart. We install and service equipment from top brands like Armstrong Air, Weil-McLain, Mitsubishi, Navien, Bradford White, and AprilAire, so you can feel confident that your investment will perform for years to come.

Our Marengo Services Include:

  • Central AC repair and installation
  • Furnace and boiler service and replacement
  • Tank and tankless water heater installs
  • Full plumbing services & repiping
  • Drain cleaning and sewer video inspections
  • Indoor air quality solutions
  • Gas piping installation & safety checks
  • Duct & dryer vent cleaning

We also offer flexible financing options and custom maintenance plans to help protect your systems and give you peace of mind year-round.

Whether you're dealing with a sudden breakdown or planning a home upgrade, Hansen is here to help with responsive scheduling, honest pricing, and trusted results.

Let's get started. Contact Hansen Heating, Plumbing, and Air Conditioning today to schedule your HVAC or plumbing service in Marengo, IL—and experience the reliable service your home deserves.

HVAC, Plumbing & Air Conditioning Specials and Coupons

Save on HVAC, plumbing, and air conditioning services with our limited-time specials and coupons. Check back regularly for new offers to help you keep your home comfortable without breaking the bank!

$250 OFF New System Install

$250 Off
New System Install*

Take $250 off a new system install when you purchase a new air conditioner and furnace unit.

*Valid with a purchase of both a furnace and air conditioning unit.

$100 OFF Installation Of IAQ Product

$100 Off
Installation Of IAQ Product

Enjoy $100 off the installation of one indoor air quality product including Reme Halo UV Lights, Aprilaire Filters, and Humidifiers.

1 Year Free of Our Maiuntenance Plan

1 Year Free
of Our Maintenance Plan

Get our maintenance plan for a year for free when you schedule a furnace AND air conditioning unit installation

$200 OFF One Navien Water Heater

$200 Off
One Navien Water Heater

Enjoy $200 off the installation of a high-efficiency Navien tankless water heater system in your home.

Hansen serves Huntley, IL and surrounding areas

Serving Huntley, IL & Surrounding Areas

As a proud Huntley Chamber of Commerce member, we are committed to serving our local community. Our residential HVAC and plumbing services extend to:

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Serving Huntley, IL & Surrounding Areas Serving Huntley, IL & Surrounding Areas Serving Huntley, IL & Surrounding Areas

Get the Answers You Need from Hansen's HVAC & Plumbing Experts

Frequently Asked Questions About HVAC & Plumbing in Marengo, IL

Yes. Hansen provides 24/7 emergency HVAC and plumbing service in Marengo, including furnace failures, burst pipes, AC breakdowns, and urgent water heater issues. We're here when you need us most.

We install and service systems from Armstrong Air (AC & furnaces), Mitsubishi (mini-splits), Weil-McLain (boilers), Navien (tankless water heaters), Bradford White (tank systems), and AprilAire (air quality products). We also service all major brands of HVAC and plumbing equipment.

Most HVAC system replacements in Marengo range from $5,000 to $12,000, depending on the unit's size, efficiency, and complexity. We provide free estimates and offer financing to make upgrades more affordable.

Yes. We install and maintain Navien tankless water heaters and can also service other brands. These systems offer endless hot water, greater energy efficiency, and space-saving designs.

Absolutely. We work with homeowners and contractors on bathroom and kitchen plumbing remodels in Marengo, including reroutes, new fixture installs, appliance hookups, and full rough-ins for renovations.

If you notice gurgling drains, bad smells, slow draining sinks or tubs, or recurring clogs, it's time for professional drain cleaning in Marengo. We use snaking, jetting, and sewer cameras to solve the issue completely.

Yes. Hansen is licensed to install and repair residential gas piping in Marengo, including gas lines for indoor appliances, outdoor kitchens, fire pits, and generators. We also handle leak detection and pressure testing.

Yes. We recommend duct cleaning every 3–5 years or more often if you have pets, allergies, or recent renovations. Our duct and dryer vent cleaning in Marengo improves air quality, system efficiency, and reduces fire risks.

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