24/7 emergency service Office Mon to Fri, 8 AM to 5 PM
Specials Save up to $200 4.8 · 53 Google reviews (815) 609-3150
HVAC Services in Plainfield, IL

Family-owned · Plainfield Local

4.8 from 53Google reviews

HVAC Services in Plainfield, IL

Furnace repairs, AC installation, and full HVAC maintenance from a licensed, family-owned Chicagoland team available 24/7.

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furnace and ac installation work, professional service in Plainfield, IL

Plainfield HVAC Repair and Installation

Leto Plumbing & Heating, Inc. provides HVAC services in Plainfield, IL. When your system quits in a January cold snap or an August heat wave, call us at (815) 609-3150. We answer around the clock and handle everything from furnace repair and heating system installation to AC maintenance and thermostat replacement.

Many Plainfield homes were built in the late 1990s and early 2000s, and their original furnaces and air conditioners are reaching the end of a 15-to-20-year run. We'll tell you quickly whether a repair makes sense or replacement is smarter.

HVAC Services We Provide in Plainfield

Heating System Repair

Same-day diagnosis and repair of furnaces, heat pumps, and boilers. When Larry Howard's furnace went out, Chris had it heating again in under an hour.

air conditioning repair work, professional service in Plainfield, IL

Air Conditioning Repair

Short cycling, warm air, or no start. Our AC service article lists the signs to watch before summer.

Two air conditioner condensers outside a home

Furnace and AC Installation

Gas, refrigerant, and electrical hookups need a licensed technician. Our HVAC installation sizes the system to your home.

HVAC technician servicing an outdoor air conditioner condenser

HVAC Maintenance

Two tune-ups a year: coils, refrigerant, controls, filters. Schedule heating system maintenance before you need it.

Thermostat Repair and Replacement

Thermostat repair, thermostat replacement, and smart thermostat installation.

Heat Pumps and Mini Splits

A strong fit for additions, converted spaces, and homes where extending ductwork isn't practical.

What to Expect

How Long Will Your HVAC System Last?

Knowing the typical lifespan of your equipment helps you plan instead of react.

No one can promise an expiration date, but the equipment data is clear, and many Plainfield homes with late-1990s systems are at the decision point now. Tank and tankless units last longest with hot water heater maintenance; see our water heaters page. Typical lifespans:
  • 10 to 15 years for air conditioners and heat pumps
  • 15 to 20 years for furnaces and boilers
  • 30 years of geothermal energy
  • 10 years for water heaters
  • Tankless water heaters have a 20-year lifespan

Plainfield Specifics

What Plainfield Homes Actually Need From an HVAC Contractor

If you're calling about the third repair in two years on an 18-year-old furnace, we'll tell you honestly where that money should go. Plainfield's moderately hard water scales humidifiers, coils, and heat exchangers, one reason semi-annual maintenance pays for itself here. Heavy clay soils and flood-prone zones raise basement humidity, which stresses your AC; we handle the HVAC side and our sump pump services cover drainage. The Village of Plainfield Building Department requires permits for equipment replacement, and we handle them.
hvac maintenance work, professional service in Plainfield, IL

Financing Options for HVAC Work in Plainfield

Easy payment options and low financing are available, and we won't upsell you into a bigger system than your house needs. Ask when you schedule your free estimate.

Straight from Google

What Plainfield Customers Say

4.853 verified Google reviews
Chris gave us EXCELLENT service! Focused on the plumbing issue and walked us thru what all he did! Polite and answered all of our questions!
Kathy WendellSep 2026 · Google
Written on behalf of my mom Annie: I am very satisfied with Chris Leto's service. He addressed the issue quickly and professionally. Charged a fair price.
Alvin KFeb 2026 · Google
In February of 2026 I used Leto Plumbing & Heating on two occasions. First for an emergency after hours weekend call when my sump pump line was frozen during our recent sub-zero weather. The second was a routine maintenance call to flush my hot water heaters. Both times the individuals that came out were pros who were friendly, knowledgeable and got the job done right the first time. Would highly recommend!
Craig LattoFeb 2026 · Google
Spectacular service! On time ✔️ Fast troubleshooting ✔️ Explained the problem clearly ✔️ Fixed repair in less than an hour ✔️ Fur babies approved ✔️ Good human being ✔️ Father son family owned ✔️ My go to for all HVAC problems ✔️
DeAnn CarringtonJan 2026 · Google
Leto Plumbing is #1 for Plumbing Services! Chris did a great job fixing our problem. They are prompt, courtesy and fair priced!! ⭐️⭐️⭐️⭐️⭐️
Dave BernholdtMay 2026 · Google
Open clock under sink. Very professional service. Good result. Reasonable price.
Simon SongFeb 2026 · Google
Leto Plumbing has been servicing the plumbing and HVAC in our homes for many years. Rick and Chris, father and son, are amazing in every way. They are reliable, neat, courteous, and knowledgeable in all areas of plumbing and HVAC. They go out of their way to rush out to our home for needed repairs and new work. They may not be “cheap”, but you can rest easy that their work is top quality and will give you peace of mind. TFK St. Charles
Ted KawczynskiFeb 2026 · Google
Very happy with the service received by Leto plumbing. Starting with phone call made, very nice and was able to get us scheduled next day. Chris, technician, was earlier than originally expected (which was great), he explained everything, was very courteous and timely. Extremely happy with service provided and will be calling Leto for any future needs.
Christy MundyDec 2025 · Google
Read all 53 reviews

HVAC Questions from Plainfield Homeowners

How often should I have my HVAC system serviced if I live in Plainfield?
Twice a year: early spring before you need the AC, and early fall before heating season. Starting winter with a dirty filter, low refrigerant, or a worn ignitor is how you end up with a no-heat call at 11pm in January.
Do you handle HVAC permits in Plainfield?
Yes. The Village of Plainfield Building Department requires permits for replacement and remodeling work. We file the permit application and schedule around inspections, so you don't manage the paperwork.
Does the hard water in Plainfield affect my HVAC system?
It can, especially with a whole-home humidifier. Mineral deposits scale humidifier pads and water panels, reducing output and making the unit work harder. If your air feels dry in winter despite a running humidifier, that's often why. We check it during maintenance.
What should I do if my furnace stops working overnight or on a weekend in Plainfield?
Call (815) 609-3150. We operate 24/7, every day of the year, with no answering service and no waiting until Monday. A no-heat call in a Will County winter shouldn't wait, especially with children or elderly family in the house.

Leto Plumbing & Heating Serves Plainfield and Will County

24 years in the trade. 4.8 stars. Available right now.

  • ★ 4.8 on Google
  • BBB A+
  • Licensed & insured
24/7 emergency service (815) 609-3150
Get Your Free Estimate Easy payments & low financing

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By submitting this form you agree that we may contact you about your request and share your name and email address with partner companies for email marketing. We never share your mobile number or text message consent with third parties or affiliates for marketing or promotional purposes.