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 repair, AC service, and full HVAC installs from a family-owned Plainfield shop operating since 2002.

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Plainfield HVAC Services From a Local Team

Leto Plumbing & Heating, Inc. provides heating system repair, furnace replacement, air conditioning service and HVAC maintenance for homes and businesses in Plainfield, IL, across 60585, 60586, 60543 and 60544. When your furnace quits at midnight, you get people who live here, not a dispatch center in another state.

Many Plainfield HVAC systems are now old enough for worn heat exchangers, failed capacitors and efficiency losses that show up on the bill first.

HVAC REPAIR

Furnace and Heating Repairs Plainfield Homeowners Depend On

We answer at 2am when your heat stops, not just during business hours.

Larry Howard wrote that Chris "had the furnace fixed and heating the house in less than an hour." Our background-checked crew carries the right parts and never subcontracts. Uneven temperatures, short-cycling, banging at startup or an unexplained bill jump are worth a call to (815) 609-3150 before a minor fix becomes a replacement.

HVAC Installation and Replacement in Plainfield

A furnace past fifteen years with a cracked heat exchanger is a safety issue, and we say so. Before any heating system installation, we run a load calculation on your square footage, insulation and ductwork, because oversized systems short-cycle and undersized ones never catch up in a Will County January. We handle the Village of Plainfield Building Department permit, and rough-in stays exposed until the Plumbing Inspector signs off.
Mechanical room with a furnace and piping

WHAT WE COVER

Full Range of HVAC Services for Plainfield Homes

One call handles the whole system, from the thermostat to the condenser.

Furnace Repair and Replacement

Diagnostics through replacement on all major brands. Repair or replace, you hear it before we touch anything.

AC Service and Installation

Seasonal startup checks, refrigerant issues, condenser service and central AC installs.

Thermostat Repair and Upgrades

Half the calls that sound like system failures are a faulty thermostat. We offer thermostat repair and smart thermostat installation, and a programmable model beats the manual dial in a 2003 build.

Preventive Maintenance

Annual inspections catch what breaks in season. Most failures we see were preventable.

  • Heat pumps and mini split systems
  • Heating system diagnostics and efficiency checks
  • Air filter replacement and indoor air quality basics
  • Emergency HVAC calls, 24 hours a day, every day

What Plainfield Water Does to Your HVAC System Over Time

Plainfield buys Lake Michigan water through Illinois American Water, and the Village lists its hardness at 6.3 grains per gallon. Scale on humidifier drums and pads cuts humidity, condensate lines clog and back up, and boiler heat exchangers scale on the water side. Heating system maintenance catches it early. Ask about a water filter if taste or scale bothers you.
Basement mechanical room with a furnace and piping

Straight from Google

What Plainfield Customers Have Said

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 Plainfield Homeowners Ask Us

How often should Plainfield homeowners schedule HVAC maintenance?
Twice a year, before heating season and before cooling season. Plainfield winters push furnaces hard. Because of the moderate water hardness, humidifier parts and condensate drains get extra attention at the fall visit.
My Plainfield home was built around 2003. What HVAC issues should I expect?
Most Plainfield homes went up between 2000 and 2009, so original equipment is now 15 to 20 years old. That's when heat exchangers show fatigue, AC capacitors fail more often and blower motors draw extra current. If your system is original, schedule a diagnostic before the coldest night of the year.
What's the difference between repairing and replacing a furnace in Plainfield?
If a repair costs a large share of a new unit and the system is over 15 years old, replacement is usually worth pricing. A cracked heat exchanger always means replacement. For most failures on a system under 12 years old, repair is right. We give you both numbers.
Can you handle both plumbing and HVAC in the same visit for my Plainfield home?
Yes. Rick and Chris handle both, which is why customers like Ted Kawczynski have stayed for years. A furnace tune-up and a water heater check can be one visit instead of two appointments with two companies.

Schedule HVAC Service in Plainfield Today

We cover all of Plainfield, IL, including zip codes 60585, 60586, 60543, and 60544.

  • ★ 4.8 on Google
  • BBB A+
  • Licensed & insured
24/7 emergency service (815) 609-3150
Request an 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.