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 Contractor in Plainfield, IL

Family-owned · Plainfield Local

4.8 from 53Google reviews

HVAC Contractor in Plainfield, IL

24 years serving zip codes 60585 and 60586, available every hour of every day.

Call or text(815) 609-3150

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Living room with wall-mounted ductless mini-split units

Plainfield HVAC Contractor Serving All Seasons

Leto Plumbing & Heating, Inc. is the family-owned HVAC contractor that has answered Plainfield, IL calls since 2002, at 2am included. Call (815) 609-3150 for heating system repair, AC service or a full replacement.

Plainfield's 60543, 60544, 60585 and 60586 run from 2000s subdivisions to older homes on the village's original streets. Newer homes often have variable-speed systems with controls that need a technician who knows them, while older builds may have original ductwork never sized for a modern high-efficiency unit. The frost line here runs 42 inches deep, so heat is not optional.

What Plainfield Homes Actually Need from HVAC

Local housing and climate shape every service call we run here.

Many Plainfield furnaces and AC units are now old enough that heat exchangers crack, capacitors fail and the repair-or-replace question gets real. We won't push a replacement when repair is right, or patch a system that will leave you cold in January. Outdoor condensers and heat pump parts take a beating once the freezes start, so a September heating system maintenance visit pays off. Plainfield's Lake Michigan water, which the Village lists at 6.3 grains per gallon, still scales humidifier pads and bypass valves, and we check them on every heating call.
Outdoor AC condenser beside a brick home

OUR SERVICES

HVAC Work We Handle in Plainfield

From a thermostat that won't respond to a full furnace replacement. No subcontractors.

Furnace Repair and Replacement

All makes and models. Cracked heat exchanger or too old to fix? We'll walk you through heating system installation options.

Air Conditioning Service

Refrigerant leaks, failed capacitors, frozen coils. Central air conditioning service, usually same day in summer.

Thermostat Repair and Replacement

A bad thermostat makes a good system act broken. Thermostat repair, thermostat replacement and smart thermostat installation.

Mini Split Systems

For additions, garages and rooms the ducts don't reach, mini split systems are often the cleanest answer.

HVAC Maintenance

ComEd and Nicor Gas run rebate programs on some qualifying equipment, and we check current terms when quoting.

Emergency Heating Calls

Furnace out overnight? Call (815) 609-3150. A person answers, not a callback service.

PERMITS AND PROCESS

How Plainfield HVAC Permits Actually Work

The Village of Plainfield Building Department requires a mechanical permit for furnace replacements, new central air and boiler swaps. The permit triggers an inspection, and under-slab and rough-in work stays exposed until the inspector signs off. Skipping it can void insurance coverage for related damage and complicate a sale. We pull the permit, schedule the inspection and close out the paperwork.
Basement furnace with connected ductwork

Straight from Google

What Our 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

Common HVAC Questions from Plainfield Homeowners

What HVAC problems are most common in Plainfield homes?
Failing AC capacitors, cracked heat exchangers on furnaces 15 or more years old, and thermostat wiring from DIY smart thermostat swaps. Pre-2000 homes may have undersized ducts. Freeze-thaw stresses heat pump refrigerant connections every spring. Heating system maintenance before winter catches most of it.
How do I prevent my heating system from failing during an Illinois winter?
Service it before October, since Plainfield's first hard freeze typically arrives around October 22. A proper check covers the heat exchanger, igniter, flame sensor, filter and safety controls, plus the humidifier, where moderately hard water scales bypass pads. Two or more years without service? Book it before fall.
What should I do if my furnace stops working at night or on a weekend?
Check the thermostat batteries and filter first. A clogged filter trips the high-limit switch, a five-minute fix. Keep interior doors closed to hold heat. Still out? Call (815) 609-3150. We're Plainfield-based and answer every day, any hour.
Are there rebates available for new HVAC equipment in Plainfield?
Often. ComEd (electric) and Nicor Gas run rebate programs on some qualifying heat pumps, furnaces, water heaters and smart thermostats. Terms change, so we check current programs when quoting.

Call Leto for HVAC Service in Plainfield Today

24 years in Plainfield. No franchises, no subcontractors.

  • ★ 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.