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
Plumber in Oswego, IL

Family-owned · Plainfield Local

4.8 from 53Google reviews

Plumber in Oswego, IL

24 years in the trade, background-checked techs, and a team that picks up the phone at 2am.

Call or text(815) 609-3150

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Basement floor patched after drain line work

Oswego's Plumber for Every Job

Leto Plumbing & Heating, Inc. handles plumbing and heating system repair in Oswego, from a dripping faucet at 9pm to a burst pipe on a January weekend. Richard Leto has 24 years in the trade and the business holds 4.8 stars across 53 Google reviews. Call (815) 609-3150 to reach a real person, not an answering service.

Oswego sits in Kendall County, where the Fox River floodplain and clay-heavy soils strain drains and sewers. Village water from deep sandstone wells is hard and builds scale in water heaters, supply lines and fixtures. Homes built before 1986 may have corroded connections where lead can enter the water, even though the supply tests clean at the source.

OSWEGO WATER

Hard Water Here Is a Real Problem

What Oswego's sandstone aquifer does to your plumbing.

Hard water builds scale in tank water heaters, tankless water heater heat exchangers, shower valves and fittings. A heater that lasts 10-12 years in a soft-water market may show sediment symptoms here within five or six. Regular hot water heater maintenance extends that life, and we will tell you on-site whether a flush still handles it.
Water heater on a raised stand

Sewer Lines and Spring Drainage in Oswego

The Fox River and Waubonsee Creek have both flooded Oswego, and clay soils slow drainage even in moderate years, stressing sump pump systems and sewer lines every spring. Clay or cast iron sewer lines laid in the 1970s or earlier crack, take in roots and fail at the joints. Several slow drains, gurgling floor drains or basement sewage odor are worth a call. Our sewer service finds out what is in the line before recommending replacement.
Sewer cleanout cap in a front yard garden bed

Services We Provide in Oswego

Plumbing and HVAC under one license, so a furnace and a water heater failing the same week is one call.

Drain Cleaning

Mineral buildup, grease or roots. We clear it and tell you whether the line needs attention.

Drain cleaning equipment at a basement drain

Water Heater Service

Tank and tankless installation, repair and maintenance. Hard water makes annual flushing worth it.

Tank water heater in a basement

Toilet Repair and Replacement

Running toilets, broken flush mechanisms and full replacements. John Weisgerber had two toilets replaced without mess.

Close-up of a toilet base on a tile floor

Pipe Repair and Repiping

Older homes with original copper or galvanized lines are repiping candidates. We also do outdoor spigot replacement and valve replacement.

Furnace and Heating

Furnace repair and replacement, heating system maintenance and smart thermostat installation.

Sump Pump Service

Installation, repair and emergency response, a must near the Fox River floodplain during spring thaw.

Straight from Google

What Oswego 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

Service area

Oswego and the Surrounding Area

Leto Plumbing & Heating serves all of Oswego and the broader Fox Valley corridor.

Towns served
10
Around Plainfield
15 mi

10 towns. Pick one to see the route from our shop.

Home base

Next doorunder 8 mi

Close by8–15 mi

Also served

Our shop: 12407 Rhea Dr, Plainfield

Call Leto for Plumbing in Oswego

24 years in the trade. A real person answers.

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

Frequently asked questions

What should I do if I have a frozen pipe during an Oswego winter?
Find your main shutoff before winter so you can close it fast. Warm a frozen line slowly with a heat gun on low or warm wet towels, never open flame. If you see a crack, shut off the supply and call (815) 609-3150. We answer after hours.
Does plumbing work in Oswego require a permit?
Yes, for most structural work. The Village of Oswego Building and Permits Department requires permits for moving or adding drain lines, vent pipes or water supply lines. We pull them on every job that needs one. Unpermitted work causes problems when you sell or file an insurance claim.
How do I know if my Oswego home needs repiping versus a simple repair?
Pinhole leaks in several places, rust-colored water or low pressure throughout the house point to the pipe itself. Oswego homes from the 1970s or earlier may have galvanized steel lines corroded from the inside. Repairing one section buys time. We'll tell you straight which makes sense.
Why is my water pressure low in my Oswego home?
Usually scale from the 13-grain supply coating aerators, valve cartridges and pipes. Check the faucet aerator first. Low pressure house-wide points to the supply line, pressure regulator or main shutoff. Our blog covers low water pressure causes.

Related

Next step

Tell us about the job

Your name, your number and what needs doing. A person from Leto Plumbing & Heating, Inc. gets back to you.

Rather talk now?(815) 609-3150

No obligation · Responds within 1 business day

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.