Demmis Plumbing
DOWNERS GROVE, IL PLUMBING SERVICES

Your Local Downers Grove, IL Plumber
When plumbing problems strike in Downers Grove, IL, don’t let them disrupt your peace of mind. Demmis Plumbing, a family-owned business serving the community since 1999, is here to help.
Contact us today at (630) 991-3641 or visit our website to schedule an appointment. We’re here to ensure your Downers Grove, IL home’s plumbing system functions optimally, giving you peace of mind and a comfortable living environment.
We Specialize In
24/7 Emergency Plumbing: We’re available any time, day or night, to address urgent plumbing issues in Downers Grove, IL. Whether it’s a burst pipe or a clogged drain, our licensed plumbers will arrive quickly and diagnose the problem efficiently.
Home Plumbing Expertise: From leaky faucets and malfunctioning toilets to complex drain cleaning and water heater installation, we handle all your residential plumbing needs in Downers Grove, IL.
Appliance Installation: We ensure a seamless hook-up for your new washing machine, dishwasher, or any other appliance requiring plumbing connections.
Garbage Disposal Services: Keep your kitchen sink functioning flawlessly with our garbage disposal repair and installation services in Downers Grove, IL and beyond,
Complete Bathroom Solutions: We handle all aspects of bathroom plumbing in Downers Grove, IL, from faucet repair and toilet installation to shower upgrades and bathtub fixes.
Sewer Line Services: We maintain the health of your home’s plumbing system with sewer line cleaning, hydro jetting, and rodding services in Downers Grove, IL Our services also include backflow prevention to safeguard your water supply.
About Demmis Plumbing
As a local business rooted in Downers Grove, IL, we understand the unique plumbing challenges faced by our neighbors. We are committed to providing exceptional customer service, reliable solutions, and affordable rates.
Don’t wait, call now (630) 991-3641 or fill out form to schedule an appointment. We’re here for you, ready to tackle any challenge with the warmth and dedication only a local family business can offer.

We Serve Downers Grove, IL and Surrounding Areas:
Contact us today at (630) 991-3641 or visit our website to Schedule an Appointment.
We’re here to ensure your Downers Grove, IL home’s plumbing system functions optimally, giving you peace of mind and a comfortable living environment.
Demmis Plumbing is pleased to offer our services to residents in the following areas and beyond: Lemont, Homer Glen, Naperville, Downers Grove, La Grange, Palos Park, Darien, Palos Heights, Orland Park.
EXCELLENT Based on 134 reviews Mrs. G2025-02-04Trustindex verifies that the original source of the review is Google. I noticed that my water heater was leaking alot of water. Called Demmis they walked me through how to turn water off. And was out here in 2 hours to fix. Great service, quick reasonable price. I will def use them again. Thank you for your quick response Joe Crowley2025-01-30Trustindex verifies that the original source of the review is Google. Our sewer line failed on a Sunday morning. Called Demmis and they had someone out within 20 mins. They got us back online that day and repaired the issue in timely manner. Very professional and friendly. Would recommend to anyone looking for good plumber. Shana2025-01-20Trustindex verifies that the original source of the review is Google. Very fast service! I've used Demmis twice now and they were here quick! Reliable and friendly company. Will use again. Frank P2025-01-18Trustindex verifies that the original source of the review is Google. Great plumbers, they know their stuff and take pride in their work. Very courteous. evaldas sinickas2025-01-16Trustindex verifies that the original source of the review is Google. I had a problem with my water heater, so I called Demmis Plumbing. Alex was super fast—he showed up the same day! He was professional, knew his stuff, and took the time to explain the issue before replacing the unit. The price? Totally fair. I trust his expertise 100% and highly recommend Demmis Plumbing for any water heater problems! Jennifer Pantano2025-01-11Trustindex verifies that the original source of the review is Google. Highly recommended , very happy with quality of work and knowledge. Mylisa Jean2025-01-09Trustindex verifies that the original source of the review is Google. Service was excellent, they were very professional and if you want the job done right and quickly then you should definitely call them but the BEST WAS THE PRICE. I had someone come out the day before and there price was $550 over what they charged me here. They honestly treat you like family. The best service I have ever had by any company at all. They deserve more than 5 stars. Thank you Mylisa Todd Plekavic2025-01-09Trustindex verifies that the original source of the review is Google. Very professional! Super fast service.
Frequently Asked Questions
What services does your plumbing company provide?
- Drain cleaning
- Leak detection and repair
- Water heater installation and repair
- Fixture installation and repair (faucets, toilets, etc.)
- Sewer line repair and replacement
- Emergency plumbing services
What areas do you serve?
We are based in Lemont, IL, and proudly serve the surrounding neighborhoods, including:
We are always expanding our service area! If you are located outside of these areas, please contact us directly to see if we can accommodate your plumbing needs.
What are your hours of operation?
Our regular business hours are:
- Monday: 7 AM – 9 PM
- Tuesday: 7 AM – 9 PM
- Wednesday: 9 AM – 9 PM
- Thursday: 7 AM – 9 PM
- Friday: 7 AM – 9 PM
- Saturday: 8:30 AM – 9 PM
- Sunday: 9 AM – 6 PM
We offer 24/7 rapid response for plumbing emergencies.
How do I schedule an appointment?
You have several convenient options to schedule your plumbing appointment:
Call us:
Send us an email:
Or fill out our online form here.
For plumbing emergencies, please call us directly for the fastest response.
What forms of payment do you accept?
We offer flexible payment options for your convenience:
- Cash
- Check
- Zelle, Venmo
- All major credit and debit cards
* Please note there is a 3% processing fee for card payments
What should I do in a plumbing emergency?
Plumbing emergencies can be stressful, but taking quick action can help minimize damage. Here’s what to do:
- Shut off the water main: This is the most important step to prevent further flooding. If you don’t know where your water main is located, contact us immediately for assistance.
- Call us immediately: Provide your contact information and a brief description of the emergency.
- Evacuate if there’s a gas leak: If you smell gas, leave the building immediately and call the gas company from a safe location. Do not use any appliances or light switches.
- Plumbing emergencies include: Burst pipes. Major flooding, Gas leaks, No water to the entire house.
Remember, we are here to help 24/7 in case of plumbing emergencies!
Can’t find the answer you’re looking for? Contact us.