Demmis Plumbing
Plumber · Orland Park, IL
Our verdict
Demmis Plumbing holds BBB A+ accreditation and 4.7★ Google — 87 of 100 analyzed reviews are 5-star with fast_response cited 26 times, Saturday/Sunday dispatches documented, and water heater + faucet installs completed same-day.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Our opinion, based on the 100 reviews we analyzed from Google, Yelp and BBB · Analysis updated Jun 2026 · How we decide ↗
What reviewers praise
Fast response with technician on-site within 20-30 minutes in multiple documented cases — themeCounts.fast_response=26 across 100 analyzed reviews
2 cited reviews
“On December 2, 2025, we had a sewer backup in the basement. Demmis Plumbing was called and they sent Alex. He was there in probably 30 minutes. Spent a few hours unclogging 2 drains and did an excellent job.”
“We called because our hot water heater was spraying water all over. Dan came out within an hour with a new hot water heater in his truck and replaced it on the spot. At the same time we replaced our kitchen faucet and outdoor spigot. Dan was very efficient and professional. With that being said, this plumbing company went above and beyond servicing us at a fair price!”
Cited in 3 of the 100 reviews we analyzed — 1 cited review not excerpted here.
Weekend/holiday dispatches documented multiple times — Saturday sewage backup, Sunday major issue, and same-day water heater + garbage disposal fixes across 4+ years of service (themeCounts.weekend_or_emergency=7)
1 cited review
“4 years ago when we first moved to Lemont our water heaters went out. Demmis came right away and was able to replace them. Then shortly after our garbage disposal went out and they came right away and fixed that. Then our pipes clogged and again they came to the rescue.”
Cited in 3 of the 100 reviews we analyzed — 2 cited reviews not excerpted here.
Pricing consistently described as reasonable/affordable across 22 of 31 plumber-cost mentions — technicians don't push unnecessary upsells (themeCounts.fair_pricing=6)
2 cited reviews
“I had a little stream of water in the bathtub pipes. At the same time I had a clogged drain. The prices were very reasonable. I only regret waiting so long to get this job done.”
“We called because our hot water heater was spraying water all over. Dan came out within an hour with a new hot water heater in his truck and replaced it on the spot. At the same time we replaced our kitchen faucet and outdoor spigot. Dan was very efficient and professional. With that being said, this plumbing company went above and beyond servicing us at a fair price!”
Cited in 3 of the 100 reviews we analyzed — 1 cited review not excerpted here.
What reviewers report — the concerns
Other directories bury these. We think you should read them before you call. Every concern below comes from the reviews it cites.
Phone dispatcher reported as rude and condescending in 1 of 12 negative reviews — front-office experience inconsistent with technician quality
Cited in 1 of the 100 reviews we analyzed.
Keep it in proportion: these concerns are cited in 1 of the 100 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Critical
“If you care about yourself or your family at all, please avoid them. They are great if you want newer things installed on top of a disaster. They clearly don't care about installing major plumbing on an infrastructure of twigs and tape. If you need to install something cheap and new to cover up rags, tape and rusted steel, they are your guys! If you see their sticker slapped on anything when looking at a new …”
“if I could give zero stars I would. The woman who answers the phone is rude and condescending and seems uneducated. couldn't work a slurpie machine at 7-11. The plumber had to come twice to fix the problem, that's how he makes his money. if you want to be talked down to and ripped off, Demmis plumbing is right up your alley.”
“Response to Owner - Thank you for following up. I just wanted to clarify that my concern wasn’t about the service charge itself — we fully understand and did pay an emergency fee with another company. My hesitation came from how the issue was handled over the phone. The tone of the conversation, including the “hmphs,” “interesting,” and the way the problem was discussed, felt dismissive rather than compassionate. I …”
Positive
“Outstanding service!!!! We had a bathroom sink problem that Alex was able to fix and fix quickly. Alex was on-time for the scheduled appointment, he was friendly, professional, and knowledgeable. If you have plumbing issues, I highly recommend Demmis Plumbing. I'm confident that you will be pleased.”
“We had a great experience with Alex who relocated our gas valve. He was very knowledgeable, professional and personable. Their service was reasonably priced. We would highly recommend Demmis Plumbing.”
Quotes are reproduced verbatim from public reviews on the platforms shown; we select which to feature, and selection reflects our editorial judgment. Report a quote that doesn't match its source ↗
The rating picture
Our sample skews heavily toward critical reviews — it disagrees with the Google average shown above.
Newest review in our sample: Jan 2026.
Across platforms
Should you hire Demmis Plumbing?
Best for
- Emergency and same-day calls
- Water heater install/repair
Hire if
- You need fast same-day or after-hours response
- You need a plumber who actually shows up when scheduled
Think twice if
- You need detailed walkthroughs and written estimates before work starts
- You need rock-bottom prices with zero flexibility on the quote
Advice derived from the review analysis above — how we decide.
Own Demmis Plumbing?
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Find plumbers near you
Demmis Plumbingisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: Homer Glen · Orland Park · Plainfield · Shorewood