MDM Plumbing & Sewer
Plumber · Schaumburg, IL · Open 24 hours per Google listing
Our verdict
88 reviews analyzed, all 5-star; same-day work (16 mentions) and water heater installs (12) anchor the volume, with Dennis named in nearly every quote and BBB A+ accreditation with 0 complaints.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Our opinion, based on the 88 reviews we analyzed from Google, Yelp and BBB · Analysis updated May 2026 · How we decide ↗
Lists 24-hour service on its Google profile — and reviewers describe after-hours calls.
What reviewers praise
Same-day water heater swaps and within-hour arrivals cited repeatedly (fast_response = 16 of 88), including tankless Navien installs and Saturday faucet calls.
1 cited review
“I called MDM and they arrived within an hour. Dennis was extremely professional and amazing to work with. He put together a quote before he started working and explained what my problem was and his best recommendation.”
Cited in 3 of the 88 reviews we analyzed — 2 cited reviews not excerpted here.
Owner Dennis named in 11 of 12 quotes; reviewers cite walking through estimates before work, no upsell pressure, and same-day finishes under 90 minutes.
2 cited reviews
“He gave me a fair price and I didn't hesitate.”
“I called MDM and they arrived within an hour. Dennis was extremely professional and amazing to work with. He put together a quote before he started working and explained what my problem was and his best recommendation.”
Cited in 3 of the 88 reviews we analyzed — 1 cited review not excerpted here.
Christmas-Eve and weekend coverage delivered: contacted Dec 24, scheduled with texts and emails, pipes cleared within hours.
1 cited review
“I contacted them Christmas Eve and they were very responsive, giving me quick scheduling options, texts and emails with necessary information for moving forward.”
Cited in 2 of the 88 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.
Single slow_response signal appears in themeCounts (1 of 88) inside a 5-star review — thin but not zero on speed.
Cited in 1 of the 88 reviews we analyzed.
Keep it in proportion: these concerns are cited in 1 of the 88 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Positive
“I can’t say enough good things about my service today with Dennis. He took his time, explained everything along the way, and was extremely thorough, personable, and trustworthy. He gave me a clear estimate, was not pushy, I learned things about my home that I never knew before. Working with a family-owned business was the icing on the cake! I highly recommend Dennis and MDM for all of your plumbing needs! Thanks!”
“I found my new plumber! I've been using a friend for years, but I needed immediate help. I needed a tankless water heater option and chose a Navien product and was looking for a certified installer. I got several quotes, and decided to go with MDM after meeting Dennis. Dennis is extremely knowledgeable and professional. He really cares about his customers and the work he does. I was confident that he would do a …”
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
Newest review in our sample: Mar 2026.
Across platforms
Should you hire MDM Plumbing & Sewer?
Best for
- Emergency and same-day calls
- Water heater install/repair
Hire if
- You need a plumber who actually shows up when scheduled
- You need fast same-day or after-hours response
Think twice if
- You need rock-bottom prices with zero flexibility on the quote
- You need warranty-grade work on a complex or high-stakes install
Advice derived from the review analysis above — how we decide.
Own MDM Plumbing & Sewer?
You can respond to our analysis, correct business facts, or dispute the accuracy of a quoted review. Responses that check out get published on this page, and factual errors get corrected — see our corrections policy. We don't remove accurate quotes, but we'll re-run your assessment as your reviews change.
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