94 plumbers filed 209 plumbing permits on homes in the City of Naperville from October 2023 to September 2026; 48 filed one in the last 12 months. The middle filed job value was $6,500. The most active in the last 12 months were J Blanton Plumbing/ JB Plumbing Service Inc (9 permits), Roto Rooter Services Company (7) and Courtesy Plumbing & Services (4); busy is not the same as careful. Side by side: permits filed, share finished and permits in the last 12 months for each firm. Pick what you value and the list re-orders.
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Top 5 by plumbing permits filed in the last 12 months. This is volume, not quality: a busy firm is not necessarily a careful one.
The 4 ZIP codes with the most plumbing permits on homes from October 2023 to September 2026. Each opens permits by trade and the most active firms there.
Before you move a slider, the list is in a default order built only from the permit record: how much of each firm’s record is this kind of job (weight 30), how often its permits reached completion (25), how many permits it filed in the last 12 months (15) and how quickly its permits closed (10). Each measure is ranked against the other 94 firms and pulled toward the middle when a record is short.
The order comes from the Naperville permit file, not from reviews: 48 of 94 plumbers filed a permit in the last 12 months and 92% of their permits a year or more old were finished. Nobody pays to be listed or to move up, and there are no star ratings or reviews. The sliders and presets change the weights, and the order changes with them. How the records work in Naperville.
We do not rate contractors. In this page’s default order, which uses only the permit record through Sep 2026, the top 3 are Roto Rooter Services Company (13 permits), J Blanton Plumbing/ JB Plumbing Service Inc (10 permits) and ABC Plumbing, Sewer, Heating, Cooling & Electric dba Perfect Home Services (8 permits). By permits filed alone, the most active is Courtesy Plumbing & Services with 18.
94 firms are on the list; the busiest filed 9 plumbing permits in the last 12 months and the middle firm filed 1 in the whole file. Line them up on the same public measures: permits filed, share of permits finished and usual filed job value. Pick what matters to you and the list re-orders, for example recent activity if you need someone soon. The order comes from the permit record only, and nobody pays to be listed or to move up.
94 firms filed at least one plumbing permit on homes in the City of Naperville from October 2023 to September 2026; 48 of them filed one in the last 12 months.
We have not matched license records to Naperville firms, so ask for the license number and check it yourself with Naperville contractor registration. How to check a contractor's license in Illinois →
Three you can check against this page: “How many plumbing permits have you filed in Naperville?” (the middle firm here filed 1; 48 of 94 filed one in the last 12 months); “What value will you put on the permit?” (the usual filed value here is $6,500); “Will you pull the permit in your company’s name, and when is the final inspection?” (92% of older plumbing permits here were finished). All 10 questions and how to check each →
On this page: 94 firms filed 209 plumbing permits from October 2023 to September 2026, and each firm’s name opens its own permit record. Every number comes from City of Naperville building permits (the current permit system plus the city's older records). To see one permit itself, search the address or permit number with the Naperville permit office. How the records work in Naperville →
We do not rate or collect reviews. Instead each of the 94 plumbers here is shown with its permit record: 209 permits, the share finished and usual filed value. Read reviews on other sites and use this page to check them against the record. Reviews vs permit records →
Every number on this page comes from City of Naperville building permits (the current permit system plus the city's older records): 94 firms filed 209 plumbing permits on homes in the City of Naperville from October 2023 to September 2026, and 48 of them filed one in the last 12 months. The middle firm has 1 permit in the whole file. A short record leaves more uncertainty, and some jobs never require a permit.
The middle recorded permit value is $6,500. That is a filed estimate, not a quote or final bill. See how we compare records.
Most Naperville plumbing permits are filed in November (166 against an average month of 100); August is the quietest (57). When each trade is busiest in Naperville →