Company history
Summary: Celtic Rainwater Systems, LLC is an Indiana limited liability company formed in 2022 (2 March 2022 in business-record aggregators). It publishes no founding story or owner name, so this history is limited to dated public records[1][3].
When was the company formed?
Celtic Rainwater Systems, LLC appears in Indiana business records as a domestic limited liability company. Business-record aggregators that republish Indiana Secretary of State data give its formation date as 2 March 2022[1]. The primary record is held in the Secretary of State’s INBiz business search, where anyone can look up its status, registered agent and filing history[2]. This reference gives the year as 2022 and treats the exact date as reported, not confirmed from the state filing itself.
The company website does not state a founding year or the length of time the team has worked in the trade[3]. It does not name an owner, either, and nor does its contact page[4]. Reviews on Angi and HomeAdvisor mention a crew lead by first name only[5]. Because no public record seen for this reference names the members of the LLC, this site does not name an owner.
Where does the name come from?
The company has not explained its name in any public source seen for this reference. Its contact page and footer give the full trading name, Celtic Rainwater Systems[4]. The phrase “rainwater systems” reflects the scope it describes: the company treats gutters, downspouts and below-ground drainage as one system for getting roof water away from a house. Its home page puts it this way: “Rainwater management does not stop at your gutter system, the water still needs to be taken off your property”[3].
How has the business developed?
The public footprint is small, but it shows a few things. The website lists four service lines, gutter installation, gutter cleaning, gutter guards and drainage[3]. Directory profiles on Angi and HomeAdvisor list more than a dozen service categories, from seamless metal gutters to copper and galvanized gutter work[5][6]. The Google Business Profile had collected 137 reviews by 9 November 2026, all averaging 5.0[7], and Nextdoor recorded the business as a Neighborhood Favorite in 2025[8].
The drainage page describes a range of below-ground work, from PVC downspout lines to whole-perimeter interior drains and sump pump basins[9]. That puts the company in two trades that are often separate: gutter installers on the roof line and drainage contractors in the yard and basement. The drainage services page explains what each method involves.
Has the address changed?
The website and the Google Business Profile both give 8059 Castleton Road, in the Castleton area on the northeast side of Indianapolis[4][7][10]. At least one older third-party directory lists a different, east-side Indianapolis address. This reference uses the address the company itself publishes and lists the other only as an unverified variant on the about page. The location and hours article includes the map.
Timeline
| Date | Event | Source |
|---|---|---|
| 2 March 2022 | Celtic Rainwater Systems, LLC formed in Indiana (as reported) | [1] |
| 2025 | Named a Nextdoor Neighborhood Favorite | [8] |
| 9 November 2026 | Google Business Profile: 5.0 from 137 reviews; Angi and HomeAdvisor: 5.0 from 9 reviews | [7][5] |
Dates on this table are limited to those with a public source. Anything not on it, such as when the first crew was hired or when the drainage line was added, is unknown to this reference.
See also
Common questions
When was Celtic Rainwater Systems founded?
Celtic Rainwater Systems, LLC was formed in Indiana in 2022; aggregators of state records give the date as 2 March 2022.
Who owns Celtic Rainwater Systems?
The company does not name its owner on its website, and this reference has not found a public record naming the LLC’s members, so no owner is named here.
How can I check the company’s registration?
Search for Celtic Rainwater Systems, LLC in the Indiana Secretary of State’s INBiz business search.
References
- ^ a b c Celtic Rainwater Systems, LLC (Indiana company profile). Bizapedia. Accessed 9 November 2026.
- ^ INBiz business search (Indiana Secretary of State). Indiana Secretary of State. Accessed 9 November 2026.
- ^ a b c d Celtic Rainwater Systems (home page: mission, about us, areas of expertise). Celtic Rainwater Systems (celticrainwater.com). Accessed 9 November 2026.
- ^ a b c Contact (request a free quote or on-site visit). Celtic Rainwater Systems (celticrainwater.com). Accessed 9 November 2026.
- ^ a b c Celtic Rainwater Systems LLC reviews, Indianapolis, IN. Angi. Accessed 9 November 2026.
- ^ Celtic Rainwater Systems LLC reviews, Indianapolis, IN. HomeAdvisor. Accessed 9 November 2026.
- ^ a b c Celtic Rainwater Systems, Google Business Profile (Maps listing, CID 10935833364039632680). Google Maps. Accessed 9 November 2026.
- ^ a b Celtic Rainwater Systems (business page). Nextdoor. Accessed 9 November 2026.
- ^ Drainage (PVC downspout drainlines, French drains, basement drainage and sump pumps). Celtic Rainwater Systems (celticrainwater.com). Accessed 9 November 2026.
- ^ Castleton, Indianapolis. Wikipedia. Accessed 9 November 2026.