Top 10 Mold Remediation Companies in South Dakota (2026)

Published: June 10, 20262026640 words3 min read

Key Takeaways

10 mold remediation firms in South Dakota qualified for this ranking based on verified data from public sources (BBB, Google, IICRC, EPA, Yelp, Angi, HomeAdvisor).
The top firm in this ranking is Rainbow Restoration of Sioux Falls, with a MetaScore of 88/100.
Every firm here carries at least one publicly verifiable signal — no firm appears in this article without a cited source.
This list is filtered to firms that explicitly offer mold remediation services. Multi-discipline firms appearing here have that service confirmed on their website or in their public certifications.
Methodology is published in full at restorationindex.com/methodology. Firms can request a correction at restorationindex.com/contact.

Sources cited in this article: Better Business Bureau, Institute of Inspection, Cleaning and Restoration Certification, U.S. Environmental Protection Agency, Google, Yelp, Angi, HomeAdvisor, and Restoration Index.

Based on aggregated public-source data from BBB Business Profiles, Google Business Profile reviews, IICRC certified member directory, EPA Lead-Safe registry, Yelp, Angi Super Service Award lists, and HomeAdvisor recognition, here are the top-ranked mold remediation firms in South Dakota. Each firm receives a 0-100 Restoration Index MetaScore weighted across 9 sources.

Top 10 Mold Remediation Companies in South Dakota — Ranked by Multi-Source MetaScore

Rainbow Restoration of Sioux Falls (Sioux Falls, SD) — MetaScore 88/100. BBB A+. founded 2009. The Local Best Sioux Falls winner. Read the full review.
Rapid City Restoration (Rapid City, SD) — MetaScore 87/100. BBB A+ accredited. founded 2016. Read the full review.
Clausen’s Cleaning & Restoration Inc. (Watertown, SD) — MetaScore 85/100. 4.8-star Google rating across 25 reviews. BBB A+ accredited. founded 1978. Read the full review.
SERVPRO of Rapid City / Spearfish (Rapid City, SD) — MetaScore 84/100. 4.8-star Google rating across 158 reviews. Read the full review.
ServiceMaster of Sioux Falls (Sioux Falls, SD) — MetaScore 82/100. BBB A+. founded 1998. The Local Best Sioux Falls winner. Read the full review.
Servpro of Brookings, Madison & Watertown (Watertown, SD) — MetaScore 80/100. 4.6-star Google rating across 68 reviews. BBB A+ accredited. IICRC certified. founded 2012. Read the full review.
24kt Cleaning (Aberdeen, SD) — MetaScore 74/100. Read the full review.
Rainbow International of Watertown (Watertown, SD) — MetaScore 74/100. 4.9-star Google rating across 10 reviews. BBB A+ accredited. IICRC certified. founded 2015. Read the full review.
FloorTec Restoration (Sioux Falls, SD) — MetaScore 70/100. IICRC certified. Read the full review.
INTEK Cleaning & Restoration Brookings (Brookings, SD) — MetaScore 59/100. 4.5-star Google rating across 8 reviews. BBB NR. IICRC WRT, FSRT, AMRT. Read the full review.

Top mold remediation firms in Sioux Falls

Rainbow Restoration of Sioux Falls leads Sioux Falls with a MetaScore of 88/100. Other top-ranked firms in Sioux Falls include ServiceMaster of Sioux Falls (MetaScore 82/100), and FloorTec Restoration (MetaScore 70/100).

Top mold remediation firms in Watertown

Clausen’s Cleaning & Restoration Inc. leads Watertown with a MetaScore of 85/100 and 25 Google reviews. Other top-ranked firms in Watertown include Servpro of Brookings, Madison & Watertown (MetaScore 80/100), and Rainbow International of Watertown (MetaScore 74/100).

Top mold remediation firms in Rapid City

Rapid City Restoration leads Rapid City with a MetaScore of 87/100. Other top-ranked firms in Rapid City include SERVPRO of Rapid City / Spearfish (MetaScore 84/100).

Frequently Asked Questions

How is the Restoration Index MetaScore calculated?

The MetaScore is a weighted average of nine normalized component scores: Google Business Profile reviews (25%), BBB rating + complaint history (20%), IICRC certification (12%), EPA Lead-Safe registry (8%), years in business (10%), Yelp reviews (10%), Angi Super Service Award (5%), HomeAdvisor Top Rated (5%), and regional industry awards (5%). Firms with sparse data have weights redistributed proportionally across the sources we did find. Full methodology at restorationindex.com/methodology.

Who is the top-ranked mold remediation company in South Dakota?

As of June 2026, Rainbow Restoration of Sioux Falls ranks #1 in South Dakota for mold remediation with a MetaScore of 88/100. The full ranking and per-firm breakdowns appear below.

How often is this list updated?

Firm-level data (reviews, BBB ratings, certifications) is refreshed every 30 to 90 days depending on the source. Awards and recognition fields refresh annually. The "Last refreshed" date below the article header reflects the most recent data refresh for this article.

Can firms pay to be included or ranked higher?

No. Restoration Index does not accept paid placement. The MetaScore is calculated identically for every firm in the index, whether or not they have any commercial relationship with Pleiades Consultancy (the publisher of this site). The methodology is published in full so firms can audit how the calculation works.

What if a firm I trust is missing from this list?

Coverage is rolling out city by city. If a firm meets our inclusion criteria (operating in the named region, offering mold remediation services, with at least one verifiable public signal), they will appear in future refreshes. Firms can also reach out via restorationindex.com/contact to request inclusion.

Sources & Further Reading

Every claim in this article is backed by at least one of the following third-party sources. Linked out to the publisher so you can audit the original.