Top 10 Mold Remediation Companies in Connecticut (2026)

Published: May 30, 20262026589 words3 min read

Key Takeaways

10 mold remediation firms in Connecticut 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 Crystal Restoration Services of Connecticut, Inc., with a MetaScore of 100/100.
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 Connecticut. Each firm receives a 0-100 Restoration Index MetaScore weighted across 9 sources.

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

Crystal Restoration Services of Connecticut, Inc. (Bridgeport, CT) — MetaScore 100/100. BBB A+ accredited. Read the full review.
BluSky Restoration Contractors Hartford Office (Hartford, CT) — MetaScore 100/100. BBB A+ accredited. founded 2002. Read the full review.
RestoPros of Hartford (Hartford, CT) — MetaScore 100/100. BBB A+ accredited. Read the full review.
Homeguard Environmental Services (Stamford, CT) — MetaScore 100/100. BBB A+ accredited. EPA Lead-Safe. founded 1987. Read the full review.
ServiceMaster Restore Services-Hamden (Stamford, CT) — MetaScore 100/100. BBB A+ accredited. Read the full review.
United Water Restoration Group of Stamford (Stamford, CT) — MetaScore 100/100. BBB A+ accredited. Read the full review.
BioClean (New Haven, CT) — MetaScore 82/100. 5.0-star Google rating across 41 reviews. BBB A+ accredited. IICRC certified. founded 1988. 2021 Angi Super Service Award. Read the full review.
New England Restoration LLC (New Haven, CT) — MetaScore 82/100. 4.9-star Google rating across 66 reviews. BBB A+ accredited. IICRC certified. founded 1986. Read the full review.
SERVPRO of Stamford (Stamford, CT) — MetaScore 78/100. 4.8-star Google rating across 80 reviews. Read the full review.
JP Maguire Associates, Inc. (Waterbury, CT) — MetaScore 78/100. 4.7-star Google rating across 63 reviews. BBB A+ accredited. IICRC certified. founded 1982. Read the full review.

Top mold remediation firms in Stamford

Homeguard Environmental Services leads Stamford with a MetaScore of 100/100. Other top-ranked firms in Stamford include ServiceMaster Restore Services-Hamden (MetaScore 100/100), United Water Restoration Group of Stamford (MetaScore 100/100), and SERVPRO of Stamford (MetaScore 78/100).

Top mold remediation firms in Hartford

BluSky Restoration Contractors Hartford Office leads Hartford with a MetaScore of 100/100. Other top-ranked firms in Hartford include RestoPros of Hartford (MetaScore 100/100).

Top mold remediation firms in New Haven

BioClean leads New Haven with a MetaScore of 82/100 and 41 Google reviews. Other top-ranked firms in New Haven include New England Restoration LLC (MetaScore 82/100).

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 Connecticut?

As of May 2026, Crystal Restoration Services of Connecticut, Inc. ranks #1 in Connecticut for mold remediation with a MetaScore of 100/100. 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.