Provider profile

Environmental Xtreme Sanitizing LLC

DC, WA / 4.9 rating / 59 reviews / Water damage restoration service

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Provider snapshot

What this listing says

Frederick, MD homeowners dealing with mold after water damage who want one company to handle extraction, remediation, and duct cleaning under one roof with ozone treatment.

Ozone treatmentWater + mold combo jobsUV light purifier installDuct cleaning
Base location DC, WA
Provider type Restoration company
Public reviews 4.9 from 59 reviews

Best for

  • Frederick, MD and Washington, DC homeowners who need mold remediation paired with water damage restoration from a single company.
  • Buyers who want ozone treatment as part of their mold or duct cleaning service — this is a core part of their process, not an upsell.
  • Homeowners with mold in HVAC systems who need duct cleaning and remediation handled together rather than coordinating separate contractors.
  • Property owners who want a UV light air purifier installed in their HVAC system for ongoing air quality improvement after remediation.

About this company

Environmental Xtreme Sanitizing is a Frederick, MD restoration company that handles mold remediation, mold testing, water damage restoration, air duct cleaning, dryer vent cleaning, and pressure washing. They also serve Washington, DC. Their primary identity is air quality services — they started as a duct cleaning outfit and expanded into mold and water work.

What stands out is their ozone treatment process. They use ozone to neutralize mold at a molecular level, eliminate odors, and decontaminate HVAC systems after cleaning. On their DC mold page, they describe containment with negative air pressure systems to prevent cross-contamination. They also install UV light air purifiers inside HVAC systems as a long-term air quality measure. The water restoration side includes dehumidification equipment and sewer backup cleanup. The combination of ozone, UV purification, and standard remediation is uncommon for a company this size.

The company is locally owned and operated out of Frederick, MD 21703. The owner, known in reviews as Chris, Kris, Krish, or Krishna, is frequently mentioned as being personally on-site and walking customers through each step. Roma Ramkissoon is also named as part of the operation. Multiple reviewers mention being referred by friends or family, and several are repeat customers who came back for additional services.

4.9 stars across 59 Google reviews is a strong rating. Only one review in the last 18 months fell below 4 stars. The volume is modest, but the consistency is notable — nearly every written review mentions the owner by name and describes a specific positive interaction.

Services

Mold remediationmold testingmold inspectionwater damage restorationemergency water extractionair duct cleaningdryer vent cleaningozone treatmentUV light air purifier installationpressure washingsewer backup cleanupstructural repair and restoration

Service area

Based in Frederick, MD 21703. Serves Frederick and surrounding cities in Maryland, plus Washington, DC. The DC service area is roughly 50 miles from their Frederick headquarters, so response times and availability for DC jobs may differ from local Frederick work.

Review consensus

What reviewers praise

Chris (also referred to as Kris, Krish, and Krishna) appears in reviews spanning 2020 through 2026. Reviewers consistently praise him for showing up personally, explaining each step before starting, and being transparent on pricing. Roma Ramkissoon is named separately as courteous and ensuring service quality. Multiple reviewers highlight same-day or next-day response to emergencies, especially water damage and pipe bursts. Before-and-after photos shown during the job are mentioned repeatedly. Several reviewers note the air quality difference was immediate and noticeable. Repeat customers and referral-based bookings are a recurring theme — many reviews mention being sent by a friend or returning for a second service.

What low reviews reveal

1 found across 59 total reviews at 4.9★. The single recent negative is a 2-star review from Madelyn (August 2025) describing an air duct and dryer vent cleaning. The technicians arrived an hour late, left debris throughout the house, missed one of two return vents, and did not clean the air handler on the first visit. After she called the office, they sent the crew back to finish the missed items, but she also discovered a 3.7% credit card processing fee that was not disclosed before her card was charged. The owner responded, acknowledging one technician was a trainee and saying the fee is charged by the credit card company and noted on the invoice. The complaint is specific and detailed — the reviewer has 12 other Google reviews, lending credibility. However, this is the only negative in 59 total reviews.

Pattern worth noting

With 59 reviews and only one negative, the pattern here is consistency rather than complaint volume. The owner responds to the one negative with specific context (trainee involved, fee is on the invoice) rather than a template deflection. Across positive reviews, the same themes repeat: personal attention from the owner, step-by-step explanations before work begins, and same-day emergency response. The company appears to be a small, owner-operated outfit where Chris personally handles many jobs, which likely explains both the high satisfaction rate and the risk when a trainee fills in.

Named staff

Chris / Kris / Krish / Krishna (owner — consistently praised across dozens of reviews for hands-on involvement, transparency, and responsiveness). Roma / Roma Ramkissoon (staff — praised for courtesy and ensuring service quality, named in multiple reviews).

Bottom line

With 58 out of 59 reviews at 5 stars and the owner personally involved in most jobs, the track record is strong. Ask for Chris by name and confirm he will be on-site or supervising. The one negative suggests quality can slip when less experienced crew handles jobs solo — ask upfront who will be doing the work and whether trainees will be involved.

Keep in mind

  • They do both mold testing and mold remediation. A company that finds mold and then gets paid to remove it has a financial incentive to find more. Consider getting an independent test before or after their work.
  • One recent reviewer reported debris left throughout the house after an air duct cleaning, a missed return vent, and an undisclosed 3.7% credit card processing fee. The owner acknowledged a trainee was involved and said the fee is standard but noted on the invoice.
  • The website claims service in both Frederick, MD and Washington, DC. Frederick to DC is roughly 50 miles. Ask whether DC jobs carry additional travel charges or longer response times.
  • The website is heavy on marketing language and light on specifics about certifications, equipment brands, or team size. Ask directly about credentials and how many technicians will be on your job.