December 24, 2025
Top 3 Emergency Mold Removal Companies in Montreal

🚨 Montreal’s Most Trusted Emergency Mold Removal Companies
Montreal homeowners face unique mold challenges. Spring flooding damages basements. Winter condensation creates attic problems. Humid summers trigger bathroom mold. You need fast, certified help when mold appears in your home.
⚡ Quick Answer
Mold Busters Montreal leads with same-day service and 20+ years of experience. Mold Inspection Montreal offers fastest emergency response (2-4 hours). Mold Remediation Service excels with eco-friendly solutions and comprehensive certifications. All three companies serve both residential and commercial properties with bilingual support.
🔍 How We Ranked These Emergency Mold Companies
We evaluated Montreal mold removal services using six critical factors that matter most during emergencies. Our team reviewed response times, certifications, customer feedback, and service capabilities to identify the best options for Montreal homeowners.
Speed of emergency arrival
True emergency capability
IICRC, RBQ licensing
Residential & commercial
English & French service
Quebec claims support
Mold Busters Montreal
Industry leader with proven track record

⚡ Quick Summary
Mold Busters has completed over 15,000 inspections across Montreal in 19 years. They offer same-day appointments, price-match guarantee, and unmarked vehicles for privacy. Their comprehensive service covers everything from mold testing to complete remediation.
📋 Core Services
Residential & commercial properties
Specialized containment protocols
Common Montreal problem areas
Laboratory spore analysis
Critical for pre-1980 homes
Post-remediation restoration
🏢 Is This for Residential or Commercial Property?
Both. Mold Busters serves single-family homes, condos, apartments, offices, and warehouses throughout Greater Montreal. Their team adjusts protocols based on property type and Quebec building codes.
For commercial properties, they work nights and weekends to avoid business disruptions. They provide detailed documentation for insurance and regulatory compliance.
⏰ Do They Offer 24/7 Emergency Response?
Customer Service: Available 24/7 for calls and booking
Inspection & Remediation: 8 AM – 5 PM daily
You can call anytime to schedule emergency service. The team arrives the same day for urgent situations booked before noon. After-hours calls receive next-morning priority scheduling. This hybrid model works well for most mold emergencies.
🚨 How Urgent Is Your Mold Situation?
Call Immediately If You See:
- Active water leak with visible mold growth
- Black mold larger than 10 square feet
- Mold in HVAC system or air ducts
- Health symptoms (breathing problems, headaches, rashes)
- Recent flooding or sewage backup
Schedule Within 48 Hours If:
- Small mold patches (under 10 square feet)
- Musty odors without visible mold
- Water damage from the past week
- Buying/selling a home and need inspection
Their experts help you assess urgency during your initial call and guide you on emergency versus standard service booking.
💼 Can They Help with Insurance Claims?
Yes. Mold Busters provides comprehensive documentation for Quebec insurance claims. They understand which insurers cover mold damage and prepare reports that adjusters accept.
Their reports include:
- Professional photographs of affected areas
- Laboratory test results showing mold types
- Detailed scope of work with itemized costs
- Timeline of damage progression
- Prevention recommendations
They work directly with insurance adjusters, saving you from being the middleman during stressful situations.
🇫🇷 Do They Offer Bilingual Service in Montreal?
All technicians speak English and French fluently. Reports come in both languages. Customer service representatives are fully bilingual.
This matters in Quebec where insurance paperwork and legal documents require French versions. You won’t face translation delays or miscommunication issues.
🏠 What Areas or Types of Mold Are Affected?
Mold Busters specializes in all common Montreal mold locations:
- Basement Mold: Most common due to spring thaw and summer humidity. They handle foundation seepage and sump pump failures.
- Attic Mold: Frequent in older Montreal homes with poor ventilation. Winter condensation creates perfect growth conditions.
- Bathroom Mold: Appears around showers, tubs, and behind toilets. They identify and fix ventilation issues.
- Kitchen Mold: Usually from leaking pipes or dishwasher issues. They check under sinks and behind appliances.
- Crawl Space Mold: Requires specialized equipment and containment procedures.
Learn more about common indoor air pollutants affecting Montreal homes.
💰 Pricing & Value
Mold Busters uses transparent pricing with no hidden fees:
- Visual Inspections: $300-400 for homes under 2,000 sq ft
- Complete Assessments: $600-800 with lab testing
- Emergency Service: No additional fees
- Online Booking Discount: 10% savings (code: ONLINE10)
They offer financing through partnerships with Quebec financial institutions. This helps homeowners handle unexpected mold costs without delay.
🎓 Certifications & Expertise
Industry standard
Quebec required
Advanced assessment
Verified practices
✅ Strengths
- Same-day emergency service available
- 20+ years of Montreal experience
- Price-match guarantee removes cost concerns
- Free virtual inspection before commitment
- Unmarked vehicles for discretion
- Full bilingual service and reporting
- Complete inspection + removal service
❌ Limitations
- Inspection hours limited to 8 AM – 5 PM
🎯 Best For
Choose Mold Busters when you need proven experience, same-day service, and help with insurance claims. Their complete service from testing to removal makes them the safest choice for Montreal emergencies.
Mold Inspection Montreal
Lightning-fast emergency response specialists

⚡ Quick Summary
Mold Inspection Montreal delivers the fastest emergency response in the city—arriving within 2-4 hours for urgent situations, 24/7. They specialize in testing and inspection, providing independent assessments without sales pressure. Perfect for homeowners who need quick answers about indoor air quality concerns.
📋 Core Services
True 24/7 availability
Finds hidden moisture
Mold species identification
Home buyer protection
Verify cleanup success
Spore count measurement
🏢 Is This for Residential or Commercial Property?
Both. Residential inspections meet real estate transaction requirements. Commercial inspections follow Quebec CNESST workplace safety standards with proper documentation for regulatory compliance.
⏰ Do They Offer 24/7 Emergency Response?
Yes. True 24/7 emergency service with 2-4 hour response time. Call any time, day or night. Weekend and holiday availability included at no extra charge.
This true round-the-clock availability helps during weekend flooding or late-night discoveries of major mold growth. You don’t wait until Monday morning to get professional answers.
🚨 How Urgent Is Your Mold Situation?
Call for Emergency 2-4 Hour Response:
- Active leaks with visible growth
- Black mold over 10 square feet
- Severe health symptoms
- Sewage contamination
- Urgent real estate deadlines
Their phone assessment determines appropriate response level, preventing unnecessary emergency charges while ensuring fast service when truly needed.
💼 Can They Help with Insurance Claims?
Yes. Reports include professional photos, lab confirmation, moisture data, and cost estimates. French and English versions meet Quebec insurance requirements. Many adjusters already trust their documentation.
🇫🇷 Do They Offer Bilingual Service in Montreal?
Complete bilingual service throughout. Phone support, inspections, and reports all available in English and French for seamless communication.
🏠 What Areas or Types of Mold Are Affected?
They inspect all Montreal mold locations including basements (spring flooding), attics (winter condensation), bathrooms and kitchens (plumbing leaks), HVAC systems (airborne spread), and crawl spaces (specialized equipment).
💰 Pricing & Value
- Visual Inspection: $300-400
- Complete Assessment: $600-800 (includes thermal imaging and lab work)
- Emergency Response: No additional fees
- Note: Inspection only—must hire separate company for removal
✅ Strengths
- Fastest response (2-4 hours, true 24/7)
- Independent inspection (no sales pressure)
- Advanced thermal imaging technology
- Same-day preliminary results
- Strong insurance documentation
- Free virtual pre-inspection
- Complete bilingual service
❌ Limitations
- Primary office in Ottawa (Montreal secondary)
🎯 Best For
Choose Mold Inspection Montreal when you need the fastest emergency response or independent assessment. Perfect for real estate transactions, second opinions, or situations requiring detailed testing without sales pressure.
Mold Remediation Service
Comprehensive certifications with eco-conscious approach
⚡ Quick Summary
With 15+ years of experience and six major certifications (IICRC, NAMP, InterNACHI, NORMI, NAMRI, CMI), Mold Remediation Service stands out for eco-friendly solutions and comprehensive expertise. They serve both Ottawa and Montreal with a focus on safe, healthy indoor environments.
📋 Core Services
Assess from home comfort
Detailed property assessment
Safe for family & environment
Latest technology tools
Stop future growth
Complete environment health
🏢 Is This for Residential or Commercial Property?
Both residential and commercial properties. Their experienced team handles everything from single-family homes to office buildings, using appropriate protocols for each property type and ensuring compliance with building standards.
⏰ Do They Offer 24/7 Emergency Response?
Contact availability through phone and email. Free virtual inspections provide quick initial assessment from home. Confirm on-site emergency response times when booking your service.
🚨 How Urgent Is Your Mold Situation?
Their free virtual inspection helps assess urgency level. Upload photos for expert evaluation before scheduling on-site service. This saves time and helps determine if you need emergency response or standard scheduling.
💼 Can They Help with Insurance Claims?
They provide detailed inspection reports and documentation. Their comprehensive approach includes moisture source identification and prevention recommendations that support insurance claims effectively.
🇫🇷 Do They Offer Bilingual Service in Montreal?
Service available in English. Confirm French language availability for reports and communication when booking Montreal appointments.
🏠 What Areas or Types of Mold Are Affected?
Complete mold assessment for all property areas. Their advanced technology identifies hidden moisture problems behind walls and in concealed spaces. Strong focus on preventing mold growth through source elimination and proper ventilation solutions.
💰 Pricing & Value
- Free virtual consultation
- Competitive pricing for on-site service
- Focus on preventive solutions reduces long-term costs
- Eco-friendly products protect family and environment
🎓 Comprehensive Certification Portfolio
Mold Remediation Service holds six major industry certifications, demonstrating their commitment to excellence:
Restoration industry
Mold assessment
Professional inspection
Remediation standards
Industry association
Mold inspection
✅ Strengths
- Six major industry certifications
- 19 years of proven experience
- Eco-friendly, safe solutions
- Free virtual inspections
- Serves both Ottawa and Montreal
- Named, experienced team members
- Focus on prevention and education
❌ Limitations
- Limited online emergency response details
- Smaller web presence than larger competitors
🎯 Best For
Choose Mold Remediation Service when you prioritize eco-friendly solutions and comprehensive certifications. Their free virtual inspection service and preventive approach work well for homeowners seeking thorough, environmentally conscious mold treatment.
📊 Quick Comparison Chart
| Feature | Mold Busters | Mold Inspection | Mold Remediation Service |
|---|---|---|---|
| Response Time | Same-day (business hours) | 2-4 hours (24/7) | Contact for details |
| Service Type | Full service (inspection + removal) | Inspection only | Full service |
| Experience | 20+ years | 15+ years | 19 years |
| Certifications | IICRC, RBQ, NAMP, BBB | IICRC, InterNACHI, NORMI | 6 major certifications |
| RBQ Licensed | ✓ Yes | ✓ Yes | Confirm for QC |
| Virtual Inspection | ✓ Free | ✓ Free | ✓ Free |
| Bilingual Service | ✓ Complete | ✓ Complete | English (confirm French) |
| Best For | Complete service | Fastest response | Eco-friendly approach |
🏠 Understanding Montreal Emergency Mold Situations
When Do You Need Emergency Service?
🚨 True Emergencies (Call Now)
- Water damage under 48 hours old
- Sewage backup with growth
- Black mold over 10 square feet
- Active leaks causing damage
- Severe breathing problems
⚠️ Urgent (24-48 Hours)
- New mold after recent rain
- Small patches under 10 square feet
- Musty odors without visible source
- Signs requiring air quality testing

🌡️ Montreal’s Unique Mold Challenges
🌸 Spring Thaw (March-April)
Foundation flooding from snow melt creates basement mold. Quebec’s freeze-thaw cycles cause significant moisture infiltration through foundations and basement walls.
☀️ Summer Humidity (June-August)
High moisture levels trigger bathroom and basement growth. Montreal’s humid summers create perfect conditions for rapid spore reproduction in poorly ventilated areas.
❄️ Winter Condensation (December-February)
Heating systems create attic condensation and ice dam leaks. Temperature differences between heated interiors and cold roofs cause moisture accumulation.
🏛️ Heritage Buildings
Older Montreal properties lack modern moisture barriers, making them vulnerable to hidden mold growth behind original plaster and stone foundations.
❓ Common Questions About Emergency Mold Removal
Small projects (under 50 sq ft): $500-$1,500
Medium areas (50-300 sq ft): $1,500-$3,000
Large infestations: $3,000-$5,000+
Inspection fees ($300-$800) often apply toward remediation with same company. Quebec’s Régie du logement may require landlords to cover costs for rental properties.
You can remove small patches under 10 square feet yourself with proper safety gear (N95 mask, gloves, eye protection). Clean with soap and water, then dry completely.
Call professionals for:
- Mold larger than 10 square feet
- Black mold (potentially toxic)
- Mold in HVAC systems
- Hidden mold behind walls
- When health symptoms appear
Professional removal costs less than health problems or structural damage from DIY mistakes.
Quebec home insurance covers mold from sudden, accidental events like burst pipes or roof damage. Policies typically exclude mold from poor maintenance, humidity, or slow leaks.
Insurance rarely covers mold from:
- Foundation seepage
- Bathroom ventilation issues
- Neglected repairs
- Normal wear and tear
Always report water damage within 24 hours. Document everything with photos. Get professional inspection reports. This documentation supports claims even when insurers initially deny coverage.
Small areas: 1-2 days
Medium projects: 3-5 days
Large infestations: 1-2 weeks
Timeline depends on contamination extent, affected rooms, materials involved (drywall vs. concrete), drying time needed, and reconstruction requirements.
Emergency service begins within hours, but complete remediation follows normal timelines. You cannot rush mold removal without compromising quality and safety.
Mold Inspection: Testing and assessment only ($300-$800). Inspectors identify mold types, measure spore counts, and recommend solutions. They provide reports for insurance or real estate.
Mold Removal (Remediation): Physical removal of mold and contaminated materials ($500-$5,000+). Includes containment, air scrubbing, cleaning, and prevention measures.
Some companies offer both services. Others specialize in one. Independent inspectors provide unbiased assessments without sales pressure. Full-service companies offer convenient one-stop solutions.
🎯 Making Your Emergency Mold Decision
Choose based on your specific situation and priorities:
Choose Mold Busters If:
- You want proven 19-year track record
- Same-day service during business hours works
- You prefer one company for inspection + removal
- Privacy matters (unmarked vehicles)
- Price-match guarantee important
Choose Mold Inspection If:
- You need fastest response (2-4 hours, 24/7)
- Independent inspection preferred
- Detailed testing and lab work essential
- Real estate transaction deadline urgent
- Second opinion desired
Choose Mold Remediation Service If:
- Eco-friendly solutions priority
- Six certifications matter to you
- Free virtual consultation helpful
- Prevention focus important
- Environmentally conscious approach valued
🚨 Emergency Action Steps
- Stop Water Source: Turn off water if possible
- Document Damage: Take photos and videos immediately
- Call Emergency Service: Use contact numbers provided above
- Isolate Area: Close doors, turn off HVAC to prevent spread
- Move Valuables: Protect belongings from contamination
- Notify Insurance: Report within 24 hours of discovery
Don’t wait for mold to spread. Every hour increases damage and costs. Montreal’s climate accelerates mold growth during spring thaw and summer humidity.
📞 Emergency Contact Information
🥇 Mold Busters Montreal
Phone: 514-667-3696
Website: bustmold.com
Hours: Customer service 24/7
Inspections: 8 AM – 5 PM
🥈 Mold Inspection Montreal
Phone: 514-700-6838
Website: moldinspection.ca
Hours: Emergency service 24/7
🥉 Mold Remediation Service
Phone: 613-707-7606
Website: moldremediationservice.com
Service: Free virtual consultation
📚 Additional Resources for Montreal Homeowners
Learn more about protecting your Montreal home from mold and improving indoor air quality:
Understanding IAQ basics
Benefits of professional testing
Practical improvement tips
Identify threats in your home
Our testing services
Home testing solutions
Service Areas Beyond Montreal
About This Guide: Information verified December 2025. Company details, pricing, and services subject to change. Always confirm current information directly with service providers. This guide provides educational information only and does not constitute professional advice. For emergency situations, contact service providers immediately.
