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Mold Remediation in Mississauga

Mold Remediation in Ontario

Mold remediation is the process of finding the source of moisture, containing the affected area, removing contaminated material (drywall, insulation, flooring), cleaning surfaces that can be salvaged, and drying the space so mold doesn't come back. It's different from a basic cleaning job: a proper remediation crew treats the cause (a leaky pipe, a damp crawlspace, poor bathroom ventilation, past flood damage) rather than just wiping visible spots off a wall. In a city like Mississauga, where finished basements are common and many homes back onto ravines or sit close to the water table, mold tied to basement moisture and past water damage events is one of the most frequent calls this category gets.

When comparing companies, look for containment practices (poly sheeting, negative air pressure), use of HEPA filtration and air scrubbers, moisture meters and thermal imaging to confirm the source is actually fixed, and clear documentation you can hand to an insurer. Ask whether they test air quality before and after, and whether they carry their own IICRC-style training rather than subcontracting the technical work out.

Our rankings score the 41 businesses listed here on factors like response time, transparency of estimates, equipment used, and verified customer feedback. See the full ranked guide to water damage restoration services in Mississauga for our top picks, and read our methodology for how we score and rank every company in this directory.

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All mold remediation in Mississauga, ranked by score and relevance

40 businesses, scored on recent reviews. The order weighs each business's overall score by how much of its reviewed work is mold remediation, so a lower-scored specialist can rank above a higher-scored generalist.

GTA Mold Removal Mississauga
5.0(186)✓ Google-verified

The team and the team lead a team that consistently delivers mold removal on time and leaves homes spotless. Reviewers highlight their honesty, detailed explanations of every step, and willingness to walk through properties identifying future risks. The business handles basement mold, attic mold, and bathroom mold removal with careful containment and air scrubbers. Staff provide free inspections, transparent quotes that match final invoices, and follow-up advice on secondary damage other contractors should address.

Aquamaster Basement Waterproofing Mississauga
5.0(129)✓ Google-verifiedPublishes prices

Every review on record is five stars. Across 19 recent reviews, water stops flowing into basements after their work. Staff explain the solution step by step, show up when promised, keep sites clean, and fix problems that other attempts left unsolved. Several reviewers highlight quick estimates and honest assessments that avoided unnecessary upgrades. The company offers interior and exterior waterproofing, foundation crack repair, sump pump installation and repair, drainage systems, and leak detection across Mississauga and surrounding areas. Their website lists prices from $30 to $100 per linear foot for drainage work and $500 to $1,500 for basement leak repairs.

Waterproof Basement Mississauga
5.0(52)✓ Google-verifiedPublishes prices

Reviewers consistently report that water problems disappear after work and stay fixed through heavy rain and multiple seasons. The team diagnoses the root cause first, explains what needs doing, and executes both interior and exterior solutions with care. Drainage systems, sump pumps, and sealed foundations perform reliably months later. Work finishes on time and the sites stay clean. Specialized services include full excavation, membrane installation, weeping tile replacement, crack sealing, interior drainage with sump basins, and wall rebuilding. Multiple named technicians handle complex foundation problems with professionalism. The business's website claims over 15 years in operation and lists service across the greater Toronto area, though Mississauga and surrounding towns dominate the reviews.

CPR24 Restoration of Mississauga
5.0(82)✓ Google-verified

CPR24 gets consistent praise for arriving fast when basements flood or pipes burst, answering calls immediately and tackling the mess with professional equipment and clear explanations at each step. Staff handle complex jobs like category 3 sewage backups with proper containment, antimicrobial treatment, and HEPA filtration, coordinate directly with insurance adjusters to cut through paperwork, and keep pricing transparent throughout.

Serve Kings Water & Flood Restoration of Oakville
5.0(64)✓ Google-verified

From a burst pipe to mold in the bedroom, customers across the GTA report same-day or next-day arrivals and repairs completed without fuss. The team walks property owners through insurance claims and leaves work areas spotless; several reviewers noted the honesty about what work was needed and pricing upfront. Staff including the team, the team, and the team are named repeatedly for their professionalism during water restoration, mold removal, and follow-up renovations. Customers praise the combination of quick drying setup, polite communication, and high-quality finishing work that turns a stressful water event into a smooth, managed process.

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ServiceMaster Restore of Mississauga
4.8(99)✓ Google-verified

Residents and commercial clients consistently report arriving crews within half an hour, staff who explain work clearly and update daily, and finished jobs that leave homes clean and dry. The team handles basement floods, pipe bursts, smoke damage, and odour control across multi-floor water intrusions; staff manage insurance paperwork, take measurements, and coordinate trades so the claim process is straightforward.

Servpro of Southwest Mississauga, Erin Mills
5.0(27)✓ Google-verified

Staff deliver fast, clear communication from first contact through project completion. Photos and daily updates keep owners informed; quotes are transparent and arrival times swift. Work spans mold removal, water damage, odor elimination, and deep cleaning, with particular strength in handling complex situations remotely or under urgent timelines. The team consistently earns trust through honest advice rather than overselling scope.

FIRST ONSITE Property Restoration
4.3(106)✓ Google-verified

Residents consistently report that First Onsite arrives fast and guides them calmly through stressful floods and fire damage. Staff coordinate seamlessly with insurers and follow through with quality work, from initial assessment to final cleanup. The team handles multi-level restoration, condo floods, break-ins, and fire remediation across the Mississauga-Brampton area. The team managers stay in close contact and respect homes throughout; crew leaders and tradespeople earn repeated praise for finishing on time and caring for families during crisis.

Serve Kings Mold & Water Restoration of Mississauga
5.0(18)✓ Google-verified

Every call brought a crew within an hour, usually faster. They explain what they're doing in plain language, identify the root cause (cracked foundation, faulty appliance hose), and work with insurance companies to cover costs. Basements, kitchens, bathrooms: water damage across all rooms gets the same methodical drying and restoration. Mold cleanup earns equal praise. No complaints surface across 18 five-star reviews. Staff remember details and follow through. Named technicians (the team, the team, the team) appear in multiple reviews as the steady hands who answer calls, do inspections, and supervise the larger teams. Customers feel heard and cared for in stressful moments. The phrase "magic job" and repeated thanks speak to relief more than polish.

ONT Restoration
4.7(74)✓ Google-verified

When water or fire damage strikes, ONT Restoration typically responds within hours and handles mitigation with care. Reviewers consistently praise the speed of initial assessment, the professionalism of named technicians, and the thorough drying setup on-site. A small number report difficulty reaching the company initially, though most who connect say the team guides them through the repair and insurance process clearly.

Rainbow Restoration of Mississauga
5.0(31)✓ Google-verified

Five-star reviews across two years show consistent speed and professionalism. Reviewers praise the team's responsiveness to emergencies, clear pricing, careful handling of sensitive items, and ability to guide insurance claims. Work spans basement flooding, sewage cleanup, mold removal, and finishing touches like painting and flooring; customers note jobs completed on or ahead of schedule with thorough cleanup afterward.

HV Restoration
5.0(9)✓ Google-verified

All seven reviews describe fast emergency response, complete water extraction and drying, and staff who explain work clearly at every step. Insurance claim assistance stands out: the team documents everything, manages paperwork, and communicates directly with adjusters, taking stress off homeowners during restoration.

247-Restoration Corp.
4.5(23)✓ Google-verified

Reviewers consistently report fast response, professional work, and clear explanations from the crew. The business handles mold removal, water damage, sewage backup, and emergency repairs; multiple reviewers mention staff assistance with insurance claims and same-day availability.

Leda Restoration & General Contracting
4.6(39)✓ Google-verified

Across 17 reviews, customers consistently report fast dispatch, clear communication, and professional execution on water damage, fire restoration, and reconstruction work. Staff handle insurance processes, clean up after themselves, and follow through on commitments with no negative patterns evident.

Eco Star Restoration
4.7(12)✓ Google-verified

Ten consecutive five-star reviews praise speed, professionalism, and quality across water damage, mold removal, and emergency work. Repeat customers cite fair pricing and a team that delivers on restoration and repairs without cutting corners.

Ontario Restoration Squad
5.0(7)✓ Google-verified

The team consistently arrives quickly for emergencies, removes standing water, and explains each step without surprises. Reviewers note responsiveness is their strongest asset, with one office flood resolved in 47 minutes, and thorough drying that leaves basements properly restored.

Instant Restoration 24/7
5.0(12)✓ Google-verified

When floods or fires strike, Instant Restoration answers fast and takes charge. All 12 reviews are five-star; customers highlight 45-minute emergency arrivals, hands-on insurance negotiation, meticulous drying work, and a team (notably the team) who walk distressed homeowners through every step from damage control through rebuild, leaving homes spotless and stress nearly gone.

TRUFORCE LTD.
5.0(8)✓ Google-verified

All eight reviews are five-star, with customers praising the team for handling water damage, mold, and bathroom restoration with professionalism and care. The business stands out for combining emergency mitigation with high-quality finish work, keeping clients informed, and documenting claims for insurance purposes. Notable strengths include thorough drying, detailed attention to preventing further damage, and clean, efficient execution. Reviewers highlight transparency on cost and timeline, making TruForce a trusted choice for basement floods, bathroom leaks, and mold remediation across Mississauga and the GTA.

PLUMBER ON DEMAND of MISSISSAUGA, ON
4.2(472)✓ Google-verified

Reviewers consistently report quick arrival times, courteous technicians, and transparent pricing on plumbing repairs. One complainant disputed a $452 diagnostic fee and questioned review authenticity. The tension between overwhelming five-star feedback and specific fee allegations merits caution.

BELFOR Property Restoration
4.5(29)✓ Google-verified

Most reviewers praise punctual, thorough flood and water restoration work, often singling out attentive project managers who kept them informed and involved. Two separate complaints detail reckless driving by staff vehicles on public roads.

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Paul Davis Mississauga
4.2(65)✓ Google-verified

Most customers report rapid initial response and skilled technicians who communicate clearly and work with insurers smoothly. Several praise completion on schedule and professional results. However, one detailed complaint notes months-long delays between phases, unannounced visits, and subcontractors who caused additional damage and lack of professionalism, though the Paul Davis core team was described as solid.

Dependable Restoration

#22Dependable Restoration

70 low data
5.0(3)✓ Google-verifiedPublishes prices

All three reviews reflect quick response, on-time arrival, and smooth handling of water and mold damage. Reviewers credit friendly staff, transparent pricing, and professional work across burst pipes, basement seepage, and leakage-related mold.

A&O Contracting Inc.

#23A&O Contracting Inc.

67 low data
4.7(14)✓ Google-verified

Most work is handled well and stays on budget, though one old complaint raises a red flag about severe delays and contractor payment issues. Mold remediation and flood work specifically praised for containment and swift response.

EMRG (Elite Mitigation & Restoration Group)
4.0(4)✓ Google-verified

Three recent reviews praise EMRG's speed and professional handling of fire and water damage incidents, with staff responding within hours and guiding clients through mitigation without stress. An older billing complaint from four years ago describes ongoing charges to a deceased member's account despite notice, raising concerns about administrative practices.

Select Restoration Services
5.0(12)✓ Google-verified

All 11 reviews rate Select Restoration at five stars. Reviewers consistently praise rapid response, especially for weekend and after-hours calls, and note staff handled everything from initial assessment through insurance coordination and finishing work. Work was thorough: one reviewer described a technician identifying a water leak source and completing repairs promptly, another reported commercial roof damage resolved with daily photo progress reports.

Touch With Care | 24/7 Restoration in Mississauga
5.0(4)✓ Google-verified

Over five years of consistent use by one reviewer and quick emergency response across all accounts point to reliable, efficient service in the Mississauga area. Team meets diverse requests, completes jobs on schedule, and maintains professional conduct throughout.

DKI - Al-Care

#27DKI - Al-Care

60 low data
5.0(1)✓ Google-verified

One customer praised the team's quick arrival and hands-on project management, noting the restored flooring and doors exceeded their expectations.

ServiceMaster Restore of Toronto East
4.0(11)✓ Google-verifiedPublishes prices

Praised for rapid large-scale water damage response with professional coordination, but a minority of reviewers report missed appointments and poor contractor quality on some jobs.

Emergency Flood Response

#29Emergency Flood Response

59 low data
5.0(4)✓ Google-verified

All four reviews are five stars. Reviewers praise fast arrival, thorough water extraction, and polite staff who explain each step. Insurance billing direct to company noted as helpful during stressful situations.

PuroClean Canada

#30PuroClean Canada

56 low data
3.7(15)✓ Google-verified

Five recent one-star reviews report serious issues: delayed follow-up from staff, billing disputes, subcontractor damage to property and possessions, and conflicts with insurance company. Older five-star reviews praise quick response and quality work, but the weight of recent complaints about honesty and accountability creates substantial concern. Service quality appears inconsistent across branches and hinges on which technician shows up.

On Side Restoration Services
3.0(39)✓ Google-verified

Five-star reviewers praise the the team team as professional, efficient, and communicative during possession recovery and packing. One reviewer named the team specifically for reliable timelines and partnership. One-star complaints centre on three patterns: fleet drivers described as aggressive and dangerous on roads (multiple incidents documented with van numbers and license plates), incomplete restoration work (one job unfinished after a year), and belongings returned damaged or missing with only $300 offered against $19,000 in insurance billing. Site cleanup and accountability remain unresolved issues across multiple reviews.

Mississauga Restoration Pros
5.0(2)✓ Google-verified

Two five-star reviews from nine years ago praise the team for rapid response and skilled emergency work. Review detail is limited; current performance is unclear.

Tormenta Restoration

#33Tormenta Restoration

54 low data
4.2(5)✓ Google-verified

One older review praises swift emergency response and smooth insurance coordination; a more recent account reports dissatisfaction with service scope, equipment deployment, and a $11,000 bill that included charges for a bin never supplied. Evidence is limited across both reviews.

MLY Group

#34MLY Group

51 low data
3.7(3)✓ Google-verified

Not enough recent reviews yet to synthesise a reliable sentiment read for this business.

FIRST ONSITE Property Restoration
1.0(2)✓ Google-verified

Review evidence is limited: only 2 Google ratings are available, both one or two stars, with no review text. The business's website claims broad services across water damage, fire, mold, and emergency response for Mississauga and surrounding areas. No concrete service experience can be assessed from these inputs.

Absolute Mold Remediation Ltd.
No rating yet✓ Google-verified

Absolute Mold Remediation Ltd. operates in Mississauga and surrounding areas, offering mold removal, inspection, and air quality testing. Review evidence is limited; the business states IICRC certification and serves multiple Ontario communities, but specific customer feedback is not available.

247 mold removal

#37247 mold removal

24 low data
No rating yet✓ Google-verified

Not enough recent reviews yet to synthesise a reliable sentiment read for this business.

Vp homes restoration

#38Vp homes restoration

28 low data
No rating yet✓ Google-verified

No individual reviews are available. VP Homes Restoration operates as a multi-service contractor claiming the team licensing since 2005 and service across the GTA, Waterloo Region, and Hamilton.

noori water works

#40noori water works

21 low data
No rating yet✓ Google-verified

Not enough recent reviews yet to synthesise a reliable sentiment read for this business.

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Common questions about mold remediation

How much does mold remediation cost in Mississauga?
Small, contained jobs (a bathroom corner or a closet) can run a few hundred dollars, while a basement affected by past flooding with drywall and insulation removal often lands in the low thousands. The team depends on square footage, whether structural material needs replacing, and whether containment and air scrubbing equipment are needed for multiple days.
How often does a home need mold remediation?
Most homes never need it if moisture is controlled, but any home that has had a basement flood, a slow plumbing leak, or a roof leak is at risk and should be checked. If a home has had one mold problem tied to a moisture source that keeps recurring, expect to need remediation again unless the underlying leak or humidity issue is actually fixed.
What should I expect during a mold remediation job?
Expect an inspection with a moisture meter, a written scope of work, containment of the work area with plastic sheeting, removal of damaged material, HEPA vacuuming and cleaning of remaining surfaces, and a final check (sometimes with air testing) before they take the containment down. A good company will also tell you what caused the moisture and what you need to fix so it doesn't return.
How can I judge the quality of a mold remediation company?
Check that they explain the moisture source and not just the mold itself, ask to see their containment and air filtration equipment, and get a written scope before work starts rather than a vague quote. Verified reviews mentioning follow-up checks or insurance paperwork help, and it's worth asking directly whether the same crew does both the remediation and the drying, or whether that's subcontracted out.

Last updated 2026-08-12