Mold removal, mould remediation and testing for Guelph, Fergus, Elora & Wellington County. Free estimates — no obligation.
Get a Free Quote 📞 Call NowFrom routine maintenance to complete installations, we deliver reliable mold removal solutions across Guelph and surrounding communities.
We locate hidden mold behind drywall, in attics, and under flooring using moisture meters and thermal imaging.
Complete containment, removal, and antimicrobial treatment. We leave the space safe and clean.
Guelph's #1 call. Caused by bathroom fans venting into attics — we fix the source and remove the mold.
Wet basements breed mold fast. We remediate and recommend waterproofing solutions to prevent recurrence.
HEPA-grade spore counts before and after remediation. Suitable for insurance claims and home sales.
Detailed inspection reports, remediation protocols, and clearance certificates accepted by major insurers.
On-site assessments with zero obligation
Sealed work areas and HEPA filtration
One dedicated remediation crew for the Guelph area
Written reports for your records
Mold in a Guelph home is more common than most homeowners realize, and more serious than most assume. It is not a cosmetic problem you can clean with bleach and move on. Mold is a structural and health issue that expands — slowly, silently, behind drywall and above ceilings — until the moisture source is addressed and contaminated materials are properly removed.
Attic mold is our most frequent call, and the cause is almost always the same: a bathroom exhaust fan or kitchen range hood venting into the attic rather than outside. Warm, humid air condenses on the cold roof deck through Guelph winters, and mold follows within months. Many Guelph homes built before 1990 have this exact setup — the fan was connected but the duct was never extended through the roof. The fix requires two steps: correcting the ventilation, then removing the affected wood. Treating attic mold without fixing the source guarantees it returns.
Basement mold follows Guelph's older housing stock. Homes in The Ward, downtown, and Exhibition Park neighbourhoods often have poured concrete or block foundations that allow groundwater seepage. Finished basements trap moisture against walls. By the time mold is visible on drywall, it has typically been growing on the back side for months.
Industry-standard remediation (IICRC S520) requires physical containment of the work area with negative air pressure and HEPA filtration to prevent spore spread during removal. Affected materials are removed — not treated. Post-remediation clearance testing (air samples sent to an accredited lab) provides documented proof that spore counts have returned to normal background levels.
We provide complete documentation: inspection report, remediation protocol, and post-clearance air quality certificate. When your insurer adjuster or real estate lawyer asks for proof, you have it. We work directly with insurance adjusters on water-damage-related mold claims.
We serve Guelph, Fergus, Elora, Rockwood, Erin, Acton, Puslinch, Cambridge, and Wellington County.
Get a Free QuoteWe're a local Guelph business. We know the neighbourhoods, the weather, and what Guelph homeowners and businesses need.
We serve: Guelph, Fergus, Elora, Rockwood, Erin, Acton, Puslinch, Cambridge and surrounding Wellington County communities.
Every photo is a real remediation job completed by our team in Guelph and Wellington County.
Answers to the questions Guelph homeowners ask us most.
Small contained areas (under 10 sq ft) typically cost $500–$1,500. Attic mold remediation (the most common job in Guelph) runs $2,500–$6,000 depending on the size of the attic and extent of affected wood. Basement or crawlspace remediation varies widely — $1,500–$8,000+. We provide detailed written quotes after inspection.
It depends on the cause and your policy. Sudden water damage (burst pipe, roof breach) is often covered. Mold resulting from long-term moisture accumulation or maintenance issues is typically not. We provide insurance-grade documentation that helps make the strongest possible claim.
Surface mold on non-porous materials (tile, metal) under 10 sq ft can be cleaned by homeowners. Any mold on porous materials (drywall, wood, insulation), any attic or crawlspace mold, or any area over 10 sq ft should be handled by a certified professional to prevent cross-contamination.
Small jobs take 1 day. Attic remediation typically takes 1–2 days. Larger projects involving demolition and rebuild can take a week or more. Post-remediation clearance testing adds 2–5 business days for lab results.
The most common causes are bathroom fans venting into attics, roof leaks, plumbing leaks, basement seepage, and poor foundation drainage. Guelph's humid summers and freeze-thaw winters create ideal conditions in any inadequately ventilated space.
Yes — our post-remediation clearance certificate is suitable for real estate transactions. If you're selling a home where mold was remediated, buyers' lawyers will want to see proof of professional remediation and lab-verified clearance.
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