WETT Certification & Inspections in North Bay | Inspections & Certified Installations
Need WETT certification for your insurance company or a real estate transaction? Planning to install a new stove insert or chimney liner? David Mason holds both WETT Inspector and WETT Installer certifications—the credentials your insurance company recognizes. Every installation we complete includes full WETT certification.
Family-owned since 1981
Commercial-grade extraction system triple filtered with 99.9% dust/debris extraction
David Mason is a WETT-certified inspector in the North Bay region.
+ WSIB registered — Your property is fully protected
Your home stays cleaner than we found it
What Is WETT Certification and Why Does It Matter?
WETT stands for Wood Energy Technology Transfer. It’s the nationally recognized certification program for professionals who inspect, install, and maintain wood-burning appliances in Canada.
Why It Matters to You:
Your insurance company likely requires WETT certification for any wood-burning appliance in your home. Without proper certification, your coverage could be at risk—or your claim could be denied if a fire occurs. WETT inspection reports are the only documentation most insurance companies in Ontario will accept.
Two Types of WETT Certification:
WETT Inspector Certification
Allows a technician to inspect existing wood-burning systems and provide official documentation for insurance companies, real estate transactions, and safety verification.
WETT Installer Certification
Allows a technician to install new wood-burning appliances and chimney components with full certification—ensuring the installation meets all safety codes and insurance requirements from day one.
David Mason holds both certifications, meaning we can inspect your existing system OR install new equipment with complete WETT documentation.
WETT Inspections for Insurance & Real Estate
A WETT inspection is a comprehensive assessment of your wood-burning system—including the appliance, chimney connector, chimney, and all clearances to combustibles. The inspection follows strict WETT standards and results in official documentation your insurance company will accept.
When You Need a WETT Inspection
Insurance requirement — Your insurance company requires certification for coverageBuying a home — You're purchasing a property with wood-burning appliancesSelling a home — The buyer's lender or insurance requires inspectionCottage conversion — Converting seasonal property to year-round residencePolicy renewal — Your insurance company requests updated documentationPrevious inspection expired — Most insurers require inspection every 3-5 yearsSafety concerns — You've noticed smoke, odors, or performance issues
The Mason Solution:
Wood stove, fireplace, or insert condition and installationChimney connector (stovepipe) condition and clearancesChimney structure, liner condition, and capClearances to combustible materials throughoutFloor protection adequacyAir supply requirementsOverall code compliance
Your WETT Inspection Report:
You receive a comprehensive inspection report—delivered on-site or electronically within 24 hours. The report is formatted for direct insurance submission and includes detailed findings, photos, and any recommendations for bringing your system into compliance.
What to Expect During Your WETT Inspection
Step 1: Documentation Review (10 minutes)
We review any existing documentation you have and discuss your specific requirements—whether for insurance, real estate, or personal peace of mind. We explain exactly what the inspection covers and what documentation you’ll receive.
Step 2: Exterior Inspection (15 minutes)
We inspect the chimney exterior, including the cap, crown, flashing, and any visible masonry. We document everything with photos for your report.
Step 3: Interior Inspection (30-45 minutes)
This is the comprehensive assessment. We inspect the firebox, damper, smoke shelf, flue liner, and all components according to WETT standards. We measure clearances to combustibles, verify floor protection, and check air supply requirements. Every detail is documented.
Step 4: Report & Certification (15 minutes)
We walk you through our findings and provide your WETT inspection report. Reports are delivered on-site or electronically within 24 hours—formatted for direct submission to your insurance company. Total inspection time: approximately 60-90 minutes.
Residential & Commercial Chimney Cleaning
Homeowners & Families
Whether you're dealing with allergies, just completed a renovation, or simply haven't had your ducts cleaned in years, we're here to help. Our residential duct cleaning service is designed to improve your indoor air quality and keep your HVAC system running efficiently.
Property Managers & Businesses
We serve commercial properties throughout Northern Ontario, including retail spaces, office buildings, multi-unit residential, and municipal facilities. Fully Insured + WSIB registration provides the coverage your contracts require, and we provide full documentation for every commercial job.
Cottage & Seasonal Property Owners
Opening or closing your cottage? We can coordinate service around your visits. If your cottage has a wood-burning stove or fireplace, we can provide the WETT inspection your insurance company requires.
WETT Certification Services Throughout Northern Ontario
Based in North Bay, we provide WETT inspections and certified installations throughout a 2-hour service radius. Our trucks travel Highway 11 and Highway 17 regularly to serve homeowners across the region.
North Bay & Area:
- North Bay (HQ), Callander, Corbeil, Astorville, Bonfield
- Neighborhoods: Birchaven, Ferris, Pinewood, Airport Hill, Thibeault Terrace
Muskoka Region:
- Huntsville, Bracebridge, Gravenhurst, Burk's Falls, Sundridge, South River, Port Carling
Temiskaming Region:
- New Liskeard, Haileybury, Cobalt, Temiskaming Shores, Englehart
West Nipissing & East:
- Sturgeon Falls, Verner, Mattawa, Cache Bay, Warren, Powassan, Trout Creek
What Makes Us Different
Get a Fast QuoteFully Insured
Full liability coverage + WSIB registered. Your property is protected. Our team is covered. No risk to you.
Upfront Pricing
Please call for your free written estimate. No hidden fees, no bait-and-switch, no surprise upsells. The price we quote is the price you pay.
Commercial-Grade Equipment
Our 5,000 CFM commercial- grade vacuum system is 25-50x more powerful than normal handyman equipment. We extract up to 99.9% of dust & debris—we don't just move it around.
45+ Years of Experience
Family-owned and operating in North Bay since 1981. We've cleaned thousands of homes and businesses throughout Northern Ontario.
WETT Certified
David Mason is a WETT-certified inspector in the North Bay region. If you need certification for insurance or real estate, we're the team to call.
Zero Mess Guarantee
We seal every register and use sealed access points. All debris captured in our commercial-grade vacuum system capturing up to 99.9% of dust and debris. Your home is cleaner when we leave than when we arrived.
Trusted by Your Neighbours
Common Questions About WETT Certification
Q: What is WETT certification?
A: WETT (Wood Energy Technology Transfer) is Canada’s nationally recognized certification program for wood-burning appliance professionals. A WETT inspection is the only certification most insurance companies in Ontario accept for wood stoves, fireplaces, and inserts.
Q: Do I need a WETT inspection?
A: If you have a wood-burning appliance (wood stove, fireplace, or insert), your insurance company likely requires WETT certification. You’ll also need one if you’re buying or selling a home with wood heat, converting a cottage to year-round use, or if your previous inspection is more than 3-5 years old.
Q: How long is a WETT inspection valid?
A: Most insurance companies require WETT inspection every 3-5 years, but policies vary. Check with your insurance provider for their specific requirements. We recommend keeping your inspection current to avoid coverage issues.
Q: Can any chimney sweep do a WETT inspection?
A: No. Only technicians with WETT certification can provide valid inspection reports. Many chimney sweeps can clean your chimney but cannot certify it. David Mason holds WETT Inspector certification, so we can provide the official documentation your insurance company requires.
Q: What happens if my system fails inspection?
A: We’ll explain exactly what issues were found and what’s needed to bring your system into compliance. In many cases, we can address the issues ourselves—whether that’s cleaning, repairs, or installing a new chimney liner. Once corrected, we can re-inspect and certify your system.
Q: How quickly will I receive my inspection report?
A: We provide reports on-site or electronically within 24 hours. Reports are formatted for direct submission to your insurance company.
Q: Do you install wood stoves?
A: We install stove inserts and chimney liners. Every installation we complete includes full WETT certification—you receive the documentation your insurance company requires as part of the installation, not as a separate service.
Q: How long does a WETT inspection take?
A: A typical WETT inspection takes 60-90 minutes, depending on the complexity of your system and accessibility.
You May Also Need
Dryer Vent Cleaning
Unmaintained dryer vents are a serious fire hazard. Lint buildup is the #1 cause of residential dryer fires. While we’re at your home, consider having your dryer vent professionally cleared—it could save your family from disaster.
Chimney Cleaning
Regular chimney cleaning is essential for safe operation. Our WETT-certified technicians remove creosote buildup and inspect your flue for damage. Many customers combine chimney cleaning with their WETT inspection.
Get Your WETT Certification Today
Whether you need an inspection for insurance, a real estate transaction, or a certified installation of a new stove insert or chimney liner—Mason Cleaning Systems has the credentials and experience to help.
When You Call, You Get:
Upfront pricing—no surprises45+ years of experience5,000 CFM commercial vacuum powerZero mess guaranteeFully Insured + WSIB RegisteredThe region's only WETT-certified chimney sweep team
ABOUT the Owner
David Mason, WETT-Certified Inspector & Installer, Serving Northern Ontario Since 1981
At Mason Cleaning Systems Inc., we're not a franchise or a call center—we're a family-owned Northern Ontario company built on one purpose: protecting homes and buildings from fire hazards and poor indoor air quality.
I'm David Mason, and I founded this company in 1981. For more than 45 years, I've worked in attics, crawl spaces, boiler rooms, and rooftops across the Near North. I hold both WETT Inspector and WETT Installer certifications—the credentials your insurance company recognizes for wood-burning appliances. Many companies can sweep a chimney. Very few can legally certify it.
Our trucks roll Highway 11 and Highway 17 every week. When you call, you're not getting a subcontractor—you're getting a local team that's been accountable to this region since 1981, and will be here long after the job is done.