
Chimney, fireplace, pool & water heater experts across the GTA
One call, every job that keeps your home running. Free quote + 12-point Safety Checklist — save $50 this month.
Licensed, certified & fully insured
Our services
One licensed team for chimney, fireplace, water heater, and pool heater work across the GTA.

Chimney Inspection
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Chimney Sweep
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Gas Fireplace Maintenance
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Gas Fireplace Repair
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Pool Heater Repair
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Wood Stove Cleaning
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Tankless Water Heater
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Tank Water Heater
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Crafting safety & quality in every GTA home
Diamond Home Services is a family-owned, GTA-based company founded in 2015. We built the business around a simple idea — homeowners should be able to make one phone call and know a licensed, insured, respectful technician is coming.
Over the last 11+ years we've completed thousands of chimney inspections, fireplace tune-ups, water heater installs, and pool heater repairs across every corner of the Greater Toronto Area. Our technicians are WETT-certified, TSSA-registered, and HRAI-member trained — and every job comes with upfront written pricing, a workmanship warranty, and a real person answering the phone.
What GTA homeowners say
Real reviews from real customers across Toronto, Vaughan, Mississauga, Markham, and the rest of the GTA.
"The technician was punctual, professional, and walked me through every step. The report was detailed with clear photos. Highly recommend."
"Booked a fireplace tune-up. Techs cleaned the burner, checked the venting, adjusted the flame. Friendly, tidy, fair pricing. Will use again."
"Old tank finally died. Diamond installed a new tankless the next morning. Clean work, explained the warranty, hauled the old unit. Great experience."
"Pool heater wouldn't fire. Same-day diagnosis, part replaced within 48 hours. Straightforward pricing and a real person answered the phone."
"Booked a chimney sweep before the season. Techs laid down drop cloths and left the room spotless. Report flagged a cap issue they fixed on the spot."
"First time using them for our wood stove. Careful, knowledgeable, clearly explained creosote levels. Booking online was easy."
"Woke up to no hot water. They arrived within 2 hours, diagnosed the failed heater, and replaced it before dinner. Above and beyond."
"Pilot wouldn't stay lit. Tech identified a bad thermocouple, had the part on the truck, and had us back up in under an hour. Excellent."
Brands we service
Authorized parts and service for 28+ leading fireplace, pool heater, and water heater manufacturers.
Answers to common GTA homeowner questions
Everything you'd ask before booking a chimney, fireplace, water heater, or pool heater service.
Featured cities
All service areas →Serving all 69 GTA cities
Same-day service across every municipality in the Greater Toronto Area.
