[ Business And Professional Services > Home Improvement Service > General Contractor|business And Professional Services > Home Improvement Service > Heating, Ventilating And Air Conditioning Contractor|business And Professional Services > Home Improvement Service > Professional Cleaning Service · Toronto, ON ]
Keystone Mechanical Group
Hours
| Monday | 8:00 AM - 4:30 PM |
|---|---|
| Tuesday | 8:00 AM - 4:30 PM |
| Wednesday | 8:00 AM - 4:30 PM |
| Thursday | 8:00 AM - 4:30 PM |
| Friday | 8:00 AM - 4:30 PM |
| Saturday | 9:30 AM - 3:00 PM |
| Sunday | Closed |
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Answers about Keystone Mechanical Group
LAST VERIFIED OCT 6, 2026
Do they handle emergency breakdowns?
[ VERIFIED · OCT 2026 ]Emergency response services are listed as part of the offering, covering heating and cooling failures. Calling is the fastest route when a system goes down.
Is it residential or commercial work?
[ VERIFIED · OCT 2026 ]Both are covered. Residential installs and repairs sit alongside commercial maintenance contracts and industrial systems, plus fireplaces and snow-melt systems.
How do I get a quote?
[ VERIFIED · OCT 2026 ]The contact page is the starting point for arranging a site survey and quote. The office runs weekdays 8 to 4:30 with Saturday mornings.
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