Business Details
Emergency
services
Expert HVAC Solutions in Toronto, ON
Keystone Mechanical Group has been delivering comprehensive HVAC solutions to residential, commercial, and industrial clients across the Greater Toronto Area for over 25 years. Founded with a commitment to excellence, we expanded our expertise in 2010 by introducing a dedicated fireplace division, becoming a one-stop shop for heating and ventilation needs. Our team of certified technicians combines extensive industry experience with a client-centric approach, offering services ranging from furnace installation and air conditioning repair to preventive maintenance and emergency response. We pride ourselves on using cutting-edge technology and high-quality materials to ensure optimal system performance and customer satisfaction.With a focus on transparency and professionalism, we serve communities including Toronto, Mississauga, Brampton, Oakville, and beyond, maintaining a reputation for reliability and technical expertise. Our partnerships with leading manufacturers and distributors enable us to provide top-tier products backed by industry-leading warranties. From residential HVAC upgrades to large-scale commercial projects, we prioritize clear communication, timely execution, and meticulous attention to detail in every service we deliver.
Services
HVAC Installation
Furnace Repair
Air Conditioning
Ventilation Systems
Preventive Maintenance
Fireplace Installation
Highlights and features
- 25+ years of HVAC industry experience
- Comprehensive residential and commercial service offerings
- Emergency response available 7 days a week
- Factory-certified technicians with specialized training
- Competitive pricing with transparent estimates
What people say
Professional manner
Promptly with quote
Competence
No damage during installation
Reasonable cost
Services
HVAC Installation
Keystone Mechanical Group provides complete HVAC system installations for residential and commercial properties. Our certified technicians ensure proper sizing, efficient operation, and compliance with local building codes. We work with major manufacturers to offer energy-efficient heating and cooling solutions tailored to your property's specific requirements while maintaining minimal disruption to your living or working environment.
Furnace Repair
Our emergency furnace repair service addresses heating system failures promptly across the GTA. Technicians diagnose issues with gas, electric, and hybrid systems using advanced diagnostic tools. We maintain a comprehensive inventory of replacement parts for quick repairs while providing transparent pricing and detailed explanations of required maintenance to prevent future breakdowns.
Air Conditioning
We offer central air conditioning installation, ductless mini-split systems, and commercial cooling solutions. Our team performs comprehensive load calculations to determine optimal system capacity. Services include routine maintenance, refrigerant charging, and emergency repairs with same-day service availability during peak summer months to ensure continuous comfort for residential and business clients.
Ventilation Systems
Our ventilation services include duct design, installation, and repair for residential and commercial buildings. We specialize in energy recovery ventilators and commercial HVAC airflow optimization. Technicians address issues with indoor air quality through comprehensive system evaluations and implement solutions that improve circulation while maintaining energy efficiency standards.
Preventive Maintenance
Scheduled maintenance plans help extend equipment lifespan and maintain manufacturer warranties. Our technicians perform comprehensive inspections, lubricate moving parts, check refrigerant levels, and clean components. We provide detailed service reports and recommendations for system improvements while ensuring optimal performance and energy efficiency for both residential and commercial HVAC systems.
People
Nando Giammaria
HVAC Contractor
With extensive industry experience, Nando leads technical operations and client consultations. He oversees system installations and complex repairs while maintaining direct client communication throughout project timelines.
Theresa
Office Manager
Theresa coordinates service scheduling and client communications, ensuring smooth project execution. She maintains organizational efficiency while providing professional support to both clients and field technicians.
Questions
What HVAC services does Keystone Mechanical Group offer?
We provide furnace installation/repair, air conditioning systems, ventilation solutions, preventive maintenance, and fireplace installations for residential and commercial properties.
Do you offer emergency HVAC services?
Yes, we provide 7-day emergency response for urgent heating and cooling system failures across the GTA.
Which areas do you service?
We serve Toronto, Mississauga, Brampton, Oakville, Burlington, Milton, Vaughan, and all surrounding GTA communities.
Are your technicians certified?
All our HVAC technicians hold factory certifications and undergo continuous training with major industry manufacturers.
Can you install both traditional and modern fireplaces?
Our fireplace division specializes in contemporary and traditional gas/electric fireplace installations with custom venting solutions.
