For long-term cooling performance in the Greater Toronto Area, Lennox remains one of the most trusted and reliable air conditioner brands. Their systems are extremely efficient, quiet, and engineered for strong durability during hot Ontario summers. Lennox ACs use advanced compressors, high-efficiency coils, and industry-leading energy ratings, making them ideal for homeowners who want long-lasting comfort and lower hydro bills.

Goodman AC units offer some of the best value in the industry. They’re built with Japanese-inspired technology, service-friendly components, and excellent parts availability across the GTA. Goodman’s strong 10-year parts warranty and proven reliability make it a top choice for homeowners seeking performance and affordability without premium pricing.

Yes. York offers reliable air conditioners at a lower cost compared to premium models. Their systems deliver steady cooling performance and are often paired with flexible financing programs, making them a great match for homeowners looking for cost-effective solutions without compromising comfort.

AC warranties vary by brand:

• Lennox: Up to 10-year parts warranty, plus optional extended protection

• Goodman: 10-year parts + excellent compressor warranty

• York: Solid parts and compressor coverage with upgradeable options

All installations from 4Most Energy include our 1-Year Labour Warranty, with the option to extend labour coverage for up to 10 years.

An extended warranty gives homeowners additional labour and/or parts coverage after the standard manufacturer warranty. Because cooling systems run heavily during hot GTA summers, extended warranties offer long-term security and protection against unexpected repair costs.

At 4Most Energy, AC installation is fully transparent and includes everything required for a proper setup. We remove your old unit, place the new condenser, install a new coil if needed, run proper line sets, adjust electrical connections, test refrigerant levels, and ensure the entire cooling system operates at peak performance. We protect your home during installation and guarantee no hidden fees—the price we quote is the price you pay.

Getting an AC estimate is simple. You can contact our cooling expert and send a few photos or share basic information about your current system. We prepare an official estimate within minutes, and if needed, we schedule a site visit to confirm the details and ensure a smooth, surprise-free installation.

We accept credit cards, debit, e-transfer, and offer financing options ranging from 3 to 60 months. York and Goodman cooling systems often come with great promotional financing programs, making upgrades more accessible. Every estimate includes our 4Most Energy Best Price Guarantee.

Yes. Annual maintenance is essential to keep your AC running efficiently, reduce energy consumption, and extend the life of the system. GTA summers are warm and humid, so regular cleaning of coils, refrigerant checks, and airflow assessments help prevent breakdowns and keep your AC performing at its best. Filters should also be replaced every 1–3 months when cooling is in use.

You are protected by our 30-day customer satisfaction guarantee. If you’re not fully satisfied with your cooling system, we will make it right immediately. If the issue cannot be resolved, we will remove the unit and follow our return policy to ensure complete peace of mind.

Yes. 4Most Energy provides fast, same-day service for AC breakdowns during hot weather. We serve all areas in the GTA, including Toronto, Richmond Hill, Vaughan, Markham, North York, Mississauga, Brampton, and more. Homes with no cooling during heatwaves are always prioritized.