Any Home. Any Season. One System.
Upgrade to a high-efficiency heat pump to heat and cool with one system, reduce energy costs, and get up to $7,500 in rebates.
Off-season pricing means the best deals of the year on high-efficiency air conditioners.
Save Big on Lennox Furnaces — Limited Time!
Get a new high-efficiency Lennox furnace with no payments for up to 6 months. Premium comfort, top-tier performance.
Simple estimates, flexible payments, pro installation, and industry-leading warranties.
Discover our full range of home water filter systems, from chlorine filter water solutions and hard water filters to advanced reverse osmosis (RO) water filters for home use. Whether you need a whole house water filter or a compact under-sink reverse osmosis water filter system, each unit is built for exceptional quality and energy-efficient filtration. Designed for clean, safe, and great-tasting water - perfectly suited to Ontario homes.
High-quality water starts with the right filtration. Whether you're concerned about chlorine, sediment, or harmful contaminants, Go Lime offers advanced water filtration systems that give you cleaner, better-tasting water from every tap. From whole-home systems to under-sink solutions, we make it easy to upgrade your water quality and your peace of mind.
Say goodbye to chlorine taste and unpleasant odours — our filters deliver fresh, great-tasting water every time.
Reduce lead, chemicals, bacteria, and other common contaminants for safer water for your family.
Filtered water helps extend the life of your water heater, dishwasher, and other fixtures by reducing scale and sediment.
Get expert recommendations and fast, professional setup with long-term service and support from the Go Lime team.
Our pricing isn’t a flashy promotional rate - it’s fair and transparent from the start. Over time, there may be minor adjustments to ensure you continue receiving top-notch service. But don’t worry - we’re talking about just a dollar or two per year at most. No surprises, just straightforward savings. Plus, you can purchase the equipment at any time, giving you ultimate savings and flexibility.
With the Go Flex Program, you’re 100% covered—24/7/365—for both parts and labour, including annual maintenance. If you choose to purchase the equipment, you’ll receive the standard manufacturer’s warranty. Start with the Go Flex Program to enjoy all the benefits we offer, and when you’re ready, you can purchase the equipment at your convenience.
Go Lime has been keeping homes comfortable since 2011. With over 150,000 customers across Ontario, we’ve spent more than a decade earning the trust of homeowners just like you. Partnering with trusted names like Enbridge, Home Depot, and Walmart, you can count on the Go Lime team to take care of your family.
Go Flex isn’t a never-ending rental contract. It’s a game-changer: an industry-first flexible 180-month subscription with an anytime purchase option. Here’s how it works: 50% of your monthly payment reduces your purchase price, while the other 50% covers 24/7 service, annual maintenance, and unlimited parts and labour coverage. You get all the perks of ownership without the headaches—and the flexibility to purchase the equipment at any time.
A water filter removes contaminants like chlorine, sediment, bacteria, and heavy metals from your water supply. A water softener, on the other hand, removes minerals like calcium and magnesium that cause hardness. While filters improve water quality and taste, softeners prevent scale buildup in pipes and appliances.
If you notice white spots on dishes, soap not lathering well, or buildup on faucets and showerheads, you likely have hard water.
Water softeners help extend the life of your plumbing, improve water heater efficiency, reduce soap and detergent usage, and leave your skin and hair feeling softer after showers.
No, softeners only target hardness minerals. If you're concerned about chlorine, lead, bacteria, or other contaminants, you’ll need a filtration system. In many homes, a softener and whole-house filter are installed together for complete protection.
Yes, both systems require regular care. Filters should be replaced according to the manufacturer's guidelines typically every 3 to 12 months. Softeners need salt refills and occasional cleaning of the brine tank.
While some systems are DIY-friendly, professional installation ensures proper setup, especially for whole-home systems that connect to your main water line. We offer expert installation to ensure long-term performance and warranty protection.
Absolutely. In fact, combining both gives you complete protection - soft, scale-free water plus clean, filtered water for drinking, cooking, and bathing. Many homeowners install both for full home water treatment.
Proudly serving GTA homeowners with trusted service, extended maintenance, and real local support.
Know your total cost before installation. No hidden fees just honest, transparent quotes.
You’ll always speak directly with a licensed HVAC expert never a call center or salesperson.
Same-day or next-day installs by certified technicians, done right the first time.
Upgrade your system with affordable monthly plans — no large upfront payment required.
Fast, Honest Repairs You Can Trust.
When your system needs attention, 4Most Energy is just a call away.
Our licensed technicians diagnose the issue, explain it clearly, and give you a transparent cost before any work begins
No hidden fees or upselling
We repair, not replace unless necessary
Servicing water heaters, tankless units, and boilers
Extend Your Protection. Enjoy Peace of Mind.
Add extra coverage beyond your standard installation warranty.
With our Extended Labour Warranty, all service and labour costs are covered — so you stay protected from unexpected expenses for years to come.
Coverage for installation and labour
Zero repair costs during warranty period
Optional multi-year protection plans available
Backed by certified 4Most Energy technicians
Every order supports reforestation. For each purchase made, we plant a tree because real change starts with simple actions. Place an order, and we’ll plant a tree on your behalf.
To receive assistance, please complete the form, and our dedicated team will assist you every step of the way.
kip the call centers connect directly with a certified HVAC pro for honest answers.
We’re proudly serving homes across the GTA fast response, trusted results.
Spread your cost with flexible monthly plans no surprises, just simple comfort.
Invite friends or family when they book with us, you’ll both benefit.
Off-season pricing means the best deals of the year on high-efficiency air conditioners.
Save Big on Lennox Furnaces — Limited Time!
Get a new high-efficiency Lennox furnace with no payments for up to 6 months. Premium comfort, top-tier performance.
Simple estimates, flexible payments, pro installation, and industry-leading warranties.