Rental Boiler Buyout · GTA

Break Free From Your Rental Boiler

Stop paying monthly rental fees on equipment you will never own. We help you end your Reliance or Enercare rental and install a high-efficiency boiler that is 100% yours.

We handle the switch

Your rental, replaced in 4 moves

Renting vs. owning

Why Keep Paying for a Boiler That Isn’t Yours?

Renting

Owning

1 Year

Free labour from 4Most on any installation issue

5 Years

Manufacturer parts coverage on most boilers

15 Years

Heat exchanger coverage — the most expensive part

5 or 10

Year extended labour warranties available

Who we help

Renting From Reliance or Enercare? You Have Options.

Whether your contract is up or your rented unit has stopped working, you don’t have to sign another rental agreement.

Contract is ending

Skip the renewal and switch to a boiler you own.

Rental unit broke down

Don’t wait on the rental company — replace it with your own unit.

Older Baxi or Flowmax

A good time to move to a modern high-efficiency boiler.

Older Rinnai or Navien

Upgrade to the latest condensing combi or heat-only model.

Rented tank too

A combi boiler can replace both the rented boiler and the rented tank.

Bigger home

A heat-only boiler with an indirect tank handles multiple bathrooms.

Choose your replacement

Own a Boiler Sized for Your Home

Combi Boiler

Heat and on-demand hot water from one compact, wall-hung unit. Ideal if you are also renting a hot water tank.

Larger homes

Heat-Only Boiler

Dedicated to space heating through radiators, baseboards, in-floor heat or an air handler, paired with an indirect hot water tank.

How it works

Your Path From Renting to Owning

Send us your details

Share a photo of your boiler and your rental company. We look at your setup and venting.

Get a clear quote

We recommend the right boiler and give you a straightforward price for your home.

We handle the rental

We coordinate the return of the rented unit and the contract termination with you.

Install & enjoy

Our TSSA-licensed team installs your new boiler and hauls away the old one.

       
 4.9
 4.9
 Top Rated Service
   Verified by Trustindex   Top Rated Service
   4.9 Excellent rating Last 12 months 
  New reviews collected regularly Recent review activity detected 
  Leading Service Google Maps rating and review data 
  Responds to customer reviews 75% response rate within 48 hours 
  Verified by Trustindex Based on real customer reviews Learn more 
 
 
 
 
 
 
 
   
 
 
      Posted on Google  
   
   H Lau 
 5 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 
  
 
     Posted on Google  
   
   Harini 
 11 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0We had a great experience with Rey and his team during our new Rinnai boiler installation. The technicians did an amazing job and worked efficiently. The technician Sam was knowledgeable, professional, and respectful throughout the installation. He took the time to answer all my questions and made sure everything was properly checked before finishing the job.

They arrived on time and completed the boiler installation on schedule.

We are very happy with the service and would definitely recommend them to anyone looking for reliable and professional HVAC service.

Thanks.
  
 
     Posted on Google  
   
   Vip C. 
 11 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0
Excellent service and very reasonable pricing for a new AC installation. The team arrived right on time, provided a smooth and professional installation, and there were absolutely no hidden costs. Communication was transparent, proactive, and consistent throughout the entire process. Highly recommend them to anyone looking for reliable and honest HVAC service.
  
 
     Posted on Google  
   
   kevin liu 
 14 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 
  
 
     Posted on Google  
   
   Brian Johnston 
 16 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +1
I was very pleased with the competitive pricing I got specifically from 4most energy. I contacted many companies to get their best quote. Sometimes there are even daughter or sister companies that will give you better quotes than the parent companies. It's best to check around for the identical product with installation from many companies. I was also pleased with the installers. They did have to cut away some insulation to install the Rinnai RX199 on the outside wall the house. Not sure if they should have tried replacing that insulation afterwards, but won't complain about the job they did because I think I got the best price on the market after getting quotes from about a dozen companies.
  
 
     Posted on Google  
   
   Joseph Spitale 
 31 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0We recently had a Navien Combi boiler installed by 4Most Energy and had a great experience from start to finish. Rey was our sales representative and Sam was our technician, and both were excellent to work with.

They arrived on time, the installation was fast and efficient, and everyone was friendly and professional throughout the process. Sam did a great job with the installation, and everything is working perfectly.

We’re also very happy with the Navien Combi boiler itself. Overall, we couldn’t be happier with the service, the installation, and the product. We would definitely recommend 4Most Energy.
  
 
     Posted on Google  
   
   Da big_Guy 
 32 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0Rey, Ben and Amad thank you very much for the amazing work on my hot water tank purchase and installation. You a have a loyal customer fir life. I will make sure my family and friends use your service.
Zoran.
  
 
     Posted on Google  
   
   Marvin Harrison 
 34 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +2
I contacted 4Most Energy to replace my 14 year old AC unit. Their intake process was smooth. They provided a reasonable quote the same day. The installation of the new AC unit was scheduled and the service provided by Farzad and his associate was completed within a reasonable time. They did a great job on the installation, hauled away the old equipment, and left the job site (both indoors and outdoors) in good condition. I would not hesitate to recommend 4Most Energy for your heating and cooling needs.
  
 
     Posted on Google  
   
   Rodney BROWN 
 34 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0
Scheduling was quick and easy. The team showed up on time, were quick and efficient and did an overall good job!
  
 
     Posted on Google  
   
   Jag Jasani 
 35 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0
Great job Rey, Sam and team! My tankless water heater was broken for two months and after getting the run around from Enercare and Reliance, I decided on purchasing a Navien from 4Most Energy and they did a great job explaining the process and installing it the next day. Thank you for the top notch service!
  
 
     Posted on Google  
   
   Maryam Badakhshi 
 42 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Hamid installed a new heater for us. We had a great experience. He and the team were professional and the work was done in a day. We really appreciate their promptness. We’d definitely recommend Hamid.
  
 
     Posted on Google  
   
   Chris Luc 
 45 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Great job by Hamid. Thanks
  
 
     Posted on Google  
   
   Adrian Cann 
 47 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Great service, great price, great technicians, big job but the work was executed with perfection!!!
  
 
     Posted on Google  
   
   Charles Hawkes 
 51 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Arrived promptly, installed new water heater in a professional manner, checked the installation for any gas or water leaks, cleaned up the work site. Very satisfied with the service and pricing. Strongly recommend 4MostEnergy.
  
 
     Posted on Google  
   
   Adriana 
 51 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We had a great experience with this company when they installed our new water heater. The work was completed quickly, professionally, and with great attention to detail. We especially appreciated that they put down carpets to protect our floors and kept everything clean throughout the installation.

The team was courteous, efficient, and clearly took pride in their work. We would definitely recommend them to anyone looking for reliable and professional service!

Rental Boiler Questions, Answered

Straight answers about leaving a rental boiler and owning your own.

Can I get out of my Reliance or Enercare rental?

Yes. If your rental contract is up, or the rented unit has stopped working and you don't want to sign a new contract, we coordinate the return and the contract termination, then install a combi boiler you own. It's a good replacement for Baxi, Flowmax, and older Rinnai and Navien models.

Will I have to pay a buyout fee?

That depends on your rental agreement. Some contracts include buyout or removal charges, especially on newer units. Send us a photo of your contract and we’ll help you understand your options before you commit.

What happens to the rented boiler?

We coordinate the return of the rented equipment with your rental company, so you don’t have to deal with it on your own.

Should I choose a combi or a heat-only boiler?

If you also rent a hot water tank, or your home has one to three bathrooms, a combi boiler usually makes the most sense. Larger homes with several bathrooms in use at once are often better served by a heat-only boiler with an indirect hot water tank.

What maintenance does a boiler need?

Very little. These units are solid and usually last 15 to 20 years, and they hardly need major service before the 15-year mark. A yearly clean and tune-up is ideal, and our maintenance plans start from $12.99. Without a plan, have a certified technician check the unit at least every 5 years.

How does the warranty work?

4Most gives you one year of free labour on any installation issue or repair. Most boiler manufacturers cover parts for 5 years and the heat exchanger, the most expensive part, for 15 years. After the first year, if you need service, you pay for the service call and the repair labour, but not for the part. We also offer extended labour warranties for 5 or 10 years.

Why isn't the installation price on the page?

Every home is different. The price depends on the boiler you choose, how it will be vented and how much piping needs to change, so we quote each home individually.

Request a Free Boiler Estimate

Fill out the form below and one of our heating specialists will contact you shortly to discuss your needs.

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Anything we should know about your project?

Tell us about your existing unit, any issues you're experiencing, or if you're looking for advice on choosing the best replacement option. You can also mention space limitations, access difficulty, relocation plans, or anything unique about your setup

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