Rooftop Unit Installation Services

Who Needs Rooftop Unit Installation?

Rooftop unit installation is the right choice for commercial and industrial building owners who need centralized, high-capacity climate control without sacrificing valuable interior space.

‍Galaxy Plumbing Inc. serves the following types of clients across the GTA:

Commercial property owners managing office buildings, retail centres, or warehouses
Property managers and condo corporations overseeing multi-unit or mixed-use buildings
Restaurants, grocery stores, and food-service facilities requiring precise temperature control
Industrial facilities and manufacturing sites with large open floor plans
New construction developers requiring HVAC integration from the ground up

What Does Rooftop Unit Installation Include?

Galaxy Plumbing Inc. delivers a complete rooftop unit installation service that covers every stage from initial planning through to final commissioning. Each installation is performed by TSSA certified technicians and follows the Ontario Building Code and applicable ASHRAE standards.

Load calculation and system sizing based on building square footage, occupancy, and use
RTU selection and equipment sourcing from industry-leading manufacturers
Structural assessment and curb mounting to confirm roof load capacity
Refrigerant piping, electrical connections, and ductwork integration
Thermostat and building control system setup
Post-installation commissioning and performance testing
Documentation and permit support where required

How Does the Rooftop Unit Installation Process Work?

Every RTU installation Galaxy Plumbing Inc. completes follows a structured process designed to minimize downtime and ensure the system performs correctly from day one.

‍Here is what to expect:

Consultation and Site Assessment

Our technicians visit the property to review the building layout, roof condition, existing HVAC infrastructure, and load requirements.

System Design and Equipment Selection

We perform a detailed load calculation and select an RTU model sized to match the building's heating and cooling demands.

Permit and Documentation

Where required by the Ontario Building Code or local municipality, we prepare and support the permit application process.

Installation and Mechanical Work

Our TSSA certified technicians install the unit on the roof curb, complete all refrigerant, electrical, and ductwork connections, and integrate the system with your building controls.

Commissioning and Testing

We run the system through a full performance test to confirm proper airflow, temperature output, and control operation before sign-off.

How Does a Rooftop Unit Compare to a Split System?

Choosing the right commercial HVAC configuration depends on building type, available space, and operational requirements. The table below outlines the key differences between packaged rooftop units and traditional split systems to help you make an informed decision.

Feature	Packaged Rooftop Unit (RTU)	Split System
Equipment Location	Rooftop only (all-in-one)	Indoor + outdoor units
Installation Speed	Faster (single location)	Longer (two locations)
Space Savings	High (no indoor footprint)	Moderate
Maintenance Access	Centralized on roof	Split between locations
Best Suited For	Commercial/retail/industrial	Residential and light commercial
Typical Capacity	2 to 25+ tons	1.5 to 5 tons typical

Not sure which system suits your building? Our team at Galaxy Plumbing Inc. can assess your property and recommend the right solution.

It's all love, baby.

We love what we do.
It's pretty much all because of you.

Nancy Pascua ★★★★★

Just fantastic service. Spent extra time trying to figure out a mysterious water leak. Super professional and knowledgeable. Gave me options and time to decide how to proceed. Would use again and would recommend to anyone.

Bev Battaglia ★★★★★

Fantastic job by Galaxy Plumbing! Appreciated the professionalism and informative service from this team. I had a toilet and sink back up issue which the technician was able to come and resolve the same day I called. At the same time, recommendations were shared to prevent similar issues in the future. Great attitude and top notch workmanship!

Jason Lobo ★★★★★

Rob's service from start to finish was exceptional. Spoke with him about getting a dripping bathtub faucet fixed. Walked me through how to remove the valve cover. Also correctly guesses that it was a water cartridge issue. Booked a plumber the next day and sent me a text with the ETA. The communication through out was fantastic. For some one who has never booked a plumber for a smaller job, understand that it's not cheap. And you have to consider the cost of parts if not covered under warranty. Would definitely recommend Rob and use his company again if needed.

William Hucker ★★★★★

Galaxy Plumbing Inc has been our go-to plumbing solutions contractor for over 2 yrs, on my job-sites and in my home. Their knowledge and professionalism is hard to beat. They are my first call and I am always impressed with the workmanship and honesty.
If you are reading this and considering their services, just call them. Do not hesitate. The best there is.

Starr Shah ★★★★★

Rob did a wonderful job when I called to have him service/repair a leaking toilet. He was very responsive, punctual, efficient, and made sure he left the job clean. Will definitely call on him again for any future plumbing issues.

Madhavi Wadkar ★★★★★

We had our old plumbing stack replaced, and new connections set up for a re-model. Rob was great, not only did he do what we needed done, but he made some great suggestions and recommendations to make things easier for us. Very knowledgeable, professional and a pleasure to work with, we will be using Galaxy again and soon.

Trevor Arnold ★★★★★

From start to finish Rob was a pleasure to deal with. Responded to my initial inquiry right away. Communication was fantastic and the actual work even better. Showed up on time and was friendly. Finished the job in a VERY timely manner. I would suggest anyone looking for plumbing work to be done use his services as well, you won't be disappointed!

Christine ★★★★★

Excellent service! Rob was super responsive and extremely respectful of our space. We had our toilet replaced by him and he found us a nice one with a strong flush. His work was very clean and really well done. I didn’t have to worry about a thing - I will definitely use him again and have already recommended him to friends and family. He’s efficient, responsive, respectful, clean, on time, and knows what he’s doing.

aniko vargha ★★★★★

I would highly recommend Galaxy Plumbing.
Rob was extremely Proffessional and quickly reviewed the job and fixed it on budge, actually slightly lower than the estimate!
He was responsive and got back to me within a day of my request to set up an appointment.
If you have any plumbing issues call Rob, you won’t be disappointed.

Elaine Allen-Milne ★★★★★

Rob was great. On time quick to assess and fix the problem and also point out some other issues That should be addressed. He explained everything really well. Will definitely use him again. Definitely recommend

Maz Mozaffari ★★★★★

This is the 2nd time we've used Rob and his company Galaxy Plumbing for various plumbing needs. They have always been very responsive, helpful, and knowledgeable. In our most recent call out, Rob was very thorough in explaining the potential causes to our new plumbing issues, and provided a number of possible solutions without trying to pressure us to take on any unnecessary work. He was very careful to properly check and verify that the issue was resolved before he left. This was much appreciated. We would not hesitate to use Rob and his company again in the future.

Louise P ★★★★★

I had an issue with my kitchen faucet and called Galaxy Plumbing because I had seen their van in my neighbourhood. Rob returned my call and came to have a quick look and assess the situation. He ended up taking the time to fix the faucet while he was here. He was very responsive, professional and friendly.

Where Does Galaxy Plumbing Install Rooftop Units?

Galaxy Plumbing Inc. provides rooftop unit installation throughout the Greater Toronto Area.

‍Our licensed technicians serve commercial properties in the following locations:

?

Ready to Install a Rooftop Unit for Your Commercial Property?

Rooftop unit installation is one of the most practical and space-efficient HVAC solutions available for commercial buildings. When it is done right, an RTU delivers consistent comfort, centralized maintenance access, and long-term energy savings. When it is done poorly, it means repeated service calls, code violations, and uncomfortable tenants or staff.

Galaxy Plumbing Inc. brings licensed, TSSA certified expertise to every commercial HVAC installation across the Greater Toronto Area. Our technicians assess each property individually, size equipment accurately, and complete every installation to code with full documentation.

Miracle Working

Emergency Services

Leaks

Toilets

Drains

Sewer Backup

Flood Prevention Systems

Water Filtration

In-Floor Heating

Water Assistants

Faucets

What Are the Benefits of a Professionally Installed Rooftop Unit?

A properly installed rooftop unit delivers reliable, energy-efficient climate control that keeps commercial spaces comfortable year-round.

‍The benefits of professional RTU installation from Galaxy Plumbing Inc. include:

Maximized interior floor space, since all mechanical equipment is housed on the roof
Centralized maintenance access, reducing service time and disruption to daily operations
Scalable capacity for large commercial spaces that residential-grade systems cannot serve
Consistent temperature distribution through integrated ducting systems
Code-compliant installation with proper documentation for insurance and resale purposes

For properties that also require emergency HVAC support, Galaxy Plumbing offers emergency HVAC repair around the clock to keep your building operational.

Contact Galaxy Plumbing Inc. for a Free Rooftop Unit Estimate

Contact Galaxy Plumbing Inc. today to schedule a site assessment and receive a free estimate for your rooftop unit installation. Our team serves commercial clients throughout Mississauga, Toronto, Etobicoke, Scarborough, Oakville, and the surrounding GTA.

our story

Book your appointment

Frequently Asked Questions

What Other Commercial HVAC Services Does Galaxy Plumbing Offer?

In addition to rooftop unit installation, Galaxy Plumbing Inc. offers a full range of commercial and residential HVAC services across the Greater Toronto Area:

Commercial Cooling including ongoing maintenance and repair for existing RTUs and split systems
Commercial Heating for boilers, hydronic systems, and glycol heating applications
New Construction HVAC design and installation for ground-up commercial and residential builds
Air Conditioning services for residential and light-commercial properties
Heat Pump systems for energy-efficient all-season climate control

Key Takeaways

Rooftop unit (RTU) installation provides commercial buildings with an efficient, space-saving HVAC solution by placing all heating and cooling components on the roof.
Proper RTU sizing requires a detailed load calculation based on factors such as building size, occupancy, insulation, and usage to ensure reliable performance and energy efficiency.
Professional RTU installation includes equipment selection, structural assessment, electrical and ductwork connections, system controls, commissioning, and performance testing.
Commercial rooftop units are ideal for offices, retail spaces, industrial facilities, restaurants, and multi-unit properties that need centralized climate control without using valuable interior space.
Choosing a certified HVAC provider helps ensure code-compliant installation, proper documentation, improved system reliability, and long-term operational savings.

Call Now 416-727-5810

Rooftop Unit Installation for Commercial Buildings

Who Needs Rooftop Unit Installation?

What Does Rooftop Unit Installation Include?

How Does the Rooftop Unit Installation Process Work?