# Commercial RTUs Scarborough | Rooftop Units Toronto Pros

> Commercial rooftop units in Scarborough, ON by Rooftop Units Toronto Pros. Serving Golden Mile, Scarborough Town Centre. 24-hr quote. Red Seal crew.

URL: https://rooftopunitstoronto.ca/service-areas/scarborough/

![Packaged rooftop units on a GTA commercial roof at golden hour](/images/hero/row-of-packaged-rooftop-units-on-a-gta-commercial-.webp)

Serving Golden Mile, Agincourt, Highway 401 industrial

# Commercial Rooftop Units in Scarborough, With Phased Retrofits for Older Buildings

Last updated: October 24, 2026

Scarborough's Golden Mile and 401 industrial stock carries older RTUs on legacy curbs. We phase replacements to keep tenants running, fabricate curb adapters in-house and coordinate crane days.

-   2-4 hr on-roof (GTA core)
-   Dispatch via 401 / DVP / Eglinton
-   24-hr written quote

Book a Site Assessment

[/contact/ →](/contact/)

 

(437) TBD

[tel:+14370000000 →](tel:+14370000000)

Book a Site Assessment

[/contact/ →](/contact/)

 

Call (437) TBD

[tel:+14370000000 →](tel:+14370000000)

-   24-Hour Written Quote (not a sales pitch)
-   24/7 Emergency RTU Dispatch (2-4 hr on-roof GTA core)
-   Red Seal HVAC-R + TSSA + ESA + CRE Chiller
-   $5M Liability + WSIB + COI in 24 Hours
-   Save on Energy Rebate Filed on Your Behalf

1,800+

GTA installs

97%

Uptime

2-4 hr

On-roof, GTA core

48

Sites under contract

Risk Disclosure

## Aging Rooftop Units in Scarborough? Here Is the Pattern

The local pattern

### Repair or replace on a Golden Mile building that may be redeveloped

**What you see:** The RTUs are past 20 years and failing, but the owner does not want to fund new units on a building that could come down within the decade.

**Why it happens here:** The Golden Mile's commercial and industrial stock dates back to the 1950s boom along Eglinton Ave East, and the City's Golden Mile Secondary Plan now points much of that land at redevelopment.

**What we do:** We rank each unit, repair what can carry the building to its likely horizon, and phase replacements only where the payback fits, with Save on Energy filed on each phase.

01

### Wrong diagnosis

A residential tech misreads a commercial economizer and replaces parts that did not need it. We megger windings and test controls before anyone quotes a compressor.

02

### Wrong equipment match

A contractor quotes a 5-ton split when the roof needs a 10-ton packaged unit. Manual J/S sizing and a curb check come before the quote, not after the crane.

03

### Wrong rebate math

Nobody files Save on Energy and the PM leaves $8K-$30K on the table. We lock the pre-approval before equipment is ordered and net it on the invoice.

Most requested here

## Phased Replacements, Curb Adapters and 20-Ton Units

The services these buildings call us for most. All 24 services are available, with the same published pricing as the rest of the GTA.

 

![Old rooftop unit lifted off a Toronto retail roof by crane during a replacement](/images/misc/old-rusted-rooftop-unit-being-lifted-off-a-toronto.webp) From $9,500

[/commercial-rooftop-unit-replacement-toronto/ →](/commercial-rooftop-unit-replacement-toronto/)

### 

Commercial Rooftop Unit Replacement

[/commercial-rooftop-unit-replacement-toronto/ →](/commercial-rooftop-unit-replacement-toronto/)

End-of-life RTU swaps with curb adapters, crane permits and rebate-net pricing.

-   Written repair-vs-replace recommendation
-   Custom curb adapter fabrication for legacy footprints
-   Crane day: hoisting + street-occupancy permits
-   Rebate-net pricing on qualifying retrofits

Details + pricing

[/commercial-rooftop-unit-replacement-toronto/ →](/commercial-rooftop-unit-replacement-toronto/)

 

![Open packaged rooftop unit compressor compartment on a Toronto commercial roof during a repair](/images/misc/red-seal-technician-tools-laid-beside-an-open-pack.webp) From $275

[/commercial-rooftop-unit-repair-toronto/ →](/commercial-rooftop-unit-repair-toronto/)

### 

Commercial Rooftop Unit Repair

[/commercial-rooftop-unit-repair-toronto/ →](/commercial-rooftop-unit-repair-toronto/)

Red Seal diagnostics for packaged RTUs: compressors, refrigerant, economizers, controls. Written tally before work starts.

-   Diagnostic $275-$425 business hours, written tally pre-work
-   Compressor repair / replace $2,400-$5,600
-   Refrigerant leak search + recharge $850-$2,800 (R-410A $85/lb)
-   Economizer + controls diagnostic $450-$900

Details + pricing

[/commercial-rooftop-unit-repair-toronto/ →](/commercial-rooftop-unit-repair-toronto/)

 

![20-ton packaged rooftop unit lifted by crane over a Scarborough warehouse](/images/misc/large-20-ton-packaged-rooftop-unit-suspended-from-.webp) From $32,000

[/20-ton-rooftop-unit-toronto/ →](/20-ton-rooftop-unit-toronto/)

### 

20-Ton Rooftop Units

[/20-ton-rooftop-unit-toronto/ →](/20-ton-rooftop-unit-toronto/)

15-20 ton RTUs with structural review and crane day for industrial and large commercial roofs.

-   15-20 ton installed $32K-$58K
-   7-10 day timeline
-   Structural review + crane
-   Dual refrigeration circuits, DDC-ready

Details + pricing

[/20-ton-rooftop-unit-toronto/ →](/20-ton-rooftop-unit-toronto/)

 

![York Predator packaged rooftop unit on a Scarborough commercial roof](/images/misc/york-predator-packaged-rooftop-unit-on-a-scarborou.webp) From $9,500

[/york-rooftop-unit-toronto/ →](/york-rooftop-unit-toronto/)

### 

York Rooftop Units

[/york-rooftop-unit-toronto/ →](/york-rooftop-unit-toronto/)

York Predator, Sunline and Sun Choice service, plus legacy York replacement planning.

-   Predator, Sunline, Sun Choice models
-   Legacy York replacement notes
-   Curb adapter fabrication
-   OEM parts stocked

Details + pricing

[/york-rooftop-unit-toronto/ →](/york-rooftop-unit-toronto/)

Need something else? See 

all 24 commercial services

[/services/ →](/services/)

 or 

published pricing

[/pricing/ →](/pricing/)

.

How it works

## How a Phased Retrofit Runs

Five steps, the same on every job, from a single compressor to a multi-unit program.

1.  01
    
    ### Site assessment
    
    A Red Seal lead walks the roof, reads nameplates, checks curbs, access and electrical, and logs every symptom.
    
2.  02
    
    ### 24-hr written quote
    
    Parts, labour, crane, permit and HST on one line, plus the repair-vs-replace math when the unit is old.
    
3.  03
    
    ### Rebate pre-approval
    
    We file Save on Energy or Enbridge paperwork before equipment is ordered, so the rebate is locked in.
    
4.  04
    
    ### Install / repair
    
    WSIB crews, crane day and street-occupancy permits handled. Tenants get a schedule, not a surprise.
    
5.  05
    
    ### Commissioning sign-off
    
    Startup readings, controls check and a commissioning report you can file. Final 25% only after sign-off.
    

Standard 5-10 ton RTU: 3-5 business days from quote to startup.

## Ready to Rank Your Scarborough Units?

Written quote within 24 hours, final 25% only after commissioning sign-off. Call (437) TBD.

(437) TBD

[tel:+14370000000 →](tel:+14370000000)

 

Emergency Service

[/emergency-rooftop-unit-repair-toronto/ →](/emergency-rooftop-unit-repair-toronto/)

Local proof

## Why Owners Along the 401 and Eglinton East Call Us

-   Phased RTU retrofits that keep tenants running
-   In-house curb adapter fabrication for legacy footprints
-   Crane lifts with structural review, like our 20-ton warehouse unit
-   Authorized York dealer for Predator, Sunline and Sun Choice
-   2-4 hr on-roof emergency response inside the GTA core
-   Save on Energy filed to offset replacement cost

Case studies

## Recent Work Nearby

Neighbourhood or intersection only, never a street address.

Highway 401 industrial, Scarborough

### Scarborough 20-ton + crane

Crane day + structural review | 7-10 days

A 20-ton warehouse unit set by crane after a structural check, with permits, lift and startup on the promised dates.

20-Ton RTU

[/20-ton-rooftop-unit-toronto/ →](/20-ton-rooftop-unit-toronto/)

Client Records

## What Local Clients Say

> "A 20-ton unit on our Scarborough warehouse needed a crane and a structural check. Permits, lift and startup were done on the dates promised."

RPRaj P.Scarborough

Neighbourhoods + landmarks

## Where We Work in Scarborough

City of Toronto (Scarborough district)

-   Golden Mile
-   Scarborough Town Centre
-   Agincourt
-   Highway 401 industrial
-   Malvern

-   Scarborough Town Centre
-   Eglinton Ave East (Golden Mile)
-   Highway 401

Postal codes (FSA) we cover: M1L, M1P, M1S, M1V, M1B

Local logistics

## Getting Around the East End

The district is inside our 2-4 hour GTA core response. Crews reach the **Highway 401 industrial** belt and the **Town Centre** from the 401, the **Golden Mile** along Eglinton Ave East from the DVP, and **Agincourt** and **Malvern** from the 401 and Sheppard.

The Eglinton Crosstown and ongoing road work along the Golden Mile can slow access, so crane days are planned with traffic in mind. Most industrial roofs off the 401 have yard access for cranes, and our 20-ton warehouse job was set by crane after a structural check with permits, lift and startup on the promised dates. Because the district is in the City of Toronto, cranes on municipal roads need City ROW permits, which we file.

![Crane lifting a packaged rooftop unit onto a GTA commercial roof](/images/misc/crane-lifting-a-packaged-rooftop-unit-onto-a-flat-.webp)

View on Google Maps

[https://www.google.com/maps/dir/?api=1&destination=43.7764,-79.2318 →](https://www.google.com/maps/dir/?api=1&destination=43.7764,-79.2318)

Building familiarity

## Golden Mile and 401 Building Stock

-   **Golden Mile commercial buildings:** older retail and office stock along Eglinton Ave East, many with 
    
    commercial rooftop units
    
    [/ →](/)
    
     past 15-20 years on legacy curbs.
-   **Highway 401 industrial:** warehouses and light industrial buildings with 15-25 ton 
    
    packaged units
    
    [/packaged-rooftop-unit-toronto/ →](/packaged-rooftop-unit-toronto/)
    
    , like the 
    
    20-ton unit
    
    [/20-ton-rooftop-unit-toronto/ →](/20-ton-rooftop-unit-toronto/)
    
     we set by crane.
-   **Town Centre area:** retail, office and mixed-use with podium RTUs.
-   **Agincourt and Malvern plazas:** 3-10 ton RTUs over retail and restaurant tenants.

The pattern is aging equipment on curbs that new units do not fit. We **phase 

replacements

[/commercial-rooftop-unit-replacement-toronto/ →](/commercial-rooftop-unit-replacement-toronto/)

** over months or seasons so tenants keep running, **fabricate curb adapters in-house** and coordinate crane days so a whole roof is not opened at once. Many 

York Sunline

[/york-rooftop-unit-toronto/ →](/york-rooftop-unit-toronto/)

 and 

Carrier

[/carrier-rooftop-unit-toronto/ →](/carrier-rooftop-unit-toronto/)

 units here are at end of life.

Seasons on these roofs

## Seasonal Notes for Older Units

Older units fail first in the first heat wave and the first deep freeze, so phased programs here usually replace the worst units in spring and the next group in fall. 

Save on Energy

[/save-on-energy-retrofit-toronto/ →](/save-on-energy-retrofit-toronto/)

 pre-approval takes 4-8 weeks, so filing in winter sets up spring lifts. Industrial gas heat sections should be checked in October before warehouse doors start opening into cold weather.

Published GTA pricing

-   RTU diagnostic (business hr)$275-$425
-   3-5 ton RTU installed$9,500-$16K
-   10 ton packaged installed$18K-$34K
-   Annual RTU maintenance$295-$450/unit

All price tables

[/pricing/ →](/pricing/)

Local questions

## Scarborough Commercial RTU Questions

Still have a question?

A Red Seal lead answers, not a call centre. Written quote within 24 hours.

Book a Site Assessment

[/contact/ →](/contact/)

(437) TBD

[tel:+14370000000 →](tel:+14370000000)

### How fast is emergency response in Scarborough?

The district sits inside our GTA core, so a tech reaches the Golden Mile, Agincourt, Malvern and the 401 industrial belt in 2-4 hours after a 30-minute dispatch window, 24/7.

### Should we replace RTUs on a Golden Mile building that may be redeveloped?

Not always. The City's Golden Mile Secondary Plan points much of the Eglinton Ave East corridor at redevelopment, so we rank units by risk and repair what can carry the building to its likely horizon. Replacement is quoted only where the payback fits.

### Can you replace our old RTUs in phases?

Yes. We rank units by condition and risk, replace the worst first, and schedule the rest over the following seasons so tenants stay running and capex is spread out.

### Our new RTU will not fit the old curb. What happens?

We fabricate custom curb adapters in our own shop and re-flash at the curb, so a new unit sits on the old opening without rebuilding the roof.

### What does a 20-ton RTU cost in Scarborough?

15-20 ton units run $32K-$58K installed in 7-10 days with structural review and crane. Our 20-ton warehouse unit off the 401 was set by crane after a structural check.

### Do you need a City permit for a crane lift off the 401?

If the crane sits on a City of Toronto road, yes: a ROW and street occupancy permit. Lifts from private industrial yards usually do not. We file whatever is needed as part of the quote.

### Do you service York Predator and Sunline units?

Yes. We are an authorized York dealer for Predator, Sunline and Sun Choice units and plan replacements for legacy York equipment on Golden Mile and Agincourt roofs.

### Do you service Golden Mile retail plazas?

Yes. Repairs, maintenance and replacement on 3-10 ton RTUs over retail and restaurant tenants along Eglinton Ave East.

Nearby coverage

## Areas Near Scarborough

Markham

Markham's tech and office parks along Highway 7 and the 404 run multi-tenant mid-rises where a server room cannot lose cooling. We plan RTU redundancy, controls integration and quarterly maintenance around that.

2-4 hr on-roof (GTA core)

[/service-areas/markham/ →](/service-areas/markham/)

North York

North York's Yonge corridor stacks offices, medical and dental clinics and condo towers. Clinics need steady, filtered air and after-hours installs; boards need Status Certificate documentation.

2-4 hr on-roof (GTA core)

[/service-areas/north-york/ →](/service-areas/north-york/)

Downtown Toronto

Downtown buildings put RTUs, chillers and cooling towers on tight roofs above busy streets. We handle the crane permits, condo board paperwork and tenant scheduling that come with working in the core.

2-4 hr on-roof (GTA core)

[/service-areas/toronto/ →](/service-areas/toronto/)

![Packaged rooftop units on a Toronto commercial roof at dusk](/images/misc/toronto-commercial-rooftop-at-dusk-with-a-row-of-p.webp)

24/7 dispatch | 2-4 hr on-roof GTA core

## Start a Scarborough Retrofit Plan

Site assessment, then a written quote within 24 hours. Response: 2-4 hr on-roof (GTA core).

Book a Site Assessment

[/contact/ →](/contact/)

 

Call (437) TBD

[tel:+14370000000 →](tel:+14370000000)

-   24-hour written quote
-   Save on Energy filed for you
-   Red Seal + TSSA + ESA + CRE
-   $5M liability + WSIB