# Lennox Rooftop Unit Toronto | Rooftop Units Toronto Pros

> Lennox rooftop unit Toronto: Landmark, Energence and LCG sales, install and repair. Authorized dealer, OEM parts stocked. 24-hour written quote.

URL: https://rooftopunitstoronto.ca/lennox-rooftop-unit-toronto/

![Row of Lennox packaged rooftop units on a GTA industrial roof](/images/misc/row-of-lennox-packaged-rooftop-units-on-a-gta-indu.webp)

Authorized Lennox Dealer

# Lennox Rooftop Units in Toronto: Authorized Sales, Install and Repair

Last updated: October 24, 2026

Authorized Lennox commercial RTU sales, install and repair with OEM parts on the truck.

-   LCG compressor failure
-   Landmark economizer fault
-   Energence controls alarm
-   Prodigy error codes
-   No cooling
-   No heat

Book a Site Assessment

[/contact/ →](/contact/)

 

View Pricing

[#pricing →](#pricing)

24-Hour Written Quote

From $9,500 installed, 3-20 ton

-   Parts, labour, crane, permit + HST on one line
-   2-4 hr on-roof emergency response, GTA core
-   Save on Energy rebate filed on qualifying work

Red Seal HVAC-RTSSA G1 + G2ESA + CRE$5M + WSIB

24/7 Dispatch (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

Symptoms first

## Is Your Equipment Showing These Signs?

Lennox LCG compressor failures, Landmark economizer faults and Energence controls alarms: we sell, install and repair Lennox commercial RTUs with OEM parts stocked.

-   LCG compressor failure
-   Landmark economizer fault
-   Energence controls alarm
-   Prodigy error codes
-   No cooling
-   No heat

Seeing one of these? 

Book a site assessment

[/contact/ →](/contact/)

 or call dispatch for a 2-4 hour on-roof visit in the GTA core.

## Common Lennox Rooftop Unit Problems We Fix

Lennox rooftop units are among the most common 

commercial RTUs on GTA roofs

[/ →](/)

, from small retail plazas to industrial parks near Pearson. The calls we see most often are **Lennox LCG** compressor failures, **Lennox Landmark** economizer faults and **Lennox Energence** controls alarms, plus the usual capacitors, contactors and fan motors on any unit that has been running for a decade.

The first step on any Lennox unit is reading the **Prodigy controller**. It stores fault history, sensor values and settings, which tells us whether a no-cool call is a refrigerant problem, an airflow problem or a control fault before anyone opens the compressor compartment.

## Lennox Commercial Models We Sell and Service

### Lennox Landmark

A widely installed packaged unit line in 3-25 ton sizes, often with an economizer. Typical service: economizer actuators and sensors, belts, capacitors and **scroll compressor** work.

### Lennox Energence

Lennox's high-efficiency commercial line, with multi-stage and variable-speed options and high **IEER** ratings. Energence units are often rebate-eligible under Save on Energy.

### Lennox LCG

A gas/electric packaged line used on our 14-unit Airport Rd program in Mississauga. Common repairs: compressors, heat section components and controls.

## Lennox Repair, Install and Replacement Pricing

| Work | Price | Timeline |
| --- | --- | --- |
| 3-5 ton Lennox RTU installed | $9,500-$16K | 3-5 days |
| 10 ton Lennox packaged | $18K-$34K | 5-7 days |
| 15-20 ton Lennox | $32K-$58K | 7-10 days |
| Compressor repair / replace | $2,400-$5,600 | 1-2 days |

Our Dundas West 7-ton Lennox LCG compressor job came in at $3,850 all-in, with a written tally before work started. See 

commercial rooftop unit repair

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

 for how we diagnose.

## Why Use an Authorized Lennox Dealer?

-   **OEM parts** stocked on the van, so most repairs finish on the first visit
-   Warranty claims processed correctly, with startup and maintenance records
-   Prodigy controls diagnosed by techs who know the platform
-   Access to current Lennox models for replacements and programs

## Lennox for Multi-Unit Programs

Consistent equipment across a site simplifies parts, controls and maintenance. On Airport Rd, 14 Lennox LCG units went in over 11 days with the park running, and the Save on Energy filing captured an $87K rebate that other bidders never applied for. See 

Save on Energy retrofits

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

 and 

packaged rooftop units

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

 for how we size and select.

We also service and install 

Carrier

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

, York, Trane and Daikin, so mixed-brand roofs are covered by one crew.

Published pricing

## How Much Does Lennox RTUs Cost in Toronto?

Ranges from recent GTA jobs. Your written quote lands within 24 hours with parts, labour, crane, permit and HST on one line, and rebate-net pricing where the work qualifies.

25/50/25 payment on installs: 25% at order, 50% on install day, 25% on commissioning sign-off. Net-30 for commercial and PM accounts. 

See all pricing

[/pricing/ →](/pricing/)

.

### Lennox RTUs pricing

CAD + HST

| Service | Price | Timeline |
| --- | --- | --- |
| 3-5 ton Lennox RTU installed | $9,500-$16K | 3-5 days |
| 10 ton Lennox packaged | $18K-$34K | 5-7 days |
| 15-20 ton Lennox | $32K-$58K | 7-10 days |
| Compressor repair / replace | $2,400-$5,600 | 1-2 days |

Case study | Airport Rd corridor, Mississauga | Near Toronto Pearson

## 14 Lennox LCG units on Airport Rd, Mississauga

Fourteen rooftop units across an industrial park were replaced with Lennox LCG packaged equipment in 11 days while the park kept running. The Save on Energy filing, which the other bidders never made, captured an $87K rebate. On Dundas West, a 7-ton Lennox LCG that another contractor wanted to replace needed only a compressor, done for $3,850 all-in.

Equipment

Lennox LCG packaged RTUs

Size

14 units

Turnaround

11 days

Price

$87K rebate captured

Why property teams pick us

## Why Choose Rooftop Units Toronto Pros for Lennox RTUs?

### Authorized Lennox dealer

Sales, install and warranty service on Lennox commercial packaged units.

### OEM parts on the van

Lennox contactors, capacitors, motors and controls stocked for first-visit fixes.

### Prodigy know-how

We read Prodigy fault history and settings before replacing anything.

### Program experience

Our Airport Rd program installed 14 Lennox LCG units in 11 days and captured an $87K rebate.

Field photos

## Our Lennox RTUs Work

Recent GTA rooftops and mechanical rooms. Click any photo to enlarge.

### Before + After

![Failed compressor in a 7-ton Lennox LCG](/images/cards/failed-compressor-compartment-in-a-7-ton-lennox-lc.webp)

Before

![Lennox LCG after compressor replacement](/images/cards/same-lennox-lcg-unit-after-compressor-replacement-.webp)

After

Dundas West 7-ton Lennox LCG compressor: $3,850 all-in. Airport Rd 14-RTU Lennox LCG program: $87K rebate.

Client Records

## What Clients Say About Our Lennox RTUs

> "Three contractors quoted our 14-RTU Mississauga industrial park. Rooftop Units Toronto Pros was the only one who filed Save on Energy. Rebate captured $87K. Install 11 days, park running."

MKMichael K.Facility Ops, Mississauga Airport Rd

> "Another company told us the whole unit had to go. They tested the compressor, showed us it was the only failed part and had us cooling the next morning for $3,850."

AGAnthony G.Store operations, Dundas West

> "Our Landmark unit kept tripping on an economizer fault. They traced it to a failed sensor and had the OEM part on the van."

WJWendy J.Property manager, Etobicoke

> "The quote had the crane, the curb, the permits and HST on one page. The final invoice matched it."

PJPaul J.Property manager, Markham

> "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.Facility manager, Scarborough

## RTU offline or chiller alarm?

Red Seal tech on the roof in 2-4 hrs across the GTA core. Call (437) TBD.

(437) TBD

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

 

Emergency Service

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

Buyer questions

## Lennox RTUs FAQs

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)

### Are you an authorized Lennox dealer in Toronto?

Yes. We are an authorized Lennox commercial dealer for sales, installation and warranty service, with OEM parts stocked.

### Which Lennox commercial models do you service?

Lennox Landmark, Energence and LCG packaged rooftop units, plus older Lennox commercial lines where parts are still available.

### What does a Lennox rooftop unit cost installed?

3-5 ton units run $9,500-$16K installed, 10 ton $18K-$34K and 15-20 ton $32K-$58K, including crane, curb check and commissioning on standard roofs. High-efficiency Lennox units often qualify for Save on Energy rebates.

### What does a Lennox LCG compressor replacement cost?

Compressor repairs and replacements run $2,400-$5,600 depending on tonnage and access. Our 7-ton Lennox LCG compressor job on Dundas West came in at $3,850 all-in.

### What is the Lennox Prodigy controller?

Prodigy is Lennox's unit controller. It stores fault history and settings, which makes diagnosis faster and more accurate when read by a tech who knows the platform.

### Are Lennox RTUs good for multi-unit programs?

Yes. Our Airport Rd program put 14 Lennox LCG units on one industrial park in 11 days, with consistent parts and controls across the site.

### Do you handle Lennox warranty claims?

Yes. As an authorized dealer we process warranty parts claims and document startup and maintenance so claims hold up.

### Can a Lennox unit replace another brand on my curb?

Usually, with a curb adapter. We fabricate adapters in-house so a new Lennox unit fits an existing opening.

Keep the whole roof covered

## Related Services

 

![Packaged rooftop unit with economizer hood on a Toronto office roof](/images/misc/single-cabinet-packaged-rooftop-unit-with-economiz.webp) From $9,500

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

### 

Packaged Rooftop Units

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

Gas/electric and heat pump packaged units from authorized brands, sized to the roof and the load.

Details + pricing

[/packaged-rooftop-unit-toronto/ →](/packaged-rooftop-unit-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.

Details + pricing

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

 

![Carrier WeatherMaker packaged rooftop unit on a GTA retail plaza roof](/images/misc/carrier-weathermaker-packaged-rooftop-unit-on-a-gt.webp) From $9,500

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

### 

Carrier Rooftop Units

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

Carrier WeatherMaker and 50TC commercial RTUs installed, repaired and replaced.

Details + pricing

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

## Don't See Your GTA City?

Coverage from Toronto to Pearson, Mississauga to Markham. Call 

(437) TBD

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

 for a 24-hour written quote.

All Service Areas

[/service-areas/ →](/service-areas/)

 

Get a Written Quote

[/contact/ →](/contact/)

![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

## Ready to Book Lennox RTUs?

Site assessment, then a written quote within 24 hours. Parts, labour, crane, permit and HST on one line.

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