# Potlight Installation Markham | ESA-Licensed Crew

URL: https://potlightinstallationtoronto.ca/service-areas/markham/

![Two electricians installing LED potlights in a GTA family home](/images/misc/two-electricians-in-branded-work-polos-installing-.webp)

Serving Unionville, Cornell, Markville, Highway 7 corridor

# Potlight Installation Markham: Unionville, Cornell and Markville

Last updated: September 30, 2026

In Markham we do two things a lot: whole-home LED retrofits in older Unionville and Thornhill houses, and smart lighting in Cornell homes where owners want Lutron Caseta or Philips Hue from day one. ESA-licensed potlight installation across the GTA with a free drawn-to-scale layout, a fixed written quote and drywall patching included on every job.

Written quote within 24-48 hours of consultation 5-Star Satisfaction ESA Ontario Registered

Book Free In-Home Consultation

[/contact/ →](/contact/)

 

See GTA Pricing

[/pricing/ →](/pricing/)

22 Yrs

GTA Experience

100%

Patch Included

6 Crew

ESA Licensed

24-48 hr

Written Quote

5-Star Satisfaction ESA Ontario Registered WSIB Covered $2M Northbridge CGL

Sound Familiar?

## Dim Rooms or Dated Cans in Markham? Here's the Fix

Most calls start with one of these. Every one of them is fixable, usually in a single day.

### Dated lighting in Unionville's heritage district homes

The problem

Halogen cans and tired fixtures leave rooms dim, but owners worry any change will run into heritage rules.

Why it happens here

Unionville is one of the city's four heritage conservation districts, and its permit process covers exterior alterations to the houses.

How we fix it

An LED potlight retrofit works from inside the ceilings, and smart dimmers go into existing wall boxes. Any exterior fixture waits until the City's heritage staff have reviewed it.

### Swiss cheese ceilings

The last contractor cut holes in the wrong spots and left without patching. We patch every removed fixture, and it's written into the quote.

### Buzzing, flickering dimmers

An old dimmer paired with LED fixtures hums at low levels. We match Lutron or Leviton dimmers to the driver so it stays quiet.

### Quotes that keep growing

Scope creep once the ceiling's open. Our written quote is fixed, and nothing changes unless you ask for more work.

### Unlicensed handymen

Uninsured, unpermitted work can void your home insurance. Every installer is ESA-licensed or supervised, with WSIB and $2M coverage.

What We Install

## Smart and LED Lighting Services We Offer

Every service below comes at the same published GTA pricing, with a free drawn-to-scale layout and drywall patching included.

 

![Main floor after a whole-home LED potlight retrofit](/images/misc/two-storey-toronto-home-main-floor-after-whole-hom.webp) From $2,800

### LED Retrofit

Replace halogen or fluorescent fixtures with LED potlights, including safe removal, mercury tube disposal, drywall patching and LED-compatible dimmers.

View service

[LED Retrofit →](/led-potlight-retrofit/)

 

![Family room with smart RGB potlights and a phone app on the coffee table](/images/misc/modern-cornell-markham-family-room-with-smart-rgb-.webp) From $85 / light

### Smart Potlights

Lutron Caseta, Philips Hue, Google Home and Alexa integration with RGB and tunable-white (2200K-6500K) potlights.

View service

[Smart Potlights →](/smart-potlight-installation/)

 

![Toronto kitchen with slim LED potlights over the island and sink](/images/misc/bright-toronto-kitchen-with-six-slim-led-potlights.webp) From $550

### Kitchen Potlights

Four to eight slim LED potlights over island, sink, prep and cabinet zones, wired to a new Lutron or Leviton dimmer with drywall patching included.

View service

[Kitchen Potlights →](/kitchen-potlight-installation/)

 

![Finished Toronto basement rec room lit by rows of LED potlights](/images/misc/finished-toronto-basement-rec-room-with-rows-of-wa.webp) From $1,400

### Basement Potlights

Twenty to thirty potlights zoned across rec room, office, laundry and bar or theatre areas, in drop ceilings or drywall.

View service

[Basement Potlights →](/basement-potlight-installation/)

 

![Two-storey brick home at dusk with warm soffit potlights](/images/misc/two-storey-brick-house-in-mississauga-at-dusk-with.webp) From $950

### Exterior Soffit Lights

Eight to sixteen sealed, weatherproof IC-rated potlights under front and side soffits on a dedicated outdoor circuit with photocell or smart control.

View service

[Exterior Soffit Lights →](/exterior-soffit-potlight-installation/)

 

![Kingsway bungalow living room with warm potlights around plaster cove molding](/images/misc/cozy-1950s-kingsway-bungalow-living-room-with-ten-.webp) From $600

### Living Room Potlights

Six to ten potlights on two or three dimmer circuits, designed around an existing chandelier or ceiling fan, or a full retrofit.

View service

[Living Room Potlights →](/living-room-potlight-installation/)

 

![Master bedroom with warm potlights and headboard reading lights](/images/misc/calm-master-bedroom-in-a-north-york-home-with-four.webp) From $350

### Bedroom Potlights

Three to five warm-white potlights per bedroom with headboard reading zones and quiet dimmers that don't buzz.

View service

[Bedroom Potlights →](/bedroom-potlight-installation/)

 

![Renovated bathroom with a wet-rated potlight over the shower and vanity potlights](/images/misc/renovated-toronto-bathroom-with-wet-rated-led-potl.webp) From $450

### Bathroom Potlights

Wet-rated potlights over the shower and damp-rated ceiling fixtures, with GFCI verification and exhaust fan review on every job.

View service

[Bathroom Potlights →](/bathroom-potlight-installation/)

 

![Coffered dining room ceiling with a small potlight centred in each panel](/images/misc/coffered-dining-room-ceiling-in-a-vaughan-custom-h.webp) From $180 / fixture

### Coffered Ceiling Potlights

Small-aperture 3-inch and 4-inch fixtures placed flush between beams or on the tray step, for new builds and finished coffers.

View service

[Coffered Ceiling Potlights →](/coffered-ceiling-potlight-installation/)

 

![Crystal chandelier in a two-storey foyer with a curved staircase](/images/misc/large-crystal-chandelier-hanging-in-a-two-storey-f.webp) From $200

### Chandeliers

Chandelier replacement and new installs with wiring, ceiling box support upgrades and drop-cloth cleanup.

View service

[Chandeliers →](/chandelier-installation/)

 

![Kitchen with LED under-cabinet lighting and three pendants over the island](/images/misc/toronto-kitchen-with-warm-led-under-cabinet-strip-.webp) From $150

### Under Cabinet and Pendants

Hardwired LED under-cabinet strips on a dedicated dimmer and pendant lights over islands and dining tables.

View service

[Under Cabinet and Pendants →](/under-cabinet-pendant-lighting/)

 

![Front yard at dusk with LED path lights and an uplit maple tree](/images/misc/front-yard-of-a-vaughan-home-at-dusk-with-led-path.webp) From $1,500

### Landscape Lighting

Six to twelve LED path lights, tree uplights and accent lights on a low-voltage transformer and photocell timer.

View service

[Landscape Lighting →](/landscape-lighting-installation/)

Step by Step

## Your Retrofit or Smart Install in 5 Steps

From the first walkthrough to the final dimmer test, here's exactly what happens.

1.  1
    
    ### Free In-Home Consultation
    
    An installer walks each room with you, talks through your lighting goals, measures ceiling access and checks panel capacity. It takes 45 to 60 minutes.
    
2.  2
    
    ### Written Quote with Layout
    
    Within 24 to 48 hours you'll get itemized labour, fixtures, wiring, a drywall patching allowance and a drawn-to-scale layout of every fixture.
    
3.  3
    
    ### Material Sourcing
    
    We source fixtures from Nedco, Robertson Electric, Sonepar and Home Depot Pro. Kitchen projects usually get scheduled within one to two weeks.
    
4.  4
    
    ### Installation Day
    
    The crew arrives with drop cloths, cutting tools and pre-ordered fixtures. Kitchens take 4 to 6 hours and basements 1 to 2 days. Floors are protected and dust is cleaned up.
    
5.  5
    
    ### Walkthrough and Warranty Paperwork
    
    We test every switch and dimmer with you, then go over the fixture warranty and our written workmanship warranty.
    

## Want Smarter, Brighter Rooms? Get a Fixed Quote

The consultation is free and the written quote is fixed. Every removed fixture gets patched, and it's in writing before we drill.

Book Free In-Home Consultation

[/contact/ →](/contact/)

Local Crew

## Why Unionville and Cornell Owners Choose Us

-   Smart lighting installs with Lutron and Hue since 2015
-   Whole-home retrofits in Unionville and Thornhill with patching included
-   Scenes, schedules and voice control set up before we leave
-   Builder experience with York Region general contractors since 2010
-   Mercury tube disposal handled properly
-   Same installer from consultation to warranty follow-up

Client Stories

## What Local and GTA Customers Say

Real jobs from real GTA streets. First names and last initials only, because our clients asked for it that way.

> "Another contractor left my kitchen ceiling like Swiss cheese. They patched it, redrew the layout and had eight warm-white slims on a Lutron dimmer by Sunday dinner."

Sarah B.

Forest Hill, Kitchen potlights

> "I'd finished the basement myself and ran out of steam at lighting. Twenty-two potlights on three dimmers, done by 4pm on a Saturday."

Kevin M.

Willowdale, Basement potlights

> "Fourteen 3000K soffit lights on a dusk-to-dawn control, finished before barbecue season. The house looks great from the street."

Marco D.

Winston Churchill Blvd, Mississauga, Exterior soffit lights

5-Star Satisfaction is our standard on every job.

Local Knowledge

## LED Retrofit Specialists in York Region

Markham jobs lean two ways: 

LED retrofits

[/led-potlight-retrofit/ →](/led-potlight-retrofit/)

 in older **Unionville** and **Thornhill** homes, and 

smart lighting

[/smart-potlight-installation/ →](/smart-potlight-installation/)

 in **Cornell**, where owners often want Lutron Caseta or Philips Hue control from day one.

Unionville and Thornhill are two of the city's four heritage conservation districts, and exterior alterations there need a heritage permit. Interior retrofits don't touch the facade, so we usually start inside and check any porch or soffit fixture with heritage staff before ordering.

Cornell was planned as a New Urbanist community, with construction starting in 1997. Its newer homes have open ceilings and modern panels, so fixtures and smart dimmers can be planned together and every scene pairs cleanly.

### Typical projects here

-   Whole-home LED retrofits
-   Smart lighting integration in Cornell

![GTA street of detached homes at dusk with warm soffit lighting](/images/features/suburban-gta-street-of-detached-brick-homes-at-dus.webp)

## Getting to Your Job

We head straight east from our Vaughan workshop along **Highway 7** or the **407**, which drops us into the Highway 7 corridor, Markville and Unionville quickly. Cornell jobs are reached via **16th Avenue** or **Major Mackenzie Drive**, and Thornhill via **Steeles Avenue** or **Bayview Avenue**.

We've worked with local general contractors on new construction since 2010, so we know the area and the supply counters well. If a smart dimmer or bridge needs swapping mid-job, we can usually pick it up the same day.

After your consultation, the written quote and drawn-to-scale layout arrive within **24 to 48 hours**.

## Homes We Work In

**Unionville** and **Thornhill** have plenty of 1970s to 1990s homes with halogen cans, fluorescent kitchen box lights and old incandescent dimmers. These are ideal for **

whole-home LED retrofits

[/led-potlight-retrofit/ →](/led-potlight-retrofit/)

**: we pull the old fixtures, recycle the tubes, patch oversized holes and install slim LEDs on matched dimmers.

**Cornell** is newer and more tech-forward. Owners there often want 

smart potlights

[/smart-potlight-installation/ →](/smart-potlight-installation/)

 with **Lutron Caseta** or **Philips Hue** set up from the start, with scenes, schedules and Google Home or Alexa control. We plan fixtures and smart dimmers together so everything pairs cleanly.

**Markville** and the Highway 7 corridor mix 1980s detached homes with newer townhomes and condos, where we often do 

kitchen potlights

[/kitchen-potlight-installation/ →](/kitchen-potlight-installation/)

 and main floor 

potlight installation

[/ →](/)

 packages.

## Seasonal Planning Tips

Retrofits and smart installs are indoor work, so they aren't tied to the weather and they run all year. Many families here book whole-home retrofits in **late fall and winter**, when short days make the old lighting feel dimmest and the hydro savings kick in fastest.

Soffit and landscape lighting in Unionville and Cornell can't go in once the ground and soffits freeze, so it's booked **April through October**. Spring is busiest, and a smart photocell or Caseta schedule means those lights follow the sunset all year.

Coverage

## Areas We Cover in Markham

Served from our Vaughan workshop, with the same crew and pricing across the GTA.

### Neighbourhoods

UnionvilleCornellMarkvilleHighway 7 corridorThornhillBerczy VillageWismerCathedraltown

### Postal codes we cover

L3RL6GL6BL3PL3T

### Local landmarks

-   Markville Shopping Centre
-   Pacific Mall
-   Markham Stouffville Hospital
-   Toogood Pond Park
-   Markham Pan Am Centre

### Getting here

We head east from Vaughan on Highway 7 or Highway 407, crossing Highway 404 into Unionville, Markville and Cornell.

Nearby transit: Unionville GO, Markham GO, Mount Joy GO, Centennial GO

Open in Google Maps

[https://www.google.com/maps/dir/?api=1&destination=43.8561,-79.337 →](https://www.google.com/maps/dir/?api=1&destination=43.8561,-79.337)

Local Questions

## Markham Potlight FAQs

Which parts of Markham do you serve?

Unionville, Cornell, Markville, Thornhill and the Highway 7 corridor, plus Berczy Village, Wismer and Cathedraltown. Postal codes L3R, L6G, L6B, L3P and L3T are all covered.

Can you set up Lutron Caseta in my Cornell home?

Yes. Cornell owners often want Lutron Caseta from day one. We install the smart dimmers and Pico remotes, pair everything to the hub, set scenes and schedules, and link Google Home or Alexa. Our five-room smart starter package begins at $850.

What does a whole-home retrofit cost in Unionville?

Whole-home LED retrofits of 25 to 40 lights in a two-storey home start at $2,800. That covers taking out halogen and fluorescent fixtures, recycling tubes, patching oversized openings and new LED-compatible dimmers. Your fixed quote depends on fixture count and patching.

Does a heritage permit apply to lighting in Unionville?

For exterior work, it can. Unionville is one of Markham's four heritage conservation districts, and exterior alterations there need a heritage permit. Interior potlight retrofits don't change the facade, so we usually start inside and check porch or soffit fixtures with the City's heritage staff first.

Should I choose Philips Hue or Lutron Caseta?

Caseta is best for reliable dimming and scenes on regular LED potlights. Hue is best for colour-changing or tunable-white fixtures. Many homes here use Caseta for most rooms and Hue in a games room or theatre. We recommend a setup at your consultation.

My Thornhill home has old halogen pot lights. Can you reuse the holes?

Sometimes. Older halogen cans are usually 5 or 6 inches, while slim LEDs are often 4 inches. We either use a larger trim that covers the opening or patch the hole down to size. Either way, patching is included, so you won't see rings around the new lights.

Can smart lights work if my internet goes down?

Yes. Lutron Caseta runs on its own Clear Connect signal and Philips Hue on Zigbee, so wall switches and remotes keep working locally. You'd only lose app control from outside the house and voice commands until your internet's back.

Do you install soffit lights on Cornell and Unionville homes?

Yes. A twelve-light soffit job usually lands between $950 and $1,550, installed April through October. A smart schedule keeps the lights following sunset without a photocell, and in the Unionville heritage district we check exterior fixtures with heritage staff before ordering.

Nearby Service Areas

## Also Near Markham

The same crew, the same pricing and the same drywall patch guarantee in the cities next door.

Potlight Installation Richmond Hill

Oak Ridges, Bayview Glen, Mill Pond, Highway 7 to Elgin Mills, Jefferson, Westbrook, Rouge Woods

[/service-areas/richmond-hill/ →](/service-areas/richmond-hill/)

Potlight Installation North York

Willowdale, Bayview Village, Newtonbrook, Yonge corridor Sheppard to Steeles, York Mills, Bathurst Manor, Don Mills

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

See every GTA service area

[/service-areas/ →](/service-areas/)

![Warm LED potlights glowing in a finished GTA living room at dusk](/images/hero/warm-3000k-led-potlights-glowing-in-a-finished-gta.webp)

Written quote and layout within 24-48 hours

## Book Your Markham Potlight Installation

Book a free in-home consultation. You'll get a drawn-to-scale layout and a fixed written quote within 24 to 48 hours.

Book Free In-Home Consultation

[/contact/ →](/contact/)

 

See GTA Pricing

[/pricing/ →](/pricing/)

-   Drywall patch guaranteed
-   Fixed written quote
-   Written workmanship warranty
-   WSIB + $2M insured