How much does a home theatre basement cost in the GTA?

A dedicated theatre is usually built as part of a full custom basement, which typically runs $40,000–$70,000+ depending on size and finishes. Where your theatre lands in that range depends on screen size, seating, acoustic treatment and lighting. You get a fixed price in writing before any work starts.

What goes into a proper basement home theatre?

Soundproofing and acoustic treatment, dedicated wiring for projection and surround sound, LED accent lighting, riser or theatre seating, and a layout designed around viewing distance. Our Mississauga showcase theatre has a 123-inch screen, projector, 7.1 surround sound and full soundproofing behind a media wall.

Can a home theatre share the basement with other rooms?

Yes — most of our theatre builds are part of a larger custom basement with a wet bar, games area, gym or open family space. One project, one permit, one crew, one fixed completion date.

Do I need a permit for a basement theatre in Ontario?

Finishing a basement involves electrical, framing and often HVAC work that requires permits under the Ontario Building Code. GSR handles the drawings, the permit application and every city inspection — you never touch a form.

Home Theatre Basements in the GTA

What Goes Into One

A Real Theatre, Not Just A TV In The Dark.

The difference between "a basement with a big screen" and a room your family fights over is in the build.

Sound

Acoustics & Soundproofing

Insulated, sound-treated walls and ceiling so movies stay loud in the theatre — and silent in the nursery upstairs.

Picture

Projection & Screens

Layouts designed around viewing distance — from big-screen TVs to full projector setups over 120 inches.

Light

LED & Scene Lighting

Dimmable LED accents, star-ceiling effects and step lights — the glow that makes it feel like a cinema.

Comfort

Seating & Risers

Tiered risers, wiring for powered recliners, and snack-bar or wet-bar add-ons within reach of the couch.

The GSR Guarantee

On Time. On Budget. Or We Pay You $4,000.

Your fixed price and completion date are locked into your contract before we start. Finish late or over budget — we pay you $4,000.

Fixed-price contract Fixed completion date $4,000 if we miss 3-year workmanship warranty Permits & inspections handled One crew, start to finish

Dedicated basement home theatre with 123-inch screen in Mississauga

Case Study · Mississauga

The 123-Inch Showcase.

Part of a 2,000 sq ft entertainment basement: a dedicated theatre with a 123" screen, projector and 7.1 surround sound, fully soundproofed behind a 13-foot media wall — plus a custom quartz bar and pool table area in the same build.

One permit. One crew. One fixed completion date — delivered.

Watch the full video tour →

How It Works

From First Call To First Movie Night.

Phone Consultation

Your vision, your space, rough pricing — before anyone visits your home.

Site Visit & Theatre Design

We measure your basement and design the theatre around real viewing distances, sight lines and speaker placement — plus everything else the basement will hold.

Permits Handled

Drawings and the full permit application — typically 1–2 months. Built to Ontario Building Code, every inspection passed.

Build, Wire & Finish

Licensed trades for electrical rough-in, our in-house crew for every finish — then we hand you the remote.

Straight Answers

Home Theatre Basements — FAQ.

A dedicated theatre is usually part of a full custom basement, which typically runs $40,000–$70,000+. Where your theatre lands in that range depends on screen size, seating, acoustic treatment and lighting. You get a fixed price in writing before any work starts.

That's how most of ours are built. Theatre + wet bar + games area, or theatre + gym — one project, one permit, one crew, one completion date. See custom basements for everything we build.

Finishing a basement involves electrical, framing and often HVAC work that needs permits under the Ontario Building Code. We handle the drawings, the application and every inspection — you never touch a form.

Not if it's built right. We insulate and sound-treat the theatre's walls and ceiling so movie-loud stays inside the room — that's a build decision, not something you can bolt on later.

Within about 50 km of Brampton — including Brampton, Mississauga, Toronto, Vaughan, Caledon, Oakville, Milton, Georgetown, Markham, Richmond Hill and Hamilton.

Your Basement. Your Theatre.

Get a free quote — tell us about your space and we'll tell you exactly what's possible, for exactly how much.

Or call/text (437) 991-4916