Soundproof Walls and Ceilings for Condos, Studios, and Offices
Toronto Drywall Pro builds acoustic drywall ceilings and party walls for Toronto condo owners, home recording studios, and commercial tenants sharing walls in open-plan office space. Acoustic drywall is a specialized form of drywall installation: we install STC-rated systems combining double-layer drywall, decoupling channels, acoustic insulation such as Sound Attenuation Batts, and acoustic-rated boards like SONOpan and QuietRock. Since 2002, our single in-house crew has completed 2,000+ residential, commercial, and condo projects across the GTA.
Most condo retrofits target STC 50 to 60+ on a party wall and 55+ on a ceiling. Ceilings also carry impact noise from footsteps and dropped objects in the suite above, so decoupling and cavity insulation matter even more overhead than on a wall. We walk through what your current assembly likely scores, what each upgrade buys you in decibels, and what stays within Toronto condo board approval rules.
Acoustic Drywall Ceiling Costs in Toronto (2026)
- Retrofit acoustic upgrade (SONOpan plus new drywall layer): $5 to $8 per square foot
- Full tear-out with Resilient Channel and double-layer drywall: $8 to $12 per square foot
- Studio-grade decoupled assembly (STC 65 plus): $10 to $15 per square foot
- SONOpan acoustic panel material cost: Roughly $35 to $50 per 4 by 8 panel
- QuietRock constrained-layer drywall material cost: Roughly $80 to $130 per panel
- Sound Attenuation Batts (mineral wool): Included in most acoustic assembly quotes
- Condo board approval coordination: Included with every condo retrofit quote
A typical 200 square foot condo party wall retrofit lands between $1,000 and $1,600 for a SONOpan-and-new-drywall upgrade, or $1,600 and $2,400 for a full tear-out with Resilient Channel.
What Can You Still Hear at STC 50, 55, 60, and 65?
STC 50. Ontario Building Code minimum at party walls. Loud speech is still audible through the wall; normal speech is muffled. Most builder-standard condo walls.
STC 55. Noticeable improvement. Normal speech is no longer intelligible. TV at moderate volume is muffled but still audible.
STC 60. Loud speech rarely audible. TV and music at normal volume are largely blocked. This is what most condo retrofit clients are aiming for.
STC 65 plus. Loud music is muffled. Drums and bass are partially audible but reduced. Studio-grade.
STC 70 plus. Specialty studio and broadcast applications. Decoupled construction, mass-loaded vinyl, multiple drywall layers.
SONOpan vs QuietRock vs Resilient Channel: What Each Adds
SONOpan. A wood-fibre acoustic panel applied between the existing drywall and a new drywall layer. Adds about 6 to 8 STC points in a typical retrofit. Cost-effective and easy to add in a condo retrofit because you’re not tearing out the existing wall.
QuietRock. Constrained-layer drywall with internal viscoelastic damping. Replaces a standard drywall layer and adds 8 to 12 STC points compared to standard drywall in the same configuration.
Resilient Channel (RC-1). Decoupling channel that mounts drywall away from the studs or ceiling joists, breaking the direct sound path through framing. Adds significant STC improvement (often 10 plus points) but requires the wall or ceiling to come down to framing. On condo ceilings that form a fire separation, the acoustic layers go over Type X fire-rated drywall so the ceiling keeps its Ontario Building Code fire rating.
Sound Attenuation Batts (SAB). Mineral wool batts inside the wall or ceiling cavity. They add sound absorption inside the cavity, which damps resonance, for a modest STC improvement on their own (3 to 5 points), but they’re the cheap insurance every assembly should include.
Decoupled stud walls. Two separate stud walls with a gap between them, no rigid connection. Studio-grade STC, but requires more wall thickness than most condos can afford.
Should You Retrofit or Tear Out to the Studs?
Most Toronto condo soundproofing jobs are retrofit work, adding mass and decoupling on top of an existing wall rather than tearing back to studs. Retrofit pros: cheaper, faster, less condo-board friction, fewer permit issues. Retrofit con: you can’t add resilient channel without coming down to studs, so the STC ceiling is around STC 60. In semi-detached and row houses in neighbourhoods like Leslieville and the Annex, the shared party wall with the house next door is the usual target, and there is no condo board to approve a full tear-out.
Full tear-out is the right call when:
- Existing wall is already failing (cracks, deteriorating drywall, water damage history)
- Target STC is above 60
- The condo board has approved a full demo (rare but possible)
How We Compare
| Feature | Typical Provider | Toronto Drywall Pro |
|---|---|---|
| Specialization | General renovator, acoustic work occasional | Drywall-only specialist since 2002 |
| Crew | Framing, drywall, and taping often subcontracted | One in-house crew from channel to finish |
| Assembly spec | ”Soundproof drywall” with no stated STC target | STC target set and assembly documented before work starts |
| Condo board coordination | Left to the owner | Work permit and assembly documentation included |
| Coverage | Varies | Licensed, bonded, WSIB-compliant, $2M insured |
| Estimate | Phone ballpark | Free on-site estimate with STC recommendation |
Getting Toronto Condo Board Approval for Soundproofing
Most Toronto condo boards approve interior wall and ceiling acoustic upgrades, especially when there’s a documented noise complaint from a neighbour. We coordinate on:
- Work permit (board-level approval before mobilization)
- Building rules (elevator booking, parking, noise windows, dust containment)
- Assembly documentation (board often wants the spec for record)
We’ve completed acoustic retrofits in downtown Toronto towers in CityPlace and Liberty Village, Etobicoke Humber Bay buildings, North York Yonge-corridor condos, and Mississauga Hurontario condos.
Soundproofing Crews Across Toronto and the GTA
As a licensed drywall contractor, Toronto Drywall Pro installs acoustic drywall across the Greater Toronto Area, with condo retrofit volume concentrated in downtown Toronto, Etobicoke, North York, and Mississauga. Basement suite and home-studio work also takes our crew to detached and semi-detached homes in Scarborough, Vaughan, and Oakville.
What Is an Acoustic Drywall Ceiling System?
Acoustic drywall is a sound-dampening wall or ceiling system that uses mass-loaded gypsum panels, resilient mounting channels, and acoustic sealant to reduce airborne noise transmission between spaces. It differs from standard drywall in that it is engineered to achieve a measurable Sound Transmission Class (STC) rating, which describes how well the assembly blocks sound. STC 50 is the Ontario Building Code minimum between dwelling units. STC 55 to 65 is what most homeowners actually need to eliminate noticeable noise from neighbours, home studios, or mechanical rooms. The system works by adding mass, decoupling the surface from the framing, and sealing every penetration against sound flanking.
What Does Acoustic Drywall Include?
- Resilient Channel RC-1 or hat channel mounted to studs or joists before panel hang
- Staggered-stud or double-stud framing for higher-performance assemblies targeting STC 60+
- SONOpan acoustic wood-fibre panels or QuietRock constrained-layer gypsum in single or double-layer configuration
- Sound Attenuation Batts (SAB) in all wall and ceiling cavities
- Acoustic sealant at all perimeter gaps, outlet boxes, and penetrations to prevent flanking
- Standard tape, mud, and Level 4 finish over the completed assembly
How Much Does Acoustic Drywall Cost in Toronto?
Acoustic drywall in Toronto runs $5 to $12 per square foot installed depending on the STC target and assembly type. A retrofit-over-existing upgrade with SONOpan plus new drywall runs $5 to $8 per square foot. A full tear-out and rebuild with Resilient Channel and QuietRock runs $8 to $12 per square foot. Home studio builds with double-stud framing run higher. Free on-site estimate with STC recommendation included.
Who Needs Acoustic Drywall Installation?
Condo owners dealing with impact noise from upstairs neighbours in Toronto high-rises. Homeowners finishing a basement secondary suite who need sound separation between floors. Music producers and content creators who need a quiet home studio. Commercial tenants fitting out office space where speech privacy between boardrooms and private offices is required.
