My stacked townhouse in Barrhaven has terrible noise transfer from the unit below, what are my options?

Noise transfer from the unit below in a Barrhaven stacked townhouse is one of the most common soundproofing complaints in Ottawa's suburban communities, and you have several effective options depending on your budget and how much disruption you can tolerate. The core problem in most stacked townhouses built in the 2000s and 2010s in areas like Half Moon Bay, Stonebridge, and Longfields is that the floor-ceiling assembly between units meets only the bare minimum Ontario Building Code STC 50 and IIC 50 requirements — which is not enough to block everyday living noise like conversations, TV, music, and footsteps.
Your most effective option is a decoupled ceiling treatment applied from your side. This involves installing sound isolation clips (RSIC-1 or equivalent) to the existing ceiling joists, attaching hat channel, filling the joist cavity with Rockwool Safe'n'Sound acoustic mineral wool, and finishing with two layers of 5/8-inch Type X drywall with Green Glue compound between them. This system can improve your floor-ceiling assembly by 15–20 STC points, bringing you from a marginal STC 50 up to STC 65–70, which makes normal conversation from below virtually inaudible. For a typical Barrhaven stacked townhouse with 800–1,000 square feet of ceiling area, budget $12,000–$22,000 installed for this approach.
Targeted and Budget-Friendly Alternatives
If a full ceiling treatment is beyond your current budget, you can take a targeted room-by-room approach starting with the rooms where noise bothers you most — typically the master bedroom and living room. Treating just the bedroom ceiling (roughly 150 square feet) costs $2,700–$4,200 and can dramatically improve your sleep quality. Another option if the noise is primarily impact noise (footsteps, thuds) rather than airborne noise (voices, TV) is to work cooperatively with your downstairs neighbour. A quality acoustic underlayment installed under their flooring — such as Pliteq GenieMat or cork underlayment at $3–$6 per square foot — addresses impact noise at the source and is far more effective than treating it from the receiving side.
Before investing in major work, do some detective work to identify where noise is actually entering your unit. Sound often flanks through shared walls, ductwork, and plumbing chases rather than coming straight through the floor. Check whether your HVAC ducts connect to the unit below — in many Barrhaven townhouses, the forced-air system uses shared trunk lines that act as open highways for sound. Duct silencers or acoustic duct lining can address this for $500–$1,500. Electrical outlets and light fixtures on the shared ceiling are also common weak points that benefit from acoustic putty pads ($3–$6 each) — an inexpensive fix that can make a noticeable difference.
Keep in mind that your townhouse corporation's by-laws may require approval for ceiling modifications, particularly if they affect fire-rated assemblies. Under the Ontario Building Code, any changes to fire-rated floor-ceiling assemblies must maintain the original fire rating, which is why using Type X drywall is standard practice. Get written approval from your condo board before starting, and ensure your contractor provides documentation that the new assembly maintains fire compliance. For a project like this, a soundproofing professional who can assess your specific unit and identify all the noise pathways will give you the best return on your investment — the Ottawa Contractor Directory can help you connect with local specialists.Looking for experienced contractors? The Ottawa Construction Network connects homeowners with qualified professionals:Luxe Painting and Renovations JC CarpentryTransitions RenovationsEstra DesignGeerts Roofing IncView all contractors →