Soundproofing spray foam insulation in Fort Saskatchewan has a cause most cities do not share. The railway came through here before almost everything else did, the city grew around it, and the line still runs through the middle with level crossings on it. What people are asking about is usually the horn.
A horn at a crossing is a different problem from traffic
Road noise is a broad continuous background that a wall assembly can meaningfully reduce. A locomotive horn is loud, low in frequency, and it happens at unpredictable times including the middle of the night, which is exactly the combination that people find hardest to live with. Low frequencies pass through assemblies far more readily than high ones, so an honest answer here is that the work reduces it noticeably rather than removes it, and anybody promising otherwise is selling something.
Which path it is actually arriving by
Sound enters a room by the weakest available route and it is rarely the one an owner assumes. Sometimes it is the wall, very often it is the window, and frequently it is a gap around a door, a vent, or a duct that runs from a room on the noisy side to a room on the quiet one. Treating a wall while a duct carries the noise straight past it spends money for nothing, so establishing the path is the first task and occasionally the conclusion is that insulation is not the right purchase.
Airborne and impact are separate problems
Airborne sound travels through the air and reaches a room through gaps and thin assemblies. Impact sound is generated in the structure, by footsteps or a slammed door, and travels through framing. Spray foam works on the first and does very little about the second. Separating them before anything is quoted is the single most useful step in this conversation and the one most often skipped, and it is the reason people spend money on soundproofing and end up disappointed.
Open cell is the acoustic product, and it is the opposite choice
For sound the softer open cell material is correct, because its structure absorbs airborne noise where the denser closed cell product used for nearly every other job on this site reflects it. That is worth saying explicitly, because a contractor reaching for the same product they use on every other Fort Saskatchewan job is not doing acoustic work whatever the quote says.
Soundproofing Spray Foam Insulation Fort Saskatchewan: Common Questions
Can anything stop the train horn? Reduce it noticeably, yes. Remove it, no. It is low frequency and those pass through assemblies most easily.
Is it the wall or the window? Usually the window, sometimes a duct or a vent. That gets established before anything is treated.
Will it help with footsteps upstairs? No. That is impact noise travelling through the structure rather than through the air.
Is the covering part of the price? The requirement is identified with the work. The thermal barrier a Fort Saskatchewan room needs is stated before anything is sprayed.
Size the assembly with the R-value calculator, then get a free Fort Saskatchewan quote. More on Soundproofing Spray Foam Insulation Alberta.