Soundproofing a Room Cost (2026): What Actually Stops Noise, by Method
What soundproofing a room costs in 2026: typical rooms from a 10x10 office to a primary bedroom, a wall four ways, the ceiling and footsteps, outlets and doors, what doesn't work, the code, and a 12x14 bedroom priced line by line.
The assumptions
This model assumes
- Wood stud walls and joist ceilings in a house
- 5/8 in. drywall, finished and painted
- Job cost before markup: labor and materials, no markup or tax
- Prices from Clamp's catalog on November 4, 2026
The model, step by step
Priced through Clamp's catalog on November 4, 2026, job cost before markup, with the door replaced and sealed. The low number is a layer of 5/8 in. drywall with Green Glue over the existing walls (nothing opened); the high number opens them and rebuilds on clips and hat channel with batts and two layers. A 12x14 bedroom, walls and ceiling, runs $4,566 to $10,546 job cost before markup.
| Room | Damped | Clips |
|---|---|---|
| 10x10 office or nursery, wallsBallpark price range $3,884 to $12,490 | $2,987 | $6,245 |
| 10x10 office or nursery, walls and ceilingBallpark price range $4,670 to $15,624 | $3,592 | $7,812 |
| 12x14 bedroom, wallsBallpark price range $4,643 to $15,464 | $3,571 | $7,732 |
| 12x14 bedroom, walls and ceilingBallpark price range $5,936 to $21,092 | $4,566 | $10,546 |
| 14x16 primary bedroom, walls and ceilingBallpark price range $6,835 to $24,716 | $5,258 | $12,358 |
| 20x20 basement ceiling onlyBallpark price range $3,388 to $13,129; no door | $2,606 | $6,565 |
Four things block sound through a wall. Absorption only quiets the room you're in.
The four that work
MassHeavier walls block more. A second layer of 5/8 in. drywall adds mass.
DecouplingHang the drywall on clips or channel so it doesn't touch the studs. This is the big jump.
DampingA compound like Green Glue between two layers turns vibration into heat. In lab tests a second 5/8 in. layer with it rated STC 52 against 42 without.
SealingSound goes through any gap. Seal the edges, the boxes and the door.
The same 14 ft by 8 ft wall (112 sq ft), four methods, with the lab ratings published for each kind of wall.
| Method | Cost | A sq ft |
|---|---|---|
| Insulation onlyOpen, sound batts, one new layer. Lab: STC 33 to 34 with batts | $1,461 | $13 |
| Damped layer5/8 in. over the existing with Green Glue, nothing opened | $1,023 | $9 |
| Resilient channelOpen, batts, channel, 2 layers with Green Glue. Lab: STC 52 to 59 | $2,014 | $18 |
| Clips and hat channelOpen, batts, clips, 2 layers with Green Glue. Lab: STC 53 to 64 | $2,325 | $21 |
Noise from a room above is two problems: voices (STC) and footsteps (IIC). A bare wood floor over a drywall ceiling rates IIC 32.
| Method | Cost | Hours |
|---|---|---|
| Damped layer5/8 in. over the existing, Green Glue | $1,295 | 14 |
| Resilient channelOpen, batts, channel, 2 layers | $2,648 | 23 |
| Clips and hat channelOpen, batts, clips, 2 layers | $3,114 | 21 |
Footsteps, by USG's floor tests
Bare wood floorIIC 32
Carpet and padIIC 58
Carpet, ceiling on channelIIC 66
Carpet, channel and battsIIC 70
Workmanship decides what a wall really does. USG puts field results 5 to 15 points below the lab.
Where sound gets out
OutletsFive uncaulked outlets took a STC 50 wall to 41 in USG's test. Putty pads and sealant fix it.
Channel shortsScrews through resilient channel into studs cost up to 8 points as shorts add up; channel sandwiched between layers fell from Rw 60 to 43.
The doorJELD-WEN lists a flush hollow-core door at STC 24 and a solid-core one at 30; the gaps around it matter as much. A solid-core slab with a seal kit adds $726 job cost before markup to a wall job ($1,026 on its own, with site protection).
Ducts and lightsReturn ducts and recessed cans are holes. Treat them or the wall won't perform.
Foam panels, egg crates and curtains absorb sound in the room; they don't block it through the wall. Soundproof paint is a coating, not a wall: the one lab report we found showed 3 points (STC 39 to 42) with both sides of a steel-stud wall coated.
What cost guides publish
HomeGuide, HomeAdvisor, Fixr$10 to $30 a sq ft. Most don't say whether that's per floor foot or per foot of wall.
HomeAdvisor$1,022 to $2,700 a room, $1,861 average.
FixrA bedroom at $1,300 to $6,000.
Clamp, ballpark price range$5,936 to $21,092 for a 12x14 bedroom, walls and ceiling.
Not in a one-family house. The American Wood Council notes the model codes set sound ratings only for assemblies that separate dwelling units from each other and from public areas.
Where ratings apply
Apartments and condos (IBC)STC 50 walls and floors (NNIC 45 field tested), IIC 50 floors (NISR 45 field tested) between units; 2021 IBC Section 1206.
Townhouses and two-family (IRC)STC 45 walls and IIC 45 floors, in Appendix AK of the 2021 IRC (Appendix BG in the 2024 IRC), only where adopted.
One-family houseNo requirement. Pick a target with the customer instead.
A 12x14 bedroom with 8 ft ceilings under a family room. All four walls and the ceiling get clips, hat channel, sound batts, two layers of 5/8 in. drywall with Green Glue, sealant and putty pads at four outlets, and the door gets a solid-core slab and seals. Clamp priced it at $10,546 job cost before markup.
| Line | Cost | Hours |
|---|---|---|
| Protection and demo584 sf of drywall off, haul-off | $1,334 | 10.2 |
| Sound batts584 sf of wall and ceiling cavity | $1,226 | |
| Clips and hat channel584 sf of wall and ceiling | $2,453 | |
| Two layers of 5/8 in.1,168 sf hung, the face finished | $2,713 | 38.3 |
| Green GlueBetween the layers, 2 tubes a sheet | $701 | |
| Sealant and putty padsEvery layer's perimeter, 4 outlets | $586 | 7.9 |
| Solid-core door and sealsSlab on the existing frame, gasket, automatic bottom | $726 | 3.9 |
| Prime and paint584 sf | $807 | 8.4 |
The job
Every line priced
The job in Clamp, and the estimate it prices: $10,546 at job cost, by trade. Illustration of the Clamp app.
What it means
Soundproofing, priced by method
Clamp reads the wall or ceiling and the method from the words and prices each layer, clip, tube and seal with labor hours on each line.
Decouple it, add mass, damp it, seal it. Anything less is an absorber.
Questions
How much does it cost to soundproof a room?
A 12x14 bedroom, walls and ceiling with the door replaced and sealed, is $4,566 job cost before markup in Clamp's catalog with a damped layer over the existing drywall and $10,546 rebuilt on clips, a ballpark price range of $5,936 to $21,092. A 10x10 office, walls only, is $2,987 to $6,245 job cost before markup. Cost guides publish $10 to $30 a sq ft.
How much does it cost to soundproof a wall per square foot?
For a 112 sq ft wall in Clamp's catalog: $9 a sq ft job cost before markup for a damped layer over the existing drywall, $18 for resilient channel and $21 for clips and hat channel, with batts and two layers of 5/8 in. drywall.
Does soundproofing insulation work?
Not on its own. National Gypsum's tests of a 2x4 wall with 5/8 in. drywall each side rated STC 35 empty and 36 with batts, and NRC measured insulated 2x4 walls at 33 to 34. Once one side is decoupled on channel, USG's tests show the same batts adding about 10 points (STC 49 to 59).
Resilient channel vs sound clips: which is better?
Clips with hat channel are more forgiving. Resilient channel works when installed right, but channel products vary by 12 points and screws into the studs cost up to 8 (Veneklasen, 2010). Lab tests put clip walls at STC 53 to 64.
Does acoustic foam soundproof a room?
No. Foam absorbs echo inside the room; it doesn't block sound through the wall. Blocking takes mass, decoupling, damping and sealed gaps.
Sources & provenance
- Clamp's catalog, priced by script Clamp (research)
- Gypsum Board Walls: Transmission Loss Data (IRC-IR-761) National Research Council Canada (official source)
- Sound Control Manual: Sound Construction, System Selection, Technical Notes USG (research)
- Quantitative comparisons of resilient channel design and installation in single wood stud walls LoVerde and Dong, Veneklasen Associates (ICA 2010, Sydney), via ClarkDietrich (research)
- Sound clip wall test, WEAL TL18-201 ClarkDietrich / Western Electro-Acoustic Laboratory (research)
- IsoMax testing results Kinetics Noise Control (research)
- Selecting GA-600 Assemblies: a practical guide to STC targets and sound control tradeoffs Walls & Ceilings (research)
- The SoundBook National Gypsum (research)
- Green Glue laboratory test listings Acoustical Surfaces (research)
- Acoustic Ratings: Interior Doors JELD-WEN (research)
- Coat of Silence evaluation, one- and two-sided steel stud gypsum wall DLM Enterprises, via Acoustical Surfaces (research)
- STC doors in the wild iDigHardware (Allegion) (research)
- How to Soundproof: Acoustic Foam Does Not Block Sound Acoustical Solutions (research)
- Cost to Soundproof a Room HomeGuide (research)
- How Much Does It Cost to Soundproof a Room in 2025? HomeAdvisor (research)
- Cost to Soundproof a Room Fixr (research)
- Do U.S. model building codes contain sound transmission requirements for exterior walls? American Wood Council (official source)
- Did You Hear That? AWCI Construction Dimensions (research)
- 2024 IRC FlashCards (sample) International Code Council (official source)
- Formal interpretation: NCRC Appendix AK102, sound attenuation materials North Carolina Office of State Fire Marshal (official source)
- IBC Section 1206 Sound Transmission Requirements Explained Commercial Acoustics (research)
- STC vs OITC: Understanding Interior vs Exterior Sound Ratings Commercial Acoustics (research)