Soundproofing UK · Building Regs Part E Compliant Specialists
Reduce noise with a vetted soundproofing specialist who builds to Building Regulations Part E. Treating a single party wall starts from £900, with full-room and floor/ceiling acoustic systems available for flats and conversions. Compare itemised quotes before you book.
From a single noisy party wall to a full room or an acoustic floor/ceiling system between flats — vetted specialists building to Building Regulations Part E for every job.
Single Party Wall
One Wall
£900 – £2,000
Treating one party or stud wall against a noisy neighbour. An independent or resilient build-up cuts airborne noise like voices and TV. The most common starting point.
Treating the walls and ceiling of a whole room — a bedroom, home office or studio. A fuller build-up gives a step change in quiet. Allow several days plus making good.
A complete acoustic floor or ceiling system, typically between flats. Tackles both airborne and impact noise such as footsteps, and is built to Part E where a conversion requires it.
A single wall, a full room or a floor/ceiling between dwellings
Noise type
Varies
Impact noise (footsteps) needs more than airborne noise (voices, TV)
Build-up thickness
+£200 – £1,500
Thicker independent systems perform better but take more room
Part E testing
+£300 – £900
Flat conversions need pre-completion acoustic testing to pass
Making good
Varies
Re-plastering, skirting, sockets and decoration after the acoustic work
Treating a single party wall usually sits inside the £900–£2,000 range, and a full room £2,500–£6,000. Floor/ceiling systems between flats run higher. A full soundproofing cost breakdown is in our cost guide.
Soundproofing costs at a glance — 2026
Figures from this page's 2026 cost cards and cost-driver table.
Source: BestBuilders 2026 quote data · 519 UK towns
Why Choose BestBuilders
3 Steps to a Part E Soundproofing Quote
1
Tell us about the noise
60-second form. Which room, the type of noise (voices, TV or footsteps), whether it is a flat conversion and your postcode. No phone, no jargon.
2
Get matched to specialists
Up to 3 vetted soundproofing specialists who build to Building Regulations Part E. We pre-screen on standards and reviews.
3
Compare & book
Itemised quotes within 24 hours. Compare the system, the build-up thickness and any acoustic testing before you book.
Types of Noise
Airborne vs Impact Noise (2026)
Getting the right result starts with the type of noise. The two behave differently and need different solutions.
🗣️ Airborne noise
Voices, TV and music travel through the air and through walls. An independent or resilient wall build-up with mass and a cavity cuts airborne noise very effectively.
👣 Impact noise
Footsteps, dropped objects and moving furniture travel through the structure. Resilient layers in a floor or ceiling system absorb the vibration before it reaches the room below.
🚪 Flanking paths
Sound finds the weak points — around windows, through floors and via shared joists. A specialist surveys these flanking paths first, because they set the practical limit on the result.
📉 Reduce, not eliminate
Good soundproofing dramatically reduces noise rather than removing it entirely. A survey gives a realistic expectation before you commit to a system.
Part E & Space
Building Regs Part E & the Space Trade-Off
Some work must meet Building Regulations Part E, and every system takes a little room — here is what to plan for.
📜 Building Regs Part E
New flat conversions and changes of use must meet Part E, which sets minimum sound-insulation values and usually requires pre-completion acoustic testing. Our specialists build to Part E and arrange testing where it is required.
🏠 Existing rooms
Soundproofing an existing room in your own home for comfort does not need approval, but a specialist will still build to Part E standards for the best result.
📏 Wall thickness trade-off
An independent wall system typically takes 75mm to 125mm off the room on the treated side, and a ceiling build-up drops the height by 100mm to 150mm. Slimmer high-density systems exist where space is tight, with a small trade-off in performance.
🔍 Survey first
A specialist surveys the room and the flanking paths before quoting, then recommends the right system for airborne or impact noise and the space you have.
Local Soundproofing Specialists
Soundproofing Specialists by Town
Vetted soundproofing specialists who build to Part E across UK towns:
In your area soundproofing a single party wall costs roughly £900 to £2,000, a full room (walls and ceiling) £2,500 to £6,000, and a floor/ceiling acoustic system between flats £5,000 to £12,000. The build-up thickness, the area treated and making good afterwards are the main cost factors.
Only for certain work. New flat conversions and changes of use in your area must meet Building Regulations Part E, which sets minimum sound-insulation values and usually requires pre-completion testing. Soundproofing an existing room in your own home for comfort does not need approval, but a specialist will build to Part E standards anyway for the best result.
It dramatically reduces it rather than eliminating it. A proper independent build-up in your area cuts airborne noise like voices and TV very effectively, and resilient layers tackle impact noise such as footsteps. Flanking paths through floors and windows set the practical limit, which a specialist surveys before quoting.
Yes. The specialists we match you with in your area build to Building Regulations Part E and can arrange pre-completion acoustic testing where a conversion requires it. They will recommend the right system for airborne or impact noise based on a survey of your property.
An independent wall system in your area typically adds 75mm to 125mm off the room on the treated side, and a ceiling build-up drops the height by around 100mm to 150mm. Slimmer high-density systems are available where space is tight, with a small trade-off in performance.
The most effective approach adds mass and decoupling. A common solution is an independent stud wall built just in front of the party wall, filled with acoustic mineral wool and finished with two layers of dense plasterboard on resilient bars. This stops sound transferring through direct contact. For lighter treatment, acoustic panels bonded to the existing wall help, but a decoupled build gives the biggest reduction in neighbour noise.
Resilient bars are metal channels that hold plasterboard slightly off the wall, breaking the sound path while taking up little space, typically under 50mm. An independent stud wall is fully separate from the existing structure and performs better, but eats 100mm or more of room. Choose resilient bars where space is tight, and an independent wall where you need the strongest possible isolation.
Airborne noise is sound travelling through the air, such as voices, TV or music. It's tackled by adding mass and decoupling walls, floors or ceilings. Impact noise is vibration through the structure, like footsteps or furniture dragging. It's treated at source with resilient underlays, floating floors or isolation mounts. Many rooms suffer both, so an effective scheme usually combines the two approaches.
For airborne noise, add mass with acoustic boards and dense mineral wool between joists. For impact noise, a floating floor on a resilient layer or acoustic cradles decouples the walking surface from the structure below. Between flats, a combined system tackles both and typically costs between £5,000 and £12,000. Sealing gaps around skirting and pipe penetrations is essential, as small openings undo much of the work.
Reducing noise from the flat above usually means an independent or resiliently mounted ceiling. This involves fixing a new plasterboard ceiling on resilient bars or acoustic hangers below the existing one, with an acoustic mineral wool layer in the void. It lowers the ceiling by 50 to 150mm but significantly cuts footsteps and voices. Combined floor-and-ceiling treatment between flats generally costs £5,000 to £12,000.
No, this is a common misconception. Acoustic foam panels absorb echo and reverberation inside a room, improving how it sounds for recording or calls. They have almost no effect on sound passing through a wall to or from a neighbour, because blocking transmission needs mass and decoupling, not lightweight foam. To stop neighbour noise you need dense materials and a properly built, isolated wall, floor or ceiling.
It depends on the construction and the existing structure, but a well-built party-wall system can achieve a worthwhile improvement, often making normal speech and TV from next door barely noticeable. No practical treatment removes sound entirely, and low-frequency bass is the hardest to control. A realistic goal is a clear, noticeable reduction rather than silence. An acoustic survey helps set honest expectations before work begins.
Combine isolation with internal absorption. Treat the walls, floor and ceiling with mass and decoupling to stop sound escaping or entering, then add absorbent panels inside to control echo. Solid-core doors with acoustic seals and secondary glazing on windows close the weakest gaps. For a music room, decoupled construction matters most because bass travels easily through lightweight walls and rigid connections to the surrounding structure.
Flanking noise is sound that bypasses the treated wall or floor by travelling through adjoining surfaces, such as a shared floor, ceiling or side wall. It's a frequent reason soundproofing underperforms, because upgrading one wall alone leaves these indirect paths open. A good installer identifies flanking routes and treats junctions, floors and ceilings as needed, so sound can't simply detour around the main barrier.
Ask a BestBuilders expert
Question this page didn't answer?
Ask a specific question about your soundproofing project. A member of our editorial team will answer and publish it (your email is never shown).
Related Guides
Soundproofing Guides & Costs
Planning a soundproofing project? These guides explain costs and your options.
Cookies on Best Builders. We use optional analytics cookies to understand how the site is used and improve it. We only set them if you accept. Strictly necessary cookies are always on. Privacy policy