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Acoustic Specialist
4.3/5 from 27+ reviews

Noise Problems

Acoustic sealed units for noise-affected windows. When your customer lives on a busy road, near a railway, or under a flight path, standard double glazing isn't enough. We manufacture acoustic sealed units with asymmetric glass configurations and specialist interlayers — reducing noise by up to 45dB without replacing the frames.
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4.3/5 rating from 27+ reviews
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Noise reduction depends on glass mass, asymmetry, and interlayer type. Here's how to specify the right acoustic configuration for every situation.

Expert Glazing, Done Right

We're not a national call centre. We're local glaziers who take pride in every job.

Asymmetric Pane Configuration

Different thickness panes break up sound waves more effectively than matched panes. A 6.4mm laminated outer + 4mm inner performs significantly better than standard 4-4 configuration — even at the same overall unit thickness.

Acoustic Laminated Glass

PVB or specialist acoustic interlayer between glass plies absorbs sound energy. Acoustic laminated glass (6.4mm or 6.8mm) provides 3-5dB additional noise reduction compared to monolithic glass of the same weight.

Wider Cavity Options

A larger air gap between panes improves low-frequency noise reduction. 16mm, 20mm, and 24mm cavity widths available — wider cavities perform better against bass-heavy traffic noise.

Thermal + Acoustic Combined

Every acoustic unit can include Low-E coating and argon fill at no performance penalty. Solve noise and thermal problems in one replacement — warm, quiet glass.

10-Year Warranty

Every acoustic unit carries our 10-year warranty against seal failure and gas retention. Acoustic performance guaranteed for the life of the unit.

Different noise sources require different glass configurations. Identifying the noise type helps you specify the most effective unit.

Signs Your Double Glazing Needs Attention

Catching problems early saves money and prevents bigger issues. Here are the telltale signs your windows need professional attention.

⚠️ Noticed any of these issues? Do not wait - small problems become expensive repairs. Get a free assessment today.

Expert Knowledge

Noise Reduction Glass: Specification Guide for Trade

How Glass Reduces Noise

Sound passes through glass primarily via forced vibration — the sound wave hits the outer pane, makes it vibrate, and the vibration transfers to the air cavity, then to the inner pane, and into the room. Reducing noise means interrupting this chain at every step:

Mass: Heavier glass vibrates less. A 6.4mm laminated pane has more mass than a 4mm monolithic pane, so it transmits less sound energy.
Asymmetry: Different thickness panes resonate at different frequencies. Matched 4/4 panes amplify each other's resonance. Mismatched 6.4/4 panes break the resonance coupling.
Interlayer: Acoustic PVB interlayer in laminated glass absorbs sound energy as it passes through the laminate. Specialist acoustic interlayers (e.g. Saflex Acoustic) provide 3-5dB additional reduction over standard PVB.
Cavity width: Wider air gap reduces low-frequency sound transmission. 12mm cavity is minimal; 16mm is standard; 20mm+ is premium for low-frequency noise.

Typical Configurations

Good (34-36dB Rw): 6.4mm laminated / 12mm air / 4mm — fits most frame profiles, significant improvement over standard 4/12/4.
Better (37-39dB Rw): 6.4mm acoustic laminated / 16mm argon / 4mm — the most popular trade specification for road noise.
Best (40-45dB Rw): 6.8mm acoustic laminated / 20mm argon / 6mm — for railway, aircraft, or heavy traffic. Maximum noise reduction in a double glazed unit.

Managing Customer Expectations

Be honest about what glass can achieve. Sealed unit replacement reduces airborne noise through the glass area. It does not address noise entering through the frame, trickle vents, walls, or roof. For extreme noise environments, discuss secondary glazing as a complement — the combination of primary + secondary glazing can achieve 50dB+ reduction.

Every 10dB reduction is perceived as roughly halving the noise. This is the most powerful selling point for acoustic glass. Standard DG gives 28-30dB reduction; acoustic laminated gives 37-45dB. That's a perceived 2× to 3× reduction in noise level. Frame it this way to the customer: 'The noise from that road will sound like it's 2-3 times further away.' That's what sells the job.

Assess the noise, specify the glass, order the units. We handle the manufacturing — you deliver the quiet.

How Our Service Works

From first contact to finished job, we make the whole process straightforward and stress-free.

Assess the Noise Source

What type of noise? How severe? Continuous or intermittent? This determines the glass configuration. A busy road needs different glass to an aircraft flight path.

Measure the Windows

Width, height, overall thickness at the glass line. Note the frame type and maximum rebate depth — this determines the maximum unit thickness you can fit without frame modification.

Specify the Configuration

We'll recommend the optimal pane sizes, interlayer type, and cavity width for the noise source. All acoustic units include Low-E + argon as standard — no thermal penalty.

Order, Fit, Transform

Standard acoustic sizes dispatched within 5-7 working days. You fit them — same process as any sealed unit replacement. The customer notices the difference from the first window.
From standard acoustic upgrades to maximum noise reduction specifications — every configuration manufactured to order.

What We Can Help With

From quick repairs to complete replacements, we handle all residential and commercial glazing needs.

Standard Acoustic (34-36dB)

6.4mm laminated / 12-16mm / 4mm. The entry-level acoustic upgrade for moderate road noise. Significant improvement over standard DG at modest additional cost.

Enhanced Acoustic (37-39dB)

6.4mm acoustic laminated / 16mm argon / 4mm. Our most popular noise reduction specification. Handles busy roads, urban noise, and most commercial noise sources.

Maximum Acoustic (40-45dB)

6.8mm acoustic laminated / 20mm argon / 6mm. For railways, aircraft, motorways, and industrial noise. The highest performing double glazed unit we manufacture.

Acoustic + Energy

Any acoustic configuration with Low-E coating and argon fill. Solve noise AND thermal problems in one unit. No compromise on either performance metric.

Acoustic + Privacy

Acoustic laminated glass with obscure finish. For bathrooms and bedrooms facing noise sources — quiet AND private.

Acoustic for Doors

Heavier acoustic configurations rated for door use. Full-length and half-length door panels with noise reduction and safety compliance.

Not sure what you need? No problem - we will assess and advise. No obligation, no pressure.

Trusted by Tradespeople & Homeowners

What Our Customers Say

4.3 ★ from 27 Google reviews

  • 15+

    Years in Business

  • 10,000+

    Sealed Units Supplied

  • 27+

    Google reviews

  • ★★★★★
    Huge shout-out to Ollie and the team! ⭐⭐⭐⭐⭐ ​Our patio door went from being completely stuck and impossible to lock to sliding like a dream. Ollie diagnosed the issue (collapsed wheels) and his team squeezed us in despite a packed schedule. ​The difference is night and day—it literally feels like it’s sliding on air now. If you’re looking for reliable, expert servi...

    Susan Passmore

  • ★★★★★
    We had glass panes and hinges replaced throughout the house and a new set of french doors. Ollie and everyone that came to fit were friendly, professional, tidy and considerate. The work has been carried out to excellent quality - especially the french doors which look fantastic.

    Lucy Bennett

  • ★★★★
    Complex issue with a broken non-standard hinge on 1st floor window. Ollie was the only one of over 10 other firms I contacted who said they could do the job. It took a while, but Ollie managed to source a replacement part and completed the job to a high standard. Very happy with the work done and have asked him to do another job following the good experience.

    Dave Edwards

Common questions about specifying and ordering noise reduction sealed units.

Frequently Asked Questions

Everything you need to know about our double glazing repair and replacement services across the South West.

  • Standard DG gives 28-30dB Rw reduction. Our acoustic range delivers 34-45dB Rw depending on configuration. Every 10dB reduction is perceived as roughly halving the noise level. The difference between standard and acoustic glass is dramatic and immediately noticeable.

  • In most cases, yes. Our most popular acoustic unit (6.4mm laminated / 16mm / 4mm = 26.4mm overall) fits any frame designed for standard 24mm or 28mm units. For maximum acoustic configurations (34mm+), check your frame's rebate depth before ordering.

  • No — all our acoustic units include Low-E coating and argon fill as standard. You get full thermal AND acoustic performance with no compromise. A good acoustic unit is also an excellent energy-efficient unit.

  • Glass upgrade alone may not be sufficient if walls are very thin (e.g. single-skin extension). Be honest with the customer — glass handles airborne noise through the glazed area. For extreme cases, recommend acoustic glass + wall insulation, or acoustic glass + secondary glazing for maximum effect.

  • Yes. Standard laminated glass uses standard PVB interlayer (primarily for safety). Acoustic laminated uses a specialist interlayer (e.g. Saflex Acoustic) that absorbs sound energy more effectively — typically 3-5dB additional reduction at the same glass thickness. Always specify acoustic interlayer for noise jobs.

  • 5-7 working days for standard acoustic configurations. Specialist sizes or maximum acoustic specifications may take 7-10 days. Rush orders available — call our trade team to discuss.

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