A few years ago, I managed a hotel upgrade where we installed soundproof doors. Turns out, they weren’t soundproof at all.
That job made me take acoustic doors seriously because bad ones can damage a business’s reputation fast.
Since then, I’ve tested doors on-site, requested third-party lab reports, talked to hotel maintenance teams, and tracked supplier response times. I’ve also checked how well doors performed six months to a year after install.
In this article, you’ll see seven trusted acoustic door manufacturers. Whether you run a villa or a B&B, this review helps you pick smart and avoid common pitfalls.
Sound issues don’t fix themselves, you need the right door from the start.
So, let’s jump in!
Quick Comparison Chart
Choosing a supplier can feel overwhelming, right? That’s why I’ve laid it out in one easy-to-scan table, so you can get your bearings before jumping into the full breakdown.
| Manufacturer | Location | Product Types | Best For | Not Ideal For |
| IAC Acoustics | UK / Global | Steel doors, vision panels, bullet/fire rated | Control rooms, government, high-STC projects | Light commercial or budget-driven builds |
| Krieger | USA (California) | Steel, wood, RF-shielded, blast-resistant | Secure sites, media, tech facilities | Design-led projects with lower specs |
| Vallisco | Building 1, No. 1926, Cao An Highway, Jiading District, Shanghai, China 201824 | Aluminum, glass sliding, steel, acoustic doors | Hotels, villas, large commercial builds | One-off residential projects |
| Clark Door | UK | Sliding, hinged, pivot, fire-rated doors | Auditoriums, museums, R&D centers | Fast-turnaround or off-the-shelf needs |
| Thermostop | Canada | Sectional, acoustic, cold storage, bulletproof | Labs, cold chain, industrial noise | Luxury or design-heavy spaces |
| Noise Barriers LLC | USA (Illinois) | Swing, sliding, security, Alexis doors | Studios, SCIFs, conference rooms | Oversized or fire-rated projects |
| Envirotech | India | Sliding, wood, metal, fire-rated, blast-resistant | Auditoriums, offices, institutional buildings | Extremely high STC requirements |
Now that you’ve got the overview, let’s take a closer look at each manufacturer, what they do well, and what you should watch for.
1. IAC Acoustics
IAC Acoustics was founded in 1949 and has over 70 years of experience in noise control engineering. They operate globally, with manufacturing and testing facilities across the US, UK, and other locations. What I appreciate about IAC is that they focus heavily on third-party testing, and they meet key industry standards like ISO 9001 and ASTM E90 for acoustic performance.
Their acoustic doors are widely used in government buildings, studios, hospitals, and industrial sites. If you’re managing any project where sound matters, you’ll probably run into their products sooner or later. I’ve seen their doors installed in control rooms and they’ve held up well over time.
Product
- Noise-Lock® and Super Noise-Lock® Doors: These high-performance steel doors come in single or double-leaf designs with STC ratings from 51 to 64. They’re suited for control rooms, testing labs, and broadcast studios.
- Flexible Sizing: IAC offers both standard and made-to-order sizes to fit project-specific openings. That’s useful if you’re retrofitting an older space.
- Range of Finishes: Choose from primed steel, stainless, or decorative finishes like wood veneer. This helps your acoustic door match the overall design.
- Acoustic Vision Panels: Optional glass panels are available without compromising acoustic performance. Great for rooms that need both isolation and visibility.
- Fire- and Bullet-Resistant Options: Select models meet fire and security ratings. Useful if you’re building for government or institutional use.
Research and Development
- In-House Test Facilities: IAC verifies all designs in its own accredited labs. They measure actual field performance, not just theory.
- STC Ratings Up to 64: Their team pushes for top sound isolation standards, making them a strong fit for acoustic-sensitive projects.
- Customized Acoustic Solutions: They’ll adjust materials, cores, and seal types for unique soundproofing challenges. I’ve seen this done well in music venues.
- Glass and Frame Integration: R&D covers full assemblies, including window inserts and frames. This keeps things consistent during installation.
- Innovation in Door Seals: Their engineers have refined sealing systems that stay effective even after years of daily use. Especially valuable in high-traffic areas.
Contact Info
- Website: https://www.iacacoustics.global/
- Headquarters: Winchester, Hampshire, UK
- Phone: +44 (0)1962 873000 (UK office)
- Email: info@iac-acoustics.com
Final Thoughts
IAC Acoustics is best for businesses that need high-rated, tested acoustic doors for mission-critical applications like labs, control rooms, or government projects. But if your needs are light commercial or budget-driven, their doors may come with higher lead times and pricing than other options.
2. Krieger Specialty Products
Krieger Specialty Products was founded in 1936 in Pico Rivera, California. I like that you can tell they built their reputation on high-spec door systems for demanding projects. You’ll find their products in secure government facilities, broadcast studios, and power plants.
I’ve worked with engineering teams who trust their doors for tough acoustic challenges. Krieger was the first to hit STC 51 and STC 55 in a standard 1¾” thick door without a raised sill. Now part of Allegion, they combine family-owned values with corporate scale.
Product
- Acoustical Door Assemblies: Their KriegerSonic line hits up to STC 55 in steel doors with reliable lab-backed sound control. Hollywood studios, data rooms, and labs often specify these.
- Bullet‑ and Blast‑Resistant Doors: They build doors to meet forced-entry and ballistic standards like SD‑STD‑01.01. This gives strong protection in sensitive sites.
- Radio Frequency Shielded Assemblies: RF-shielded doors block emissions inside or out. They follow NSA, IEEE, and military testing protocols for Faraday cage enclosures.
- Wood Acoustical Doors: Their wood doors achieved STC 47 in 1¾” thickness back in 1992. These balance aesthetics and certified performance.
- Custom Finish Options: They offer painted, veneer, laminate, stainless, and special finishes to suit client design. That helps maintain the look of upscale interiors.
Research and Development
- Acoustic Milestone Innovations: Krieger was first to break STC 51 in thin doors and later hit STC 55. They explore new performance thresholds.
- Lab‑Accredited Testing: Every door model is tested to ASTM E90 and E413 in certified labs. Results support specification documents.
- RF Shielding Research: Their engineers study field seal effectiveness and material choices. Results follow strict NSA and IEEE standards.
- Hybrid Performance Development: Recent work includes doors rated for both STC 51 and RF attenuation of 40 dB. They can also deliver blast resistance up to 5 psi pressure.
- Continuous Field Feedback: I’ve seen them collect data from installed clients to improve durability and seal wear over time. They offer warranties based on real conditions.
Contact Info
- Website: https://www.kriegerproducts.com/
- Headquarters: Pico Rivera, California, USA
- Phone: +1 (562) 695‑0645
- Email: scompiani@kriegerproducts.com
Final Thoughts
Krieger works well when your project needs certified acoustic performance plus security or RF shielding in one package. But if your project is simpler or more design-led without stringent testing needs, their custom solutions may feel more expensive.
3. Vallisco
Vallisco became an independent global brand in 2024 after years of experience under Qeeka Home, which has served the construction supply industry since 2007. Based in Shanghai, China, they specialize in doors and windows for villas, hotels, and commercial buildings across Southeast Asia and Europe.
The company focuses on factory-direct supply and modern aluminum systems designed to meet both acoustic and energy standards. Their products are often specified in boutique builds and multi-unit properties. I’ve seen their solutions used in hotel developments where custom size and finish mattered just as much as durability.
Product
- Aluminum Alloy Doors: These are designed with thermal breaks and energy-saving glass inserts. They work well in spaces that need visual openness and insulation.
- Acoustic Door Systems: Vallisco offers flush or pivot models with mid-level sound ratings, around STC 34–42. These meet EN ISO testing standards and are suited for light commercial or hospitality use.
- Glass Sliding Systems: Their large-format sliding doors pair well with acoustic frames for exterior transitions. Great for hotels or villas that need wide openings.
- Steel Entry Doors: Made for main entrances, these are available with acoustic, thermal, and fire-rated cores. They balance performance with a clean exterior look.
- Custom Door Packages: Vallisco builds full door packages to spec, sizing, hardware, finish, and frame types. This helps contractors meet varying client needs with a single supplier.
Research and Development
- System-Based Design: Their engineers focus on how frames, panels, and seals work together. This reduces air leakage and improves overall acoustic and thermal control.
- Hybrid Door Technology: Vallisco develops hybrid models that combine sound isolation, fire resistance, and insulation. These are useful in mixed-use buildings.
- Finish Durability Testing: Their team runs scratch, weather, and corrosion tests to maintain long-term surface quality. Helps with builds in coastal or humid zones.
- Client-Driven Prototyping: They frequently update or adjust models based on input from developers. This allows quicker response to design trends.
- Automation Integration: Some door systems are being adapted for smart lock or motorized openers. Useful for hotels or villas with tech-forward goals.
Contact Info
- Website: https://www.vallisco.com/
- Headquarters: Building 1, No. 1926, Cao An Highway, Jiading District, Shanghai, China 201824
- Phone: +86 185 0213 6587
- Email: kelly@vallisco.com
Final Thoughts
Vallisco is a great fit for builders who want modern, design-forward door systems with consistent quality across large projects. But if you’re just looking for a single acoustic door for a home, they don’t really produce standalone residential units.
4. Clark Door
Clark Door was established in 1873 and now operates from its headquarters in Carlisle, Cumbria, UK. I respect their long history of over 150 years in specialist door engineering and innovation. They export to more than 50 countries and serve industries like film, music, theatres, and R&D facilities.
You and your team will benefit from working with a company that combines deep US and UK heritage with modern engineering. Their systems are installed in cultural venues where acoustic performance is mission-critical. Their reputation follows decades of testing and tailor-made projects.
Product
- Horizontal Sliding Acoustic Doors: These reach up to Rw 60 and don’t require floor tracks. That’s great for areas like studios or museums where space and appearance matter.
- Vertical Sliding Acoustic Doors: A good solution where side clearance is tight, these reach Rw 58 and can include up to 2-hour fire ratings. Useful for corridors or control rooms.
- Steel Hinged Acoustic Doors: These heavy-duty doors are available with high acoustic ratings and optional fire protection. Designed for utility rooms and technical areas.
- Oversized Pivot Doors: Designed for openings as large as 20 m wide, these meet structural and acoustic demands in industrial or auditorium settings.
- Acoustic Fire-Rated Doorsets: Dual-rated units combine sound control and fire performance in one tested system. This reduces complexity during planning and inspection.
Research and Development
- New R&D Centre in Carlisle: Opened in 2023, this £3 million facility helps simulate real-world performance and supports product testing.
- Patent Innovation: Clark has developed several seal and door automation patents to improve consistency and ease of use.
- Long-Term Acoustic Testing Data: Their internal library holds decades of test reports, which helps engineers validate designs faster.
- Smart Controller Integration: Some doors now feature programmable control systems for improved seal engagement and safety.
- Consultant Support Model: They work closely with architects and acoustic engineers during pre-build planning to avoid rework.
Contact Info
- Website: https://www.clarkdoor.com/
- Headquarters: Unit F Central, Kingmoor Park, Carlisle, Cumbria, CA6 4SD, United Kingdom
- Phone: +44 (0)1228 522321
- Email: mail@clarkdoor.com
Final Thoughts
Clark Door is a strong choice for projects that involve specialized requirements like large openings, integrated fire ratings, or unique layouts. If your timeline is tight or you need quick off-the-shelf solutions, their engineered-to-order model might slow things down.
5. Thermostop Inc.
Founded in 1984, Thermostop is based in Saint‑Hubert, Quebec, and focuses on high-performance sectional and specialty doors. They’re known in North America for combining thermal insulation, acoustic control, and structural durability. Their doors are commonly used in warehouses, food processing plants, labs, and industrial buildings.
I heard from a project manager that Thermostop doors performed well under both freezer conditions and machine noise environments. That kind of feedback makes them a good option if your team handles demanding builds. Their products are clearly designed with practical site challenges in mind.
Product
- SoundSentry STC 47 Acoustic Door: This vertical sectional door offers high sound isolation while handling large openings. It’s used in labs, studios, and engine test rooms.
- Cold Storage Sectional Doors: With insulation values up to R‑32, these doors are ideal for refrigerated zones. They also contribute to moderate noise reduction.
- SoundEntry STC 40 Entrance Door: A hinged model for areas where some sound control is needed but space is tight. Great for maintenance corridors or side rooms.
- Breakaway Impact Doors: These reduce repair costs by releasing under impact and resetting easily. Designed for heavy equipment zones.
- Bullet-Resistant Sectional Doors: These come in UL-752 Levels 1 through 8. Useful for controlled access sites or sensitive material storage.
Research and Development
- ASTM Acoustic Certification: All acoustic doors are tested under ASTM E90 and E413. That gives your team solid data when submitting specs.
- Dual-Performance Engineering: They develop doors that combine thermal protection and acoustic ratings in one assembly. Especially useful in food and pharmaceutical environments.
- Durability Testing: Panels and hardware are tested for impact, corrosion, and cycle life. Helps reduce long-term maintenance.
- Hardware Innovation from Field Use: Updates to rollers, seals, and hinges come from real use cases. Their changes are focused on job site reliability.
- Coating Validation: Their finishes are tested for performance in wet, coastal, and industrial conditions. Good fit if your location has harsh exposure.
Contact Info
- Website: https://thermostop.com/
- Headquarters: 3775 Losch Blvd, Saint‑Hubert, Quebec, Canada
- Phone: 1‑866‑678‑0123
Final Thoughts
Thermostop fits best where acoustic control needs to share space with insulation, durability, or cold-chain requirements. But if your project calls for architectural detailing or luxury styling, their lineup might feel overly industrial.
6. Noise Barriers LLC
Noise Barriers LLC was founded in 2000 and is based in Lake Forest, Illinois. They are a part of the Catalyst Acoustics Group and serve a wide range of sectors including healthcare, government, education, and media. The company operates under ISO-certified practices and specializes in engineered acoustic doors, windows, and enclosures.
What impressed me most is how their products are delivered pre-assembled, which saves valuable time on-site and reduces coordination issues. Their team combines technical knowledge with hands-on support, making them easy to work with on complex acoustic builds. You and your team will appreciate how well their systems integrate into sound-sensitive environments.
Product
- QuietSwing® Architectural Doors: These pre-hung doors offer acoustic ratings up to STC 54 and arrive with seals, hinges, and glazing factory installed. They are ideal for venues like studios, SCIFs, and conference rooms.
- QuietSlide® Horizontal Sliding Doors: This motorized swing door achieves STC 51 and includes six-way adjustable seals. Perfect for exterior transitions in hotels, theaters, or test chambers.
- QuietSwing Alexis Door: A single-leaf acoustic door with concealed hinge for clean architectural finish and STC 51 performance. Designed for executive suites, boardrooms, or performance halls.
- Security and Specialty Doors: Options include bullet-resistant, pressure-rated, or access hatches built to tight performance specs. Useful for secure mechanical rooms or institutional applications.
- Customized Panel Systems: They can deliver doors with glass vision panels or wood veneer finishes while maintaining tested acoustic performance. This helps you blend into interior design without sacrificing function.
Research and Development
- Factory-Assembled Acoustic Testing: Their full door assemblies, including seals and hardware, are NVLAP-tested for acoustic performance. This provides repeatable performance you can rely on.
- Cam-Lift Seal & Hinge Innovation: Alexis models use patented concealed cam-lift hinges that deliver a clean swing profile and minimal opening force. This feature elevates user experience without compromise.
- Performance Range Extensions: Their R&D team has expanded available STC ratings from 45 through 56, offering adaptable door thickness options for different applications.
- Integration with Enclosures & Windows: They coordinate door systems with QuietLite windows and QuietMod test enclosures to create holistic acoustic environments.
- Field Installation Feedback Loop: They collect installer and owner feedback to refine frame details, seal durability, and field adjustments, this improves real-world reliability over time.
Contact Info
- Website: https://www.noisebarriers.com/
- Headquarters: Lake Forest, Illinois, USA
- Phone: 847‑843‑0500
Final Thoughts
Noise Barriers is a strong match for projects focused on acoustic control with clean aesthetics and quick installation. But if your building needs oversized doors, industrial ratings, or fire certifications, you may find their catalog more limited.
7. Envirotech Systems Limited
Envirotech Systems Limited was established in 2007 and operates out of Noida, India. They’ve completed over 5,000 projects across commercial, institutional, and industrial sectors. I’ve been following their work in government buildings and studios for years and noticed how they balance compliance with solid acoustic performance.
Their solutions are often seen in auditoriums, offices, and secure facilities where noise control matters. They’re ISO 9001, 14001, and 45001 certified and are recognized for incorporating IGBC and GRIHA green building standards. This makes them a solid pick if your project has both acoustic and environmental requirements.
Product
- Sliding Folding Acoustic Partitions: Ideal for multi-use rooms and conference areas that need flexible space management with noise separation.
- Wooden Acoustic Doors: Built with solid-core panels and tested for up to 60 dB noise reduction, suitable for performance halls and libraries.
- Acoustic Cum Fire Doors: These dual-rated doors help save wall space and meet both safety and noise codes in one assembly.
- Metal Soundproof Doors: Steel-based units designed for control rooms, recording booths, and plant facilities.
- Blast-Resistant Acoustic Doors: Used in military or industrial settings that need sound isolation and impact resistance.
Research and Development
- NPL-Certified Testing: They test their doors at the National Physical Laboratory in India, which backs up their acoustic ratings.
- Project-Based Engineering: Their R&D adapts designs based on field performance, especially in high-traffic institutional buildings.
- Focus on Green Building Standards: They continue to refine products that align with IGBC and GRIHA expectations.
- Advanced Seal Development: Acoustic seal performance is a priority in their latest product iterations.
- Thermal-Acoustic Integration: Several products address both temperature control and sound insulation for energy-conscious designs.
Contact Info
- Website: https://www.envirotechdoors.com
- Headquarters: Noida, Uttar Pradesh, India
- Phone: +91 93110 11131
- Email: sales@envirotechltd.com
Final Thoughts
Envirotech is a great option if your business values both acoustic control and green building alignment in one reliable vendor. But if you’re dealing with very strict acoustic specs, their mid-range ratings alone might not go far enough.
Conclusion
I made the mistake of trusting a spec sheet over real performance. It did not turn out well. Now I rely on test results and proven installs, and that’s how this list came together.
These seven companies cover everything from high STC ratings to modern design. Each one works for different project needs.
If you’re still comparing, scroll back and take another look.
And if you want a door partner who can handle full project packages with style, choose Vallisco.
Contact us today and we’ll help you figure it out!
