Become a BASWA Certified Acoustical Plaster Installer
BASWA certifies skilled plasterers, tapers, and carpenters nationwide. Become a certified installer or locate a trained BASWA contractor near your project.
BASWA certifies skilled plasterers, tapers, and carpenters nationwide. Become a certified installer or locate a trained BASWA contractor near your project.
Acoustical comfort is no longer an afterthought in building design. It is a specification requirement, a wellness standard, and increasingly, a competitive advantage for the contractors who can deliver it. BASWA Phon is a Swiss-engineered seamless acoustical plaster system with NRC ratings from 0.80 at 30 mm to 1.00 at 70 mm, tested according to ASTM C423, [1, 2] and every certified installer is backed by hands-on support from BASWA's North American technical team.
Whether you are a plastering contractor looking to expand your service offering, an interior contractor seeking a high-value specialty trade, or a general contractor who wants to deliver acoustical plaster on your next commercial or residential project, BASWA certification is your entry point. View current BASWA products or explore commercial and residential project portfolios to see what is possible.
Noise is a well-documented barrier to how people work and learn. In a survey of 1,078 office workers, nearby conversation increased noise annoyance and reduced self-reported work performance, with stronger effects in open-plan offices than in shared ones. [3]
In educational settings, the stakes are just as clear. ANSI/ASA S12.60 sets maximum background noise levels for permanent classrooms at 35 dBA and maximum reverberation times at 0.6 seconds for classrooms under 10,000 cubic feet, and a revised edition, S12.60-2026, has since been published. [4] Once students arrive, levels climb well above that design target: a study that logged sound in 220 occupied K–12 classrooms found average non-speech noise of about 49 dBA. [5] A 2023 review of classroom acoustic treatment studies found that most reported improvements in students' speech perception, attention, or well-being. [6]
In healthcare, hospitality, performing arts, and multi-family residential construction, architects are increasingly required to specify materials that meet or exceed defined acoustical performance benchmarks. NRC ratings, calculated per ASTM C423, [2] are the standard North American measure for sound absorption. The BASWA Phon system has been independently tested under both A and E mountings using ASTM C423 to reflect actual field installation conditions. [1] The result: contractors certified to install BASWA systems are positioned to win specifications in market segments where acoustical performance is a requirement, not merely a preference.
The BASWA Phon Acoustical Plaster System is built to be installer-friendly and technically complete. Here is what certified BASWA installers experience on every project:
Pre-Installation Support That Reduces Risk
Every BASWA project begins with a pre-installation review of site conditions and construction details. BASWA's North American technical team works directly with installers before the first panel goes up, helping to identify potential challenges and resolve them before they become job-site problems. This level of pre-project engagement is standard on every BASWA project.
Factory-Coated, Sanded Panels with No Lead Time
BASWA Phon panels arrive factory-coated and sanded, ready for adhesive application on-site. The system is designed for efficient installation sequences that allow contractors to maintain project schedules. Because finishes and critical components are made in the USA, delivery timelines are predictable.
Overnight Drying Cycle
Unlike systems that require multi-day drying between coats, the BASWA system is designed for an overnight drying cycle. This reduces total installed timeline, helps contractors meet compressed construction schedules, and reduces the number of return trips required to complete a job.
Trowel-Friendly Coatings and No Seam Telegraphing
BASWA's finish coat is engineered for workability. Trowel-friendly formulations allow plasterers to achieve a consistent, seamless surface with professional results. The system's panel design eliminates seam telegraphing, a common aesthetic failure in seamless finishes and a frequent source of costly remediation work.
Integrated Colors and Custom Finishes
Color is integrated into BASWA's finish coat system, not applied as a secondary paint layer. This simplifies the installation process, maintains acoustic performance integrity, and allows architects and designers to specify BASWA in a wide range of color and texture options. Contractors are not required to coordinate with a separate painting subcontractor after plaster completion.
Variety of System Options to Meet Project-Specific Demands
BASWA offers systems that adhere to stable substrates, like BASWA Phon, BASWA Natural, and BASWA Basic, and a system that mounts directly to drywall grid, BASWA DTG. BASWA Basic offers extra impact resistance. BASWA Phon, BASWA Natural, and BASWA Basic all perform well in high-humidity environments.
Application on Complex Geometry
BASWA Phon and BASWA Natural install seamlessly on flat, curved, domed, and vaulted surfaces. This design versatility gives certified installers the ability to take on high-value architectural projects with complex geometry.
Ongoing Technical Support
On-site troubleshooting support is available from the BASWA North American technical team throughout the life of any project. For a full library of technical bulletins and installation resources, visit the Technical Bulletin Archive and the BASWA Phon Installation Guide.
BASWA certification is not a passive credential. It is an active, hands-on training partnership between BASWA's technical team and the installing contractor. Here is what the process looks like:
Step 1: Selection and Onboarding
Certified installers are selected based on geographic coverage, trade qualifications, and demonstrated craftsmanship. Not every applicant is accepted, which is part of what makes BASWA certification meaningful to architects, designers, and owners. When a contractor is accepted into the program, they join a network that is marketed directly to the architect and design community.
Step 2: On-Site Technical Training
BASWA's dedicated technical support team trains new certified installers directly on the job site through their first installation. This is not a classroom-only certification. Contractors learn the BASWA installation sequence by doing it, with expert guidance available at every step. This model reduces the learning curve substantially compared to trying to interpret an installation manual independently or recall techniques learned in brief classroom settings.
Step 3: Advanced Training and Continuing Education
BASWA supports ongoing contractor development through advanced training modules and continued education programs. Certified installers have access to the Advanced Training for Certified Installers program, as well as BASWA's Continued Education resources that can be applied toward professional development requirements.
Step 4: Inclusion in the BASWA Installer Network
Certified installers in the BASWA North American installer network, throughout the US, Canada, Mexico, Caribbean and Latin America, are shared with architects, general contractors, and owners looking for qualified BASWA installers for their projects. Network inclusion generates project leads and positions certified installers as the preferred source for high-performance acoustical plaster in their region. Contractors in California can see acoustical plaster in California for the spaces and projects the network works on there.
BASWA certified installers work across a wide range of commercial and residential project types where acoustic performance andaesthetic quality are both priorities. Explore the BASWAcommercial project portfolio and the BASWA residential portfolio to see system applications.
• Corporate offices and open-plan work environments wherespeech privacy and noise control are specification requirements
• K-12 and higher education classrooms designed to meetANSI/ASA S12.60 acoustical performance criteria for schools5
• Healthcare facilities where ambient noise reductionsupports patient outcomes and staff performance
• Performing arts centers, recording studios, andmultipurpose auditoriums where precise reverberation control is engineered
• Private residences acoustic comfort and interior finish quality are primary selling features
• Hospitality and restaurant environments wherecontrolled reverberation time creates a more comfortable guest experience
• Houses of worship, civic buildings, and culturalinstitutions with complex architectural geometries
BASWA provides technical resources at every stage of aproject, from pre-bid estimating through post-installation maintenanceguidance.
• Technical Bulletin Archive - installation guidance and system updates
• BASWA Phon Installation Guide.- step-by-step installation reference
• Advanced Training for Certified Installers - continuing professional development
• Technical Data and ASTM Test Summaries - specification-ready performance data
• Product Overview - full BASWA system and component catalog
• Continued Education - learning resources for the full project team
• Document Downloads - specs, details, and submittals
BASWA certification means access to a growing market, a proven system, and a technical support team that is invested in your success on every job. Certified installers benefit from network referrals, on-site training, factory-level product support, and the credibility of a system backed by independent third-party ASTM C423 testing.
Contact the BASWA North America team today to begin the certiificastion process
Contact BASWA to locate a certified installer in your area. For direct technical support or to discuss a current project contact us at info@baswana.com or 855-902-2792.
[1] BASWA acoustic North America. BASWA Phon Test Data Sheet. Acoustic coefficient testing conducted under ASTM C423 by certified third-party laboratories. NRC ratings from 0.80 (30 mm) to 1.00 (70 mm), varying by finish and thickness. Class A fire rating per ASTM E84; mold resistance per ASTM D3273; light reflectance per ASTM E1477. https://www.baswana.com/downloads/test-data-sheet-baswa-phon
[2] ASTM International. ASTM C423: Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method. West Conshohocken, PA: ASTM International. https://www.astm.org/c0423-22.html
[3] Di Blasio, S., Shtrepi, L., Puglisi, G.E., and Astolfi, A. "A Cross-Sectional Survey on the Impact of Irrelevant Speech Noise on Annoyance, Mental Health and Well-being, Performance and Occupants' Behavior in Shared and Open-Plan Offices." International Journal of Environmental Research and Public Health, 16(2) (2019), Article 280. https://doi.org/10.3390/ijerph16020280
[4] Acoustical Society of America. ANSI/ASA S12.60-2010 (R2020): Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 1: Permanent Schools. Melville, NY: Acoustical Society of America, 2010 (reaffirmed 2020). Revised as ASA/ANSI S12.60-2026/Part 1. https://asastandards.org/store-home/
[5] Wang, L.M., and Brill, L.C. "Speech and noise levels measured in occupied K–12 classrooms." Journal of the Acoustical Society of America, 150(2) (2021), pp. 864–877. https://doi.org/10.1121/10.0005815
[6] Mealings, K. "The Effect of Classroom Acoustic Treatment on Listening, Learning, and Well-being: A Scoping Review." Acoustics Australia, 51 (2023), pp. 279–291. https://doi.org/10.1007/s40857-023-00291-y
BASWA Contractors are highly skilled plasterers that are trained by BASWA's technical team on the appropriate steps for installation. The BASWA System's unique characteristics allow it to be seamlessly installed to any wall or ceiling, including flat, domed, and curved spaces.
Connect with our skilled network of certified installers
BASWA's network of certified installers is available throughout the world. Contact the installer in your project location.
