300 Colvin Woods Pkwy
Tonawanda, NY 14150, USA


Danforth is accredited by the following associations and agencies:

American National Standards Institute (ANSI) The American National Standards Institute (ANSI). The Institute oversees the creation, promulgation and use of thousands of norms and guidelines that directly impact businesses in nearly every sector: from acoustical devices to construction equipment, from dairy and livestock production to energy distribution, and many more. ANSI is also actively engaged in accrediting programs that assess conformance to standards – including globally-recognized cross-sector programs such as the ISO 9000 (quality) and ISO 14000 (environmental) management systems.
NSF International NSF International is an independent, not-for-profit organization that provides standards development, product certification, auditing, education and risk management for public health and the environment. Manufacturers, regulators and consumers alike look to NSF International for the development of public health standards and certification that help protect the world’s food, water, health and consumer products.
National Air Filtration Association (NAFA) The National Air Filtration Association (NAFA) is a dynamic, non-profit trade association. NAFA members include air filter and component manufacturers, sales and service companies, and HVAC and indoor air quality professionals across the United States and in several foreign countries. NAFA is comprised of individuals and companies engaged in the sale, service and manufacture of the air filtration products.
American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) The American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), founded in 1894, is an international organization of over 50,000 members. ASHRAE fulfills its mission of advancing heating, ventilation, air conditioning and refrigeration to serve humanity and promote a sustainable world through research, standards writing, publishing and continuing education.
Controlled Environment Testing Association (CETA) The Controlled Environment Testing Association (CETA), is devoted to promoting and developing quality assurance within the controlled environment testing industry.
International Organization for Standardization (ISO) ISO (International Organization for Standardization) is the world’s largest developer and publisher of International Standards. ISO is a network of the national standards institutes of 162 countries, one member per country, with a Central Secretariat in Geneva, Switzerland, that coordinates the system. ISO is a non-governmental organization that forms a bridge between the public and private sectors. On the one hand, many of its member institutes are part of the governmental structure of their countries, or are mandated by their government. On the other hand, other members have their roots uniquely in the private sector, having been set up by national partnerships of industry associations.
Sheet Metal and Air Conditioning Contractors National Association (SMACNA) SMACNA is the Sheet Metal and Air Conditioning Contractors National Association. SMACNA’s mission is to provide products, services, and representation to enhance members’ businesses, markets, and profitability. Located in headquarters outside Washington, D.C., the Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA), an international association of union contractors, has 1,834 members in 101 chapters throughout the United States, Canada, Australia and Brazil.
Institute of Environmental Sciences and Technology (IEST) The Institute of Environmental Sciences and Technology (IEST) is an international, technical society of engineers, scientists, and educators that serves its members and the industries they represent (simulating, testing, controlling, and teaching the environments of earth and space) through education and the development of recommended practices and standards.
National Air Duct Cleaners Association (NADCA) The National Air Duct Cleaners Association (NADCA) was formed in 1989 as a non-profit association of companies engaged in the cleaning of HVAC systems. Its mission was to promote source removal as the only acceptable method of cleaning and to establish industry standards for the association. NADCA has expanded its mission to include the representation of qualified companies engaged in the assessment, cleaning, and restoration of HVAC systems, and to assist its members in providing high quality service to their customers. The goal of the association is to be the number one source for the HVAC cleaning and restoration services.
Mechanical Service Contractors of America (MSCA) Mechanical Service Contractors of America (MSCA) is an organization comprised of mechanical services companies and businesses that directly support those contractors. Its mission is to provide training and educational support to the Mechanical Services Industry, as well as networking opportunities.
National Environmental Balancing Bureau (NEBB) Established in 1971, the National Environmental Balancing Bureau (NEBB) is the premier international certification association for firms that deliver high performance building systems. Our members perform testing, adjusting and balancing (TAB) of heating, ventilating and air-conditioning systems, commission and retro-commission building systems, execute sound and vibration testing, and test and certify laboratory fume hoods and electronic and biological Cleanrooms. Building owners, engineers and contractors seeking ways to cut costs through the proper design, installation and optimal performance of heating, ventilation, air conditioning and refrigeration systems, benefit from working with NEBB certified professionals, who are required to complete extensive training and testing programs in order to attain certification status.
Plumbing, Heating, Cooling Contractors Association (PHCC) The Plumbing, Heating, Cooling Contractors Association (PHCC) is the oldest national trade association in the construction industry—and the premiere organization for the p-h-c professional. Since 1883, PHCC has been the leader in promotion, advancement, education and training. Today PHCC has more than 4100 contractor members from open and union shops, who work in the residential, commercial, new construction, industrial and service and repair industry segments.
The Plumbing Contractors Association (PCA) represents the interests of union plumbing contractors on a national level. In addition to lobbying, the PCA works with other industry groups and associations. Members of the PCA sit on the Board of Directors for IAPMO, work directly with the UA, ASSE, ASPE and the World Plumbing Council.