Wm. S. Trimble Company

Wm. S. Trimble Company was founded in 1936 by William S. Trimble. The company sold reinforcing steel from a rented office at Roehl Construction Company on Atchley Street in Knoxville. Specialty products were added to the operations when Wm. S. Trimble Company associated with Overhead Door Corporation as a major supplier. The company started subcontracting through the installation of Overhead Door products.

Another major event was the addition of Fenestra Steel windows during World War II as a compliment to the building specialties area. In 1948 the company was incorporated and continued adding additional products for diversification.

In 1958, Mr. Trimble died and his wife, Eleanor H. Trimble became the President. The following ten years saw continuous growth in the product lines and sales volume, including entry into the contract hardware business. Upon the death of Mrs. Trimble in 1968, Jim Seiber was elected President. During his tenure more products were added and the company continued to grow.

In 1987 Wm. S. (Scott) Trimble Jr. became President. Mr. Trimble continued with the tradition of quality goods and services that his parents began in 1936. Scott retired in 2008 and now William (Bill) S. Trimble III continues the family tradition. The company continues to grow as we look for new opportunities to serve our customers in the construction industry.


  • Hollow Metal
  • Wood Doors
  • Hardware
  • Toilet Acc/Partitions
  • Misc. Spec.


  • Windows
  • Doors
  • Hardware

Overhead Doors

  • Residential
  • Commercial
  • Dock Equipment

Security Integrations

  • Commercial
  • Access Control
  • Video Surveillance
  • Intrusion Detection
  • Wireless Locking & Key Replacement
  • Perimeter Lighting
  • Audio/Video Intercom Solutions


Wm. S. Trimble Company works closely with architects and contractors supplying product and services mainly relating to Sections 8 and 10 of the CSI format.

We have the technical expertise to accommodate any job no matter how large or small. Our professional staff is recognized by our manufacturers across the country for its standard of excellence.

Our staff includes a DHI Founders Award recipient as well as three other certified Architectural Hardware Consultants. As we approach the future, we pledge to continue to support the construction industry with quality products and services to all of our customers.

We are proud to have supported the construction industry in the East Tennessee area during the past eighty-plus years, and we look forward to the challenges and opportunities of the future.

An accurate estimate is a vital communication tool as well as a project roadmap from the budgeting phase through the completion of construction documents.

We're a factory direct distributor for all the major lines of Doors, Frames, Architectural Hardware, and Bath Accessories.

We offer consulting services for architects, contractors, and construction companies who would like to benefit from the experience and trained eye of seasoned professionals.

We provide specification consulting services and technical support to architects in order to deliver clear, correct, complete and concise specifications.

Our solutions are for clients from various industries from general contractors to government operations. The installation work is handled to the highest quality standards and in the most expert manner.

The process in which hardware such as hinges, door closers, exit devices, locks, electrified hardware, and flat goods are installed onto the doors prior to shipping to the jobsite.

Providing Identification, Authentication, and Authorization to secure your facility and control the movement of people in and out of your building.

Protect employees, protect/prosecute against loss, or simply implement a visible deterrent to criminal activity.

For those all-important periods of time when there is no one onsite to protect your building, let us take care of monitoring and protecting your building for you!



  • All
  • Municipal
  • Education
  • Medical
  • Recreation
  • Industrial
  • Retail
  • Financial
  • Utilities

Certifications & Licenses

  • Locksmithing License & Services
  • Certified by Tennessee Locksmith
  • Seal Program Participant
  • FDAI Certified
  • UL Listed Shop
  • DHI Member
  • AGC Member
  • ABC Member
  • CSI Member
  • We are FSC® certified (FSC® C021614)
  • Ask about our FSC® products

Let's Work Together

Meet our Team

At Wm. S. Trimble, our team works together in order to ensure our customers are happy & satisfied.

Bill Trimble

Bill Trimble


Bill has a bachelor's degree in engineering from Vanderbilt University and has spent 17 years in the door and hardware industry. He currently holds the position as President of DHI's Board of Governors.

Bill Trimble


Tom Rubright

Tom Rubright

Vice President

Tom Rubright is a Vice President of
William S. Trimble Co.

Tom Rubright

Vice President

Nathan Cox

Nathan Cox

Vice President

Nathan Cox is a Vice President of
William S. Trimble Co. and the divisional manager of Overhead Door Co. of Knoxville. Nathan has dedicated 34 years to our distributorship.

Nathan Cox

Overhead Door


From Architects, General Contractors, and Construction Developers, our client base exemplifies the expertise and value we seek to bring to your design projects. Many clients have worked with us for years; affirming that our expertise, commitment, outcomes orientation, and collaborative spirit result in fruitful, long-term working relationships.

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Southern Constructors, Inc.

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Contact Info

The Wm. S. Trimble team is here to assist you in every way possible.

  • HQ Address

    2200 Atchley Street, Knoxville, TN, 37920, USA

  • Phone

    Office: (865) 573-1911

    Fax: (865) 573-5239

Our Location

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