Business Details
50+ Years
experience
Your Trusted Source for Windows & Doors in Sandusky
Established in 1952 by Gene Koch, our family-owned business has dedicated over seven decades to delivering premium windows, doors, and building materials for residential and commercial clients. Our commitment to quality products and personalized service remains unwavering, with third-generation leadership ensuring continuity in craftsmanship and customer care. We specialize in custom solutions, including installation services performed by our own trained professionals, eliminating the need for subcontractors. Our product range spans vinyl and aluminum siding, soffit and fascia, aluminum railing systems, and energy-efficient patio covers. We offer competitive pricing for contractors and DIY customers while maintaining a showroom for direct engagement with our knowledgeable team.With a focus on innovation and durability, our partnerships with trusted manufacturers like ProVia and TEMO ensure long-lasting, code-compliant installations. We prioritize transparency in operations, providing free in-home estimates and maintaining open communication throughout every project. Our commercial division, active since 1989, serves major regional builders with tailored solutions for large-scale projects. By combining traditional values with modern materials, we continue to meet evolving customer needs while upholding our founding principles of reliability and excellence.
Services
Window Installation
Door Installation
Aluminum Railing
Screen Rooms
Commercial Products
Patio Covers
Vinyl Siding
Custom Awnings
Sunrooms
Gutter Systems
Details
- Year established: 1952
Highlights and features
- Third-generation family-owned business with 70+ years of local experience
- In-house installation team ensures quality control with no subcontractors
- Free in-home estimates for all residential window and door projects
- Exclusive partnerships with trusted manufacturers like ProVia and TEMO
- Dedicated commercial division serving regional builders since 1989
Services
Window Installation
We provide professional window installation for residential properties using custom-made ProVia windows. Our in-house team ensures proper fitting and energy-efficient performance. All installations include warranty coverage and maintenance-free materials.
Door Installation
Our door installation services cover entry, patio, and commercial doors with options from leading manufacturers. Installations meet safety codes and include customization for security features. We offer both residential and commercial applications with expert fitting.
Aluminum Railing
Custom aluminum railing systems are available in multiple styles and colors for residential and commercial properties. Our installations meet federal and local safety standards with corrosion-resistant materials. Includes cable railing and column options.
Screen Rooms
We construct screen rooms to protect outdoor spaces from insects while maintaining ventilation. Systems use durable fiberglass or aluminum mesh materials. Available for both residential decks and commercial patios in custom configurations.
Commercial Products
Our commercial division provides hollow metal doors, bathroom partitions, and architectural hardware to regional builders. Services include custom aluminum awnings and code-compliant railing systems with free project estimates for large-scale installations.
People
Gene Koch
Founder
Gene Koch established the company in 1952, laying the foundation for three generations of family ownership. His commitment to quality service remains central to our business philosophy today.
Randy Koch
Owner
Third-generation owner Randy Koch continues the family tradition of quality craftsmanship. He oversees daily operations while maintaining the company's commitment to personalized customer service since the 1980s.
Jill Hartley
Owner
As co-owner and third-generation leader, Jill Hartley manages business development while ensuring continuity in our customer-focused approach. She represents the family's ongoing commitment to local service excellence.
Questions
What types of windows and doors do you install?
We install custom ProVia windows and doors for residential properties, along with commercial hollow metal and wood doors from trusted manufacturers.
Do you offer commercial installation services?
Yes, our commercial division provides door systems, bathroom partitions, and architectural aluminum products for large-scale projects since 1989.
Are your installers company employees?
All installations are performed by our own trained professionals - we never use subcontractors for any window, door, or railing projects.
Do you sell products without installation?
Yes, we offer over-the-counter sales for all products including siding, gutter systems, and aluminum materials with special pricing available.
What are your business hours?
Our showroom is open Monday through Friday from 7:30 AM to 4:00 PM. We're closed on weekends and major holidays.
