Optimum Window Mfg. Corp.
Optimum Window Mfg. Corp. is a privately held, US-based custom manufacturer of architectural, fire-rated, aluminum, and detention steel windows and doors serving architects, developers, contractors, and institutions from its Ellenville, New York facility since 1985.
- Company typePrivate
- Founded1985
- HeadquartersEllenville, United States
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Optimum Window Mfg. Corp. does
Optimum Window Mfg. Corp. is a privately held custom steel window and door manufacturer founded in 1985 and headquartered in Ellenville, New York, where it operates a single integrated manufacturing facility. The company designs, fabricates, and ships made-to-order products across five core lines: Reliant (hot-rolled steel, including the thermally broken RTS-430 series), Flex (cold-rolled steel), Metro (thermally broken aluminum), Fire-Rated steel windows and doors with up to 90-minute certified protection, and Detention fully welded systems for correctional facilities. All units are custom built per approved shop drawings using computerized cutting, welding, punching, and assembly equipment, with in-house engineering staff converting architectural renderings into CAD drawings. Finishing is handled in-house via an electrostatically applied, zero-VOC RAL powder coating process rated to AAMA 2604 with a 10-year warranty, and products are constructed from 100 percent recycled steel.
Optimum Window Mfg. Corp. firmographics
Firmographics- Name
- Optimum Window Mfg. Corp.
- Legal name
- Optimum Window Mfg Corp.
- Website
- https://optimumwindow.com
- Company type
- Private
- Founded year
- 1985
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Optimum Window Mfg. Corp. is a privately held, US-based custom manufacturer of architectural, fire-rated, aluminum, and detention steel windows and doors serving architects, developers, contractors, and institutions from its Ellenville, New York facility since 1985.
- Ownership category
- akta.pro rank
Optimum Window Mfg. Corp. industry classification
Industry- Product category
- Architectural Steel Windows and Doors Manufacturing
- NAICS
- Metal Window and Door Manufacturing (332321), Ornamental and Architectural Metal Products Manufacturing (33232)
- SIC
- Metal Doors, Sash, Frames, Moldings & Trim (3442), Fabricated Structural Metal Products (3440)
- akta.pro primary industry
- Windows (IMADAIAC)
- akta.pro secondary industries
- Architectural Hardware & Door Controls (Hinges, Locks, Closers, Panic Devices) (IMADAIAI), Interior Doors (IMADAIAB)
Keywords
Where Optimum Window Mfg. Corp. is headquartered
LocationHeadquarters
- HQ city
- Ellenville
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Optimum Window Mfg. Corp. business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Custom Steel Windows Sales: Custom fabricated steel windows sold directly to architects, developers, contractors, and homeowners for architectural, residential, commercial, and institutional applications.
- Custom Steel Doors Sales: Custom steel doors including bi-fold, lift and slide, pivot, and multi-slide configurations sold for various building applications.
- Aluminum Window and Door Division: Metro aluminum window and door product line providing thermally broken aluminum options for projects requiring lighter weight materials.
- Detention and Prison Systems: Specialized fully-welded detention windows and doors for correctional facilities including projected guard windows and single-hung configurations.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom Quote-Based Pricing |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels6 records
Optimum Window Mfg. Corp. product offering
Product offeringCore offering
Optimum Window Mfg. Corp. designs, engineers, and custom-fabricates steel windows and steel doors for architectural, commercial, high-end residential, fire-rated, government/institutional, and detention applications. All products are made-to-order at the company's Ellenville, NY facility using hot-rolled steel, cold-rolled steel, thermally broken steel, stainless steel, bronze alloy, and aluminum, with in-house powder coating and CAD engineering support.
Differentiator
Problem solved
Functional benefit
Brands
- Reliant: Hot-Rolled Steel Window and Door Systems product line including HR4500, HR4700, Princeton, and RTS430 thermally broken series.
- Flex
- Metro
Products and services
- Reliant Hot-Rolled Steel Windows and Doors
Quantifiable outcome
- U-values as low as 0.19 achievable with thermal break technology
- +3 more outcomes
Companies that use Optimum Window Mfg. Corp.
Customer profileSegments6 records
Ideal customer profiles5 records
Optimum Window Mfg. Corp. technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Optimum Window Mfg. Corp. partnerships and signals
Strategic signalScale indicators4 records
Recent moves5 records
Expansion highlights5 records
Optimum Window Mfg. Corp. competitors and assessment
Company assessmentBroad incumbents
- Marvin Windows and Doors: Major US manufacturer of premium wood, wood-clad, and aluminum windows for high-end residential and light commercial projects — competes for the same luxury residential and architectural specifications where Optimum's steel window products are used.
- Steelcraft (an Allegion brand): Large-scale manufacturer of commercial steel doors and frames used across commercial, institutional, and detention construction — comparable in metal door manufacturing but operating at much higher volume and with broader standardized catalog offerings.
- Oldcastle BuildingEnvelope: Large US supplier of architectural glazing systems, storefronts, curtain walls, and architectural metal products — overlaps with Optimum on commercial architectural envelopes and competes for institutional and commercial project specifications.
- Assa Abloy: Global leader in door hardware, openings, and architectural metal products — relevant peer because Optimum's steel door systems include hardware integration and Assa Abloy owns competing steel door brands (e.g., Steelcraft, Ceco) targeting similar commercial and institutional buyers.
- EFCO Corporation: Established US manufacturer of architectural aluminum windows, curtain walls, and storefront systems serving commercial and institutional projects — competes for the same architectural specifications where Optimum's aluminum (Metro) line is offered.
- Wausau Window and Wall Systems: Major US manufacturer of architectural aluminum and steel-clad windows, curtain wall, and storefront systems for commercial and institutional buildings — overlaps with Optimum on commercial and institutional fenestration but at much larger scale and broader product portfolio.
- Tubelite: US manufacturer of architectural aluminum entrance systems, storefronts, and curtain walls for commercial construction — competes with Optimum's aluminum and architectural steel products in the same commercial specification channels.
Direct peers
- Crittall Windows: British pioneer of steel windows with a US presence, producing custom hot-rolled steel window and door systems for residential and commercial applications — directly comparable in product category, materials, and architectural specification process.
- Hope's Windows: Long-standing US-based manufacturer of custom steel windows and doors, including fire-rated and thermally broken products, serving architectural and high-end residential projects — the closest direct competitor to Optimum Window in the custom steel fenestration niche.
Emerging players
- Vitrocsa: Designer and manufacturer of ultra-minimal steel and aluminum window and door systems targeting high-end architectural projects — competes in the same premium, design-forward steel window category where Optimum's Reliant and Flex lines are specified.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Optimum Window Mfg. Corp. social profiles
Digital presenceOptimum Window Mfg. Corp. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Optimum Window Mfg. Corp. leadership team
Management profileNumber of profiles
Profiles1 record
Optimum Window Mfg. Corp. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Optimum Window Mfg. Corp. M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Optimum Window Mfg. Corp.
What does Optimum Window Mfg. Corp. do?
Optimum Window Mfg. Corp. designs, engineers, and custom-fabricates steel windows and steel doors for architectural, commercial, high-end residential, fire-rated, government/institutional, and detention applications. All products are made-to-order at the company's Ellenville, NY facility using hot-rolled steel, cold-rolled steel, thermally broken steel, stainless steel, bronze alloy, and aluminum, with in-house powder coating and CAD engineering support.
Is Optimum Window Mfg. Corp. a public or private company?
Optimum Window Mfg. Corp. is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Optimum Window Mfg. Corp. founded?
Optimum Window Mfg. Corp. was founded in 1985. It employs 51 to 100 people.
Where is Optimum Window Mfg. Corp. based?
Optimum Window Mfg. Corp. is headquartered in Ellenville, United States, in the North America region.
How does Optimum Window Mfg. Corp. make money?
Four revenue lines are on record. Custom Steel Windows Sales are the primary driver. The others are custom Steel Doors Sales, aluminum Window and Door Division and detention and Prison Systems.
Who are Optimum Window Mfg. Corp.'s main competitors?
Broad incumbents on record are Marvin Windows and Doors, Steelcraft (an Allegion brand), Oldcastle BuildingEnvelope, Assa Abloy, EFCO Corporation, Wausau Window and Wall Systems and Tubelite. Direct peers are Crittall Windows and Hope's Windows. Vitrocsa is listed as an emerging player.
Does Optimum Window Mfg. Corp. have an API?
No public API is recorded for Optimum Window Mfg. Corp..
What industry is Optimum Window Mfg. Corp. in?
Optimum Window Mfg. Corp.'s product category is Architectural Steel Windows and Doors Manufacturing. Its primary akta.pro industry code is IMADAIAC, Windows, with a secondary code of IMADAIAI, Architectural Hardware & Door Controls (Hinges, Locks, Closers, Panic Devices). Its NAICS code is 332321 and its SIC code is 3442.