Door hardware, handled.

For sixty years, Knowles Door Check has handled the door hardware scope that others won’t — the complicated submittals, the spec mismatches, the field calls at 4 p.m. on a Friday. We are the people contractors and glaziers call when the project has to be right.

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1959
Year Founded
60+
Years in Business
3
Service Pillars
USA
Nationwide Coverage
01 — Services

Three pillars. One accountable partner.

Most coordination breakdowns happen at the seams between estimating, shipping, and field technical support. Knowles handles all three under one roof — specs that clear review the first pass, hardware boxed by opening for clean installs, and senior techs on call when the job changes after the schedule is locked.

01
Expect Knowledge

Estimating

Compatibility review, submittal packages, and hardware schedules prepared by senior estimators with six decades of door-type expertise. First-pass approvals, not back-and-forth revisions.

  • Door & hardware compatibility review
  • Full submittal packages
  • Hardware schedule preparation
  • Submittal reviews & revisions

“Specs that clear review the first pass.”

02
Expect Flexibility

Shipping

Phased deliveries, multi-site logistics, and box-by-opening markings built around your install sequence. Hardware arrives ready to hang — not in a pile your foreman has to sort.

  • Shipments to multiple locations
  • Custom shipments as required
  • Individual box markings by opening
  • Phased delivery to install schedule

“Hardware where it’s needed, when it’s needed.”

03
Expect Attention & Experience

Technical

Direct line to senior technicians for manufacturer coordination, schedules built from scratch when specs are incomplete, and field support that picks up the phone — not a ticket queue.

  • Compatibility reviews with manufacturers
  • Written hardware schedules from scratch
  • Conference calls & coordination meetings
  • Trained technician field support

“Senior techs on the line, every call.”

02 — How We Work

The middle of every door scope.

Door hardware fails when nobody owns the seams — between architect, fabricator, GC, and the field crew installing on a Friday afternoon. Knowles sits in the middle of that workflow, translating between the four parties so the hardware that arrives matches the openings that exist.

Upstream
Architect
Writes the spec, hands off the plan
Producer
Door Manufacturer
Builds the door, ships the hardware
Coordinator
Knowles Door Check
Translates between all four parties
Buyer
General Contractor
Owns the schedule and budget
Installer
Field Crew
Hangs hardware, calls when it's off
Where coordination breaks down

Without a coordinator owning the middle, every revision becomes a four-way phone tree. Architects don’t know what the door manufacturer changed. The GC doesn’t know what the architect specified. The field crew gets hardware that doesn’t match the openings. Knowles is what keeps the message intact across all four parties.

03 — Projects

Six decades. Real openings.

Stadium concourses, federal hospitality, luxury hotels, multifamily, resort entries — the projects below are a sample of the openings Knowles has coordinated. Click any tile to see it full-size.

Texas Live! and Globe Life Field, Arlington TX
Mixed-Use Entertainment · Texas
Texas Live!
Globe Life Field
Arlington, TX
Austin FC Q2 Stadium
MLS Stadium · Texas
Austin FC — Q2 Stadium
Austin, TX
Audi Field, Washington DC
MLS Stadium · DC
Audi Field
Washington, DC
The Glover House, Washington DC
Luxury Residential · DC
The Glover House
Washington, DC
Kalahari Resort, Round Rock TX
Resort · Texas
Kalahari Resort
Round Rock, TX
04 — Partners

Every brand.
One source.

Knowles is manufacturer-neutral by design. We work with the leading door hardware brands across the industry — locksets, closers, exit devices, automatic operators, electronic access control. You don’t pick a brand; you pick the specification, and we coordinate everything underneath it.

Locksets Closers Exit Devices Auto Operators Electronic Access Storefront Hardware All-Glass Entries Decorative Suites
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One call. Every opening covered.

Specifying Knowles means a single accountable partner from submittal through punch list — no finger-pointing between manufacturers, fabricators, and field crews.