Santa Clara County, California

Hollow Metal Doors & Frames in Santa Clara County, CA

Guardian Door LLC provides hollow metal door and frame installation, including fire-rated openings and full hardware sets for commercial buildings, schools, healthcare, industrial, and multifamily properties in Santa Clara County. Tell us what the door is doing and we’ll confirm availability and the next step.

Get a Quote in Santa Clara County (833) 424-3667
  • Licensed & insured
  • Fast response
  • 5.0 on Google

  • California CSLB #1025448

    Verify on the CSLB site

  • Fully insured

    Certificate of insurance on request

  • Commercial & industrial only

    No residential garage doors

  • Based in Sacramento

    Northern California service area

Your Hollow Metal Doors Team in Santa Clara County

Guardian Door LLC provides hollow metal door and frame installation, including fire-rated openings and full hardware sets for the listed cities in Santa Clara County. We cover 10 communities in Santa Clara County, from Milpitas (about 82 miles from Sacramento) out to Los Gatos (about 96 miles). For the full scope of this service, see our hollow metal doors overview.

  • Fire-rated door and frame assemblies
  • Welded and knock-down hollow metal frames
  • Security and exterior steel doors
  • Gasketing, coordinators, and thresholds
  • Door-only replacement in sound existing frames
  • Hinges, closers, exit devices, and locksets

Hollow metal openings we assess in Santa Clara County

  • We start by checking the frame: whether it is plumb and sound, whether its label matches the rating the opening needs, and whether the hardware preps line up.
  • That tells us if the existing frame can stay or needs replacement.
  • Stock sizes and common ratings can arrive quickly; custom sizes, welded frames, and special finishes take longer.
  • Lead time is part of the quote.

Doors, frames, and hardware we install

  • Hollow metal doors, welded and knock-down frames, and the hardware that goes with them — hinges, closers, exit devices, locksets, coordinators, and gasketing — installed to template.
  • On a rated opening the hardware is part of what makes the assembly compliant, so we specify and install it as a set.

Fire-rated openings and local requirements

  • Requirements for a hollow metal opening depend on the specific opening — its fire rating, egress role, accessibility function, and the occupancy of the building.
  • They are set by the building and fire authority with jurisdiction over your address, which in Santa Clara County can be a city department or the county, depending on where the property sits.
  • We check what applies to your opening before recommending work, and we tell you when a component repair is not the same as a full compliance inspection of the assembly.

Our 5-Step Hollow Metal Doors Process

  • In Santa Clara County, our work follows 5 service-specific steps, from opening survey through code verification.
  • The detailed process below explains what each stage covers so you know what to expect before requesting a visit.

Recent Hollow Metal Doors Projects

Photos from Guardian Door job sites across Northern California. Explore examples of the work we offer in Santa Clara County, CA. Project locations are labeled where available.

See more Guardian Door projects →

How Hollow Metal Doors Works in Santa Clara County, CA

  1. 1

    Opening survey

    We field-measure the opening, confirm wall type and handing, and identify the required fire rating and hardware set from the existing label and use of the space.

  2. 2

    Specification and quote

    Door gauge, frame type, rating, finish, and the complete hardware schedule are quoted in writing before ordering.

  3. 3

    Fabrication and delivery

    Doors and frames are ordered with factory prep and labels for the specified rating and hardware.

  4. 4

    Installation

    Frames are set plumb, square, and anchored to the wall type; doors are hung and the full hardware set installed to template.

  5. 5

    Code verification

    Rated openings are checked for self-closing, positive latching, correct clearances, intact labels, and required gasketing.

Hollow Metal Doors in Santa Clara County, CA — FAQs

Is Santa Clara County inside your hollow metal doors service area?

Yes. Santa Clara County is inside our Northern California service area, and we dispatch to the listed cities in Santa Clara County from our Sacramento base. Scheduling depends on the job, so send the address and the problem and we’ll confirm availability.

What parts of Santa Clara County do you serve?

We currently cover Campbell, Cupertino, Los Altos, Los Gatos, Milpitas, Mountain View, Palo Alto, San Jose, Santa Clara, and Sunnyvale in Santa Clara County.

Do you install the hardware too?

Yes — hinges, continuous hinges, closers, exit devices, locksets, thresholds, coordinators, and gasketing, installed to template. On rated openings the hardware is part of what makes the assembly compliant, so it isn't something to leave to another trade.

What should I send before you come out?

Opening location, size, and handing (or we field-measure); Required fire rating if known, or a photo of the existing frame label; Wall construction — stud, masonry, or existing frame reuse; Hardware needs — panic device, lockset, closer, card reader prep; Whether the opening must stay secured during the swap.

What is a hollow metal door?

A hollow metal door is a steel door built from face sheets over an internal core, hung in a steel frame. It's the standard for commercial back-of-house, stairwell, mechanical, and exterior service openings because it takes abuse and is available in fire-rated assemblies.

What is the difference between a welded and a knock-down frame?

A welded frame arrives as one rigid unit and is set before the wall is finished — it's stronger and standard on new construction and masonry. A knock-down frame ships in three pieces and assembles around an existing finished wall, which makes it the usual choice for replacement work.

Have a door problem in Santa Clara County, CA?

Send the address and what the door is doing. We’ll confirm availability and next steps.

Speak With Our Team (833) 424-3667 david@guardiandoorllc.com

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