Contra Costa County, California
Automatic Sliding Doors in Antioch, CA
Need automatic sliding door installation, repair, and sensor adjustment in Antioch? Guardian Door LLC works with retail, grocery, medical, office, and municipal entrances. Share what the door is doing and we’ll confirm the next step.
- Licensed & insured
- Fast response
- 5.0 on Google
California CSLB #1025448
Verify on the CSLB siteFully insured
Certificate of insurance on request
Commercial & industrial only
No residential garage doors
Based in Sacramento
Northern California service area
Your Automatic Sliding Doors Team in Antioch
Guardian Door LLC provides automatic sliding door installation, repair, and sensor adjustment for Antioch and nearby Contra Costa County communities. From Sacramento, Antioch sits roughly 43 miles to the southwest in Contra Costa County. Communities we serve close by include Pittsburg, Oakley, and Brentwood. More detail is on our main automatic sliding doors page.
- Safety device testing
- Doors that stay open or keep re-opening
- Operators, controls, and belts
- Operator replacement on existing entrances
- Single-slide, bi-parting, and telescoping entrances
- Motion and presence sensor adjustment
Automatic door problems we troubleshoot in Antioch
- A door that stays open or keeps re-opening is most often a sensor issue — the wrong detection pattern, a misaligned safety beam, a reflective floor, or displays moving inside the detection zone.
- That is usually an adjustment visit, not a new operator.
- Doors that won’t open, run rough, or stop mid-travel get a systematic check of power, controls, sensors, and the mechanical load before any parts are replaced.
Automatic entrance equipment we maintain and repair
- We service the major commercial sliding operators found in Northern California buildings.
- A photo of the header label lets us confirm parts availability before scheduling.
- High-traffic entrances such as grocery, medical, and retail benefit from service at least annually, and often semi-annually.
Safety standards and local requirements
- Requirements for an automatic entrance 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 Antioch 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 Automatic Sliding Doors Process
- In Antioch, our work follows 5 service-specific steps, from entrance assessment through safety verification.
- The detailed process below explains what each stage covers so you know what to expect before requesting a visit.
Recent Automatic Sliding Doors Projects
Photos from Guardian Door job sites across Northern California. Explore examples of the work we offer in Antioch, CA. Project locations are labeled where available.
How Automatic Sliding Doors Works in Antioch, CA
- 1
Entrance assessment
We evaluate the operator, header, track and carriers, panels, sensors, and controls, and identify anything that no longer meets safe operating standards.
- 2
Scope and quote
You get written pricing that separates required safety corrections from optional upgrades, so nothing is bundled in without your say.
- 3
Install or repair
New sliding systems, operators, header assemblies, sensors, and controls are installed; existing units are repaired and rebuilt where the equipment supports it.
- 4
Sensor and timing setup
Activation patterns, presence sensing, hold-open time, and opening and closing speeds are set per the manufacturer's specifications.
- 5
Safety verification
The finished entrance is cycled and checked for safe closing, correct sensor coverage, breakout function, and ADA-compliant clear width.
Automatic Sliding Doors in Antioch, CA — FAQs
Is Antioch inside your automatic sliding doors service area?
Yes — we cover Antioch and nearby Contra Costa County communities from Sacramento. Timing depends on the scope of work; share the address and what the door is doing and we’ll confirm.
What information helps you prepare?
Configuration — single slide, bi-parting, telescoping, or unsure; Operator brand and model if the header label is readable; Symptoms — won't open, stays open, closes too fast, noisy, error light; Whether the entrance is your only accessible entry; Business hours and preferred service window.
How often should automatic sliding doors be inspected?
Industry practice and the AAADM program call for a daily safety check by the owner and a professional inspection at least annually — semi-annually for high-traffic entrances like grocery, medical, and retail.
Why does my automatic door stay open or keep re-opening?
Almost always a sensor issue: a presence or activation sensor with the wrong pattern, a dirty or misaligned safety beam, a sensor picking up a reflective floor, or moving objects like flags and displays inside the detection zone. It's a diagnostic-and-adjustment call, not usually a new operator.
Where do you dispatch to Antioch from?
We dispatch from Sacramento. Antioch is roughly 43 miles southwest of our base, inside our 100-mile service radius.
Can you replace just the operator and keep the existing doors?
Often yes. If the panels, glass, and framing are sound, a new operator and header can be fitted to the existing package, which costs considerably less than a full entrance replacement.
Related guides
Explore more
Other Services in Antioch
- Hollow Metal Doors in Antioch, CA
- Storefront Entrances in Antioch, CA
- Swing Doors & ADA Operators in Antioch, CA
- Roll-Up Sheet Doors in Antioch, CA
Local service