Can DOOR be installed in an existing building?

Yes. DOOR says its hardware works for both new construction and retrofit properties, installs on existing doors and infrastructure, and integrates with most property management systems, which it presents as a way to upgrade a building without major renovation or rewiring.

Can a rollout start with a single building?

Yes. The company says it supports partial rollouts and phased deployments, from one building to a hundred, with a customer success team involved at each step.

Access control & smart locks

Latch

Founded in 2014 as Latch and now operating as DOOR, the company sells smart access hardware and a building operating system to multifamily owners and operators. The hardware range covers the C2 smart lock, M2 and M3 mortise locks and an interconnect lock, the R2 smart reader, a smart intercom, camera and DOOR Link, plus smart-home devices including the Scout remote access and building health device, a thermostat, hub, leak sensor, dimmer switch, open/close monitor, motion sensor and a temperature and humidity monitor.

DOOR OS is the management side: access control, building health and day-to-day operations in one hub, integrated with property management software to sync users, run move-ins and move-outs, and open a work order automatically when a leak is detected. The DOOR App is the resident, guest, vendor and staff side. Deployments can be partial or phased, one building or a hundred, and the hardware is designed to fit both new construction and retrofit properties on existing doors and infrastructure. Most lock and smart-home devices are battery powered with up to two years of battery life; access control devices run on low-voltage supply, wall outlet or PoE. Installation is also available through a channel partner program for installers, integrators, contractors, distributors and low-voltage professionals.

The company launched DOOR in 2023 as a broader platform and now presents Latch as part of its hardware line, saying all Latch hardware continues to be fully supported with regular updates, system compatibility and access to the DOOR App and DOOR OS. It lists offices in Olivette, Missouri, near St. Louis, and on Newbury Street in Boston, and publishes an investors and financial filings section. Named customers on the site include AvalonBay Communities and JDL Development.

Pricing is by quote and not published. The vacant-unit energy claim is framed as increasing operating efficiency by up to 20%, not as a guarantee. Confirm which locks fit your existing door hardware, what the per-unit software subscription costs, whether DOOR or a channel partner will install, and how the PMS integration handles your move-out workflow.

Best for

Multifamily owners and operators standardising access control across a portfolio, including retrofits, who want locks, intercom and smart-home sensors on one platform. Single small buildings with no property management software will get less from it.

What they do

Smart locks for apartment units
Access control readers and intercoms
DOOR OS building management platform
Resident, guest and vendor access app
Property management system integrations
Smart-home sensors and thermostats
Leak detection with automatic work orders
Vacant unit energy management
Channel partner installation network

Details

Attribute	Value
Founded	2014
Offices	Olivette, MO, Boston, MA

What stands out

Founded in 2014 as Latch; launched the DOOR platform in 2023 and now trades under the DOOR name.
Says all existing Latch hardware remains fully supported, with updates and access to the DOOR App and DOOR OS.
Vacant-unit energy controls are claimed to increase operating efficiency by up to 20%.
Most lock and smart-home devices are battery powered with up to two years of life; access control devices use low-voltage, outlet or PoE power.
Lists offices in Olivette, Missouri and Boston, Massachusetts.

Common questions

Are Latch products still supported now the company is DOOR?: Yes. The company says all Latch hardware continues to be fully supported, with regular updates, system compatibility, and access to the DOOR App and DOOR OS.
Can DOOR be installed in an existing building?: Yes. DOOR says its hardware works for both new construction and retrofit properties, installs on existing doors and infrastructure, and integrates with most property management systems, which it presents as a way to upgrade a building without major renovation or rewiring.
Can a rollout start with a single building?: Yes. The company says it supports partial rollouts and phased deployments, from one building to a hundred, with a customer success team involved at each step.