Answers before you call.
The questions contractors, owners, and property managers ask us most. Don't see yours? Reach out — we're happy to talk specifics.
What areas do you serve?
Metropolitan New York and New Jersey, including the five boroughs and the surrounding metro region.
Do you handle both new installations and existing systems?
Yes. We handle new installations and upgrades, plus service, testing, and maintenance — including major systems originally installed by others.
Do you provide central station monitoring?
Yes. 24-hour monitoring is available for fire, supervisory, and burglar systems through a U.L.-approved, FDNY-approved central station.
Do you handle complete projects?
Yes. Sherlock handles the full lifecycle — layout, equipment, installation, programming, testing, and maintenance — under one accountable contractor.
What warranty do you offer?
Installations include a one-year warranty on labor and materials. Additional service contracts are available for ongoing coverage.
Do you offer service contracts?
Yes. Service contracts keep systems tested, documented, and inspection-ready year after year.

