What a low-voltage technician does for your business
On your jobs, a low-voltage technician installs and services the systems that run through a building at low voltage — security, fire alarm, access control, structured cabling and AV. The O*NET task list for the closest published occupation, security and fire alarm systems installers, reads like a scope of work: installing and repairing security and alarm systems following blueprints of electrical layouts and building plans; mounting and fastening control panels, door and window contacts, sensors and video cameras; attaching wiring to connect components; testing circuits and sensors; and pulling cable through walls and roof spaces.
The same hire can cross into adjacent work. Telecommunications equipment installers assemble and install data and telephone lines, wiring and networks, and test circuits to isolate faults; audiovisual installers mount and wire speakers, calibrate and test equipment, and instruct customers on the safe use of a system. A cross-trained technician covers more of your book of work — the same person can pull cable on a build-out in the morning and take the afternoon service call.
Source by task list, not by title. O*NET's sample job titles for this occupation include Alarm Technician, Fire Alarm Technician, Security Installation Technician and Service Technician — candidates who match your scope may not carry the exact phrase low-voltage technician on their resume, so search the titles your market actually uses.
This page is the employer view. For the worker-side picture — what the work is like and how people enter the trade — see what a low-voltage technician does on the career guide.
Looking to hire? Post your low voltage technician role on ElectricianHires and reach people who already work in the electrical trade.
Post a Low Voltage Technician Job →Which license or certification to require
Settle the license question before you write the posting, because it decides who can hold the work and how you word requirements. Low-voltage, alarm and fire-alarm licensing is set state by state, and the agency that administers it differs from state to state; city or county rules can add a layer on top. Confirm with your state's licensing agency — and your local government — which of your work streams require a license or registration before you assign a tech to them.
The agency that administers it differs by state. ESA — the association behind the National Training School and the Certified Alarm Technician credential — says its National Training School courses have some level of approval for licensing or renewal from agencies including the Texas DPS Private Security Bureau, the Tennessee Alarm Systems Contractors Board, the Florida Electrical Contractors Licensing Board, the NY Department of State and the NC Alarm Systems Licensing Board — with the caveat that approvals may not cover all courses. Read that list as a map of the oversight: a public-safety department in one state, a dedicated alarm board in the next, a licensing board in a third.
Certifications are signals, not licenses — but they are readable ones. NICET's Fire Alarm Systems certification comes in four levels, and the experience minimums behind each tell you roughly how much related work a holder has logged: Level I requires 6 months of full-time-equivalent experience, Level II 2 years, Level III 5 years and Level IV 10 years. NICET certification is maintained through continuing professional development and recertified every three years, so verify a credential is current rather than taking a resume line at face value.
For cabling-heavy crews, BICSI's installation pathway reads the same way. Installer 1 (INST1) is a nonrenewable, entry-level certificate and the entry point to Installer 2 Copper, Installer 2 Optical Fiber and Technician. Installer 2 Copper eligibility is one of 6 months of full-time-equivalent structured cabling field experience plus a passed INST1, or 1 year of copper field experience plus BICSI's instructor-led copper training, or 2 years of field experience plus at least 35 hours of documented copper continuing education — and the credential runs on a 3-year cycle requiring at least 15 continuing-education credits plus an ethics course. In alarm work, ESA's Certified Alarm Technician Level 1 pairs a course with a proctored exam; ESA notes that not all state regulatory agencies allow online courses for licensing, so ask how a candidate's course was taken when a license is in play.
Write certifications as preferred, not required, unless your jurisdiction or a contract requires them — and never list one in place of the license. Where the state or a city requires a license or registration for a work stream, a certification cannot stand in for it.
Confirm before you post: requirements change, and the regulator differs by state and sometimes by city. Verify the current rules with the agency that regulates low-voltage and alarm work where you operate before you write requirements into a posting or assign work.
What to pay a low-voltage technician
Benchmark first, then adjust for your market. In BLS OEWS May 2025 (national, all industries), Security and Fire Alarm Systems Installers (SOC 49-2098) — the closest published occupation to a general low-voltage hire — earned a median of $28.88 per hour ($60,070 per year). The middle half earned between $22.99 and $35.43 per hour, the 90th percentile was $39.01 per hour, and employment in the occupation was 86,340.
Weight the proxy by your mix. Our research found no low-voltage-technician occupation in the published BLS series, so the role's wages map onto adjacent published jobs: audiovisual equipment installers and repairers (SOC 49-2097) earned a median of $25.29 per hour, and telecommunications equipment installers and repairers, except line installers (SOC 49-2022), earned a median of $30.72 per hour in the same release. If your book is security and fire alarm, lead with the 49-2098 figure; if it is structured cabling and telecom, 49-2022 is the proxy the research maps to that work.
Know what the series does not tell you: OEWS is a national, all-industry series, and it does not split union from non-union pay. The 10th percentile ($18.65 per hour) is the bottom of a distribution that spans every experience level, not a trainee wage. Treat the national percentiles as a frame and calibrate against the postings and pay data in your own market.
Two practical moves follow. Put a pay range in the posting so qualified candidates do not self-select out before you ever see them. And tie progression to the credential rungs in the licensing section above — NICET levels and BICSI pathway steps give you objective, externally verifiable markers for raises that are easy to defend in a review.
Where to find low-voltage technicians
Recruit first from pools that already do related installation work. Inside wiremen are the first to check: in the electrical training alliance's Inside Wireman job analysis, 82% of the inside-wireman journeymen surveyed reported installing fire alarm systems, 57% security systems and 36% telephone and data systems. By that self-report many of those journeymen already perform this work — what to verify before they take your scope is the license, registration and certifications your state and contracts require.
Adjacent installer occupations are the other natural pool — the task lists show the overlap: audiovisual installers mount and wire speakers and calibrate and test equipment; telecommunications equipment installers assemble and install data and telephone lines, wiring and networks, and test circuits to isolate faults. BLS also notes — for electrician apprenticeships — that workers who gained electrical experience in the military or in construction may qualify for a shortened apprenticeship based on their experience and testing, a hint that those pools hold people with hours already on the tools.
Widen the funnel deliberately. Women were 1.2% of security and fire alarm systems installers in 2025 (BLS Current Population Survey, 58,000 employed) and 3.5% of employed electricians. Run channels beyond the ones that produced those numbers: trade-school job boards, veterans' organizations and community postings.
Post where electrical-trade people already look, and title the role the way candidates search for it — the titles in the first section are your search terms. Your opening belongs alongside the rest of the low-voltage technician jobs candidates browse. For the whole recruiting system — channels, sequencing, follow-up — see hiring electricians: the employer guide.
How to screen and test low-voltage technician candidates
Screening sits mid-way through the hiring process, and for this role it pays to run it in two passes: papers first, hands second. On paper, verify whatever license or registration your state and city require for your work streams — capture the number, check it against the issuing agency's own records rather than a photocopy, and re-verify at offer stage, because a credential was only true on the day you looked. Verify certifications the same way: NICET recertifies on a three-year continuing-development cycle and BICSI's Installer 2, Copper credential runs on a three-year cycle, so ask for current status, not the certificate from years ago.
Then build a short practical that mirrors the task list. Hand the candidate a print and ask them to walk the device and cable layout. Ask how they would route and pull cable through walls and ceiling spaces. Have them mount and connect a panel and devices on a bench, then power it and troubleshoot a circuit. For service-heavy roles, add a customer scenario: instructing customers on the safe use of a system is on O*NET's task list for AV equipment installers, so walking a customer through their system is job content, not a soft skill bolted on.
Read credentials for what they are. Certifications are not licenses, and where the state requires a license for a work stream, no certification substitutes for it. An OSHA 10 or OSHA 30 card is neither a license nor, by itself, the electrical safety training OSHA requires — confirm your training duties against OSHA's rules rather than reading the card as proof.
Background checks: our research did not find a single national rule for alarm-technician background checks, and it did not confirm which agency, if any, sets a fingerprinting, registration or license check in each state or city. Confirm with the agency that regulates alarm work in your state before you build a check into your offer process, and apply whatever check you do require consistently for the same role.
Keep interview questions job-related and consistent across candidates: a recent install they can walk through end to end, how they document their work, and how they handled a callback they could not solve on the first visit tell you more than any checklist answer.
Onboarding and retention for the role
Structure the first 90 days deliberately. Pair the new tech with a lead, standardize the van, tools and labeling, and make documentation a day-one habit — photos of as-built conditions, panel directories, test readings. Confirm licensing paperwork before the first job, record every license and certification expiry centrally, and book renewals early: a lapsed credential idles a tech you recruited and trained.
Plan around churn. In 2025, total separations in the construction industry averaged 4.0% of employment per month and quits averaged 1.8% per month (BLS JOLTS — monthly rates, not annual turnover figures). That is churn on a monthly drumbeat rather than an annual event, so keep sourcing running even when you are fully staffed.
Retention tools for this role are concrete: pay progression tied to NICET levels and BICSI pathway steps, funded continuing education where a state requires it for renewal, and a visible path from installer to lead tech to service specialist or crew lead. Where a license is part of the job, treat renewal support as retention infrastructure, not a perk — and confirm the current renewal requirements with the licensing agency, because they change.
This page is employer information, not licensing, legal or safety advice. Licensing and background-check requirements for low-voltage and alarm work can differ by state and by city — confirm what your work requires with the agency that regulates it where you operate, and talk to employment counsel about background checks, classification and pay practices.

