Low voltage estimates built system by system,
not lumped into one line.
Low voltage is the trade that gets underestimated most often not because the systems are simple, but because they're easy to treat as an afterthought when there are bigger scopes competing for attention on the bid. Fire alarm, security, access control, structured cabling, AV, and nurse call systems each have their own device counts, cable runs, head-end equipment, and programming costs. When they get rolled into a single "low voltage allowance," that number is almost never right. At Remarkable Estimating, we count every device, measure every cable run, and price every system independently because a low voltage estimate built from the actual drawings protects your margin in a way that an allowance never can.
What Is Low Voltage Estimating?
Low voltage estimating is the process of counting devices and measuring cable for each low voltage system on a project (fire alarm, structured cabling, access control, video surveillance, intrusion, AV and nurse call) and pricing the head-end equipment, pathway, terminations, testing, programming and labor. A low voltage takeoff is the quantity part of that work; the estimate adds pricing.
Remarkable Estimating Services, LLC, based in Hawthorne, California, prepares low voltage takeoffs and cost estimates for low voltage and systems integrators, electrical contractors, general contractors and owners in all 50 states. We work remotely from your technology, fire alarm, security and electrical drawings and Division 27, 28 specifications and deliver an itemized Excel or PDF estimate, typically within 48–72 hours. We are an estimating firm: we do not install, program or service low voltage systems.
Power, lighting and distribution are covered in electrical takeoff and estimating. For the whole building, see our full-project cost estimating and quantity takeoffs.
Why Low Voltage Scopes Get Underbid and How We Prevent That
Low voltage systems have a reputation for being straightforward to estimate. That reputation is undeserved. The systems themselves aren't particularly complex in concept you're counting devices and measuring cable runs. The problem is that low voltage drawings are often the last ones completed and the least coordinated with other trades, which means the scope on paper and the scope in the field can diverge significantly.
The device count problem is the most common one. Fire alarm devices, security cameras, access control readers, data outlets, and AV connection points are scattered across dozens of drawing sheets reflected ceiling plans, enlarged floor plans, details, and system riser diagrams. A fast estimate that only counts from one drawing type will miss devices that only appear on another. On a large commercial project, missing a meaningful share of the device count isn't unusual when drawings haven't been carefully cross-referenced. And those missed devices mean missed cable runs, missed conduit, and missed labor hours at every location.
Cable run lengths are the second issue. Low voltage cable runs that look short on a plan view frequently travel significantly farther in the field because of the routing path up through a wall, across the ceiling plenum, down to the head-end equipment room. A horizontal distance on plan can turn into a much longer cable run when you account for the vertical travel at both ends and the routing through cable trays and conduit. Multiply that across hundreds of cable runs and the cable quantity and the labor to pull it is meaningfully higher than the plan view suggests.
Head-end equipment is the third area where estimates fall apart. The panel, server, or controller that ties a low voltage system together has a cost profile that's completely different from the field devices and it varies significantly based on building size, zone count, and system specification. Estimating a fire alarm panel or an access control server from a generic allowance rather than from the actual system specification and device count produces a number with no real relationship to what the equipment costs.
We cross-reference every low voltage system across all drawing sets, count every device, measure cable runs with routing allowances, and price head-end equipment from the actual specifications. That's what a low voltage estimate that survives buyout actually requires.
The problem with a low voltage allowance isn't just that it's probably the wrong number. It's that nobody knows which direction it's wrong until the subcontractor comes back with an actual bid and by then, the GC's number is already in front of the owner.
What Our Low Voltage Estimating Services Include
A complete low voltage estimate covers every system independently device counts, cable runs, conduit, head-end equipment, and labor for each system priced separately. Here's everything we include in a full low voltage takeoff.
Our Low Voltage Takeoffs Include
- Fire alarm system smoke detectors, heat detectors, pull stations, horns, strobes, and duct detectors from device schedule
- Fire alarm control panels (FACP), annunciator panels, and remote power supplies
- Fire alarm cable notification appliance circuit (NAC) and initiating device circuit (IDC) wiring
- Security intrusion detection motion sensors, door contacts, glass break detectors, and keypads
- Security control panels, communicators, and monitoring equipment
- Access control card readers, electric strikes, magnetic locks, and request-to-exit devices
- Access control servers, controllers, and door interface modules
- CCTV and IP camera systems by camera type, mounting condition, and resolution spec
- Video management system (VMS) servers, NVRs, and network switches for camera systems
- Structured cabling Cat6, Cat6A, and fiber optic cabling by run and pathway
- Network equipment patch panels, racks, cabinets, and horizontal cable management
- Telecommunications rooms MDF and IDF equipment, grounding, and power
- Audio-visual systems display screens, projectors, control systems, and signal distribution
- Conference room AV video conferencing, digital signage, and room scheduling panels
- Public address and intercom systems speakers, amplifiers, and head-end equipment
- Nurse call systems patient stations, staff stations, dome lights, and master stations
- Distributed antenna systems (DAS) for cellular and public safety radio coverage
- In-building wireless wireless access points, controllers, and cable runs
- Paging systems speakers, amplifiers, and zone control equipment
- Cable tray, conduit, and pathway systems for low voltage distribution
- Cable runs measured with vertical routing and plenum pathway allowances
- Device mounting hardware, brackets, and backboxes
- Testing, commissioning, and programming labor by system type
- Installation labor hours by system type, device density, and building conditions (union, open-shop or prevailing wage rates)
Every device, every cable run, every head-end component counted from your low voltage drawings and system specifications, not estimated from a per-square-foot allowance.
How Our Low Voltage Estimating Process Works
From your low voltage drawings and system specifications to a finished, system-by-system estimate here's exactly how we work through a low voltage takeoff from start to finish.
You send us your low voltage drawings and system specs
Low voltage floor plans, fire alarm drawings, security and access control plans, structured cabling layouts, AV drawings, riser diagrams, device schedules, and Division 27 and 28 specifications. The riser diagrams and device schedules are as important as the floor plans they confirm device types, head-end equipment designations, and cable pathway requirements that don't always show up clearly on floor plan view alone. If any system drawings are preliminary, we flag what's missing and document our assumptions before we start counting.
PDF, CAD, or Bluebeam all formats accepted
We identify and separate every low voltage system before counting
Fire alarm, security, access control, CCTV, structured cabling, AV, nurse call, DAS, and paging are all completely separate scopes with different subcontractors, different material costs, and different labor rates. Blending them into a single "low voltage" estimate produces a number that can't be verified at buyout and doesn't help when you're trying to level subcontractor bids against each other. We identify every system present in the building, separate them before counting a single device, and estimate each one independently.
Every system separated never blended
Device counts cross-referenced across all drawing sets
Low voltage devices appear on floor plans, reflected ceiling plans, enlarged room plans, and system-specific drawings and they don't always appear on all of them consistently. We cross-reference device counts across every applicable drawing sheet for each system, using the device schedule as the authoritative reference where one is provided. Discrepancies between drawing sets get flagged and documented rather than resolved by assumption. On large commercial projects, catching device count discrepancies before the estimate is submitted saves significant reconciliation work at buyout.
Cross-referenced device counts all drawing sets
Cable runs measured with vertical routing and plenum allowances
Plan-view cable run distances consistently undercount actual installed cable footage because they don't reflect vertical travel at device locations, routing through cable trays and conduit in ceiling plenums, and the pathway from the ceiling to the head-end equipment room. We apply routing allowances calibrated to building type, ceiling height, and head-end location so cable quantities in the estimate reflect what actually gets pulled and terminated, not what a straight-line plan measurement suggests. Head-end equipment gets priced from the actual system specification and device count, not from a generic panel allowance.
Routing-adjusted cable runs · Schedule-based equipment
Missed-item review, then clean delivery
Before the estimate leaves our hands, we check for the low voltage items most commonly missed: stairwell and elevator fire alarm devices, rooftop equipment area devices not on standard floor plans, pathway and cable tray scope, testing and commissioning labor, and programming allowances for access control and AV systems. Delivery is a clean Excel or PDF organized by system devices, cable, conduit and pathway, head-end equipment, and labor for each system with a complete scope notes and exclusions sheet so nothing is ambiguous when subcontractors review it.
Delivered 48–72 hrs · Rush available
Types of Low Voltage Projects We Estimate
From a smart home security package to a full multi-system low voltage scope on a large hospital the number of systems and the complexity of their integration determines the estimating challenge, not just the building size. Our process handles both ends of that spectrum.
Residential Low Voltage Estimating
New construction, smart home upgrades, and whole-home technology packages security systems, surveillance cameras, structured cabling for data and entertainment, access control at entry points, and whole-home audio. Residential low voltage scopes are smaller in total cost but still need proper device counts and cable run measurements to protect margin on what's typically a competitive, time-sensitive bid. We give low voltage contractors a complete system-by-system breakdown priced to current regional costs.
Commercial Low Voltage Estimating
Office buildings, schools, hospitals, hotels, retail centers, data centers, and multi-family residential commercial low voltage is where scope complexity is highest and the cost of an underbid is most significant. Life safety fire alarm systems, enterprise-grade structured cabling, multi-door access control, comprehensive CCTV coverage, and complex AV systems all need careful, system-level treatment. Healthcare projects add nurse call, infant security, and patient entertainment systems with their own device counts and programming requirements. We handle every commercial low voltage system independently with full device counts and cable run measurements.
Industrial Low Voltage Estimating
Warehouses, manufacturing plants, processing facilities, and distribution centers industrial low voltage typically involves perimeter security, extensive CCTV coverage of large floor areas, fire alarm systems designed around industrial occupancy conditions, and communication systems that have to function reliably in harsh environments. Industrial buildings also tend to have complex cable routing requirements because of the large distances between devices and head-end locations. We price industrial low voltage systems from the actual drawings and specifications not from commercial benchmarks that don't reflect industrial installation conditions.
Why Low Voltage Contractors Choose Remarkable Estimating
Here's what working with us on a low voltage scope actually looks like not just what we say we do.
Every System Estimated Separately Organized for Buyout
Fire alarm subcontractors, structured cabling contractors, security integrators, and AV installers all bid separately and price completely differently. An estimate that blends all of these into one "low voltage" number creates a problem at buyout that costs time and credibility. Our breakdown maps directly to how the work actually gets subcontracted each system as its own scope with its own device count, cable quantities, equipment, and labor.
Device Counts Cross-Referenced Not Just Counted From One Sheet
Low voltage devices appear inconsistently across multiple drawing types, and a count from floor plans alone will miss devices that only appear on reflected ceiling plans or system-specific drawings. We cross-reference every device count across all applicable drawing sheets and reconcile against the device schedule where one is provided. Discrepancies get flagged, not resolved by assumption. On large commercial projects, this cross-referencing step consistently catches missing devices that a single-drawing count would have left out.
Cable Runs Measured With Routing Allowances Not Straight-Line Distances
Plan-view cable distances don't account for vertical travel at device locations, routing through ceiling plenums, or the path back to the head-end room. On a large building with head-end equipment in a basement or a dedicated MDF room, actual cable run lengths can be considerably longer than plan-view distances suggest. We apply routing allowances calibrated to building type and head-end location so cable quantities reflect what actually gets installed.
Head-End Equipment Priced From Specifications Not From Allowances
Fire alarm control panels, access control servers, NVR systems, and structured cabling distribution frames have costs that scale with building size, device count, and system specification. A generic "panel allowance" that doesn't reflect the actual system size and specification produces a number that's wrong in both directions depending on project size. We price every head-end component from the actual system spec and device count at current regional pricing.
Programming and Commissioning Included Not Listed as Exclusions
Access control programming, fire alarm commissioning, AV system configuration, and structured cabling testing and certification are all real costs that belong in the estimate. Listing them as exclusions creates a gap that someone has to fill usually at a time when the budget is already under pressure. We include testing, commissioning, and programming labor as line items based on system type and complexity, and we're explicit about what's included rather than hiding scope in a vague "installation labor" line.
48–72 Hour Turnaround Flat Project Pricing
Low voltage bids often arrive late in the bidding process. Standard turnaround is 48–72 hours from receiving a complete document set. Rush delivery is available for tighter windows just let us know when you send your documents. Pricing is quoted based on project scope and may be provided as a flat project fee or hourly rate. Flat project fees are agreed upfront. No retainers, no revision fees for reasonable clarification questions. Your drawings and specifications stay completely confidential throughout.
Related Trade Estimating
Get a Free Low Voltage Estimate
Send us your drawings and we'll come back with a clear scope, a realistic turnaround, and a quote for the estimate, usually within 24 hours. Want to see our work first? Ask for a free sample estimate.
Prefer to send plans directly? Email info@remarkableestimating.com or call (424) 441-4101.
Low Voltage Estimating Services Across All 50 States
We're based in Hawthorne, California, and work remotely with low voltage contractors, systems integrators, electrical contractors, general contractors, and owners across the entire United States. Whether you're bidding a fire alarm package in Georgia, a structured cabling scope in California, a hospital nurse call and security system in New York, or an industrial CCTV installation in Ohio you get the same device-level detail and pricing that reflects your actual regional labor and material market. Hover over your state below.
Low Voltage Estimating FAQs
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What pricing data and deliverables do you use?
Can I see a free sample before sending a real project?
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Does Remarkable Estimating perform low voltage work?
Got a low voltage scope to price? Let's count every device properly.
Send us your low voltage drawings, device schedules, and system specifications. We'll come back with a system-by-system takeoff, clear scope notes, and a quote for the estimate before you commit to anything. Want to see what our work looks like? Ask for a free sample estimate.
Mon – Fri, 8:00 AM – 5:00 PM Pacific · Rush turnaround available