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Prewiring for Security Cameras in New Construction

Prewiring for security cameras in new construction: where to run Cat6, how many drops, conduit, junction boxes, recorder closet, power, timing with the electrician, mistakes to avoid and what prewiring costs compared with retrofitting.

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By Tony M. | Camera Installation Specialist | 12 Years | Brooklyn-Based | NYC, Long Island and NJ | 207 Guides (author page)
ON THIS PAGE
  1. 1. The Short Version
  2. 2. Why Prewiring Pays
  3. 3. Choosing Cable
  4. 4. How Many Drops?
  5. 5. Exterior Locations
  6. 6. The Recorder Closet
  7. 7. Power Planning
  8. 8. Conduit and Future-Proofing
  9. 9. Coordinate With Other Trades
  10. 10. Documentation
  11. 11. Common Mistakes
  12. 12. Prewiring vs. Retrofitting
  13. 13. Cost
  14. 14. News Context
  15. 15. Questions to Ask Your Installer
  16. 16. A Sample Prewire Plan
  17. More From Revolvis
  18. Areas We Serve
  19. Get a Custom Quote After a Site Visit
  20. Frequently Asked Questions

The cheapest time to run camera cable is before the drywall goes up. In a new build or gut renovation, open walls and ceilings let a crew pull cable in a fraction of the time it takes in a finished house. Prewiring means installing the cabling, boxes and conduit for cameras now, even if the cameras themselves come later. This guide explains why prewiring is worth it, how many drops to plan, where they go, what type of cable to use, how to coordinate with the electrician and general contractor, the common mistakes that turn a cheap job into an expensive one and what it costs compared with retrofitting later.

This is general information. Local code and your builder's plans govern. Coordinate with your electrician and inspector.

1. The Short Version

Question Answer
When to prewire? After framing and rough-in, before insulation and drywall.
What cable? Cat6 for most; consider shielded or outdoor-rated where needed.
How many drops? Plan more than you need today.
Where does it end? A central, ventilated recorder closet.
Who does it? A low-voltage installer coordinated with the GC and electrician.
Biggest mistake Waiting until drywall is up.

2. Why Prewiring Pays

Fishing cable through finished walls is slow, risky and sometimes impossible. In new construction, cable runs through open studs and joists in minutes. Prewiring avoids cutting drywall, patching paint and hunting for paths through fire blocking. It also gives you flexibility: you can add cameras later at the planned locations without more demolition. The cost of the cable itself is small; the labor you avoid later is large. Our guide on adding wiring during a renovation covers similar logic for gut jobs.

3. Choosing Cable

For IP cameras, Cat6 is the common choice. It handles PoE and gives headroom for higher bandwidth and future cameras. Cat5e works but offers less margin. Outdoor-rated or direct-burial cable is needed where the run is exposed. In plenum spaces, use plenum-rated cable where code requires it. Avoid copper-clad aluminum. Label every cable at both ends. If you want shielded cable for noisy environments, discuss it with your installer. Our guide on Cat5e vs. Cat6 explains the trade-offs.

4. How Many Drops?

Plan generously. Think of every exterior door, garage, driveway approach, side yard, rear yard, basement entry, major interior hallway, and any spot that would be costly to add later. Add extras at corners and eaves for flexibility. A typical single-family home might get six to ten exterior drops and a few interior ones. A small commercial space might get eight to sixteen. Unused drops cost little; missing drops cost a lot. Our guide on camera placement helps choose locations.

5. Exterior Locations

Exterior drops typically terminate in weatherproof boxes mounted at eave or soffit height near planned camera spots. Leave a service loop of cable so the camera can be moved. Seal penetrations properly and use drip loops. Make sure the camera can be reached by ladder later. Think about the final landscaping, siding and lighting so cameras aren't blocked by a tree you're about to plant. Our guide on mounting cameras on different surfaces explains how siding type affects hardware.

6. The Recorder Closet

Run all cables to one central location. Choose a closet or utility room that is dry, ventilated and secure, with a dedicated outlet and, ideally, a place for a UPS and a network switch. Heat shortens equipment life, so avoid unventilated enclosures. Leave room for a patch panel and a small rack or shelf. Make sure the closet connects to your internet router with a network drop. Our guide on UPS backup and surge protection explains why power matters.

7. Power Planning

Most IP cameras use PoE from a switch, which means there is no need for an outlet at each camera. That simplifies exterior design. But the closet needs reliable power and an outlet on a good circuit. If you plan floodlight cameras or other devices needing line voltage, coordinate with the electrician. Keep low-voltage and line-voltage separated as required by code. Ask your electrician to install a dedicated circuit if recommended.

8. Conduit and Future-Proofing

Where cables run through slab, outdoors underground or in places that will be inaccessible later, consider conduit. A conduit with a pull string lets you replace cable without digging or demolition. Conduit costs little compared with trenching twice. Use proper bends and sizes, and keep fill reasonable. Our guide on outdoor cabling and conduit covers the detail.

9. Coordinate With Other Trades

Prewire fits between rough electrical and insulation. Talk to the general contractor early. Make sure the electrician knows where low-voltage cable will run and keeps power lines separate. Make sure drywall doesn't close before inspection of your cable. Take photos of every wall before it's covered. Mark cable positions on plans. Fire-stopping must be done wherever cable passes through rated assemblies. Our guide on the pre-install checklist can be adapted for contractors.

10. Documentation

Write down where every cable goes. Label ends, photograph runs and keep a one-page diagram with camera numbers and locations. Years later, when you add cameras or replace equipment, this paper saves hours. Give copies to the owner and installer. Our guide on documenting your camera system explains what to record.

11. Common Mistakes

12. Prewiring vs. Retrofitting

Prewiring a four-camera house might add a few hundred dollars to a job. Retrofitting the same cables through finished walls can cost thousands and may require patching and painting. In a commercial build-out, prewiring ties into ceilings and conduit before finishes go in. The difference is easy to see on a quote: ask for both options if you're deciding. Our guide on the cost of installing cameras shows typical ranges.

13. Cost

Planning ranges in 2026: prewire labor and materials, often $150 to $450 per drop depending on distance and difficulty; four-drop residential prewire, $700 to $1,800; eight-drop prewire, $1,400 to $3,400; later camera and recorder installation on prewired locations, $1,000 to $3,000 for four cameras; eight-camera system, $3,000 to $6,800 complete; sixteen-camera commercial system, $6,500 to $13,000. Conduit, trenching and complex layouts add cost. These are planning ranges, not quotes.

14. News Context

Builders and owners sometimes treat cameras as an afterthought, then regret it. In February 2026, NYPD released stills and video from a Staten Island doorstep to help identify three young men who tried to enter three homes overnight, according to CBS News New York. In July 2026, QNS reported that police were seeking a burglar who hit homes in Flushing, Oakland Gardens and Bayside, with a vehicle's plate partly covered and a $3,500 reward. A prewired home is ready for cameras the day you move in.

NYPD reported burglary down 19.5% citywide in May 2026 compared with May 2025 (NYPD).

15. Questions to Ask Your Installer

  1. How many drops do you recommend and where?
  2. What cable will you use, and is it rated for each location?
  3. Where should the recorder closet be, and what does it need?
  4. How will you coordinate with the electrician and GC?
  5. Will you label and document every run?
  6. Can you install cameras later at a fixed price?

See our local pages for security camera installation in Queens, commercial camera installation in Nassau County, home camera installation in Suffolk County and our services page.

Building or gutting a property? Send the plans. Revolvis will walk the property with you and mark the spots.

16. A Sample Prewire Plan

For a new two-story house with a garage, a sensible prewire might include: one drop at the front door; one at the driveway aimed along the approach; one at each side yard; two at the rear, covering the back door and yard; one at the garage; one inside the garage; one at the basement entry; and two spare drops at corners. That's twelve drops. All terminate in a basement utility closet with a dedicated outlet, a network drop to the router and room for a rack. Cables are Cat6, labeled by location, with service loops at each exterior box. Cameras can be installed in stages as budget allows.

More From Revolvis

Cameras are one layer of a secure property. The same in-house crew also handles the rest:

Learn more about Revolvis, meet the team, see all services, browse the blog or contact us.

Areas We Serve

Revolvis installs residential and commercial camera systems across the New York metro area. Every borough and county has its own building stock, rules and wiring challenges, so the plan for a Queens two-family is not the plan for a Manhattan co-op.

The full list is on the service areas page.

Get a Custom Quote After a Site Visit

Revolvis prices every job after a site visit, because the building sets the cost as much as the equipment does. A few things make the estimate faster and more accurate:

Call 347-258-9165 or use the contact page to book a site visit. The quote you receive is written and itemized, so you can compare it line by line.

Frequently Asked Questions

When should I prewire for cameras? After framing and rough electrical, before insulation and drywall.

What cable should I use? Cat6 for most IP camera runs, with the right rating for outdoors or plenum spaces.

How many camera drops should I plan? More than you need today. Extra drops are cheap; adding them later isn't.

Where should the recorder go? A central, ventilated, secure closet with power and a network drop.

Do I need conduit? For underground, slab and hard-to-reach runs, conduit is smart.

Is prewiring worth it? Usually yes. It can save thousands compared with retrofitting.

Ready for a custom quote? Call Revolvis at 347-258-9165 for a site visit and a written, itemized estimate.

Safety note: A camera system supports, but does not replace, good locks, lighting, alarms and everyday habits. If you are in danger or witnessing a crime, call 911. Prices and legal summaries in this guide are general information for the New York metro area, not an offer or legal advice. A written quote after a site visit governs your actual price, and for legal questions you should confirm with the agencies linked in the article or a licensed attorney.

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