A whole-home surge protector costs $350–$850 installed in Dallas-Fort Worth, for a standard 80–120kA panel-mounted unit: about $350–$650 for 80kA and $550–$850 for 120kA. The price covers the device, labor, grounding verification and the permit where your city requires one.
This guide is part of our Whole-House Surge Protection service in Dallas–Fort Worth.
A whole-home surge protector costs $350–$850 installed in Dallas-Fort Worth, for a standard 80–120kA panel-mounted unit: about $350–$650 for an 80kA device and $550–$850 for a 120kA device with LED status. That covers the device, labor, grounding verification and the permit where your city requires one, quoted flat-rate in writing before work starts.
2026 installed prices in DFW
| Install type | Installed price |
|---|---|
| Basic 80kA panel-mounted SPD | $350–$650 |
| Mid-grade 120kA SPD with LED status | $550–$850 |
| Add-on sub-panel protection | +$150–$250 |
| Panel replacement with surge protector | Quoted together after an on-site load calculation |
These match our surge protection service page. Most of the price is the work, not the device: mounting it at the panel, landing it on a breaker, and checking that the grounding system can carry a surge away. A surge protector is only as good as the ground it is connected to.
When does code require a surge protector?
Since the 2020 National Electrical Code, section 230.67 has required a Type 1 or Type 2 surge protective device on services supplying dwelling units, including when the service equipment is replaced (Leviton, NEC 230.67 flyer). In practice that means a panel replacement or service upgrade includes one. Which edition your inspector enforces depends on your city; see NEC editions by DFW city.
The section is short, and four parts of it decide what we install. The device "shall be an integral part of the service equipment or shall be located immediately adjacent thereto." It "shall be a Type 1 or Type 2 SPD." "Where service equipment is replaced, all of the requirements of this section shall apply." And it needs a nominal discharge current rating (In) of at least 10kA (all quoted from the Leviton NEC 230.67 flyer). The 80kA and 120kA figures in our price table are a different rating from that 10kA minimum: they describe the surge current the device is built to handle, not the code floor.
Type 1 vs Type 2 surge protector: what's the difference?
The type says where the device is allowed to connect, measured against the service disconnect. UL 1449 defines a Type 1 SPD as one "intended for installation between the secondary of the service transformer and the line side of the service disconnect over-current device, including the watt-hour meter socket enclosures," installed without an external overcurrent device. A Type 2 SPD is "intended for installation on the load side of the service disconnect over-current device, including SPDs located at the branch panel" (Hubbell, UL 1449 3rd Edition summary). Type 3 is the plug-in kind, used at the equipment itself.
| Type 1 | Type 2 | |
|---|---|---|
| Where it connects | Line side of the main breaker, as far as the meter socket | Load side of the main breaker, at the panel |
| Needs its own overcurrent device | No | Connected on the load side of one |
| Meets NEC 230.67 for a home | Yes | Yes |
Either type satisfies the dwelling requirement. Most homes get a Type 2 unit landed on a breaker in the main panel, because that is where the circuits are and where the status light can be seen. A Type 1 unit fits where the device has to go ahead of the main breaker. On Oncor service, the meter socket is Oncor's equipment: its guidelines allow only qualified electrical workers to remove meter seals and work inside meter enclosures (Oncor Electric Service Guidelines).
Fort Worth and Arlington: which code applies?
Both cities enforce an edition that includes 230.67, so a panel replacement in either one includes a surge protector. Fort Worth's building codes page says the city has adopted the 2026 NEC effective September 1, 2026. Arlington's Building Codes page lists the 2020 NEC, the edition that introduced the dwelling requirement. Prices are the same in both: $350–$650 for an 80kA unit and $550–$850 for a 120kA unit, installed. City pages: surge protection in Fort Worth and in Dallas. For other work in Arlington, see electrical repair in Arlington.
What it protects, and what it doesn't
A panel-mounted surge protector covers every circuit in the panel, including hardwired equipment a plug-in strip cannot reach: the HVAC system, the range, the water heater and an EV charger. It does not stop a direct lightning strike. The National Weather Service puts a typical lightning flash at about 30,000 amps (NWS, Lightning Power); what a whole-home unit is built for is the far more common induced surge from a nearby strike or from switching on the grid. Plug-in strips are still useful at the TV or computer as a second layer.
Texas recorded more lightning events than any other state in 2025, about 47 million, largely because of its size; adjusted for area, Florida is denser (Vaisala Xweather Annual Lightning Report 2025).
What's included
- A UL 1449-listed Type 2 surge protective device, 80–120kA
- Installation by a licensed Texas electrical contractor (TECL #40628)
- Grounding system verification
- Permit and inspection where your city requires them
- A status indicator so you can see the device is still protecting
Get a flat-rate price for your panel.
Written quote before any work starts.
Sources
- Leviton, NEC 230.67 surge protection (2020, 2023 and 2026 NEC)
- Hubbell, UL 1449 3rd Edition: SPD types
- Oncor, Electric Service Guidelines, February 2025
- City of Fort Worth, Building and Energy Codes
- City of Arlington, Building Codes
- National Weather Service, Lightning Power
- Vaisala Xweather, Annual Lightning Report 2025
Surge protector cost FAQs
$350–$850 installed in Dallas-Fort Worth for a standard 80–120kA panel-mounted unit (about $350–$650 for 80kA, $550–$850 for 120kA), including labor and grounding verification. See surge protection, or the Dallas and Fort Worth pages.
Many DFW cities require a permit for work inside the panel. We pull the permit where your city requires one, and it is included in the written quote.
Surge protectors wear as they absorb surges. Most whole-home units have a status light; check the manufacturer's label for what each indication means, and replace the unit when it shows that protection is lost. We check it whenever we are working in your panel.
No. A typical lightning flash carries about 30,000 amps, according to the National Weather Service, and no panel device is built to absorb a direct hit. Whole-home protectors are for induced surges from nearby strikes and from the grid.
If you are replacing your panel or service, the NEC already requires one. Otherwise it is a judgment call: it protects hardwired equipment, such as HVAC controls and appliance electronics, that a plug-in strip cannot, for $350–$850 installed.
Where it connects. Under UL 1449, a Type 1 device is intended for the line side of the service disconnect, between the utility transformer and the main breaker, including the meter socket enclosure. A Type 2 device is intended for the load side of the main breaker, such as on a breaker in the panel. NEC 230.67 accepts either for a home's service.
The same as the rest of Dallas-Fort Worth: about $350–$650 installed for an 80kA panel-mounted unit and $550–$850 for a 120kA unit with LED status. Fort Worth enforces the 2026 NEC and Arlington lists the 2020 NEC, and both editions require a surge protector when a home's service equipment is replaced.
