Spikes, not outages
An SPD addresses brief overvoltage transients. It does not store backup power or replace the function of an ordinary circuit breaker.
PRO Electric plus HVAC · Northern Virginia
Your HVAC. Your appliances.
Your connected home. We install surge protective devices for your home’s electrical system, then help you plan the right protection for the equipment you depend on.
Fairfax · Loudoun · Arlington · Prince William · Falls Church
The clear answer
A surge protective device, or SPD, helps limit brief voltage spikes and diverts surge current. A suitable device at the service or panel adds a protection layer for circuits serving appliances, HVAC equipment, and electronics.
An SPD addresses brief overvoltage transients. It does not store backup power or replace the function of an ordinary circuit breaker.
Switching motors and compressors can generate transients. Utility switching and nearby lightning are other possible sources.
We review the system, equipment, grounding and bonding, and device instructions to decide where protection belongs.
Five scenarios. One clearer picture.
Choose an event. Compare the example with and without a panel SPD.
Examples of connected equipment
Connected loads shown. Actual equipment outcomes are not predicted.
Ordinary power is available in this example.
What changes in this scenario?
With normal utility power, the equipment in this example is powered. The installed SPD is ready to respond to a brief voltage transient; it does not need to trip a breaker first.
An SPD is not a voltage regulator or a guarantee that every electrical condition is normal.
Educational concept illustration. It does not measure voltage, predict damage, or test your home. Backup sources and all possible surge entry paths are not modeled. An SPD does not guarantee protection from every event.
Build protection around your home
Whole-home and point-of-use protection can work together. We recommend the locations and devices that fit your system, equipment, and goals.
A suitable SPD adds a protection layer for circuits throughout the home. We select listed equipment for the service or panel arrangement.
Type 1 or Type 2, as appropriate.Sensitive controls can benefit from a suitable device closer to the equipment. We review the existing protection, wiring path, and manufacturer’s requirements.
A useful addition when the layout calls for it.Listed plug-in protectors can add a layer for suitable connected electronics. A plain outlet strip is not necessarily a surge protector.
Follow the product’s listing and instructions.Do you need every layer shown? Not automatically. Type 1 and Type 2 describe permitted installation applications; they are not a requirement to install two separate devices in every home. These are concept illustrations, not wiring or mounting instructions.
Already have a surge protector?
Protection indicators vary by model. Start with the label and manual, then choose the statement that matches what you know.
Use externally visible information. Keep electrical covers closed.
Find the model number and the meaning of its protection indicator using the label, manual, or records you already have. An illuminated power switch is not always a protection-status light.
If the indication is unclear, share the model and a photo of the externally visible label. Keep electrical covers closed.
Smoke, fire, or active arcing is an immediate hazard. Move away and call 911 from a safe location.
From first conversation to installed protection
Share the address, the equipment you want to protect, and any recent power problems or upcoming electrical work.
We review the service or panel, existing protection, grounding and bonding, access, and equipment requirements.
We confirm the scope and price, then install listed equipment according to its instructions and applicable requirements.
We explain the protection indicator, model information, and what to do if the status changes.
Our team includes Master Electrician Peter. PRO Electric plus HVAC holds Virginia contractor license 2705181607.
We consider your electrical system and the heating and cooling equipment connected to it when planning suitable surge protection.
We explain the recommended work before you authorize it. Financing is available on request.
Veteran & military discount programPlanning service equipment work?
Virginia currently uses the 2020 National Electrical Code. Section 230.67 requires a listed Type 1 or Type 2 SPD for services supplying dwelling units and applies when service equipment is replaced. Location provisions include an exception for qualifying downstream distribution equipment. We confirm the requirements for your project with the local building department.
Customer experiences
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Include the service address, known equipment details, and any upcoming electrical work. Share only photos you can take safely without opening electrical covers. Submitting a request does not confirm an appointment.
Surge protection questions, answered
Devices, installation, HVAC protection, indicators, and how surge protection differs from backup power.
Talk with our electrical teamA surge protective device, or SPD, helps limit brief voltage spikes and diverts surge current. Installed at suitable service or panel equipment, it adds protection for circuits serving hardwired appliances and plug-in electronics. We select the device and installation for the electrical system, then discuss any useful protection closer to equipment.
Switching motors, compressors, and other equipment can create short voltage transients. Surges can also come from utility switching or nearby lightning. The source and path vary, so we review both the electrical system and the equipment you want to protect.
An ordinary circuit breaker protects against overloads and short circuits. An SPD addresses brief overvoltage transients. They serve different purposes. Some products combine functions, but a normal breaker should not be assumed to provide surge protection.
A listed plug-in surge protector can add protection for suitable connected equipment. It does not cover hardwired HVAC or every circuit in the home. A plain power strip may only add outlets. Check the listing and instructions, and coordinate point-of-use protection with the service or panel installation.
Not automatically. These types describe permitted installation applications, not a rule that every home needs two separate devices. Type 1 and Type 2 SPDs can serve different service or panel arrangements. We select listed equipment for the actual installation and decide where additional protection would be useful.
Yes. Appropriate surge protection can help reduce transient exposure to HVAC electronics and control boards. We review the service or panel protection and whether a suitable device near the equipment makes sense. It does not correct every electrical problem or guarantee that a control board cannot fail.
No surge protector can guarantee protection from a direct lightning strike. SPDs can help limit some lightning-related electrical transients, but direct strikes can exceed their capability. A designed lightning-protection system addresses a broader set of risks.
No. An SPD does not generate or store backup power. A battery, generator, or UPS system serves that purpose when designed for the loads and runtime required. Surge protection and backup power can be planned together.
Read the instructions for the exact model. Colors and labels are not universal, and a power light is not necessarily a protection light. An unlit or warning indication may reflect loss of power, reduced protection, or a need for replacement. Keep covers closed and ask for a qualified review if a hardwired unit’s status is unclear.
There is no single replacement age for every SPD. Service life depends on the device, installation, electrical conditions, and events it experiences. Follow the manufacturer’s inspection, status-indicator, and replacement guidance. A working outlet or normal-looking enclosure does not confirm that surge protection remains available.
Virginia currently uses the 2020 National Electrical Code. Section 230.67 requires a listed Type 1 or Type 2 SPD for services supplying dwelling units and applies when service equipment is replaced. The location provisions include an exception for qualifying downstream distribution equipment. We confirm the project’s applicable requirements with the local building department.
Cost and timing depend on the equipment selected, the existing service or panel, access, wiring needs, and any permit or corrective work. Many straightforward installations can be handled in one visit, but we confirm the scope first. Request a free estimate and share the service address, known equipment details, and any recent power problems.
A local team for your home
We install surge protection in Fairfax, Loudoun, Arlington, and Prince William counties, including Falls Church and nearby communities. Share your service address and the equipment you want to protect.
Whole-home surge protection from PRO Electric plus HVAC.
PRO ELECTRIC plus HVAC
Find a tool. Plan a project. Get the right help.
Useful starting points for your next repair or project.
Switch example loads on and off to see how demand adds up.
SimulatorExplore household loads before discussing a breaker or panel concern.
GuideOrganize the outage details that help identify the right next call.
SimulatorCompare illustrated power events with and without a panel surge protector.
GuideChoose an observed warning sign for immediate next-step guidance.
PlannerAnswer four questions to prepare for a service-disconnect conversation.
PlannerBuild a useful brief for a renovation, addition, or wiring concern.
PlannerChoose your situation and concerns to prepare an inspection brief.
PlannerTurn a report or notice into questions and records for your electrician.
ChecklistCollect known alarm concerns into a service-request brief.
PlannerDescribe a device problem or upgrade and prepare a clear service request.
ServiceExplore electrical installation for a hot tub or spa.
ServiceRequest a professional review of your home’s electrical system.
ServiceExplore the electrical work for a home infrared sauna.
CalculatorCompare the time needed to replace a typical day’s driving.
SimulatorSee how an example EV charger changes simultaneous household demand.
PlannerSelect essential loads and an outage length to explore an energy target.
ServiceExplore standby generator options and installation for your home.
PlannerChoose your lighting goal and build a brief for your estimate.
ExplorerTry warm or cool light and switch between ambient, task, and accent layers.
PlannerSelect outdoor areas and controls to build a lighting brief.
FinderMatch an outdoor area and project goal to a useful planning brief.
ExplorerTry lighting layers for paths, steps, patios, and garden details.
CalculatorCompare electricity use and running cost for a group of lights.
PlannerChoose connected-home goals, a platform, and your project stage.
PlannerCompare the support, ceiling, and location details for your fan project.
FinderChoose your cooling goal and prepare for the next conversation.
GuideCollect observed symptoms and a short note for your service call.
ChecklistReview changes you have noticed and prepare a service conversation.
PlannerDescribe your space, ductwork, and priorities for an installation estimate.
PlannerBring system age, performance, and project goals into one planning brief.
GuideUse current observations to discuss a tune-up or another service visit.
GuideOrganize cooling-breakdown symptoms before you call for help.
PlannerTurn room-by-room comfort needs into a clear installation brief.
FinderChoose a heating goal and your equipment to organize the next step.
GuideDescribe what your heating system is doing and prepare a service note.
PlannerReview your equipment and service history, then plan a reminder.
PlannerPrepare questions about equipment, ducts, and comfort priorities.
CalculatorCompare quoted upfront amounts and annual energy costs over your chosen period.
PlannerExplore a heat-pump project using your goals and current equipment.
PlannerReview service history and set a personal reminder to arrange heating care.
ServiceReview what is involved in replacing your heating and cooling system.
PlannerMap home, away, and sleeping times for a thermostat planning note.
PlannerOrganize your equipment details and indoor-air goals for a service conversation.
PlannerCombine a humidity reading and window observations into a useful service note.
Try a shorter phrase such as “no heat,” “EV charger,” or “outlet.”
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