Black Diamond Electric & HVAC Services installs and replaces residential heat pumps in Martinsburg, Inwood and across the Eastern Panhandle. Because we are a licensed HVAC contractor and a WV Master Electrician (#M2584DH0726), the equipment, the electrical work it needs, the permit and the inspection are handled together instead of split between two contractors.
The planning matters more than the brand of equipment. A system that is sized, matched and wired for the house it is going into will outperform a better-known nameplate installed on assumptions.
We evaluate the house and its electrical service before recommending equipment, and the recommendation follows the findings. If your current heat pump isn't working right, start with heat pump repair and service.
More on this:Heat Pump Repair & Service
Reasons homeowners look at a new heat pump
These are reasons to have the system and the house evaluated. None of them decides the project on its own.
- An aging heat pump that has reached the end of dependable service
- A major component failure on the existing equipment
- Repairs that keep coming back on the same system
- Rooms that have never held temperature the way the rest of the house does
- A furnace-and-AC pairing you want to replace with a heat pump or a dual-fuel setup
- An addition, a converted space or a room with no ductwork
- Electric baseboard or window units you would rather stop relying on
- Equipment that was never correctly sized for the home
Replacing a heat pump vs. adding one for the first time
Replacing swaps an existing heat pump for new equipment. Adding one usually means moving away from a furnace, boiler, electric baseboard or window units. Both start with the same evaluation, but conversions more often involve ductwork, electrical or control changes.
More on this:Ductless Mini-Split SystemsAir Conditioning Installation & ReplacementFurnace Repair & Heating Service
How much does heat pump installation cost in the Eastern Panhandle?
It depends on the system type, the home's heating and cooling load, the ductwork, and whether electrical work is needed, so we price it after seeing the house.
What moves the number:
- System type: ducted, ductless single-zone or multi-zone, or dual-fuel
- Capacity based on the home's heating and cooling load
- Equipment efficiency and cold-weather performance
- Ductwork condition and any modifications it needs
- Electrical work: circuits, disconnect, breaker space, panel or service capacity
- Outdoor unit location, pad, line set and condensate routing
- Thermostat and controls
- Removal of the old equipment
- Permit and inspection
We don't quote a system over the phone, but once we've seen the house we'll walk you through exactly what the price includes.
Are there heat pump rebates or tax credits in West Virginia in 2026?
Updated September 2026
For most Eastern Panhandle homeowners, not right now. The federal 25C energy-efficiency tax credit ended for equipment placed in service after December 31, 2025, and West Virginia's state rebate programs are not yet available in our area.
The federal 25C credit: the IRS has confirmed the credit is not allowed for property placed in service after December 31, 2025, under the One Big Beautiful Bill Act. Many older articles still list it as available, which is where most of the confusion comes from.
The West Virginia HOMES program: in August 2026 the WV Office of Energy opened a pilot phase limited to select homes in southern West Virginia, not the Eastern Panhandle. The companion HEAR rebate program has not launched. Current status is posted at energywv.org.
Utilities: we're not aware of a current Potomac Edison or Mon Power heat pump rebate for West Virginia residential customers.
We're not tax advisors, so confirm anything tax-related with your tax professional. We'll update this page if programs open up in our area.
How is a heat pump sized for a house?
By the home's heating and cooling load, not just its square footage. Construction, insulation, windows, orientation, ductwork and how the house is used all change how much capacity it needs.
What we look at before recommending equipment:
- The home's heating and cooling load, not just floor area
- Equipment sizing and capacity in both heating and cooling modes
- Existing ductwork condition and capability, where the system is ducted
- Airflow throughout the house, including rooms that never balance out
- Electrical requirements of the proposed equipment
- Thermostat and control compatibility
- How supplemental or auxiliary heat should be configured, and whether a dual-fuel arrangement applies
- The condition of existing components that would be reused
- Comfort goals and any rooms that have never worked well
- Property-specific conditions such as equipment location, clearances and drainage
An oversized system short-cycles and never runs long enough to even out the house; an undersized one leans on supplemental heat. Getting that right at the planning stage is most of the job.
Does installing a heat pump require an electrical panel upgrade?
Not automatically. The equipment's electrical requirements get compared against the home's existing service, panel capacity, breaker space and condition, and in plenty of homes nothing needs to change.
That comparison covers service capacity, panel condition, available breaker space, the existing circuits serving the equipment and any deficiencies already present. In some homes electrical work is genuinely part of the project. The items that can be involved:
- A dedicated circuit for the outdoor unit
- A circuit for the indoor unit and any electric auxiliary heat
- A disconnect
- Breaker space
- Service capacity
Electric auxiliary heat can be a significant electrical load, which is why it gets evaluated up front rather than discovered on installation day. Our owner is a WV Master Electrician (#M2584DH0726), so the electrical side and the HVAC side are evaluated on the same visit — including when the answer is that nothing needs to change.
More on this:Electrical Panel UpgradesElectrical Troubleshooting & Safety Inspections
Ducted heat pump, ductless mini-split or dual-fuel?
It depends on the house. Ducted heat pumps suit homes with usable ductwork. Ductless mini-splits suit additions, converted spaces and homes without ducts. Dual-fuel pairs a heat pump with a gas or propane furnace for the coldest stretches.
The terminology trips people up, so it is worth separating. "Heat pump" describes the technology: moving heat rather than burning fuel to make it. "Mini-split" describes a configuration: an outdoor unit paired with one or more wall, ceiling or floor units, without ductwork. Most ductless mini-splits use heat-pump technology, and a conventional ducted heat pump is still a heat pump.
A furnace generates heat from its fuel or energy source; a heat pump moves it, and because that process reverses, one piece of equipment usually covers both heating and cooling. Neither is right for every house. Some homes here run heat pumps year-round, some run furnaces, and some use a dual-fuel arrangement.
More on this:Ductless Mini-Split SystemsFurnace Repair & Heating Service
Will a heat pump keep my house warm in an Eastern Panhandle winter?
A properly sized and configured system can, and many homes here heat with heat pumps year-round. Equipment designed for cold-weather performance, correctly staged auxiliary heat, or a dual-fuel setup covers the coldest stretches.
One thing to expect: supply air from a heat pump feels milder than air from a furnace, because it delivers gentler heat over longer run times rather than short blasts of very hot air. That is normal behavior, not a fault. The repair page goes into what is normal and what is worth diagnosing.
More on this:Heat Pump Repair & Service
What happens during a heat pump installation?
We evaluate the home and its electrical service, recommend equipment, pull the permit, install and connect the system, test it in heating and cooling, and coordinate the inspection.
- Site visit. We look at the home's load, ductwork, airflow, equipment location, and the existing electrical service and panel.
- Recommendation. We lay out equipment options and the electrical scope, including when no electrical work is needed, and walk through the price.
- Permit. We pull the required permits.
- Installation. We remove the old equipment, set the outdoor unit, and install or replace the indoor unit or coil. We also run the line set and condensate, make the electrical connections, and set up the thermostat and controls.
- Startup and testing. We check heating and cooling operation, airflow, defrost and auxiliary heat staging, and thermostat programming.
- Inspection. We coordinate the inspection.
- Walkthrough. We explain how the system normally behaves — milder supply air, defrost cycles, auxiliary heat — plus filters and seasonal maintenance.
More on this:HVAC Maintenance & Tune-Ups
How long does heat pump installation take?
It depends on scope. A like-for-like replacement is a shorter job than a conversion that needs ductwork or electrical changes, and we'll give you the schedule when we scope the job.
Permit and inspection timing sits outside our control and can add to the overall timeline, so we factor that in when we set expectations.
Permits, inspections and licensing
We pull the required permits and coordinate inspections as part of the job, so you're not filing paperwork or scheduling inspectors yourself.
Black Diamond Electric & HVAC Services is licensed and insured, and our owner holds West Virginia Master Electrician license #M2584DH0726.
Heat pump installation in the Eastern Panhandle
The houses here fall into a few recognizable groups, and each one changes what a heat pump project looks like. Older homes near the center of Martinsburg were built before central air, so the electrical service usually needs a look before the equipment conversation goes anywhere. Mid-century homes are often on their second or third generation of equipment, and the ductwork, the electrical supply and the equipment do not always match each other anymore.
Newer subdivisions bring a different question: the panel is already carrying an EV charger, a home office and sometimes a hot tub, so the heat pump is one more sizeable load on a service that is busier than it looks. Rural properties on well and septic add their own considerations around equipment location, clearances and drainage.
We install heat pumps for homeowners in Martinsburg, Inwood, Charles Town, Ranson, Bunker Hill, Hedgesville, Falling Waters, Gerrardstown, Kearneysville, Shepherdstown, Berkeley Springs, and Winchester, VA.
Heat Pump Installation & Replacement FAQs
- How much does it cost to install a heat pump in Martinsburg, WV?
- It depends on the system type, the home's heating and cooling load, the condition of the ductwork and whether any electrical work is needed. We don't quote a system over the phone. Once we've seen the house we'll explain exactly what the price includes.
- Is there a tax credit or rebate for heat pumps in West Virginia in 2026?
- For most Eastern Panhandle homeowners, not right now. The federal 25C credit is not allowed for property placed in service after December 31, 2025, and West Virginia's HOMES pilot is limited to select homes in southern West Virginia, with HEAR not yet launched. We're not tax advisors, so confirm anything tax-related with your tax professional.
- Does a new heat pump require an electrical panel upgrade?
- Not automatically. We compare the equipment's electrical requirements against the home's existing service, panel capacity, breaker space and condition, and in plenty of homes nothing needs to change. When work is needed, we handle it ourselves rather than sending you to a second contractor.
More on this:Electrical Panel Upgrades
- How long does heat pump installation take?
- It depends on scope. A like-for-like replacement is a shorter job than a conversion that needs ductwork or electrical changes. We give you the schedule when we scope the job, and permit and inspection timing can add to the overall timeline.
- Will a heat pump work in West Virginia winters?
- A properly sized and configured system can, and many homes here heat with heat pumps year-round. Equipment designed for cold-weather performance, correctly staged auxiliary heat or a dual-fuel setup covers the coldest stretches. Supply air feels milder than furnace air, which is normal.
- Should I get a ducted heat pump or a ductless mini-split?
- It depends on the house. Ducted equipment suits homes with usable ductwork, while ductless suits additions, converted spaces and homes without ducts. We look at the ductwork, the load and the electrical service before recommending either.
More on this:Ductless Mini-Split Systems
- Do you pull permits for heat pump installation?
- Yes. We pull the required permits and coordinate the inspection as part of the job, so you're not filing paperwork or scheduling inspectors yourself.
- My heat pump isn't working. Do I need a new one?
- Not necessarily. Plenty of heat pump complaints turn out to be repair items, and replacement should follow a diagnosis rather than a guess. Start with a diagnostic on the system you have.
More on this:Heat Pump Repair & Service
Where we provide heat pump installation & replacement
This service is available to homeowners throughout our 20-mile service radius from Inwood, WV. Pick your town for local detail on the homes and equipment we work on there: