Heat Pump Installation & Replacement in Northern Virginia & Maryland

Is a Heat Pump Right for Your Home?

A heat pump is the only single system that both heats and cools. In summer it works like an air conditioner; in winter it reverses and pulls heat from the outside air into your home. The real question isn’t whether the technology works — it’s whether it fits your house. Here’s how the main options compare for a typical Northern Virginia or Maryland home:

Heat pump vs. gas furnace: A heat pump replaces both your AC and your furnace, running on electricity alone. In our climate, a quality heat pump handles the vast majority of winter days on its own. A gas furnace delivers hotter-feeling air on the coldest nights and keeps working during extended deep freezes, but it only heats — you still need a separate AC.

Heat pump vs. dual fuel: A dual-fuel system pairs a heat pump with a gas furnace. The heat pump does the efficient everyday heating and all the cooling; the furnace takes over automatically when temperatures drop below the switchover point. For homeowners in Fairfax County and Montgomery County who already have gas service, this is often the most comfortable and flexible choice.

Why Don’t Contractors Like Heat Pumps?

You’ve probably heard this question — or asked it yourself. Here’s the answer: some contractors don’t dislike heat pumps; they dislike the callbacks that come from bad installs. Older heat pumps genuinely struggled below freezing, and a heat pump that was sized wrong or installed without checking the ductwork made for an unhappy winter and an unhappy customer.

There are two other reasons you’ll hear. First, heat pump installs are more complex — refrigerant charge, defrost controls, backup heat wiring — and not every crew is trained for them. Second, some companies simply sell more of what they know. None of that is about whether the technology works. Today’s cold-climate heat pumps operate at temperatures far below what older models could handle, and when the system is sized correctly and the ductwork is right, homeowners stay comfortable all winter. If a contractor tells you heat pumps “don’t work here,” ask them when they last installed one — and get a second opinion from us. We’ll give you an answer for your specific home in a free estimate.

Signs It Is Time to Replace Your Heat Pump

Heat pumps run year-round — heating all winter, cooling all summer — so they wear faster than a furnace that rests half the year. Most last about 10–15 years, longer with regular maintenance. Replace rather than repair when you notice:

• Age: Your system is 12+ years old and repair bills keep coming.
• Rising energy bills: The heat pump runs longer cycles but your comfort hasn’t improved — efficiency is slipping.
• Blowing cool or lukewarm air in heating mode, or weak airflow in cooling mode, even after a tune-up.
• Frequent repairs: If a repair costs a big chunk of a new system and the unit is past its prime, replacement wins on math.
• Uneven temperatures room to room, or the system can’t hold the thermostat setting on moderately cold days.
• Outdated refrigerant or parts: Older units using phased-out refrigerants get expensive to service.

Not sure whether yours is worth fixing? If a repair makes more sense, we’ll say so. See heat pump repair.

Heat Pump Types We Install

Ducted heat pumps: the classic whole-home setup: an outdoor condenser paired with an indoor air handler or furnace coil, using your existing ductwork. Best choice when your ducts are in good shape and you want one system for every room.

Ductless mini-split heat pumps: no ducts needed. A slim outdoor unit connects to wall-mounted indoor heads, each with its own thermostat. Ideal for additions, finished basements, older homes without ductwork, or rooms that never stay comfortable. See ductless mini-split installation.

Dual-fuel systems: a heat pump plus a gas furnace in one integrated setup, with controls that switch between them automatically at the most efficient point. Maximum comfort on the coldest nights, maximum efficiency the rest of the year. Compare furnace replacement and installation.

Every installation includes a written price before we start.

Sizing and Cold-Weather Performance

A heat pump that is too small runs constantly and still leaves you cold; one that’s too big short-cycles, wastes energy, and fails to dehumidify in summer. Size should be calculated from your home’s square footage, insulation, windows, ductwork and layout, measured in tonnage and BTUs, not guessed from the old unit’s nameplate. Your free estimate includes a sizing recommendation.

What Is the 20-Degree Rule?

The “20-degree rule” is a rule of thumb, not an equipment spec, and people use it in two ways. In cooling mode, it means an air conditioner or heat pump can usually keep your home about 20°F cooler than the outdoor temperature. In heating mode, people use it to ask how cold it can get before a heat pump needs help.

What decides that is your home’s balance point: the outdoor temperature where the heat pump alone can no longer replace the heat your home loses, so backup heat (electric heat strips or a gas furnace) starts helping. Older heat pumps reached that point at fairly mild temperatures. Modern cold-climate heat pumps keep heating well below 20°F. Where your balance point lands depends on the unit’s rated heating capacity at low temperatures (cold-climate models publish it) and how well your home holds heat. During your free estimate, we’ll show you how your home would perform on the coldest nights, including whether a dual-fuel setup makes sense.

Also worth knowing: SEER2 measures cooling efficiency and HSPF2 measures seasonal heating efficiency. We’ll explain both and match the rating to your budget and how long you plan to stay in the home.

Heat Pump Installation Cost

“What should heat pump installation cost?” is the question every homeowner asks first: it depends on the type, size, efficiency rating, and your home’s ductwork and electrical setup. The tables below come from our published heat pump installation cost guide.

Heat Pump Cost Comparison (total installed)

Heat Pump Cost by Capacity

Replacement note (same guide): A straightforward heat pump replacement typically runs $3,000 – $6,000; replacing the heat pump and air handler together usually runs $4,000 – $9,000; if new or modified ductwork is needed, the total can reach $15,000+ depending on the home.

Tables give you a range; your home gives you a number. Get your free written estimate — VA 703-457-9028 · MD 301-686-7129. For brand-by-brand pricing, read the full heat pump installation cost guide or what a heat pump replacement costs.

Rebates and Tax Credits

Federal, Virginia, Maryland, and utility rebate programs for heat pumps change frequently — what’s available depends on the equipment you choose, your income tier in some programs, and when you buy. We don’t publish amounts here because yesterday’s number may not be today’s.

When we prepare your estimate, ask us which rebates and tax credits apply to your home and we’ll walk you through the programs we’re aware of at that time, and what paperwork you’ll need.

Financing Your New Heat Pump

A new heat pump is an investment: Wells Fargo financing with 0% APR for up to 18 months on select units, plus zero-down plans. Approval is subject to the lender, and we’ll walk you through the options during your estimate.

Heat Pump Brands We Install

We service and install all major brands — Trane, Carrier, Lennox, Rheem, Bryant, York, Goodman, Amana, Mitsubishi, American Standard, and Ameristar. We match the equipment to your home, your budget, and the efficiency you want. Every install comes with the manufacturer’s equipment warranty.

Why Homeowners Choose AVS for Heat Pump Installation

• Family-owned since 1991: More than 30 years of HVAC service in Northern Virginia and Maryland.
• Seen on ABC7 News: Anil Sareen of AVS Heating and Air Conditioning was interviewed on ABC7 News.
• Licensed in Virginia and Maryland: Virginia HVAC 2705039269A · Maryland HVAC 520714137895 · Maryland Home Improvement 4192876.
• Three local offices: Fairfax, VA · Falls Church, VA · Bethesda, MD.
• 4.8★ on Google: 354 reviews across our three offices.
• All brands serviced: Carrier · Trane · Lennox · Bryant · Goodman · Rheem · York · American Standard · Amana · Mitsubishi.

Commercial Heat Pump Installation

AVS also installs and replaces heating and cooling systems in shops, offices and other commercial buildings across Northern Virginia and Maryland. See commercial HVAC installation, repair and replacement.