Heat Pump Installation in Philadelphia, Sized to the House

Heat pump installation planned around the building, the load, and the existing systems. PA registration PA003700.

Heat Pumps for Philadelphia Homes

W.F. Smith installs ducted and ductless heat pumps in Philadelphia homes. A replacement estimate starts with measurements of the house, the existing distribution system, electrical capacity, and equipment location so the proposal reflects the actual project.

Every installation starts with the building rather than simply matching the equipment being removed. We review the load, ductwork or room layout, electrical supply, and outdoor-unit location before selecting equipment.

Signs a Heat Pump Fits Your House

A heat pump earns its place in some houses and not others. These are the situations where it usually wins.

  • The furnace is near the end and the air conditioner is the same age. One project replaces both.
  • The house has no duct path at all. A ductless heat pump reaches rooms no duct can.
  • Electric baseboard or resistance heat runs the bills up. A heat pump moves heat rather than making it.
  • A converted attic or an addition that never keeps up. A single zone serving that space fixes it.
  • You want gas heat kept for the coldest nights. A dual-fuel pairing hands heating back to the furnace.
W.F. Smith HVAC technician inspecting the air filters inside a wall-mounted air conditioning unit during routine maintenance.

What the Installation Looks Like

An installation is a scheduled job with a written scope.
Five stages cover it:
  • Free in-home estimate. We look at the house, the duct, the panel, and where an outdoor unit can sit.
  • Real measurement. Room-by-room heat loss and heat gain set the size of the equipment.
  • Written options. Usually two or three systems, with the cost of each laid out and no push toward the top.
  • Installation. Line sets, condensate, electrical, and duct connections, with the outdoor unit set where agreed.
  • Commissioning and registration. Charge, airflow, and defrost get verified, then the equipment is registered.
Heat pumps fail on install detail, not on the badge.

How We Size a Heat Pump for a City House

A real measurement of the house decides the size, not floor area. Two houses with identical square footage can need different equipment. Insulation, window area, orientation, and the path air takes between floors all count. The measurement takes about an hour during the estimate.

Oversizing is the common error. Too much capacity short cycles, which wears the compressor and leaves moisture in the air all summer. Undersizing is easier to spot, since the system runs flat out and still loses ground.

Sizing also sets a balance point — the outdoor temperature where backup heat takes over. Set it too high and the backup runs more than it should.

Ducted, Ductless, and Dual-Fuel

What Heat Pump Installation Costs in Philadelphia

The estimate is free and the price follows the survey. Equipment, duct condition, electrical supply, and where the outdoor unit can sit all feed into it, so we don’t quote a heat pump over the phone. Three things move it most.

  • Ducted or ductless. A multi-zone ductless job prices by the number of indoor heads.
  • Electrical supply. An older panel may need attention before a heat pump can be added.
  • Placement. A roof or bracket mount takes more work to set than a pad in a rear yard.
HVAC technician completing an air conditioning inspection checklist beside an outdoor AC unit to assess commercial cooling service needs.
Our prices hold through the year. Manufacturer rebates and the Electrical Association of Philadelphia program often apply to heat pump projects, and financing is available for qualifying work. Both go in writing with the estimate.
HVAC technician completing an air conditioning maintenance checklist beside an outdoor residential AC unit.

Why Philadelphia Homeowners Choose W.F. Smith for Heat Pump Installation

  • A real measurement before a model number. The house sets the size, not the equipment that came out.
  • Placement settled at the estimate. You know where the outdoor unit goes and how the line set runs.
  • Written options at more than one price. Two or three systems side by side, with no push toward the dearest.
  • Registered on completion. Equipment is registered at commissioning, and we confirm what that does and does not add to your coverage.

Heat Pump Questions We Get Asked

What does a heat pump estimate cost?

Nothing. Estimates on a new or replacement system are free, and that covers the real measurement, the duct assessment, and written options at more than one price. The diagnostic fee is a separate thing and applies when a technician comes out to find a fault on a system you want repaired — our office confirms that fee before dispatch, and it’s higher in Center City ZIP codes.
Modern cold-climate heat pumps hold useful capacity well below freezing, which covers most of a Pennsylvania heating season. Sizing decides the outcome, not the badge on the box. We measure the house and design for the coldest stretch it actually sees. Where a homeowner wants gas heat kept for the worst nights, a dual-fuel setup hands the load to the furnace.
A straight changeout on existing ductwork usually finishes quickly. If duct has to be added or reworked, plan on longer. A multi-zone ductless installation typically takes a bit more time, depending on the number of indoor heads and how far the line sets travel. Every job carries its schedule in the written estimate, so the timeline is agreed before anyone starts.
Not always, but the duct gets assessed before anything is ordered. Heat pumps move a larger volume of air at a lower supply temperature than a gas furnace, so duct that suited the old system can be undersized for the new one. We measure static pressure and check the return path. Often the fix is a larger return or a rebalance rather than new duct throughout.
Three placements cover most city homes: a rear yard or courtyard pad, wall brackets, or a flat roof. Each carries its own clearance, noise, and access consequences, and each changes how the line set is routed. We settle the placement during the estimate rather than on installation day, since it affects the equipment we order and the price. Roof and bracket mounts get a structural check.
Yes, and that’s what a dual-fuel system is. The heat pump handles cooling and most of the heating season on its own. When the outdoor temperature drops past the changeover point we set, the control hands heating to the gas furnace. Homeowners who want to keep a furnace that still has years left in it usually end up here.
Only a real measurement answers that. It accounts for square footage, insulation, window area and orientation, ceiling height, air leakage, and how many people live in the house. Rules of thumb based on floor area alone routinely oversize a system, and an oversized heat pump short cycles and leaves humidity behind in summer. The measurement is part of the free estimate.
Two visits a year, since the equipment works in both seasons rather than one. A technician checks refrigerant charge, airflow, the defrost cycle, and the electrical components at each visit. Filters need changing every three months, more often with pets or allergies. Keep the outdoor unit clear of leaves and drifted snow, and leave room under it so defrost water can drain.

Heat Pump Only or Dual-Fuel?

Get a Free Heat Pump Estimate