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How long does a heat pump installation take in Philadelphia?

In Philadelphia, the typical finished heat pump installation took about 8 months (229 days) from permit to final inspection (538 finished of 564 permits issued from September 2022 to September 2024; 5% had no final inspection on record by September 2026).

8 monthsfrom permit to final inspectionMiddle half: 4 months to 12 months

The two steps

How long heat pump installations take in Philadelphia, in daysPermit issued to final inspection: median 229 days, middle half 136 to 380 days, 538 permits.Permit issued to final inspection: about 8 months03 mo6 mo9 mo12 mo
Bars show the median; the line through each bar spans the middle half of jobs.
The numbers behind the chart
StepMedianMiddle halfPermitsPermits issued
Permit to final inspectionabout 8 monthsabout 4 months to about 12 months538September 2022 to September 2024

Heat pump installers with the most jobs in Philadelphia

RankContractorJobsContact
1Sanks Mechanical
56
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2Angel Heating & Cooling Inc
38
Visit website
3A & G Heating and Cooling LLC
36
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See all 82 ranked heat pump installers

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Why it takes this long

  • 14% of finished jobs passed final inspection within 90 days of the permit.
  • Of the 564 permits issued from September 2022 to September 2024, 26 (5%) had no final inspection on record by September 2026. They may still be under way, dropped or never inspected; the records do not say which. They are left out of the build time; any of them that finishes will have taken more than two years, so counting them would make the typical time longer.
  • The permit wait is not shown: the city's permit data has no application date.

Days are counted between the dates on each city permit: permitissuedate, permitcompleteddate. Median and middle half: half of the jobs took longer than the median; the middle half runs from the 25th to the 75th percentile. A figure is shown only when it rests on 30 or more permits. Kinds of work are sorted by the same rules as our contractor lists. Source: Philadelphia Licenses and Inspections, Building and Zoning Permits (phl.carto.com permits), read 2026-09-24. The same figures as data: heat-pump.json.