Fjn Developement Corp
Heat pump installer based in Staten Island.
- License active
7 jobs on New York permits, 2025 to 2026: 6 heat pump installations, 1 ADU. 29th most heat pump permits of 118 contractors in New York.
What the public records show
From the city's license records and the city's permits, one question at a time.
| Question | Records show | Mark |
|---|---|---|
| Licensed? | License 614898, active in the city's records on Sep 24, 2026General contractor | Checks out |
| Jobs on record | 7 jobs on New York permits, 2025 to 2026: 6 heat pump installations, 1 ADUThey are based in Staten Island. Work outside New York is not in these records.29th most heat pump permits of 118 licensed contractors in New York. That counts jobs, not quality.Our New York permit records cover September 2021 to September 2026. |
Records: the city Department of Buildings and City of New York permits.
Cost and timing
Permit timeline
Across New York, a heat pump permit stays open about about 6 months, from permit to final inspection
This is not how long the crew works at your home: most of it is waiting for the inspection. Ask them how many days the work takes. Waiting for the permit adds about 57 days. How long heat pump jobs take.
Track record
5 jobs in the last 12 months, up from 2 the year before
Where they work most
- 103124 jobs
- 103092 jobs
- 103141 job
Jobs by kind of work
- Heat pump
- ADU
Latest jobs
Permit values are what the contractor wrote on the permit form, not what the owner paid.
| Date | Work | ZIP | On the permit form |
|---|---|---|---|
| Feb 10, 2026 | Heat pump1) installation of split system heat pump for heating and cooling ofeach residence.2) installation… | 10312 | not stated |
| Feb 10, 2026 | Heat pump1)installation of split system heat pump for heating and cooling of each residence | 10312 | not stated |
| Dec 17, 2025 | ADUConstruct a 3-story, one-family detached residence with one off-street parking space, and an… | 10314 | not stated |
| Oct 24, 2025 | Heat pump1) installation of split system dx heat pumps for supplementalheating and primary cooling.2)… | 10312 | not stated |
| Oct 24, 2025 | Heat pump1) installation of split-system heat pump units for heating andcooling of each residence | 10312 | not stated |
| May 22, 2025 | Heat pump1)installation of split-system dx ac units for cooling and combi-boiler with fin-tube radiators for… | 10309 | not stated |
| Mar 18, 2025 | Heat pump1)installation of split-system dx ac units for cooling and combi-boiler with fin-tube radiators for… | 10309 | not stated |
What to ask before you hire
About Fjn Developement Corp
- Ask what the warranty covers and for how long, in writing.
- Search their name on the Better Business Bureau site, and read their reviews.
Worth asking any heat pump installer
- Can you show me proof of liability insurance and your bond?
- What size unit, and did you measure the house to choose it?
- Do my ducts or my electrical panel need work first?
- Who pulls the permit, and what rebates apply?
Get a quote from Fjn Developement Corp
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Your job room keeps the request, your photos and every reply in one place, with an assistant that checks prices against city permits. Keep its link: it is the key to your job.
Open your job roomMore heat pump installers near 10312 and 10309
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- Chester Builders Corp
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See all 118 heat pump installers in New York, ranked by jobs
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