Best Licensed HVAC Contractors in Greenwich, CT
5 HVAC contractors registered in Greenwich hold current DCP licenses, verified against official records as of August 20, 2026. All 5 are listed below, ordered by years licensed.
- 14 current DCP heating, piping and cooling contractor licenses held in Greenwich
- 5 trade-name companies in Greenwich are backed by those personal licenses
- Scope tiers among Greenwich's licenses: 2 unlimited, 12 limited
- Median time licensed in Greenwich: 24 years
- Longest-standing license behind a Greenwich trade-name company: issued in 1990
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- Verified
- August 20, 2026
- Licensed since
- 1990
- Held by
- ROBERT L JONES
- Scope
- Limited
- Verified
- August 20, 2026
- Licensed since
- 1993
- Held by
- JOHN R PERRI
- Scope
- Unlimited
- Verified
- August 20, 2026
- Licensed since
- 2001
- Held by
- JAMES P CLARKE
- Scope
- Limited
- Verified
- August 20, 2026
- Licensed since
- 2013
- Held by
- STEVEN A ZYGMONT
- Scope
- Limited
- Verified
- August 20, 2026
- Licensed since
- 2018
- Held by
- FRANK R KASMARSKI JR
- Scope
- Limited
Compare the top 5 at a glance
| Company | License | Scope | Licensed since |
|---|---|---|---|
| Rlj Plumbing & Heating Co Inc. | #HTG.0308807-S3 | Limited | 1990 |
| Air Solutions Inc. | #HTG.0303695-S1 | Unlimited | 1993 |
| John M Clarke & Sons Inc. | #HTG.0392023-S5 | Limited | 2001 |
| Albert Zygmont & Son Inc. | #HTG.0404346-S3 | Limited | 2013 |
| Greenwich Heating & Cooling LLC | #HTG.0408030-G1 | Limited | 2018 |
Greenwich HVAC licensure at a glance
Connecticut licenses people, not companies, so this page counts both and says which is which: 14 current DCP heating, piping and cooling contractor licenses are held in Greenwich, and 5 trade-name companies are backed by those license holders. A business appears here only when licensed contractors operate under a registered trade name, and each listing names the person whose license backs it. The state also defines a scope on every credential: 2 of Greenwich's licenses are unlimited and 12 limited - shown as published, never ranked on, because scope authorises kinds of work rather than ordering quality. Tenure is what these pages rank on: the median Greenwich license has been held 24 years, and the longest-standing license behind a trade-name company was issued in 1990. Licenses here expire on one statewide date per trade each year, so an expiration date says nothing about an individual company and none is shown per listing - it gates currency only. DCP publishes no insurance, no bond and no phone for any licensee, so Connecticut listings show none of the three. eLicense cannot link straight to a record, so every listing above shows its number for you to paste into DCP's eLicense lookup. How we verify.
HVAC Contractors in Greenwich: common questions
How many licensed HVAC contractors are there in Greenwich?
14 current DCP heating, piping and cooling contractor licenses are held in Greenwich, backing 5 trade-name companies. 5 Greenwich-registered companies passed our license verification, and all 5 are listed on this page. Only licenses in DCP's four live statuses, unexpired at our data date, count.
Who holds a Connecticut HVAC license - the company or a person?
A person. Connecticut licenses people, not companies: a business appears here only when licensed contractors operate under a registered trade name, and each listing names the person whose license backs it. 2 of Greenwich's 14 licenses are unlimited scope and 12 limited - shown as published, never ranked on.
How do I check an HVAC contractor's license in Connecticut?
Every listing above shows the license number and names its holder. DCP's eLicense lookup cannot link straight to a record, so open it and type the number in. The median Greenwich license has been held 24 years, and the longest-standing license behind a trade-name company was issued in 1990.