Public evidence profile · Checked May 2026
Sigma Air Conditioning
Trust Score
44out of 100
- Rated 5.0 from 15 reviews
How this score is worked out
Rating5.0 / 5
Review volumeLow · 15
Independent sources1 independent public source
CredentialsNo credentials shown yet
How this score is made up
What customers say30.5 of 66.9
Independent checks13.8 of 16.2
Track record0 of 16.9
See the independent checks
- Ways to reach them13.8 of 16.2
Missing evidence lowers the score because we can't check it. It doesn't mean it doesn't exist. Claiming a profile never changes the score. Evidence context, not a guarantee of workmanship.
Reviews · public evidence
What customers say
These review totals are published independently on the named public source below, not testimonials this business chose to show. We show the aggregate rating, review volume, and source attribution we hold so you can weigh the evidence yourself.
5.0out of 5
Where these reviews are published
- Porch15 reviews · 5.0 avg
Sources
1 named public sourceWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Public evidence last checked May 2026
About
Sigma Air conditioning is an air conditioning, heating, installation, repair, and maintenance company serving the greater New York City area.There are several things you need to keep in mind before you hire any air conditioning service.You need to work with companies you can trust and ones that have... Read more about Sigma Air Conditioning
Your own checks
What to check before you hire
Worth checking yourself
Only a few public reviews are shown. Ask for recent references you can contact.
Their public evidence comes from a single source. Look them up on another site before deciding.
No credentials are shown here and the business has not claimed this profile. Ask to see certificates and insurance directly.
Contractor licensing in the US is set by each state (and sometimes the city or county). For electrical, plumbing, HVAC or any major build, confirm the trade is licensed on your state's licensing board before hiring. Unlicensed work where a license is required can void permits and insurance and leave you no recourse.
Ask for a lien waiver as you pay each stage: in most US states an unpaid contractor or subcontractor can place a mechanic's lien on your home even if you already paid the main contractor, and a signed waiver is your protection.
Confirm they cover your area and can actually come out in your timeframe before anything else.
Want an extra legitimacy check? Run the Rogue Contractor Check on Sigma Air Conditioning before you contact them.
Run Rogue Contractor Check →Good to know
Common questions about Sigma Air Conditioning
Is Sigma Air Conditioning a legitimate business?
Sigma Air Conditioning has 15 independent public reviews, rated 5 out of 5. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about Sigma Air Conditioning?
Sigma Air Conditioning has 15 public reviews, averaging 5 out of 5. The reviews section shows the aggregate rating, review volume, and review source information we hold.
How do I know Sigma Air Conditioning's reviews are genuine?
Sigma Air Conditioning's 15 public reviews come from a named public review source. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show the review source information and aggregate rating we hold rather than selling rankings, so you can weigh the evidence for yourself.