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Marran (Oil, Gas, and Security)HVAC contractor in Holtsville, NY

Marran (Oil, Gas, and Security) is an HVAC contractor at 20 Corporate Dr, Holtsville, NY 11742, ranked #7 of 586 HVAC contractors in Holtsville and rated 4.7 from 191 Google reviews. Open 24 hours a day, 7 days a week.

Holtsville, NYUpdated 0 paid placements in any rankingHow we rank

Call (631) 654-2500Website ↗

Key facts

Key facts about Marran (Oil, Gas, and Security)
Address20 Corporate Dr, Holtsville, NY 11742Get directions
Phone(631) 654-2500
Websitemarranoil.com
HoursOpen 24 hours, 7 days a week
Google rating4.7 from 191 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Holtsville and 11 towns within 25 miles: North Patchogue, Farmingville, Holbrook, Medford, Patchogue, East Patchogue, Ronkonkoma, Selden, Bayport, Bohemia and Coram.

Based in Holtsville, NYView on map

Opening hours

Opening hours for Marran (Oil, Gas, and Security)
DayHours
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
  • Open 24/7
  • Open evenings — no
  • Open Saturdays
  • Open Sundays
  • Emergency service

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

Marran (Oil, Gas, and Security) compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Marran (Oil, Gas, and Security) (this business)—624.7 (191)—YesYes
US Air Conditioning & Heating#5624.8 (582)—YesYes7.7 mi
Apple Air Heating Cooling Electric and Plumbing#6624.8 (4,690)—YesYes20.9 mi
Varsity Home Service#8624.7 (1,230)—YesNo4.5 mi

See all 586 ranked HVAC contractors in Holtsville

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.7from 191 Google reviews

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Questions about Marran (Oil, Gas, and Security)

How is Marran (Oil, Gas, and Security) ranked in Holtsville?

Marran (Oil, Gas, and Security) is ranked #7 of 586 HVAC contractors in Holtsville by CR Score, with 62 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Marran (Oil, Gas, and Security)’s hours?

Marran (Oil, Gas, and Security) is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

What areas does Marran (Oil, Gas, and Security) serve?

Serves Holtsville and 11 towns within 25 miles: North Patchogue, Farmingville, Holbrook, Medford, Patchogue, East Patchogue, Ronkonkoma, Selden, Bayport, Bohemia and Coram. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about Marran (Oil, Gas, and Security)?

Marran (Oil, Gas, and Security) has a rating of 4.7 from 191 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Marran (Oil, Gas, and Security)?

Call Marran (Oil, Gas, and Security) on (631) 654-2500. The business is at 20 Corporate Dr, Holtsville, NY 11742. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.

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