So glad we gave Marran a call when we needed our oil burner replaced. The guys were great... courteous, professional, and took great care to protect floors, patio etc while they worked. Excellent workmanship, and a great price... highly recommend!

I had a new oil tank installed today by Jose and Nick from Marran Oil. My old tank was on the verge of leaking and was actually the original oil tank, installed when the home was built over 60 years ago.Jose and Nick took the time to explain the job to me and carefully measured everything and were very considerate, taking care of protecting walls, doorways and floors. They worked as a team all the way and were very professional and left my home spotless.Joe, the salesman, was gracious and knowledgeable and put my mind at ease from the start. I couldn’t be more satisfied with the end result…a beautiful oil tank. I now can breathe with the winter coming and not worry about an oil leak. I highly recommend this heating/cooling/oil company to anyone looking for a new one.

We recently moved into our new home and needed to find an oil company for a small emergency. After calling around the island Marran was the only one who could come right away. Our technician Garrett was awesome, knowledgeable, and handled everything with care! Highly recommend! We will be using Marran moving forward for all our heating needs.

Recently received an annual tune up. These guys hands down the best in the business. Customer friendly, reliable and always there for you 24/7.

Would recommend to anyone everyone is extremely friendly and professional. Had them do a new Installation on my home and I have no complaints! Fair price clean install. Check out the before and after. I use them for service as well as oil delivery. Definitely recommend! The overflow drains were altered by myself thanks guys!

Fantastic experience with Marran Oil. I needed a new boiler. I asked for several estimates. Marran had, by far, the best price for an Energy Kinetics boiler. Joe the salesman was upfront, honest, and a pleasure to speak with. Jose and Nick, the plumbers, worked all day. They answered all of my questions about the new burner. They left the room spotless. I would highly recommend Marran Oil to anyone looking to by a new heating/cooling system.

Just had System 2000 oil boiler installed. Jose and crew were clean efficient taking out old system and installing new system. Joe in office was very informative and excellent customer service. Would recommend Marran to everyone!!

Highly recommend! Had a peerless boiler installed, the 2 techs who were awesome showed up right on time and did an amazing job. And took the time to show me and explain what they did. Very professional, I would 100% use their services again and will definitely recommend to my friends and family!

Just had an Energy Kinetics Boiler installed. Absolutely great experience. From sales with Joe to install by Jose and Nick! Reasonable price, clean and meticulous installation. Would recommend this company to anyone with this excellent service. Thanks! Scott

Serviceman found a slight spray of water that has been there a long time and told me to make an appointment for a $600 fix. Several days later, there was a flood caused by what became gushing water. My partner came to the rescue by simply tightening the bolts. While expressing my upset to Mr. Marran, he said they do not tighten bolts and that he cant help me with the damage from the flood. And you wont sue me because the attorneys fees will be too high. He then ignored my emails. Zero integrity. I would never recommend this company to anyone.

I have been a customer of Marran for nearly 50 years and have received nothing but excellent service and competitive oil prices from the company. In addition to buying our oil from them, we have had them service our air conditioning system, and several years ago they installed a new boiler and oil tank. In all interactions, from the office reps who answer the phone, to the oil deliverers to the technicians, Marran seems to hire only the best.A great company. I would never leave!

I have solar no oil or gas lol

Dear Mr. Jack Marran,I wanted to take the time to praise you on my experience with your wonderful Tech that replaced the coil on my oil burner today. His name is Tommy Z. He was very knowledgeable, friendly, polite and extremely meticulous. A job well done!!

Marran continues to be the most professional heating and A/C organization I have ever dealt with. They show up on time. The servicemen are excellent and Im very happy with their service.

Always great service, friendly and reliable. They keep me informed about timing, when their guys are on the way, and how much time something will take. Never had that kind of service from other oil companies. My parents used Marran and now I do also.

4/17/2019: This update reiterates the 5 star review from last year. This past Monday, the controller on our boiler failed and we found ourselves without hot water at 8:30 PM. Jesse was at our house by 9:45, replaced it, and was on his way about an hour later. I wanted to register a big Thank You to Jesse and Marran for helping us in a pinch.We had a hot-water storage tank installed today, as well as wiring for two digital thermostats. Both techs (Rich and Mike) went above and beyond in helping us. The water tank was a super-clean install and the thermostats work flawlessly. We recently bought our house and signed a contract with Marran as they serviced the location for the previous owners. Im definitely happy thus far.

This past August we had a new boiler system installed by Marran, Joe W. was the salesperson. He coordinated the entire job and watched over his crew which were very neat, clean, knowledgeable and Friendly. The new system runs perfectly. Would recommend them to others who need a new boiler and hot water tank. Thanks again Joe. Friends in Mt Sinai.

Great service and care. The guys came in and replaced my tank and even cleaned the area and helped me with an issue on the stove top. 5/5 stars for sure!

Your techanian CHarlie, A former employee recently returned. I welcome back and was impressed with his detail attention to the job at hand. He was in Just down the block from my house and showed professionalism in advising Dispatcher . The orginal appointment was between (2- 6). dispatcher called me at 11:30am . Charlie showed up 15 (fifteen minutes) later. Now than SERVICE!

I had Marran install an alarm and signed up for 24/7 monitoring. More than fair prices, quick response. Never have to wait when I call them. No complaints.

This was a routine service call for the winter season. The tech cleaned and adjusted the burner and boiler. I noted one of two bleeders was leaking and he replaced both bleeders with another brand that is a better quality.I have been a customer for a few years now, and will stay with them as long as they keep providing the service level they have.

I had them install central air conditioning for my house and a ductless unit for my mother in law four years ago. We have been very happy with both systems. The house cools down very quickly when turn the ac on.This past winter I had them start delivering oil and servicing my boiler. I also had them start monitoring my alarm. I have been very happy with both. My boiler stopped working one night and they had fixed for free before my kids bedtimes.I havent had any attempted robberies, but the one time my sister set off the alarm by accident, the alarm definitely went off.

Their technicians all seem really experienced. When Ive had problems with my furnace, theyve been able to fix it very quickly. They also show up quickly when I call with a problem, even the time I called at 1am.With them, Ive never run out of oil.

Friendly, knowledgeable and accommodating technician. Reasonably priced. I was very happy.

Brian came to our home for our first service calln and did a great job. I recomend Marran Oil

Service rep came as scheduled. Was polite and personable. Did a complete service on our heating system. Have had great service from Marran for over 22 years.

Had my energy kenetics system 2000 service today. The technician Jesse was on time and answered several questions that I had about the tune up.Very satisfied. I highly recommend Marran for service.

Joe W was very informative and helpful with helping us with decide on a new burner. He was quick on getting us scheduled. Thanks so much for everything! Tracey and Mike Dubois

There is no hold time when they answer the phones. It might seem like a small thing, but thats so rare nowadays. Its so nice to just be able to call when my gas heating system has a problem and immediately be able to speak to someone. At my old gas service company, the salespeople were the only people you could speak to immediately. You had to wait half an hour to schedule a repair. Marran also replaced my old gas heating system with a gas heating system. Im very happy with the new system.

Professional and courteous, it was a tune up maint, but the tech showed up at the designated time and did a thorough cleaning. Of my system. Satisfied with work.

Courteous and very professional service mechanic. Excellent workmanship.Thank you. Sal La Lima.

Wonderful family run company. They look out for your interests like a friend instead of trying to sell you stuff. They always deliver, and there are never cold weather price hikes.

Technician was cooperative Very friendly did a thorough job and didn’t make a mess I was completely satisfied

Came and spent a few hours fixing the problem and checking the system... home is nice and toasty now..

The A/C system they installed worked perfectly all last summer. Im looking forward to weather in which I can use it again this summer!

Tommy Z. is the most professional and customer service in the business. I trust his work explicitly and value his expertise. He is the main reason I continue with Marran!! Thankyou Tom!!

Woke up to no heat or HW. Called Marran, spoke to a live person, an within a hour or so had both heat & HW. Thanks for the personable, professional & prompt service.

Marrans service is excellent, and at an excellent price. I have made back my money on the service policy many times over because whenever something on my boiler breaks, its covered.

The technician was on time, friendly, neat, professional and knowledgeable. Excellent experience.

Based on my experience with two other oil companies, I think this one must offer the best service in Suffolk County, bar none.

The service man was on time respectful, clean and explained everything to me.

The service person was knowledgeable and courteous and successfully repaired the problem

We have been customers for over 25 years. Great company, great service.

Andrew was very helpful. Great employee

Marran continues to provide us with excellent customer service.

I had maybe 25 years of experience as a Marran customer, never had a major problem until I talked my son into using them for security about 6 years ago. He signed a five year contract with them because of my recommendation. Marrans part of the contract was to provide an alarm system for fire and theft, My son had many problems since they tried to get an old system working, and It never did work . after countless repair visits and many costly false alarms he had no choice but to get another company (Petro) to correct the situation since he feared for the safety of his family. At this point he had honored the contract for about 3 years at the time. He is now a loyal customer of Petros. Repeated attempts to cancel this contract with Marran failed. Marran continued to harass him with bills, collection agencies and finally small claims court where he was among many other marran customers in similar situations. So if you sign any contract with Marran, including oil or a/c service I would have a lawyer check it. I had recommended other customers to Marran over the years who will now become aware of this problem I had with them and hopefully reconsider doing business with them, I would also get a second opinion if they send a service man who tells you you need a new boiler or a/c system, because thinking back i was told both in a previous home. I was talked into an expensive boiler which happened to be a Marran brand, then when I was told years later I needed a new central air system I got a second opinion and repaired my system for pennies compared to their estimate, BE CAREFUL!!!

Got over quickly, solved the problem, fixed the problemtold us all about it. Nice young man.

UPDATE -Never ran out of oil/my pipes never frozen - delivery was made the day after the snow storm; according to Mr Marran the delivery was indicative that I had more oil than my gauge had indicated. Being a homeowner with oil heat for the first time (previous house gas) I was going off of what I was reading on the gauge, which indicated under 1/8 tank.New customer/ 1st time oil user. Signed a contract 2 months ago.You guys tout automatic fills. Got a call on Thursday 12/28 (asking for payment) and also saying we were due for a delivery based on your estimate, and that it was being scheduled.Come yesterday 1/3, I realize a snow storm is coming and I dont recall receiving a receipt from you... go check my gauge and I am at 1/8 tank. I have a 2.5 year old and have the impending storm... So Im concerned.I call at 730am on 1/3 and am told a ticket was created for delivery. I ask when it will be delivered. No one can tell me. Im told I have access to emergency services if I run out of . Exactly what I want to hear.I ask why I received a message on 12/28 that I was being scheduled for delivery and never received. No one can tell me. They say maybe someone was sick or there was an issue with the truck... I ask how long after a call I should get a delivery. No one will answer me.Im told if I have any issues to call their number even in a storm. Call today 1/4. On hold for awhile. Get answering service who tells me she will have someone call me back. Waiting.So... now I have to decide between cranking the heat in the case power goes out to keep my kid warm, or keeping the house cold to extend oil as long as possible.Seems to me that if you cant deliver on the terms of my contract you are in breech.In summary, YOU called ME 12/28 to say we were due oil and delivery would be scheduled. That never happened, even after I called to tell you I had 1/8 A tank On 1/3 (I now have less) and no one is around today 1/4.Ive been told maybe there were truck issues or scheduling issues, that you were busy due to the cold.As someone also in a customer facing job, I can tell you that much like my clients dont want to hear excuses from me, I also dont want to hear them from you.I signed a contract with the understanding Id never have these concerns. Now your best response to me wanting to know WHEN I would have oil is IF I RUN OUT OF OIL, I have access to emergency service.Not - you will have oil in 24 hours, or before you ruun out.Unacceptable.Update - got a call back. Said no deliveries today due to state of emergency.I get it. I want people to be safe too. And warm. Which is why I called yesterday. At 730am. After you told me 12/28 a scheduled refill was coming up.

Great Service Honest and very helpful

Well known for its service and well deserved, always friendly and prompt.

Been with Marran for over 25 years. I highly recommend them.

Great service and reliabilityBeen a customer for years !

My family has been using Marran Oil forever. My brother switched to Petro and then switched back to Marran because he was not happy with Petros 4 day response time when he wasnt getting any hot water.

I just switched to Marran after my old companys service was lacking.I was a Petro customer and I tried to switch to Meenan because Petro has clearly gotten too big to care about their customers. I had almost switched to Meenan when I read an online review that said that they were owned by Petro. When I asked the person at Meenan who tried to sign me up, about it she said that it was a sister company. What manipulative bull****. I looked it up online and lots of sources say that they are owned by the same company.I havent been with Marran long, but my first furnace maintenance was excellent and Im just happy to be out of the Petro empire. I will update my review if they end up being awful too.

Always polite and a pleasure to deal with. Have been with Marran for over 15 years. Customer always comes first!!

Came early and did great job

The repair technician was prompt and he was able to quickly diagnose the problem with my broken boiler.

Great service and friendly helpful people

Excellent job . Thank you.

Very friendly and knowledgeable.

My family has had nothing but positive experiences with marran for the past 10 years

Great service!

They suck