Welcome to my bio, Mark here @ Sheehan GMC . Looking forward in serving all your Automotive needs. Direct # 954-793-6617 " Miles of Smiles"
Read moreDealership Experience
5 yrs, 6 mos
Industry Experience
29 yrs, 4 mos
Specialties & Trainings
Diesel Expert , HD, Certified, High Performance Specialist , Heavy Line, Jap, Domestic, Import, Euro,
Lift Kits, Ceramic, Wraps, Modified High Performance , Forced Induction Turbo Applications, Cams,
22 Reviews
Write a Review22 Reviews of Mark Estridge
December 11, 2025
Sheehan GMC/Buick: Where Sheehan is Believing? Perhaps a more accurate statement is Unbelievable. See the email sent to Tom Sheehan from my wife on November 7, about the treatment we have re Perhaps a more accurate statement is Unbelievable. See the email sent to Tom Sheehan from my wife on November 7, about the treatment we have received since the start of our lease. Of note, there has been NOT ONE MEMBER of Sheehan Leadership who has reached out since her email. "Dear Mr. Sheehan: I am writing you after speaking with your sales team. Since the inception of my GMC Acadia lease, my husband and I have had nothing but problems with your service department, including service technicians, service advisors, and even your assistant and service manager. Before I continue, I would however like to say that the GMC Sales Department has been a delight to work with, and I have recommended several friends and family to the dealership to see Mark. However, your service department has been absolutely abysmal to work with. Please allow me to elaborate further: During the first service visit after my lease, a service consultant informed me I needed new filters and would cost me hundred of dollars. I explained this was a showroom model lease (it already had 5k miles on it at the start of the lease) and this should have been changed before giving the vehicle to us or should be covered. Additionally, during the normal service the car was not washed or cleaned. Fast forward to all the oil changes/tire rotations since, NOT ONCE during service has the vehicle at any point between inception and present day despite assurances from advisors. POINT OF ENTRY: Service advisors have sat there, while I, or my husband waits, not recognizing, or even making an effort to engage with us when we come in for service. My husband, during the last service waited over 20 minutes for one advisor, while the others refused to assist or acknowledge him. This should be a basic customer service staple, merely recognizing customers, and asking if they can be of assistance. When one advisor is five people deep and the others have no one, why aren’t these advisors engaging with these customers, so they don’t have to wait? MANAGING OF EXPECTATIONS/TIMELINES: Repeatedly during our services, there is either a refusal to provide a timeline, or worse, a timeline is given, blown past, and no service advisor returns multiple calls. It should not take an entire day to executive a basic oil service or tire patch. FAILURE TO IMPROVE/SERVICE MANAGERS DROPPING THE BALL: Most recently, we have brought this to the attention of your cashier desk, assistant service manager (Kristy?), and even posted a Google Review about our poor service. We were told she and her service manager would get in contact with us, they agree these things shouldn’t be happening, and they would improve. We never received the promised meetings or even the courtesy of return phone calls from the asst service manager or service manager. TODAY: We continued having an issue with a tire from the first quarter of this year. We had brought it in for service, they “patched it” and yet it continued to slowly leak over the service meetings, but when we brought it to their attention, they stated, until today, they never found anything wrong with the tire. Today, the front right tire was revealed to have a leak in the tread edge. This would need a “replacement” for $339 for the tire. As the tires have a 55k mile warranty, we asked if they could reach out to Michelin to ascertain a prorated amount to replace all four tires. We were told by the service advisor Andrea, that Sheehan does not do that. Having contacted Michelin we were told that ABSOLUTELY the dealership or authorized Michelin Dealer is responsible for issuing insurance claims. I sincerely hope you look into this. I know Sheehan has a great reputation out in the community. Our family has received excellent service from your sales team over the years. We sincerely wish we could say the same about the service side." Needless to say, we DO NOT RECOMMEND this dealership in any cap More
October 30, 2025
Very pleasant sales process and delivery with no issues or surprises. They were very good at finding the RIGHT Financing Company with whom all went really quickly along with thorough explanation. Sheehan w or surprises. They were very good at finding the RIGHT Financing Company with whom all went really quickly along with thorough explanation. Sheehan was a TOP quality organization from top to bottom. More
Other Employees Tagged: MICHAEL BONN
September 17, 2025
Excellent overall experience! ! Mark was amazing! He went above and beyond my expectations extremely happy with my new Sierra 1500! ! Mark was amazing! He went above and beyond my expectations extremely happy with my new Sierra 1500! More
Other Employees Tagged: Mark Estridge
April 12, 2025
I was very happy with Guy. He was great, very knowledgeable and most of all he had patience with me because I have PTSD from Vietnam the other staff for great there😀👍 He was great, very knowledgeable and most of all he had patience with me because I have PTSD from Vietnam the other staff for great there😀👍 More
Other Employees Tagged: CLAUDE EASTWOOD, Thomas Caputo, Yad Aflalo, DOMINICK DIROBERTO, MIKHAIL FATAHOV, GUY FUSCO , Fred
November 12, 2024
I received excellent service from Mark Estridge. I am excited to drive/own my new HummerEV SUV. I am hopeful for a long positive relationship with this dealership and with Mark, who is my concierg I am excited to drive/own my new HummerEV SUV. I am hopeful for a long positive relationship with this dealership and with Mark, who is my concierge. More
October 29, 2024
Overall a good experience. The negotiation took too long, but once that was done they went Above and Beyond to make it happen in the time I had available. The after sales sup The negotiation took too long, but once that was done they went Above and Beyond to make it happen in the time I had available. The after sales support was Second to none]. The closing paperwork guy was fast and efficient. More

