HVAC in Connecticut

Loved 3D Mechanical! They replaced our entire central air system- condensers and air handlers. Our experience was excellent from start to finish. They were professional, responsive, easy to work with and amazingly clean throughout the installation. We got three quotes, and they offered the best pricing. They were also fast. Highly recommend!

They came to replace out HVAC units hired through Mitchell. If I could give more stars I would! They were incredibly nice and went above and beyond. Very informative and kept us updated with what was going on. They also did a great job at protecting our carpets and cleaning up afterwards. I would HIGHLY recommend them to anyone. THANK YOU!!

My neighbor recommended the three brothers after ridiculous expensive quotes for new central AC. They came up, knocked it out in one day at an amazing affordable price. they did a great job and cleaned up everything. I love these guys and I tell everybody about them.

Darren and his brothers have installed a split a/c system for us and various other smaller jobs. Personable, honest, knowledgeable and hard working. And very reasonably priced. A rare combination nowadays. I highly recommend them. Frank R

This is the first time writing a review about anything,I had to talk about 3D mechanical as these 3 brothers Darren,Dillion,Derek are impeccable workers. I had an oil furnace that was 32 years old and time to be replaced. So I started to make phone calls,and getting quotes to replace it.I came across 3D mechanical and talked with Darren,he came out and gave me some options.He noticed that I had propane tanks for something else so he mentioned a propane fired furnace that would hang on the wall. He told me it’s more efficient cleaner and quieter and cheaper then oil.So he sold me on the gas furnace called Navien Combi.He put me on their schedule to do the switch over.The team showed up and did an incredible job!They installed all new copper pipes and the unit so neat,it looks like a jewelry box in the furnace room. The town inspector said wow! “ who did this?” I said 3D mechanical and he couldn’t believe the work they did and how neat and perfect everything looked. Everyone I show can’t believe the work they did all in one day. I would highly recommend 3D mechanical for any mechanical needs. These brother are professional,smart,honest and neat. 5 stars for sure. Pictures show before and after

These guys are top notch. They just installed my new AC and did some plumbing for me. All was completed on time. They do incredible work and are meticulous about keeping things neat and clean during and after the job. Highly recommend giving them a call.

Excellent company to work with. They were responsive and extremely fair.

I can’t say enough good things about 3D Mechanical Plumbing, Heating & Cooling. It’s refreshing to work with a local, family-owned company that truly cares about its customers. From the first phone call to the completion of the job, they were responsive, professional, and incredibly easy to work with. What impressed me most was how consultative they were. Instead of trying to sell me something I didn’t need, they took the time to explain my options, answer every question, and recommend the solution that made the most sense for my home and budget. Their honesty and integrity really stood out. The quality of their workmanship was outstanding. Every detail was handled meticulously, the work area was kept clean, and you could tell they take real pride in doing things the right way. They arrived when they said they would, communicated throughout the process, and finished the job exactly as promised. Their pricing was fair, transparent, and competitive, with no surprises. It’s rare to find a contractor who combines expert craftsmanship, excellent communication, reliability, and genuine customer service the way 3D Mechanical does. If you’re looking for a trustworthy local company for plumbing, heating, or air conditioning work, I highly recommend 3D Mechanical. They earned my confidence, and they’ll be the first company I call for any future HVAC or plumbing needs.

If there was 10 stars option it would be 10 stars. My central AC kicked the bucket after 29 years on the hottest day so far. A few friends recommended 3D so I gave them a call after calling a few others. Darrin and his brothers were out to the house the next morning and advised me of our situation. With the hot months right around the corner and my elderly in laws coming up for their annual stay, there was no other option but to put in a new air handler. Derrick showed me exactly what broke and the condition the unit was in. He found a new unit for us in less than a week and slotted us into their busy schedule. They got the work done in just a few hours and we are back to having nice cold AC in the house. They were respectful of our residence, worked hard and clean. They gave me a great price and beat out all the other contractors by hundreds of dollars. They will now be maintaining my boiler as well. Thank you to the 3 brothers (Darrin, Derrick, and Dillon) for the fast response and great A+ service. It’s refreshing as a homeowner to see there are still honest contractors out there!!

I was referred to them and let me tell you, very honest and straight forward ppl. Great quality work, yet affordable! I needed a whole new dual tankless hot water heater. They came right out, got us the best deal and took care of everything in a day, NO hassle . I won’t call anyone else!

After going through two incompetent plumbers, I found 3-D they are the most professional competent honest and fair priced plumbers. I cannot tell you how they went out of their way fix the job that entailed a solution that needed superior brain work !!!! Not only that they are polite and respectful. Do not look any further I wish I had met them first . Outstanding brothers with integrity!!!!

After going through two incompetent plumbers, I found 3-D they are the most professional competent honest and fair priced plumbers. I cannot tell you how they went out of their way fix the job that entailed a solution that needed superior brain work !!!! Not only that they are polite and respectful. Do not look any further I wish I had met them first . Outstanding brothers with integrity!!!!

Stepped out of my comfort zone and tried to install an indirect fired water tank on a boiler which I’ve piped in many times just the plumbing aspect…but the electrical aspect of the install was not what I expected it to be. I accidentally “fried” the old zone panel and the aquastat controller on the water tank. After a new 4 zone panel, a new controller, several trips to Home Depot for fuses and BX cable, and good amount of money out of my own pocket…I called up Darin and he helped me to restore this customers heat and hot water successfully. I wanna thank Darin for their expertise in the HVAC field helping me to complete this job, they are truly great at what they do. I wouldn’t call anyone else ever. They truly know their stuff.

3D Mechanical was unbelievable. I called for myself and set up an appointment and then my mom told me she had no hot water. I called 3D Mechanical Darin Cetrone late in the evening the night before my appointment to ask him to go to my mom's instead. Well he made it work and his brother actually went to my mom's earlier in the day and still made it to my house. They fixed the issue at my mom's in no time and she had hot water. They are due back at my house on Monday for a Lil bit bigger job. They have definitely earned my business for the future. IM DROPPING MY CURRENT OIL COMPANY WHO WONT SERVICE THE HOT WATER SIDE OF MY BOILER THAT THEY SOLD ME.

3D Mechanical perform all the installation work for our new boiler and water heater. They were on time, friendly, and did a fantastic job on all piping, wiring, and startup work.

We would like to express our most sincere gratitude to 3D Mechanical Plumbing/HVAC LLC for the impeccable work they have performed at our home. From the install of dual oil tanks, new furnace, electric water heater to new bathroom/kitchen piping and fixtures. These guys are extremely proficient, meticulous, and personable. Darin was particularly helpful in keeping us informed about our options as well as costs. We honestly could not be more satisfied! Their high quality service keeps our mind at ease. Would highly recommend! Thank you 3D!

Called them and they came out same day. Made sure my problems were solved and we were satisfied. Fair price and very friendly. Highly recommend them.