3MMECHANICAL logo
Approved
This pro has maintained an average of 4.5+ star throughout their time with Angi.
Approved

3MMECHANICAL

Central A/C Service or Repair, Heat Pump Repair or Service, Geothermal Heating or Cooling System Service,
This pro has maintained an average of 4.5+ star throughout their time with Angi.

About us

Our mission at 3MMechanical is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! 3MMechanical stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

Business highlights

6 years of experience

Memberships & Affiliations

STEAMFITTERS UNION LOCAL 602

Amenities

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.924 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
96%
4
0%
3
4%
2
0%
1
0%

Filter reviews by service

Showing 1-24 of 24 reviews
Olu D.
Feb 2026
3.0
Gas Furnace / Forced Air Heating System Repair Service
I was contact on the Angie and i respond to him and he came doown to the house and he went to buy the item that he said is not working later he went to buy the item

David C.
Feb 2026
5.0
Gas Furnace / Forced Air Heating System Repair Service
$150
Mike was professional and helped me fix my problem. He was also prompt and didn’t waste any time. I would hire him again for any heating or cooling system issues.

Aaron L.
Dec 2025
5.0
Central A/C Service or Repair
3MMechanical provides excellent customer service. He's reliable, efficient, knowledgeable, and goes out of his way to ensure there job is done professionally and cost effectively.

Robert C.
Dec 2025
5.0
Oil Furnace or Forced Air Heating System Repair Service
$1,500
I hired 3M after considering several other sources for furnace repair. In reviewing other proposals I found excessive charges. 3M called me and when I told him about my problem he asked if he could come and look at it. He arrived as scheduled, was professional, courteous, and thorough. After checking out the furnace he gave me an estimate that was half of my other bids. He obtained the parts, and in working on rhe system found another problem with a transformer. He obtained the part and after completing the repair said that the new parts had cost more than his estimate, but since he had missed the problem initially, he would not charge me for the extra labor. I immediately realized I was dealing with an honest person ... a rarity these days. 3M is now my permanent source for all my HVAC needs. There is no better source available than 3M.

Natasha D.
Dec 2025
5.0
Central A/C Service or Repair
$100
My pro is efficient and knowledgeable. Goes beyond the service with reminders and quick turnaround. Wonderful service great customer service.

Evelyn _.
Dec 2025
5.0
Geothermal Heating or Cooling System Service
Yes, very professional. I will hire him again

Kris J.
Dec 2025
5.0
Gas Furnace / Forced Air Heating System Repair Service
Mike is a Pro’s Pro. On time, great communication, he even taught me a few things concerning my system. Will definitely call him back and refer to family and friends.

Carla T.
Dec 2025
5.0
Electric Furnace or Forced Air Heating System Repair Service
I contacted 3MMECHANICAL to replace my hot water heater and repair my thermostat. Each visit was very professional and pleasant. He took his time to ensure he understood the issue, and the work was completed in a timely fashion. Not to add, he came outside of his work zone to service me! I would always recommend 3MMECHANICAL.

Phyllis W.
Dec 2025
5.0
Electric Furnace or Forced Air Heating System Repair Service
Excellent and efficient job

Clyde F.
Dec 2025
5.0
Electric Furnace or Forced Air Heating System Repair Service
$270
I have two mini split systems in my house and one is completely nonfunctional the other was partially functional. Michael was prompt and had both problems diagnosed in minutes. The main system he fixed in a matter of minutes the second smaller system was actually a manufacturer defect that he found thank goodness. We are just waiting for a new part order to complete the job I am 100% satisfied with his work so far. Will update on completion but the interaction was professional and I already plan to use him on my next project.

Michael B.
Dec 2025
5.0
Central A/C Service or Repair
$175
Michael showed up to the job on time. He was extremely professional, and thorough. He quickly found the issue, repaired it and gave recommendations for regular maintenance. I highly recommend 3M Mechanical.

M H.
Dec 2025
5.0
Electric Furnace or Forced Air Heating System Repair Service
$325
The technician was very professional and efficient with repairing our system. He explained to us what impacted our system from working properly and conducted repairs within a couple of hours. I would highly recommend using 3MMMechanical.

DAVID T.
Dec 2025
5.0
Electric Furnace or Forced Air Heating System Repair Service
They did a great job. I highly recommend their services

Aaron L.
Jul 2025
5.0
Central A/C Service or Repair
The service exceeded my expectations in terms of cost, professionalism, and ease of service. Would definitely recommend.

Alfonso P.
Jul 2025
5.0
Central A/C Service or Repair
Extremely satisfied. Mike was quick in fixing the A/C issue.

Jenny T.
May 2025
5.0
Central A/C Service or Repair
Yes, I recommend this pro
Great guy and not too chatty.

Chris J.
Mar 2025
5.0
Gas Furnace / Forced Air Heating System Repair Service
$310
He delivered excellent service by promptly identifying the issue, sourcing the required part, and fully repairing the heating unit in a remarkably short time.

Angela G.
Mar 2025
5.0
Geothermal Heating or Cooling System Service
Got the job done very efficiently, very professional.

Keith C.
Mar 2025
5.0
Gas Furnace / Forced Air Heating System Repair Service
$350
Job was done correctly. He came quickly and we were happy because it was freezing cold in the house and he got it working same day and explained everything he did clearly to me so I could understand.

Greg J.
Mar 2025
5.0
Central A/C Service or Repair
$175
Mr. Bonhom (Mike) showed up on time and jumped right on the job. He explained that I didn’t have the issue I thought I had and did a thorough check on both my heating and A/C systems and told me when I should change my filters. His service call fee was great! I highly recommend 3M Mechanical!!

Marylin G.
Mar 2025
5.0
Gas Furnace / Forced Air Heating System Repair Service
The work performed was done quickly and professionally. I definitely would refer him to other clients.

Jimmy H.
Mar 2025
5.0
Central A/C Service or Repair
$250
Did a great job, highly recommended.

Antoinette K.
Mar 2025
5.0
Gas Furnace / Forced Air Heating System Repair Service
This technician was amazing he made sure all repairs were completed from start to finish. A1 service with A1 customer service. I would recommend him and anyone working for him anytime.

Etta C.
Mar 2025
5.0
Central A/C Service or Repair
The best to ever do it! The professionalism, price transparency and post customer service is second to none!

Licensing

Licensed*

Trade License Number

2710084605

Trade License Locale

MD

Trade License Expiration

05/31/2029

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

3MMECHANICAL is currently rated 4.9 overall out of 5.

Monday: 9:00 AM - 6:00 PM Tuesday: 9:00 AM - 6:00 PM Wednesday: 9:00 AM - 6:00 PM Thursday: 9:00 AM - 6:00 PM Friday: 9:00 AM - 6:00 PM Saturday: 10:00 AM - 4:00 PM Sunday: Closed

3MMECHANICAL accepts the following forms of payment: CreditCard

No, 3MMECHANICAL does not offer free project estimates.

No, 3MMECHANICAL does not offer eco-friendly accreditations.

No, 3MMECHANICAL does not offer emergency services.

Yes, 3MMECHANICAL offers warranties.