
Reliable HVAC Services for Gaithersburg, Montgomery County & Beyond
Delivering Expert Repair, Installation, Maintenance and Replacements Since 1994
Tailored HVAC Services for Residential & Commercial Customers
Driven by Experience, Committed to Excellence
With a legacy of excellence and innovation set by Mallick Plumbing & Heating (MPH) and Mallick Mechanical Contractors (MMC), Mallick Mechanical Services (MMS) was founded in 2024 by industry veterans, drawing on over 80 years of experience to specialize in HVAC service, system replacements, and preventative maintenance for both residential and commercial customers. Today, MMS joins MPH in upholding the trusted Mallick name—delivering exceptional service, advanced solutions, and a commitment to lasting relationships.

Residential Service
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HVAC Service
Heating
Air Conditioning
Indoor Air Quality
HVAC System Installation
HVAC Preventive Maintenance
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Preventive Maintenance
Equipment Installation
Equipment Replacement
System Analysis & Reporting
Mechanical Room Redesigns
Small Projects
Tenant Fit-Outs
They were able to almost immediately diagnose the problem and then walked me through several options for repair and replacement. As a new home owner, it was incredibly helpful and comforting to hear the different options, pros and cons, and costs. We ended up needing a simple, low cost pressure switch replacement. Not only were they able to fix the issue quickly, no one attempted to upsell me on a new unit or upgrades to my system.
Technicians Naun Gomez and Mr. Ian came out to assess the plumbing issues I had. The pipe pressure was way higher than it should have been. I also needed a new hot water heater and other work performed. They were timely, professional and very knowledgeable. My neighbor next door pipes actually burst. I am so grateful for Ian and Naun. Great service! I would recommend them highly!
D.L.
Build Your Future with Integrity & Opportunity
Service: We don’t just meet expectations—we exceed them. Your success is our priority.
Integrity: Honesty and accountability are at the heart of everything we do.
Respect: Treating others the way we’d like to be treated is not just a principle—it’s a practice.
Improvement: We never stop learning, growing, and evolving to better serve our clients.