We know that surprises are unwelcome to property managers and building engineers. But with our 7 Step cooling, heating and plumbing services process, you’ll know exactly what to expect from us. Our technicians are outstanding, and our delivery from the office to the field is a cut above other Washington, D.C. mechanical service companies.

Fast service calls and emergency response

Our plumbing and HVAC maintenance agreements guarantee response times that meet or exceed the industry average. That’s because our friendly and professional staff knows that responsiveness matters to you. They work carefully and quickly to provide you with the best available HVAC professional or plumber to solve your problem.

We send out an experienced technician the same day, or the next morning, for late day calls. We then deliver a quick diagnosis and a detailed proposal within 24 hours.

Immediate and thorough communication

Advanced mobile technology gives you status updates, photos and videos from the jobsite, as the work occurs. This way, you have the best information to support your decisions.

Self sufficiency

Your job is hard enough. We empower our full-time, in-house technical staff to meet all your needs. Our HVAC technicians are cross-trained to provide complete support.

And, we fully document and maintain details of your properties and facilities.

Results you can trust

We inform you immediately after the job is done and make sure you’re satisfied. We don’t fail or allow you to fail. The proof is in our results: 100% of participants in our client survey say they would recommend Trimark Mechanical Services to a friend or colleague. Read what our customers say.

Reliable advice

Our expertise extends beyond fixing equipment. We clearly and professionally communicate the most up-to-date, accurate HVAC, plumbing, heating and HVAC details. Our commercial and multi-unit management clients rely on this information to make decisions that keep their tenants happy and comfortable.

Prompt, detailed service orders and invoices

You deserve thorough service from your Heating and Air Conditioning company. That’s why for everything we do, from HVAC repairs to plumbing service and repair, we follow up within 24 hours of job completion with a service order. Within 48 hours, we deliver a clear and comprehensive invoice. And all along the way, our staff is responsive to all of your questions and concerns.

Committed to continuous improvement

We’re the Mechanical Services company that always strives to improve. We conduct ongoing research and solicit feedback from clients like you. It’s how we deliver the best systems for heating, air conditioning, plumbing service, and repair. We keep our client relationships strong by listening to you.