WIth over 30 years of experience, you can count on Coldmaster to be able to handle any type of residential and commercial HVAC system or commercial refrigeration system. Started in 1995 as a service business, our goal has always been to provide the most accurate, prompt and professional service possible. Business has evolved to include installation of all types of HVAC/R, sheet metal duct fabrication, and automatic temperature control systems. Our goal is to always provide what the customer needs at a reasonable price. Call us today to give us a try - we guarantee you will like us.

Served areas

Delmarva Peninsula, Annapolis and surrounding area

Associations and certifications

MD Master HVAC Lic#01-10220, DE Master Lic#0000396

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Installation

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We provide full and partial HVAC system replacement and use Carrier products, as well as brand new ground-up installations. You'll find us knowledgeable about split systems, reciprocating chillers of any size, screw chillers up to 200 tons and oil- and gas-fired boilers.

Operations and Maintenance

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From an under counter fridge to a refrigerated warehouse to a 30-ton-per-day ice machine, we provide full-service maintenance on walk-in coolers. Our staff is equally knowledgeable in such areas as cooling scientific test chambers and in medical refrigeration.
HVAC roof tops, split systems, chillers, cooling towers, and more.

Systems Design and Project Management

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We specialize in retrofitting older buildings with new heating and cooling systems. We'll also take on the installation of systems in new buildings from the ground up. We're certified as a Bryant service provider.

Rake Vanderzen

Dec 22, 2020

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The CLOWNS are ABOUND in the HVAC arena! Having been through the J O K E that is True Comfort Mechanical. The one man show who shows up in an unmarked van, and no uniform but CHARGES you like he is. Amazing what passes for "professionalism" who is adamant your new systems out of warranty and charges you outrageously! THAT is True comfort, who by the way ruined my system that COLDMASTER replace UNDER WARRANTY, and with marked fleet of vehicles, professionals in uniforms. PAUL is the MAN!

Kathleen Barry

Sep 21, 2020

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Excellent service and response time--same day
Reasonably priced service maintenance contract
Helpful, respectful, pleasant staff

Josephine B.

May 11, 2020

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Excellent service. On time, friendly, excellent quality. Highly recommend them for home and business.

Red Mcgirl

Dec 02, 2019

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These gentlemen are a pleasure to work with. All the techs are knowledgeable, polite, and very professional. The office staff is also polite and responsive. True "customer service", a rarity today. I stumbled upon this company, after dealing with others, and I'm so glad i did.

Mary Lent

Oct 23, 2019

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I thoroughly enjoy working with ColdMaster. I find the staff to be very intelligent with a positive proactive attitude. Keep up the great work!

Brandy Warnick

Nov 10, 2018

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Amazing tech and even more amazing office staff. Paula and Joe are the best around!

Merv Disharoon

Oct 30, 2018

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0 stars charge $1,690.00 bleed pipes and replace a valve on furnace. No drive time needed as they are right behind the house. Charged more than 9 hours @ $150.00 per hour.

Riven Witch

Nov 15, 2017

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He was the third tech I called and he was the only one who knew what was wrong with my AC. He was able to come out the same day, explain to me what was wrong and while the part was being shipped he kept me updated. AC works great now.

Rita Trice

Dec 28, 2015

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Great service, excellent work. My Carrier AC is amazing. I use them for my rental, too. Always quick service at a reasonable price.

Riven Witch

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He was the third tech I called and he was the only one who knew what was wrong with my AC. He was able to come out the same day, explain to me what was wrong and while the part was being shipped he kept me updated. AC works great now.

Coldmaster Refrigeration Service, Inc.