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In Upper Marlboro, we are Harris - a mechanical contractor committed to serving homeowners with unparalleled expertise. Our extensive services spa…
The Best Mechanical Contractor Company in Upper Marlboro
Compare top-rated mechanical contractor providers in Upper Marlboro. Profiles include verified reviews, service details, and direct contact options.
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Verified Mechanical Contractor in Upper Marlboro, MD
We show only active businesses that pass moderation. Results are specific to Upper Marlboro and nearby service areas, and inactive profiles are removed to keep the list current.
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Mechanical Contractor near me in Upper Marlboro, MD - August 2026
Looking for mechanical contractor in Upper Marlboro? This page lists verified local providers with ratings, reviews, and contact options. We show active businesses only — profiles are moderated and updated by owners.
Compare pros by experience, price range, and customer feedback. Many providers offer free estimates or same-day service for common requests. Use filters and the map to find someone close to your address.
Before you hire
- Read the most recent reviews for your specific type of job.
- Ask about licensing and insurance when required for this trade.
- Get a written estimate for work over a few hundred dollars.
- Confirm availability and any trip or emergency fees upfront.
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What Upper Marlboro customers say about local pros
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I HAD A PROBLEM WITH MY OILFURNACE THAT WAS IN STALLED BY RM THORNTON IN MARCH OF 2015 WHEN I CALLED IN DECEMBER IWAS TOLD THAT THER WOULD BE A SERVICE CHARGE JUST TO LOOK AT IT AND WAS ALSO TOLD IF THIS WAS A LACK OF MAINTENANCE ISSUE I WOULD BE CHARGED FOR THE COMPLETE REPAIR. REALLY!!!!!!!!!!!!!!!!! YOU MEAN TO TELL ME THAT I SHOULD BE MAINTAINING THIS UNIT WITH LES THEN 20 HRS. OF OPERATION??????? I OWN A SERVICE STATION AND WHEN A CUSTOMER CALLS ME AFTER A REPAIR OF ANY KIND THAT WEVE DONE WITH AN ISSUE I WILL TELL THEM BRING IT IN AND THER WILL BE N/C FOR CHECK OUT OF SAID PROBLEMS THEN WE GO FROM THERE I FIND IT VERY HARD TO BELIEVE THAT THIS IS EVAN CLOSE TO ADDI QUITE CUSTOMER SERVICE..GOOD LUCK. BUT TO BE FAIR THE TECHS INSTALLING THE FURNACE WERE GREAT
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Harris Co has been Rosemont's HVAC and plumbing contractors for ten years and will be until I retire. They've never let me down!
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The driver of this company truck deliberately cut me off without using a turn signal and than drove slower; I figured it was deliberate due to him constantly checking his mirror acting like it was some joke. Driving isn’t a game.
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Driver in Harris Van with MD Plate ending in 9360 was driving on 29N. was so far on my bumper was unable to see. if I would have hit my brakes, he would have been in my back seat. Speeding, Tailing Cars, Swerving in and out of lanes, So unsafe!
