Carroll Mechanical

Top Pro

Licensed

$95/service call

Estimated price

Select a service

Zip code

Type of heating system

Building height

Heating system problems

Responds in about 2 hours

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About

Carroll Mechanical provides residential and light commercial HVAC solutions for homeowners, apartment property managers, and business owners. We are proudly a locally-operated business that you can trust to keep your systems running smoothly year-round. Whether you're facing an HVAC emergency, upgrading your system, or simply looking for ongoing maintenance to keep everything tuned up, you can trust Carroll Mechanical to support your needs.

Overview

Current Top Pro

Hired 67 times

Serves Rockville, MD

Background checked

License verified

15 employees

11 years in business

Business hours

Sun9:00 am - 5:00 pmMon8:00 am - 8:00 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, and PayPal.

Social media

Facebook

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

2025

Credentials

License verified

HVAC – Master

License state: MD

Background checked

Passed by Roy Walker Iii on Aug 21, 2024.

Services offered

Type of heating system

Heating system problems

No problem, just need maintenance

No heat

Not enough heat

Unusual noises from inside

Building height

Single-level

Two-story

Three-story

High-rise

Projects and media

Reviews

Customers rated this pro highly for work quality, responsiveness, and professionalism.

Excellent 4.9

78 reviews

5

96%

4

3%

3

1%

2

0%

1

0%

Read reviews that mention:

Akuoma N.

3 weeks ago

•

Hired on Thumbtack

I needed a new HVAC system after my old one broke down during the coldest point of the year before a snowstorm. They gave me the best price for the best equipment, were very informative, and had the whole system set up the next day. SO grateful.

Details: Replace an existing A/C unit • As recommended by the professional • I need the professional to purchase the unit • Basement • Location recommended by the professional • 2,000 - 3,000 sq ft • Two stories • House

Central Air Conditioning Installation or Replacement

John B.

2 weeks ago

•

Hired on Thumbtack

We received outstanding service for our natural gas boiler. It’s an older system that just needed some maintenance and TLC, but two other firms didn’t want to deal with it. Carroll came out quickly, easily did the maintenance, explained everything in great detail, and clearly know their stuff. I will be switching all our annual maintenance to them for both the boiler and our central HVAC system.

Details: Boiler • Leaking • Basement • Three-story building • House

Heating System Repair or Maintenance

Cara P.

Jan 9, 2026

•

Hired on Thumbtack

Details: Furnace • Basement • Two-story building • House

Heating System Repair or Maintenance

Amond U.

Nov 21, 2025

•

Hired on Thumbtack

I had an excellent experience with Carroll Mechanical today. Our technician, Josh Glatz, was outstanding from start to finish. He showed up on time, quickly diagnosed why the heat was not working, and explained the issue clearly. Josh discovered that the return and supply valves were shut off and immediately restored heat once he opened them. He also performed a thorough inspection of the system, checked temperatures, reviewed the hydronic heating setup, and identified a failing blower capacitor before it caused a bigger problem. His attention to detail and professionalism were impressive. Josh took the time to walk me through everything he found, what needed attention, and what could wait. He did not try to upsell anything unnecessary, just honest and high quality work. Based on today’s visit, I am very confident in Carroll Mechanical and will continue using them for maintenance going forward. If you get Josh as your technician, you are in great hands.

Details: Not enough heat • Single-level building • Condo or apartment

Heating System Repair or Maintenance

Sameh L.

Nov 13, 2025

•

Hired on Thumbtack

CM installed a Goodman system which was economical and they handled the rebates. CM is like mom and pop business that does excellent work and cares about their customer.

Details: Unit won't turn on or off • Basement • Ground floor • House

Central Air Conditioning Repair or Maintenance