GLM Mechanical Services, Inc.

4.82 |57 Verified Ratings
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GLM Mechanical Services, Inc.

4.82 | 57 Verified Ratings
Write a Review


9905 Lyons Mill Road
Owings Mills, MD 21117
Your use of our services is governed by our Terms & Conditions

GLM Mechanical Services, Inc.

When looking for professional HVAC services, look no further than GLM Mechanical Services, Inc. What we offer is honest, open estimating, with strict attention to detail and on time delivery. We can bring to the table a level of expertise not usually available to residential projects. We have several years experience providing prompt and reliable services building your dreams into reality. We will always meet and exceed all expectations. Proudly handling the Goodman and Airtemp brands of HVAC equipment. Give us a call, you will be glad you did. We now accept Visa, Mastercard, & Discover.


Learn how HomeAdvisor screens and approves their pros.

Service Area

  • Columbia
  • Baltimore
  • Ellicott City
  • Catonsville
  • Westminster
  • Woodstock
  • Owings Mills
  • Sykesville
  • Finksburg
  • Stevenson
  • Reisterstown
  • Windsor Mill
  • Elkridge
  • Randallstown
  • Cooksville
  • Glyndon
  • Marriottsville
  • West Friendship
  • See All >

Services Offered

Air Conditioning
  • Central A/C Install
  • Ductless Mini-split A/C Install
Heating & Furnace Systems
  • Heat Pump Install
  • Electric Furnace - Install

Areas of Expertise

  • Heat pump replacements
  • HVAC Installation. Gas furnaces, heat pumps and air conditioning systems
  • Central air conditioning replacement

Product Brands Used

  • Amana
  • Goodman
  • Airtemp

Quick Facts

Business Hours
9:00 AM to 5:00 PM
9:00 AM to 5:00 PM
9:00 AM to 5:00 PM
9:00 AM to 5:00 PM
9:00 AM to 5:00 PM
(Please call to confirm)
  • Free Estimates
  • Residential
  • Credit Cards Accepted


In Business Since: 1978
Memberships & Affiliations
  • Maryland HVAC-R # 3084
  • We Accept Credit Cards!
State Licensing
Trade: Master HVAC
License #: 3084
Expiration: 06-03-2022
Type: General Liability
Amount: $1,000,000
Expiration: 08-01-2021
HomeAdvisor Screened. View Details

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Ratings & Reviews
GLM Mechanical Services, Inc.

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
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Showing 1-10 of 57
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5.0   |  
Excellent job. Price is affordable and service was great. Very reasonable.
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5.0   |  
They are knowledgeable, prices and service were excellent. I will recommend GLM Mechanical Services, Inc.
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5.0   |  
Wes is a true pro. After 40 yrs in the business it sure shows
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5.0   |  
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5.0   |  
Review by in Columbia, MD
Knowledgeable, honest, prices were excellent, service was quite good. Will recommend to all
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5.0   |  
Review by in Owings Mills, MD
GLM Mechanical Services, Inc. installed a new heat pump and air handler HVAC system at my residence on June 10, 2015. They arrived on time and completed the installation for the price that was initially quoted, without trying to upsell me on any additional services. On July 07, 2019, I needed to locate a part for my HVAC system and contacted GLM Mechanical Services, Inc. for assistance. They promptly contacted me back and located the part that had to be specially ordered from Texas. When the part arrived, the owner of the company picked the part up from the vendor and hand-delivered it to my residence. I highly doubt that I would have received this type of customer service form the other well-known publicly traded HVAC companies.
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5.0   |  
They are professional and practical. Fair pricing and thorough.
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5.0   |  
Review by in Ellicott City, MD
Honest pricing. On time. Professional and experienced. Would definitely recommend Wes and his team.
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4.0   |  
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5.0   |  
Review by in Owings Mills, MD
Project: Install Natural Gas or Propane Furnace / Forced Air Heating System
Mr. Foster and his crew were prompt, meticulous, and very helpfully explained every aspect of the installation. (I'm interested in new things) Glen was clearly a skilled professional well beyond his apparent years. I wouldn't hesitate to call GLM Mechanical again.
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Showing 1-10 of 57
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Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
    HomeAdvisor uses 3rd party data sources to conduct a criminal search for any relevant criminal activity associated with the owner/principal of the business.
  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
    We conduct a reverse business phone lookup to identify records matching the phone number information provided by the business.

NOTE: Member service professional information confirmed as described above may change or expire over time; while HomeAdvisor attempts to maintain accurate and up-to-date information, and confirms changes when notified, we cannot guarantee that profile and screening information is accurate. Therefore, we recommend that before working with a service professional you verify that information presented is still current and/or acceptable to you.
Please see HomeAdvisor's Terms and Conditions for a full description of how we screen Service Professionals

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