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Location and Projects

Address
9905 Lyons Mill Rd, Owings Mills, MD, 21117
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Glm Mechanical Services Inc

Their BuildZoom score of 104 ranks in the top 9% of 58,058 Maryland licensed contractors.

If you are thinking of hiring Glm Mechanical Services Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.

Glm Mechanical Services Inc Services

Start a project today:
HVAC

Glm Mechanical Services Inc Contact Information

Phone: (410) 979-4106
Address: 9905 Lyons Mill Rd, Owings Mills, MD 21117

Glm Mechanical Services Inc Owings Mills

Quality

104
91st percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Glm Mechanical Services Inc has a BuildZoom score of 104, which places them above 91% of 58,058 contractors in Maryland.

Activity

6 projects
 2025
4 projects
 2024
9 projects
 2023
Our building permit records indicate that Glm Mechanical Services Inc has worked on at least 19.0 projects over the past 3 years.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Experience

19 projects
 HVAC projects
Analyzing permits over the last 4 years shows that Glm Mechanical Services Inc mostly works on hvac project projects.

Pricing

2 projects
 < $5k
1 project
 $20k-$50k
Value Not Public: 17.0 projects
Pro tip: For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.

Building Permits by Glm Mechanical Services Inc

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Residential hvac addition alteration permit
15320 Doe Hill Ct, Woodbine, MD, 21797
2025-10-09
Single family dwelling duct work only. finishing basement project. running 6 supply lines and one return line from existing hvac system. run 4 exhaust vent pipe for bathroom fan
Valuation:
N/A
Permit #:
M25001492
Status:
issued
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
9505 Red Apple Ln, Columbia, MD, 21046
2025-02-25
Single family dwelling finishing basement project. duct work only. 3 new supply lines and one return line. exhaust vent pipe
Valuation:
N/A
Permit #:
M25000230
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
6417 Erin Dr, Clarksville, MD, 21029
2025-10-09
Single family dwelling duct work only. finishing basement project. adding 4 supply lines and one return to existing hvac system. running 4 pipe for bathroom exhaust fan
Valuation:
N/A
Permit #:
M25001494
Status:
issued
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
2708 Thornbrook Rd, Ellicott City, MD, 21042
2024-09-04
Single family dwelling. #b24003167. master hvac weslay foster #3084. duct work only for finishing basement. 4 supply lines and one return. 4 exhaust pipe for bathroom fan
Valuation:
N/A
Permit #:
M24001007
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
9110 Northfield Rd, Ellicott City, MD, 21042
2023-06-03
Single family dwelling duct work only. extend 2 supply lines to finish bedroom and bathroom in the basement. run exhaust vent pipe outside **amend permit per inspector for final to addition return air ducts**
Valuation:
N/A
Permit #:
M23000580
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
3687 Folly Quarter Rd, Ellicott City, MD, 21042
2023-02-09
Single family dwelling duct work only. extend existing ductwork only to finish the basement. 5 supply lines one return and one bathroom vent
Valuation:
N/A
Permit #:
M23000118
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
8709 Wellford Dr, Ellicott City, MD, 21042
2025-10-24
Single family dwelling duct work only. run 5 supply lines and exhaust vent pipe for finishing basement project
Valuation:
N/A
Permit #:
M25001579
Status:
issued
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
5285 Talbots Lndg, Ellicott City, MD, 21043
2024-06-26
Single family dwelling duct work only. run 4 supply lines and 1 return to existing hvac system to finish basement. run 4 pipe for exhaust fan
Valuation:
N/A
Permit #:
M24000676
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
2220 Waverly Overlook Ct, Marriottsville, MD, 21104
2023-01-19
Duct work only. extend existing ductwork only to finish the basement. 4 supply lines one return. one bathroom vent
Valuation:
N/A
Permit #:
M23000057
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
4945 Windpower Way, Ellicott City, MD, 21043
2024-03-11
Single family dwelling duct work only. run 5 supply lines and 1 return to existing hvac system to finish basement
Valuation:
N/A
Permit #:
M24000289
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Mechanical permit
2329 Terrapin Xing, Jessup, MD, 20794
2023-06-26
Duct work only for finishing basement. 3 new supply lines and exhaust pipe for the bathroom fan
Valuation:
$600
Permit #:
M02214890
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Mechanical permit
7920 Severn Hills Way, Severn, MD, 21144
2023-04-10
Duct work only. extend existing ductwork only to finish basement. 4 supply lines one return
Valuation:
$900
Permit #:
M02213555
Status:
complete
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Mechanical permit
1211 Sappling Dr, Severn, MD, 21144
2022-07-14
Duct work only. extend existing ductwork only to finish the basement. 5 supply lines one return. dryer vent and bathroom vent
Valuation:
N/A
Permit #:
M02208517
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Mechanical permit
3640 Seaford Ct, Pasadena, MD, 21122
2022-05-16
Duct work only. extend existing ductwork only to finish the basement. 2 supply lines one return. dryer vent and bathroom vent
Valuation:
N/A
Permit #:
M02208516
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
5603 April Journey, Columbia, MD, 21044
2023-05-11
Duct work only. extend 3 supply lines and one bathroom exhaust vent to finish basement
Valuation:
N/A
Permit #:
M23000496
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
9157 River Hill Rd, Laurel, MD, 20723
2022-12-28
Duct work only. extend existing ductwork only to finish the basement. 4 supply lines one return. and one bathroom vent
Valuation:
N/A
Permit #:
M22001292
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
6708 Walter Scott Way, Columbia, MD, 21044
2023-03-09
Single family dwelling duct work only. extend existing ductwork only to finish basement. 7 supply lines one return one bathroom vent
Valuation:
N/A
Permit #:
M23000243
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
6208 Discover Ct, Columbia, MD, 21044
2022-09-21
Duct work only. extend existing ductwork only to finish the unfinished part of the basement 3 supply lines only
Valuation:
N/A
Permit #:
M22000986
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Residential hvac addition alteration permit
8026 High Castle Rd, Ellicott City, MD, 21043
2024-08-05
Single family dwelling duct work for finishing basement. 5 supplies 1 return bathroom exhaust
Valuation:
N/A
Permit #:
M24000849
Status:
complete
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Mechanical permit
2872 Broad Wing Dr, Odenton, MD, 21113
2022-08-12
Duct work only. extend existing duct work for new rooms and closet in the basement. 3 supply lines only
Valuation:
$400
Permit #:
M02210436
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A

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