Location and Projects
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DD Plumbing LLC
DD Plumbing LLC is a small family owned plumbing company. Colorado natives Dave and David are Gaithersburg and son. They opened DD Maintenance LLC in 2020 they started out by doing concrete work, fences, drywall, finish texture/paint, landscaping, small plumbing, hvac, and electrical issues and much more. Because of all this it has made DD Plumbing LLC the one stop plumber. While we can’t do major electrical without a license there are small things we can do without it but it makes it so we can do a full bath/kitchen remodel, we can fix a water leak and any damage, we can repipe your house and patch all the holes, we can replace your sewer main and we can repair any landscaping or concrete that gets removed or damaged. With DD Plumbing there’s no Job to big or to small and regardless of the size of the job I treat all my clients with the same respect. My father and myself opened this company in 2020 because we saw how some of these other plumbing company’s we taking advantage of people and charging crazy prices, so we started DD Plumbing so we could try and help the community and business with an affordable plumber who’s going to use the highest quality material and has a keen eye for detail. At times our prices may come in around the same or a little higher but that’s beautiful we is the best of the best and while you might pay a little now you won’t be paying later with property damage, constant issues and most important when you do need help you won’t get blown off or ignored. We’ll be right by your side to get to the bottom of the issue and get it fixed.
From BuildZoom: DD Plumbing LLC, 10742 Larson Dr, Northglenn, CO (Employees: David J Mailander and David M Mailander) holds a Plumbing Contractor license and 4 other licenses according to the Colorado license board.
Their BuildZoom score of 112 ranks in the top 3% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring DD Plumbing LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
DD Plumbing LLC Services
DD Plumbing LLC Contact Information
DD Plumbing LLC Northglenn
Quality
Activity
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2 projects
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2025 |
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34 projects
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2024 |
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19 projects
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2023 |
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
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55 projects
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Plumbing projects |
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27 projects
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Sewer laterals |
Pricing
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54 projects
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< $5k |
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2 projects
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$5k-$20k |
This is a sample of this contractor's permits. Click here to access their complete permit history.
DD Plumbing LLC Reviews
DD Plumbing LLC License info
Verified License
| License # | 4689 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for DD Plumbing LLC at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | Plbg A |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 4689 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2025. Check the current license status of DD Plumbing LLC with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2302660 |
| Status | Inactive |
| City | Westminster |
| Type | Plumbing Contractor |
- According to the City of Westminster, Colorado, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for DD Plumbing LLC at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LCC202300064 |
| Status | Inactive |
| City | Thornton |
| Type | Class D Plumbing |
- According to the Thornton City Development Contractor License, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for DD Plumbing LLC at the Thornton City Development Contractor License.
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
55
Permits
- Building permit records show that DD Plumbing LLC has worked on 55 permitted projects.
DD Plumbing LLC Employees
