"Cold Steel" by Terry Johnston // CC BY 2.0

M

BZ SCORE: 91

Verified License

Matthew Leon Colella

this is my business

BZ SCORE: 91

Home

/

Search

/

Frederick

/

Best Plumbers in Frederick

Updated: Jan 31, 2026

Building Permits by Matthew Leon Colella

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.

Commercial plumbing addition alteration permit

10400 Little Patuxent Pkwy, Columbia, MD, 21044

2009-12-16

Suite 1g/union jacks restaurant install plumbing fixtures 2-urinals/7-lavs/5-water closets/2-kitchen sinks/3-floor drains/3-trap primer/4-open site drains

Valuation:

N/A

Permit #:

P09003813

Status:

complete

Fee:

$243

Permit Type:

N/A

Building Type:

N/A

Building

10097 Dudley Dr, Ijamsville, MD, 21754

2003-03-12

Master bedroom w/bath & walk-in closet & study

Valuation:

N/A

Permit #:

B0300575

Status:

APPR

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Plumbing

10097 Dudley Dr, Ijamsville, MD, 21754

2004-04-16

No Description Available

Valuation:

N/A

Permit #:

P0300532

Status:

NewApproval

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Recent Buildzoom Projects

Verified License

License #	69344
Status	Active
State	Maryland
Type	Plumbers

BuildZoom verified this license was active as of January 2026.

Verify this license's status for Matthew Leon Colella at the Maryland Department of Labor, Licensing & Regulation.

This is a sample of licensing data; click here to access a complete history.

91

BuildZoom Score

How the BuildZoom Score works

Follow this contractor

Before you Hire

Here are some rules, regulations, and laws governing general contractors in Maryland:

Does Matthew Leon Colella carry a valid contracting license?

Maryland laws protect consumers by requiring home improvement contractors to hold a current license issued by the Maryland Home Improvement Commission.

Matthew Leon Colella currently holds license 69344 (Plumbers), which was Active when we last checked.

How important is contractor licensing in Maryland?

The Maryland Home Improvement Commission maintains high standards for home improvement contractor licensing. Applicants must provide proof of at least two years of experience or education in their given field and pass a board exam prior to receiving their license.

Your liability risk when hiring Matthew Leon Colella

Licensed contractors in Maryland are required to show proof of $50,000 liability insurance in order to obtain their license.

Financial recourse when hiring Matthew Leon Colella

If you hire a licensed contractor in Maryland, you are protected by the State's Home Improvement Guaranty Fund. This fund is administered by the Home Improvement Commission to compensate homeowners who suffer economic damages at the hands of a licensed home improvement contractor. No coverage is provided to the homeowner if the contractor is not properly licensed.

What else should I know before hiring Matthew Leon Colella

Licensed contractors in Maryland must provide proof of financial solvency based on the scope and size of their business in relation to total assets, liabilities, credit rating, and net worth.

How is the BuildZoom score calculated?

The BuildZoom score is based on a number of factors including the contractor's license status, insurance status, verified work history, standing with local consumer interest groups, verified reviews from other BuildZoom users and self-reported feedback from the contractor.

Why you should hire through BuildZoom

When it comes to major construction work or even minor alterations to your home, hiring the wrong contractor could result in incomplete or defective work. You may even find yourself dealing with huge liability claims. BuildZoom does the homework for you and helps you hire the right contractor.

You should get several bids before hiring a contractor

The Maryland Home Improvement Commission recommends getting at least three written bids before hiring a contractor. Do not automatically accept the lowest bid - an abnormally low bid may indicate the contractor made a mistake and is not including the same work quoted by their competitors. We've made the bid collection process extremely simple (and free). Just click here to get started.

The best way to use BuildZoom is to let us recommend contractors for your remodeling projects.

Homeowners who hire through BuildZoom's free bidding system report high rates of satisfaction, and homeowners who research contractors online are twice as likely to be happy at the end of their project.

If you hire a contractor through BuildZoom, that contractor is accountable to us. We can enforce standards of behavior, mediate disputes, and guarantee satisfaction.

Read more about why hiring through BuildZoom is so effective.

BuildZoom’s database now contains every licensed contractor across the U.S. - over 2.5 million of them... Categorized contractor profiles are enriched using government data from state licensing boards, Better Business Bureau ratings, and more… BuildZoom jumped into the fray by announcing that it raised $10.6 million in a round led by Formation 8. ...the Y combinator-backed startup said it will be focused on remodeling projects, where the median budget is around $19,000… A new index compiled by BuildZoom — which identifies contractors for projects — found that renovations are running 2.8 percent above their 2005 level…

Browse remodeling photos

If you are looking for remodeling ideas, you can browse hundreds of beautiful photos of work performed by our general contractors.

Browse building permits

You can use our building permit search to see the contractors who are active in your neighborhood and the projects currently taking place.

Get a cost estimate

Use our remodeling calculator to get a ballpark estimate for your project. If you're ready to hire, use our bidding system to get actual quotes from local contractors.