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TRUSTED BY FREDERICK, MD HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon2.9k+
    Verified plumbing services reviews

Verified Reviews for Plumbing pros in Frederick, MD

*The Angi rating for Plumbing companies in Frederick, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.

*The HomeAdvisor rating for Plumbing companies in Frederick, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.

Last update on October 08, 2025

Find Plumbers in Frederick

ASAP Kitchen & Bath

4710 Arbutus Avenue
5.00(
24
)

ASAP Kitchen & Bath

4710 Arbutus Avenue
5.00(
24
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Licensed home improvement contractor/plumber Assembly and Installation of IKEA Cabinets MHIC#104162 WSSC#991 Free estimates by appointment. Sub-contracting master electricians, HVAC, and stone countertops(granite, Quartz, and marble) Fast, efficient, responsible

"Ray did a good job. He was punctual, communicated well, and took time to explain what the issues were and how he was going to fix them. Ray has great attention to detail and even patched a few places that I didn't even notice."

Ruben L on December 2020

Licensed home improvement contractor/plumber Assembly and Installation of IKEA Cabinets MHIC#104162 WSSC#991 Free estimates by appointment. Sub-contracting master electricians, HVAC, and stone countertops(granite, Quartz, and marble) Fast, efficient, responsible

"Ray did a good job. He was punctual, communicated well, and took time to explain what the issues were and how he was going to fix them. Ray has great attention to detail and even patched a few places that I didn't even notice."

Ruben L on December 2020

Economical Mitigation Service

9316 Saint Andrews Pl
5.00(
1
)

Economical Mitigation Service

9316 Saint Andrews Pl
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Economical Mitigation Service is locally owned and operated by Hashly Lopez. Because your satisfaction is our top priority, we promise to provide you with the best service experience possible. We have a team of caring, industry-trained and certified professionals ready to address your needs. Whether responding to emergency water damage or a hidden mold or moisture intrusion, we ensure that the air you breathe is clean and healthy.

Economical Mitigation Service is locally owned and operated by Hashly Lopez. Because your satisfaction is our top priority, we promise to provide you with the best service experience possible. We have a team of caring, industry-trained and certified professionals ready to address your needs. Whether responding to emergency water damage or a hidden mold or moisture intrusion, we ensure that the air you breathe is clean and healthy.

Custom Flow Plumbers LLC

6415 Landover RD
No reviews yet

Custom Flow Plumbers LLC

6415 Landover RD
No reviews yet
Free onsite estimate

Custom Flow Plumbers LLC, is a family owned and operated business with over 28 years of experience throughout the State of Maryland and Washington area. Founded by Gideon Brown, Custom Flow Plumbers is a Fully Licensed and Insured company. Mr. Brown is the Operations Manager and licensed Master Plumber for the company. He is management for all field operations. Mr. Brown is a believer in Integrity, Customer Service, and Excellence. He has experience working with large organizations and is currently running service contracts for national companies and residential customers throughout the area. Here at Custom Flow Plumbers, we offer Affordable, Up Front Pricing before any work begins. We service all aspects of plumbing for both commercial and residential clients. As a top rated plumbing company, we make every effort to give you complete pricing before any work is started. If there are any options available, you will know them before the work begins. There are no surprises!

Custom Flow Plumbers LLC, is a family owned and operated business with over 28 years of experience throughout the State of Maryland and Washington area. Founded by Gideon Brown, Custom Flow Plumbers is a Fully Licensed and Insured company. Mr. Brown is the Operations Manager and licensed Master Plumber for the company. He is management for all field operations. Mr. Brown is a believer in Integrity, Customer Service, and Excellence. He has experience working with large organizations and is currently running service contracts for national companies and residential customers throughout the area. Here at Custom Flow Plumbers, we offer Affordable, Up Front Pricing before any work begins. We service all aspects of plumbing for both commercial and residential clients. As a top rated plumbing company, we make every effort to give you complete pricing before any work is started. If there are any options available, you will know them before the work begins. There are no surprises!

Michael & Son

5730 Industry Ln
1.67(
3
)

Michael & Son

5730 Industry Ln
1.67(
3
)
"Avoid this company at all costs. You'll save yourself headaches, time, and money. Our heat pump was broken (no a/c) so we called Michael & Sons. The tech they sent out began by trashing his own company. He said that Frederick County where we live was "dead to them." How nice, right? During our get acquainted chat he also said Michael & Sons was expensive. That sure turned out to be true. Right away, he then shoved his tablet in my face where I was asked to sign a multi-page form full of legalese--and this was just for their $89 diagnostic fee. Like a boob I did. This nightmare of a tech then misdiagnosed our issue (as I later found out). When I called Michael & Sons to tell them about this wonderful experience, they said they would send out their "best tech" the next day. This new guy was even worse because he wound up costing us $400, and of course, didn't fix our heat pump. In fact, he apparently burned out our transformer. (It was working fine before he came.) He left by saying "Michael & Sons doesn't service equipment that they didn't install." How crazy is that? Of course, Michael & Sons would accept no responsibility for the burned-out transformer. The next day I called Metro Services HVAC in Silver Spring. As I'll detail in a different review they were as fantastic as Michael & Sons was horrible. I have no connection to either company, so please believe me when I say Michael & Sons is your worst nightmare, whereas Metro provided the service you pray you will get when you call a contractor. addendum: Read their reviews on Yelp. Please note they have offices all over. Make sure you read the reviews for the office that will be servicing your request"

Brad S on June 2022

"Avoid this company at all costs. You'll save yourself headaches, time, and money. Our heat pump was broken (no a/c) so we called Michael & Sons. The tech they sent out began by trashing his own company. He said that Frederick County where we live was "dead to them." How nice, right? During our get acquainted chat he also said Michael & Sons was expensive. That sure turned out to be true. Right away, he then shoved his tablet in my face where I was asked to sign a multi-page form full of legalese--and this was just for their $89 diagnostic fee. Like a boob I did. This nightmare of a tech then misdiagnosed our issue (as I later found out). When I called Michael & Sons to tell them about this wonderful experience, they said they would send out their "best tech" the next day. This new guy was even worse because he wound up costing us $400, and of course, didn't fix our heat pump. In fact, he apparently burned out our transformer. (It was working fine before he came.) He left by saying "Michael & Sons doesn't service equipment that they didn't install." How crazy is that? Of course, Michael & Sons would accept no responsibility for the burned-out transformer. The next day I called Metro Services HVAC in Silver Spring. As I'll detail in a different review they were as fantastic as Michael & Sons was horrible. I have no connection to either company, so please believe me when I say Michael & Sons is your worst nightmare, whereas Metro provided the service you pray you will get when you call a contractor. addendum: Read their reviews on Yelp. Please note they have offices all over. Make sure you read the reviews for the office that will be servicing your request"

Brad S on June 2022

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Plumbing questions, answered by experts

For plumbing work in Frederick, PEX piping is favored for water lines due to its flexibility and resistance to freezing, which suits the local climate. For drain lines, PVC is commonly used and meets local plumbing codes. When selecting fixtures, prioritize WaterSense-labeled products to align with Frederick's water conservation standards. Local plumbing supply stores can offer region-specific materials that comply with Frederick County Division of Permits & Inspections guidelines.

Helpful?

Frederick's cold winters increase the risk of frozen or burst pipes, so insulating exposed plumbing and properly winterizing outdoor spigots is essential. High summer humidity can contribute to condensation on pipes, especially in basements. According to Frederick County Division of Permits & Inspections, scheduling major plumbing installations during milder weather can help avoid weather-related delays and ensure compliance with local plumbing inspection requirements.

Helpful?

In Frederick, homeowners often encounter unexpected costs related to plumbing permit fees and upgrades needed to meet the Maryland State Plumbing Code, especially in older properties. Accessing pipes behind finished walls or in crawl spaces can increase labor time. Additionally, plumbing inspections by Frederick County Division of Permits & Inspections may reveal code violations that require correction. Always set aside a contingency fund for unforeseen issues discovered during plumbing work.

Helpful?

In Frederick, a frequent mistake is starting plumbing projects without obtaining the required permits from Frederick County Division of Permits & Inspections. Using materials not approved by local plumbing codes or neglecting to insulate pipes against winter freezes are also common errors. Homeowners sometimes overlook the need for plumbing inspections or fail to consider well water systems prevalent in rural areas. Consulting local professionals and verifying requirements with the Maryland Board of Plumbing helps prevent costly setbacks.

Helpful?

In Frederick, most plumbing work—including water heater replacement, new fixture installation, or major repairs—requires a plumbing permit from the Frederick County Division of Permits & Inspections. Additionally, compliance with the Maryland State Plumbing Code is mandatory. Inspections are typically required at both rough-in and final stages. Always confirm current requirements with both Frederick County and the Maryland Board of Plumbing before starting any project to ensure full compliance.

Helpful?
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