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Find Percolation testing pros in Colmar Manor

Avatar for Len The Plumber, LLC.

Len The Plumber, LLC.

550 Forest Glen Rd
3.90(
645
)
Approved Pro

Len The Plumber, LLC.

550 Forest Glen Rd
3.90(
645
)
Approved Pro
Customers say: Super punctual
580 local quotes requested
29 years of experience

Len The Plumber, LLC. is a leading plumbing and drain company serving Maryland and Washington D.C. Our certified professional plumbers are available same day to assist residential customers in Charles County, Montgomery County, Prince George’s County, and Washington D.C. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"Tried to schedule a routine maintenance appointment available to customers who signed up for service plans, but Len could not follow through with their commitment three failed/rescheduled appointments in a row!! Each required four hour commitments from the customer. I tried to communicate with dispatch and customer service but unfortunately I don’t think these two departments have an open line of communication between them. I would not recommend for anyone to work with or engage with this company. Len did not follow through on their half of the commitment and disrespected my time as an in office working professional."

Kayla B on July 2025

Len The Plumber, LLC. is a leading plumbing and drain company serving Maryland and Washington D.C. Our certified professional plumbers are available same day to assist residential customers in Charles County, Montgomery County, Prince George’s County, and Washington D.C. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"Tried to schedule a routine maintenance appointment available to customers who signed up for service plans, but Len could not follow through with their commitment three failed/rescheduled appointments in a row!! Each required four hour commitments from the customer. I tried to communicate with dispatch and customer service but unfortunately I don’t think these two departments have an open line of communication between them. I would not recommend for anyone to work with or engage with this company. Len did not follow through on their half of the commitment and disrespected my time as an in office working professional."

Kayla B on July 2025


Joseph plumbing & drain

8903 34th Ave
4.91(
128
)
Approved Pro

Joseph plumbing & drain

8903 34th Ave
4.91(
128
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
458 local quotes requested

Joseph Plumbing & Drain, LLC is College Park's premier plumbing company. Call us for all of your plumbing needs. With 15 years experience we aim to not only meet but exceed your expectations. Call us today and see why your neighbors use Joseph Plumbing & Drain, LLC! Master License 72767

"Very kind and competent. Happy to give my money to a family business instead of one of the plumbing giants. As far as pricing, I had a utility sink faucet and drain replaced, and two shut-off valves and a hose bib installed, and was charged $2,500."

Corey M on September 2025

Joseph Plumbing & Drain, LLC is College Park's premier plumbing company. Call us for all of your plumbing needs. With 15 years experience we aim to not only meet but exceed your expectations. Call us today and see why your neighbors use Joseph Plumbing & Drain, LLC! Master License 72767

"Very kind and competent. Happy to give my money to a family business instead of one of the plumbing giants. As far as pricing, I had a utility sink faucet and drain replaced, and two shut-off valves and a hose bib installed, and was charged $2,500."

Corey M on September 2025


Avatar for Sam Plumbing & Drain

Sam Plumbing & Drain

6422 Kristin Drive
5.00(
6
)
Approved Pro

Sam Plumbing & Drain

6422 Kristin Drive
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
52 local quotes requested

I’ve been working as a plumber for 8 years. I understand every home and customer is unique. I listen to what you have to say and work with you to find solution that is quick and affordable. I will also tell you exactly when I’m coming and what I’ll do, leave you a written note after, and always give you references and contact info.

"Hall and basement Toilet clogged up."

Sheila J on August 2025

I’ve been working as a plumber for 8 years. I understand every home and customer is unique. I listen to what you have to say and work with you to find solution that is quick and affordable. I will also tell you exactly when I’m coming and what I’ll do, leave you a written note after, and always give you references and contact info.

"Hall and basement Toilet clogged up."

Sheila J on August 2025


Avatar for GAC Services

GAC Services

227 E Deer Park Dr
4.80(
279
)
Approved Pro

GAC Services

227 E Deer Park Dr
4.80(
279
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
639 local quotes requested

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak K on February 2025

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak K on February 2025


"perfect! Sterling did a terrific job!"

Tom D on September 2024

We are a group of specialists in the field of plumbing and drain cleaning. see our Home Advisor and Google review to see what others are saying

"perfect! Sterling did a terrific job!"

Tom D on September 2024


Avatar for A&F Plumbing Services LLC

A&F Plumbing Services LLC

4.00(
4
)
Approved Pro

A&F Plumbing Services LLC

4.00(
4
)
Approved Pro
30 local quotes requested
2 years of experience

A&F Plumbing Services LLC is a family-owned and operated plumbing company dedicated to providing top-quality plumbing solutions with a personal touch. With years of experience serving Prince George’s, Charles, and Montgomery Counties, we take pride in offering reliable, honest, and affordable services to homeowners and businesses alike. Our skilled team specializes in everything from routine maintenance and repairs to complex installations and emergency services. We treat every customer like family, ensuring professional workmanship, transparent pricing, and exceptional customer service. At A&F Plumbing, we are committed to keeping your plumbing running smoothly while building lasting relationships with our community. Contact us today for trusted plumbing services with a family-first approach!

"Excellent customer service and professional work was done."

Betty F on June 2025

A&F Plumbing Services LLC is a family-owned and operated plumbing company dedicated to providing top-quality plumbing solutions with a personal touch. With years of experience serving Prince George’s, Charles, and Montgomery Counties, we take pride in offering reliable, honest, and affordable services to homeowners and businesses alike. Our skilled team specializes in everything from routine maintenance and repairs to complex installations and emergency services. We treat every customer like family, ensuring professional workmanship, transparent pricing, and exceptional customer service. At A&F Plumbing, we are committed to keeping your plumbing running smoothly while building lasting relationships with our community. Contact us today for trusted plumbing services with a family-first approach!

"Excellent customer service and professional work was done."

Betty F on June 2025


Avatar for DAY & NIGHT PLUMBER LLC

DAY & NIGHT PLUMBER LLC

PO Box 539
4.84(
88
)
Approved Pro

DAY & NIGHT PLUMBER LLC

PO Box 539
4.84(
88
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
129 local quotes requested

We have 19+ years of plumbing experience to service in residential clients. We are drain cleaning specialists. We have extensive experience performing repairs on different piping systems, snaking drains, fixing leaks, and installing pipes and water heaters. We provide free estimate.

"They were very professional. They showed up on time and did a great job. I was working from home and they caused minimal noise and disruption."

Kristy H on September 2025

We have 19+ years of plumbing experience to service in residential clients. We are drain cleaning specialists. We have extensive experience performing repairs on different piping systems, snaking drains, fixing leaks, and installing pipes and water heaters. We provide free estimate.

"They were very professional. They showed up on time and did a great job. I was working from home and they caused minimal noise and disruption."

Kristy H on September 2025


Avatar for Douglas & Son Services

Douglas & Son Services

4.78(
18
)
Approved Pro

Douglas & Son Services

4.78(
18
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
31 local quotes requested

Douglas Plumbing, Heating & Air Conditioning, LLC, a Maryland limited liability company, trading as Douglas & Son Services (hereinafter referred to as “Douglas & Son Services”) specializes in, but is not limited to, providing residential and light commercial plumbing, gas, heating and air conditioning services in Washington, D.C., Maryland and Virginia

"They are very informed about systems throughout the house and are active educators for their clients for MAINTENANCE and saving money! The family owned business is impressive, as their son is ALREADY a JOURNEYMAN in both plumbing and I believe soon to be HVAC expert as well. They are serious about their knowledge and offerings. - Erin Fussell"

Erin L on January 2025

Douglas Plumbing, Heating & Air Conditioning, LLC, a Maryland limited liability company, trading as Douglas & Son Services (hereinafter referred to as “Douglas & Son Services”) specializes in, but is not limited to, providing residential and light commercial plumbing, gas, heating and air conditioning services in Washington, D.C., Maryland and Virginia

"They are very informed about systems throughout the house and are active educators for their clients for MAINTENANCE and saving money! The family owned business is impressive, as their son is ALREADY a JOURNEYMAN in both plumbing and I believe soon to be HVAC expert as well. They are serious about their knowledge and offerings. - Erin Fussell"

Erin L on January 2025


Avatar for Jimmy Gusky Heating & Air LLC

Jimmy Gusky Heating & Air LLC

2604 Connecticut Ave NW
4.31(
358
)
Approved Pro

Jimmy Gusky Heating & Air LLC

2604 Connecticut Ave NW
4.31(
358
)
Approved Pro
Customers say: Terrific value
29 local quotes requested
29 years of experience

Family owned & operated. Jimmy Gusky LLC is here to serve you in the warm and cold seasons. With more than 30 years of plumbing & HVAC experience, we work on every project with attention to detail and time. HVAC, plumber, commercial plumbing, repair boilers, heating repair. Additional DBA - JCF Inc .

"Jimmy showed up to my home during a time when my thermostat was not working. That issue was fixed. He sold me a services contract and told me when he returned to services the units, he will cover the pipes outdoors. I purchased the contract for twice per year maintenance. I scheduled with him for a specific date. Appointment was confirmed but Jimmy did not show. When I called, he it appears that he forgot my appointment and he rescheduled saying he could not work in the rain. He rescheduled for a few days after and one of his workers showed up (Carlos). The guy showed up looking like he was someone who does not want to work and unprepared. So, I asked him if he has filters and he said know. Jimmy's workman did not bring filter, so I offered him filters I had stored. I asked him if he bought things to cover the pipes at the back, he said no. I called and left a message for Jimmy. Carlos was so rude and unprofessional. I was so scared of him and the way he was behaving. Carlos then said he would NOT do any service. IT WAS A WASTE OF MY TIME. He did return my money. BUT I will not recommend him. Will NOT use him again. As woman I will not hire again. Customer services was poor, reliability and punctuality poor."

Bibi K on October 2022

Family owned & operated. Jimmy Gusky LLC is here to serve you in the warm and cold seasons. With more than 30 years of plumbing & HVAC experience, we work on every project with attention to detail and time. HVAC, plumber, commercial plumbing, repair boilers, heating repair. Additional DBA - JCF Inc .

"Jimmy showed up to my home during a time when my thermostat was not working. That issue was fixed. He sold me a services contract and told me when he returned to services the units, he will cover the pipes outdoors. I purchased the contract for twice per year maintenance. I scheduled with him for a specific date. Appointment was confirmed but Jimmy did not show. When I called, he it appears that he forgot my appointment and he rescheduled saying he could not work in the rain. He rescheduled for a few days after and one of his workers showed up (Carlos). The guy showed up looking like he was someone who does not want to work and unprepared. So, I asked him if he has filters and he said know. Jimmy's workman did not bring filter, so I offered him filters I had stored. I asked him if he bought things to cover the pipes at the back, he said no. I called and left a message for Jimmy. Carlos was so rude and unprofessional. I was so scared of him and the way he was behaving. Carlos then said he would NOT do any service. IT WAS A WASTE OF MY TIME. He did return my money. BUT I will not recommend him. Will NOT use him again. As woman I will not hire again. Customer services was poor, reliability and punctuality poor."

Bibi K on October 2022


Avatar for HPC Services

HPC Services

14 Iron Gate Drive
5.00(
14
)
Approved Pro

HPC Services

14 Iron Gate Drive
5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
363 local quotes requested

No call out fee! Call today for your free quote! 15% Military and Veterans discount! $50 Water Heater Tune Up! $50 AC Tune Up! HPC Services is a proud Service Disabled Veteran Owned Small Business brining a fresh take on HVAC and plumbing to Maryland. Our technicians are trained to service, repair, and maintain your systems. HPC Services offers HVAC servicing and repair, HVAC replacement, new HVAC installations, ductwork, duct and vent cleaning, plumbing services and pipe repairs, main drain line snaking, line snaking, drain cleaning, clog removal and more! Financing available!

"Brandon identified and isolated the water leak immediately. His expertise and speed were unmatched."

Ashley S on February 2025

No call out fee! Call today for your free quote! 15% Military and Veterans discount! $50 Water Heater Tune Up! $50 AC Tune Up! HPC Services is a proud Service Disabled Veteran Owned Small Business brining a fresh take on HVAC and plumbing to Maryland. Our technicians are trained to service, repair, and maintain your systems. HPC Services offers HVAC servicing and repair, HVAC replacement, new HVAC installations, ductwork, duct and vent cleaning, plumbing services and pipe repairs, main drain line snaking, line snaking, drain cleaning, clog removal and more! Financing available!

"Brandon identified and isolated the water leak immediately. His expertise and speed were unmatched."

Ashley S on February 2025

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Percolation Tests questions, answered by experts

According to the National Cancer Institute, asbestos-related diseases can take anywhere from 10 to 40 years for symptoms to appear. The health risks increase with prolonged and heavier exposure. Risk factors also include:

  • Amount of exposure

  • Chemical makeup, size, and shape of the asbestos fibers

  • Length of time a person is exposed to asbestos

  • Genetic factors 

  • Source of exposure (direct exposure or secondhand exposure from someone directly exposed)

DIY kits are available, but professional testing ensures accurate results and compliance with regulations.

If you have an older electrical system with fraying wires and other signs of damage, removal  may be the best course of action. When asbestos begins to break down, it's more likely to become airborne, increasing the risk of health issues when it's inhaled.

However, if the system is in good condition and doesn't have visible signs of wear or damage, leaving it alone may be the safest course of action. An asbestos abatement and removal professional can help you determine the best way to proceed.

Asbestos siding is harmful as it can produce fibers that, once inhaled into your respiratory system, may cause mesothelioma, other lung cancers, and a dangerous scarring of the lung tissue called asbestosis. You can contain the siding within a series of barriers, but it is our recommendation that you hire a professional to remove any asbestos in your house. Its presence can permanently alter your health and the value of your property by as much as 10% or more.

More than likely, you will not notice exposure symptoms for quite some time, which is one of the reasons why asbestos is so dangerous. Shortness of breath, persistent coughing, chest pain, and other respiratory symptoms are signs of severe asbestos poisoning that typically lead to more dangerous conditions, such as mesothelioma, asbestosis, and other forms of lung cancer.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Colmar Manor, MD homeowners’ guide to percolation testing services

From average costs to expert advice, get all the answers you need to get your job done.