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Backflow Testing
Backflow Preventer Testing: What it is and Why it is Important Backflow preventer testing is the process of checking a backflow prevention device to ensure it is working properly. A backflow prevention device is a critical component in a plumbing system that helps to...
Water Heater Installer Near Me | Silver Spring-MD
If you live or work in or around the Silver Spring, MD and need to have a hot water heater installer to replace or repair an old or defective water heater. Look no further than Durance Plumbing. We offer complete water heater repair, replacement, and installation...
Drain Cleaning Services in Columbia,MD
If you live in Columbia,MD and have tried tried various do-it-yourself drain cleaning methods and still aren't satisfied with the results. Call Durance Plumbing... we provide professional drain cleaning services in Columbia,Md and the surrounding...
Clogged Drain Repair
We fix clogged drains in Silver Spring,MD and anywhere else in Montgomery county. And we always will give you a free estimate before any work is done. Call us at 301-270-6663... dependably serving the Washington metro area for more than twelve years.
Backflow Preventer Test
We perform the WSSC mandated Backflow preventer test and Backflow assembly installation in Bethesda, Rockville, Silver Spring, Takoma Park, Chevy Chase and other cities and towns in Montgomery county, Maryland. The WSSC states that backflow preventer assemblies have...
Backflow Preventer Testing
The Inspection and testing of backflow preventer valves is required by the WSSC to keep contaminated water from infiltrating our drinking water. Why the is Backflow Inspection Test Needed? Backflow preventer testing ensures that no impurities or chemicals enter the...
Schedule a Whole Home Plumbing Inspection
It's the most wonderful time of the year-NOT!!!... if you're dealing with clogged drains and leaky pipes or a faulty hot water heater!!The holiday season is no time to have a plumbing failure..but it happens frequently during this time of year. The drastic changes in...
Who Invented The Indoor Plumbing System?
Did you know? Indoor plumbing first became available in more developed areas of this country during the end of the 19th century. The water closet and drainage system used to create this was oddly enough created by Thomas Crapper. That is where the slang for the word...
Save Water this Summer Infographic
The following infographic gives you tips on how to conserve water outdoors during the hot summer months. For instance, did you know that a 20 minute watering of the average lawn can use more water than taking 130 showers?..Now that's a lot of water. Feel free to share...
How to Choose a Plumbing Company
Not all plumbing companies are created equally, and before you choose a plumbing company for your next project you should read this: There are basically two types of plumbing companies: small-scale family-owned plumbing companies, and larger-scale oriented...
Commonly Asked Questions
1. What types of plumbing services do you provide?
At Durance Plumbing, we offer a comprehensive range of plumbing services, including:
General plumbing repairs (leaks, clogs, fixture replacements)
Water heater installation and repair (tank and tankless systems)
Sump pump installation and maintenance
Drain cleaning and hydro-jetting
Sewer line repair and replacement
Backflow prevention testing and installation
Pipe installation and repair (copper, PEX, etc.)
Bathroom and kitchen remodels
If a specific service you need isn’t listed, feel free to contact us—we’re likely able to help with any plumbing project.2. What is backflow testing, and why is it important?
Backflow testing ensures that your potable (drinkable) water remains uncontaminated by non-potable water due to pressure changes. Backflow can bring chemicals, waste, or bacteria into your clean water supply, which is why local regulations often require testing.
In St. Mary's County, backflow devices only need to be tagged, but other counties may have stricter rules. We are licensed to perform backflow testing to keep your water safe and in compliance with local codes.3. Do you offer plumbing services outside of business hours?
Our business hours are 8:00 AM to 5:00 PM, Monday through Friday. We do not offer services outside of these hours. Please contact us during business hours to schedule an appointment.
4. What areas do you service?
We proudly serve the Washington, DC metropolitan area, including:
Montgomery County: Rockville, Gaithersburg, Takoma Park
Prince George's County: Bowie, Laurel, College Park
We do backflow testing in Maryland, Virgina and DC
If you’re unsure whether we cover your area, feel free to call us, and we’ll be happy to confirm.5. How much do plumbing services cost?
The cost of plumbing services varies depending on the type and complexity of the job. Whether it's a simple repair or a larger project like a water heater installation, we provide transparent pricing so you know the cost before we begin the work.
6. What kind of warranties do you offer?
We offer warranties based on the service:
Repairs come with a one-year warranty on parts and labor.
Water heater installations include manufacturer warranties, which typically range from 5 to 12 years, and we offer a one-year labor warranty.
Pipe repairs and replacements come with warranties up to 10 years, depending on the materials used.
We’ll provide specific warranty details for your service when you schedule your appointment.7. What types of plumbing services do you provide?
At Durance Plumbing, we offer a comprehensive range of plumbing services, including:
General plumbing repairs (leaks, clogs, fixture replacements)
Water heater installation and repair (tank and tankless systems)
Sump pump installation and maintenance
Drain cleaning and hydro-jetting
Sewer line repair and replacement
Backflow prevention testing and installation
Pipe installation and repair (copper, PEX, etc.)
Bathroom and kitchen remodels
If a specific service you need isn’t listed, feel free to contact us—we’re likely able to help with any plumbing project.8. What is backflow testing, and why is it important?
Backflow testing ensures that your potable (drinkable) water remains uncontaminated by non-potable water due to pressure changes. Backflow can bring chemicals, waste, or bacteria into your clean water supply, which is why local regulations often require testing.
In St. Mary's County, backflow devices only need to be tagged, but other counties may have stricter rules. We are licensed to perform backflow testing to keep your water safe and in compliance with local codes.9. Do you offer plumbing services outside of business hours?
Our business hours are 8:00 AM to 5:00 PM, Monday through Friday. We do not offer services outside of these hours. Please contact us during business hours to schedule an appointment.
10. What areas do you service?
We proudly serve the Washington, DC metropolitan area, including:
Montgomery County: Rockville, Gaithersburg, Takoma Park
Prince George's County: Bowie, Laurel, College Park
We do backflow testing in Maryland, Virgina and DC
If you’re unsure whether we cover your area, feel free to call us, and we’ll be happy to confirm.11. How much do plumbing services cost?
The cost of plumbing services varies depending on the type and complexity of the job. Whether it's a simple repair or a larger project like a water heater installation, we provide transparent pricing so you know the cost before we begin the work.
12. What kind of warranties do you offer?
We offer warranties based on the service:
Repairs come with a one-year warranty on parts and labor.
Water heater installations include manufacturer warranties, which typically range from 5 to 12 years, and we offer a one-year labor warranty.
Pipe repairs and replacements come with warranties up to 10 years, depending on the materials used.
We’ll provide specific warranty details for your service when you schedule your appointment.