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Coal Mountain is a community in north Forsyth County, Georgia — one of the recognized named localities in the county that sits further north along the GA-400 corridor toward Dawsonville and the Lake Lanier shoreline. The area has seen steady residential growth as Forsyth County’s population has expanded, with a mix of newer subdivision development and older established properties on larger lots. Benjamin Franklin Plumbing® of Alpharetta serves Coal Mountain as part of our Forsyth County territory, bringing the same licensed, background-checked technicians and flat-rate pricing that serve our Alpharetta and Cumming customers.
Coal Mountain homes span a range of construction vintages. Older properties on larger parcels along established Forsyth County roads may have plumbing systems with multiple generations of partial replacement, and in some cases older well-to-municipal conversion service lines that are worth assessing. Newer subdivision homes built in the 2000s and 2010s are entering the stage where water heaters installed during original construction are reaching the end of their expected service life.
Water heaters in Coal Mountain homes are often a deferred maintenance item. The 10-to-12-year expected service life means many homes in the area are on second or even third generation units. Annual flushing to remove sediment from the tank floor extends service life and resolves the popping and rumbling sounds that indicate buildup on the heating element. For tankless units, annual descaling is manufacturer-required maintenance that should not be skipped. We are a Navien NSS certified installer and offer a 10-year parts and labor warranty on Navien tankless installations.
Water service lines on larger Coal Mountain properties — particularly older parcels that were formerly served by private wells — can be a source of slow, undetected leaks that show up first as unexplained water bill increases or wet patches in the yard. The private service line from the county meter to the home is the homeowner’s responsibility, and long rural service lines have more exposure to soil movement and more potential failure points than typical suburban lines. Directional boring allows us to replace the line underground without open trenching, minimizing disruption to driveways and established landscaping.
Drain cleaning is a routine service throughout Coal Mountain, particularly in older properties with cast iron or clay drain lines that have accumulated grease, scale, or root intrusion over decades. Camera inspection of the main drain line is the most accurate diagnostic tool before any drain repair or replacement is recommended.
The Forsyth County water supply from Lake Lanier is relatively soft, meaning hard water scale is not the dominant plumbing concern here. Water service line condition is worth attention for older properties, particularly those that were formerly on well water and transitioned to county service. The private service line from the meter to the home is the homeowner’s responsibility, and lines that are decades old on larger rural-to-suburban lots can develop leaks that are difficult to detect before they produce visible yard saturation.
Benjamin Franklin Plumbing® of Alpharetta serves Coal Mountain and surrounding communities throughout north Forsyth County and Cumming. Available 24/7 — call (678) 833-2754 or book online. Licensed, background-checked, and drug-tested technicians. If we’re ever late, we pay you $5 for every minute — up to $300.
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Whether you have an emergency burst pipe, a water leak, or an overflowing toilet, we’re here to help. And we don’t just fix the problem, we take preventive measures to stop it from happening again.
Kylie Kurt
Brandon helped bring the pressure of our water down because it was way too high and added a filter to our ice maker so we don’t have so many calcifications in our ice! Brandon did a good job and was very nice. He cleaned up after himself and was always friendly. He was very knowledgeable and answered all the questions I had!
Kersten Scanlon
I have known the owner John for 15 years. He is very knowledgable about plumbing and can explain plumbing systems so well. He has given me great ideas and options when I am working on my house and I value his opinions and advice. Recently, I had a plumbing issue under the house and John took care of it. I am very happy with his work.
Daniel Moise
I’m gald to say that Benjamin Franklin in Palm Desert helped me install my water heater that failed. Luis and Hugo were very professional and kept the work area cleaned at all times even during the installation process. I highly recommend them for any plumbing needs in Coachella valley.
Eric R
I know the owner and worked with him. He is dependable, has pride in his work and always willing to teach. You can trust Benjamin Franklin Plumbing To be on time, do what they say they are going to do and always produce high quality work. Please give them a try you won’t regret it 😊
Beck Hasti
We had an old, barely functioning kitchen faucet replaced. The plumber (Brandon) was very professional and left the area very clean and dry. He also noticed some quirks in the plumbing in our 85 year old house (which also explained a water pressure issue we’d been having), letting us know what could be done to address it (& how much it might cost), should we choose to do something about.
Tyler Wood
Love them! On time, thorough, and informative. I tend to ask a lot of questions and they were more than happy to educate me. I’ve known the owner for over 15 years. Great guy. Ask for John.
Christina Walker
Hi Benjamin Franklin Plumbing Team, Thank you for following up regarding my basement drain issue. When we spoke a few days ago, I decided not to move forward with your services due to my budget. However, I want to express how much I appreciate your team's patience, kindness, and professionalism. The fact that you reached out today just to make sure my issue was resolved—even after knowing I chose another option—really stands out. If I could leave a six-star review, I would! Thank you again for your exceptional customer service.
Saeed Jassani
Excellent service. Very timely and professional. Reasonable price
Margaret Langley
Ethan was excellent right from start to finish! He was punctual, analyzed the problem, wrote up an estimate of cost and time required and completed as quoted. He was extremely polite, communicated as project progressed as well upon completion. I would definitely request Ethan for future work and highly recommend him.
Paul Hession
Excellent job!!!
Yes. Coal Mountain is within our Forsyth County service area and we dispatch from our Alpharetta location. We are fully licensed and insured in Forsyth County and can handle all residential plumbing work including permits and inspections. Call (678) 833-2754 for same-day service in most cases.
Yes — the private water service line from the county meter to your home is one of the first things worth assessing after a well-to-county transition. Older properties sometimes have the original well supply line repurposed as the service line, which may not be rated for continuous municipal water pressure. The meter box location and the line material, depth, and condition are all worth verifying. We can inspect the line visually and pressure-test the system to confirm everything is performing as it should.
Coal Mountain receives water from the Forsyth County Department of Water and Sewer, which draws primarily from Lake Lanier. The water is relatively soft and safe to drink. The most relevant treatment options are a point-of-use reverse osmosis system for drinking water — which removes disinfection byproducts and the trace PFAS compounds detected in Forsyth County’s 2024 water quality data at levels below EPA limits — and a whole-home carbon filter for taste and chlorine concerns. We are a Brita PRO authorized dealer and install and service both types of systems.
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