Proudly serving Atlanta and the surrounding communities

Water Pressure in the Home: High & Low

Water Pressure Gauge

Check the pressure in your home!

One of the important checks plumbers can make at your home is a water pressure test. The test usually involves hooking a standard water pressure guage (see below for a picture of one) onto an outside hose bibb (spiggot). 

High water pressure in a residence is a common problem. Many of the plumbing problems people notice in their house such as pipe noise, dripping faucets, running toilets, prematurly failing water heaters, and high water bills can be related to higher than optimal pressure. In Georgia, the potable water system in homes is not supposed to exceed 80 PSI. Water pressure in the municipal water mains is typically much higher than 80 PSI – sometimes well above 140 PSI. In order to reduce the pressure from the street pressure into the acceptable range, a Pressure Regulator Valve PRV is installed at the point where a water service line enters the home. If you have symptoms related to high pressure, the PRV in your home may not be doing it’s job. The recommended repair for this problem is a PRV is replacement. 

When customer is experienceing low water pressure, their fixtures (faucets, showers, etc) do not perform well. Washing, showering, cleaning etc are unpleasant, annoying or more difficult. One common cause of low water pressure in the home can be caused by a clogged or otherwise malfunctioning PRV.

A low pressure experience can also be cause be an undersized or crimped water line. In this case the pressure at an outside hosebibb (spiggot) may test normal. Uncovering a crimped/undersized line requires measuring the water pressure after fixtures are turned on in the house. The pressure reading taken when fixtures inside are in use is called the residual (or flow) pressure. 

An additional cause of low fixture can be malfunctioning or clogging at particular fixtures. If certain fixtures seem consistently lower pressure than others in the home, fixture problems may be the culprit. 

A Watts Presure guage is designed to connect to a residential hosebibb.


 Noticing high or low water pressure in your home may be difficult for the simple reason that water pressure issues can build over time. Because of the incremental changes in water pressure, many homeowners become used to the pressure as it changes. High or low pressure may feel normal to them. 

CONCLUSION:

Having water pressure checked on a routine basis is important. You may be missing an easy to fix problem that results in more costly problems later. Plumbing Express can perform a pressure check for you. Call us today for a quote (678) 439-9540

Plumbing Express

Plumbing Express 3050 Presidential Dr #202, Atlanta, GA 30340

What Atlanta Homeowners Say About Plumbing Express

Our 4.9-star rating comes from 2,000+ Google reviews written by real homeowners across Metro Atlanta. Here is what a few of them had to say.

Read more reviews on Google or visit our customer reviews page to see why Atlanta homeowners choose Plumbing Express.

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Jatara Ross
February 11, 2026

Service couldn’t be completed due to needing a new system. We appreciate the very informative visit as well as insight that could help after a new unit install.

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Bob Gallup
February 6, 2026

Plumbing Express was great. I had a failed sump pump that had partially overflowed into the basement. Nasty. Josh was the tech that did the work. He was efficient, neat and courteous. I will use Plumbing Express if I have any other plumbing needs and I will recommend them to my family and friends.

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Jim Kilburn
February 6, 2026

He was great

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Dwayne Cannon
February 6, 2026

The technician was very knowledgeable and professional. I believe they did a very good job.

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Freda Iaizzi
February 6, 2026

Ron was our second plumber from this company. The first plumber came, examined pipes and said he found no leak, even though we had experiences a large amount of water leaking from the ceiling in the finished basement. Several days later we had another leak-same area but less water the second time. Ron came in, listened to our frustration and did a more thorough inspection of the pipes and identified the problem. He was very personable and professional. On his third visit, we had several replacement pipes installed and are without leaks again. Our frustration, with the situation, was my son had used your company to replace pipes when he purchased the home and founding out not all the pipes were included with that process.

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Shaleypoley rocks
February 6, 2026

They always do a great job

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KB Johnson
February 6, 2026

Tim arrived on time and was very professional. He took his time to explain the problem and the process it would take fix the water line.

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Jay Betts
February 5, 2026

Called Plumbing Express as tankless hot water not operating. Their website states "Get Free Plumbing Quote ". When service man showed up an looked at unit he said there would be a $207 charge to look into unit in order to give me a quote to fix unit. Due to not having hot water and time required to get another company to address the problem I agreed to pay $207 for quote. After looking in unit I was told he would not be able to fix due to age of unit and parts not available. I think he should have said parts not available when seeing model number on front of unit and I would not have wasted $207.

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Kim Isaacs
February 5, 2026

Outstanding customer service, we will definitely be using them in the future for any plumbing needs. Can’t thank them enough!

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Ray Reynolds
February 4, 2026

Extremely knowledgeable and very helpful. The team was excellent. The job was completed in 1 day with a great team. Very expressive.

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Elizabeth Miller
February 3, 2026

Daniel Perez was great in coming out to check the problem I had with a water leak from my air conditioner line. His recommendation was correct.

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Nicholas Stodd
February 2, 2026

Great and informative service while I was in a bind without a functioning water heater.

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Sharron Stephens
February 2, 2026

Plumbing Express is my go-to plumbing support team. They have fair pricing, well-vetted technicians, and a truly exceptional scheduling system. Rod, my technician, was the best. He quickly assessed the problem and gave a fair estimate, working hard to keep to the schedule. He even brought Josh along on the day of service, and the two of them worked well together. They addressed the bathtub drain repair with expertise and caused the least sheetrock damage. It was difficult to replace the broken pipe and get to the upstairs drain, but together they made it a success.

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On Cue
January 30, 2026

Daniel did a great job and was very professional during his service call last week!

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Victoria Tucker Limon
January 29, 2026

Rod and Josh did an awesome job taking care of my clogged sinks. Knowledgable, professional and great to work with - I really appreciated their help today and would highly recommend them and Plumbing Express!

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william VAUGHN
January 29, 2026

Daniel was excellent. The work he did was simply superb. I highly recommend your company and hopefully Daniel will get more and more work

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Christian Landon
January 29, 2026

Dylan from Plumbing Express came over and replaced our garbage disposal for us. It was older, had a massive leak, and needed to be replaced. He did a great job and was in and out in about 30 minutes! I also asked him to check out a potential leak I had been hearing in my ceiling. He used a thermal camera to investigate and was very honest and upfront about what he found. Rather than immediately cutting into the drywall to confirm something uncertain, he explained that the sound could simply be pipes expanding and that opening the wall might be unnecessary. He recommended monitoring the area and waiting to see if a wet spot appears, which would clearly indicate an actual leak. I really appreciated that he didn’t try to upsell or push unnecessary work. Overall, great service and a great guy. They will definitely be our go-to plumbing service from now on.

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Mitchell Klasky
January 28, 2026

Tim was fast and explained options clearly

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Jo-Ann Caster
January 27, 2026

Once again we had some problems under our kitchen sink so we called Plumbing Express who were able to get us on their schedule pretty quickly after these storms Tim Robinson came out to do the job. Tim has been to our house for a number of different plumbing problems. He is personable & professional. As usual he did a great job even though this particular problem turned out to be far more difficult than anyone had expected. As frustrating as it was, Tim worked through it until he finished the job. We can't thank him enough.

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Robin R
January 27, 2026

Anthony was very competent, professional and friendly. He answered all my questions throughly. Highly recommend!