Why Your Hot Water Pressure Is Low and What to Do About It




Did you ever jump into a HOT shower expecting a nice hits-you-just-right shower, only to be met with a disappointing dribble? Well, then welcome, you’re officially a member of the “Low Hot Water Pressure Club”. But, let’s face it, it’s a club no one in Tulsa – or anywhere else for that matter – wants to join.

Thankfully, Maston’s is here to help you understand what’s causing your low hot water pressure and, more importantly, how to fix it. So, shall we?  

water heater with Maston's logo sticker

The Letdowns of Low Hot Water Pressure 

Low hot water pressure can transform simple pleasures into frustrating tasks. And, the causes can range from the obvious to the obscure. Seriously. There’s more than a handful of things that could have gone wrong! 

The cause of your low hot water pressure could be sediment buildup in showerheads and taps, a water leak, clogged filters, a shotty tempering valve, or something else altogether. From issues with your water heater to problems with your plumbing, there’s a whole compilation of potential culprits. And yes, sometimes it’s as simple as someone else in the house using up all the hot water.  

Look, low hot water pressure is a common complaint among Tulsa area homeowners. The answer? Calling our plumbers at Maston’s! But before y’all call us, we’re going to talk you through some of the main causes of low hot water pressure just in case you can troubleshoot it. 

What Causes Low Hot Water Pressure? 

Sediment Build-Up  

The water running through your pipes over time will likely have minerals & sediment accumulate inside your water heater, causing a blockage that slows down the water flow. Think of it like a traffic jam during rush hour.  

Check whether the intensity of your hot water pressure matches that of the cold taps. If only the hot’s a problem, then you may want us to come out and flush your hot water unit. It happens: the aging and corrosion of your tank often lead to sediment and scale buildup, which gradually obstructs the flow and diminishes the pressure of your hot water supply. 

Malfunctioning Pressure Regulator or Tempering Valve 

Okay, the hot water system’s tempering valve is what makes sure the hot water temperature doesn’t literally burn you. But like other parts, they can break and need to be replaced. 

Low hot water pressure can also be caused by a malfunctioning pressure regulator. There are all sorts of valves in your unit, or it could be several other issues. In fact, low hot water pressure may be a sign of a larger plumbing issue or a failing water heater. Calling a professional plumber can help diagnose and fix the cause of low hot water pressure. 

Check the Filter 

Some hot water units are fitted with filters on the inlet and outlet. These also can collect sediment & debris build-up. If you tell us your system type, we can let you know if a blocked filter may be the issue. It’s fairly easy to clean or replace.   

Showerheads & Faucets on the Fritz 

If you are experiencing low hot water pressure in just one spot, the solution may be fairly straightforward. Is the hot water pressure low in your shower but normal from other faucets? It is possible that there is a blockage in the showerhead. If you have recently moved in, make sure that the showerhead is cleaned and have a pro plumber do an inspection – we’ll see more than a home inspector.  

The same goes for your kitchen sink takes forever to fill when you just want to get the dishes done. Older faucets can have low pressure, which can be resolved by replacing washers or updating the entire faucet. 


What else gets blocked up? Your pipes do, y’all! 

Debris, rust, calcium, sediment, and other deposits are typically the main culprits behind blocked pipes. Sink drains are a simple do-it-yourself solution for addressing some of these issues. But a call to your local Tulsa plumbing company may be necessary to repair hot water pipes. 

It Could be a Water Leak 

A leak is undoubtedly the most feared culprit behind low hot water pressure, but identifying it is surprisingly simple – just make your way to the water meter and check if the numbers are still spinning – even when all faucets are turned off. 

The source of the leak could lie within the hot water system itself. It could be a leaking tank or faulty connections in the pipes leading to the unit. In such an event, immediately reach out to emergency plumbing professionals to avoid potential water damage or, worse yet, water reaching electrical wiring. 

Recent Installation 

Now, if Maston’s did the job, you can be sure a fully professional & compliant job was done. Plus, we stand by our work…But if not, the root cause of your low hot water pressure could be improper installation – could have been a DIY fix, an unlicensed handyman, who knows – but it’s a common mistake that can cause issues down the line.  

Is Your Hot Water System Old? 

Honestly, sometimes the problem is simply old age. If your system has deteriorated to the point that it is delivering water at low hot water pressure or leaking, it may be time for a system replacement.  

If your unit is not so old, then it may just need some maintenance, clearing, or leak repairs done by your trusty Maston’s Plumbing team.  

How Do I Know If I Have Low Hot Water Pressure? 

Alright, folks, it’s time to roll up your sleeves and get down to the nitty-gritty: how can you tell if you have low hot water pressure? Ask yourself:  

  • Is the problem isolated to one room, faucet, or showerhead? 
  • Is the water pressure low for hot AND cold water? Or just the hot water… 
  • Do you see any water or notice your hot water system leaking? 
  • Did you find leaking pipes? 

Once you’ve narrowed it down, call/text our team now. If you make the call, we’ll be right there to get your hot water fixed fast!  

Maston's tech working on water heater

Fixing Low Hot Water Pressure 

Go ahead and try the checks above and see if you can narrow down the problem. While you can DIY changing or cleaning a blocked showerhead, you probably don’t want to go tampering with your hot water system (it’s dangerous and also not permitted without the right training/licenses). Always leave bigger fixes – or anything you’re relying on TikTok or YouTube for – to plumbing experts. 

If you can’t troubleshoot or you’re short on time, call us for an estimate. We know low hot water pressure is one of the most frustrating day-to-day plumbing issues. And as you can see, diagnosing low water pressure is not always straightforward, particularly without experience. 

Think you’re dealing with low hot water pressure, give us a ring. With the Maston’s Plumbing and Drain crew, you’ll always get fast service, upfront pricing, and guaranteed workmanship for your plumbing repairs! Armed with the right knowledge and a little help from our plumbing pros, you’ll be back to enjoying steamy showers and instant hot water in no time. Call/text our local Tulsa, OK area plumbers for a quote. 

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