Hard water is not necessarily bad for you to drink but it can have adverse effects on hair and skin. Otherwise, it is harmful to your home’s plumbing and any water-using appliances, resulting in a decrease in their efficiency and useful life.
If your business is in need of backflow preventer testing, repair, or maintenance then we have you covered. Because of codes, your small business or apartment building probably already has a backflow prevention device in place. However, over time, the device can malfunction, wear out or break. It is required that your business’s backflow preventer is tested annually.
At Zimmerman Plumbing, Heating & Air Conditioning, we have been serving the greater Harrisburg and Central Pennsylvania area since 1980. Our team of experienced technicians is more than happy to perform commercial backflow prevention services and perform any necessary repairs on your system.
When systems are working as they should, clean water will typically travel through municipal water lines into your business. Backflow occurs when this clean water reverses from its normal direction of flow. When the clean water is unintentionally reversed, suction begins to pull in polluted or contaminated liquids, gases, solids or mixtures from the structure into the system.
This backflow can contaminate the potable drinking water being distributed down the line.
Because backflow can bring in large amounts of harmful substances, it can be a health hazard to anyone using or consuming the water.
Backflow testing and prevention services determine if the polluted water is getting sucked into the clean water system from your commercial building. A professional is required to perform this testing annually to ensure that the system is working as it should and does not need any maintenance work or repairs.
Our trained and certified plumbers can test and repair businesses with up to 6″ piping. We have highly collaborated testing equipment to provide validation to you that your business has performed this mandated service. If there is a cross-connection in your system between dirty and clean water, it is important to have a backflow preventer in place.
However, if your commercial building is older, it might not have one. If this is the case, it’s best to install one to reduce the risk of backflow occurring.





















Higher priced but ABSOLUTELY the best service/quality money can buy.
My wife and I moved into our new house on Main Street Saturday. Monday night some boiler sensors went out on our radiators. Long story short our whole house started to leak from basement to 3rd floor. Their emergency services were ready to take our call at 9:30 at night. Jason walked us through how to shut off the boiler and step by step to keep further damage from happening.Fast forward to next morning less than 12 hours after the initial call took place Zimmerman’s had a technician in route to come take a look. Justin greeted us with a friendly smile and was master class in knowledge of our boiler and issues taking place. After a short time he discovered the reason for our problems. Soon enough we had a quote to fix our boiler.Not ready to jump ship and push our emergency to another day he asked if he could fix the boiler now. Justin worked for 2-3 hours until the boiler was up and running. Testing it multiple times to ensure it was functioning properly.Did I mention this all went down on 12/22 and 12/23 right before Christmas. I can’t thank Zimmerman’s enough for saving our holiday season and making us feel safe in our new home!
We highly recommend Zimmerman Plumbing and Heating in Mechanicsburg. We use them for all our heating & cooling needs. We got a new oil furnace several years ago. They had 3-4 levels of pricing. They’re not cheap, but their workmanship and Service is top-notch – the best I’ve ever come across in all my years. We have met Earnie Zimmerman personally. His guys are professional, super nice and trustworthy. We also used them for air conditioning splits in our house a few years ago- can’t recommend them enough.
Superb experience. Interactions with salesman (John), checkpoint with Mr. Zimmerman, interactions with administrative support staff and phenomenal install team (Josh and Niko) were in one word, superb. Highly recommend.
I own a local small business and we had a clog. The Zimmermanns were helpful and extra attentive in helping me to get the issue resolved immediately and outside of my peak business hours. Having a reliable plumber is wonderful- having an honest plumber who understands the unique challenges of dealing with a repair quickly, cost effectively and with a cheerful disposition is priceless. I highly recommend using this incredible family owned and operated business- they get it!
Highly recommend!! They sent a plumber to my house for a sewer back-up in less than two hours of my call when they opened on Monday morning even though I was a new customer. I got a quote for a gas line to a new gas stove on Friday and some time over the weekend, we had a back up of water from a floor drain into our basement. Bill was thorough, helpful and knowledgeable and he and a second guy worked really hard to resolve the problem. I am so grateful for their service. They also installed the new gas line when they were done with the sewer problem. I’m a customer for life!
We recently had a very disappointing experience with the service company assigned by our home warranty provider. Upon arrival, the technician insisted our air conditioning unit had not been cleaned and refused to proceed with service until it was. They even offered to clean it themselves for $350 on the spot.Since we had EZimmerman clean the unit back in May, we immediately contacted them to clarify the situation. They responded with exceptional professionalism and understanding, and within two hours, they sent a technician to reservice the unit. As we expected, the unit was not as dirty as the other company had claimed. Nevertheless, EZimmerman recleaned it thoroughly, treating us with the same courtesy and expertise we’ve come to appreciate from their team. They did not charge us for the additional service, and their responsiveness and integrity truly stood out.We continue to be impressed by the quality of work and customer care at EZimmerman, and I will wholeheartedly recommend them for any plumbing, heating, or air conditioning needs.
I recently had a mini split system installed by Zimmerman’s and was very satisfied with the service I received. The communication was excellent and they thoroughly prepared for and executed the job. The team coordinated perfectly with one another and communicated every facet of the install and usage of the units to me. It was a pleasure meeting Earnie and his team throughout this process and I am extremely grateful for the level of service that I received throughout each phase of the process. I highly recommend them to anyone looking to have work done on their homes and I will be happily working with them again in the future.
GREAT JOB! workers are super. A bit pricey but you get what you pay for and the owner, Ernie is very involved in the business.HIGHLY RECOMMEND THEM….
Our experience with Zimmermans was amazing! Scott Mease came to our home after hours on a Friday evening after we discovered issues with our plumbing. He was extremely knowledgeable and was quickly able to locate and fix our issue. Highly recommend this company!
Excellent service and decent prices. We had our water heater replaced and the work done was excellent our service man took exceptional care to keep all are…
First experience with Zimmerman, but it will not be our last. We had an electric problem, which we thought was not a danger. Although we called on a Saturday, Jayson arranged for Nick to come that day. Nick diagnosed the problem and fixed it. As we understand it, our issue was potentially dangerous. Thanks again for the wonderful service.
Our experience with Zimmermans was amazing! Scott Mease came to our home after hours on a Friday evening after we discovered issues with our plumbing. He was extremely knowledgeable and was quickly able to locate and fix our issue. Highly recommend this company!
Prompt and professional. Provided very detailed explanations and options.
Like doing business with them, Always very pleasant when here. Very dependable & get 2 the problem
DJ is a great tech who has serviced us a few times over the years. Punctual, thorough, and found an issue making some great value recommendations. Highly recommend Zimmerman.
Prompt and professional. Provided very detailed explanations and options.
Top of the line service!
Came out the next morning to fix our bathroom. Charged less than I expected. Always excellent service!!! I won’t use anyone else!!
The service was excellently performed and the visit involved no surprises. The staff was both courteous and informative. I would not hesitate to call Zimmerman for any future plumbing problems.
Hard water is not necessarily bad for you to drink but it can have adverse effects on hair and skin. Otherwise, it is harmful to your home’s plumbing and any water-using appliances, resulting in a decrease in their efficiency and useful life.
The most common type of water heaters are storage tank water heaters and are typically either electric or gas-fueled. Most water heater sizes are around 40, 50, or 80 gallons. A 50-gallon water heater is fairly standard. But with a family of 5 or more and/or high water heating demands like a jacuzzi tub, going with a larger capacity will be best. Due to energy standards, electric water heaters larger than 55 gallons are required to meet a specific Energy Factor (EF) rating and will most likely need to be a heat pump water heater, fortunately, these are very efficient.
Gas fueled water heaters tend to have a much better First Hour Rating (FHR) and recovery rate to provide better performance. Where often a 50-gallon gas water heater will perform more closely to that of an 80-gallon electric and will satisfy the needs of most typical households.
Just like all the appliances in your home, a garbage disposal needs regular maintenance. An easy way to clean it and have it smelling fresh is to run cold water into it, turn it on and put in a whole lemon cut in half along with a bunch of ice cubes. Another good cleaning method is to use a tray of frozen vinegar cubes with cold water to run through the system. Do not use chemicals in the garbage disposal, these will damage the system.
The team of technicians at Zimmerman Plumbing, Heating & Air Conditioning, understands how important clean water is for all of us. We will work closely with you to ensure your water systems are working as they should. We specialize in small businesses with size 6-inch pipes and under. We have have discounted rates when working on multiple systems and when combined with a plumbing maintenance agreement. So, if you are ready to schedule your small business’s next testing or you need to install a backflow preventer, reach out to us today!
We are more than happy to schedule a day and time that works best for you.

