Certain Services, Inc.

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(941) 300-1114

Well Water Treatment and Solutions in Southwest Florida

Know what’s in your well water and how to treat it for safe, clean water throughout your entire home. Certain Services, Inc. offers affordable and effective solutions for iron, nitrates, arsenic, hard water, hydrogen sulfide (smelly water), and more.

Certain Services, Inc. offers free basic water testing with fast, accurate results in most local areas. Enter your zip code to see if you qualify for free water testing!

We will perform a basic test on your water to determine your Total Dissolved Solids, Hardness, and Chlorine content and present you with a professional analysis of the results. We’ll also recommend water treatment solutions to fix the problems you have with your water. There’s no obligation to purchase anything and zero pressure. Our goal is to inform you of what’s in your water and how to fix it cost-effectively.

Hardness Minerals
What it is - hard water contains calcium and magnesium minerals which bond with everything they touch leaving "limescale" in their wake.

Treatment – Our guaranteed water softener provides the best option for soft water on the market. It improves the water throughout your entire home while protecting your appliances and fixtures.


What it is - Iron can come in a couple different forms including dissolved and non-dissolved. Both of which can leave red/orange stains on your sinks, tubs, and toilets and can be extremely hard to remove. Iron can also cause bacteria to grow and let off an unpleasant smell. Click here to learn more.

What it is - Chlorine is a chemical used by municipal & local water treatment plants to reduce harmful bacteria in the water supply. While this sounds good, chlorine and chloramines can cause a bacteria of their own to grow called trihalomethanes (TTHM) which is quite unsafe to drink or bathe in.

Treatment – The most efficient Chlorine reduction filter is Granular Activated Carbon (GAC) or Catalytic Carbon. Due to the high level of chlorine added to water by cities, you will really appreciate your water with chlorine reduction. See our Whole House Filtration page for more information.

Dirt & Sediment
What it is - dirt & sediment is just as it sounds. This is typically most common in well water or surface water that hasn't gone through a treatment facility.

Treatment – Dirt and sediment are found in almost all water supplies and will decrease the efficiency and lifespan of your appliances. For example, sediment in a water heater can prevent the heat from transferring to the water in the tank once sediment has built up in the bottom. Our whole house filtration system can help with this problem.

Smelly Water (Hydrogen Sulfide or Iron Bacteria)

There are typically two water contaminants that can cause your water to smell like sulfur or rotten eggs, one is Hydrogen Sulfide (H2S) and the other is iron or sulfates.

 H2S is a mineral that is released from the earth and finds its way into groundwater. It’s especially common in well water located near shale, sandstone, coal, peat, or oil.

 Occasionally, a rotten-egg smell in your water could also be caused by a water heater or by sewage pollution in your water. If you’re on city water, the most likely explanation is your water heater.

 The most important thing to note is that it is ALWAYS worthwhile to get your water tested as H2S poses a serious potential health risk including nausea, vomiting, and other serious health effects.

Learn more, here.

PFAS, Lead, & Cyst

Water in our area has frequently been positive for lead, cysts, and PFOA/PFOS. These chemicals have been found to exceed the levels set forth by health advisory organizations and may cause health problems.

The chemicals Perfluorooctanoic acid (PFOA), also known as C8, and Perfluorooctane Sulfonic acid (PFOS) are bio-permanent, resistant to direct oxidation, and do not break down naturally in the environment or the human body. Studies suggest that exposure to these chemicals may lead to cancer. 

Learn more about our PFAS removal systems, by clicking here.

Chromium 6

A new study by the Environmental Working Group reports that local drinking water contains hexavalent chromium, a toxic metal that has been linked to cancer. While the U.S. Environmental Protection Agency does not require the testing for the metal, the survey found that levels in our local water were pushing the levels proposed as a safety limit by authorities. This contaminant has been proven to cause cancer. You can search your zip code to see the amount in your municipal water supply here: https://www.ewg.org/interactive-maps/2016-chromium6-lower-48.php#.WXYljtPyu-l


Arsenic is a common water issue in Florida, however, it can be easily and affordably removed with an under-sink filter from Certain Services, Inc..

According to the CDC, “Arsenic can enter the water supply from natural deposits in the earth or from industrial and agricultural pollution. It is widely believed that naturally occurring arsenic dissolves out of certain rock formations when ground water levels drop significantly. Some industries in the United States release thousands of pounds of arsenic into the environment every year. Once released, arsenic remains in the environment for a long time. Arsenic is removed from the air by rain, snow, and gradual settling. Once on the ground or in surface water, arsenic can slowly enter groundwater. High arsenic levels in private wells may come from certain arsenic-containing fertilizers used in the past or industrial waste.” Click here to learn more.

Other Contaminants
What they are - common contaminants in our area can include nitrates, lead, arsenic, pharmaceuticals, and more. These are not included in the free water test, however, we do offer full laboratory testing at an affordable price.

Treatment – Protecting the water in your home is important, however ensuring the purity of the water you are putting in your body is even more crucial. Our Reverse Osmosis drinking water system will give you a peace of mind that your drinking water is healthy, and you are going to fall in love with this drinking water system that can provide up to 50 gallons per day of delicious water.

Free water testing analysis

Local Florida Reviews

Based on 189 reviews
Stew Rowles
Stew Rowles
17:03 23 Sep 22
I was extremely pleased with the Certain Services technician and his approach and knowledge. He took the time to explain to me how the water treatment system operated and what needed to be done as regular maintenance. It is never a good experience to learn you are in need of a major component replacement, but the technician fully explained our options and the impact of our non-functioning water softener.We will be making a decision very soon on replacing the water softener and based upon our initial exposure, it will Certain Services who does the work.1/11/2022I have been extremely pleased with the service provided by Certain Services. I believe you provided the services we needed without trying to up-sale us and your service personnel have been professional and personable.I like the way you do business and in the future I will call Certain Services for our water and plumbing needs.09/21/2022I continue to be very pleased with Certain Services. Their field technicians are prompt, professional and courteous. Scheduling was convenient and seemed well managed.
Sherolyn Maitland
Sherolyn Maitland
15:39 22 Sep 22
This company is great! they have come to our rescue on two occasions fitting us in when we didn’t have an appointment. and all of the staff we have dealt with have been awesome we highly recommend this business.
Maureen Brady
Maureen Brady
14:35 15 Sep 22
I had water loss due to an issue with water treatment system. I called and got a service person here the same day. Cody arrived on time, he was knowledgeable, polite and informative. As a widow service people seem to see a mark. This did not seem to be the case. Cody made sure I saw and understood what was going on. Thank you
12:53 13 Sep 22
From sales to installation the process was extremely efficient and easy. Lori my sales person was kind, informative and not pushy which is why I decided to purchase from Certain rather then the their competitors.Once we signed the agreement installation was setup for Two days later.Installation was easy and no hassle.My system was setup on the outside for easy access for when they come to maintain the unit and the reverse osmosis did not take up much room under my sink!Highly recommend the team at Certain!
Connie Rowe
Connie Rowe
22:11 11 Sep 22
We are very pleased with our whole house RO System. The crew from Certain Services who installed the system were very knowledgeable and personable. They thoroughly explained the system to us upon completion.
Whit Just
Whit Just
16:58 01 Sep 22
After buying my house I have used them on 4 different times. Each time they have fixed my system at a reasonable price. The service men are always friendly and do great work. They have my business
Kelly DiNenna
Kelly DiNenna
22:33 29 Jul 22
I have had Certain Services for many years and have always had the most professional interactions and service provided for my house. I appreciate their promptness when there are issues, and there great customer service. Thank You!
Frani Gains
Frani Gains
17:19 21 Jul 22
Certain came for an estimate very soon after my first call and gave me an estimate the same day, Joe replaced my faucets, repaired several items, and got my water system all in good shape. The price was great. I have already shared this with my neighbors and I have a few more items that I will be calling Certain for. GREAT COMPANY!!!
Anne Moreau Gallant
Anne Moreau Gallant
18:46 08 Jul 22
We decided to purchase a whole house RO and after getting a referral from a friend and checking out Certain Services we decided to go forward with it. It's only been 2 days, but we love it. The install took about 6 hours and was completed with ease. Very professional plumbers that did the install. Joe explained everything once he was done and it was the best money spent in a long time.
Gary Mount
Gary Mount
21:43 13 Jun 22
Professional from start to finish. Great communication, arrived on time, performed all requested repairs to my very high standards and didn't mess up my house. Very customer friendly technician, Joe Puda. I will use this company for all my future plumbing needs.
Amazing company. Great communication from office and technician. Timely and very fair pricing. Have used for home and business needs. Highly recommend!
Nancy Keppel
Nancy Keppel
20:31 09 May 22
We had a super experience with Certain Services, Inc this week. They sent a great tech, Brian, who worked quickly, efficiently to resolve our Remote Osmosis issues. Brian arrived on time, removed his shoes (without being asked)…all his tools & towels were clean, he left everything immaculate, They are now our ‘go to’ company for water issues.
Michael Faretta
Michael Faretta
17:40 25 Apr 22
I feel bad that it took me so long to leave a review. I have been using Certain Water Services for years. When Mr Certain stops by to look at the problem and give an estimate you will be left with a good feeling. I always felt Bill gave me the best solution at a reasonable price to solve the problem. He just stayed on the problem at hand and never tried to up-sell me. I have used him to replace a well pump, install a new water softener and a new hot water tank. Give yourself a break and call an honest qualified person first!
Jordan Sines
Jordan Sines
16:44 29 Mar 22
Certain Services is the best in the area for your water needs! Bill came to my home to test my water and tell me about different options for a whole home replacement system. He went above and beyond helping our family with a new system. The next week it was installed and my water is so much better than it was. I don't remember the names of the 2 technicians who installed it, but they were kind, informative, helpful, and answered all my questions. Thank you so much for everything Certain Services! Don't hesitate to call them for any water needs you may have!
Gvelasa -
Gvelasa -
18:27 08 Mar 22
Brian was very professional and friendly.He did a pretty good job.
Jim Shelton
Jim Shelton
17:18 07 Feb 22
Circuit breaker was shutting off electricity to the irrigation pump. I called Certain Services and a repairman came out the next day. He found the tank to be bad and replaced it. It now works better than it ever did.
Angela Allard
Angela Allard
14:33 01 Feb 22
Always excellent service with very friendly and helpful staff. Prices are very reasonable and we've never been disappointed with any aspect of work done. Very highly recommended for all your water needs.
Mary Jo Uhen
Mary Jo Uhen
14:42 28 Jan 22
Our well water was unusable. We had a water softener and aeration tank but the appliances, faucets and pipes were all corroded with minerals. The water was so salty that you could not even take a shower. We did some extensive research on water systems and had four companies give us estimate and tell us what we needed. Certain Services provided us with the most in-depth explanation of what the issues are with our well water and how it could be fixed. We decided to go with an entire home RO system. The system was installed by a very professional team that explained each component. They kept thing neat and tidy. They returned the following day to fix a few minor leaks. Our water is perfect. We are extremely happy with Certain Services and the water that we now have throughout our home. I highly recommend this company and the professionals that work there.
Thomas Tapelt
Thomas Tapelt
01:36 09 Jan 22
Just had a whole house RO system put in and could not be more pleased. Took care of the smell and salt intrusion and replaced it with fresh good tasting water right out of the tap. Took a shower the next day and only had to lather up the wash cloth once as opposed to the 2 and three time that I previously had to. Did laundry and noticed I didn’t have to add vinegar to get rid of the funky smell in my laundry. Instillation was very professional, timely and informative. Joe explained the whole system and I took a video so we could remember everything if we had questions later. So thankful we choose Certain Services and look forward to our continued business relationship.
Kent Buyea
Kent Buyea
13:42 30 Dec 21
Very professional, in and out very fast and on time. Nick left the job as he found it. ( except for the new pump) completely satisfied with the job.
Next Reviews

More Customer Reviews

Kurt Tellschow

"We are very pleased with the water treatment system you installed for us. From the beginning, Kelly arranged an appointment for Mark to visit our home and assist us with our water quality concerns. First, Mark analyzed our water quality and in a very simply and thorough way, described the problems in detail along with the options we had.  From there we made an informed decision on what model fit our water needs and finances. The actual installation took place a few days later and was done very professionally and tidy. The technician explained how the equipment worked and answered all of my questions. The equipment has worked flawlessly, just as Mark said it would. Mark is due back in a few days to test our water again, to be sure it is calibrated perfectly. End of story. Thank you Certain Services for an outstanding experience and great water!"

Terry Tullman

"I was very happy with my experience from the initial call to and including writing the check. I was impressed with the accuracy of the time given for the arrival of the technician and his knowledge and efficiency in diagnosing the problem once he arrived. I was very pleased when he said he had a replacement pump on the truck and got to work immediately. I have worked in the plumbing supply business for over 40 years and am no stranger to actual plumbing installations. Cody was the consummate professional. He went about the pump replacement in an organized and expert manner. The bill was well within the range that I had surmised it would be. I will definitely call Certain for all my plumbing and water works needs with confidence."

Steve Howell

"Our experience was excellent. First of all, we got same day service! Nick was very professional. He was timely and got our system up and running correctly in no time. Most importantly to us during the pandemic, he respected our request to communicate via our cellphone. He did a great job explaining what the problem was, what he did to fix it, and the charges for the repair. Once again, Certain Services, Inc. has proven why they are our “go to” company for all things water related. Thanks for the great experience!"

Debbie Ruhstorfer

"You guys are tops in my book. Techs are knowledgeable and even take the time to explain what they are doing.  I like the fact that your techs have experience with your company, not always someone new. There is value in longevity in business."