- LicensedTexas Master Plumber 40980
- On call 24/7Licensed plumbers for emergencies
- Brazos ValleyCollege Station, Bryan and nearby
4L Contracting LLC is a licensed and insured master plumbing company based in College Station. That is about 24 miles north of Navasota on Highway 6, roughly a 28-minute drive. We serve Navasota and all of Grimes County. Call us at 979-473-9775.
Call 979-473-9775Request Service
Navasota Water Is Not What the Hardness Number Says
Navasota city water measures about 75.3 mg/L hardness (4.4 grains per gallon, genuinely soft to moderately soft). But the full picture is more complicated, and it matters for your plumbing and appliances.
683 mg/L
Total Dissolved Solids
477 mg/L
Alkalinity
~8.2
pH
75.3 mg/L
Hardness
What This Means for Your Home
High alkalinity and a pH near 8.2 make Navasota’s water a high-alkalinity sodium-bicarbonate type. The white residue you see on faucets, showerheads, and inside water heaters is carbonate and mineral solids. Not calcium scale from hard water.
This distinction matters: a standard water softener targets calcium and magnesium hardness. If your hardness is already low and the issue is alkalinity and TDS, a softener often does not fix the visible complaint. You may spend money on equipment that does not solve the problem.
How 4L Handles It
We test your water first and give you an honest read before recommending any treatment equipment. Depending on results, we will tell you whether a softener will actually help. We may recommend a different treatment approach instead, such as a whole-house carbon filter or a reverse-osmosis point-of-use system. Or the real fix may simply be servicing the water heater, and replacing aerators and cartridges that have accumulated mineral deposits.
Safety note: Navasota’s water system holds a TCEQ Superior rating. The water is safe to drink. The white residue and appliance issues are a nuisance and appliance-lifespan problem. Not a health or safety concern.
Older Homes, Historic Homes and New Construction
Navasota is really two plumbing markets under one city name, and each one calls for a different approach. We work on both.
Navasota Commercial Historic District
The Navasota Commercial Historic District was listed on the National Register of Historic Places in 1982. Victorian-era homes in and around the district often still have their original plumbing infrastructure:
- ▸Galvanized steel supply lines that have corroded from the inside out
- ▸Cast iron drain lines prone to joint failure and root intrusion
- ▸Undersized half-inch water mains that cannot keep up with modern demand
- ▸Drum traps: an obsolete trap design that catches debris and backs up
These homes require careful repair work. Replacing one section without accounting for the whole system can shift stress to the next weakest point. We plan staged repiping projects that respect both your budget and the integrity of a historic structure.
Growing Navasota: Newer Subdivisions
Navasota’s median home was built around 1988, and the city has grown quickly, from 7,643 residents in 2020 to an estimated 9,904 in 2025, a 29% increase. That growth means a wave of newer subdivisions with a different set of plumbing issues:
- ▸Builder-grade water heaters reaching end of life in the 10 to 15 year window.
- ▸PEX manifold systems with individual zone valves that can drift or fail
- ▸Pressure-regulating valves (PRVs) that lose calibration over time, stressing fixtures and supply lines
We diagnose and repair all of these. We will tell you honestly whether a repair extends useful life, or whether replacement is the smarter long-term call.
Whether your home was built in 1895 or 2022, 4L Contracting LLC has the license, the tools, and the experience to handle it correctly.
What our customers say
Published exactly as written, straight from Google.
Found late Friday evening that I did not have hot water, and it was the weekend... YIKES!! Contacted 4L Contracting LLC; they came out within a couple of hours and had me working in a short time. Lee went above and beyond, letting me know about other problems identified in my attic, a problem with my chimney, and a heating vent installation problem. After he left, I found a water leak in the laundry room ceiling. He turned around and came back to my house. He found the air conditioning drain pipe was backed up. He blew it out the drain pipe, preventing a big disaster. So appreciate his thoroughness and helping me on a Friday after-hours house call. He definitely went above and beyond.
I had a great experience working with 4L Contracting LLC. They were awesome to work with, they were professional, responsive, and clearly knew what they were doing. We had a massive leak that needed immediate attention, and they showed up quickly and handled it efficiently. They not only fixed the issue fast but also made sure everything was done right. I would absolutely recommend them to anyone needing reliable, high quality work!
Used 4L Contracting the first time a couple years ago and since then they have replaced a water heater, reset toilets, replaced water lines, and located and fixed a leak under the house! They have been amazing to work with over the years, I cannot recommend these guys enough!
Water Softener installation Completed! Just wanted to give a shout out to Kurt and Lane on their outstanding customer service today. I hired 4L Contracting LLC to install a water softener in our home. After finding out the water softener I had purchased was missing parts, the job was rescheduled for Monday. I was able to return the water softener and get a replacement fairly quick. So I sent a text to Kurt, letting him know I had done so. He informed me they were nearby and could do the job in about 30 minutes if I could meet them back at my home. I hurried home and in about 2 hours the job was completed. Tonight my wife and I shall enjoy a soft water shower!
My husband and I had a broken pipe in the foundation and it was leaking pretty bad into our hallway, and 4L Contracting came that day we called, assessed the issue, and was back the next day and completely fixed the problem. They were so nice and helpful! I cannot tell you how pleased we were with their service. I recommend 4L Contracting!
My wife and I discovered a water leak coming out of our wall. 4L Contracting LLC came out that day and found where the leak was coming from (copper pipe leaking in the slab), they started working immediately and finished the next day.
These plumbers are honest, knowledgeable and reliable! They helped us fix a leak and answered all our questions about other issues in the house. Highly recommend!
Lee and his guys are Great. Their communication on our projects have been superb! Always letting us know when they will be at the job site. Lee is doing 3 projects for our Airbnb's at one time, and his organization of his paperwork is paramount for us.
WHAT IT COSTS AND HOW YOU PAY
Price in Writing Before Work Starts
You get a written price covering the scope we recommend and what it includes. No verbal estimates. No extra charges added after the fact. You approve the scope and cost before we start.
Workmanship Warranty
Every installation we perform is backed by a workmanship warranty. If a problem with our work develops within the warranty period, we return and fix it at no charge to you.
Office Hours and Emergency Availability
Office hours Monday to Friday, 7 AM to 5 PM. Licensed plumbers on call 24/7 for plumbing emergencies. Reach us at 979-473-9775.
Winter Storm Uri and Boil Water Notices
Navasota and Grimes County are not strangers to freeze events and water-system disruptions. Knowing what to do after one can save your plumbing and your family.
What Happened Here
During Winter Storm Uri, Navasota issued a boil water notice on February 11, 2021 after a water main break caused by the extreme cold. Grimes County communities outside city limits have also experienced boil water notices. Anderson, Shiro, Richards and Roans Prairie have all seen them, linked to infrastructure stress and distribution line events.
Burst pipes from freeze events can hide inside walls for days before the water finds its way out. By then, damage is significant. Acting quickly after a hard freeze matters.
After a Boil Water Notice Is Lifted
When a boil water notice is lifted, the water is safe to drink again, but your home’s plumbing still needs attention to clear any contamination that may have entered the system:
- Flush every water line. Let cold and hot run at every fixture for several minutes.
- Pull and clean aerators on all faucets. Sediment and debris settle in them during low-pressure events.
- Drain and inspect your water heater. Sediment stirred up during a main break settles at the bottom of the tank.
- Replace filter cartridges on whole-house filters, refrigerators, and under-sink units
4L Contracting takes freeze-damage and burst-line calls across all of Grimes County. Office hours Monday to Friday, 7 AM to 5 PM. Licensed plumbers on call 24/7 for plumbing emergencies.
What We Do
Plumbing Services in Navasota and Grimes County
Every service we offer in College Station is available to Navasota and all of Grimes County, with no add-on travel fees, same pricing.
Water Heater Repair and Installation
Tank and tankless water heaters. We diagnose the problem, tell you honestly whether repair or replacement makes more sense, and give you the price in writing before we start.
Drain Cleaning and Clog Removal
Slow drains, full clogs, or a backed-up main line. We clear the blockage and let you know if the line has underlying issues that need attention.
Sewer Line Repair and Replacement
Camera inspection, line locating, targeted repairs, or full replacement. We find the problem precisely and quote both options so you can decide.
Slab Leak Detection and Repair
Electronic and acoustic detection to locate leaks under your slab without unnecessary demolition, followed by clean, precise repair work.
Gas Line Installation, Testing and Repair
New gas appliance, outdoor grill line, or a suspected leak. We size, install, and pressure-test all gas work to code.
Whole-Home Repiping
When aging galvanized steel or failing cast iron is the root problem, a full repipe with modern materials stops the cycle of repeated repairs.
Fixture and Faucet Installation
Dripping faucets, running toilets, loose shut-offs, and failing valves. Small repairs done right the first time so they do not come back.
Water Treatment and Softener Installation
We test your water first, then recommend the right solution. That might be a softener, a different treatment system, or simply servicing your heater and replacing aerators and cartridges. We never sell equipment before testing.
Commercial Plumbing: Navasota Businesses
From Navasota restaurants and retail to light industrial sites, we handle commercial plumbing needs under Texas Master Plumber License 40980. That includes grease interceptors, backflow prevention, commercial water heaters, and code-compliant gas piping.
Not sure where to start?
Talk to a licensed plumber
Describe what your plumbing is doing and we will tell you what it likely is before anyone comes out.
Growing Commercial Navasota
Navasota’s commercial and industrial base is expanding, and that growth creates real demand for qualified commercial plumbing work. 4L Contracting is ready to meet it.
Backflow Prevention
Installation and replacement of backflow prevention assemblies required by code for commercial and industrial sites. Annual certification testing is performed by a licensed backflow assembly tester and is not something we do in house.
Grease Interceptors
Sizing, installation, and servicing of grease interceptors for restaurants, commercial kitchens, and food-service operations.
Commercial Water Heaters
High-capacity tank and tankless water heater systems for businesses, multi-family properties, and light industrial facilities.
Code-Compliant Gas Piping
Commercial and industrial gas line installation and pressure testing to meet Texas code requirements for manufacturing, restaurant, and commercial use.
4L Contracting LLC handles commercial plumbing for Grimes County businesses under Texas Master Plumber License 40980.
Licensed, Insured and Local
Before you hand anyone the keys to your plumbing, here is what you can verify about 4L Contracting LLC.
Texas Master Plumber License 40980
We hold Texas Master Plumber License 40980 issued by the Texas State Board of Plumbing Examiners. Verify any Texas plumbing license at tsbpe.texas.gov .
Fully Insured
We carry general liability insurance on every job. If something unexpected happens on your property, you are not left holding the bill.
Serving Brazos Valley Since May 2021
4L Contracting LLC has been serving College Station, Navasota, and the surrounding region since May 2021. Every job adds to our local track record.
Responsible Master Plumber
All work is performed under the license and direct supervision of our Responsible Master Plumber, not a day-laborer or unverified subcontractor.
5 star: 5 star rated service
We hold a 5 star rating. Every review is from a real customer. We do not incentivize or fabricate feedback.
Navasota and All of Grimes County
Technicians run Highway 6 south from College Station daily and also serve Anderson, Shiro, Richards, Roans Prairie, and Plantersville.
What We Do
Plumbing Services We Provide in Navasota
Plumber in Navasota, TX. Call or Request Service.
Office hours Monday to Friday, 7 AM to 5 PM. Licensed plumbers on call 24/7 for plumbing emergencies.
Have a plumbing question? Contact an expert.