Review the symptoms
Warm floors, moisture, meter activity and unexplained water use can help guide the investigation.
Martinez plumbing services
Slab Leak Repair
in Martinez, CA
Slab leak repair for hidden water leaks beneath or within the concrete foundation of your home.
Serving Martinez and surrounding communities. Tell our team about the problem or project at your home.
When to get help
Is this the service your home needs?
- You notice unexplained warm or damp areas on the floor
- Your water bill increases without a clear reason
- You hear running water when fixtures are turned off
- Moisture or damage appears near flooring or baseboards
Our approach
Slab Leak Repair for your Martinez property.
We evaluate the symptoms, perform leak detection as needed and explain the repair options based on the location of the leak, access conditions and the condition of the piping.
Describe the issue and any previous work when arranging your appointment. We explain the findings and proposed scope so you can make an informed decision.
Locate before repairing
Build the slab-leak repair around the source.
Locate the leak
Leak detection helps narrow down the affected piping before repair access is planned.
Review repair options
We discuss access, pipe condition and whether a localized repair or another piping solution makes sense.
Current offers
Slab Leak Repair promotions in Martinez
5% Senior Discount — Ages 65 & Older
5% off
At In Demand Plumbing, Heating & Air, we appreciate our senior community! Customers aged 65 and older receive 5% off their entire plumbing, heating, or air conditioning job, including labor, materials, and equipment. From everyday repairs to complete system installations, we're proud to help seniors save on home comfort services.
Offer ends: December 31, 2027
View Terms & Conditions
Valid for customers aged 65 or older. Discount applies to the entire job invoice, including labor, materials, and equipment. Proof of age may be required. Cannot be combined with any other offers, coupons, promotions, or discounts.
5% Military Discount
5% off
In Demand Plumbing, Heating & Air proudly offers a 5% military discount to active-duty military members and veterans as a thank-you for their service. Save 5% on your entire plumbing, heating, or air conditioning job, including labor, materials, and equipment.
Offer ends: December 31, 2027
View Terms & Conditions
Valid for active-duty military members and veterans. Discount applies to the entire job invoice, including labor, materials, and equipment. Proof of military service or veteran status may be required. Cannot be combined with any other offers, coupons, promotions, or discounts.
We install it. We stand behind it.
The In Demand Comfort Guarantee
Our installation guarantees explain how we stand behind eligible equipment installations and respect your home during the work.
Lifetime Labor Guarantee
We stand behind our craftsmanship for the life of the equipment we install.
Comfort Guarantee
If you’re not comfortable with the performance of your new system, we’ll make it right.
No-Surprise Installation Guarantee
The price we agree on is the price you pay. No surprise labor charges.
Property Protection Guarantee
We respect your home like it’s our own. We protect your property and clean our work area when we’re finished.
Installation Quality Guarantee
Done right. Tested right. Explained right. Every system is installed to code, started, tested and walked through with you.
Lifetime Labor Guarantee requirements: Equipment must be installed by In Demand Plumbing, Heating & Air; the Home Protection Plan must remain active without interruption; and required maintenance must be completed as scheduled. Guarantees apply to eligible work and are subject to their full terms.
Read the complete Comfort Guarantee terms →Home protection plans
Maintenance Plans for Year-Round Comfort
Explore ongoing maintenance and member benefits for your home. Choose the coverage that fits your needs.
HVAC Maintenance Plan
$14.95/month
- Two annual visits: heating and cooling
- Standard filter and condenser coil cleaning
- 48-hour priority service
- 10% off repair parts
- 5% off equipment and indoor air quality products
HVAC + Plumbing Maintenance Plan
$24.95/month
- All HVAC Maintenance Plan benefits
- Annual plumbing inspection
- Water quality test
- Tank water heater flush
- Camera inspection of the accessible main line
Plan benefits and services are subject to the applicable membership terms. The Comfort Guarantee and maintenance plan eligibility are not identical.
Your questions
Slab Leak Repair questions.
How do you know if a leak is under the slab?
Slab leaks can cause symptoms such as warm flooring, unexplained water use, moisture or the sound of running water. Leak detection can help narrow down the source before repair work begins.
Does every slab leak require opening the floor?
Not necessarily. The repair method depends on the leak location, piping layout, access and overall condition of the plumbing system. We explain the practical options after the problem is located.
What are common signs of a slab leak?
Warm or damp flooring, unexplained water use, meter movement and moisture near floors or baseboards can be warning signs.
Does every slab leak require breaking concrete?
No. The repair approach depends on the leak location, piping layout, access and condition of the plumbing.
Can a slab leak increase my water bill?
Yes. A hidden supply leak can cause continuous water loss even when fixtures are not being used.
Should the leak be located before repair begins?
Yes. Narrowing down the likely source helps determine the appropriate repair access and scope.
Do you serve homes outside Martinez?
Yes. Explore our service areas or contact our team about your property address.
Related services
More Martinez plumbing services.
Customer voices
Reviews from our Concord location
On Google
★★★★★
Excellent job by In Demand Plumbing! Daniel assessed the situation, gave a fair quote and completed the work on the spot! Went above and beyond to get the job done. Very knowledgeable. Will definitely use again!
On Google
★★★★★
My water heater died late last night. Matt Hartman was able to respond very quickly. He was thorough, professional, explained everything before starting and made sure I understood the process. The job included the pick up & delivery of the new water heater while he worked on the removal. So…
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My water heater died late last night. Matt Hartman was able to respond very quickly. He was thorough, professional, explained everything before starting and made sure I understood the process. The job included the pick up & delivery of the new water heater while he worked on the removal. So efficient and excellent service. Thank you!
On Google
★★★★★
Matt was very communicative and kept us informed as to what he needed to do. In Demand was reasonable in their pricing...they dug a new trench & laid new PVC from the water meter to the house.
On Google
★★★★★
I call In Demand whenever I have plumbing issues or needs. Every technician who has done work and installations for me is professional, knowledgeable, courteous and friendly. I especially appreciate that they wear booties, that they respect my home then clean up and leave my home as neat and tidy…
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I call In Demand whenever I have plumbing issues or needs. Every technician who has done work and installations for me is professional, knowledgeable, courteous and friendly. I especially appreciate that they wear booties, that they respect my home then clean up and leave my home as neat and tidy as it was when they started working. Thank you to Elijah for finding and ordering the bathroom sink faucet I wanted then coming back to replace my old one when it arrived. Their 24 hour service number is terrific so you can call anytime and talk to a real, live person to make an appointment. Ben did an excellent job scheduling my appointments and communicating with me once my faucet had been delivered then Elijah came to install it the following day. I don't like when plumbing problems arise, but I like and appreciate knowing I can count on In Demand in Antioch when needed!
On Google
★★★★★
We’ve hired In-Demand Plumbing on three separate occasions in the last 30 days. The jobs varied from replacement of toilets... to installation of a new water conditioner... and replacement of a garbage disposal. In each case, the assigned technicians were personable, professional, efficient, and…
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We’ve hired In-Demand Plumbing on three separate occasions in the last 30 days. The jobs varied from replacement of toilets... to installation of a new water conditioner... and replacement of a garbage disposal. In each case, the assigned technicians were personable, professional, efficient, and effective. In-Demand Plumbing has become our go-to source for addressing our plumbing concerns.
On Google
★★★★★
As usual In Demand gave the best service, Don came exactly when the arrival window time started (2-5). Arrived promptly at 2. I once again clogged the drain and he was able to fix it quickly and showed me the issue and how it was all cleared. He told me if we have further issues they will come…
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As usual In Demand gave the best service, Don came exactly when the arrival window time started (2-5). Arrived promptly at 2. I once again clogged the drain and he was able to fix it quickly and showed me the issue and how it was all cleared. He told me if we have further issues they will come back (I should just stop putting food down the drain). As always 10/10 service and he was so good with my puppy who insisted she helped 😂
Awards & recognition
Recognized in Martinez and across the East Bay.
Awards, accreditation and community recognition earned by In Demand Plumbing, Heating & Air.
Nextdoor Neighborhood Fave 2025
Nextdoor
In Demand Plumbing, Heating & Air was recognized as a 2025 Nextdoor Neighborhood Fave.
BBB Accredited Business – A+ Rating
Better Business Bureau
In Demand Plumbing, Heating & Air is a BBB Accredited Business with an A+ rating.
Talk to our team
Get help with slab leak repair.
Schedule slab leak repair for your Martinez property or call our team about the problem.