Best Plumbing in Irving, TX — 17 Vetted Contractors

Yes. Per the City of Irving Development Services Department, a plumbing permit is required for water heater replacements. Your licensed plumber should pull this permit before starting work — it's typically a straightforward process and the cost is usually included in the installation quote. Don't let a contractor skip this step; unpermitted water heater installations can create issues with homeowner's insurance claims and home sales.

The most reliable early indicator is an unexplained increase in your Irving Water Utilities bill — even a 10–15% spike with no change in usage habits warrants investigation. Other signs: warm or hot spots on tile or hardwood floors (hot water line leak), the sound of running water when all fixtures are off, sudden drops in water pressure, or new cracks in interior drywall or flooring. Irving's clay soil amplifies slab movement, so these symptoms are more common here than in cities built on more stable ground.

Go to tsbpe.texas.gov and use the license lookup tool. You can search by individual name, company name, or license number. Confirm the license type (Journeyman or Master Plumber), that it's currently active, and that there are no disciplinary actions on record. Per the Texas State Board of Plumbing Examiners, all plumbing work for compensation in Texas requires a valid TSBPE license — this is a non-negotiable baseline, not a nice-to-have.

It depends heavily on the repair method. Electronic/acoustic detection runs $300–$600. If the leak can be rerouted through walls or the attic (common for supply lines), repair typically runs $1,500–$4,000. If tunneling under the slab is required, costs can reach $5,000–$10,000 or more depending on pipe length and access. Get at least two quotes and ask each plumber to explain why they're recommending their specific repair approach — the right method depends on the leak location and your pipe material.

Yes — many Irving homes built between the late 1970s and mid-1990s still have polybutylene (poly-b) pipe, identifiable by its gray color. Poly-b is known to degrade from the inside out due to reactions with chlorinated water, and failures can be sudden and severe. Most plumbing professionals and home inspectors recommend proactive replacement. A full repipe of a typical Irving home runs $4,000–$9,000 depending on size and material (PEX is the current standard). Check your homeowner's insurance policy — some carriers have exclusions or surcharges for poly-b.

Expect higher demand and longer wait times June through August. Standard rates don't typically change seasonally, but after-hours and emergency call premiums (25–50% above standard) are more likely to apply because plumbers are busier and dispatching crews at odd hours more frequently. For non-urgent work, booking 5–7 days out is realistic in peak summer. If you have a true emergency (active leak, no water service), 24/7 response is available from most licensed Irving plumbers — just expect the premium.

It depends on your policy. Most standard homeowner's policies cover sudden and accidental water damage from a slab leak but exclude the cost of repairing the pipe itself. Some policies also exclude damage caused by 'earth movement' — which is how some insurers classify clay soil shifting. Review your policy's water damage and earth movement exclusions carefully, and document the leak with photos and a written plumber's report before filing any claim. An independent public adjuster can help if your insurer disputes the cause.

For any job over $500, ask: (1) Can you show me your active TSBPE license? (2) Will you pull the required permits with the City of Irving? (3) Can you provide a certificate of liability insurance and workers' comp? (4) Is the quote written with itemized labor and materials? (5) What's your warranty on parts and labor? Legitimate plumbers answer all five without hesitation. Evasion on any of these — especially permits and insurance — is a reason to keep looking.