Best Plumbing in Garland, TX — 21 Vetted Contractors

Yes. Per the City of Garland Building Inspection Division, a plumbing permit is required for water heater replacements. The licensed Master Plumber you hire is required under Texas law to pull the permit — not you. The city will schedule an inspection after installation. This is non-negotiable: an unpermitted water heater replacement can create problems when you sell the home and may affect your homeowner's insurance coverage if something goes wrong.

The most reliable early signs in a Garland home are: a water bill that's suddenly 20–40% higher with no change in usage, warm or hot spots on your floor (especially on a concrete slab), the sound of running water when all fixtures are off, or unexplained wet areas near baseboards. Garland's clay soil movement makes slab leaks more common here than in many other markets. If you suspect one, call a plumber for electronic leak detection ($150–$350) before doing anything else — it will tell you exactly where the leak is and help you choose the right repair approach.

Go to tsbpe.texas.gov and use the license lookup tool. Enter the contractor's name or license number. You're looking for an active Master Plumber license for the business owner, and active Journeyman licenses for anyone doing hands-on work. Per the Texas State Board of Plumbing Examiners, it is illegal to perform plumbing work for compensation in Texas without a valid TSBPE license. This takes about 60 seconds and is worth doing every time.

Not necessarily right away, but you should have a plumber assess the condition of your supply lines. Homes from that era in Garland typically have galvanized steel supply pipes, which corrode internally over decades. Signs that repipe is becoming necessary: reduced water pressure, rust-colored water when you first run a tap, or recurring pinhole leaks. A full repipe to PEX in a 1,500 sq ft Garland home typically runs $4,000–$9,000. If you've had two or more pinhole repairs in the past few years, the math usually favors repiping over continued patching.

Most Garland-area plumbers charge a diagnostic or service call fee of $75–$150, which covers showing up and diagnosing the problem. Many will waive or credit this fee toward the repair if you proceed with the work. Be wary of contractors who advertise 'free estimates' for service calls — that fee structure often means the diagnostic cost is baked into inflated repair quotes. Get the service call fee confirmed in writing before they arrive.

Yes. The City of Garland, consistent with Texas Commission on Environmental Quality (TCEQ) requirements, requires a backflow prevention device on all irrigation systems connected to the potable water supply. Annual testing by a licensed backflow tester is required, and test reports must be submitted to the city. If you're activating your irrigation system for the spring season and haven't had your backflow preventer tested recently, schedule that before running the system — a failed device can contaminate your home's water supply.

Based on typical turnaround at the City of Garland Building Inspection Division, residential plumbing inspections are generally scheduled within 2–5 business days of request during normal periods. During high-demand periods — like the weeks following a major storm or freeze event — that can stretch to 7–10 business days. Your plumber should be managing the inspection scheduling as part of the permitted job; if they're asking you to handle it, that's unusual and worth clarifying upfront.

Strongly recommended for any Garland home built before 1990. Older homes in this area commonly have cast-iron drain lines that corrode over time, and Garland's mature tree canopy means root intrusion into sewer laterals is a recurring issue. A camera inspection runs $150–$350 and can reveal cracks, root intrusion, or partial blockages that a standard home inspection won't catch. If you find a problem before closing, you have negotiating leverage. If you find it six months after closing, it's your problem entirely.