
A faulty main shut-off valve can leak, corrode, and even prevent emergency isolation of your home’s water supply. Knowing the true water valve replacement cost helps homeowners budget and allows contractors to quote confidently. CountBricks combines real-time material pricing, regional labor rates, and AI-powered takeoffs to produce accurate figures in seconds, eliminating the guesswork traditionally tied to plumbing repairs.
• Valve type: ball, gate, or pressure-reducing options each carry different price points.
• Pipe material: copper, PEX, or galvanized steel affects fittings and labor methods.
• Accessibility: finished basements, tight crawlspaces, or slab penetrations increase labor hours.
• Permit requirements: many municipalities require inspection for main shut-off modifications.
• Emergency premiums: after-hours calls often raise hourly rates by 25-50 %.
Using nationwide residential projects logged in CountBricks.com/portfolio, the typical homeowner sees a total between $285 and $760. The median is $465, assuming a ¾-inch ball valve, copper pipe, and no finish repairs. Prices trend lower in regions with flexible PEX piping and higher where soldering and drywall patching are common.
1. Materials – $45 – $180
2. Standard labor – $160 – $420 (2-4 hours, licensed plumber)
3. Permits and inspection – $20 – $85 (city dependent)
4. Surface restoration – $60 – $150 (drywall, paint, or tile)
• AI blueprint takeoffs pinpoint pipe location, length, and diameter before a visit.
• Voice-to-estimate lets the plumber dictate site notes; CountBricks instantly prices them.
• Integrated supplier feeds adjust copper and PEX pricing daily so your quote reflects reality, not last month’s flyer.
Changing a shut-off valve looks straightforward on a video tutorial, yet a single soldering error can flood a finished basement. Homeowners often omit indirect costs such as tool rental, time, and risk of code violations. CountBricks-tracked repairs show that DIY attempts ending in a professional rescue average 47 % higher than calling a pro first.
• A slow drip at 60 psi wastes up to 250 gallons per month, adding utility charges.
• Insurance claims from burst valves regularly exceed $7,000 in water damage.
• Valves stuck in the open position void manufacturer warranties on some appliances.
In Dallas, where hard water accelerates corrosion, CountBricks estimates lean toward the upper third of national averages. In Portland, abundant PEX retrofits keep costs lower. By pulling local SKU pricing from partner suppliers, CountBricks automatically adjusts your estimate to the zip code, ensuring transparency for the homeowner and protection for the contractor’s margin.
• Schedule during normal business hours to avoid emergency upcharges.
• Combine the valve swap with other plumbing work; mobilization makes up 10-15 % of total cost.
• Opt for a full-port brass ball valve—slightly pricier but less likely to seize, lowering lifetime cost.
• Verify that the shut-off meets current code; replacing it once prevents future rework.
• Use CountBricks.com/services to generate a side-by-side comparison of materials before approving.
CountBricks eliminates the friction between field and office. A licensed plumber can finish the job, speak the final measurements into a phone, and email a professional invoice before leaving the driveway. Because every line item traces back to live pricing, profits stay predictable even when copper spikes overnight.
1. Upload the home’s existing plans or snap a picture of the valve location.
2. Use voice to describe condition, pipe size, and accessibility.
3. CountBricks AI populates tasks, materials, and labor hours, referencing local code.
4. Review markup suggestions and send the branded quote directly from the platform.
5. Convert the accepted quote into an invoice with one tap.
A new main shut-off isn’t glamorous, yet it safeguards flooring, drywall, and heirlooms from catastrophic leaks. CountBricks financial models show that on average, a $500 valve replacement saves up to $1,950 in potential water damage over five years. When paired with smart leak sensors, the risk reduction climbs even higher.
• Remodels relocating the kitchen or laundry should upsize the valve to 1 inch for future capacity.
• Homes adding fire sprinklers may require a pressure-reducing valve to meet code.
• High-end builds often specify stainless steel ball valves for corrosion resistance.
Whether you are a homeowner seeking clarity or a plumbing subcontractor bidding a tight timeline, CountBricks delivers the precise water valve replacement cost you need. Start a free project file today at CountBricks.com/consultation and experience estimates that speak your language.

A Dallas homeowner recently contacted CountBricks after discovering a corroded gate valve that would not close. Using the CountBricks mobile app, the plumbing contractor uploaded a photo of the valve and narrated site conditions.
• ¾-inch copper supply line inside a finished wall
• Limited access due to built-in shelving
• City inspection required within 24 hours
1. Materials: full-port brass ball valve, copper couplings, flux, solder — $74.22 pulled from live supplier feeds
2. Labor: 3.2 hours at the regional rate of $98/hr — $313.60
3. Permit fee: $55 per Dallas code
4. Drywall repair allowance: $85
Total projected water valve replacement cost: $527.82
The homeowner approved the quote instantly via the CountBricks client portal. Final invoice matched the estimate within $4, attributed to a minor parking fee. Because project data synced to the contractor’s accounting software, administrative time dropped by 60 %. Most importantly, the new valve passed pressure testing, and the homeowner avoided a potential slab leak during Texas’ freeze season.
• Accurate, transparent pricing prevents awkward callbacks and unpaid extras.
• Voice-driven data capture keeps plumbers on task instead of typing on a tablet.
• Real-time material feeds protect profits when commodity prices swing.
Join the growing network of residential professionals who trust CountBricks estimates to win bids, secure margins, and deliver peace of mind to homeowners. Book your demo at CountBricks.com/consultation.