When the line running from the curb stop to your house is failing (corroded galvanized, undersized, pinhole-leaking copper, or just old enough that it’s earned retirement), full water main replacement is usually the right call. Wahl replaces the entire service line, curb to house, in copper or HDPE, with all the permits, inspections, and restoration handled in-house.

When full replacement is the right answer

• Visible leak in the yard running along the service line path.
• Sudden or unexplained drop in whole-house water pressure.
• High water bill with no fixture leak you can find.
• Discolored or rusty water at every fixture, not just one.
• Old galvanized steel service line. Most galvanized lines we pull are heavily restricted by internal scale, often to a small fraction of their original diameter.
• Pinhole leaks in 1950s/1960s copper. Sometimes spot-repairable. Often, by the time we see the first pinhole, others are coming.
• Undersized line that can’t keep up with modern fixture demand.
• Polybutylene (gray plastic, 1980s) that’s failing.
• You’re combining the work with sewer replacement or a major renovation where the trench is already going to be open.

What we install

Two material choices, each suited to specific scenarios:

Copper Type K

The traditional gold standard for water service.

• 75 to 100 year life expectancy installed correctly.
• Code-compliant in every Pittsburgh municipality.
• Standard plumbing repair tools work on it.
• Slightly more expensive than HDPE per foot.

We recommend copper when: – The customer wants the longest-life option. – The municipality requires copper. – The run is short (cost premium is smaller). – The customer’s interior plumbing is already copper and a uniform system makes sense.

HDPE (High-Density Polyethylene)

Modern flexible polyethylene approved for water service.

• 75-plus year service life.
• Excellent corrosion resistance.
• Approved for water service in every PA municipality we serve.
• Lower material cost than copper.
• Can be installed trenchless using directional drilling or pipe-bursting.

We recommend HDPE when: – The customer wants trenchless installation. – The run is long (cost difference adds up). – The soil conditions are corrosive (HDPE handles them better than copper). – Speed of install matters (HDPE goes in faster than copper).

Either material is a major upgrade over lead, galvanized, or undersized lines.

Pipe sizing

Most older Pittsburgh homes were built with 1/2 inch or 5/8 inch service lines. Modern plumbing standards typically size service lines based on fixture count and demand:

• Small homes, modest fixture count: 3/4 inch service.
• Standard residential, full bath plus half bath, dishwasher, washer: 1 inch service.
• Larger homes, multiple full baths, high-demand fixtures (rain showers, body sprays, multiple-head showers, pool fills, irrigation): 1 1/4 inch or 1 1/2 inch service.

Going from 1/2 inch galvanized to 1 inch copper or HDPE is the most common upgrade we do, and the difference in pressure and flow is immediately obvious to homeowners.

The full replacement process

1. Walk the route. Designer walks the line from curb to house, identifies obstacles (driveway, sidewalk, fences, landscaping, trees), and recommends open-cut or trenchless.
2. Locate. Existing line marked on the surface.
3. Permits. PWSA in the city, individual municipality elsewhere.
4. PA One Call (811). All utilities marked. Gas, electric, sewer, communications.
5. Schedule water shutoff at the curb stop with the municipality or PWSA.
6. Excavation or directional drilling. Trench from curb to house, or two pits with directional bore between.
7. Run the new service line. Connection at the curb side fitting, line through the ground at proper depth (typically 4 to 6 feet to be below frost), entry into the house wall.
8. New shutoff valve inside the house. Updated to current code; old shutoffs are often seized or undersized.
9. Pressure test. New line pressurized and held to verify no leaks.
10. Disinfection. Chlorinated water flushed through the new line, sample taken for water quality verification (this is municipal code in most jurisdictions).
11. Inspection. Municipal or PWSA inspector signs off.
12. Backfill and surface restoration per the tier you select.

Most full replacements complete in one to three days.

Pricing

We present exact pricing in your home after a free in-home estimate. Tiers below show relative investment, not real numbers.

• Short run (under 50 ft), grass surface: mid tier ($$$).
• Standard run (50 to 100 ft), mixed surface (grass and sidewalk): upper-mid tier ($$$).
• Long run or significant hardscape: upper tier ($$$$).
• Trenchless directional drill (longer or hardscape-protected runs): upper to flagship tier ($$$$).
• Combined replacement with sewer or other underground work: discounted because the trench is already open.

Part of our process is presenting numbers in person, on paper, with the material choice (copper or HDPE), the restoration tier, the warranty, and the permit cost spelled out.

Pittsburgh-specific factors

Steep yards. Pittsburgh terrain affects depth and accessibility. We’ve installed service lines on lots where the elevation change from curb to house is 30 feet. We size machinery and access plans accordingly.

Older sidewalks and curb cuts. Many Pittsburgh sidewalks were poured 70 to 100 years ago. Cutting and restoring them is straightforward; matching them perfectly is harder. We’re honest about what restoration will look like.

Tight access lots. Some urban row houses and older neighborhoods don’t have machine access for traditional excavation. Trenchless directional drilling solves this.

Mature landscaping. A 60-year-old maple over the service line is a strong argument for trenchless.

Coordinating with the water authority’s lead replacement schedule. If your water authority (PWSA in the city, others in surrounding municipalities) is scheduled to replace the public-side line on your block, sometimes we can synchronize private-side replacement on the same dig for cost efficiency. Call your water authority directly for current scheduling and any cost-share or assistance programs they’re running.

What’s included with every Wahl water main replacement

• Material (copper or HDPE) per code.
• All excavation or directional drilling.
• Curb-side connection.
• New entry point at the house with code-compliant shutoff valve.
• Pressure test.
• Disinfection and water quality verification.
• Permit and inspection coordination.
• Photo documentation.
• Surface restoration per the tier you select.
• Written workmanship warranty plus material manufacturer warranty.

Financing

Most service line replacements are unexpected investments. GoodLeap, Synchrony, Wells Fargo, EasyPay. Approval in about two minutes. Monthly payment options walked through before you commit.