Mercer Plumbing & Drain home(508) 460-7100

Water heaters

No hot water? We replace it fast.

Tank or tankless. One flat price, hauled the old one away, quoted before we start.

Straight pricing

What a water heater costs.

  • 40–50 gal tank, like-for-like

    New unit, install, haul-away.

    $1,650–$2,400
  • Tankless conversion

    Unit, gas and venting changes, install.

    $2,800–$3,200
  • Same-day emergency swap

    No hot water today — we prioritize it.

    Flat, quoted on call

Price includes the unit, install, and haul-away. Tankless conversions vary with gas line and venting — quoted on site before any work.

How it goes

Four steps. No games.

  1. Call

    Live person, 24 hours. No phone tree.

  2. We quote

    Flat rate before we start.

  3. You approve

    No pressure. The price is the price.

  4. We fix it

    Installed, tested, old unit hauled away.

What you get

Every replacement includes:

  • Flat-rate price before we start
  • New unit sized to your home
  • Old unit hauled away
  • Permit pulled where required
  • A test cycle before we leave

Questions

Water heater questions.

Tank or tankless?

Depends on your gas line, venting, and how much hot water you use. We'll tell you straight which is worth it for your house.

Can you replace it today?

Most standard tanks, yes. Call — we carry common sizes on the truck.

Is haul-away extra?

No. The old unit goes in the price.

Reviews

What customers say

  • Called at 11pm with water coming through the ceiling. Dave picked up, gave me a price, truck was there in 40 minutes.

    Rob D. Hudson June 2026
  • Flat rate, no surprises. The number he said on the phone was the number on the invoice.

    Priya S. Marlborough May 2026
  • Cleared a main line another company wanted $1,200 to dig up. Mercer jetted it for a few hundred.

    Mike T. Northborough May 2026

No hot water?

We replace water heaters same day.

Live phone, flat rate, usually same day.

(508) 460-7100 Book a window