Cost to Replace Anode Rod – What You Need to Know

Wondering what you’ll pay to swap out an anode rod? You’re not alone. A broken anode can let your water heater rust faster, so fixing it sooner saves money in the long run. Below we break down the price range, what makes it go up or down, and when it makes sense to do it yourself.

What is an anode rod?

An anode rod is a metal stick inside the tank of a water heater. It’s usually made of magnesium, aluminum, or a zinc‑aluminum mix. Its job is simple: it attracts corrosive particles so the tank itself stays clean. Over time the rod wears out and needs replacement, otherwise the tank can start leaking.

Factors that affect replacement cost

1. Material of the rod – Magnesium rods are the cheapest (around £10‑£15), aluminum is a bit pricier (£15‑£20), and the zinc‑aluminum blend can cost £20‑£30. Choose the material that matches your water type; hard water often needs a magnesium rod.

2. Size of your heater – Standard 40‑gal units use a 2‑foot rod, while larger 80‑gal tanks need a longer 4‑foot rod. Bigger rods add £5‑£10 to the part cost.

3. Labor rates – Plumbers in Weymouth charge anywhere from £40 to £80 per hour. Most jobs take 30‑45 minutes, so labor usually falls between £30 and £60.

4. Location and travel fees – If the service call is far from the technician’s base, a travel surcharge of £10‑£20 may apply.

Putting it together, a typical replacement runs between £60 and £120 total. You’ll pay less if you buy the rod yourself and only need a quick fix from a pro.

DIY option – If you’re comfortable with a wrench, you can replace the rod for about £15‑£30 in parts. The steps are straightforward: turn off gas/electric, drain a few gallons, unscrew the old rod, screw in the new one, refill, and restore power. Many homeowners find it easy and save the labor cost.

When to call a professional – If you’re not sure how to shut off the heater, if the tank is leaking, or if you spot corrosion on the tank walls, call a qualified repairer. A pro can also inspect the sacrificial rod’s material suitability for your water supply.

Remember to schedule the swap every 3‑5 years for soft water, or every 1‑2 years for hard water. Regular checks keep the heater efficient and can cut your energy bill by up to 10%.

Ready to replace your anode rod? Start by grabbing the right size and material, then decide whether you’ll DIY or call Weymouth Appliance Repair Services. Either way, you’ll protect your water heater and avoid costly tank replacements down the road.