Water Heater Installation & Replacement
Tank replacements and new installations, sized to how your house actually uses hot water — with the permit pulled, the venting checked and the old unit hauled away.
- Plumbing license
- 1310027098-PL-CMA licensed
- Shop
- 99 Felton StWaltham, MA
- Service call
- Free$89 fee only if you go ahead
- Workmanship
- 5 yearsNo labor charge
- Hours
- 8am–8pmMonday through Friday
When is it time to replace a water heater?
Replace it when the tank itself is failing. Water around the base, rusty hot water, rumbling or popping from sediment, and a unit more than about ten years old are the usual signs. A leaking tank doesn’t get better — plan the replacement before the shell fails.
Call us if you notice:
- Water that isn’t getting hot enough, or is too hot
- Banging or popping noises
- Rust-colored or cloudy hot water
- Leaks around the base of the unit
- A system that’s 10+ years old
- Rising energy or water bills
What does a water heater installation include?
We assess your current system and how your household uses hot water, size the replacement properly, and install it to code — including venting, an expansion tank where required, the permit and the inspection. We haul the old unit away and clean up.
We work with brands including Rheem, Bradford White, Navien and Rinnai.
What moves the price of a replacement?
| What moves the price | Why |
|---|---|
| Tank vs. tankless | Different installation |
| Gas vs. electric | Venting and gas line |
| Capacity needed | Sized to the house |
| Venting condition | Code compliance |
| Expansion tank | Often required |
| Access to the unit | Basement vs. crawlspace |
| Permit and inspection | Required in Massachusetts |
Mass Save rebates may apply to some efficient units, such as heat pump water heaters. We’re a Mass Save Home Performance Contractor, so we’ll tell you if yours qualifies.
What should I tell you when I call?
- What’s happening with the water heater
- Where the unit is located
- How old it is
- Whether it’s gas or electric
- What times work for a visit
5-Year Workmanship Guarantee
We stand behind how we do the work for five years. If something fails because of our installation or repair, we come back and correct it — no labor charge.
Covers Colt's workmanship. Parts carry the manufacturer's warranty. Excludes pre-existing conditions, customer-supplied fixtures, and freeze or misuse damage. Read the full termsCommon questions
How long does a water heater replacement take?
A straightforward tank-for-tank swap is usually a few hours. Switching fuel type, moving the unit, or correcting venting that isn't to code takes longer — we'll tell you which one you're looking at when we quote it.
Do you pull the permit?
Yes. Water heater replacement requires a permit and inspection in Massachusetts, and we handle it.
Should I switch to tankless?
Sometimes. Tankless makes sense for households that run out of hot water, and less sense if your gas line or venting would need major work to support it. We'll give you both numbers rather than steering you.
How much does a new water heater cost?
Nobody can quote a water heater accurately over the phone. The estimate is free. A licensed plumber checks the installation, sizes the replacement and puts a price in writing before anything happens.
Related plumbing services
Water Heater Repair
No hot water, sediment rumble, leaking tanks, thermostat and element faults.
Tankless Water Heaters
Installation, repair and descaling for on-demand systems.
Boiler Repair
Steam and hot water systems — standard equipment in older two-families.
