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Weil-McLain boiler with indirect hot water storage

New Boiler Installation

Boiler Installation in Barnstable, MA

Thinking about boiler installation in Barnstable, MA? Blue Pacific Cape Cod puts in new boilers in every village, from Hyannis and Cotuit to Osterville and Barnstable Village. We size the boiler to your house, plan the venting and piping before install day, and put the whole job in a free written quote.

  • Free written quotes
  • Sized by heat loss
  • 1,600+ completed jobs

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(508) 274-9939

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Blue Pacific Cape Cod installs new boilers throughout the Town of Barnstable, MA, including all seven villages. Each job includes sizing from the home’s heat loss, the boiler, venting, near-boiler piping, controls, startup and testing. Options include high-efficiency condensing boilers, indirect water heaters, radiant floor manifolds and oil to gas or propane conversions. Free quotes at (508) 274-9939.

Since 2001

Serving Falmouth and the Cape

1,600+

Jobs completed

5.0 ★

83 Google reviews

#2

Plumber in East Falmouth (BusinessRate, Aug 2026)

Planning a Boiler Installation in Barnstable

A new boiler heats your house for a long time, so the planning matters more than the name on the cabinet. Before pricing anything, we look at how the house is heated now (baseboard, cast iron radiators, radiant floors or a mix), how many zones it has, how hot water is made, which fuel reaches your street and where a new vent can go.

Then it goes in writing. Your quote lists the boiler, venting, piping, controls, any hot water equipment and removal of the old unit, so you can compare bids line by line. If the boiler you have just needs work, see our page on boiler repair and maintenance in Falmouth, where we’re based.

Rinnai tankless water heater and U.S. Boiler K2 gas boiler with zone valves, installed by Blue Pacific

Condensing Boiler or Conventional Cast Iron?

Both are good boilers when they match the house.

High-efficiency condensing

  • Adjusts its flame to match the heat the house needs
  • Vents through plastic pipe out a side wall or roof
  • Wall-hung models free up basement space
  • Runs on natural gas or propane
  • Needs a condensate drain and yearly cleaning

Conventional cast iron

  • Simple, durable design with fewer electronics
  • Available for oil, gas or propane
  • Usually vents into a lined chimney
  • More forgiving of old piping and dirty system water

Lots of radiators or radiant floors favor a condensing boiler. Homes staying on oil, or with limited baseboard, often do better with a well-sized cast iron boiler.

Sizing Comes Before Choosing a Model

Many older boilers are far bigger than the houses they heat, often because they were sized by copying the old nameplate before the house got new windows or insulation. An oversized boiler fires in short bursts, wastes fuel and wears out its ignition parts sooner.

We size from a room-by-room heat loss calculation instead. A breezy waterfront house in Osterville or Cotuit loses heat differently than a sheltered ranch in Marstons Mills, and the numbers show it. Radiation counts too. Cast iron radiators do well with cooler water, while short runs of baseboard may need it hotter, which changes how often a condensing boiler actually condenses.

High-efficiency boiler with copper piping and controls

Add-Ons to Settle Before Install Day

These are easiest to decide while the old boiler is coming out anyway.

Indirect water heater

An insulated tank the boiler heats through its own zone. It keeps up with big households and several bathrooms and lets you retire an old tankless coil. Our water heater services in Barnstable cover standalone options too.

Radiant floor manifolds

Radiant floors run on cooler water than baseboard, so they need a mixing valve or a low-temperature boiler, plus a manifold that balances each loop. We pipe manifolds for new floors, additions and remodels.

Zoning and outdoor reset

A new install is the time to split one big zone into two or three and add an outdoor sensor. With outdoor reset, the boiler sends cooler water on mild days and hotter water when it’s bitter out.

Neighbors who called us

★★★★★

NICK SAVOY AND HIS TEAM ARE THE BEST! ALWAYS PROMPT IN RESPONDING TO CALLS, TEXTS AND THEIR SERVICE IS PHENOMENAL. TOP NOTCH AND WOULD HIGHLY RECOMMEND USING BLUE PACIFIC.

Pamela EddlestonGoogle
★★★★★

Blue Pacific Plumbing did an excellent job! Great pricing, prompt service, and quality work. Highly recommend them to anyone looking for a reliable plumber!

Dylan RGoogle
★★★★★

Nick is awesome; knowledgeable, prompt, and personable.

Tom TGoogle

Rated 5.0 out of 5 from 83 reviews on Google. Read them on Google

Oil to Gas or Propane Conversions in Barnstable

Plenty of Barnstable homes still burn oil, and a new boiler is the natural time to ask about switching. Natural gas runs along many streets in Hyannis and the other villages, but not all of them, so step one is confirming service at your address. Where gas doesn’t reach, propane from an outdoor tank fuels the same high-efficiency equipment.

A conversion also takes a gas line from the meter or tank (part of our gas line installation work), new venting, and a decision on what happens to the old oil tank. Some owners skip the fuel question and pair a smaller boiler with heat pump installation in Barnstable.

On the older homes along Route 6A, we try to keep a new vent off the street-facing walls and show you the options before anything gets drilled. For other plumbing in any village, visit our Barnstable plumbers page.

Boiler Installation Day, Step by Step

Conversions add a few steps, which your quote spells out.

1

Protect and remove

We cover the floors along the path to the basement, shut off fuel, power and water, and drain the system. The old boiler comes out, usually along with its circulators, controls and expansion tank.

2

Set, pipe and vent

The new boiler is set level, piped to supply and return, and vented properly. Massachusetts requires a hard-wired carbon monoxide detector and a vent sign when a gas boiler’s sidewall vent ends under seven feet above grade.

3

Wire, fill and purge

We wire the zones and thermostats, fill the system and purge air from every loop until the water runs quiet.

4

Fire, test and walk through

We fire the boiler, check combustion and the safety controls, and run every zone. Then we show you the new controls, shutoffs and yearly maintenance needs.

Boiler installation in Barnstable: common questions

Still not sure? Call (508) 274-9939 and talk it through with someone who does this every day.

How do you decide what size boiler my Barnstable home needs?

We base it on a room-by-room heat loss calculation, not the size of the old boiler. Insulation, windows, ceiling height, wind exposure and the radiation in each room all factor in. A right-sized boiler runs longer, steadier cycles, which is easier on both the equipment and your fuel bill.

Are there Mass Save rebates for a new boiler in 2026?

For most households, no. Mass Save sponsors have ended standard rebates on gas, oil and propane heating equipment, though income-eligible customers may still qualify for help upgrading a fossil fuel system. Heat pumps still qualify, and we can point you to those rebates and help with the paperwork.

Will a high-efficiency boiler still use my chimney?

Usually not. Condensing boilers vent through plastic pipe out a side wall or the roof, because their exhaust is too cool and wet for a masonry chimney. If a water heater stays on the chimney, it may need a properly sized liner. We pick the vent spot away from windows, doors and drifting snow.

Can a new boiler make my hot water too?

Yes. The usual setup is an indirect water heater, a separate insulated tank the boiler heats through its own zone, which suits big households and several bathrooms. Smaller homes sometimes use a combi boiler that heats water on demand. The right choice depends on how many people and bathrooms you have.

Do you install boilers in Hyannis, Osterville and Cotuit?

Yes, along with Barnstable Village, West Barnstable, Marstons Mills and Centerville. All seven villages are in our service area. Quotes are free, so call (508) 274-9939 or request a visit through our online booking.

Plan Your New Boiler With a Local Crew

Phone (508) 274-9939 or book a quote visit online. We look at the house first, then hand you options in writing.