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Riveted face of a commercial fire-tube boiler in dramatic side light

The work is the portfolio

Real jobs, real copper, this crew. Every photo below came off our own phones.

Stock photos are the industry's tell. These are our installs: boiler plants and process gas in working facilities, Mitsubishi hyper-heat systems in the sun, and the copper work we'd sign twice.

Rheem commercial water heater during installation in a mechanical closet — Commercial: Rheem commercial water heater during installation in a mechanical closet

Lab sink with dual eyewash faucet, institutional fixture work — Commercial: Lab sink with dual eyewash faucet, institutional fixture work

Commercial boiler room with three oil-fired boilers and copper circulator header — Commercial: Commercial boiler room with three oil-fired boilers and copper circulator header

New black iron gas piping and regulators feeding a stainless processing oven in a food plant — Commercial: New black iron gas piping and regulators feeding a stainless processing oven in a food plant

Process gas and utilities over a packaging line — Commercial: Process gas and utilities over a packaging line

Rooftop mechanical unit with black iron gas piping and conduit run across a commercial roof — Commercial: Rooftop mechanical unit with black iron gas piping and conduit run across a commercial roof

Three-bay and hand sinks plumbed to code in a commercial kitchen build-out — Commercial: Three-bay and hand sinks plumbed to code in a commercial kitchen build-out

Stainless hand sink and equipment stand plumbed against stainless wall panels in a commercial production space — Commercial: Stainless hand sink and equipment stand plumbed against stainless wall panels in a commercial production space

Mill-building steam mains, rehung and pitched — Commercial: Mill-building steam mains, rehung and pitched

Distribution piping across a mill bay — Commercial: Distribution piping across a mill bay

Strut-hung mains tracking the roofline — Commercial: Strut-hung mains tracking the roofline

Bright residential mechanical room with wall-hung boiler, indirect water heater, and copper manifold — Boilers: Bright residential mechanical room with wall-hung boiler, indirect water heater, and copper manifold

Five-boiler bank, stainless venting and full copper near-boiler piping — Boilers: Five-boiler bank, stainless venting and full copper near-boiler piping

Wall-hung high-efficiency boiler with stainless indirect water heater and copper manifold — Boilers: Wall-hung high-efficiency boiler with stainless indirect water heater and copper manifold

Wall-hung high-efficiency boiler with stainless indirect water heater and copper manifold — Boilers: Wall-hung high-efficiency boiler with stainless indirect water heater and copper manifold

Inside a wall-hung gas boiler during service, heat exchanger and controls exposed — Boilers: Inside a wall-hung gas boiler during service, heat exchanger and controls exposed

Wall-hung high-efficiency combi boiler piped in copper beside an indirect water heater tank — Boilers: Wall-hung high-efficiency combi boiler piped in copper beside an indirect water heater tank

Mitsubishi H2i hyper-heat condenser, raised stand and clean line-hide on a seacoast colonial — Heat pumps: Mitsubishi H2i hyper-heat condenser, raised stand and clean line-hide on a seacoast colonial

Mitsubishi heat pump condenser with line-hide trunking on the side of a New England home — Heat pumps: Mitsubishi heat pump condenser with line-hide trunking on the side of a New England home

Mitsubishi H2i condenser on a composite stand beside gray porch steps — Heat pumps: Mitsubishi H2i condenser on a composite stand beside gray porch steps

Mitsubishi H2i condenser on a composite stand beside gray porch steps — Heat pumps: Mitsubishi H2i condenser on a composite stand beside gray porch steps

Mitsubishi hyper-heat condenser installed on a stand beside a backyard deck — Heat pumps: Mitsubishi hyper-heat condenser installed on a stand beside a backyard deck

Mitsubishi Smart Multi hyper-heat condenser, set tight to the house and clear of the garden — Heat pumps: Mitsubishi Smart Multi hyper-heat condenser, set tight to the house and clear of the garden

Mini split serving a backyard studio, condensate run tidy — Heat pumps: Mini split serving a backyard studio, condensate run tidy

Mini split branch box mounted in an attic with insulated refrigerant lines — Heat pumps: Mini split branch box mounted in an attic with insulated refrigerant lines

Ductless head over the bay window, room refinished — Ductless: Ductless head over the bay window, room refinished

One-way ceiling cassette recessed flush, whole-floor comfort with no wall unit in sight — Ductless: One-way ceiling cassette recessed flush, whole-floor comfort with no wall unit in sight

Wall-mounted Mitsubishi mini split head installed high on a bedroom wall — Ductless: Wall-mounted Mitsubishi mini split head installed high on a bedroom wall

Cassette zone in a kid's room, out of reach, out of the way, quiet enough to sleep under — Ductless: Cassette zone in a kid's room, out of reach, out of the way, quiet enough to sleep under

Ceiling cassette flush in a shiplap den, whole-room comfort — Ductless: Ceiling cassette flush in a shiplap den, whole-room comfort

Ceiling cassette recessed over a shiplap bedroom — Ductless: Ceiling cassette recessed over a shiplap bedroom

Two wall-hung tankless water heaters piped side by side in a basement — Water heaters: Two wall-hung tankless water heaters piped side by side in a basement

Navien tankless water heater with copper press piping and PEX supply runs — Water heaters: Navien tankless water heater with copper press piping and PEX supply runs

New electric water heater, copper press connections up top — Water heaters: New electric water heater, copper press connections up top

Copper press piping and space-heating connections above a water heater — Water heaters: Copper press piping and space-heating connections above a water heater

Water heater swap with new flue and copper drops — Water heaters: Water heater swap with new flue and copper drops

Tankless mounted in a brick chase, compact and serviceable — Water heaters: Tankless mounted in a brick chase, compact and serviceable

Tankless water heater mounted on an exposed brick wall with new copper supply lines — Water heaters: Tankless water heater mounted on an exposed brick wall with new copper supply lines

Three Navien tankless water heaters wall mounted with copper supply lines in a stone foundation basement — Water heaters: Three Navien tankless water heaters wall mounted with copper supply lines in a stone foundation basement

New black iron gas piping and PEX supply lines roughed into a framed utility wall — Gas fitting: New black iron gas piping and PEX supply lines roughed into a framed utility wall

Elkay bottle-filling fountain and fixture install — Plumbing: Elkay bottle-filling fountain and fixture install

Labeled air intake and exhaust piping above wall-hung units in a basement ceiling — Plumbing: Labeled air intake and exhaust piping above wall-hung units in a basement ceiling

Under-slab PVC drain and vent piping laid out before a foundation pour — Plumbing: Under-slab PVC drain and vent piping laid out before a foundation pour

The kind of pipe we replace, sediment-choked and done — Plumbing: The kind of pipe we replace, sediment-choked and done

PEX rough-in through new framing during a remodel — Plumbing: PEX rough-in through new framing during a remodel

Labeled air intake and exhaust piping run above wall-hung units in a basement ceiling — Plumbing: Labeled air intake and exhaust piping run above wall-hung units in a basement ceiling

Camera head lighting the line during a sewer inspection — Plumbing: Camera head lighting the line during a sewer inspection

Labeled supply runs beneath an old-house ceiling — Plumbing: Labeled supply runs beneath an old-house ceiling

DWV runs squared through fresh framing — Plumbing: DWV runs squared through fresh framing

Press copper and brass isolation at the tank — Plumbing: Press copper and brass isolation at the tank

JP Karos plumbing work in progress on a residential job — Plumbing: JP Karos plumbing work in progress on a residential job

JP Karos mechanical piping work on a residential system — Plumbing: JP Karos mechanical piping work on a residential system

Copper branch lines run along an old brick foundation — Plumbing: Copper branch lines run along an old brick foundation

Wall head set high in a refinished room, hardwood floors back in — Finish work: Wall head set high in a refinished room, hardwood floors back in

Ceiling-suspended indoor unit floating over a finished bedroom, lines hidden in the attic — Finish work: Ceiling-suspended indoor unit floating over a finished bedroom, lines hidden in the attic

Finished JP Karos mechanical work, the jobs behind the reviews — Finish work: Finished JP Karos mechanical work, the jobs behind the reviews

Finished JP Karos bathroom remodel, new tile and fixtures set and the plumbing behind them done — Finish work: Finished JP Karos bathroom remodel, new tile and fixtures set and the plumbing behind them done

Brass supplies and trap set clean against marble chevron tile — Finish work: Brass supplies and trap set clean against marble chevron tile

James at the fire tubes of a commercial boiler — Crew: James at the fire tubes of a commercial boiler

James Karos giving a thumbs up under the EPA Clean Water Act recognition banner at Bristol Water Works — Crew: James Karos giving a thumbs up under the EPA Clean Water Act recognition banner at Bristol Water Works

James Karos with two partner contractors at a stadium box event — Crew: James Karos with two partner contractors at a stadium box event

Finished bath, green vanity, brass hardware, and the client's proudest helper — Crew: Finished bath, green vanity, brass hardware, and the client's proudest helper

The crew muscling stainless venting into place, mid-install — Crew: The crew muscling stainless venting into place, mid-install

JP Karos crew running stainless vent piping in a commercial boiler room — Crew: JP Karos crew running stainless vent piping in a commercial boiler room

JP Karos technician in branded gear servicing a boiler — Crew: JP Karos technician in branded gear servicing a boiler

JP Karos crew setting under-slab piping inside new commercial foundation walls — Crew: JP Karos crew setting under-slab piping inside new commercial foundation walls

James Karos holding a large gate valve in a commercial mechanical room — Crew: James Karos holding a large gate valve in a commercial mechanical room

Getting the new line through a crawlspace nobody wants — Crew: Getting the new line through a crawlspace nobody wants

JP Karos crew working a residential mechanical install — Crew: JP Karos crew working a residential mechanical install

JP Karos wrapped company van parked at the shop, rear view — Shop: JP Karos wrapped company van parked at the shop, rear view

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That copper could be in your basement next.

Plug in what you have. See the range, the rebate, and the monthly line. Then pick a morning that works.

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3: States licensed
7: Licenses held

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