Middleborough, MA · South Shore & Cape Cod

Heat. Cool. Since 1983.

Heating, cooling, repairs, installations, maintenance and more — for South Shore homes and businesses.

Service 24 hours a day, 7 days a weekOil-to-gas conversionsMass Save & rebate help
The All Phases Mechanical crew standing in front of their service vans
The All Phases Mechanical team
❄ CoolingHeating ☀

Family-run HVAC

All HVAC. Since 1983.

All Phases Mechanical has been providing and servicing heating and air conditioning to South Shore residents and businesses since 1983. We service everything we sell (and those we don’t sell), and all of our service technicians are seasoned veterans with training and experience.

We can install, repair, or upgrade, and we offer annual preventative maintenance (PM) packages for homes and businesses. Our PM packages include changing filters, which is key to maintaining low energy costs.

We’re also happy to assist you with natural gas and Cool Smart rebates & tax credits, can work with your insurance company needs, and provide estimates, quotes and timelines too.

Heating Services

Oil to natural gas and (LP) conversions are our specialty. Today’s home heating systems are over 90% efficient compared to 60%–80% just a decade ago, and a new heating unit can add value to any home or office.

  • Oil furnaces (warm air), oil boilers (steam, water) and hydro air
  • Gas furnaces*, gas boilers and hydro air
  • Water heaters — oil, gas and electric — and radiant systems
  • Geothermal with complete engineering package
  • Ductless split AC and heat pumps

*Two-stage gas valves and Electronically Commutated Motors (ECM).

Air Conditioning Services

Today’s central air conditioning systems are more efficient, more durable, quieter, and improve indoor air quality by dehumidifying and filtering the air. As a best practice, we acoustically line the first few feet of duct and use flexible connectors so your new A/C system is as quiet as possible.

Customers have been particularly happy with the new high-efficiency units with both ECM and variable-speed blower. No job is too big or too small for our team.

We sell, install and service 24 hours a day, 7 days a week.

New Installations

We install new residential and light commercial heating and A/C equipment. Ask about current rebates and Mass Save eligibility on select installs. We don’t sell “boxes” — we design a system for your home, so expect a fair, prompt estimate, usually in your hand before we leave.

Service & Repair

We service and repair all the equipment we sell and install, residential and light commercial, including roof top units (RTUs). New service and install customers are always welcome.

Maintenance Plans

Maintenance agreements bring regular inspections with minor cleaning, preventative maintenance and adjustments, to help your equipment keep performing at its best.

Pools · Commercial · Industrial

Dehumidification Services

We sell and install the Geoflex line of dehumidification systems — residential and commercial, industrial, OEM and specialty, and residential systems for indoor pools.

Heated indoor pools and spa rooms release large amounts of moisture laden with chlorine or bromine. Left uncontrolled it brings mold and mildew, rust, rot, structural damage, wet walls and ceilings, corrosion and electrical failure.

Geoflex systems remove that moisture and discharge warm dry air or cool conditioned dry air — heating, cooling and dehumidifying at once. With a geothermal link, savings of up to 80% in operating costs are possible compared with conventional humidity control or make-up air systems. Geoflex has been building these systems for 20 years.

Pay Online & Prepay

Seasonal tune-ups

Use this to pay your invoice and learn about our prepay services. We never collect your card information on this site — you’re taken to a secure card processing center instead. The online payment link is being updated; contact All Phases to make a payment by phone, email or mail.

508-566-6777 · [email protected]

Oil boiler or oil furnace cleaningPrepay to receive $30 discount
$360
Gas boiler or warm air furnace cleaningPrepay to receive $30 discount
$300
Spring/Summer A/C startup servicePrepay to receive $25 discount
$255

Testimonials

5-star reviews on Google

★★★★★

“I had service today and I was extremely happy with it. My service tech Victor was awesome and very professional I would recommend him”

Margaret Egan · Google review, March 2026
★★★★★

“Dillion went above and beyond putting the furnace in and replacing the rotted pipe. He offered me one of his heaters. Respectful of my home. Very professional.”

Lori Pierce · Google review, March 2026
★★★★★

“As a former GC, All Phases Mechanical checked every box and then some. Estimate & scope were clear, showed up on time, all workers/subs were professional, respectful of the property and worksite. Work area was neat and cleaned each day. It was a flawless conversion/install from an oil FHA furnace to gas.”

Kevin Connelly · Google review, March 2026
★★★★★

“Call company at 5pm, Victor came inspected furnace. Needed new furnace, installed and working by the next evening. Did great job and kept me informed on how it was going.”

Victoria Davidson · Google review, January 2026
★★★★★

“Unfortunately had to call Carl on a Sunday for no heat. From the first call, they were on it! They came right over, diagnosed and sadly ended up needing a new furnace. They never tried to upsell and left every decision up to me.”

Rory Thornton · Google review, January 2026
★★★★★

“Carl, Dillon, and the entire installation team are highly responsive, professional, and truly dedicated to customer care. Their workmanship is excellent — from the neatly managed linesets to the well-installed condensers.”

John Putignano · Google review, September 2025
★★★★★

“All Phases replaced an oil fired furnace and installed a new gas fired furnace, including whole house air conditioning. The crew was professional and did the job in a timely and workman-like manner.”

Fred Doyle · Google review, September 2025
★★★★★

“Great experience with All Phases Mechanical! They respond quickly when called, and showed up right on time for the installation. The pricing was very fair compared to other quotes I got.”

Mark Newton · Google review, September 2025
Angi 2025 award HomeAdvisor Elite Service HomeAdvisor 100 reviews HomeAdvisor 3 year member

Meet the crew

Check out our videos

Proudly serving

Service area

Area codes 508, 774, 781, 339 & 617 — Boston, the South Shore, Southeastern Massachusetts and Cape Cod, and surrounding areas.

  • Acushnet
  • Attleboro
  • Taunton
  • Boston
  • Bourne
  • Bridgewater
  • Brockton
  • Bryantville
  • Buzzards Bay
  • Canton
  • Carver
  • Cohasset
  • Dighton
  • Duxbury
  • East Bridgewater
  • East Freetown
  • East Taunton
  • East Wareham
  • Easton
  • Fairhaven
  • Falmouth
  • Forestdale
  • Foxboro
  • Freetown
  • Halifax
  • Hanson
  • Hyannis
  • Kingston
  • Lakeville
  • Manomet
  • Mansfield
  • Marion
  • Marshfield
  • Mashpee
  • Mattapoisett
  • Middleborough
  • Monponsett
  • New Bedford
  • North Attleborough
  • North Easton
  • Norton
  • Norwood
  • Onset
  • Osterville
  • Pembroke
  • Plainville
  • Plymouth
  • Raynham
  • Rehoboth
  • Rochester
  • Sandwich
  • Sharon
  • Somerset
  • South Easton
  • Stoughton
  • Swansea
  • Walpole
  • Wareham
  • West Bridgewater
  • West Wareham
  • Yarmouth
  • Yarmouthport

Financing available

Have a dream project in mind?

Need a financing solution? All Phases Mechanical offers financing options through Hearth.

Now hiring

All Phases Mechanical is seeking HVAC technicians and sheet metal technicians for immediate hire. 4–5 years minimum experience. Send your résumé to [email protected], or call/text Carl at 508-566-6777 or Susan at 781-588-3502.

Contact us

Call anytime, 24/7

To request more information or set up an appointment for an estimate, call us. For emergency service or an estimate, call the mobile office.

508-566-6777
Office
508-947-2777
Local
508-291-1177
Email
[email protected]
Mailing address — letters & packages
93 Benson Street
Middleborough, MA 02346
Hours
Emergency service 24 hours, 7 days a week
Proud member:Cranberry Country Chamber of Commerce

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