978-897-8888 | office@advancedmechanical.net Mon–Thu 7:30–4:00 · Fri 7:30–1:00 · After-hours 6:00am–10:30pm for plan members
Stow, Massachusetts · Since 1996

Heat, water and power —
done right the first time.

Advanced Mechanical Systems is a full-service plumbing, HVAC and electrical contractor serving homes and businesses across MetroWest Boston and Middlesex County.

Factory-trained, licensed and insured. Free estimates on new HVAC installations, system replacements and large-scale plumbing work.

An AMS technician working inside an electrical panel
Licensed · Insured · Factory trained
Certified Carrier® Factory Authorized Dealer Carrier® Air Quality Certified IGSHPA Certified Novo Water Filtration Certified Sheet Metal Licensed Generac Certified Dealer
What we do

One contractor for the whole building.

Plumbing, heating, cooling and electrical — new installations, upgrades, replacements and retrofits, for both residential and commercial systems. We also handle consultations, control system configuration and troubleshooting.

Plumbing

Kitchen and bathroom plumbing, repairs and replacements, water heater installation including tankless, and whole-house water filtration. Free water quality assessment.

Plumbing services
Plumbing connections being fitted

Heating

Hydronic specialists: boilers and furnaces, radiant heat, snowmelt, panel radiators and towel warmers. Experienced in every fuel type, and able to work with the system you already have.

Heating services
Radiant floor heating being installed

Air Conditioning

Properly sized cooling and humidity control for New England summers. New installs in old houses and new, plus repair on any brand of air conditioner.

Cooling services
Ductless indoor unit in a living room

Heat Pumps

Ducted and ductless, including dual-fuel setups for the coldest weeks. IGSHPA certified. One system that heats and cools, usually at a lower running cost.

Heat pump services
Outdoor heat pump unit

Electrical

Licensed electricians for interior and exterior work, panel and service upgrades, whole-home surge protection and Level 2 EV charger installation.

Electrical services
Electrician wiring a junction box
Maintenance agreement

Pay this year, prepay next year, stop absorbing increases.

The AMS Maintenance Agreement Plan keeps heating and cooling systems running at peak performance. You pay for the current year's maintenance and prepay the following year during your regular service visit.

Members are enrolled automatically in the Preferred Pricing Program.

Ask about the plan

What members get

  • 3-year price guarantee — protection from annual increases in cleaning fees
  • 15% off repairs
  • Discounted service call rates
  • Priority after-hours emergency service, 6:00am to 10:30pm
  • Annual maintenance reminders, so nothing gets missed
From customers

Thirty years of repeat calls.

Reviews published on the company's own site, reproduced as written.

“Advanced Mechanical Systems has done HVAC work for my retail business chain for over 5 years and does a great job. Their technicians are always very professional, knowledgeable and friendly. Their pricing is very reasonable and their response time is quick. I would definitely recommend them.”

John A.

“All AMS personnel are super! Especially Cristian who always does a very thorough and professional job prepping my oil burner for winter. Keep up the good work!!”

Dan S.

“Outstanding installation of 2 Carrier systems. Hard working, team spirit, cooperative, friendly, etc, etc… Will gladly accept questions from other prospective customers. Great job!”

David B.

“I have used Joe Bolinsky and his firm twice in the last few years to do full residential AC installations. This included an installation in a 170 year old house and all the challenges that brings, particularly in finding space for the ductwork. Joe and his crew found a way and I couldn't be happier. Great service, great price, great team, great job.”

Mike G.
Equipment

The brands we stand behind.

AMS works only with vendors whose products we can service for the life of the system.

Carrier Factory Authorized Dealer Bosch Viessmann The Unico System Novo Water Filtration

Why these vendors

No heat? AC out? Plumbing emergency?

Call the office during business hours. Maintenance agreement holders get priority after-hours service from 6:00am to 10:30pm.

Call 978-897-8888 Request service