Proudly servicing customers in the North Shore and Greater Boston Area.


Semper Mechanical is a Veteran-run HVAC company that provides high quality advanced heating and cooling systems, sales, service, and installation for residential and light commercial properties.


Our team is licensed, experienced, professional, responsible, and committed to 100% customer satisfaction.


Our service team is open 24/7 and loyal to all your HVAC needs. 


Founded by Peabody Fire-Fighter Billy Silva after his service in the Marines.


We are based in Beverly, Massachusetts and provide service in the North Shore and Greater Boston Area.


Heating/A.C Installation

Our team of experienced and qualified HVAC technicians install all brands of heating and cooling systems, and guarantee 100% satisfaction with your installed system.

Ductless Installation

Save energy and money by upgrading to a ductless system which provides both heating and cooling to the entire home! This high-quality heating and cooling option will lower your Carbon Footprint, and perfect for home and business owners.

24-Hour Emergency Service

We provide emergency heating and cooling repair and service 24/7! We are always loyal to your HVAC needs, and will always put you first!

Fall Preventative Maintenance

Fall Preventative Maintenance of the heating system is recommended each year. This consists of one of our HVAC experts visiting your home to change your system filter, inspect the exhaust and intake, check the condensate pump, service the burner box and gas furnace, check the flame, and run and test the heating unit.

Spring Preventative Maintenance

Spring Preventative Maintenance is recommended annually. This consists of one of our HVAC experts visiting your home and cleaning the outdoor unit, checking and blowing the drain lines, providing mold prevention service, changing the filter, and running and testing the cooling unit. 

Air Conditioners


Gas Furnace

Heat Pumps

Mini Split

Financing available

Fully Insured

Fully Licensed technicians

LG Certified

Service Guaranteed


Check out our project blog for all our recent heating and cooling installations!

Heating & Cooling

New Heat and Air Conditioning for a brand new two-family home in East Boston with a beautiful view of Boston skyline! Contact us today for your installation! New heat pump[…]

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Brand new LG Red Low Ambient for a carriage house that was converted into condo in Salem, MA. LG Ductless Splits offer both heating and cooling options, and save energy![…]

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We service and repair all brands! Call us today at (978) 291-6464 for your free professional system evaluation and estimate on upgrading or replacing your current system! Tell us the best way to reach you and we’ll contact you within one business day.