What we do

Heating, cooling & refrigeration under one roof

Properly designed and installed systems create a building’s environment and preserve your investment. DG Service Company is staffed 24/7 with trained technicians for design & installation, maintenance, and repairs — commercial and residential.

70°+

Heating

Heating system design, installations and repairs for commercial and residential customers. Technicians experienced with natural gas, propane and oil, and with forced hot water, forced hot air and radiant delivery systems.

Heat pumps are one of the fastest-growing technologies for ultra-efficient heating, extracting heat from outside air and delivering it indoors, even in colder temperatures. Radiant heat paired with a high-efficiency boiler offers outstanding comfort and energy savings in residential and commercial flooring.

Regular checkups include changing filters and belts, and inspection and cleaning of all parts including the firing mechanism. Commercial/industrial contracts and seasonal options are available.

Oil · Gas · Electric · Heat pumps · Radiant · Boilers

68°

Air Conditioning

Air conditioning system design, installation and repair for commercial and residential customers. The best time to install central air is winter or early spring; cost varies with the size of the area, the age of the building and existing ductwork.

Ductless systems are a good option for residential settings and certain commercial spaces. Regular checkups of refrigerant levels, filters and belt drives, and coil cleaning keep cooling systems working smoothly and efficiently.

Central air · Ductless · Mini-splits · Ventilation · Humidification & dehumidification

34°

Commercial Refrigeration

Food service, grocery and restaurants spend a large portion of their energy dollars on refrigeration. Energy-efficient fan motors, compressors, heat and defrost controls, case lighting and preventative maintenance plans all cut costs. DG Service has designed and installed a variety of custom walk-in coolers, refrigeration and freezer units for commercial clients.

Technicians are on call for ice machines, walk-in coolers, walk-in freezers, open-air coolers, drink/beer coolers, under-counter refrigeration and more.

Walk-ins · Ice machines · Coolers & freezers · Maintenance plans

99%

Indoor Air Quality

Indoor air quality product installation to improve air quality and kill viruses, bacteria and mold. See the details below.

Two DG Service technicians installing an evaporator fan unit inside a walk-in cooler

Design · Install · Maintain · Repair

One factor that sets us apart is the ability to design, install, repair and maintain HVAC/R systems. Our experienced technicians work together, connecting all phases.

Maintenance programs

Tune-ups before the hottest and coldest days

Properly maintained equipment creates a healthier environment, assures the lowest operating cost and helps prevent expensive failure. Both programs include preferred-customer status with 24/7 emergency service and equipment inventory and history kept on file.

Residential

Flat-Rate Heating & AC Maintenance

A seasonal flat-rate service for the Fall and Spring.

Gas/Propane heat — 1 system$199

Gas/Propane heat — 2 systems$289

Oil heat — 1 system$249

Oil heat — 2 systems$389

Air conditioning — 1 system*$189

Air conditioning — 2 systems*$289

Mini-split cleaning — 1 wall unit$189

Mini-split cleaning — 2–3 wall units$289

Mini-split cleaning — 4–6 wall units$489

More than 6 wall-mounted units, or deep cleaning: custom price.

* Standard filters included. Flat rate excludes specialty filters, repairs and anything not listed.

Enroll with Penny

Commercial

HVAC/R Maintenance Agreements

Commercial agreements keep heating, air conditioning and refrigeration running through extreme weather and peak business times. Free customized quote based on your systems.

Fewer building disruptions in peak times, evenings and weekends
Forecast equipment repair and capital replacement costs
Preferred customer status with 24/7 emergency service
Equipment inventory and history kept on file
Improved indoor air quality and conditioning
Maximized equipment life and efficiency; lower energy and repair costs

Call Penny at 508-758-7906 ext. 13 for your free quote.

Get a Free Quote

Comprehensive tune-ups include

Thorough inspection for malfunction and efficiency
Heat exchanger inspection for cracks / carbon monoxide leaks
Check refrigerant gases, glycol concentrations
Clean, sanitize and remove organic matter from refrigeration
Replace ignitors, flame sensors and gaskets

Replace filters, belts and UV lights
Clean and clear drains and drain traps
Combustion and efficiency analysis
Comprehensive maintenance reports

Indoor air quality

Cleaner air, installed in your ductwork

Our mission to keep customers comfortable includes indoor air quality (IAQ) products. We install an IAQ product in your ductwork that has been used around the world for 25 years. The technology kills bacteria and viruses on surfaces and in the air, blanketing indoor areas with advanced oxidants to kill microbials at the source.

99%

of viruses on surfaces killed by zinc ions

3 ft

kills 99% of sneeze germs within 3 feet

Kills bacteria and mold
Reduces odors, particulates and smoke
Relief for allergy and respiratory sufferers

Call us at 508-758-7906 to learn more about the RGF Environmental Group, Inc. IAQ line.

Residential product Commercial product

Dine local — IAQ installed by DG

Restaurants breathing easier

Joes Original61 State Rd, Dartmouth
The Black Whale106 MacArthur Dr, Pier 3, New Bedford
The Pasta House100 Alden Rd #4721, Fairhaven
Courtyard Restaurant270 Huttleston Ave, Fairhaven
Porta de Cidade231 State Rd #A, Westport
Knuckleheads85 MacArthur Dr, New Bedford
Cask & Pig780 State Rd, Dartmouth

About DG Service Company

Over 25 years of HVAC/R service

DG Service Company has been providing HVAC/R service to local, private and public organizations for over 25 years. Our mission is to keep our customers comfortable in all seasons and preserve their investments in heating, air conditioning and refrigeration systems by offering the best possible repair and installation services.

We are an accredited business with the Better Business Bureau (BBB) since 2008.

Design / Installation

Properly designed and installed systems create a building’s environment and preserve your investment.

Maintenance

Commercial contracts and residential maintenance service for heating and cooling systems.

Repairs

Staffed 24/7 with trained technicians for all your heating, cooling and refrigeration needs.

Front office lobby at DG Service Company

The DG fleet, ready 24/7

Meet the team

The people who answer the phone

Dan Deame

Vice President / Service

508-758-7906

Penny Cole

Service & Contracts Administrator

508-758-7906 x13

Janis Sirois

Billing / Office Manager

508-758-7906 x12

Audrey Knox

Accounts Receivable

508-758-7906 x11

Grace Knox, President — 508-758-7906 x10 (pictured at top).

Careers

Work where you love, love where you work

A career in HVAC/R is both rewarding and essential. Our mission is “to keep our customers comfortable” and our vision is to be the “most responsive, versatile and talented HVAC/R company in Southeastern Massachusetts.” We’re committed to the people who work for us: a safe work environment that fosters growth and rewards hard work and dedication.

If this sounds like the kind of company you’d like to grow with, we would love to hear from you.
— Grace Knox, President

“Train people well enough so they can leave, treat them well enough so they don’t want to.” — Richard Branson

Comprehensive benefits

Health Insurance

Dental Insurance

Life Insurance

Profit Sharing

Apprenticeships

Flexible Work Schedule

Vacation & Sick Time

Technical Training — Peterson School & NATE certified courses

Open positions

Office Staff

Adding office staff to our team.

HVAC Installation Technician

Adding additional installation technicians.

HVAC Service Technician

Adding additional service technicians.

Refrigeration Technician

Adding additional refrigeration technicians.

Call the office at 508-758-7906 to ask about openings.

DG Service sheet-metal shop with a technician at the brake

DG Service parts warehouse with a technician checking stock

Keeping our customers comfortable in every season.