Serving Worcester County, MA, D & D Heating & Air Conditioning Inc has been the trusted HVAC company in Millbury, MA and the surrounding areas for over 25 years. As a locally owned business, we are deeply committed to providing our community with the highest level of comfort. Our team of experienced professionals is dedicated to delivering quality heating and AC repair, installation, and more. We pride ourselves on our reputation, built on countless referrals from satisfied neighbors and friends. Our commitment to quality is further underscored by our 1-year parts and labor warranty after installation. Extended hours are available by appointment. For a free estimate, contact us for a free estimate.
Details
Requires appointmentAvailable
Onsite servicesAvailable
Wheelchair accessible entranceAvailable
Wheelchair accessible restroomAvailable
Wheelchair accessible seatingAvailable
Location
Certified by D & D Heating & Air Conditioning Inc • May 03, 2026
Certified by D & D Heating & Air Conditioning Inc • May 03, 2026
Monday7:30 AM - 4:00 PM
Tuesday7:30 AM - 4:00 PM
Wednesday7:30 AM - 4:00 PM
Thursday7:30 AM - 4:00 PM
Friday7:30 AM - 4:00 PM
SaturdayClosed
SundayClosed
Reviews
4.9
87 reviews
5 stars
82
4 stars
2
3 stars1
2 stars1
1 star1
PK
Paula Kiley
4 days ago
5.0
Both service men were respectful, efficient and polite.
PB
Paul Baril
4 days ago
5.0
Knowledgeable, courteous, professional. Great experience.
JM
JoAnne Minardi
Apr 2, 2026
5.0
Response time was great. Had new a/c unit installed within 2 weeks. Service techs arrived promptly and were able to complete job in 1 day. Very happy with work done.
CD
cheryl deprospo
Feb 4, 2026
5.0
D & D arrived exactly when they scheduled the appointment for. They completed the job with efficiency and consideration for our workspace and employees comfort! Thank you D & D!!!!
AH
A Hanson
Jan 28, 2026
5.0
Great communication/ explanation and completed work promptly at a very reasonable price. Would absolutely recommend D & D
Frequently Asked Questions About D & D Heating & Air Conditioning Inc
What should I do to prepare for my service appointment?
To ensure your appointment goes smoothly, please clear the area around your heating or cooling equipment to provide our technicians with easy access. Make sure pets are secured in a separate room, and let us know about any specific concerns or issues you've noticed with your system. If you have maintenance records or warranty information available, having those on hand can be helpful.
Do you offer any guarantees or warranties for your work?
Yes, we stand behind the quality of our work with warranties on both labor and parts. The specific terms depend on the type of service performed and the equipment installed. Our team will provide you with detailed warranty information for your particular service or installation, and we're always available to answer questions about coverage.
What products and services does D & D Heating & Air Conditioning Inc offer?
We provide comprehensive heating and cooling solutions for residential and commercial properties throughout central Massachusetts. Our services include installation, repair, and maintenance of furnaces, air conditioners, heat pumps, and ductless systems. We also offer indoor air quality solutions, emergency repairs, seasonal tune-ups, and energy efficiency consultations to keep your home or business comfortable year-round.
What services does D & D Heating & Air Conditioning Inc provide?
They provide residential and commercial HVAC sales, installation, and services including heating and air conditioning installation and repair, mini splits, heat pumps, AeroSeal contracting, duct sealing, and sheet metal fabrication.
Where is D & D Heating & Air Conditioning Inc located?
The business is located at 125 Southbridge Road, North Oxford, MA 01537.
What are the business hours for D & D Heating & Air Conditioning Inc?
They are open Monday through Friday from 8:00 AM to 5:00 PM and closed on Saturdays and Sundays, with extended hours by appointment.
What brands does D & D Heating & Air Conditioning Inc work with?
They work with brands such as Aeroseal Contractor, American Standard, Trane, Rheem, Mitsubishi, Fujitsu, and Triangle Tube.
What payment methods are accepted at D & D Heating & Air Conditioning Inc?
They accept American Express, Cash, Check, Discover, Invoice, MasterCard, and Visa.
Does D & D Heating & Air Conditioning Inc offer wheelchair accessible facilities?
Yes, the business has wheelchair accessible entrances, seating, and restrooms, including unisex restrooms.
Do I need an appointment to receive services from D & D Heating & Air Conditioning Inc?
Yes, appointments are required for their services.
What is a nearby place where I can grab coffee before visiting D & D Heating & Air Conditioning Inc?
You can visit Dunkin', a coffee shop and donut place, located nearby for a quick coffee or snack before your appointment.
Where can I rent a moving truck or trailer near D & D Heating & Air Conditioning Inc?
U-Haul Neighborhood Dealer and Utility Trailers of New England are nearby for truck and trailer rentals, making it convenient if you need moving equipment before or after your visit.
Are there any automotive services near D & D Heating & Air Conditioning Inc?
Nearby automotive services include Wilder moto-sports for motorcycle repair and Frontline Motor Sales for car sales and services.
Brand Certified Facts from D & D Heating & Air Conditioning Inc
This information is certified by D & D Heating & Air Conditioning Inc and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified May 03, 2026Yext Knowledge Graph
Address
Categories
Geo coordinates
Legal business name
Hours of operation
Phone number
Official website
Syndication Network
Approved business data is pushed to 100+ publishers, including: