Let us keep you cool!

About Us

Reliable HVAC Professionals

We are a small family owned business serving the Northern Virginia area for over 29 years. We strive on repeat service. We offer evening hour service at no additional charge so that you do not lose time from work. Our overhead is much lower than most service companies which in turn lowers the cost to the customer. We strive on customer service and guarantee, "Once a customer, Always a customer"!

Company History

Sines Appliance opened its doors back in 1990 and was known as Sines Appliance Service Of Chantilly.  Mr. Sines started his career off as a machinist mate in the Navy. He continued his career with DynCorp for 17 years where he performed repairs on mechanical, electrical, plumbing, and HVAC equipment. During this time, Mr. Sines started focusing his time toward Sines Appliance Service.  He wanted to provide a service to customers that was lacking in the early 90's.  This was to provide evening and weekend service at no additional cost so customer would not need to take time off from work.  In early 2000, customers started requesting HVAC services. Mr Sines went through a couple of HVAC partnerships and learned that his partners did not hold the same standards as him. In 2016, Mr. Sines formed SINES HVAC SERVICES, LLC,

Customer Satisfaction Guaranteed

We serve both residential and commercial clients and offer a variety of money-saving solutions. We combine our use of the highest quality parts and equipment, and our dedication to delivering  exceptional service to provide you with top quality service.

Customers that have been serviced by Sines Appliance include:

Century 21 Performance         Century 21 Old Dominion

Artledge Realty                          Remax Alliance

Coldwell Banker                         Long & Foster

Nextel                                          Sprint

Golden Living Center                Thai Orchard Restuarant

Home Warranty AHS                 Propman Property Management

Contact Us

Send Message

Fill out the contact form and receive a 10% discount on your first visit.  Refer a friend and your next service call fee is on us! (Service Call Fee Only)

For emergency service, please contact us at your convenience.  We look forward to serving you.

Sines HVAC Services, LLC



Monday - Friday: 9am - 5pm

Saturday - Sunday: By appointment only