FAQ Striving for Perfection


Home Air Conditioning Information
  • Q:What is your main phone number and fax number?

    A:Call us today at (703) 454-5040! You can send faxes to (703) 455-6677.

  • Q:What is your address?

    A:9704-A Gunston Cove Road Lorton, Virginia 22079

  • Q:What areas do you serve?

    A:We service both residential and commercial customers throughout Northern Virginia including all of Fairfax County, Prince William and Loudon County. 

  • Q:What are your hours of operation?

    A:Our office is open weekdays from 7 a.m. until 5 p.m.

  • Q:Do you have emergency service after hours?

    A:After normal business hours, on weekends and holidays, our phones are answered by an answering service. We have technicians “on call” after hours. Should an emergency arise after normal business hours, you can call the regular phone number and ask the answering service to page the on-call technician for emergency service. The technician on call will return your call within an hour.

  • Q:What forms of payment do you accept?

    A:We accept cash, checks, Visa, Master Card, American Express and Discover.

  • Q:Do you offer financing?

    A:We offer financing with approved credit through a third party for new equipment installation work. Rates and terms vary, so please call for details on our current offers.

  • Q:What’s included in the annual preventative maintenance contract?

    A:Regular maintenance and service on mechanical equipment prolongs its life and helps keep it running at peak efficiency. While inspections do not guarantee the continued operation of your HVAC equipment, potential problems can be spotted before they result in a breakdown. We will complete two (2) system inspections on the HVAC equipment. Upon completion of each inspection, we will provide the homeowner with an HVAC & Plumbing Unlimited, Inc. Mechanical Check Sheet for each system. Our Contract customers receive priority scheduling and a 15% discount on any repairs that might be needed throughout the year.

  • Q:How often do I change the filter?

    A:Keeping your filters clean is one of the most important and inexpensive ways homeowners can both increase the performance and help prolong the life of their HVAC systems. Dirty air filters can reduce the amount of airflow through your system, making your system work harder. Homeowners should avoid running their HVAC systems without filters. Filters improve indoor air quality, while preventing the accumulation of dust and dirt on the working parts of your furnace or air handler. Accumulated dirt can drastically reduce your system’s efficiency and performance, and it is frequently the cause of system breakdowns. You should change your filters whenever they are dirty. For an easy rule of thumb, the Department of Energy recommends replacing regular air filters in your furnace every month.

  • Q:Do you offer free estimates?

    A:We offer a free estimate to replace your HVAC System. We also will provide a free second opinion on failed compressors. Please contact us to schedule an appointment today.

Our Customers Are Our #1 Priority

See What They Have to Say About Us
  • M. Scozia

    Great Service

  • K. Lippold


  • B. Henry

    Great service!

  • Azin Razavieh

    Great Plumbing Service

  • Erik M.

    10/10 would recommend!

  • Jodie B.

    He found the problem quickly

  • Steve H.

    Offered us options and was clear about the different costs for each

  • Joy B.

    The only company willing to come out the same day

  • Lawrence B.

    Extremely happy with Unlimited!

  • Stephanie K.

    He was able to answer all my questions

  • Melinda F.

    Made everything perfect again

  • Tom F.

    They are excellent

  • Ka S.

    Quick to respond, efficient and always deliver exceptional quality

  • Ginni S.

    I am very satisfied and HIGHLY recommend this company!

  • Silvia K.

    Exceeded our expectations

  • Shobhana P.

    Very efficient, punctual and professional

  • Kay Y.

    Very friendly and super knowledgeable

  • Ardika S.

    Very clean work

  • Emily S.

    Competent and professional

  • Jennifer L.

    Knowledgeable and answered my questions

  • Lisa O.

    Takes the time to do a thorough job

  • Catherine

    He is excellent and knows what he’s doing!

  • Hector

    Honest suggestions and prices

  • Marion

    Represented HVAC Unlimited very professionally

  • Susan

    He took the time to explain things to me

  • Erik

    Super knowledgeable

  • Steve M.

    I wouldn't hesitate to give an unqualified recommendation to HVAC & Plumbing Unlimited. Nowhere will you find better service at a more reasonable price.

  • Pierre B.

    I recommend HVAC & Plumbing Unlimited to anyone who is searching for fair and honest repairs at a very reasonable price.

  • Frank T.

    I highly recommend their services to anyone in need. Of note, they provided me with a military discount which definitely helped with equipment and repair costs.

A Few Reasons to Choose HVAC & Plumbing Unlimited

  • Dedicated to Friendly & Reliable Service
  • Available 24/7 When You Need Us
  • We're Dedicated to Your Comfort
  • No-Nonsense Pricing for All Services
  • Factory-Trained & Certified Technicians
  • 100% Satisfaction Guarantee

Schedule A Service

To get in touch with us fill out the form below, or call (703) 454-5040 today.
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