HVAC System Maintenance

HVAC System Maintenance Manassas, VA

Your family’s health depends on clean air circulating in your Northern Virginia home. Over weeks and months, dust and contaminants build up in ductwork, on coils and especially in filters. These built-up particles slow airflow and make your HVAC system work harder. Lost efficiency and mechanical wear result in a less healthy indoor environment and more frequent heating and cooling equipment replacement. Regular HVAC maintenance eliminates the accumulation of contaminants in your home, saves you money and takes no DIY effort when you sign up for a Parrish Priority Service Plan.

 Call Us: (571)-650-1016

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Home Maintenance the Easy Way

Routine home maintenance can be overlooked when you are a busy professional. You’d rather spend your weekends relaxing—not rounding up tools and supplies to tackle seasonal cleaning and tuning of furnaces, heat pumps, air conditioners, ceiling fans, water heaters and plumbing fixtures. Parrish Priority Plans establish a regular schedule of maintenance for all your home systems, and most inspections are performed at the same time. Parrish takes care of scheduling and documenting, too. Your home gets the care it needs, and you enjoy the convenience, energy efficiency and comfort of a well-maintained home.

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Day or Night, Call Parrish for Emergency Repairs

You can’t always avoid a heating or cooling system failure, but you can be prepared with Parrish Services emergency response. Call (571)-650-1016 for 24/7 HVAC repair. Our team of certified home professionals is always on call to restore comfort and safety to your home and family.

Cold Season HVAC Maintenance Checklist

Parrish HVAC maintenance includes inspections and service required to keep your warranty in effect. All heating and cooling maintenance visits are documented and stored online for easy retrieval. Depending on the requirements of your home’s system, our Fall and Winter Checklist includes:

  • Clean or replace furnace or heat pump filters  
  • Inspect flue function & attachment
  • Inspect burner ignition & operation
  • Check wires, fuses & electrical connections
  • Clean heating elements & heat exchanger
  • Inspect inline air purifiers & filters
  • Replace worn belts & parts
  • Test for carbon monoxide
  • Calibrate thermostat
  • Lubricate moving parts
  • Test for gas leaks
 Call Us: (571)-650-1016

Warm Season HVAC Maintenance Checklist

With warm, muggy weather lasting for four months or longer, your Northern VA cooling system gets a workout. Parrish Spring and Summer HVAC Maintenance Checklist includes:

  • Clean or replace filters
  • Remove debris from around outside compressors
  • Clean coils in evaporator and condenser
  • Check drain lines for flow & unclog if needed
  • Empty & clean drain pans
  • Check refrigerant level & look for leaks
  • Inspect ductwork for dust & mold
  • Check wiring & electrical connections
  • Replace worn belts & pulleys
  • Inspect fan & blower operation
  • Lubricate moving parts
  • Recalibrate thermostat 

Improve Your Inside Air With HEPA Filters & Air Purifiers

Parrish stocks a complete selection of high-quality air filters and air purifiers. HEPA filters block fine particulates from entering and dispersing through your home’s heating and cooling system. Electronic and UV-light purifiers also remove bacteria and contaminants. Connect with Parrish online or call (571)-650-1016 to protect your home with installation of these indoor air quality products.

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Customer Reviews

Parrish has the best customers in Northern Virginia, hands down! To learn more about the Parrish Difference or discover the many reasons that so many new customers are now lifetime customers, check out these stories from verified clients.

Alton our technician was awesome. Extremely professional, courteous, and knowledgeable. I appreciated him taking on all my questions and able to answer them so thoroughly without ever feeling rushed. Definitely will be requesting him on all our electrical home needs going forward.
Chris Gabriel
Chris Gabriel
00:22 13 Feb 25
I had a great experience with Parrish, and the head technician, Danny Shoop (the assistant was also very good). We had a number of plumbing issues that needed repair, and the work was completed to our satisfaction. I was impressed by Danny's professionalism, his work ethic, and the suggestions and recommendations he made. I will definitely use Parrish again.
Trina Santry
Trina Santry
19:35 07 Feb 25
I wanted to express my sincere appreciation for Nathan Wilkinson for the exceptional service provided during the recent gas inspection. Your expertise and professionalism were evident from the start. You arrived promptly at the scheduled time, demonstrating a strong commitment to punctuality. You conducted a thorough and meticulous inspection of the gas systems, ensuring every detail was carefully examined. Your knowledge and attention to safety measures were remarkable. Thank you
Rita Domit
Rita Domit
14:09 28 Jan 25
I woke up at 6:30 with my smoke detector going off. Changes batteries but that didn't work. Web said they might be end of life, so I turned to m electrician. Parrish was wonderful! She was patient with me and went out of her way to help get it add today. Alton was the tech who was also helpful, patient, and informative. He came out and fixed the problem. He was professional and made me feel listened to. Cost was reasonable. Highly recommend this company.
Wendy Martinez
Wendy Martinez
22:52 22 Jan 25
Andre and the other technician did a great job installing the new furnace hot water heater and air conditioner. I appreciated the prep and care taken in my home as they carried out the old and brought in the new furnace and hot water heater. Andre took the time to answer what overall questions I had and kept me up to date on the installation progress.
Cynthia Venne
Cynthia Venne
14:07 20 Jan 25
Brandon did a routine inspection of our HVAC that we knew was reaching its replacement age. He was very professional and honest with his assessment and what needed to be repaired or replaced and why, complete with photos and diagnostics. He made sure I knew all my options and pricing (including cost savings) for the recommended parts and services. Very happy with Brandon’s service and Parrish in general.
Brett Gillies
Brett Gillies
14:43 17 Jan 25
Clarence Boyd fixed the toilet tank leak. He diagnosed the issue so quick and resolved it in less than 30 min. He is courteous, knowledgeable and efficient. I highly recommend him.
Rita Domit
Rita Domit
14:14 15 Jan 25
Alton conducted a comprehensive inspection of our home's electrical system. He explained issues as he found them, and even made water heater and fire safety recommendations. I was pleased with his ability to communicate issues clearly and provide a quick turnaround for the quotes.
nihad khdair
nihad khdair
01:02 15 Jan 25
My wife, Janice, worked with Alton Wallace to convert our fireplace from gas to electric, and Alton was wonderful! We’d never tackled a project like this before so we had some questions along the way, but Alton was very patient and willing to walk us through step-by-step. He was personable and very knowledgeable. We would definitely recommend Alton to future clients!
Douglas Gore
Douglas Gore
21:36 13 Jan 25
I am very pleased with the excellent service I received today from Nathan W. with Parrish services. He diagnosed the issue quickly and got my heat back on! He answered all my questions and was polite and courteous! Parrish has been our Heating/AC maintenance company for many years and always gives great service!
Anne Leeson
Anne Leeson
20:01 10 Jan 25
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Virginia Class A Contractor 2705038448 with HVAC, gas fitting, plumbing, and electrical specialties.

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