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Avatar for Major league hvac
Major league hvac
5.0(
21
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+3 more

Serving Vienna, MD and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Talked to a lot of companies. Mike was about as dte & real as you get. Immediately got good vibes. He sent his 2 son's out to check out my AC unit outside. I'd gotten varying opinions & estimates. Tbh, I became weary, but I figured Mike wasn't feeding me anything but what was real. His boys showed on time, extremely polite, well mannered, knowledgeable & professional. They went right to work. Found the problem without trying to sell me a bunch of extra stuff or pad the price for something it didn't need. Without hesitation, I said do it! I have to admit for 2 very young guys, they knew what they were doing. When they were done fixing my system was cranking it out & putting like a kitten. I was afraid out what my bill would be. Couldn't believe how fair & reasonable it was. No extra fees, taxes, add ons etc...EXTREMELY IMPRESSED...I definitely found a HVAC + Co on the Eastern Shore I trust and highly recommend them. Family business & it shows with pride they take it seriously..."
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+6

9 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Mack's Home Services, LLC
Mack's Home Services, LLC
4.7(
603
)
Air Ducts & Vents - Clean

Serving Vienna, MD and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Damion was very professional, friendly and thorough. He took the time to explain everything to me and walked me through the entire dryer vent cleaning process before getting started. Once the job was completed, he showed me the results and made sure I was satisfied with the work. I highly recommend Damion and truly appreciate his excellent service. Thank you Damion."
Response time3 hrs
1 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Lawson Home Services, LLC
Lawson Home Services, LLC
4.6(
60
)
Air Ducts & Vents - Clean

Serving Vienna, MD and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Donnie was the person who did the work -cleaning out our dryer vent using a camera to record the inside of the vent the entire vent was completely clog with lint, and after the wok was done, it was completely empty the work was very reasonable priced. I highly recommend Lawson Home Services"
Metal Door Crawlspace Entrace
Turtl Crawlspace Entrance
Attic Air Leaks
Attic Air Sealing
Garage Loft Ready for Sprayfoam

+137

Response time9 hrs
148 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Elite HVAC-R Service
Elite HVAC-R Service
5.0(
7
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Vienna, MD and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"I had a great experience with Nate. He was extremely knowledgeable about A/C systems and was far more well-versed than many other companies in the area. He took the time to explain everything clearly, answer my questions, and make sure I understood the issue and solution. Nate was also very friendly, professional, and informative throughout the entire visit. I truly appreciated his expertise and excellent customer service. I would highly recommend Nate to anyone needing HVAC service."
2 neighbors recently requested a quote
Kings Son and Services, LLC
4.8(
27
)
Window A/C Unit - Service or Relocate

Serving Vienna, MD and surrounding areas

Approved

In business since 1990

Free estimates

Small jobs welcome

"I have been a night store mgr at a large home improvement chain and I notice that this company, fathet and sons put their customers needs and deliver exactly what I imagined the work to come out to in both quality and cost effectiveness. They also finish all of their work. This has been the third time that I have used this company, and they exceed what I have expected every time. Thank you Home Advisor!!!!!!"
Our work
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Our work

+38

Response time7 hrs
Response rate94%
Recommended by96%of homeowners
Murchison cleaning solutions
New to Angi
Air Ducts & Vents - Clean

Serving Vienna, MD and surrounding areas

Approved

\n\nBusiness & Career Focus: You’re very committed to building Murchison Cleaning Solutions and positioning it as a professional, competitive cleaning company for post-construction, commercial, and apartment projects. You take care with proposals, pricing, and contracts so you come across polished and reliable.\n\nFinancial Growth Mindset: You think strategically about how to scale—like structuring bids to hit monthly revenue goals, negotiating terms like 50% deposits, and making sure your pricing is competitive but profitable.\n\nCompliance & Professionalism: You’re detail-oriented about certifications (OSHA, WBE, etc.), IRS forms, EIN/DBA issues, and making sure your business is set up correctly. You want everything to look official and credible.\n\n

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Air Conditioning questions, answered by experts

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

Yes, mini-split systems are generally less expensive to run than central air conditioners and are significantly more energy-efficient. Because mini-splits do not rely on ductwork, they avoid the energy loss associated with ducted systems, allowing cooled or heated air to reach its destination more efficiently. Additionally, they offer zoned control, meaning you can run units in individual rooms and turn them off in unoccupied areas. This capability can lead to energy savings of about 30% compared to a central air system, resulting in a lower monthly energy bill.

For the most part, you should leave your AC fan in “auto” mode so that it only runs during a heating or cooling cycle. Keeping it in this position uses less energy, which equals lower utility bills. However, there are some situations where it’s better to leave your AC fan on, including if you have allergies or there are lots of people in your home.

Look up your model number online to find additional information. Usually, you can just take a look at the old filter and find the brand name and dimensions to order a new one. When replacing the filter, always check that it’s pointed the right way to match the direction of your airflow. Many filters have arrows on them to help with this step.

Dry mode positively impacts indoor air quality by reducing excess moisture, which stops the growth of mold and mildew. By maintaining optimal humidity levels, dry mode creates a less hospitable environment for allergens and airborne pathogens, improving overall air quality. However, it's essential to ensure proper ventilation to prevent stale air accumulation.

The Vienna, MD homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.