Customers consistently praised the responsiveness, professionalism, and thoroughness of the technicians, particularly highlighting Scott and Jacob for their excellent service.
Expertise
Technicians demonstrated extensive knowledge and provided clear explanations of services, earning high marks for their ability to communicate effectively with customers.
Efficiency
Many reviews noted the quick response times and efficient service, with technicians completing installations and repairs in a timely manner.
Installation Quality
Customers expressed satisfaction with the quality of installations, noting that the work was done professionally and with attention to detail.
Overall Satisfaction
Overall, customers reported a high level of satisfaction with their experiences, recommending Hall Air for HVAC services.
EB
Edward Bilezikjian
4 days ago
5.0
Hall Air, Scott Marcuson / Master Service Technician performed an excellent service in performing our annual HVAC/Boiler Servicing update to our equipment and radiators throughout our house for confirming proper operation. Thank you for the great service.
NH
Nancy Hinson
5 days ago
5.0
Scott was excellent!! Very thorough and explained everything about maintenance and the HVAC unit (settings, etc.) Can't say enough nice things about him!! Outstanding!
PS
Paul S
Dec 19, 2025
5.0
We recently had our first service visit from Hall Air. The technician Scott was thorough with a comprehensive inspection, gave us good advice and recommendations and answered all of our questions. He is very knowledgeable and straight forward and gave us an excellent assessment of our current systems and future options. Thank you.
CS
Chris Schiavo
Dec 16, 2025
5.0
Jonathan was our sales person who clearly proposed what would be the best system for our home taking advantage of available promotions and tax rebates.
The installation was completely seamless and we hardly knew the team was here. A 2 unit install was completed within the day. Afterward, they explained everything about the system and how to maximize the controls for comfort and efficiency. Great experience!
JJ
J
Dec 12, 2025
5.0
I rarely write reviews but will make an exception when service is outstanding. That is the case with Hall Air.
Hall provided exceptional service when I was without heat for a few days. I called on a Sunday afternoon and got their answering service. The person I spoke with was very helpful. Sunday evening, Lani with Hall reached out via text to say she could send a technician the next day (Monday).
It started snowing Monday morning, but that didn't stop Hall from arriving. I got a text early afternoon letting me know the technician, Scott, was on his way. While I waited, I called the office to discuss payment. I spoke with Lani who did a great job explaining the benefits of their maintenance plan. Scott arrived shortly thereafter when it was cold, windy and snowing heavily. He was polite, professional, and positive. He got the heat back on immediately! We discussed the maintenance plan further, and I opted in.
I highly recommend Hall Air for their responsiveness, expertise and commitment to the customer.
Julia
Prior to the arrival of our HVAC technician, we advise you to ensure the area surrounding your outdoor unit is clear, replace or clean your air filters, and verify your thermostat settings. These steps will help facilitate a smooth service visit.
Do you offer any guarantees or warranties for your work?
David L Hall Inc stands behind our work with a complete customer satisfaction guarantee and a 10-year warranty on labor. We also adhere to manufacturers' warranties for all products. If you're in need of reliable HVAC services, we encourage you to contact us today.
What services does David L Hall Inc offer?
Our comprehensive HVAC services include heating repair and maintenance, heating system installation, indoor air quality solutions, mini split ductless systems, air conditioning repair and service, AC installation, preventative maintenance programs, boiler services, and general heater services.
Do you offer financing?
Indeed, we do. We've partnered with several financial institutions to provide our customers with accessible financing options. For more information on getting approved for HVAC service financing, please visit our website to see our list of partnering banks.
How much does a system replacement cost?
The cost of system replacement can vary significantly depending on the size of your home and your specific comfort requirements. To receive an accurate estimate for your HVAC replacement, we recommend scheduling an assessment with our team.
How often should I schedule maintenance for my system?
We recommend scheduling maintenance twice a year for most HVAC systems. However, gas systems require an annual safety inspection. Regular maintenance helps ensure optimal performance and longevity of your system.
What are the signs that my HVAC system needs a repair?
Common indicators that your HVAC system may need repair include unexpectedly high utility bills, frequent system breakdowns, excessive dust accumulation in your home, and unusual noises coming from your unit. It's worth noting that residential HVAC systems constitute nearly 40% of the market, underscoring our commitment to maintaining your home's comfort year-round.
How long does an HVAC system typically last?
Based on our experience, a well-maintained HVAC system typically has a lifespan of 10 to 15 years. Regular servicing by a qualified HVAC contractor is key to maximizing your system's longevity.
How often should I replace my air filters?
Our professional recommendation is to replace your air filters on a monthly basis. For optimal HVAC performance and air quality, consider entrusting your system's maintenance to our experienced team.
How much does it cost to repair my system?
Repair costs can vary widely depending on the specific issue. However, by enrolling in our preventative maintenance plan, you can benefit from a 15% discount on repair services, potentially leading to significant savings over time.
What steps should I take to prepare for my HVAC service appointment at David L Hall Inc?
Before the HVAC technician arrives, clear the area around your outdoor unit, replace or clean air filters, and check your thermostat settings to ensure a smooth service visit.
Does David L Hall Inc offer warranties or guarantees on their HVAC services?
Yes, they provide a complete customer satisfaction guarantee and a 10-year warranty on labor, along with honoring manufacturers' warranties for products.
What kinds of HVAC services are available at David L Hall Inc?
They offer heating repair and installation, indoor air quality solutions, mini split ductless systems, air conditioning repair and installation, preventative maintenance, boiler services, and general heater services.
Are there financing options for HVAC services at David L Hall Inc?
Yes, financing is available through partnerships with several financial institutions. You can visit their website for more information on financing and approvals.
How often should I schedule maintenance for my HVAC system with David L Hall Inc?
It's recommended to schedule HVAC maintenance twice a year, with gas systems requiring an annual safety inspection to ensure optimal performance and system longevity.
Where is David L Hall Inc located, and what are their business hours?
David L Hall Inc is located at 2424 Granite Ridge Road, Suite A, Rockville, VA 23146. They operate Monday through Friday from 7:30 AM to 4:00 PM and are closed on weekends, but offer 24-hour service.
Which brands does David L Hall Inc work with for HVAC products?
They work with brands such as Ruud, Trane, Lennox, Daiken, Rheem, Mitsubishi, Bosch, American Standard, and York.
What nearby places can I visit before or after my appointment at David L Hall Inc in Rockville?
Nearby, you can visit Midnight Brewery for drinks or The Shed for party supplies, both convenient stops before or after your HVAC service appointment.
Are there any other home improvement stores near David L Hall Inc?
Yes, Inspired Closets and Miracle Method Surface Refinishing are nearby home improvement stores where you can find additional services or products for your home.
How can nearby service providers like Heritage Plumbing Services LLC complement the services of David L Hall Inc?
Heritage Plumbing Services LLC offers plumbing and HVAC services, which can complement David L Hall Inc's HVAC expertise, providing customers with broader home maintenance options within the Rockville area.