HVAC Repair & Installation in Baltimore, MD
AIRSOURCE, LLC has installed, repaired, and maintained residential and commercial HVAC systems across Baltimore County since 2014, factory-trained technicians, quality equipment, and work we stand behind.
What we do
Installation, repair, and maintenance for residential and commercial properties throughout the Baltimore area.
AC Repair
Fast, accurate diagnosis and repair for residential and commercial air conditioning.
AC Installation
New system installation and full replacements, sized and installed right the first time.
Heating Repair
Furnace and heat pump repair to get your system running before the cold sets in.
Heating Installation
New furnace and heating system installation, sized correctly for your space.
HVAC Maintenance
Filter replacement, coil cleaning, refrigerant checks, and seasonal tune-ups.
Indoor Air Quality
Air quality solutions that keep the air inside your home or business clean year-round.
Ductless Mini-Split Installation
Mitsubishi ductless systems for zoned comfort without ductwork.
Commercial HVAC
Installation and service scoped for commercial properties, from single units to full systems.
×
A verified Mitsubishi Diamond Contractor.
AIRSOURCE, LLC is a Mitsubishi Diamond Contractor, factory-trained directly by Mitsubishi Electric Trane HVAC US and listed on their official contractor directory. Choosing a Diamond Contractor extends your system's residential warranty to 12 years.
12-Year Warranty
Mitsubishi extends its residential product warranty to 12 years on systems installed by a Diamond Contractor.
Advanced Training
Factory-trained directly by Mitsubishi Electric Trane HVAC US, with ongoing product and installation updates.
Independently Verifiable
Not a claim on our word alone, check AIRSOURCE's listing directly on Mitsubishi's own contractor locator.
From AIRSOURCE's project photos on Thumbtack
Our Story
Established in 2014, AIRSOURCE, LLC has provided heating and air conditioning services to the Baltimore County area and beyond. Owner Eli Borkowski holds a Maryland HVAC Master License, and the team is committed to superior customer service and ensuring your home or business stays comfortable year-round.
We work on residential and commercial properties alike, backed by a 5.0★ rating on Google and Thumbtack's Top Pro award two years running. Read our full story →
Why Baltimore homeowners choose AIRSOURCE
Straight from the reviews, not a marketing brief.
Upfront pricing. Customers consistently cite fair, competitive quotes with no surprise add-ons, a quote in one day is the norm, not the exception.
Factory-trained & licensed. Maryland HVAC Master License, authorized Trane & Mitsubishi dealer, not a subcontracted crew.
Fast response. Reviewers repeatedly mention same-day and next-morning visits, including holiday-weekend emergency calls.
Locally owned since 2014. Owner Eli Borkowski shows up on the job, not a call-center dispatch.
Our Guarantee
At AIRSOURCE, LLC, we stand behind our work and guarantee your satisfaction. We use only high-quality equipment and materials, and our team is trained and experienced to handle any HVAC issue. Financing options are available, ask when you call. Read our full guarantee →
Real reviews. Real customers.
Every quote below is copied exactly as the customer wrote it, nothing paraphrased, nothing invented.
“Eli was super prompt. From responding to my initial request for a quote to the full replacement of our HVAC was less than 48 hours. He beat competitor pricing and worked on a holiday weekend to ensure we were back up and running as quickly as possible.”
“From start to finish, Eli and his team were outstanding. Quickly assessed the situation, provided clear options with honest pricing, and delivered on our aggressive schedule. If you need commercial HVAC when the pressure is on, look no further.”
“Eli from Air Source did a great job specifying and installing a 2 zone mini split system in my house. Their price was fair and they completed the installation in 2 days as promised. I would recommend them to anyone.”
“Eli and AirSource have always been quick to respond, quote and complete the job. Eli has installed 3 HVAC systems for us (including 2 mini-splits). We highly recommend Airsource!”
“I had four other quotes, but AIRSOURCE, LLC was the best value with the best warranty on labor for a Trane 2-ton system. I had a quote in one day.”
“Eli was great, able to come and discuss our needs quickly and knowledgeably. He identified a serious ventilation issue in our attic we weren't even aware of, with no pressure to hire him for it. Would absolutely recommend and hire again!”
“Eli was super prompt. From responding to my initial request for a quote to the full replacement of our HVAC was less than 48 hours. He beat competitor pricing and worked on a holiday weekend to ensure we were back up and running as quickly as possible.”
“From start to finish, Eli and his team were outstanding. Quickly assessed the situation, provided clear options with honest pricing, and delivered on our aggressive schedule. If you need commercial HVAC when the pressure is on, look no further.”
“Eli from Air Source did a great job specifying and installing a 2 zone mini split system in my house. Their price was fair and they completed the installation in 2 days as promised. I would recommend them to anyone.”
“Eli and AirSource have always been quick to respond, quote and complete the job. Eli has installed 3 HVAC systems for us (including 2 mini-splits). We highly recommend Airsource!”
“I had four other quotes, but AIRSOURCE, LLC was the best value with the best warranty on labor for a Trane 2-ton system. I had a quote in one day.”
“Eli was great, able to come and discuss our needs quickly and knowledgeably. He identified a serious ventilation issue in our attic we weren't even aware of, with no pressure to hire him for it. Would absolutely recommend and hire again!”
Proudly serving the Baltimore area
Based in Lutherville-Timonium, AIRSOURCE serves Baltimore County and the surrounding communities.
Frequently asked questions
Have a question we haven't answered here? Call 240.444.2797 and we'll walk you through it.
The lifespan of an HVAC system depends on various factors, including the type of system, how often it is maintained, and how well it is taken care of. Most HVAC systems last between 10 and 15 years.
We offer a range of HVAC maintenance services, including filter replacement, duct cleaning, coil cleaning, refrigerant level checks, and more. Regular maintenance is essential to keep your HVAC system running efficiently and to prevent breakdowns.
During an HVAC installation, our technicians assess your space and recommend the best system for your needs. They then remove the old system, install the new one, and test it to ensure it is functioning properly.
Get a Free Quote
Tell us what's going on and we'll get back to you with a quote, no obligation.
Better yet, see us in person.
We stay in constant communication with our customers until the job is done. Call, or send a quote request, and we'll follow up.
| Mon | 7:00 AM – 5:00 PM |
| Tue | 7:00 AM – 5:00 PM |
| Wed | 7:00 AM – 5:00 PM |
| Thu | 7:00 AM – 5:00 PM |
| Fri | 7:00 AM – 5:00 PM |
| Sat | 7:00 AM – 5:00 PM |
| Sun | 7:00 AM – 5:00 PM |
Call anytime for emergency service outside business hours.