4.5 
440 Last update on September 07, 2025
All trades handyman, general construction items, repairs, hvac, plumbing, light electrical, landscape, cleanout, cleaning, automotive, concrete, tile, asphalt. one call can handle all your needs.
All trades handyman, general construction items, repairs, hvac, plumbing, light electrical, landscape, cleanout, cleaning, automotive, concrete, tile, asphalt. one call can handle all your needs.
Wide range of services include repair and replacement of hvac systems including furnaces, ac, and heat pumps. Work on everything from small residential units to large commercial units. I have 15 years of experience so I have worked on all types of units. I will give the best advice for you as my customer. Ive had my business for over 2 years
Wide range of services include repair and replacement of hvac systems including furnaces, ac, and heat pumps. Work on everything from small residential units to large commercial units. I have 15 years of experience so I have worked on all types of units. I will give the best advice for you as my customer. Ive had my business for over 2 years
M.J. Mechanical Contracting is a family owned and operated business that has been serving the Baltimore-Metropolitan and surrounding areas since 2016. Licensed, bonded and insured M.J. Mechanical Contracting is dedicated to offering our customers professional, reliable and safe services. Call us today for a free estimate. Precision. Trustworthy. Commitment to Excellence
"The technician was prepared, polite, and did the job completely and week."
Andy B on October 2023
M.J. Mechanical Contracting is a family owned and operated business that has been serving the Baltimore-Metropolitan and surrounding areas since 2016. Licensed, bonded and insured M.J. Mechanical Contracting is dedicated to offering our customers professional, reliable and safe services. Call us today for a free estimate. Precision. Trustworthy. Commitment to Excellence
"The technician was prepared, polite, and did the job completely and week."
Andy B on October 2023
Local Maryland builder & remodeler. We do custom design build work, high end remodeling, kitchens, bathrooms, finished basements, additions, exterior and interior remodeling, hardscape and outdoor spaces, and the list goes on!
"Matt did fantastic work and we couldn’t be happier with our choice to hire him. From our first meeting with him for our estimate, he was thorough, professional, and trustworthy. We hired him to complete our “punch list” to get our home ready to sell, and every element was completed to a high standard. We would not only recommend MS Construction to others, but will be reaching out in the future for home improvement projects in our new property."
Caitlyn C on October 2023
Local Maryland builder & remodeler. We do custom design build work, high end remodeling, kitchens, bathrooms, finished basements, additions, exterior and interior remodeling, hardscape and outdoor spaces, and the list goes on!
"Matt did fantastic work and we couldn’t be happier with our choice to hire him. From our first meeting with him for our estimate, he was thorough, professional, and trustworthy. We hired him to complete our “punch list” to get our home ready to sell, and every element was completed to a high standard. We would not only recommend MS Construction to others, but will be reaching out in the future for home improvement projects in our new property."
Caitlyn C on October 2023
Looking for the perfect construction partner for your next project? Look no further! Our experienced team of construction professionals is committed to delivering quality workmanship and exceptional service every step of the way. Whether you're in need of commercial or residential construction services, we have the knowledge and expertise to tackle projects of all sizes. From pre-construction planning and design to project management and construction, we will work with you every step of the way to ensure your vision becomes a reality. With a focus on safety, quality, and efficiency, we guarantee a smooth and stress-free construction process. Contact us today to schedule a consultation and see why we're the top choice for construction services in the area!
Looking for the perfect construction partner for your next project? Look no further! Our experienced team of construction professionals is committed to delivering quality workmanship and exceptional service every step of the way. Whether you're in need of commercial or residential construction services, we have the knowledge and expertise to tackle projects of all sizes. From pre-construction planning and design to project management and construction, we will work with you every step of the way to ensure your vision becomes a reality. With a focus on safety, quality, and efficiency, we guarantee a smooth and stress-free construction process. Contact us today to schedule a consultation and see why we're the top choice for construction services in the area!
Gunpowder Mechanical Services is a small business located in Harford County MD. We service Baltimore City and County, Harford Co, Howard Co, and Carroll Co. Currently a sole proprietorship. With 17+ years in HVAC and plumbing trades our focus is residential service and installations. Everyday plumbing services, drain cleanings, faucet repairs and more. HVAC services, cleanings, tune ups and replacements. The focus for Gunpowder Mechanical Services is to be a quality service provider that you can depend on when you need it most.
Gunpowder Mechanical Services is a small business located in Harford County MD. We service Baltimore City and County, Harford Co, Howard Co, and Carroll Co. Currently a sole proprietorship. With 17+ years in HVAC and plumbing trades our focus is residential service and installations. Everyday plumbing services, drain cleanings, faucet repairs and more. HVAC services, cleanings, tune ups and replacements. The focus for Gunpowder Mechanical Services is to be a quality service provider that you can depend on when you need it most.
Vico&Son HVAC Services And Sheet Metal LLC can help you with your cooling, heating, and ductwork. Quality work and good price! We solve your air conditioning problem.
Vico&Son HVAC Services And Sheet Metal LLC can help you with your cooling, heating, and ductwork. Quality work and good price! We solve your air conditioning problem.
I have been in the HVAC Felid for 5+ years. Currently work for a HVAC company doing new furnace, boiler, mini split systems and i also do service on the side when your ac/ heat decide to give out on you i can help fix the problem instead of getting a new equipment
I have been in the HVAC Felid for 5+ years. Currently work for a HVAC company doing new furnace, boiler, mini split systems and i also do service on the side when your ac/ heat decide to give out on you i can help fix the problem instead of getting a new equipment
Jt waterworks We specialze in plumbing water and sewer repairs drain cleanings new construction houses and all service
Jt waterworks We specialze in plumbing water and sewer repairs drain cleanings new construction houses and all service
Residential & Commercial Heating Ventilation and Air Conditioning Company. We Service Baltimore City, Baltimore County, Carroll County, Harford County and More. We are reliable and will make your Home and Commercial Comfort a Breeze
Residential & Commercial Heating Ventilation and Air Conditioning Company. We Service Baltimore City, Baltimore County, Carroll County, Harford County and More. We are reliable and will make your Home and Commercial Comfort a Breeze
Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.
While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.
The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.
From average costs to expert advice, get all the answers you need to get your job done.
Average costs of HVAC inspections vary based on house size, location, and type of HVAC system. Follow our easy guide to gauge your home’s HVAC inspection cost.
Whole-house humidifier costs vary based on the type and size of the unit, along with other factors. The price might be worth it for people living in dry regions.
Time for a new oil tank? If your HVAC system isn’t performing like it should, you need to know the factors that impact oil tank replacement cost.
A ductless mini-split heat pump can cool and heat your home without all of the costly and complicated ductwork. Learn more about how a mini-split works.
Leaking AC coils can compromise your entire home cooling system. Look for these six signs of a leaking evaporator coil, and schedule a repair ASAP.
Thinking about buying an ionizer? Discover the pros and cons of ionic air purifiers, how they work, and whether one is the right choice for your indoor air quality.
