Baltimore Air Conditioning and Heating: Service, Repair, and Equipment Contractors

This local page provides resources and information about A/C and heating service, repair, maintenance, and installers in Baltimore, Maryland. This information includes featured HVAC contractors plus a link to our handy and free printable grid to compare price quotes. Here you will also find sources of energy efficiency and equipment rebates, the ratio of hours of cooling and heating needed each year, and more.

About HVAC Contractors

The contractor you choose will make a big impact on your satisfaction and purchase of a new air conditioning and heating system. Why? They determine the size and type of equipment for your situation and they control the quality of the installation. If you have not yet seen them, in the top navigation menu on this page you will find quick tips and expanded topics on two essential topics: how to select the right HVAC contractor and how to buy a new heating and cooling system.

Most air conditioning and heating contractors stock and install a limited number of equipment brands. Some independent contractors will order and install any brand of new equipment you prefer to buy. Most of these service companies will perform repair and maintenance on all brands of central heaters, furnaces and air conditioners.

In addition to heating and cooling for indoor comfort and energy savings, many HVAC companies perform air quality work such as air filters, dehumidifiers and humidifiers, ventilation and prevention of toxic carbon monoxide gas from your furnace. However, not all these companies perform energy efficiency improvements to houses or buildings. If the service company you select does not perform conservation improvements on homes or buildings, they should be able to recommend another Baltimore area company who does.

How to compare air conditioning and heating equipment price quotes

Air conditioning and heating systems are made of components or units, and these can be interchanged to make many possible combinations of efficiency and performance. In addition, based on the particular situation in your home or building, these components must be chosen and installed to accommodate them. For these reasons, comparing proposals, features, and prices can be more than confusing.

To help you sort through your options, use our free and printer-friendly cost comparison organizer found in the navigation on the top of this page. If you get multiple price quotes, it will save you a lot of time and headaches. This grid allows you to compare the essential features from contractor bids including: main components; equipment efficiency in SEER and AFUE; manufacturer’s and installer’s warranties; and equipment brand.

How the Baltimore climate and resources affect your HVAC needs and decisions

On the heating and cooling map of the U.S. with 5 zones, the Baltimore area lies in cooling zone 2 and heating zone 2. These require approximately 935 cooling hours and 3784 heating degree-days per year. As a general and relative guide, the average Baltimore home would need 4 times more heating than air conditioning over a calendar year. Differences in elevation or other topographical or climatic influences can cause microclimates, so be sure to rely on actual measurements and calculations from your heating and air conditioning contractor.

Due to the influence from the coast, the climate here is less extreme than other inland cities at the same latitude in the U.S. The humid subtropical climate of Chesapeake Bay area brings days during which home heating and cooling may not be needed. However, on these same days, a dehumidifier, whole house air filter or fresh air ventilation could make a huge difference in your comfort.

Pollen, allergies and air filters in Baltimore

The pollen from certain coastal middle Atlantic region plants can influence what kind of air filter your family and your A/C system need. The various types of pollen change with the season and weather conditions. Some examples from the DC area daily pollen count and allergy forecast include: elm, cedar/juniper and poplar, aspen, and cottonwood. Other intermittent, but common allergens include ragweed in the fall and mold spores.

Local utility and conservation providers

Local utilities and availability of natural gas can determine which HVAC equipment will give you the best combination of comfort and lower utility bills. Since natural gas and heating oil are available in the Baltimore area, many consumers have chosen central furnaces rather than heat pumps. If natural gas or fuel oil prices climb faster than electricity rates, this trend might change. In situations where an all-electric heat pump makes the best choice, some of the factors that affect air source heat pumps include the average daily temperature, fluctuations in temperature, and humidity.

In our search for local listings, we found a resource that helps with energy conservation programs statewide for Maryland. In many cases, your A/C and heating contractor can coordinate all available energy conservation and rebate programs, from federal tax credits to local rebates and incentives.

How a whole house approach includes the “envelope” in the load calculation

If you plan to get price quotes to buy a new A/C and heating system, look for contractors who will insert the heating and cooling demands of the Baltimore climate along with the size and condition of your home or building “envelope” into a complex, but essential load calculation. A rule of thumb load calculation based only on square footage or using the same size system as the old one without verification should be avoided. This calculation requires considerable expertise or software and interpretation.

Resources for HVAC technical or vocational training in the Baltimore/DC Metro area

If you are interested in learning more about the technical aspects of air conditioning and heating in the greater Baltimore/ Washington DC area, such as courses to get a Maryland HVAC license, here are some local and regional links for community colleges, schools and associations:

ACCA National Capital Chapter Apprenticeship Program
P.O. Box 4268
Silver Spring, MD 20914-4268
Phone: (301) 384-2222

Lincoln Tech Institute
9325 Snowden River Pkwy
Columbia, MD 21046-0000
Phone: (410) 290-7100

Brightwood College
1520 South Caton Avenue
Baltimore, MD 21227
Phone: (410) 951-6700

MD Capital Chapter of ACCA: The Air Conditioning Contractors Association of America.
National Capital Chapter ASHRAE: American Society of Heating, Refrigerating and Air-Conditioning Engineers.

A Supreme Heating and Air Conditioning: Repair, replacement and maintenance service for the greater Baltimore Maryland area, including the following counties: Baltimore, Anne Arundel, and Howard County. A Supreme services most makes and models of residential and light commercial AC and heating systems. Factory authorized dealer in the Baltimore area for Carrier and other leading brands of HVAC and indoor air quality equipment.