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Serving Fairfax, Loudoun,
Arlington, Prince William, Montgomery County, and
Washington, D.C.

Master Gas Fitter
Master Mechanical
BBB  -   A+ Rating
TRANE Comfort Specialist
Licensed, Bonded & Insured
VA License# 2705000147
 
 
Hours Of Operation:
7 DAYS a WEEK 7:00am - 10:00pm
  Emergency Service:
7 days a week, 365 days a year 
   
  Service Call $79 (FREE with repair*)after $30 coupon- see specialsService Call $79 (FREE with repair*)after $30 coupon- see specialsService Call $79 (FREE with repair*)after $30 coupon- see specialsService Call $79 (FREE with repair*)after $30 coupon- see specialsService Call $79 (FREE with repair*)after $30 coupon- see specialsService Call $79
(FREE with repair*) after $30 coupon- see specials
 
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Blog

How to choose a Heating & Cooling Company

How to Choose a Contractor
Choosing Heating and Air Conditioning Contractors

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Choosing a good contractor to install a new furnace or central air conditioner can be as important as the equipment you choose, because proper installation and maintenance is needed for the equipment to operate safely, reliably, and at maximum efficiency. Here are some suggestions for selecting a contractor, adapted in part from Contracting Business magazine.

If you already know a reputable heating and air conditioning contractor, that is a good place to start. If you don’t, friends and relatives in the area can often give you recommendations.
Most leading residential contractors belong to the Air Conditioning Contractors of America (ACCA) or the Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA). Both sites provide listings of heating, cooling, ventilation and refrigeration contractors in your area. Look for contractors whose technicians are certified by North American Technician Excellence (NATE) and/or partnered with ENERGY STAR.
A well-trained, up-to-date contractor will not try to discourage you from purchasing high-efficiency equipment. Less-qualified companies may not keep their employees current with the latest technology, and therefore they may discourage you from new and better designs.
A good estimator will do a survey of your home and base his or her proposal on a heat-load calculation (or cooling-load calculation for air conditioning).
Many furnaces and central air conditioners are not properly sized for the homes they serve, because of improper sizing years ago and/or energy efficiency improvements to the building since the old equipment was installed. Better contractors will not use your existing equipment to size your new heating or cooling system.
A good estimator should also ask about any heating or cooling problems you have had with your old equipment, and offer understandable explanations or solutions.
Using their heat-load and/or cooling-load calculations, good contractors should be able to estimate the annual operating costs (energy bills) for the equipment they are proposing for your home.
A good company will give you a written bid (or proposal) outlining the equipment to be installed, the work to be done, and the price, including labor costs.
We suggest you get estimates from multiple contractors, but try not to let the lowest price be the main reason for selecting a contractor. Better contractors may charge more, but they probably offer greater value. Be skeptical of extremely low bids; those contractors may not be including all routine services and customary warranties, or they may be trying to unload outdated or unreliable equipment.
Reliable contractors are professional. Their people are prompt and courteous. How a company treats you now reflects how they will treat you if there is a problem. They should have an office or shop facility, and they should not be ashamed to have you visit them. An office or shop is an indication that the company has been in business and intends to remain in business

Is Your Home Air Conditioner Ready for Summer?

Is Your Home Air Conditioner Ready for Spring and Summer?
by Statepoint ◊ Mar 16, 2012
Temperatures are on the rise, but that doesn’t mean your energy bill needs to increase, too. There are a number of ways you can keep your home cool and your energy bills in check this season.

Is your air conditioner operating optimally? If you have a central air conditioning system, it’s important to get it checked by an HVAC/R professional. Do some comparison shopping – special deals are easy to come by on seasonal preventative maintenance. Be advised, however, that the expertise of HVAC/R technicians can vary widely.

Though the HVAC/R industry does not require technicians to take mandatory competency tests, you can help ensure a job well done by opting for a technician certified by North American Technician Excellence (NATE), the nation’s largest independent, non-profit certification body for HVAC/R technicians. NATE-certified technicians are qualified to properly install and service equipment, which translates to maximum home comfort and energy savings.

Once you know your air conditioning system is running efficiently, there are several things you can do to keep energy bills to a minimum:

• Keep air conditioner units clear of plants and debris. Obstructing airflow will reduce the unit’s efficiency.

• Raise the thermostat. Each degree saves a percentage off your cooling energy bill.

• Check air filters every couple of weeks and change them at least twice during the season, or as directed by the manufacturer.

• Review last year’s energy bills. If your cooling costs are drastically higher this year, a qualified HVAC/R technician can help diagnose any problems.

Don’t forget, even the most eco-friendly, high-efficiency products and appliances can waste money and energy if they’re not installed, serviced, and maintained properly. By working with certified technicians, homeowners can have confidence that their HVAC/R equipment is delivering on the energy efficiency promised.

When scheduling an air conditioning check-up, be sure to request a NATE-certified technician. To find a qualified local contractor who employs certified technicians, look for the NATE logo or go to HVACRAdvice.com.

By making sure your air conditioning system is operating efficiently and by adopting a few energy-friendly habits, you can maintain a cool home while keeping energy costs down.

Win a new Apple iPad 4G

Schedule your air conditioning seasonal tune up in Fairfax, VA before April 15,2012 and be entered to win a new Apple iPad 4G. Just mention iPad when scheduling.Drawing held on April 30,212.  Only $79 per system which can be applied to any needed repairs, so your air conditioner will be ready for the HOT Washington, DC summers. We service from Leesburg, VA to Silver Spring, MD to Springfield, VA and everywhere in between.

Rebates up to $1250 or 36 months 0% financing

If your old air conditioner is in need for an upgrade to a new, more energy efficient model, let the experts at Donmar provide you with a FREE in home air conditioner replacement estimate. Now is the time to upgrade your AC system and take advantage of 36 month 0% financing* (call for details) and rebates up to $1250 along with other promotions as well. See our latest email: https://ui.constantcontact.com/visualeditor/visual_editor_preview.jsp?agent.uid=1109474685641&format=html&print=true . Don’t wait until the HOT weather is upon us here in Sterling, VA . Take advantage of pre season AC specials now.

Changing seasons Spring 2012

Changing seasons Spring 2012

Don’t wait until the temperature reads 90F in Bethesda, MD to know if you air conditioning system will work. Have one of our expert technicians perform a pre season inspection of your system and tune-up your AC system so it will be ready for the HOT Ashburn, VA summers. For only $79 per system, our technician will perform a thorough inspection and if any repairs are needed, you can apply this fee towards any repair costs. So whether you live in Fairfac, Va or Rockville, MD let Donmar Co., Inc be the company you “Make the Call for Comfort” to. Check out our AC system special offers while on our web site. We look forward to seeing you soon! https://ui.constantcontact.com/visualeditor/visual_editor_preview.jsp?agent.uid=1109474685641&format=html&print=true

Energy Star furnaces now eligible for a $1500 rebate from Virginia

Save on a new furnace in Sterling Virginia. Energy Star rated furnaces now eligible for a $1500 rebate from the Virginia Department of Mines, Minerals, and Energy.

Virginia’s new Super Efficient Home Appliance Rebate Program

Just announced on 10/24/11 is Virginia’s new Super Efficient Home Appliance Rebate Program which provides rebates of $1500 for qualifying HVAC replacement systems. Combine this with manufacturer rebates and federal tax credits for unprecedented savings. See our specials page or call for further details. New HVAC system replacements in Northern Virginia can take advantage of this excellent program.

Fast service for residential air conditioning repair

Fast service for air conditioning repair to bethesda and rockville. See our specials page for savings.

No service charge with repair on AC service in Ashburn, VA

No service charge with repair on AC service in Ashburn, VA. Fast service with NATE certified technicians.

$25 OFF any AC repair over $150 in Bethesda

Get $25 OFF any AC repair in Bethesda, MD. Fast service with NATE certified technicians.

        Donmar Co, Inc.| 22821 Silverbrook Center Drive STE 130 Sterling, VA 20166 | PHONE:703.435.0205
TOLL FREE: 1- 888-XL TRANE | FAX: 703-435-7658
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