We are ready to service your Heating and Cooling problems. Same Day service.

KW Mechanical : Serving DC MD VA . Heating and cooling



Thermostat Replacement in Gaithersburg

Furnace Repair &  REplacement

We can install the simplest easy-to-use thermostats, or the more popular set-back thermostats.

We can provide you with thermostats that can be set from your phone, your computer or from across the world.

Our installers will explain and demonstrate the system to you, and be available to answer any questions that may come up later.

Heat Pumps

Heating  in Gaithersburg Maryland, Installed & Repaired

Maryland Heat Pump repair.

 A heat pump transfers heat outside when it is hot, and inside when it's cold. Despite sounding simple, the choice of which pump to buy is extremely important.

Let KW Mechanical help you to navigate the complexities of unit selection.

Heating and Air Conditioning 

Heat Pump and AC Repair

Air Conditioning Repairs


Furnace Repair in MD

HVAC in Gathersburg

Is your home in the winter  as dry as the Sahara?  Static electric a problem?

We can solve that.




Dehumidifier HVAC]

Furnace Repair and Replacement

Bigger is NOT always better.  Proper sizing of the HVAC system is critical to dehumidification.  An oversized system will cool down the house faster, sure, but it may force short-cycling, and will not let the extra humidity properly precipitate out.

If you want to sweat like its Orlando in July,  move there. 
If you want comfort, call KW Mechanical today. 

Furnaces and Heat Pumps

HVAC near Me

Air Cleaners

Air Cleaners
Allergies,  Gluten Sensitivity

Furnace Repair in Gaithersburg
FUrnace Replacement MD

Allergies?  Dust bunnies?  Gluten Sensitivity?

All our systems are entirely gluten-free.

No peanuts were used in their production either.

These were NOT tested on animals, no dolphins were snared in nets.

Hybrid Systems

Hybrid HVAC Systems 

Gaithersburg HVAC

Air Conditioning in  Maryland

 What is a hybrid HVAC system?


With hybrid HVAC, the system's computer selects either an electrically-powered heat pump or a furnace that burns natural gas, propane or fuel oil. What does this mean for you as a homeowner? Cheaper energy bills and more effective comfort in the winter and summer!


Hybrid HVAC systems are sometimes referred to as "hybrid heating systems" because they provide the greatest energy savings during the heating season. Here's how the energy-saving technology works: When it's chilly outside, heating is provided by an air-source heat pump that consumes electricity.

The heat pump uses a refrigerant compound to "pump" heat from outside to inside. But when it gets really cold outside (below freezing), an air-source heat pump can no longer work efficiently. That's when the fossil fuel furnace takes over.

Pay a little more upfront, get repaid for decades!

In return for paying a little extra for a hybrid HVAC system, you can save 30%-50% on HVAC costs over the course of a year. That's why many homeowners are interested in stepping up to hybrid HVAC.  

KW Mechanical is skilled in selection and installation of these systems.