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Services We Offer

AC/Heating Service and Maintenance

The best time to service your air conditioner is before it is actually needed. A planned schedule of preventive maintenance reduces the chance you will face a breakdown when you least expect it; it also saves your budget from unexpected expenses. At W. Williams, our main goal is to keep you and your household comfortable. Client satisfaction is the heart of our business. When you choose W. Williams as your air conditioning provider, you have peace of mind in knowing that we are here to handle everything.

Air Sterilization

W. Williams has found that the most successful way to handle system mold is through Ultraviolet (U.V.) germicidal lights. We install the Fresh-Aire UV APCO in the ductwork of your central air system, which is designed to help reduce airborne odors, toxic chemical vapors, germs and mold in your home. The APCO system (Advanced Photocatalytic Oxidation) is a new type of air purifier. The germicidal UV light and activated carbon cells inside APCO make it effective at reducing volatile organic compounds. Residential ultraviolet units are proved to be effective in killing mold and bacteria quickly. The UVC energy attacks the organism’s DNA and either destroys it or prevents it from multiplying.

Ductwork Adjustment

W. Williams will quickly and efficiently build any necessary parts necessary to improve or repair the air ducts inside of your home or business.  We have the capabilities to construct whatever is needed in less than a day in order to get you back on the road to comfort as quickly as possible!

Home Safety: Carbon Monoxide Detectors

Carbon Monoxide Detectors are essential.  W. Williams can provide placement recommendations as well as installation of the most effective detectors to keep your home safe from dangerous poison.


Quality attic and wall insulation can help tremendously save energy costs. Based on an evaluation of your home or business the W. Williams team will determine which type of attic insulation services would best reduce your costs. W. Williams offers many types of insulation services, including windows, garages, attics, sound for the residential community, as well as commercial companies.


Whether you are looking for a simple pre-frabricated box or a custom-built cold room, our trained W. Williams team will find an affordable solution that works for you! We can also fabricate and customize walk-in coolers and freezers to meet all of your refrigeration needs.

Whole House Temperature Zoning

Allow our trained W. Williams team to do an overall analysis of your home to determine efficient zoning for your ductwork. We can help divide your home’s ductwork into specific zones that can be controlled independently for a much more efficient and comfortable living environment.

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Comments Off on What is your Shade of Comfort?
  oct1   A Mitsubishi Electric Zoned Comfort Solution lets you make comfort personal. W.Williams can help you find your shade of comfort by calling 409-722-3370
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Comments Off on Ductless vs Window Unit
While looking for a way to cool one or two rooms, it's natural to consider a window air conditioner. For Decades,  window air conditioners have been the solution of choice under such circumstances. They're cheap, relatively easy to install and effective. Lately, however, ductless air conditioners, which are also known as mini split systems, have been giving window units a run for their money. Some people still them out due to the fact that they're more expensive because they don't realize much they can save in the long run. Should you buy a Mini Split or  Window Unit? If your home is uncomfortably warm, you'd probably like to cool it down as quickly as possible. A window unit is the path of least resistance because it can be purchase locally and installed quickly. Is it really the best option, though? If you own you home and plan to stick around for a while, a mini split system is probably a much better option. Regardless of what you ultimately decide, you should give plenty of thoughts to the advantages and disadvantages of both units. The main things you should consider before buying a portable air conditioner or a ductless system include: SECURITY - No matter how it's installed, a window air conditioner reduces the security of your home. While it's significantly safer to install one in an upstairs window, you  are still making it easier for burglars to gain entry to your home. With a Ductless system, We only need to drill a 3" holes in the outdoor walls. Refrigerant lines, Power cables, and drain lines are drawn though it to link outdoor and indoor units. You can rest assured that the security of your home won't be compromised in any way. CONVENIENCE - When you use a window unit, you sacrifice an entire window. The room receives less natural light, and you no longer have the option of opening the window to let in fresh air. You can avoid this problem by opting for a ductless system instead. This option allows you to stay cool and comfortable without having to give up an entire window. FLEXIBILITY - While a window AC unit can effectively cool a single room, it can't do much else. Advanced models sometimes have extra features like multiple fan speeds and digital displays. Some even have remote controls. Many Ductless systems have remote controls too, though, and they have additional perks that you won't find with window units. Most notably, mini split systems can be set up for zoned climate control, which means that you can adjust temperatures in specific rooms. These systems are known as multi-split systems. As an added bonus, indoor  and outdoor units can be positioned in a variety of ways to achieve optimal comfort, efficiency and aesthetic appeal. EFFICIENCY - In terms of energy efficiency, ductless systems are the hands-down winners. Some window units are ENERGY STAR rated, but they still don't come close to achieving the kinds of SEER ratings you'll find with Mini split Systems. COMFORT - Window units often seem to have no happy Medium. They make rooms too hot or too cold.  Mitsubishi ductless systems have specialized sensors that detect small changes in temperature and adjust their speeds accordingly. They are able to this because they have inverter compressors that are capable of operating at various speeds. What's even better is that ductless systems can also provide heat. The most innovative models feature reversible heat pumps that can add warm air for outside just as easily as they can remove warm air from inside. All this achieved with minimal amount of electricity, so energy bills remain reasonable. NOISE - Most Window AC Units are Noisy. Some models are better than others, but  you're not going to find one that is completely unnoticeable. Ductless systems make noise too, but they operate a lot more quietly. If noise is a big concern for you , you'll be much happier with a ductless system. PRICE - You may be wondering "How much do Mini Split systems Cost?" and may be dismayed to learn that they are much more expensive than window units. However, they also last for years and use a lot less electricity. They deliver superior comfort for a lot less money over time, so you should be able to recoup the upfront cost without any trouble. As tempting as it may be to opt for the initial affordability of a window unit, the truth is that you will pay more in the long run. Your Electricity usage will soar, so the cost of your energy bill will too. Most window units aren't built to last very long either, so you can expect to replace yours before too long.    
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may1   Are you looking for an efficient, low-cost solution to satisfy room temperature troubles? No matter what size space you’re trying to heat or cool, discover energy efficient savings, eco-friendly solutions, while keeping the temperature just right inside your home. Imagine the possibilities with a ductless temperature controlled system. Central air and other similar ducted systems are catch-all heating solutions that lack the precision and control of their ductless counterparts. When a forced air system works to cool or heat your home, you have little control over where that air is going. This means that vacant rooms are getting the same amount of energy and service as your favorite spots in the house.   It’s wasteful, inefficient and expensive to cool or heat the basement storeroom the same way you cool or heat the kitchen or bedroom. But a ducted system doesn’t allow for that kind of precise control. So the cold or warm air flows throughout your home and you see the results of this inefficiency on your utility bill every month. Call W.Williams today to find out more about comfort solutions for your home at 409-722-3370 or visit      
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April3     The central heating and cooling systems that are traditionally used in homes are called split systems because they typically have indoor and outdoor components. A mini split air conditioner also has indoor and outdoor components, but it takes up a lot less space than traditional heating and cooling systems. Another key difference is that it doesn't rely on ducts to deliver heated and cooled air.

How Do Mini Split Air Conditioners Work?

Mini split air conditioners work similarly to other types of air conditioners in that they compress and expand refrigerant to pull away heat and moisture from the air. There are some pretty significant differences between mini split air conditioners and other types of air conditioners, and they include:
  • Heat Pumps - How are ductless air conditioners, or mini split air conditioners, capable of heating and cooling without needing large indoor and outdoor units? The secret lies in energy-efficient heat pumps. They take advantage of heat's tendency to move from warm areas to cool areas. In doing so, they are capable of heating and cooling while using a lot less energy.
  • Connections - As with a traditional heating and cooling system, mini split systems have indoor and outdoor components. In this case, however, the indoor and outdoor units are connected by suction lines, which draw away condensate, refrigerant lines, which facilitate the transfer of warm air, and power lines, which keep everything humming along.
  • Indoor Units - With a mini split air conditioner, outdoor units are mounted on outside walls. There are also compact indoor units, which may be mounted on floors, ceilings or high up on walls. These units have blowers that deliver heated and cooled air to a specific area. You can't understand how mini split air conditioners work without understanding that no ducts are involved at all.

Where to Buy Mini Split Air Conditioners

Call us today for more information at (409)722-3370
Comments Off on How Does Ductless Air Conditioning Work?
April2         Ductless split systems provide targeted heating and cooling comfort when conventional central HVAC equipment is too costly or impractical to install. Widely adopted in Europe and Southeast Asia, ductless technology continues to gain popularity in the U.S. as consumers and businesses look for cost-effective alternatives to window units, PTACs (packaged terminal air conditioners) and inefficient ducted systems.

Basic Components of a Ductless System

So, how does ductless air conditioning work? In many respects, a ductless mini split operates in a similar manner to its ducted counterpart. In the refrigeration cycle, low-pressure gas is transformed into high-pressure gas by the action of a compressor. The heat is dissipated into the outdoors by the action of a forced air fan. The refrigerant then becomes a high-pressure liquid, and it is again changed into a low-pressure liquid by a metering device at the evaporator coil. Heat energy from the indoor air is absorbed by the refrigerant, and the resulting cooler air is pushed into the living area by the internal blower. The resulting low-pressure gas is moved through the suction line back to compressor, and the cycle is repeated again. There are two main elements in a ductless split system installation:

Outdoor Unit

The outdoor condensing unit houses three primary components including:
  • The Compressor: The compressor is the heart of any air conditioning system. It is also the most expensive individual part. The device condenses low-pressure gas into high-pressure gas, so the thermal heat transfer process is completed more efficiently.
  • Condensing Coil: A lattice-like structure comprised of numerous aluminum fins, the condensing coil cycles hot refrigerant and accommodates its conversion from a high-pressure gas to a high-pressure liquid.
  • The Fan: The fan draws air through the condensing coil and helps dissipate the stored heat energy into the outdoor environment.

Indoor Unit

How do ductless air conditioners work? It is important to recognize the distinct advantages of spilt system indoor fan coil units. Conventional central air conditioners employ a single air handler, blower and evaporator coil, which is usually installed in a garage or equipment closet. A complex air distribution network provides an avenue for the delivery of conditioned air into each room of the building from a single point of origin. Unfortunately, ductwork is often inefficient, restrictive, dirty, leaky and noisy. Ductless indoor units include a fan and evaporator coil in the same enclosure. Each unit provides point of use air conditioning wherever it is installed. Stylish cabinets are available in wall mount, duct mount and ceiling cassette varieties. Whether used in single or multiple zone configurations, the indoor units can be strategically positioned to heat and cool one room or an entire building. The versatility and convenience of ductless technology completely eliminates the need for inefficient ductwork. When comparing ductless ac vs. central ac vs. window unit, ductless split systems are quieter, more efficient and offer greater levels of comfort.

Mini-Split versus Multi-Split

In multi-room applications, does ductless AC work? In fact, ductless air conditioners are an excellent choice for both single and multi-zone areas. Systems can be installed in a variety of different configurations based on the following two platforms: Mini-Split: A mini split includes a single indoor fan coil and outdoor condenser. This combination is especially effective for cooling an individual room that has limited load requirements. If there is sufficient space to set multiple condensing units outdoors, several systems can be used in tandem to provide cooling for an entire building. This type of installation provides a separate temperature control for each unit. If there is a malfunction in one system, the rest will continue to provide conditioned air to the unaffected areas. Multi-Split: A multi-split system employs one condensing unit that is connected to several indoor air handlers. In this configuration, an indoor unit is selected and equipped with a thermostat. When there is a call for cooling, all of the units are activated simultaneously. This configuration is cost effective but should only be used in buildings where each room has a similar cooling load. For true zoning in a multi-split application, a single condensing unit must be equipped with separate compressor circuits that are piped to each individual air handler. Every zone is controlled by a different thermostat, so the occupants can tailor the temperature to their individual preference. A Mitsubishi air conditioner designed for multi-split operation can include up to eight different zones.

Ductless Heat Pump How it Works

In the cooling mode, a ductless heat pump operates in essentially the same way as an air conditioner. The inclusion of a reversing valve allows the refrigerant to flow in either direction, which provides both heating and cooling from a single ductless system. When considering the installation of a ductless heat pump, it is important to understand the relationship between heating efficiency and the outdoor ambient temperature. In general, a heat pump operates most effectively in mild climates that rarely reach the freezing point. An electric heat strip can be installed to provide supplemental heat when necessary.

Where Ductless is needed

Ductless air conditioners and heat pumps offer exceptional flexibility and can be modified to fit numerous applications. In addition to existing buildings, mini splits are appearing more frequently in new construction where the low profile of ductless equipment is very compatible with modern architectural design.

An Air Conditioner Small Enough For:

  • Server Rooms
  • Condos
  • Basements
  • Garages
  • Attics
  • Buildings Requiring Supplemental Cooling

An Air Conditioner Quiet Enough For:

  • Hospitals
  • Churches
  • Bedrooms
  • Recording Studios
  • Meeting Rooms

An Air Conditioner Powerful Enough For:

  • Office Buildings
  • Multi-Tenant Buildings
  • High Rise Buildings
  • Hotels
  • Data Centers

High Efficiency Perfect for Everyone

Ductless split systems offer exceptional versatility, low noise and enhanced levels of comfort. Through the use of exclusive inverter technology, ductless air conditioners have the highest SEER ratings in the industry. Many consumers ask, “How much does ductless AC cost?” By eliminating the need for an air distribution network, a ductless air conditioner saves substantially on labor and installation costs. Mitsubishi contractors invite you to explore the many benefits that an efficient ductless split system can provide.
Comments Off on What’s a SEER?
SEER stands for Seasonal Energy Efficiency Ratio.
Every system (composed of an outdoor compressor bearing unit that matches with an indoor unit) is evaluated and then given an Energy Efficiency Rating. This is a lot like the miles per gallon rating that your car gets, but instead of gasoline it is a number that is used to calculate your energy savings. The more cooling/heating a system puts out for each unit of energy it consumes, the higher rating it will receive. The higher the efficiency rating of your system, the less energy it will consume…that means lower utility bills and less of an impact on the environment.
So shouldn’t I just go with a higher SEER value?

At first glance you would think that the higher the SEER value the better, however that’s not always the case. You will definitely be saving more energy when operating a higher SEER system, but you might not be saving money overall. Typically, the higher the SEER value the higher the cost of the system (all other things being the same). There are really two determining factors for you when choosing the SEER value for your system: the length of time you plan on being in your home and your preference to be environmentally friendly. If you have the conviction to be as green as possible no matter what the cost is then you want to go with as high of a SEER value as possible. We wish everyone could choose this option. However, the reality is most people want to be environmentally friendly but must also live within a budget. The good news is that as technology advances our heating and cooling will require less and less energy.

So how do I determine which SEER value is for me?

The determining factor in finding the right SEER value for your HVAC system is how long you plan on living in your current house. Follow along with this example to understand this better:

The minimum SEER value allowed is 13. That will serve as our base. Here are the annual operational costs of an average family for various SEER levels. These values will change depending on a number of factors including your utility company and how high or low you keep your indoor temperature among other things.

13 SEER = $805.00
14 SEER = $747.50
16 SEER = $632.50
23 SEER = $448.50

Now at first glance it looks like a no-brainer. The 23 SEER system costs nearly half as much to operate as the 13 SEER system. However, the 23 SEER also costs significantly more (sometimes twice as much) as the 13 SEER system. So let's just say for the sake of the example that a 13 SEER system costs $4000 and a 23 SEER system costs $8000. You would need to be living in your home for over 11 years before you began to save money on that system. So if you are planning on living in your current home long-term then this would be a great investment for you, especially on year 11 when you start saving almost $400 a year! However, if you are living in a starter home and plan on moving in a few years, while a higher SEER system will add value to your home for resale, you might want to consider a lesser SEER value for upfront savings. Call W.Williams today to find out more home at 409-722-3370