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Serving Kent, Issaquah, and surrounding areas

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Kent,WA – (253) 343-0000 | Issaquah, WA – (425) 472-(HVAC) 4822

Small-duct high-velocity heating and cooling is designed to adapt to older craftsman homes, New custom homes or renovations with small spaces without compromising comfort, design or efficiency. The air from High Velocity system is delivered quietly and seamlessly when is properly installed. The supply tubes are designed to be as efficient as possible and to minimize sound which brings decibels levels to the equivalent of a soft breeze. Due to the nylon inner core material and insulation, which both absorb the sound created from the air, you home can be comfortable without the noisy sounds of a traditional system.

Trust in the Experts for Your Systems

Feel The Difference when you choose World Class Services. Family-operated and veteran-owned, we provide excellence of workmanship, quality of equipment and results that exceed expectations. Contact us online or by calling (253) 343-0000 for Best Value Guarantee, upfront pricing and detailed proposals. As a Preferred Contractor, we offer exclusive utility company and manufacturer related rebates. We are your experienced and expert source of a full suite of high-velocity HVAC services across Kent, Des Moines, Renton, Federal Way, Burien, & Covington, WA.

High Velocity HVAC Service from World Class Services

Here are a few of the key benefits of high-velocity heating and air conditioning systems:

Space-saving Design

Flexible, insulated mini-ducts (just 2” in diameter) are able to be fished through walls, floors, and closets to minimize space requirements and avoid the need for major renovation.

Uniform Temperature Distribution

The unique ductwork is specially designed to promote consistent air distribution, providing uniform temperatures in every room.

Energy Efficiency

High-velocity systems can be more energy-efficient, reducing the cost of heating and cooling your home.

Indoor Air Quality

Incorporating advanced filtration technologies such as HEPA filters or UV lights, the system helps to remove airborne contaminants, allergens, and pathogens from the indoor environment.

Quiet Operation

The smaller, flexible ducts are insulated to help dampen sound transmission, minimizing disruptive noise levels.

Humidity Control

Quick Installation & Retrofits – The compact nature simplifies the installation process and allows for retrofit without compromising architectural integrity.

High Velocity HVAC Service, High Velocity HVAC, HIgh Velocity Heating System & High Velocity Air Conditioning System Kent, WA, Federal Way, WA, Renton, WA, Des Moines, WA, Burien, WA & Covington, WA

High Velocity Air Conditioning System in Kent, WA | HIgh Velocity Heating System Federal Way, WA | High Velocity HVAC Renton, WA

High Velocity HVACHigh Velocity Air Conditioning SystemHigh Velocity HVAC ServiceHIgh Velocity Heating System ∴ Covington, WA ∴ Burien, WA ∴ Federal Way, WA

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Residential & Commercial


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Residential & Commercial

Air Conditioning

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Residential & Commercial

Ductless HVAC

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Residential & Commercial


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Water Heaters

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Electrical Services


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Electrical Services

EV Charge Ports

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Electrical Services

Panel Changes

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Indoor Air Quality

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Duct Cleaning

Customer Reviews
What They're Saying
Kelly C.

It was a joy to have Devan service our furnace. It was really cool to have him text confirm with his picture. His professional demeanor, accountability and communication was wonderful! It was also appreciated having pictures of our job and adequate description of what was done for our records… excellent! I can’t remember ever having that nice of a visit to provide a service. Looking forward to seeing him again for our next service needed.

Marie L.

World class definitely leaves up to their name, as they provide top notch world class service. They contact you at every process, great at communicating changes . Sending the picture of who is arriving was a great way to ease and feel safe. Devan was respectful of our home (wore booties without being asked), he was respectful of our time and was great at explaining what’s needed and not needed. I would highly recommend world class for heating and cooling needs.

Cameron P.

The technician was very communicative, told me when he was going to arrive and diagnosed the issue quickly and efficiently. He was very respectable and clear and concise on what was needed and was more than happy to hire him for this repair. Too many times I am asked to fill out forms for a review but I was eager and happy to do so following my visit by the tech and he represented WCS very well.


Great customer service from both Cyndi and Devan since start to finish. I booked a furnace maintenance and Cyndi was responsive and eager to answer all of my questions. Devan was on time, professional and did a great job with the maintenance service. He was willing to answer all of my questions and was not afraid to share his knowledge, insights and expertise. It truly felt like he was here to help rather than trying to sell, which I really appreciated.

Joshua S.

While no one wants an unplanned HVAC issue, we were delighted with World Class Services! Devan was immensely helpful, and communicated each step between our first call and final resolution. I’ll be using him and his team again, and have even recommended World Class to some family and friends in the neighborhood!

Michael L.

Brandon come out to our place to clean out our dryer vent. He was great and did a fantastic job cleaning our vent, which has five elbow joints between the dryer and the outside. The louvers on the vent cap outside were barely moving before he came, but they were flapping wide open after he was done (see videos). My wife and I are very pleased with the work he did. We’ll be using World Class Services again!

Greg B.

I highly recommend World Class. Our gas furnace went out and they were able to schedule an appt for the same day. Devan was great and got us back up and running quickly at a fair cost without even needing to replace a part. I will definitely use them again for future furnace maintenance and repair.

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