New Construction

New Construction HVAC Services

At Gasline Mechanical Inc., we take pride in providing top-notch HVAC services for new construction projects. We can handle residential, industrial, and commercial properties. As a full-service design-build HVAC contractor, we have the expertise and capabilities to handle projects of any size and complexity in North King County and Snohomish County, WA and surrounding areas.

Our team of skilled professionals is dedicated to delivering 100% perfection in every installation we do. From the initial design phase to the final commissioning, we work closely with builders, architects, and property owners to ensure that the HVAC system meets their specific needs and exceeds their expectations.

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Why Choose Gasline Mechanical Inc.

Residential heating and cooling services, including installation of energy-efficient systems.
Custom sheet metal fabrication to ensure optimal performance and durability.
Home generator solutions to provide reliable backup power for uninterrupted comfort.
Plumbing services designed to foster a healthier and more efficient indoor environment.

Contact Gasline Mechanical Inc. For All Of Your HVAC and Plumbing Needs

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Comprehensive HVAC Solutions

We offer a wide range of HVAC services for new construction projects, including:

Design and Engineering: Our experienced engineers use the latest technology and best practices to design efficient and reliable HVAC systems that are tailored to the unique requirements of each project.
Sheet Metal Fabrication: With our state-of-the-art fabrication facility, we can produce custom ductwork and other sheet metal components to ensure a perfect fit and optimal performance.
Piping and Gas Systems: We have the expertise to handle the largest gas systems in the state of Washington, ensuring safe and reliable operation.
Installation and Commissioning: Our skilled technicians install and commission the HVAC system with precision and care, ensuring that it operates at peak efficiency from day one.

Waterproof Flashings and Retrofits

In addition to new construction, we also specialize in retrofits and waterproof flashings. Our team has the knowledge and experience to seamlessly integrate new HVAC systems into existing structures, ensuring a perfect fit and optimal performance.

We understand the importance of proper flashing and waterproofing to protect the integrity of the building and prevent water damage. Our technicians use the latest techniques and materials to ensure that the HVAC system is properly sealed and protected from the elements.

Unmatched Ductwork Capabilities

At Gasline Mechanical Inc., we take pride in our ability to handle ductwork of any size and complexity. No one in our area can match our expertise and capabilities when it comes to large-scale ductwork installations.

Our team has the skills and equipment to fabricate and install ductwork that is specifically designed for each project, ensuring optimal airflow and energy efficiency. We use the latest technology and best practices to ensure that the ductwork is properly sized, sealed, and insulated for maximum performance.

Training and Education

As a leader in the HVAC industry, we are committed to sharing our knowledge and expertise with others. We offer training to other dealers on how to install zoning systems, ensuring that they have the skills and knowledge to provide the same level of quality and service that we do.

We believe that by sharing our knowledge and experience, we can help raise the standard of HVAC services in North King County and Snohomish County, WA and surrounding areas and beyond. It’s a matter of pride for us to be able to contribute to the growth and development of the industry.

The Gasline Mechanical Inc. Difference

At Gasline Mechanical Inc., we are committed to providing the highest level of quality and service to our customers. We understand that every project is unique, and we take the time to listen to our customers and understand their specific needs and goals.

We always ask “How can we make it right?” and go above and beyond to ensure that our customers are completely satisfied with our work. Whether it’s a small residential project or a large commercial development, we approach every job with the same level of dedication and attention to detail.

When you choose Gasline Mechanical Inc. for your new construction HVAC needs in Snohomish, Everett, Mill Creek, Monroe, and Woodinville, WA and surrounding areas, you can trust that you are getting the best service and expertise available. Contact us today to learn more about how we can help bring your project to life.

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Customer Reviews

Testimonials:Aeronautical Firm located in Chicago, Seattle, and North Carolina
As a large commercial aerospace company, we have a large variety mechanical and HVAC systems. Gasline Mechanical has been our go to contractor for many projects in severalof our buildings. With projects ranging from small to large scale ductwork jobs, to large scale cooling tower replacement jobs, to custom stainless steel humidification system work, Gasline has always met or exceeded our performance expectations and completed all of the projects on budget and on time.

Brad L.

As the owner of Fusion Hot Yoga, located in Bothell, voted “Best yoga studio” in the “Best of Western Washington” contest, you can imagine how important “good” heat is to us! We heat our room to 105 degrees (!) and I’ll tell you what, heating a space to 105 that is built for over 100 people practicing yoga at once, well it’s simply not an easy task! Yet Gasline has managed to do it! We are currently running at 105 degrees due to Gasline’s ingenuity, and perseverance. I can’t recommend Darren and Steve enough! These guys are amazing. If you need to heat something, trust Gasline and trust Darren and Steve. These guys won’t let you down. I hesitate to endorse anybody, as I want to make sure It’s a valid and founded endorsement. And I take using my platform for endorsement very seriously… And in my experience Gasline now deserves my endorsement. So come feel the heat! And call Gasline for all your heating needs! If they can heat us, they can heat you! Thank you Steve and Darren! Jason Willey, owner Fusion Hot Yoga.

Jason W.

Many Years ago Gas line Mechanical installed our Heating system that was quite involved with 3 Floors. The Basement was left unfinished, But they installed a Duct system that could be extended for future use. After 18 Years I upgraded to a new High efficiency Furnace and Air conditioning. The new contractor admired the original installation and how well it was done. This prompted me to write these comments. I remember the original installer and how well they did their work. I believe the owners name was John. I want to thank him for a good Job they did all these years later.

Klaus H.

A PSE inspector determined our 15-year-old furnace was emitting high levels of CO and capped off the gas line to our furnace. A big thanks to the inspector to catching that! John Anderson and his crew from Gasline Mechanical ordered and replaced the furnace within 5 days. We appreciate his fast response (especially considering the issues with shipping delays and the icy roads). This is the third time we’ve worked with Gasline Mechanical. They’ve been great to work with.

Judy F.

Wakefield / The Evans Company
Ed and I were talking today about the salon and Gasline’s part in this project and other past projects. You guys are the best. From John on down, your company always does great work and your crew is first rate and a pleasure to work with. You guys are truly full service!!! Thank You!!Thought You Should Know,

Pat T.

Goodman Real Estate
I have worked with John Anderson and his employees at Gasline Mechanical for many years. Gasline can create heating, cooling and air-exchange systems in detail and to exact specifications from the drawing board to your construction site.

The Gasline design team can either quote & build from an engineered plan or create a design build system and are competitive in either arena. Once complete they have a very good warranty or maintenance team that can keep your equipment fine-tuned.

They understand how a system functions can either enhance or hamper the comfort of our buildings tenants. In addition to Gasline’s expertise in design, the install team has a great attitude and they clearly take pride in their work. I haveworked with many contractors and few can perform at Gasline’s level.You cannot make a better choice.

Bruce M.

I just want to thank you again for responding so quickly to the issue at ConAm. I know the owner appreciates it to. I really enjoy working with you and your guys and want you to know how much you are appreciated by all of us at Venture.

Jen C.

Venture General Contracting, LLC
Robbie and Mike were a big help yesterday in coordinating the Phased Occupancy Opening here(Othello Station North). Wehad to get down and get some details worked out and the knowledge between those two was extremely helpful! I would not be able to do it without these guys!

Chad W.

Wakefield / The Evans Company
It has been my great pleasure to work with Gasline Mechanical on a number of projects. We have worked together for many years. I can count on their professionalism and teamwork to hold to schedule while providing a high quality finished product. From new construction to maintaining the equipment after our spaces are occupied, Gasline comes through with viable solutions to our most challenging HVAC needs. I look forward to continuing our working relationship and would highly recommend Gasline Mechanical.

Ed B.

Residential Customer
GASLINE was great to work with from start to finish. The decision was hard to put in A/C but now that I have, I haven’t regretted it one bit. Darren and the guys were easy to work with and if I hada question, it was answered. They took care of everything for US!! they were Professional, on time, the work was meticulous and complete. This is a quality company and the staff reflected that in their care for the work they performed!!

Ryan & Melissa S.

Venture General Contracting, LLC
To our Office Manager, Julie: Thank you so much for being so wonderful! It’s been a pleasure working with you. I look forward to many more projects to come.

Galyna S.

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