Do you service all HVAC brands in Issaquah?

Yes. Our technicians work on all major brands: Carrier, Goodman, American Standard, Trane, Lennox, Rheem, and others. If it’s installed in an Issaquah home, we can service it.

How quickly can you come out to Issaquah?

Most calls get a same-day appointment. For heating or cooling failures, we prioritize emergency slots — available 7 days a week, from 7 am to 10 pm.

Do you service the newer homes up in the Issaquah Highlands?

Yes. The Highlands and Talus were built from the early 2000s on, so most run modern gas furnaces or heat pumps, with some ductless and VRF in the mixed-use core. We service all of it. Because those neighborhoods sit higher and colder than the valley, we size the heating with the elevation in mind.

Do I need a permit for HVAC installation in Issaquah?

Yes. The City of Issaquah requires permits for equipment replacements and new installations. Issaquah runs its own permit office, so we pull it through the City of Issaquah Permit Center. You don’t need to do anything separately.

How much does HVAC installation cost in Issaquah?

It depends on the system type, home size, and existing infrastructure. A ductless mini split install typically runs $3,000–$8,000. A full furnace or heat pump replacement ranges from $5,000–$12,000. We provide a written estimate before any work starts — no obligation.

How often should I have my HVAC system serviced?

Once a year is enough for most systems. We recommend fall for heating equipment and spring for cooling — before the seasons where each system actually gets used.

Do you offer any warranties on installation work in Issaquah?

Yes. Installations come with up to a 12-year parts and labor warranty. If something fails after we leave, we come back and fix it at no additional charge.

Do you work on commercial HVAC in Issaquah?

Yes: rooftop units, exhaust fans, and split systems for offices, retail, and light industrial. We cover the Gilman Boulevard corridor, Pickering Place, and the Highlands’ Grand Ridge Plaza. Commercial calls go through the same scheduling line.

HVAC Issaquah: Expert Heating and Cooling Services

Name: Fuse Service: Heating & Air Conditioning | HVAC Contractor Seattle, WA
Price range: $$

HVAC Services in Issaquah, WA | Heating & Cooling Company

HVAC Repair & Installation in Issaquah, WA

Serving homeowners across Issaquah and King County — fast response, licensed technicians, and systems built for the Pacific Northwest climate.
Fuse Service provides full-service heating and cooling for homes and businesses throughout Issaquah, Washington. From ductless mini split installs up in the Highlands to furnace replacements in Olde Town’s older homes, our licensed technicians are available when you need them most.

We serve all of Issaquah including Olde Town, the Issaquah Highlands, Talus, Providence Point, Squak Mountain, Cougar Mountain, the Tiger Mountain foothills, Newport Way, and the neighborhoods along Lake Sammamish.

Why Fuse Service

Why Issaquah Homeowners Choose Fuse Service

Licensed & EPA-Certified Technicians
Every job is done by our own certified technician, not a subcontractor. Before we recommend anything, we assess the actual space: square footage, insulation, existing ductwork or the lack of it. That’s how you get a system sized correctly for your Issaquah home, whether it’s a hillside house on Squak Mountain or a newer place up in the Highlands.

Same-Day Availability
We keep slots open for same-day calls. If your heat goes out on a Tuesday morning, you shouldn’t be scheduling for Thursday. Winter up in the Issaquah Alps doesn’t wait, and neither do we.

Upfront Pricing
Before any work starts, you get a written estimate that breaks down equipment, labor, refrigerant lines, and electrical — everything. We don’t adjust the number after the job. What we quote is what you pay.

What We Delivered to Kirkland Homeowners

Jobs completed

290+

Issaquah homeowners served

Customer rating

5.0/5

Average across all reviews

Same-day service

94%

Of repair calls handled same day

Years in Issaquah

licensed & locally operated

Neighborhoods We Serve in Issaquah, WA

Olde Town, down on the valley floor along Front Street, is mostly older single-family homes. Some are mid-century, a few are much older, and plenty never had central cooling, so AC installs and mini split installs are the common call there. Up in the Issaquah Highlands and Talus, the homes are newer, built from the early 2000s on. They’re perched a few hundred feet above downtown, so they experience chillier nights and true snowfall when the valley sees only rain, and the original builder-grade systems are now entering their first ac replacement cycle.

Free In-Home Estimate on Any HVAC Installation in Issaquah

Book Now Call Us (425) 380-4300

HOW PROCESS WORKS

What Happens After You Call

You Call or Book Online

(425) 380-4300 or the 2-minute booking form — 7 days a week.

Dispatcher Confirms Your Window

Repair visits and free in-home estimates go into the same schedule. No-heat and no-cool calls get priority slots.

Tech Assigned, Truck Stocked

Your tech reviews the job details before heading out — you don’t re-explain everything at the door.

The Visit

For repairs: full diagnostic of the system. For new systems: in-home assessment and load calculation.

Clear Price Before Work

A fixed written quote either way — repair price after the diagnosis, install estimate after the assessment. Nothing starts until you approve it.

reviews

What Our Customers Say

Issaquah homeowners love choosing Fuse Service. See what our customers say about our 5-star HVAC service across King County!

      EXCELLENT  
   Based on 203 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   OLHA ZAHREBELNA 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had a great experience from start to finish. The AC installation was done professionally, everything was completed on time, and the team was friendly and easy to work with. Our new AC works perfectly, and we're very happy with the results. I highly recommend them to anyone looking for reliable and professional service. Thank you, guys!
  
 
      Posted on Google  
   
   Theresa Bonertz 
 
 
 
 Trustindex verifies that the original source of the review is Google. Quick to respond and come out, part in 2 days and fixed in 30 mins. Friendly service.
  
 
      Posted on Google  
   
   Eddie Dong 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a great experience with Fuse Service. They helped my tenant fix an AC unit that wasn't cooling properly. The entire process was incredibly smooth from start to finish. I will definitely use them again next time!
  
 
      Posted on Google  
   
   Shuanghui Sun 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had an aging HVAC system that suddenly stopped cooling. The team came out promptly, performed a thorough diagnosis, and clearly explained the issues they found, including the refrigerant leak and the risks associated with continuing to repair an older system. Rather than pushing a sale, they took the time to walk us through both repair and replacement options, which helped us make an informed decision to replace the system. Once we decided to move forward, the installation process was smooth and professional from start to finish. The crew arrived on time, paid close attention to details, protected the work area, and kept us informed throughout the project. They completed the installation efficiently, tested everything carefully, and left the area clean when they were finished. We especially appreciated their professionalism, clear communication, and honesty throughout the process. The new system is working great, and we are very satisfied with the quality of the work. We would definitely recommend them to anyone looking for HVAC repair or replacement services.
  
 
      Posted on Google  
   
   Eric Zou 
 
 
 
 Trustindex verifies that the original source of the review is Google. I would higly recommand Fuse Service! I have them replace and install heat pump, furnace, and water heater for my home. Their price is very good compared with other service provider. And the work quality is great! Alex came and installed all parts for me in two days. And he helped setup all stuff and answered my so many questions. Their office is also very responsive, usually respind to my messages and so many questions in a few hours. All good experiences!
  
 
      Posted on Google  
   
   Saeid 
 
 
 
 Trustindex verifies that the original source of the review is Google. We recently hired this company to repair a refrigerator at our hotel, and the experience was excellent from start to finish. The technician was professional, knowledgeable, and arrived on time. He quickly diagnosed the issue, explained the repair process clearly, and completed the work efficiently. What impressed us most was the quality of service and attention to detail. The refrigerator has been working perfectly since the repair, and the entire process was smooth and hassle-free. As a hotel, reliable equipment is critical to our daily operations, and we truly appreciate the prompt and professional service provided. I would highly recommend this company to anyone looking for honest, dependable, and high-quality refrigeration repair services. Thank you for a job well done!
  
 
      Posted on Google  
   
   Ihor Ihnatiev 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fuse Service is hands down the best HVAC company in the Seattle area. I needed a fast heat pump repair at my home in Kirkland, and their technician arrived the same day, fully prepared and extremely professional. He explained every step, checked the entire system, and had the unit running better than before. What I really appreciate is their honesty, fair pricing, and the quality of workmanship. It’s rare to find a local HVAC contractor that is this reliable in Seattle area. If you need HVAC repair, heat pump installation, or any home comfort service in the Greater Seattle Area, Fuse Service is the company you can trust. Highly recommended for anyone looking for a dependable local HVAC expert.
  
 
      Posted on Google  
   
   Rajarshi Singh 
 
 
 
 Trustindex verifies that the original source of the review is Google. Transparent quotes, great price, smooth scheduling, very responsive, great execution, perfect score.
  
 
      Posted on Google  
   
   Eric Wong 
 
 
 
 Trustindex verifies that the original source of the review is Google. Quick diagnosis and service of my mini split. Awesome expertise and customer service!

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RESIDENTIAL HVAC SERVICES IN Issaquah

Residential HVAC Repair & Installation in Issaquah, WA

Serving homeowners across Issaquah and King County — fast response, licensed technicians, and systems built for the Pacific Northwest climate.

COMMERCIAL HVAC SERVICES IN Issaquah

Full-Service Commercial HVAC in Issaquah

From rooftop units to exhaust fans, we handle every part of commercial heating and cooling for businesses in Issaquah.

Permitting is required in Issaquah for most commercial HVAC replacements and new installations. We handle all permits through the City of Issaquah.

Exhaust Fan Replacement

Learn More

Partners

Brands We Service

Areas We Serve

Fuse Service installs heat pumps across King and Snohomish County. Every install starts with an in-home visit and a Manual J load calculation. You get a fixed quote before any work is scheduled, and the price includes the equipment, install labor, permit, commissioning.

Seattle Learn more Bellevue Learn more Kirkland Learn more Redmond Learn more

Bothell

Renton

Snoqualmie

Shoreline

Sammamish

Issaquah Learn more

Woodinville

Vashon

Fall City

Algona

Mercer Island

Kent

Medina

North Bend

Maple Valley

Duvall

Ames Lake

Black Diamond

Federal

Auburn

Burien

Tukwila

SeaTac

Des Moines

Newcastle

Kenmore

Bothell

Edmonds

Lynnwood

Mountlake Terrace

Everett

Lake Stevens

Marysville

Monroe

Mukilteo

Snohomish

View All

FAQ

For most homes here, a heat pump is the straightforward answer. Issaquah winters stay mild enough that heat pumps run efficiently all season, though homes up in the Highlands and the mountain neighborhoods see colder overnight lows than the valley floor, which we factor into sizing. Puget Sound Energy offers rebates on qualifying electric systems, and high-efficiency equipment can also qualify for the federal 25C tax credit.

A lot of Highlands and Talus homes still run the furnace and AC they were built with, and 20-year-old equipment is living on borrowed time. If it’s working, we won’t push a replacement, but it’s worth an inspection so the failure doesn’t happen in January. Builder-grade ductwork from that era also tends to leak 20 to 30% of conditioned air; we test and seal ductwork as part of any major install.