Air Conditioning Services in Mercer Island, WA

Your Full-Service Partner for AC Services in Mercer Island, WA

Every home and building has different cooling needs. That’s why we offer a complete range of air conditioning services — from fast AC repairs to brand-new installations and energy-saving maintenance plans.

Fast and Thorough Air Conditioning Repair

Is your AC blowing warm air? Making strange noises? Shutting off before the room cools down?

We’ve seen it all. And more importantly, we’ve fixed it all. Our technicians are trained to handle a wide variety of air conditioning repair situations with precision and care. No shortcuts, no guesswork — just smart troubleshooting backed by decades of experience.

We respond quickly because we know how disruptive AC problems can be. Our trucks are stocked with the parts most systems need, which means we can often complete your repair on the same visit.

Typical issues we address include:

• Low refrigerant or leaks
• Frozen evaporator coils
• Malfunctioning thermostats
• Tripped breakers or blown capacitors
• Clogged drain lines
• Fan motor or compressor issues

We explain everything we find in clear terms, and we’ll never pressure you into unnecessary work. Your comfort, safety, and trust mean more to us than a quick sale.

Professional Air Conditioning Installation & Replacement

Sometimes, the best fix is a fresh start. If your system is older than 12-15 years, frequently breaks down, or can’t keep up with current demands, it may be time for an air conditioning replacement.

Installing a new system isn’t just about picking a unit off a shelf. It’s about engineering a solution that works for your specific space and lifestyle. Our air conditioning installation process begins with an in-depth home evaluation — we look at your layout, sun exposure, insulation quality, and even how your household uses different rooms.

From there, we recommend high-performance systems that balance cooling power with efficiency. We install top-rated brands and ENERGY STAR® systems that are whisper-quiet, user-friendly, and built to last.

Benefits of modern AC installation & replacement include:

• Lower energy bills
• More consistent cooling in every room
• Smart-home compatibility
• Quieter operation
• Improved indoor air quality

Our team handles everything from permitting to clean-up, and we stay available long after the job is done.

Preventative AC Maintenance That Pays Off

One of the best ways to protect your investment — and your comfort — is with regular air conditioning maintenance & tune-ups. Think of it as a wellness visit for your cooling system: small adjustments now that prevent bigger headaches later.

Our AC maintenance services are meticulous and comprehensive. We check every wire, filter, and moving part to make sure your unit is clean, safe, and operating at peak efficiency.

An annual tune-up typically includes:

• Cleaning condenser coils and drain lines
• Checking refrigerant levels
• Testing system pressure
• Inspecting electrical connections
• Calibrating the thermostat
• Replacing air filters
• Lubricating motors and fans

Customers who stay on top of AC maintenance enjoy fewer breakdowns, longer system lifespans, and better cooling all summer long.

Ductless Mini-Splits: Cool Where You Need It

Not all homes are built with central ductwork. And not every room needs the same level of cooling. That’s where ductless mini-splits shine.

Ideal for additions, guest rooms, studios, or any space without ducts, mini-splits provide zoned cooling with amazing efficiency. These systems allow you to cool only the rooms you’re using, saving money while increasing comfort.

Gene Johnson installs, services, and replaces all types of ductless systems. Whether you’re upgrading from a window unit or seeking a quieter, more targeted cooling solution, we can help you select the right mini-split for your home.

Already have one? We also offer full ductless mini-split repairs to keep your system running smoothly year after year.

Heat Pumps: Year-Round Comfort for the PNW

If you’re interested in combining heating & cooling into one sleek system, heat pumps may be the perfect fit. Especially popular in Mercer Island’s moderate climate, heat pumps work efficiently year-round, keeping you warm in the winter and cool in the summer.

Our heat pump services cover everything from installation and system design to diagnostics and seasonal maintenance. We’ll help you understand how heat pumps compare to traditional HVAC options and whether your home is a good candidate for conversion.

As energy prices rise and sustainability becomes more important, heat pumps are quickly becoming one of the smartest upgrades you can make.

Emergency AC Repairs When You Need Them Most

Life on Mercer Island is peaceful — until the air conditioning quits during a holiday barbecue or a July weekend. Fortunately, Gene Johnson provides responsive emergency AC repair for urgent situations.

Whether you wake up sweating or return from vacation to a stifling home, we’ll be there quickly to assess the problem and restore comfort.

Emergency or not, we uphold the same high standards of professionalism, transparency, and craftsmanship.

More Than Just a Contractor — A True Home Service Partner

What sets Gene Johnson apart isn’t just what we do — it’s how we do it. We’re not here to upsell you or treat your home like a number on a spreadsheet. We approach each project as neighbors who care about doing the right thing.

Why Mercer Island Residents Choose Us

• Deep Local Roots: We’ve been serving King and Snohomish Counties since 1976. We know the codes, the neighborhoods, the climate, and most importantly — the people.
• Trusted Technicians: Every team member is licensed, background-checked, and trained to deliver exceptional HVAC services with professionalism and courtesy.
• Upfront Pricing:  You’ll never be caught off guard. We explain every step and cost in plain language, so you can make informed decisions without stress.
• Comprehensive Services: From plumbing and electrical to HVAC repair and installation, we cover it all. That means no coordinating between multiple companies or juggling appointments.
• Award-Winning Service: We’ve earned our reputation one home at a time. Many of our customers stay with us for years, and refer their neighbors and friends.

Cooling for Homes and Small Businesses Alike

We serve both residential and light commercial clients throughout Mercer Island, WA. Whether it’s an elegant waterfront home, a retail space, or a small business office, our team has the knowledge and flexibility to meet your specific needs.

We offer:

• Commercial AC installation
• Preventative cooling services for offices and shops
• Emergency repair with minimal downtime
• Maintenance plans to protect your investment

It’s Time to Expect More From Your HVAC Company

When you choose Gene Johnson Heating, Cooling, Plumbing & Electrical, you’re getting more than a service provider. You’re gaining a partner in home comfort — one who listens, explains, and delivers.

We’re proud to offer top-tier home services in Mercer Island, WA, and we look forward to helping you enjoy every season in comfort.