A 14-year-old condenser couldn't keep up with the home's upstairs bedrooms.
Replaced it with a right-sized, variable-speed system matched to the home's actual square footage, which evened out the upstairs/downstairs temperature gap.
Jun 2026
AC Repair & Install in Mercer Island, WA
Fast central air repair when it fails, plus right-sized, high-efficiency new installs that keep the whole home cool through Pacific Northwest heat waves.
AC work on Mercer Island depends on where the home sits — shoreline Point homes see condensers corrode and fail faster from the marine air, which drives more repair calls there than elsewhere on the island, while ridge-top houses near Rotary Park more often need a first-time install sized to the site's duct capacity and condenser pad options.
01 · THE PROBLEM
Symptoms we see every week in Mercer Island
- Current AC is 10+ years old or needs frequent repairs
- Home never cools evenly in summer
- Rising summer electricity bills
- Adding central air to a home with existing ductwork
02 · THE PRECISION SOLUTION
Spec'd to your Mercer Island home
We size every system to your actual demand — not a one-size guess. Here's what a typical ac repair & install includes:
| Efficiency | Up to 22 SEER2 |
|---|---|
| Capacity | 1.5–5 tons |
| Compressor | Variable-speed |
| Lifespan | 12–15 years |
Recent Mercer Island jobs
Real ac repair & install calls in Mercer Island
Two AC units -- the downstairs system wasn't cooling the rooms.
Diagnosed non-engaging condenser fans on both units and gave the homeowner a written repair plan.
Tech: Andrew · Jun 2026
Pulled from our own job log. No customer names, addresses, or contact info shown, by design.
LOCAL DETAILS
Getting to Mercer Island
About 10 minutes from our Bellevue office via I-90, traffic depending. Permits for ac repair & install work in Mercer Island go through the City of Mercer Island Development Services Group -- we pull it, schedule the inspection, and hand you the closed-out paperwork.
Mercer Island also runs a separate shoreline permit process (SHL) for work within its shoreline jurisdiction, generally within 200 feet of the lake -- equipment placement for an outdoor condenser or heat pump on a shoreline lot can need that review in addition to the standard mechanical permit. We handle that coordination; a lot elsewhere on the island only needs the standard permit.
Local notes
AC Repair and Installation in Mercer Island: what's different here
Elevation on the island runs from about 18 feet at the lakefront to almost 400 feet near the ridge, so equipment placement, condensate drainage and access change from block to block. Many older Mercer Island homes were built without cooling. Adding AC there means checking whether the ducts in homes around East Seattle can move enough air, or using a heat pump or ductless system instead.
Permits and inspections
A replacement AC or condenser usually needs a mechanical permit; most repairs do not. Mechanical and plumbing permits in Mercer Island go through the City of Mercer Island Permit Center. When the work needs a permit, we pull it, schedule the inspection and leave you the paperwork.
Utilities and rebates
Mercer Island homes get electricity from PSE, and most have PSE natural gas. Mercer Island homeowners may qualify for utility, state or federal rebates. We point you to the current programs for your address before you sign.
Where we work in Mercer Island
Our job records show more than 80 completed jobs for Mercer Island customers across ZIP codes 98040. We take ac repair and installation calls in East Seattle, the North End, the South End, First Hill and the rest of Mercer Island.
03 · THE OutToday GUARANTEE
Work we stand behind
10-year parts warranty, 2-year labor, and permit closure documentation provided.
Book this serviceRecent Mercer Island jobs
Real AC calls in Mercer Island
Home needed a new air conditioner.
Installed a new high-efficiency 17 SEER air conditioning system.
From our job records · May 2023
From our older job records. No customer names, addresses, or contact info shown.
Ready to book?
Get a same-day quote from a real technician in Mercer Island.
AC Repair & Install in Mercer Island FAQs
Straight answers for homeowners in Mercer Island.
Who issues the permit for ac repair and installation in Mercer Island?
Mechanical and plumbing permits in Mercer Island go through the City of Mercer Island Permit Center. For ac repair and installation, we apply for the permit, book the inspection, meet the inspector on site, and give you the final sign-off for your records.
Is it better to add central AC or a heat pump in Mercer Island?
In most Mercer Island homes a heat pump is the better buy, because it cools in summer and heats in winter. Mercer Island homeowners may qualify for utility, state or federal rebates. We point you to the current programs for your address before you sign.
Which Mercer Island neighborhoods do you cover?
Our job records show more than 80 completed jobs for Mercer Island customers across ZIP codes 98040. We take ac repair and installation calls in East Seattle, the North End, the South End, First Hill and the rest of Mercer Island. Call (425) 615-5000 for same-day service.
How much does ac repair & install cost in Mercer Island?
Every home and every job is different, so we don't publish prices or guess over the phone. A technician diagnoses the problem first and gives you a written price before any work begins, with no surprises. Fair, honest pricing is one of the things our customers mention most in their Google reviews.
How fast can you get to Mercer Island?
We dispatch same-day across Mercer Island for most ac repair & install calls, 24 hours a day, seven days a week. Call (425) 615-5000 or schedule online.
Are you licensed for this work in Mercer Island?
Yes. OutToday is a WA L&I registered contractor (#OUTTOL*832B4) and every technician is background-checked and insured.
Is the work guaranteed?
Yes. Parts are covered for 10 years and labor for 2 years, and you get the closed-out permit paperwork for your records.
Do Mercer Island homes need anything extra for this permit?
Only on shoreline lots. If your home is within about 200 feet of the lake, an outdoor condenser or heat pump can need a shoreline (SHL) review on top of the standard mechanical permit. We coordinate that for you. Homes elsewhere on the island need only the standard permit.
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