Homes in Mercer Island
Mercer Island's housing mixes 1950s and '60s ramblers and daylight-basement homes with large newer builds and whole-house remodels. Waterfront and view homes often have big glass walls that make rooms swing hot in summer and cold in winter.
Many homes have been remodeled more than once, so it's common to find an older gas furnace serving the main floor, baseboard heat in a basement suite, and a bonus room that was never tied into the ducts. We look at the whole house and plan one system that keeps every room even.
What we usually recommend in Mercer Island
- Quiet inverter heat pumps for close-set homes where outdoor sound matters.
- Ductless mini-splits for basement suites, additions and rooms the ducts never reached.
- Hybrid heat pump systems for larger gas-heated homes that want a furnace as backup.
Utilities & rebates in Mercer Island
- Electricity
- Puget Sound Energy (PSE)
- Natural gas
- Puget Sound Energy (PSE)
Mercer Island homes get electricity and natural gas from PSE, so PSE's heat pump pathways apply: hybrid heat pumps for gas homes, conversion rebates for electric furnaces and baseboard, and income-qualified programs where eligible.
We confirm which rebates fit your home at the estimate, show the amount in your quote and file the paperwork after install.
Lake breezes, tight lots and quiet neighborhoods
Being surrounded by Lake Washington keeps the island a little milder than the Eastside plateau, but big windows and lake exposure still make summer cooling a real need. Lots are close together, so we place outdoor units carefully and favor quiet inverter heat pumps that run softly at low speed.
Permits in Mercer Island
Mercer Island requires mechanical permits for heating and cooling replacements and electrical permits for new circuits, and outdoor equipment needs to meet local noise rules at the property line. We pull the permits, plan placement and coordinate inspections.
What customers say
From our Google reviews · 4.8★ across 200+ reviews
"Excellent service. Purchased with Seattle HVAC new heat pump installation cause previous died after 15 years of usage. Quick process from estimate to get scheduled. They sent me a text to let me know ETA of technician. Crew arrived on time as expected, very knowledgeable, easy to work with. Highly recommend!"
"Very appreciate hard work of Seattle Heating and Cooling. They installed furnace and heat pump for our house plus provided a free duct cleaning service. Viktor and Daniel cleaned after themselves and were very friendly to us. Also appreciate the communication from the stuff in advance of appointment times. Great experience."
Mercer Island heat pump & HVAC questions
Will a heat pump be too loud for my neighbors?
Modern inverter heat pumps are quiet, and we plan placement and sound before install so the outdoor unit meets local noise rules and doesn't bother anyone next door.
My basement suite has baseboard heat. Can it be part of the new system?
Yes. A ductless head or a small ducted unit can bring the basement into the same comfort plan, often with PSE rebates for moving off baseboard.
What rebates apply on Mercer Island?
Mercer Island is PSE electric and gas territory. Depending on your current system, PSE's hybrid, electric-conversion or income-qualified rebates may apply. Try the rebate calculator for an estimate.