Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Fast, Reliable Heat Pump Installation Across Medina
Heat pump installation in Medina, WA typically runs $3,500 to $7,500 for a complete system, and most jobs take one to two days. The right system for your home depends on a proper load calculation, not a guess based on square footage. That is where we come in. Dalton Heating & Air installs and services heat pumps across Medina, and we show up inside the stated window with the price in writing before any work starts. Call (361) 306-9515 and a live person answers, 24/7.
Medina homes are not cookie-cutter. A 1920s brick four-square near the historic square, a 1990s two-story off Evergreen Point Road, a mid-century rambler near Overlake Golf and Country Club, a newer build on Fairweather Bay, a property tucked along Bill Point with basement-level walkouts. Same zip code. Very different heat pump requirements. We have installed units in every one of these neighborhoods, and our crews know the local housing stock the way you know your own street.
Why Dalton Heating & Air Is Medina’s Preferred Heat Pump Installation Company
We run under The Garrison Standard, a set of rules that has governed how this company has operated since 2003. The Garrison Code is simple: arrive inside the window, put the price in writing before starting, do the job by the book, leave the site clean, and stand behind the work for a full year. No exceptions for Medina jobs, no exceptions for weekday afternoon calls, no exceptions when the weather turns cold and everyone else is booked solid.
Medina homeowners call us because the word gets around. When a neighbor on Lake Washington Boulevard has a good experience, the next call comes from two streets over. Marco Benitez leads our team, and he holds every technician to the same standard on every single job. Our techs are background-checked, uniformed, and factory-trained to service nine major brands, including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard.
Every repair we perform carries a written guarantee. If the fix fails within the guarantee period, we return at no charge. That is not a promotional offer. It is the way we have done business for over two decades, and it applies to heat pump work in Medina the same as anywhere else we serve.
Heat Pump Maintenance in Medina
Heat Pump Maintenance in Medina keeps your system running clean and efficient through both heating and cooling seasons, and it should happen once a year, ideally in early fall before the shoulder season turns cold. A maintenance visit on a Medina heat pump typically runs $80 to $200. We check the outdoor coil for debris, clean the condensate drain, inspect electrical connections, verify refrigerant pressures, and measure airflow across the indoor coil. We also test the reversing valve operation and confirm the defrost board is cycling correctly. Then we give you a written report of what we found.
Homes near Fairweather Bay or the lake get more moisture exposure than homes upslope toward the golf course. That moisture accelerates coil corrosion and algae growth in the drain pan. A maintenance visit catches that before it becomes a water leak or a frozen coil in January.
What the Tune-Up Covers
A standard tune-up on a heat pump includes coil cleaning, drain line flush, capacitor testing, and a full system performance check under load. We measure temperature split at the supply and return, confirm the system is pulling the right amperage, and listen for bearing noise. If anything is off, we show you the reading and give you a written price for the fix before we touch it.
When Medina Homeowners Schedule Maintenance
Most Medina homeowners book maintenance in September or early October, right before the first real cold snap. Fall is when a marginal heat pump shows itself, whether that is weak heating output, a reversing valve that sticks, or an auxiliary heat strip that runs too often. Getting ahead of it beats waiting for a no-heat call on a cold night. Call (361) 306-9515 to book a maintenance visit in Medina.
Geothermal Heat Pump Installation in Medina
Geothermal Heat Pump Installation in Medina uses the stable ground temperature below the frost line to heat and cool your home, and depending on the loop configuration and drilling conditions, the installed system typically runs higher than an air-source heat pump, often in the $3,500 to $7,500 range for the unit itself plus additional ground loop costs determined by site survey. The payoff is efficiency that stays flat regardless of outdoor air temperature. Medina’s relatively mild but damp climate makes geothermal a fit for homes with enough yard space for a horizontal loop field or the budget for a vertical bore.
Larger lots around the golf course and properties near the lake with wide, open yards often have room for horizontal loops. Tighter lots closer to the historic square usually require vertical bores. We evaluate your site before we quote anything. No guessing, no template pricing.
Horizontal Loop Fields
A horizontal geothermal loop sits in trenches about six feet down. The excavation disrupts your yard for a week or two, but the installed cost is generally lower than vertical boring. We coordinate the excavator, the loop installation, and the indoor unit, so you are not managing three different contractors.
Vertical Bores and Smaller Lots
When a Medina lot cannot accommodate trenches, vertical boring goes straight down, typically 150 to 300 feet per bore. The drilling cost is higher, but the footprint is minimal and the loop runs deeper, where ground temperature is most stable. We pull the permits, handle the inspections, and commission the system properly, including a full refrigerant charge verification before we leave.
Trusted Brands We Service in Medina
We install and service Trane, Lennox, Goodman, and Rheem heat pumps, along with the other five major residential brands under our factory training. Because our techs are trained on all nine platforms, we do not push one brand on a Medina homeowner who already has a brand preference. We stock common replacement parts for Trane and Goodman systems specifically because they are so common in Medina’s existing housing stock. When a part needs to come from the distributor, our Seattle-based parts network generally gets it to a Medina job site same-day or next morning, not three days from now. That matters when your heat pump goes down in February.
Common Heat Pump Installation Problems We See in Medina Homes
- Oversized systems from skipped load calculations. Medina’s housing stock swings from 1920s brick four-squares near the historic square to 1990s two-story subdivisions with fully finished basements. Sizing a heat pump off square footage alone, without a load calculation, is the single biggest miss we see. A system that is even one ton too large short-cycles in the shoulder season, runs the blower constantly in summer, and never reaches its rated efficiency because it never runs long enough to dehumidify. That means a damp, clammy house in spring and fall, even when the temperature reads right.
- Restricted airflow on older duct systems. Many Medina homes built before 1980 have ductwork sized for a furnace, not a heat pump. Heat pumps move more air at lower temperatures, which means static pressure matters. If we skip the static pressure check, a new high-efficiency unit fights the old ducts, the compressor works harder, and the system dies years early. We measure static pressure on every install before we quote the job, and if the ducts need corrections, that goes in the written estimate up front.
- Refrigerant charge never verified at commissioning. A factory-charged heat pump installed on a long lineset will lose capacity and efficiency before the first winter if nobody verifies the charge. It is a fifteen-minute step that gets skipped more often than it should. On a Medina home with a long lineset run from a ground-level condenser to an attic air handler, that skipped step costs real money on every bill.
- Thermostat misconfiguration after install. A variable-speed heat pump needs a communicating thermostat or a properly configured smart stat to run the way it was designed. When the thermostat is left in single-stage mode, the system ramps to full speed for every call, which defeats the entire point of the variable-speed compressor. We calibrate the thermostat during installation and confirm the staging logic before we wrap up.
Pricing for Heat Pump Installation in Medina, WA
Here is what heat pump work in Medina actually costs, in writing:
| Service | Typical Range in Medina |
|---|---|
| Heat Pump Installation | $3,500 – $7,500 |
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| Tune-Up | $80 – $200 |
A complete Heat Pump Installation price depends on the unit size, the ductwork condition, whether you are adding a new line set or reusing the existing one, and whether your current electrical panel can handle the new load. A straightforward swap on a home near Evergreen Point Road with good ductwork and an existing heat pump runs on the lower end. A full replacement with duct modifications and a panel upgrade runs higher. We give you a written, fixed price before any work starts. No estimates that “might” change once the job is underway. Call (361) 306-9515 and we will schedule a free estimate at your Medina home.
We Also Serve Cities Near Medina
Dalton Heating & Air serves Medina plus the surrounding Eastside and Seattle metro. Our crews dispatch to Bellevue, Kirkland, Mercer Island, and Seattle from our Seattle office, and we coordinate scheduling so the same technician who quotes your job is the one who installs it. If you are just outside Medina city limits, call and confirm, and we will get you on the schedule.
Serving Medina, WA - Our Local Coverage Area
We’re based in the Medina area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Heat Pump Installation in Medina
Yes, every heat pump installation in Medina starts with a full manual load calculation, not a square footage rule of thumb. Medina’s housing stock swings from 1920s brick four-squares near the historic square to 1990s two-story subdivisions with fully finished basements, so sizing is driven less by square footage than by whether the basement is conditioned. A load calculation that ignores a finished basement can oversize a system by a full ton and leave the house short-cycling in shoulder season. We run the calculation on every install, and we show you the numbers before we quote the unit. Call (361) 306-9515 to schedule a free load calculation at your Medina home.
A complete heat pump installation in Medina typically runs $3,500 to $7,500 for the unit and installation work, depending on capacity, brand, and ductwork condition. A basic swap with an existing line set and good ducts lands on the lower end. A variable-speed unit with new ducts, a panel upgrade, and electrical work lands on the higher end. Every quote is a written fixed price, so the number you see is the number you pay. Call (361) 306-9515 and we will give you an exact number for your home.
Yes, and this is actually a common setup in Medina, called a dual-fuel system. The heat pump handles the mild fall and spring weather, and the furnace takes over on the genuinely cold nights when outdoor temperatures dip below the heat pump’s efficient range. It works well in Medina’s climate because our winters are relatively mild, but we do get overnight dips into the low 20s. A dual-fuel system gives you the heat pump efficiency for most of the year and the furnace backup when you want it.
For a Medina home, a SEER2 rating of 15 to 18 is a solid middle ground for most houses, with variable-speed units pushing into the 19 to 22 range. SEER2 is the new federal efficiency metric that replaced SEER in 2023, and it measures real-world performance including duct losses. The number translates to actual bill impact: a jump from SEER2 14 to SEER2 18 typically cuts cooling-season electric use by 20 to 25 percent on the same home. In a climate like Medina’s where the shoulder seasons run long, that efficiency pays back faster than in a short-summer market.
A heat pump in Medina should get a maintenance visit once a year, ideally in early fall before the heating season begins. The $80 to $200 visit catches coil corrosion, drain blockages, stuck reversing valves, and low refrigerant before they turn into a no-heat call on a cold night. Homes near the lake or Fairweather Bay tend to accumulate coil debris faster than homes upslope, so those systems benefit from a spring checkup as well. Call (361) 306-9515 to schedule maintenance, and we will give you a written report of what we found and what it costs to fix anything that is failing.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving Medina and the surrounding Eastside.







Before
After
Before
After
Before
After