Furnace is 15 years or older and repair calls are becoming frequent
Heating · Medina, WA
Furnace Replacement in Medina, WA
Most furnace replacements in Medina run $4,800 to $9,800 installed, depending on unit size and ductwork condition. SPS Pro Services has replaced furnaces throughout King County since 2017, and most Medina installs are completed in a single day with a technician on-site within 24-48 hours of your call.
Typical cost$4,800–$9,800
WarrantyWorkmanship warranty
AvailabilitySame-week visits
HoursMon–Fri 8am–6pm
Medina homes range from large lakefront estates to smaller 1950s ranch-style houses tucked near Evergreen Point, and both extremes affect what furnace makes sense. PSE supplies electricity and natural gas to Medina, and their rebate programs can offset part of a high-efficiency furnace upgrade. We size every replacement to your home's actual square footage and insulation level, not a generic chart, so you're not paying to heat air that leaks out through older single-pane windows common in pre-1980 Medina construction.
Local knowledge
What's different about furnace replacement in Medina
A few things about working in Medina shape how we quote and schedule this job.
Medina's larger custom homes near Lake Washington often have longer duct runs and higher ceilings, which can require a furnace one size up from what a standard load calculation suggests, especially in great rooms with lake-facing glass.
PSE natural gas rates and delivery charges in this part of King County mean a 96% AFUE furnace typically pays back its cost premium over a standard 80% unit within 6 to 9 heating seasons for a home Medina's average size.
Many Medina properties on well-established lots have furnace closets or crawlspace air handlers original to 1960s-70s construction, so replacement often includes venting and clearance updates to meet current code, not just a swap of the unit.
Symptoms we see daily
Signs you need furnace replacement in Medina
Uneven heating between rooms or a thermostat that won't hold temperature
Energy bills climbing with no change in how the home is used
Pilot light burns yellow instead of blue, or you notice odd smells when it runs
Banging, rattling, or grinding noises when the furnace starts up
No surprises
How a Medina furnace replacement visit works
1
On-site load assessment
We measure your Medina home's square footage, window exposure, and existing ductwork to calculate the correct furnace size rather than guessing from the old unit's rating.
2
Efficiency and rebate review
We walk through PSE rebate eligibility for qualifying high-efficiency models and show you the estimated annual gas cost difference between options before you decide.
3
Written estimate
You get a firm price within the $4,800 to $9,800 range, itemized for equipment, labor, permits, and any duct or venting work your home needs.
4
Removal and installation
Most Medina furnace replacements are completed in one day, including old unit removal, new unit setup, gas line and electrical connection, and startup testing.
5
Permit and final check
We pull the required King County permit, schedule inspection, and walk you through the new thermostat and filter schedule before we leave.
Flat-rate pricing
Furnace Replacement in Medina — what it costs
Conservative ranges for the Seattle metro. Your written quote is exact before work begins.
| Job | Typical price |
|---|---|
| In-home estimateExact flat quote for your home | Free |
| Standard furnace replacementTypical single-system job | $4,800–$6,470 |
| Mid-range furnace replacementHigher-capacity or multi-zone equipment | $6,470–$8,130 |
| Complex furnace replacementPremium equipment or difficult access | $8,130–$9,800 |
Prices reviewed by Sergei Petrov · July 2026. Parts availability can shift ranges — the quote you sign is final.
24/7 Emergency Line
Emergency dispatchNo heat at 11pm? We pick up.
Office hours are Mon–Fri, but the emergency line never closes. Call any hour and we dispatch a licensed tech across Greater Seattle.
Straight answers
Furnace Replacement in Medina — FAQ
How much does furnace replacement cost in Medina?
Most Medina furnace replacements run $4,800 to $9,800 installed. The range depends on furnace size for your square footage, whether ductwork needs modification, and if you choose a standard 80% AFUE unit versus a 96% high-efficiency model eligible for PSE rebates.
Does PSE offer rebates for furnace replacement in Medina?
PSE periodically offers rebates for qualifying high-efficiency gas furnaces installed in their service area, which includes Medina. Rebate amounts and eligible models change, so we check current offers at the time of your estimate and factor them into your total cost.
Will a new furnace lower my energy bills in a Medina home?
Homes near Lake Washington with larger square footage and older insulation often see the biggest savings from upgrading to a high-efficiency furnace, since PSE gas rates make the efficiency gap between an 80% and 96% AFUE unit add up over a full Puget Sound heating season.
How fast can you replace a furnace in Medina?
Most Medina jobs are scheduled within 24 to 48 hours of your call and completed in a single day. If your existing ductwork or gas line needs modification for the new unit, we'll let you know during the estimate so there are no surprises on install day.
Founder & Lead HVAC Technician, SPS Pro Services
EPA Section 608 UniversalNATE Core Certified14+ years in the trade
Reviews the pricing and service guidance on this page against SPS Pro Services's actual job records in Medina and across the Seattle metro.
Prices reviewed July 2026
Also in Medina
Other services our crew handles on the same routes.
Need furnace replacement in Medina?
Call (206) 427-8907 to schedule your Medina furnace replacement estimate, Monday through Friday, 8am to 6pm.