Furnace is 15 years or older and repair calls are becoming frequent
Heating · Granite Falls, WA
Furnace Replacement in Granite Falls, WA
Furnace replacement in Granite Falls typically runs $4,800 to $9,800 installed, depending on unit size and ductwork condition. SPS Pro Services installs and replaces furnaces throughout Granite Falls and greater Snohomish County, with most jobs scheduled within a few days and completed in a single day for straightforward swaps.
Typical cost$4,800–$9,800
WarrantyWorkmanship warranty
AvailabilitySame-week visits
HoursMon–Fri 8am–6pm
On service calls around Granite Falls, we see a distinct pattern: many homes here run on propane furnaces since natural gas lines don't reach most rural properties, and units installed in crawl spaces often show rust and corrosion from ground moisture years before they'd fail in a drier location. We also replace a fair number of oil-to-gas conversions in older farmhouses where the original ductwork was sized for a smaller system, causing uneven heating and premature part failure.
Local knowledge
What's different about furnace replacement in Granite Falls
Every area we serve is different — in Granite Falls, these three factors matter most.
Snohomish County PUD serves Granite Falls, and rural power lines here see more outage-related restarts, which can trip furnace ignition control boards more often than in denser grid areas closer to Everett.
Many Granite Falls properties run on well water and septic systems with crawl space furnaces, where added humidity and mineral buildup speed up heat exchanger corrosion compared to homes on municipal utilities.
Granite Falls sits closer to the Cascade foothills and runs colder overnight than nearby Lynnwood or Marysville, so furnaces here log more heating cycles per winter and tend to wear out a few years sooner.
Symptoms we see daily
Signs you need furnace replacement in Granite Falls
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 Granite Falls furnace replacement visit works
1
Home visit and load calculation
We measure your home's actual heat loss rather than just matching the old unit's size, which matters most in older Granite Falls homes with added additions or upgraded insulation.
2
Fuel source and ductwork check
We check whether you're on propane, oil, or gas, and inspect ductwork and crawl space conditions for rust, gaps, or sizing issues before recommending equipment.
3
Equipment selection and written quote
You get a written estimate within the $4,800 to $9,800 range showing equipment cost, labor, and any crawl space or ductwork repairs needed.
4
Removal and installation
We disconnect and haul away the old furnace, then install the new unit, running new gas, propane, or electrical connections as needed for code compliance.
5
Startup, testing, and walkthrough
We fire up the system, check gas pressure or propane regulator settings, verify airflow at the registers, and walk you through the thermostat and filter location before we leave.
Flat-rate pricing
Furnace Replacement in Granite Falls — 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 Granite Falls — FAQ
Does SPS Pro Services install propane furnaces in Granite Falls?
Yes. Since natural gas isn't available on many rural Granite Falls properties, we regularly install propane furnaces sized to your home's actual heat loss rather than just matching the old unit's rated output.
How long does a furnace replacement take on a rural Granite Falls property?
Most jobs are still done in a single day, but homes with long gravel driveways or tight crawl space access can add an hour or two for equipment staging. We factor that into your scheduled arrival window when we quote the job.
Can you replace a furnace in a Granite Falls crawl space with rust or moisture damage?
Yes, this is one of the most common issues we find on service calls in the area. We check the vapor barrier and crawl space ventilation as part of the replacement, since installing a new furnace over an unresolved moisture problem just leads to the same corrosion again within a few years.
Do you serve areas near Granite Falls too?
Yes. We install and replace furnaces throughout Snohomish County, including Arlington, Marysville, Monroe, Everett, and Lynnwood, in addition to Granite Falls and the surrounding rural areas.
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 Granite Falls and across the Seattle metro.
Prices reviewed July 2026
Also in Granite Falls
Other services our crew handles on the same routes.
Need furnace replacement in Granite Falls?
Call SPS Pro Services at (206) 427-8907 to schedule a furnace replacement estimate for your Granite Falls home.