Furnace is 15 years or older and needs frequent repairs
Heating · Bothell, WA
Furnace Installation in Bothell, WA
Furnace installation in Bothell typically runs $4,800-$9,800 installed, depending on unit size and ductwork condition. SPS Pro Services installs and replaces furnaces for homeowners across Bothell, in both the King and Snohomish County sides of town, with most jobs completed in a single day.
Typical cost$4,800–$9,800
WarrantyWorkmanship warranty
AvailabilitySame-week visits
HoursMon–Fri 8am–6pm
Bothell's damp Pacific Northwest winters put steady, low-grade stress on furnaces year-round rather than the hard freezes other regions see. Crawl space moisture near the Sammamish River corridor and long stretches of 55-60% humidity corrode heat exchangers and rust out cabinets faster than dry-climate units ever experience, which is why furnace age and rust condition matter as much as BTU output when we size a replacement here.
Local knowledge
What's different about furnace installation in Bothell
We run service calls in Bothell every week — the same patterns come up again and again.
Bothell straddles King and Snohomish counties, so your service territory (PSE in the King County side, Snohomish County PUD in parts north) can affect available high-efficiency rebate programs we help you apply for.
Many Canyon Park and Norway Hill homes built in the 1970s-90s still run original ductwork sized for smaller furnaces, so we check duct capacity before recommending a bigger BTU unit.
Homes near the Sammamish River bottomland see higher ambient humidity in crawl spaces, which speeds up rust on older furnace cabinets and heat exchangers we regularly find during inspections.
Symptoms we see daily
Signs you need furnace installation in Bothell
Uneven heating between rooms or floors
Energy bills rising without a change in usage
Furnace short-cycles, turning on and off repeatedly
Unusual noises, a burning smell, or a yellow pilot flame
No surprises
How a Bothell furnace installation visit works
1
On-site load calculation
We measure your Bothell home's square footage, insulation, and window exposure to size the furnace correctly instead of guessing off the old unit's rating.
2
Ductwork and venting check
We inspect existing ducts and vent lines for damage or undersizing, common in older Bothell homes near downtown, before finalizing the install plan.
3
Written estimate
You get a clear quote covering equipment, labor, and any duct or electrical work needed, with no surprise line items added later.
4
Removal and installation
We remove the old furnace, install the new unit, and connect gas, electrical, and ductwork, typically finishing in one day for standard swaps.
5
Startup and walkthrough
We run the system through a full heating cycle, check for proper airflow and carbon monoxide safety, and walk you through the thermostat and filter schedule.
Flat-rate pricing
Furnace Installation in Bothell — 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 installationTypical single-system job | $4,800–$6,470 |
| Mid-range furnace installationHigher-capacity or multi-zone equipment | $6,470–$8,130 |
| Complex furnace installationPremium 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 Installation in Bothell — FAQ
How long does a furnace installation take in Bothell?
Most straightforward replacements take about a day. If your home needs ductwork modifications, common in older sections of Bothell near the downtown core, plan for an extra half day to a full additional day.
Do I need a permit for furnace installation in Bothell?
Yes, furnace replacements typically require a mechanical permit through the relevant jurisdiction depending on whether your address falls in the King County or Snohomish County side of Bothell. We pull the permit and schedule the inspection as part of the job.
Will Bothell's humidity affect my new furnace?
It can, especially for units installed near crawl spaces close to the Sammamish River lowlands. We recommend sealed combustion furnaces in these areas since they resist moisture-related corrosion better than open-combustion models.
What size furnace do I need for my Bothell home?
It depends on square footage, insulation, and duct condition, not just the size of your old unit. We run a load calculation on-site since many Bothell homes built before the 1990s were originally fitted with oversized or undersized furnaces for the ductwork present.
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 Bothell and across the Seattle metro.
Prices reviewed July 2026
Also in Bothell
Other services our crew handles on the same routes.
Need furnace installation in Bothell?
Call (206) 427-8907 to schedule a furnace installation estimate for your Bothell home, Monday through Friday 8am to 6pm.