Heating Installation & Replacement in Kirkland, WA
Furnace, heat pump, hybrid, boiler or ductless? We help you choose the right system for your home and install it cleanly, with the city permit handled.
- Two or three options, each priced upfront
- Sized to your home, not a guess
- Old equipment removed and recycled
Heating installation in Kirkland, explained in 30 seconds
Green House Plumbing and Heating installs and replaces home heating systems in Kirkland: gas furnaces, heat pumps, hybrid dual-fuel systems, hot water boilers and ductless mini-splits. We are based at 12040 98th Ave NE in Kirkland (98034), work Monday to Saturday from 7 am to 9 pm, and offer same-day appointments when available.
Choosing a new heating system is a big decision, so we start with your home, not a product. We look at your existing system, ducts, gas and electrical service, which rooms are uncomfortable and whether you want cooling too. Then we explain two or three options in plain language, each with an upfront price.
Every install includes the City of Kirkland mechanical permit, removal of the old equipment and a full startup test.
Planning a new heating system? Start here
A few minutes of prep makes your estimate faster and more accurate.
- Find the age of your current system. Look for the date or serial number on the label inside the furnace door or on the outdoor unit.
- Note the problem rooms. Which rooms are too cold in winter or too hot in summer? That shapes the design.
- Decide if you want cooling. A heat pump adds air conditioning with no second system.
- Check your electrical panel. A photo of the panel helps us see if a heat pump needs extra electrical work.
- Book before it fails. Replacing on your schedule costs less stress than an emergency swap on the coldest night.
Signs it is time for a new heating system
If you see two or more of these, start comparing options.
Furnace is 15 to 20 years old or more
- Likely cause
- Parts wear out and efficiency drops with age.
- How we fix it
- We compare the cost of repairs over the next few years with a new system.
You call for repairs every winter
- Likely cause
- Multiple worn parts failing one after another.
- How we fix it
- We price a replacement so you can compare it with the next repair.
Heating bills keep rising
- Likely cause
- Low efficiency, leaky ducts or electric baseboard heat.
- How we fix it
- A heat pump or high-efficiency furnace often cuts energy use.
Some rooms never get warm
- Likely cause
- Undersized system or poor duct design.
- How we fix it
- We size the new system correctly and fix duct problems or add a ductless head.
Cracked heat exchanger or venting problem
- Likely cause
- A furnace that can leak combustion gases.
- How we fix it
- We shut it down safely and quote a replacement.
You want air conditioning too
- Likely cause
- Separate furnace and window units, or no cooling at all.
- How we fix it
- A heat pump or hybrid system gives you both.
Furnace, heat pump, hybrid or ductless?
Here is how the main options compare for a typical Kirkland home.
A gas furnace usually makes sense when
- You already have gas service and good ducts
- You want strong heat on the coldest nights
- You do not need cooling, or will add AC separately
- Your budget favors the lowest upfront cost
A heat pump usually makes sense when
- You want heating and cooling from one system
- You have baseboard heat or no ducts (ductless)
- You want lower energy use
- You are replacing an old furnace and an old AC together
| System | Best for | Good to know |
|---|---|---|
| High-efficiency gas furnace | Homes with gas and ducts | Strong heat, needs separate AC for cooling |
| Ducted heat pump | Homes with ducts that want heat and AC | One system for year-round comfort |
| Hybrid (dual fuel) | Homes keeping gas as backup | Heat pump most days, furnace on cold nights |
| Ductless mini-split | Baseboard heat, additions, no ducts | Room-by-room control |
| Hot water boiler | Homes with radiators or radiant floors | Quiet, even heat, no ducts |
Heating installation services in Kirkland
The right system, installed cleanly and to code.
Furnace installation and replacement
High-efficiency gas furnaces sized to your home. See furnace installation.
Heat pump installation
Ducted and hybrid heat pumps for heat and AC. See heat pump services.
Ductless mini-splits
Single and multi-zone systems for homes without ducts.
Boiler installation and replacement
Hot water boilers for radiator and radiant floor homes.
Thermostats and zoning
Smart thermostats and controls set up for your new system.
Permits and haul-away
City permit, inspection, and removal and recycling of old equipment.
What Kirkland homeowners should know before replacing heat
Local climate, homes and rules all shape the right choice.
Our climate favors heat pumps
Kirkland winters are usually mild and wet, with occasional cold snaps and windstorms that knock out power. A heat pump can handle most of the year's heating here and also cools during summer heat waves like June 2021, when Seattle reached 108°F.
Older homes, mixed systems
Many homes in Norkirk, Market, Houghton and Lakeview have older furnaces or baseboard heat. Newer homes and townhomes often already have ducts that suit a heat pump.
Permits protect you
Kirkland requires a mechanical permit for new or replacement heating equipment, and an inspection confirms the gas, venting and electrical work. We handle all of it.
Plan before winter
Fall is the busiest season. Booking a replacement in late summer or spring gives you more choice of equipment and install dates.
Heating installation across Kirkland neighborhoods
Sources: Kirkland mechanical permit checklist, HistoryLink, June 28, 2021 heat wave, IRS on the 25C credit.
How a heating installation works
From estimate to first warm night.
- In-home visitWe look at your system, ducts, gas and electrical service.
- Options and priceTwo or three choices, each with an upfront price.
- PermitWe pull the Kirkland mechanical permit.
- InstallOld equipment out, new system in, usually in 1 to 3 days.
- Startup and inspectionFull test, settings explained, city inspection scheduled.
What is the best heating system for a Kirkland home?
For homes with ducts, a heat pump or hybrid system is often the best fit for our mild climate because it also cools. Homes with baseboard heat often do best with ductless mini-splits. A high-efficiency gas furnace still makes sense if you want the lowest upfront cost and already have gas.
How much does a new heating system cost?
It depends on the system type, home size, ducts and any gas or electrical work. We visit and give you a free, upfront price for each option.
Do I need a permit to replace my furnace or heat pump in Kirkland?
Yes. Kirkland requires a mechanical permit when heating equipment is installed or replaced. We pull the permit and schedule the inspection as part of the job.
How long does heating installation take?
Most furnace replacements take one day. Heat pumps, hybrid systems and multi-zone ductless systems usually take one to three days.
Can I switch from gas to a heat pump?
Yes. You can replace the furnace with a heat pump and electric air handler, or keep the furnace as backup in a hybrid system. We check your electrical panel first.
Are there tax credits for a new heat pump or furnace?
The federal 25C credit ended for installs after December 31, 2025. Utility offers change often, so we will tell you what is available when we quote.
Should I replace my AC at the same time?
If your AC is also over about 12 years old, replacing both together, or switching to a heat pump that does both, usually saves money and ensures the parts match.
Which areas near Kirkland do you serve?
All Kirkland neighborhoods, including Juanita, Finn Hill, Kingsgate, Totem Lake, Rose Hill, Houghton and Bridle Trails, plus nearby Redmond, Bothell, Woodinville and Kenmore.
Get a free heating installation estimate
In-home estimates Monday to Saturday, 7 am to 9 pm.
Customer Trust Us 
We are committed to honest, careful heating service on every visit. Whether it is a furnace that will not light, a heat pump that will not keep up or a new system for your home, our goal is a warm, safe and comfortable house when we leave.
Kirkland homeowners tell us what they value most: technicians who show up on time, explain the problem clearly, give a fair upfront price and leave the home clean. Here is what a few of them said.
