Veteran owned · Wasilla, Palmer & the Mat-Su Valley
Boiler Service in Wasilla, AK
Hydronic heat is the Valley's workhorse. We service, repair and replace it — and we know what Alaskan water does to a system.
24/7
No-heat dispatch
1 yr
Recommended service interval
A+
BBB accredited
$0
Replacement estimates
Based in
Wasilla, Alaska
Hours
Mon–Fri office hours · 24/7 emergency dispatch
Service area
Eagle River to Talkeetna, Glenn Hwy to Glacier View
Dispatch
Why the Valley calls Knik
Alaska-grade experience behind every truck roll
Knik Heating, LLC was founded by Patrick Hall, an HVAC professional with over twenty years in the trade including six years as a natural gas operator in Prudhoe Bay. Veteran-owned, BBB-accredited with an A+ rating, and serving the Mat-Su Valley since 2010 with 24/7 emergency service.
Veteran
Owned & Operated
BBB
A+ Accredited
Serving the Valley Since
2010
Emergency Dispatch
24/7
Equipment we install and service
24/7
Emergency
The education
Why boilers fail here, and why it's rarely the boiler
A modern condensing boiler is a heat exchanger, a pump, a control board and a sealed water loop. When one stops making heat, the fault is usually in the loop rather than the appliance: air trapped at a high point, a circulator that has seized after a summer of sitting, an expansion tank that lost its charge, a zone valve that no longer opens, or a low-water cutoff responding to a slow leak you haven't found yet.
The other half of boiler work in Alaska is water chemistry. Untreated well water builds scale on the fire side of a heat exchanger, and scale is an insulator — it drops efficiency, raises stack temperature, and eventually cracks castings. Proper fill water, a working expansion tank and an annual combustion check are what separate a boiler that lasts twenty-five years from one that dies in eight.
Straight answer
If you'd rather just talk it through, call (907) 357-6111 or text (907) 308-4233. Emergency furnace and plumbing calls are answered around the clock.
What you get
Specific, not generic
Everything below is something a technician actually does on the job.
01
Whole-loop diagnosis
We test the circulators, expansion tank charge, zone valves and air elimination — not just the appliance display.
02
Hydronic and radiant experience
In-floor radiant, baseboard, unit heaters and snowmelt loops are all normal work for our technicians.
03
Combustion analysis
Annual service includes a combustion check so a drifting burner is caught before it scales or sooties the exchanger.
04
Leak tracing
Chronic auto-fill activity means water is going somewhere. We find it instead of topping the system off forever.
05
Fully guaranteed work
Boiler repairs carry the same guarantee as everything else Knik Heating does.
06
Free replacement estimates
Boiler replacement is a significant investment. The estimate and the load calculation cost you nothing.
07
Domestic hot water integration
Indirect tanks and combi setups tie heating and hot water together. We service both sides as one system.
08
24/7 for no-heat
A boiler down in January is an emergency and gets treated like one.
How it goes
From your call to a system that works
- 01
Describe the symptom
No heat, one cold zone, banging pipes, a pressure gauge that won't hold — each points somewhere different.
- 02
System survey
Pressure, temperature, expansion tank charge, circulator function, zone operation and combustion, in that order.
- 03
Findings and options
You see what's failed and what it costs before any parts come off the truck.
- 04
Repair, purge, balance
We fix the fault, purge the loop of air, and confirm every zone comes up to temperature.
- 05
Set up for next winter
Water treatment, fill pressure and maintenance intervals explained so the same failure doesn't repeat.
Options
Pick the starting point
Every option starts with a real diagnosis. Pricing is quoted for your equipment, never guessed at online.
Boiler Tune-Up
Annual service to keep efficiency and combustion where they should be.
- Combustion analysis
- Heat exchanger inspection
- Expansion tank and pressure check
- Zone and circulator verification
Diagnose & Repair
For a boiler that's locked out, leaking, or leaving zones cold.
- Priority no-heat scheduling
- Whole-loop diagnosis
- Circulators, zone valves, controls
- Air purge and rebalance
- Guaranteed workmanship
Boiler Replacement
High-efficiency hydronic installation, estimated free.
- Free estimate and heat loss calculation
- Near-boiler piping done properly
- Indirect hot water options
- Old unit removed and disposed
Well water country
Water chemistry is the hidden killer of Valley boilers
Much of the Mat-Su runs on private wells, and that water goes straight into heating loops and water heaters. Hardness and iron plate out as scale on the hottest surfaces first, which is exactly where you least want an insulating layer. A boiler with a scaled exchanger burns more gas to make the same heat, runs a hotter stack, and stresses the casting until it cracks. Treating the fill water and testing it is cheaper than any of that.
- Fill water and loop chemistry reviewed on service visits
- Scale-related efficiency loss identified with stack temperature
- Whole-home filtration and softening available from the same crew
- Same technicians handle the boiler and the water treatment feeding it
Real work, real Valley homes
From our trucks, not a stock library
Google reviews
What Valley homeowners say
Published reviews from our Google Business Profile, word for word.
“I had a troubleshooting appointment today for 11:00-11:30 am. Alex called at 10:30 and said he was on the way and would be about 20 minutes out he was early which was awesome. He checked my heating system out figured out the problem, which was a simple fix. He was very polite and knowledgeable and so was his apprentice. They left there work area clean and tidy. Price was spot on to the initial call out fee. Highly recommend Knik Heating and Alex for any job.”
James Spaulding
Heating troubleshooting · 1/12/2025
“Aidan came out and addressed some serious safety concerns at my home, discovered the source of the issue (cracked heat exchanger on both the furnace and the garage unit heater) and took great care of myself and 3 kiddos! Additionally, Jared took great care of my grandpa and left him feeling assured that everything was taken care of.”
Taylor Mckechnie
Cracked heat exchanger · 6/18/2025
“Jared the technician was very thorough and did an exceptional job in troubleshooting my problem and servicing my boiler, very polite and knowledgeable. I would highly recommend Knik Heating to friends and family.”
timothy Quirk
Boiler service · 7/08/2025
“Arrived on time, very professional, knowledgeable and time efficient. Answered all questions and was polite to my kids.”
Brock Blankenship
Service call · 1/12/2025
“Very pleased with the service that my house desperately needed. Everyone was very knowledgeable and pleasant.”
Mikael Grim
Whole-home service · 12/12/2024
“They sure saved me for being able to get to my house to fix my furnace and a small problem I had. I'm trying to sell my house and they took care of my problem. They had a wonderful workman who really explained things.”
Wilma Gonzales
Furnace repair before a home sale · 7/29/2025
Common questions
Answers before you call
Something not covered? Text (907) 308-4233 and our dispatch crew will answer it.
One room is cold but the boiler is running. Why?
That's a distribution problem, not a boiler problem. The usual suspects are air trapped in that loop, a zone valve that isn't opening, a failed thermostat, or a circulator that's running but not moving water. All four are diagnosable in a single visit.
How often should a boiler be serviced?
Once a year, before heating season. Annual service is what catches scale, drifting combustion, a weak expansion tank and a seeping fitting while they're still cheap.
My pressure gauge keeps climbing. Is that dangerous?
It usually means a waterlogged expansion tank or a fill valve passing water. The relief valve will protect you, but a relief valve that dumps repeatedly will eventually fail to reseat. Get it looked at.
Can you replace a boiler in the middle of winter?
Yes, and we plan for it — that's normal in Alaska. We'll discuss temporary heat for the changeover so the house never gets cold enough to risk pipes.
Do you work on radiant in-floor systems?
Yes. Radiant floor loops, manifolds, mixing valves and zone controls are all standard work for our technicians.
Is a combi boiler a good idea for my house?
Sometimes. A combi saves space and handles heating plus domestic hot water in one appliance, but it has to be sized against your peak hot water draw, not just your heat loss. We'll tell you honestly if an indirect tank is the better fit.
Wasilla, Palmer & the Mat-Su Valley
Get boiler service & installation handled by the Valley's veteran-owned crew
Free estimates on installations. Guaranteed repairs. 24/7 emergency dispatch out of Wasilla.