Alaska’s Extreme Comfort Specialists
24/7 Heating, Cooling & Plumbing—built for the Last Frontier

Built for Alaska. Powered by Expertise.
Since opening our doors in 2002, Extreme Heating and Air has protected over 8,000 Alaskan families and businesses from the dangers of frozen pipes and malfunctioning boilers. We live where we work—so when temperatures hit ‑30 °F, our phones stay on and our trucks stay warm.
Our technicians log hundreds of hours in factory labs each year to stay ahead of regulatory changes and efficiency breakthroughs. Whether it’s hydronic in-floor heating or high-SEER2 heat pumps, we design systems that keep utility bills low without sacrificing comfort.
Every installation is backed by transparent pricing, meticulous safety checklists, and the Extreme Gold Care maintenance guarantee that prevents costly surprises.
- Licensed, bonded & fully insured across Alaska
- NATE-certified and OSHA-trained technicians
- Eagle River & Anchorage rapid-response fleet with GPS tracking
- 0% APR financing options for qualifying homeowners
Comprehensive Services

Heating
Boilers, furnaces, hydronic & in-floor systems engineered to thrive during Arctic winters.

Cooling
High-efficiency air conditioning and variable-speed heat pumps keep brief Alaskan summers comfortable.

Plumbing
Water heaters, gas lines, filtration, sump pumps, leak repairs, and full bathroom remodel rough-ins.

Indoor Air Quality
Air purification, humidifiers, balanced ventilation, and duct cleaning to remove wildfire smoke and allergens.

Extreme Gold Care
Proactive maintenance plans that slash energy bills and extend equipment life by up to 40%.

24/7 Emergency
On-call technicians for no-heat or burst-pipe disasters—every hour of every day, including holidays.
Extreme Gold Care Maintenance Program
Join hundreds of Alaskans who never worry about surprise breakdowns.
Members receive bi-annual tune-ups, priority scheduling, and exclusive parts discounts—saving the average household $440 a year.
- Bi-annual complete system inspection
- 15% discount on repairs & parts
- Priority emergency response
- Annual water heater flush included
- Transferable to new homeowners
Smarter Technology, Greener Results
We specify ENERGY STAR® certified equipment with AFUE ratings above 95% and SEER2-compliant cooling that can cut utility costs up to 30%. Our design software models heat loss for each property, ensuring every BTU is purposeful.
Beyond equipment, we continuously invest in eco-friendly practices—from reclaiming refrigerant for recycling to offsetting our fleet emissions with regional carbon credits.
- Smart thermostats & remote monitoring via secure app
- Low-NOx burners & sealed combustion technology
- Company-wide refrigerant reclaim program
6,400
kWh Saved / Year
4.8
Tons CO₂ Avoided
12,000
Gallons Water Conserved

Our Proven 5-Step Process
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1. Assessment
On-site evaluation with thermal imaging and combustion analysis.
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2. Custom Design
Load calculations and equipment selection tailored to Alaskan codes.
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3. Transparent Estimate
Itemized proposal complete with efficiency ROI forecast—no hidden fees.
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4. Expert Installation
NATE-certified team follows ACCA Manual J & S standards.
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5. Ongoing Care
Gold Care plan keeps systems performing like new for years.
What Our Clients Say
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Recent Projects

Arctic Medical Center Retrofit
Converted a 1960s steam boiler to a high-efficiency condensing system, reducing fuel consumption by 28% and improving patient-area air quality.

Downtown Condo IAQ Upgrade
Installed an energy-recovery ventilator and MERV-13 filtration, boosting indoor air-quality score from 65 to 91 within two weeks.
Certified & Partnered With




Meet the Extreme Team

Mark Hemboldt
Founder & Lead Engineer
20+ years designing high-efficiency systems for Arctic environments.

Lisa Koenig
Service Manager
Coordinates 24/7 dispatch, ensuring crews arrive prepared and ahead of schedule.

Carlos Ramirez
Senior Plumber
Specializes in tankless water heater design and gas safety certifications.

Erin Jones
IAQ Specialist
Certified under EPA Indoor Air Quality Protocols with a focus on wildfire smoke mitigation.
Proudly Serving
Eagle River, Anchorage, Chugiak, Peters Creek, and surrounding communities.
Request Service or Quote
Fill out the form and our team will respond within one business hour.