Family looking out window at snow
Covington, WA

Your Comfort,
Our Priority

Washington's trusted HVAC and electrical experts. From emergency repairs to full installations, panel upgrades to EV charger installs — we keep your home comfortable, safe, and powered.

Licensed & Insured
4.9★ Rating
15+ Years
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Licensed & Bonded in Washington ♦ 24/7 Emergency Service Available ♦ 4.9-Star Rated on Google ♦ All Major Brands Serviced ♦ 2,500+ Homes Served ♦ Upfront Pricing — No Hidden Fees ♦ Residential Electrical Services ♦ Licensed & Bonded in Washington ♦ 24/7 Emergency Service Available ♦ 4.9-Star Rated on Google ♦ All Major Brands Serviced ♦ 2,500+ Homes Served ♦ Upfront Pricing — No Hidden Fees ♦ Residential Electrical Services
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Heating & Cooling

Our HVAC Services

From emergency furnace repairs to full AC installations, our certified technicians keep your home comfortable through every season.

Air conditioning installation and repair

Air Conditioning

Seattle summers are getting hotter every year and a reliable AC system is no longer optional. We handle emergency repairs, seasonal tune-ups, and complete system replacements for every major brand — keeping your family cool when it matters most.

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Furnace installation and repair

Furnace

Gas and electric furnace installation, repair, and seasonal maintenance for Washington winters. We work on all major brands and help you choose the right system for your home's size, layout, and budget — with upfront pricing before work begins.

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Heat pump system

Heat Pump

Energy-efficient heating and cooling from a single system. Ideal for the Pacific Northwest climate, heat pumps cut energy bills while keeping every room comfortable year-round.

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Ductless mini split system

Mini Split

Ductless mini splits are perfect for homes without ductwork, additions, or rooms that never reach the right temperature. Zone-by-zone control lets each room set its own comfort level.

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Indoor air quality solutions

Indoor Air Quality

Whole-home air purifiers, UV germicidal lights, and high-efficiency filtration that remove allergens, mold spores, and VOCs so your family breathes cleaner, healthier air.

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Smart thermostat installation

Thermostat

Smart thermostats learn your schedule and optimize heating and cooling automatically. We install Nest, Ecobee, Honeywell, and all major brands so you save energy effortlessly.

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24/7 Emergency Service

Immediate HVAC response when your comfort cannot wait another minute.

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Electrical Services

Our Electrical Services

Licensed residential electrical work with the same professionalism and care as our HVAC services. Fully permitted, code-compliant, and backed by our satisfaction guarantee.

Electrical panel upgrade

Electrical Panel

200-amp panel upgrades, breaker replacements, and fuse box conversions for homes that have outgrown their electrical capacity. If your breakers trip regularly or your home still runs on a 100-amp panel, it is time for an upgrade.

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EV charger installation

EV Charger

Level 2 home charging station installation for Tesla, Ford, Rivian, and every other EV on the road. We run a dedicated 240V circuit, mount the charger, and handle the permit — garage or driveway.

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Generator installation

Generator

Whole-home standby generators with automatic transfer switches that kick in the moment power goes out. We install Generac, Kohler, and other trusted brands sized to keep your entire home running.

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Outlet and circuit installation

Outlets & Circuits

New outlets, GFCI upgrades, dedicated appliance circuits, and rewiring for older homes. No more tripped breakers or overloaded power strips.

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LED lighting installation

Lighting & LED

Recessed lighting, under-cabinet LEDs, outdoor security lights, and complete fixture upgrades. We wire it right and position it so your home looks its best.

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Ceiling fan installation

Ceiling Fan

New fan installation, light-to-fan conversions, and proper bracing and wiring. The right fan in the right room makes a real difference in comfort and air circulation.

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Dimmer switch installation

Dimmer Switch

Smart dimmers, standard dimmers, 3-way switches, and multi-gang setups. Small upgrade, big impact on ambiance and energy savings.

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Electrical Safety Inspection

Not sure where your electrical system stands? Our thorough home inspection checks your panel, wiring, outlets, and grounding — catching hazards before they become emergencies. Most inspections uncover issues homeowners never knew existed.

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Next Phase Heating, Air Conditioning & Electric team with service vans
15+
Years Serving
Washington Families
Why Next Phase

The Next Phase Difference

We combine old-school craftsmanship with modern efficiency to deliver HVAC and electrical service that truly puts your comfort first.

Upfront Pricing

Know the cost before work begins. No surprises, ever.

Licensed & Insured

Fully certified techs you can trust in your home.

Same-Day Service

Fast response when your comfort is on the line.

All Brands Serviced

We service every major HVAC brand and handle all residential electrical work.

Warranty on Work

Our work is backed by a satisfaction guarantee.

Real Communication

We answer your calls and explain everything clearly.

Save Money

Cut Energy Costs by Up to 30%

A well-maintained HVAC system and modern electrical upgrades run more efficiently, saving you hundreds on monthly energy bills.

High-Efficiency Upgrades

Modern heat pumps and AC units deliver 2-3x more efficiency than older models — reducing your energy use while keeping every room comfortable.

2-3x more efficient

Smart Thermostat Integration

We install and configure smart thermostats that learn your schedule and optimize comfort — so you never pay to heat or cool an empty home.

24/7 smart optimization

Preventive Maintenance Plans

Regular tune-ups prevent breakdowns and keep your system running at peak performance year-round — extending its lifespan by years.

30% energy savings
Simple Process

How It Works

Three simple steps to total home comfort.

Book online scheduling form
1

Schedule

Call us or book online. We will find a time that fits your schedule perfectly.

HVAC technician diagnosing
2

Diagnose

Our expert technician arrives, evaluates your system, and explains your options clearly.

Technician with happy customer
3

Resolve

We fix it right the first time so you can get back to enjoying perfect comfort at home.

Schedule Service Today
Testimonials

What Our Customers Say

Real reviews from real Washington families.

"Next Phase was incredible. They came out within hours of my call, diagnosed the problem quickly, and had my furnace running perfectly before dinner. Honest pricing too!"

JM
Jessica M.
Covington, WA

"Best HVAC company in the area, hands down. They installed our new heat pump system and walked us through every detail. Professional from start to finish."

RL
Robert L.
Maple Valley, WA

"Our AC died on the hottest day of the year. Next Phase had a tech at our door within 2 hours. They are now our go-to for everything HVAC. Cannot recommend enough."

SK
Sarah K.
Kent, WA

"After two other companies gave us the runaround, Next Phase was a breath of fresh air. Transparent pricing, skilled technicians, and they actually show up on time!"

DW
David W.
Auburn, WA

"We have used Next Phase for our annual maintenance plan for 3 years now. Always on time, always thorough. Our energy bills have dropped significantly since they tuned up our system."

MT
Maria T.
Renton, WA

"Excellent service from start to finish. The technician explained exactly what was wrong with our furnace and gave us options instead of pushing the most expensive fix. Rare honesty!"

CP
Chris P.
Federal Way, WA

"Next Phase was incredible. They came out within hours of my call, diagnosed the problem quickly, and had my furnace running perfectly before dinner. Honest pricing too!"

JM
Jessica M.
Covington, WA

"Best HVAC company in the area, hands down. They installed our new heat pump system and walked us through every detail. Professional from start to finish."

RL
Robert L.
Maple Valley, WA

"Our AC died on the hottest day of the year. Next Phase had a tech at our door within 2 hours. They are now our go-to for everything HVAC. Cannot recommend enough."

SK
Sarah K.
Kent, WA

"After two other companies gave us the runaround, Next Phase was a breath of fresh air. Transparent pricing, skilled technicians, and they actually show up on time!"

DW
David W.
Auburn, WA

"We have used Next Phase for our annual maintenance plan for 3 years now. Always on time, always thorough. Our energy bills have dropped significantly since they tuned up our system."

MT
Maria T.
Renton, WA

"Excellent service from start to finish. The technician explained exactly what was wrong with our furnace and gave us options instead of pushing the most expensive fix. Rare honesty!"

CP
Chris P.
Federal Way, WA
Summer home

Stay Cool

Beat the Washington heat with reliable cooling.

  • AC repair & installation
  • Efficiency tune-ups
  • Smart thermostat setup
Cooling Services
Winter house

Stay Warm

Never shiver through another Pacific Northwest winter.

  • Furnace repair & replacement
  • Heat pump installation
  • Emergency heating service
Heating Services

Stay Powered

Safe, reliable electrical for your entire home.

  • Panel upgrades & replacements
  • EV charger installation
  • Generator backup systems
Electrical Services
Coverage

Areas We Serve

Proudly serving communities across the greater Puget Sound region.

King County

Covington Kent Maple Valley Auburn Renton Federal Way Seattle Bellevue Issaquah Sammamish

Snohomish County

Everett Lynnwood Edmonds Marysville Lake Stevens Bothell Snohomish Monroe

Pierce County

Tacoma Puyallup Lakewood Bonney Lake University Place Graham Sumner Buckley
Got Questions?

Frequently Asked Questions

Quick answers to the most common questions we hear from homeowners.

We offer 24/7 emergency service and typically respond within 1-2 hours for urgent heating and cooling issues. Your comfort is our priority, day or night.

Yes! We provide free, no-obligation estimates for all new installations and major repairs. We believe in transparent pricing so you can make informed decisions.

We service and install all major HVAC brands including Carrier, Lennox, Trane, Goodman, Rheem, Daikin, York, and Amana. Our technicians are factory-trained on every brand.

We recommend twice yearly maintenance: once in spring for your AC and once in fall for your heating system. Regular maintenance extends equipment life, improves efficiency, and prevents costly breakdowns.

Absolutely. We offer flexible financing options with affordable monthly payments to help make a new HVAC system fit your budget. Ask us about approval during your free estimate.

Have a question not listed here? We are always happy to help.

View All Frequently Asked Questions

Satisfaction Guaranteed

100% happiness or we make it right

No Hidden Fees

The price we quote is the price you pay

Background Checked

Every technician is vetted and trained

Clean Home Promise

We leave your home cleaner than we found it

Winter house scene
Ready to get started?

Experience the
Next Phase Difference

Join thousands of happy Washington homeowners who trust Next Phase for all their heating and cooling needs.

Book Online (425) 648-7887
Licensed & Insured 4.9-Star Rated 24/7 Emergency Free Estimates