Modern home exterior
Home Services Installation
Covington, WA & Surrounding Areas

HVAC Installation & Replacement

Upgrade your home comfort with a new, energy-efficient HVAC system. Expert installation backed by industry-leading warranties and 0% financing options.

Free Estimates 0% Financing 10-Year Warranty
NATE Certified
5-Star Rated
Licensed & Insured
0 Systems Installed
0 Years Experience
0 % Satisfaction Rate
0 5-Star Reviews
24/7 Emergency Support
2,500+ Systems Installed
15+ Years Experience
98% Satisfaction Rate
300+ 5-Star Reviews
24/7 Emergency Support
Know the Signs

When to Replace Your HVAC System

If you are experiencing any of these warning signs, it may be time to invest in a new, energy-efficient system.

Modern home interior
6 Warning Signs

Your system may be telling you it is time for an upgrade

Aging HVAC system

System Over 15 Years

Most systems lose significant efficiency after 15 years and are nearing end of life.

HVAC repair tools

Frequent Repairs

If repair costs exceed 50% of a new system's price, replacement is the smarter investment.

Rising energy bills

Rising Energy Bills

Steadily increasing utility costs signal declining system efficiency and wasted energy.

Thermostat showing uneven temperature

Uneven Temperatures

Hot and cold spots throughout your home mean your system can no longer distribute air properly.

AC outdoor unit

Strange Noises

Banging, squealing, or grinding sounds indicate worn components and potential failure.

Outdated R-22 system

R-22 Refrigerant

R-22 is phased out and extremely costly. Upgrading to R-410A saves thousands long-term.

Our Products

What We Install

From central air to ductless systems, we install and service all major HVAC equipment types and brands.

Central air conditioning unit
Cooling

Central AC

Whole-home cooling with high-efficiency split systems. 14-26 SEER2 ratings available.

14-26 SEER2 Up to 5 Tons
Home with gas furnace heating
Heating

Gas Furnaces

Reliable forced-air heating with up to 98% AFUE efficiency. Single and two-stage options.

80-98% AFUE Variable Speed
Modern home with heat pump system
Heating & Cooling

Heat Pumps

Year-round comfort with dual heating and cooling. Up to 300% efficient in moderate climates.

Up to 22 SEER2 Tax Credits
Modern interior with ductless mini-split
Zoned Comfort

Ductless Mini-Splits

Perfect for room additions, garages, and homes without ductwork. Individual zone control.

No Ductwork Multi-Zone
Home boiler system
Radiant Heat

Boilers

Efficient hydronic heating for radiant floors and baseboard systems. Gas and electric options.

95%+ AFUE Radiant Ready
Family enjoying comfortable home
Air Distribution

Air Handlers

Paired with heat pumps or AC units for optimal airflow distribution and filtration throughout your home.

Variable Speed HEPA Ready
How It Works

Our Installation Process

From consultation to completion, our 5-step process ensures a seamless installation experience every time.

01
Step One

Free In-Home Consultation

Our technician evaluates your home's heating and cooling needs, inspects existing equipment and ductwork, and discusses your comfort goals and budget. No obligation, no pressure.

In-home HVAC consultation
02
Step Two

Custom System Design

Using Manual J load calculations, we recommend the ideal system size and type. You receive a detailed proposal with equipment specs, pricing, and financing options.

HVAC system design and planning
03
Step Three

Professional Installation

Our NATE-certified crew handles everything: safe removal of old equipment, new system installation, electrical and gas connections, and thorough cleanup. Most installs complete in just one day.

Professional HVAC installation
04
Step Four

Testing & Commissioning

We run comprehensive performance tests including airflow measurements, refrigerant charge verification, safety checks, and thermostat calibration to ensure peak efficiency from day one.

HVAC testing and commissioning
05
Step Five

Follow-Up & Warranty

We register your manufacturer warranty, walk you through system operation, and schedule a complimentary follow-up visit. Our team remains available for any questions long after installation.

Happy family in comfortable home
Flexible Payment Options

0% APR Financing Available

Do not let cost stand in the way of your comfort. We offer flexible financing plans to make your new HVAC system affordable.

Apply in minutes with instant decision
0% APR for up to 60 months on qualifying systems
No prepayment penalties ever
Terms up to 72 months available
Competitive rates for all credit levels
Apply for Financing
0% APR

For up to 60 months

On qualifying systems. Subject to credit approval.

Example Monthly Payment

$85/mo

Based on $5,100 system / 60 months at 0% APR

System Cost $5,100
Interest $0
Term 60 months
Trusted Partners

Brands We Install

We are authorized dealers and certified installers for the industry's most trusted HVAC manufacturers.

CARRIER Turn to the Experts
LENNOX Innovation. Never Felt So Good
TRANE Hard to Stop a Trane
GOODMAN Stay Comfortable
RHEEM Making Comfort Personal
DAIKIN Perfecting the Air
YORK Legendary Performance
AMANA Lifetime Warranty
Transparent Pricing

Installation Packages

Every installation includes professional labor, equipment, permits, and warranty registration. No hidden fees.

Standard HVAC installation
Standard

Standard Install

$4,999+

Starting price

  • Standard-efficiency equipment (14-16 SEER2)
  • Professional certified installation
  • 5-year labor warranty
  • Standard thermostat included
  • All permits and inspections
  • Old equipment removal & disposal
Get Quote
Luxury HVAC installation
Luxury

Luxury Install

$14,999+

Starting price

  • Top-tier equipment (21+ SEER2 / variable speed)
  • Senior installer with 10+ years experience
  • Lifetime compressor warranty
  • Smart home integration setup
  • 2-year premium maintenance plan
  • Complete ductwork replacement option
  • Whole-home air purification system
  • Priority scheduling for all future service
Get Quote

* Prices vary based on system size, complexity, and home configuration. Contact us for an accurate, no-obligation quote.

What Our Clients Say

Installation Reviews

"Next Phase replaced our 20-year-old furnace and AC with a new Carrier system. The crew was professional, on time, and finished in one day. Our energy bills dropped 40% the first month. Could not be happier with the entire experience."

MJ

Michael J.

Covington, WA

"We had a ductless mini-split installed in our converted garage and it has been a game changer. The team explained all our options, helped us choose the right Mitsubishi unit, and the installation was clean and efficient. Highly recommend!"

SL

Sarah L.

Maple Valley, WA

"After getting three quotes, Next Phase offered the best value with a premium Lennox heat pump system. The financing made it affordable and the installation team was fantastic. Every room in our house is now perfectly comfortable year-round."

DR

David R.

Auburn, WA

"The whole experience from the first phone call to the final walk-through was outstanding. They installed a Trane XR15 system and the difference in our home comfort is night and day. Professional crew, clean work, great communication."

KW

Karen W.

Kent, WA

"We chose the Premium package for our new construction home and could not be more pleased. The Daikin heat pump they installed is whisper-quiet and keeps every room at the perfect temperature. The 10-year warranty gives us total peace of mind."

TN

Tom N.

Renton, WA

Got Questions?

Installation FAQ

HVAC tools and equipment

Everything you need to know about your HVAC installation

Most standard installations, including furnace and AC replacements, are completed in a single day (6-8 hours). More complex jobs involving ductwork modifications, heat pump conversions, or multi-zone systems may take 2 days. We will provide a detailed timeline during your consultation.

System sizing depends on your home's square footage, insulation, window count, ceiling height, and local climate. We perform a Manual J load calculation during our free in-home consultation to determine the exact capacity needed. An oversized or undersized system can cause comfort issues and higher energy bills.

Yes. All installations include the manufacturer's equipment warranty (typically 5-10 years on parts) plus our labor warranty (5-10 years depending on the package selected). We register your warranty on your behalf and provide all documentation. Our Luxury package includes a lifetime compressor warranty.

We generally recommend replacing both at the same time if they are similar in age. Matching a new high-efficiency unit with an older one can reduce overall system performance. Replacing both together also saves on labor costs since much of the work overlaps, and ensures your components are properly matched for peak efficiency.

We handle the complete removal and disposal of your old HVAC equipment at no extra charge. All refrigerant is recovered according to EPA regulations, and metal components are recycled whenever possible. You do not need to worry about any part of the removal process.

Yes, many high-efficiency HVAC systems qualify for federal tax credits, local utility rebates, and manufacturer rebates. Heat pumps, for example, can qualify for federal tax credits up to $2,000 under the Inflation Reduction Act. We help identify all available incentives during your consultation so you get the maximum savings.

Beautiful modern home
Ready to Get Started?

Upgrade Your Home Comfort

Schedule your free in-home consultation today and discover how a new HVAC system can transform your comfort and reduce your energy bills.

Same-Day Response
0% Financing Available
Satisfaction Guaranteed