Snohomish Furnace & Air — Affordable Heating Solutions

AC Installation in Snohomish County, WA

New central air conditioning unit installed at a Snohomish County home

AC Installation

Central AC Installation

Stay cool all summer with a new high-efficiency central air conditioning system. Proper sizing, code-compliant installation, and free estimates throughout Snohomish County.

4.7-Star Rated Licensed & Insured Snohomish County Experts Same-Day Service Available

Expert AC Installation for Snohomish County Homes

Whether you're adding central air to a home that only has heat, replacing an aging system, or building new, we'll help you choose the right AC for your home and budget. We carry top brands and size every system with a proper Manual J load calculation — not guesswork — to ensure maximum comfort and efficiency. All work is permitted, code-compliant, and backed by both the manufacturer warranty and our own labor warranty. We serve all of Snohomish County including Lake Stevens, Everett, Marysville, Monroe, and surrounding areas.

Free installation estimates — no obligation

Why Choose Us

  • Authorized dealer for Rheem, Coleman & Johnson Controls
  • Proper Manual J load calculations — correct sizing guaranteed
  • High-efficiency models — up to 20+ SEER2
  • All work permitted and code-compliant
  • Manufacturer warranty + our labor warranty included
  • Synchrony financing available — apply online
  • Old equipment removal and disposal included
  • Serving Snohomish County since 2005

Our Installation Process

1

Free Estimate

We assess your home, calculate cooling load, evaluate existing ductwork, and recommend the right system.

2

Equipment Selection

We walk you through options by efficiency, brand, and budget — no pressure, no upselling.

3

Installation Day

Our crew arrives on time, installs the system, removes the old equipment, and cleans up completely.

4

Commissioning

We test the system, verify performance, register your warranty, and handle the permit inspection.

Frequently Asked Questions

How much does AC installation cost in Snohomish County?

Cost varies based on system size, efficiency rating, and whether ductwork modifications are needed. A standard central AC installation typically ranges from $3,500–$8,000 installed. We provide a free, detailed estimate so you know exactly what to expect before committing.

Can you add central AC to a home that only has a furnace?

Yes — if your home has existing ductwork, adding central AC is usually straightforward. We'll evaluate your ductwork condition and capacity during the estimate and let you know if any modifications are needed. In most cases, we can add AC to an existing forced-air system in one day.

What SEER2 rating should I choose for my Snohomish County home?

SEER2 measures cooling efficiency — higher is better. For Snohomish County, we typically recommend 16–18 SEER2 systems for the best balance of upfront cost and long-term savings. Higher-efficiency models cost more upfront but pay back through lower energy bills over time. We'll help you calculate the payback period for your specific usage.

How long does AC installation take?

Most central AC installations are completed in one day. If ductwork modifications are needed, it may take an additional day. We'll give you a specific timeline during your free estimate.

Should I replace my AC or repair it?

If your AC is over 12–15 years old, requires frequent repairs, or uses R-22 refrigerant (which is no longer manufactured), replacement is usually the better investment. Our $69 diagnostic gives you an honest assessment so you can make an informed decision.

What brands do you install?

We are authorized dealers for Rheem, Coleman, and Johnson Controls — all top-tier brands with strong warranty programs. We'll recommend the best fit for your home and budget.

Do I need a permit for AC installation in Washington?

Yes — AC installation in Washington State requires a permit, and all work must be code-compliant. We handle the permit process as part of every installation. Be cautious of any contractor who suggests skipping the permit.

Is a heat pump a better option than central AC?

If you're adding cooling to a home that only has heat, a heat pump is worth considering — it provides both heating and cooling in one system, and may be more cost-effective than installing separate AC and keeping an aging furnace. We'll walk you through both options during your estimate.

Ready to Request Service?

Serving all of Snohomish County — Lake Stevens, Everett, Marysville, Monroe & more. Diagnostic only $69.

Share