Insulation & Air Sealing Services in Boise & the Treasure Valley

Talk to us about Insulation & Air Sealing Services in Boise & the Treasure Valley

Year-round protection from the elements.

Even the best heat pump can’t perform well if your home is under-insulated or full of air leaks. Poor insulation forces your heating and cooling equipment to work harder, creates temperature swings between rooms, and drives up your energy bills.

At River City HVAC, we use insulation and air sealing upgrades to support our high-performing heat pump systems and deliver a home that’s comfortable, energy efficient, and healthy.

Young couple being playful and comfortable in the kitchen while it snows outside the window

Insulation & Air Sealing: Your Foundation for Home Comfort & Energy Efficiency

  • Keeps conditioned air inside your home
  • Prevents drafts, cold floors, and uneven temperatures
  • Reduces your home’s heating and cooling load
  • Lowers monthly energy bills
  • Improves indoor air quality by blocking outdoor dust, pollen, and pollutants
  • Helps your new heat pump perform at its full potential

A home’s thermal shell is the barrier separating your living space from the outdoor elements. It includes things like your foundation, walls, roof, windows, and doors, as well as the insulation and air sealing that help control heat flow.

A well-sealed thermal shell is crucial for energy efficiency, comfort, and moisture control. If that shell is weak, your HVAC system must constantly fight against the outdoors.

Our job is to strengthen your home’s thermal shell so your HVAC equipment can do its job.

What We Do

Types of Insulation We Install

Blown Cellulose Insulation Being Applied To New Construction House

Blown-In Cellulose

A high-performance, eco-friendly insulation ideal for attics and walls.

Benefits:

  • Made from recycled materials
  • Great sound control
  • Cost-effective and highly efficient

Perfect for: attic floors, walls, hard-to-reach cavities

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Worker applying spray foam insulation in wall cavities

Spray Foam Insulation

All-in-one insulation and air sealing.

Benefits:

  • Highest R-value per inch
  • Exceptional air-sealing ability
  • Closed-cell spray foam is also a moisture barrier

Often used for: rim joists, basements and crawlspaces, underside of attic roof

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How We Evaluate Your Insulation Needs

Just like heat pump installation, when it comes to insulation and air sealing, we don’t guess. We measure!

During your home consult, River City uses diagnostic tools to pinpoint insulation gaps and air leaks:

  • Blower door testing to measure how leaky your home is
  • Thermal imaging cameras to reveal hidden cold spots and missing insulation
  • Airflow and pressure measurements to understand how your HVAC system interacts with your home’s shell

Our process is centered around a building science-based approach. It helps us design a custom insulation upgrade plan that actually solves the comfort issues you feel every day.

Technician reviewing heat pump performance on tablet device

Smarter Heat Pump Performance Starts With Better Insulation

If you’re installing a new heat pump, improving your insulation and air sealing beforehand can:

  • Reduce the size of the equipment you need
  • Increase system efficiency
  • Improve comfort in every room
  • Lower monthly utility bills
  • Dramatically improve long-term performance

Poor insulation means your HVAC system is working overtime, even if it’s brand new.

Fix the shell, and everything inside works better.

River City’s Whole-Home Approach

Unlike companies that only handle HVAC or insulation, River City HVAC excels in both!

  1. We understand how your HVAC, ductwork, insulation, and air sealing all interact
  2. We design solutions where every upgrade supports the next
  3. You don’t have to hire multiple contractors who aren’t working in sync
  4. You get a single, building-science-backed plan tailored to your home

Our independent, locally-owned team brings deep expertise in understanding how a home performs and how to make it perform better.

Rebates & Incentives for Insulation

Model house with hundred dollar bills spread around it

Turbo-charge your new heat pump.

Upgrade your home’s insulation and air sealing.