How to choose the right type of insulation for your home
In the depths of winter's chill or the heights of summer's swelter, the comfort of your home hinges on a hidden hero: insulation. The importance of…
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Insulation Replacement · Seattle Metro
Keep your house warmer in winter and cooler in summer
We remove old, damaged insulation and install the right amount of high-performance insulation for your home. The result: more even temperatures and significantly lower energy use.
- Old and contaminated insulation removed
- Knauf EcoBatt®, blown-in and spray foam insulation
- Help with CNGC and utility rebates
Get your free insulation inspection
Tell us about comfort, old insulation or energy bills and we'll recommend the right fix.
No obligationFirm, written quoteLicensed & insured
Since 2014Family owned
Screened & ApprovedHomeAdvisor
Licensed & InsuredWA Lic. #ATTICCI808NU
Lifetime Guarantee*On many services
What insulation does
A simple upgrade that really works
Insulation is a thermal barrier. It holds heat in during our long, cool heating season and blocks heat from entering in the summer, so your furnace or heat pump works less.
With the rising cost of gas and electricity, it's one of the most cost-effective upgrades you can make, and many homeowners notice the difference within days. Qualifying Cascade Natural Gas customers may also get rebates on the work.
Is it time?
Signs it's time to replace your insulation
High energy bills, uncomfortable rooms, uneven temperatures and poor air quality are common signs of old, damaged or missing insulation.
High energy bills
Heating and cooling costs that keep climbing.
Cold and hot rooms
Rooms that never warm up in winter or bake during a heat wave.
Heating that never stops
A furnace or heat pump that runs all day to keep up.
Thin or matted insulation
Insulation that's compressed or below the top of the joists.
Rodent damage
Droppings, tunnels and nests in the insulation.
Damp or moldy insulation
Wet, stained insulation from leaks or condensation.
How insulation works
Comfort in every season
In the winter
Our heating season runs from the first cold rains in October well into spring. Homeowners with cold houses often complain of furnaces that run nonstop, because heat escapes about as fast as the furnace can make it. Insulation keeps that heat inside for hours longer, so your home stays warm using much less energy.
In the summer
On hot days the sun heats your roof, and attic temperatures can climb to nearly 170°F. In a poorly insulated home, that heat pours into the rooms below, and summer heat waves are becoming more common here. Insulation blocks the heat, so the house stays cooler longer.
Green solutions
We use EcoBatt® insulation
Knauf EcoBatt® insulation is made with ECOSE® Technology, a binder made from rapidly renewable, bio-based materials instead of the petroleum-based chemicals used in traditional fiberglass. According to Knauf, it reduces binder embodied energy by up to 70% and contains no phenol, formaldehyde, acrylics or artificial colors. That's why it's naturally brown.
We also install blown-in fiberglass and cellulose, and spray foam where air sealing matters most: attic roof decks, rim joists and crawl space walls.
What better insulation does for you
- Lower heating and cooling bills
- More even temperatures from room to room
- Less wear on your furnace or heat pump, since it cycles less
- Air that isn't dried out by constant heating
- A quieter home, with less outside noise
Cascade Natural Gas customer? See if your insulation qualifies for a CNGC rebate
Book a Free Inspection
Our process
How we replace your insulation
Most attics are cleared and re-insulated in a single day.
- Inspect and measure your current insulation
- Remove old insulation with commercial vacuum equipment
- Clean and sanitize the attic, and seal rodent entry points
- Seal gaps around recessed lights, pipes and wiring
- Install new batts or blown-in insulation to the recommended depth, or spray foam where it fits best
- Walk you through before-and-after photos
Visual guide
Insulation options for your home
Read this guide as text
- Batts and rollsFiberglass batts fitted between joists, with reliable performance.
- Loose-fill blown-inFiberglass or cellulose blown into hard-to-reach areas for excellent coverage.
- Spray foamPolyurethane foam that seals gaps and air leaks.
- Rigid foam boardRigid panels for specific areas.
Project walkthrough
Attic insulation replacement in a Seattle Craftsman bungalow attic
Capitol Hill, Seattle · from first look to finished job
- Before
The attic floor is covered with degraded yellow fiberglass batts and debris, offering poor thermal performance.
- In progress
Work is in progress with new pink fiberglass batts being unrolled and cut to fit snugly between the floor joists.
- In progress
The insulation installation continues as the batts are carefully fitted and secured tightly to ensure thorough coverage.
- After
The attic insulation replacement is complete, markedly.
Some images show actual Attic Crew jobs; others are representative, with details changed for customer privacy.
Our work
Insulation replacement projects
Tap any photo or project to see it full size and step through it.
Before & after from past jobs
More insulation replacement projects
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Some images show actual Attic Crew jobs; others are representative, with details changed for customer privacy.
Customer reviews
What our customers say
Rated 4.9 on Google, with 5-star reviews on Yelp, so you can breathe easy knowing you're in good hands.
★★★★★
“Joey and his crew arrived on time. They were very professional and considerate to our needs. We needed our old insulation swapped out and have our attic and crawl space rodent proofed. They did an amazing job at doing so. He was considerate enough to take pictures of all work completed and presented me everything.”
★★★★★
“This company has done a unrivaled job. They stand behind their reputation and are true to their word. They did insulation clean up, installing new insulation, sanitized and rodent proof. It's only been a few days but you can already tell the different in the temperature of our house!”
★★★★★
“I was super impressed with the team that came a took care of what appeared to be a nightmare attic. The team lined our floors and walls from the entrance of the house to the attic trap door, removed all the old insulation and debris, then cleaned and sanitized the whole attic, covered any openings to prevent rodents in the future and closed off any ceiling openings with foam around each of our recessed lights.…”
Common questions
Insulation Replacement FAQ
How do I know if my insulation needs replacing?
High energy bills, rooms that are hard to heat, insulation that's thin, compressed or below the top of the joists, and any sign of rodents or moisture in the insulation all point to replacement. We measure what you have during the free inspection.
What insulation do you install?
Knauf EcoBatt® batts made with ECOSE® Technology, blown-in fiberglass and cellulose, and spray foam. We recommend what fits your attic, crawl space, budget and goals.
When is spray foam the right choice?
Spray foam seals air leaks as it insulates, so it works well on attic roof decks, rim joists, crawl space walls and other spots where air sealing matters as much as R-value. For an open attic floor, blown-in insulation is usually the better value. We'll recommend the right material for each area.
Can I get a rebate on new insulation?
Possibly. Attic Crew is a certified CNGC Trade Ally, and qualifying Cascade Natural Gas customers can get rebates on attic, floor and wall insulation, air sealing and duct work. We'll check eligibility during your free inspection.
Do you remove the old insulation first?
In most cases, yes. Old insulation that's compressed, wet or contaminated by rodents should come out before new insulation goes in.
How long does insulation replacement take?
Most attics are cleared and re-insulated in one day.
Attic Crew is your one-stop shop
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