Greeley Insulation Pros (970) 414-2650
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Cellulose being blown across an attic floor on a winter morning by insulation contractors in Greeley CO

Insulation Contractors Greeley, CO: Spray Foam, Attics, Crawl Spaces, and Shops

We install spray foam, blown-in, and attic insulation for houses, shops, and light commercial buildings in Greeley, Colorado and across Weld County. If the upstairs never warms up, the crawl space smells like outdoors, or the gas bill jumped again, this is the work that fixes it.

Tell us the room and the square footage and you get a real price range on the phone, before anyone drives out.

Call (970) 414-2650 Run a quick cost estimate

What we insulate in Greeley and Weld County

Ten services, all of them insulation. We do not sell roofs, windows, or furnaces, so nobody on the phone is trying to steer you toward a bigger ticket. Pick the one that matches your problem, or call and describe the room.

Not sure which one you need? Describe the room and we will tell you. (970) 414-2650

Why do Greeley homes leak so much heat?

Three things stack up here: old housing stock, fast new construction, and weather that swings 50 degrees in a day. Weld County has all three at once, which is why the same few failures show up house after house.

Union Colony-era houses near UNC and downtown

The oldest blocks in 80631 go back to the original Union Colony settlement, and the neighborhoods that grew around the University of Northern Colorado filled in through the middle of the last century. Those attics were insulated once, decades ago, and the material has been settling ever since.

A lot of pre-1980 Greeley attics measure R-19 or less against a modern target of R-49 to R-60. Many also have no air sealing at all, so warm air pours up through the top plates, the chimney chase, and every recessed light.

New builds in Promontory and west Greeley

Newer 80634 subdivisions are a different problem. Builders hit code and stop, which leaves you with a legal attic and an uncomfortable house. The rooms that suffer are the bonus room over the garage, anything under a vaulted ceiling, and the west-facing bedrooms that bake all afternoon.

Two-story homes out toward Promontory also get a stack effect problem. Warm air rises, finds the unsealed penetrations at the attic floor, and leaves. The furnace runs longer to replace it and the upstairs still feels drafty.

Chinook winds and a climate zone 5B winter

Greeley is in DOE climate zone 5B, which means real winter plus hot dry summers. What makes it harder than the numbers suggest is wind. Chinooks come off the Front Range and push air straight through any gap in the building envelope, so a house that feels fine on a calm 20 degree night feels awful on a windy 35 degree one.

That is why we treat air sealing and insulation as one job. Insulation slows heat. Only sealing stops the wind from washing through it. The Department of Energy guidance on air sealing says the same thing in more words.

The other Weld County wrinkle is agriculture. Between Greeley, Eaton, and Kersey there are thousands of pole barns, equipment shops, and metal outbuildings, and almost none of them were built to hold heat. Those get their own treatment, which is spray foam on metal buildings.

Cold upstairs, drafty floors, or a furnace that never shuts off? (970) 414-2650

What does insulation cost in Greeley?

Straight answer: most residential jobs in Greeley land between $1,500 and $6,000, and the spread comes from square footage, access, and whether old material has to come out first. Here is the short version before you read a full guide.

Those are typical Northern Colorado ranges, not quotes. For the full breakdown with cost drivers and worked examples, read the Greeley spray foam cost guide or the attic insulation pricing guide. If you would rather punch in your own square footage, the spray foam cost calculator returns a range in about ten seconds.

On rebates: the federal 25C credit is worth 30% of what you spend on insulation and air sealing, capped at $1,200 a year, and Xcel Energy runs its own Colorado insulation rebates on top of that. Amounts change, so confirm current numbers on the IRS energy efficient home improvement credit page before you budget around them.

Get a price range for your house today

Tell us the room, the square footage, and what it is doing wrong. You get a straight price range on the phone and a firm quote after we look at it.

(970) 414-2650

Greeley, Evans, Windsor, Eaton, Johnstown, Milliken, Severance, and Weld County.

Or send it in writing

Where do you work outside Greeley?

The service area centers on Greeley and runs county-wide. Each town below has its own page because the houses are genuinely different: 1970s ranches in Evans, hail-battered new builds in Windsor, farm shops in Eaton.

The service area also takes in Kersey, LaSalle, Ault, and Platteville, plus the smaller places along Highway 85 and Highway 34. Anything inside roughly 25 miles of Greeley is a normal drive. Ask when you call whether your address is on the regular route.

Outside city limits? Ask whether your address is in the regular route. (970) 414-2650

What to expect from insulation contractors in Greeley, CO

Every estimate starts with a phone conversation. You describe the building, the room, and the symptom. We give you a range on that call. If the range works for you, someone comes out, measures, gets in the attic or crawl space, and writes a firm number.

We will not quote a price sight unseen and call it final. Attics hide things: knob and tube wiring, an old bath fan venting into the insulation, a roof leak nobody knew about. Finding those before the truck is loaded is the entire point of a walkthrough.

We also say no when the job is not insulation. If your ice dams come from a bathroom fan dumping steam into the attic, that is a ventilation fix first. If your crawl space has standing water, drainage comes before foam. Insulating over a moisture problem just makes an expensive moisture problem.

Nothing on this site claims a review count, a license number, or years in business, because inventing those would be the easiest way to lose your trust. Ask about licensing and insurance for your specific job on the phone and you will get a straight answer.

Read this before you buy insulation

Insulation is one of the few home upgrades where a bad decision is buried behind drywall for twenty years. These are the three questions that come up most before an insulation purchase, answered in full.

The full insulation resource library covers closed cell foam, fiberglass comparisons, the 2026 tax credit, Xcel rebates, and whether mice really live in blown-in cellulose. Short answer on the last one: sometimes, and we will show you how to tell.

Done reading and ready for a number? (970) 414-2650

Common questions about insulation in Greeley

How much do insulation contractors charge in Greeley, CO?

It depends on the room and the square footage. A blown-in attic top-up on a typical Greeley ranch usually lands between $1,500 and $4,000. Attic air sealing runs $350 to $1,500. Crawl space work runs $1,500 to $6,000. Spray foam is priced by the board foot, roughly $0.45 to $0.75 for open cell and $1.00 to $1.50 for closed cell installed.

Those are typical Northern Colorado ranges, not quotes. A real number needs a measurement.

What R-value should a Greeley attic have?

Greeley sits in DOE climate zone 5B, so the attic target is R-49 to R-60. Many houses built before 1980 near UNC and downtown still measure out around R-19, which is roughly 6 inches of settled fiberglass. Going from R-19 to R-49 is the single cheapest comfort upgrade most Weld County homes can buy.

Do you serve towns outside Greeley?

Yes. The regular service area is Greeley plus Evans, Windsor, Eaton, Johnstown, Milliken, and Severance, plus the smaller Weld County towns in between such as Kersey, LaSalle, Ault, and Platteville. Anything inside roughly 25 miles of Greeley is a normal drive.

Is spray foam or blown-in better for my house?

For an open attic floor with room to work, blown-in cellulose or fiberglass gives you the most R-value per dollar. Spray foam earns its price where you need air sealing and structure in one pass: rim joists, crawl space walls, vaulted roof decks, and metal buildings.

Plenty of Weld County houses get both, foam at the leak points and blown-in over the flat attic.

Are there rebates or tax credits for insulation in Colorado?

The federal 25C credit covers 30% of the cost of insulation and air sealing, up to $1,200 per year. Xcel Energy also runs insulation rebates for its Colorado customers, and the amounts change, so check the current rebate sheet before you count on a number. We will tell you which parts of a job typically qualify and hand you the paperwork.

How long does an insulation job take?

Most attic jobs are done in a day. Air sealing plus blown-in on an average Greeley house is usually four to seven hours. A crawl space encapsulation and foam job is one to two days. Pole barns and shops depend on square footage, and big metal buildings can run two to three days.

Do I have to remove the old insulation first?

Not always. If the existing material is dry, evenly spread, and free of droppings, new insulation can go right over it. Removal is the right call when there is rodent contamination, water damage from a roof leak or ice dam, or old vermiculite that needs testing. Removal runs about $1.00 to $2.00 per square foot.

Talk to an insulation crew that works in Weld County every week

Tell us the room, the square footage, and what it is doing wrong. You get a straight price range on the phone and a firm quote after we look at it.

(970) 414-2650

Greeley, Evans, Windsor, Eaton, Johnstown, Milliken, Severance, and Weld County.

Or send it in writing