Rochester Premier Insulation: Spray Foam, Attic & Crawl Space Insulation
Rochester Premier Insulation installs spray foam, attic, and crawl space insulation for homes and businesses. We help you choose insulation and air-sealing solutions that help reduce heat loss and improve comfort, which can ease heating bills.
Every project starts with a free on-site estimate and a written scope that spells out what is included. Published 2026 cost guides put blown-in attic insulation at $0.90 to $3.00 per sq ft installed, open-cell spray foam at $2.20 to $4.10 per sq ft, and closed-cell spray foam at $3.00 to $6.00 per sq ft.
The size of the area, the type of insulation, and the thickness we install all shape your estimate. Before work starts, we put the product, the areas we will cover, and any prep or removal work in writing. Call or fill out the free estimate form to get started.
Get Your Free Estimate
We will call you to set up your free estimate.
Why We're Rochester's Top Insulation Contractor
We know having work done on your home or shop can feel disruptive. Here is how we handle the fundamentals so you know what to expect before work starts.
Free, Written Estimates
You get a free on-site estimate and a written scope that spells out what is included.
Homes and Commercial
Spray foam, attic, and crawl space insulation for houses, shops, and commercial buildings.
Air Sealing With the Insulation
Air leaks are sealed as part of the job, including rim joists and crawl walls.
Honest Tear-Out vs Top-Off
We tell you which old insulation should come out before we quote the job.
Clear Scheduling
We agree on a start date and tell you when it is safe to go back in.
Clean, Protected Job Sites
We cover windows, floors, and anything that must stay clean before we start, then clean up before we leave.
Spray Foam, Attic & Crawl Space Insulation
We insulate Rochester homes, garages, and commercial spaces with materials suited to each assembly, from spray foam at rim joists to blown-in insulation across attic floors. We address air leakage, moisture conditions, insulation depth, and installation access before providing a written scope and estimate.
Spray Foam Insulation
We spray closed-cell or open-cell foam onto roof decks, rim joists, and wall cavities. Closed-cell gives more R-value per inch and can act as a vapor retarder at the listed thickness, while open-cell fills odd bays and stays vapor-open. Both air-seal as they expand, and the estimate starts with the assembly.
Attic Insulation
We blow loose-fill over the ceiling plane, or use foam against the roof deck when the attic joins the conditioned envelope. Baffles at the soffits stay clear so new fill does not choke intake. Depth follows the R-value your job needs, not a bag count.
Blown-In Insulation
We blow cellulose or fiberglass over an attic floor, or dense-pack it into closed wall cavities through small holes. Dense-pack resists settling better than a loose dump. We run the hose to depth, then plug and patch the access holes, ready for your paint.
Wall Insulation
Retrofit walls get dense-pack cellulose through small holes, and open walls in an addition or remodel can take batts, blown fill, or foam. We do not open every wall by default. You confirm whether interior or exterior access is allowed, and a full cavity also cuts sound transfer.
Crawl Space & Floor Insulation
We insulate crawl space floors between the joists, or insulate the walls with foam or rigid board and a sealed vapor barrier on the dirt. Rim joists are part of the job. We price it after a site visit, since cost depends on the surfaces and access.
Garage Insulation
We insulate garage ceilings under bedrooms and bonus rooms, the wall shared with the house, and heated shops. Rim joists and cantilevers get sealed, then the joist bays are filled so insulation touches the subfloor. The house-side wall keeps its gypsum fire separation.
Insulation Removal
Old cellulose and fiberglass come out with a vacuum truck when they are wet, contaminated, or too packed to top off. If we see vermiculite, we stop and point you to testing.
Basement Insulation & Rim Joist Insulation
Basement insulation covers the walls below grade, and rim joist insulation seals the band of framing on top of the foundation. Foam or rigid board handles both jobs and stops cold air coming in at the edge of the floor. That edge is a common reason a first-floor room never warms up.
Commercial Insulation
We install commercial insulation in Rochester, MN for offices, warehouses, industrial spaces, and post-frame buildings. We address air leakage, heat loss, and condensation risks, with a written scope and work scheduled around your hours.
Office & Commercial Buildings
We insulate offices, clinics, and storefronts, and we can work evenings or weekends to keep your floor open. We spec foam, blown fill, or batts from the assembly, not a one-product pitch. Cleanup is part of the job every time.
Warehouse & Industrial
We work on high bays, metal roofs, and conditioned shops. The usual ask is a more even temperature at floor level and less condensation under the roof. Access equipment and after-hours scheduling are part of the estimate.
Metal Building & Pole Barn Insulation
We insulate pole barns, shops, and pre-engineered metal buildings with liner systems, foam to the skin, or a mix. Condensation under the roof and cold air at floor level are the usual complaints. We choose the system once we see the building.
Insulation Types & R-Values
We select insulation by its R-value, air-sealing performance, and moisture requirements. For Rochester attics, ENERGY STAR recommends R-49 to R-60 for climate zone 6, with installed depth depending on the material and product rating.
Closed-Cell Spray Foam & Open-Cell Spray Foam
Closed-cell spray foam is denser, adds more R per inch, and can serve as a Class II vapor retarder at the thickness the manufacturer lists. Open-cell is softer, fills irregular bays, and stays vapor-open. Mix ratio, substrate temperature, and thickness get checked on site.
Cellulose Insulation & Fiberglass Insulation
Cellulose is loose fill blown over attic floors or dense-packed into wall cavities, and it suits older attic floors and denser wall packs. Fiberglass comes as batts for open stud bays or as blown fill over an attic floor. Batts fit when the cavity is empty and square.
Mineral Wool Insulation & Rigid Foam Insulation
Mineral wool is a stiffer batt with a higher melting point, which suits some walls and ceilings. Rigid foam is board insulation cut to fit crawl space walls, rim joists, and some metal buildings. Your assembly and access decide which one is the right product.
What Insulation Problems Do We Help With?
We address attic heat loss, moisture buildup, and air leaks that contribute to ice dams, drafts, and uneven temperatures in Rochester homes. Our inspections identify where insulation, air sealing, and ventilation need attention.
Ice Dams & Attic Ventilation
Heat leaking into a cold attic melts snow from below, and the water refreezes at the eave and backs up under the shingles. Air sealing at the attic floor, enough ceiling-plane insulation, and clear soffit baffles are the usual fix.
Attic Moisture & Ventilation Problems
Moisture on roof sheathing often tracks with a leaky attic floor, poor baffles, or poor attic ventilation. We fix the causes: air leaks, poor attic ventilation, and damp or damaged insulation. Wet insulation gets replaced once the source is stopped, and mold cleanup is a separate remediation service.
Home Energy Audits & Air Sealing
A home energy audit looks at where a house loses heat and air, and air sealing closes the leaks it finds. We seal the leaks we find at the attic floor, rim joists, and crawl walls as part of the insulation job.
How Much Does Insulation Cost in Rochester, MN?
Published 2026 buyer guides put blown-in attic work around $0.90 to $3.00 per square foot. Spray foam runs higher, roughly $2.20 to $6.00 per square foot depending on open-cell versus closed-cell. Your quote follows the assembly, not a city average.
Depth, access, air sealing, and whether old fill has to come out move the number more than the city name does. A site visit is how we put together your written estimate.
Rebates and energy-program dollars exist in Minnesota. You confirm current programs. We do not list dollar amounts here.
Spray Foam Insulation Cost & Attic Insulation Cost
Your insulation price depends on the area, material, installed thickness, and access to the work space. We separate those costs in your written estimate and identify any removal or preparation work before installation.
Blown-In Insulation Cost
Blown-in cost follows the depth you need and how easy the attic or wall is to reach. The table lists blown-in attic insulation at $0.90 to $3.00 per sq ft, installed. Attic quotes also change with how much air sealing the attic floor needs and whether old fill has to come out.
| Service | Typical Range |
|---|---|
| Blown-in attic insulation, installed | $0.90 to $3.00 per sq ft |
| Attic insulation, typical project | varies with depth and tear-out |
| Open-cell spray foam, installed | $2.20 to $4.10 per sq ft |
| Closed-cell spray foam, installed | $3.00 to $6.00 per sq ft |
| Wall dense-pack insulation | quoted after access is confirmed |
| Old insulation removal | quoted after we inspect the fill |
These ranges come from published 2026 buyer guides (HomeGuide, Angi/HomeAdvisor, RemodelCalculators) and are not our rates. We price each job after a site visit.
What to Expect When You Hire Rochester Premier Insulation
We start with an on-site assessment and a written scope that identifies the insulation material, installation area, and target thickness. We also establish access requirements, surface protection, ventilation, and cleanup plans before work begins.
- 01
On-site estimate
We look at your attic, walls, and crawl, note existing fill, and say whether old material should come out before quoting.
- 02
Air leaks and depth
Bypasses at the attic floor, can lights, and chases get called out. Depth and product follow the assembly, not a bag count.
- 03
Material selection
Foam, cellulose, or fiberglass. Open bays versus dense-pack. We recommend what actually fits the job and put it on your written scope.
- 04
Prep and protection
Access, containment, and a path for the hose or spray rig. Belongings in the work area get covered or moved.
- 05
Install
Fill, foam, or batts go in to the depth on the estimate. Baffles stay open. Rim joists and obvious leaks get sealed with the insulation.
- 06
Final walkthrough
We walk the work with you before calling the job done. Access holes in a wall pack get plugged and patched, ready for your paint, unless the estimate says otherwise.
Insulation Installation in Byron, Stewartville, Pine Island & Kasson
We provide insulation installation in Byron, Stewartville, Pine Island, and Kasson for homes and commercial buildings. Our services include spray foam, attic insulation, and crawl space insulation.
- Rochester, MN
- Byron, MN
- Stewartville, MN
- Pine Island, MN
- Kasson, MN
Insulation FAQs
Do you install spray foam and blown-in insulation?
Yes. Spray foam, blown-in cellulose or fiberglass, and batts are all in scope. The assembly decides which one we recommend.
Is the old insulation removed with the new install?
No, not automatically. Wet, contaminated, or packed fill usually comes out. Clean, dry fill can often stay and get a new layer on top. We call it out on the estimate.
Will more attic insulation stop ice dams?
Often it helps, but only if heat is not leaking into the attic in the first place. Air sealing at the attic floor and clear soffit baffles matter as much as the new depth.
Do you insulate walls without tearing off the drywall?
Yes. Dense-pack cellulose goes in through small holes. We patch those holes. Full tear-off is a different job and only when the wall is already open.
How long does a typical attic job take?
A straightforward blown-in attic is often a day once we are on site. Foam, wall packs, and removal add time. We give a range after we see the house, not a same-day promise.
Do you work on crawl spaces and rim joists?
Yes. Floor joists, crawl walls, and rim joists are in scope. We recommend floor or wall insulation after we check moisture and what runs through the crawl, and Rochester and Olmsted County code decides whether it stays vented.
Why are my floors cold in winter, and why won't some rooms warm up?
Cold floors often track with a thin or missing crawl insulation, leaky rim joists, or heat that rises and leaves the living space. Rooms that never catch the thermostat usually have air leaks, low attic depth, or both. We look at the attic, the walls, and the crawl together so the estimate matches what your house is actually doing.
Will better insulation lower my heating bills?
It often helps when air sealing and enough depth are part of the same job, because less heat escapes and the furnace or boiler cycles less. That is not a guarantee of a dollar amount. Your bill also moves with thermostat habits, equipment age, and utility rates.
Do crawl spaces need a vapor barrier, and what about moisture?
We lay a sealed vapor barrier over the dirt, lapped and taped at the seams, whether the crawl is closed or vented. Moisture, standing water, and damaged fill should be called out before new insulation goes in. Rochester and Olmsted County code decides whether a closed crawl or a vented crawl fits your house.
Do I need a permit for insulation work in Rochester or Olmsted County?
Permit rules depend on the scope and on what the city or county requires for that address. Some attic top-offs need nothing; other assemblies may. You confirm current requirements with Rochester or Olmsted before work starts. We do not invent permit rules on this site.
Are there Minnesota energy rebates or utility programs for insulation?
Minnesota utilities and state energy programs sometimes offer rebates for attic, wall, or air-sealing work. Programs change, and dollar amounts are not fixed here. You confirm what is current with your utility or a Minnesota energy program before counting on a rebate.
Get an Insulation Estimate in Rochester
Tell us whether it is a house or a workplace. We will look at the attic, the walls, and the crawl, then send a free written estimate.