For builders and general contractors
One call. Whole envelope. Passes inspection.
Williston Insulation is set up to be the only insulation sub on your job. Spray foam, batts, rigid board, and the attic blow come from one crew, so the schedule has one name on it and nobody waits on a third trade. The owner walks the frame, quotes the assemblies, and is on the rig when it's sprayed.
How a new build runs with one insulation sub
Ember is us, steel is your trades and the inspector. Real sequence, not a sales graphic.
What you get from us
- A rough-in walkthrough before the rig shows up, with anything that would fail inspection flagged then, not on spray day.
- Quotes broken out by assembly so you can see what the rim joist, walls, and attic each cost.
- Foam, batts, rigid board, and blown-in from one crew, scheduled around your mechanical rough and drywall.
- Thickness and coverage documented per assembly for the inspector. We'll meet them on site.
- Masking, overspray control, and cleanup handled; your other trades walk into a clean frame.
- The owner on site for every job. The person who quoted it is the person holding the gun.
Assemblies we quote most
- Rim and band joist: closed-cell foam, two to three inches, the air seal that batts never manage.
- Exterior walls: full-depth foam, flash-and-batt, or batts with a dedicated air seal, depending on the wall section and the budget. Rigid board on the exterior for the continuous R-5.
- Cathedral and vaulted ceilings: closed-cell to the roof deck where there's no room for a vented attic.
- Basement and crawl walls: closed-cell direct to concrete, or rigid board behind a framed wall.
- Attics: air-sealed plates and penetrations, baffles at the eaves, blown-in to R-60 after the ceiling hangs.
- Shops and outbuildings: closed-cell to the metal or the sheathing, heated or not.
Read more on spray foam for new construction and the spray foam hub.
Builder questions
Can you quote from a plan set?
Yes. Send the plans and the wall, roof, and foundation sections, and we'll return a quote by assembly: rim joist, walls, attic, crawl or basement. If the sections are vague we'll ask instead of guessing, because the assembly decides the material.
Do you handle foam, batts, and the attic blow, or just foam?
All of it. One sub for the whole envelope means one schedule, one inspection walk, and one invoice. We'd rather own the whole line than spray a rim joist and hand the rest to someone who never saw the plans.
How much lead time do you need?
Tell us at framing and we'll hold a window around your mechanical rough. A typical house is one day of foam and a separate attic trip after ceilings hang. We'll confirm the dates when you confirm the rough-in walk.
Will the foam pass inspection here?
That's the point of the rough-in walk. We confirm thickness per assembly against the Zone 7 minimums before we spray, and we have coverage documented for the inspector. If something in the framing will fail, you hear it before the rig is on site.
Do you do hybrid assemblies?
Yes. A flash of closed-cell for the air seal and vapor control with batts filling the rest of the cavity is a common Zone 7 wall. We'll tell you when it makes sense and when full-depth foam or plain batts with good air sealing is the better spend.
Put us on the next job
Send the plan set, the rough-in date, and the address. You'll get a quote by assembly and a hold on the calendar.