Insulation contractor in Fernley, NV - attics sealed and topped up right
Complete Sparks Insulation Services is an insulation contractor based in Sparks that works in Fernley homes and rentals. We seal attic gaps, top up or replace old insulation, and insulate walls and crawl spaces.

Fernley homes as we see them
We're an insulation contractor in Sparks, NV, and Fernley is a short drive east of us. Most of our calls out there come from homeowners. The rest come from landlords and property managers whose rental has gotten hard to keep comfortable. The work looks a lot like what we do in Sparks and Reno: attics, the room over the garage and now and then a crawl space.
What changes the job is what's already up there. An attic with a few inches of settled fill and open gaps around the lights and the hatch needs those gaps closed before it needs more insulation. A crawl space that has taken water needs that sorted before anything new goes down.
Permits, licenses and what moves the price in Fernley
Inside city limits, the City of Fernley's Building Division issues building permits, and you can follow a permit's status on the city's permit portal. Before work starts, we check what the city asks for at your address and take care of the permit when your job needs one. A permit adds a review and an inspection to the calendar, so we want to know that before we set an install day. City code also says any business working for profit in Fernley needs a City business license first, unless the code exempts it. It's fair to ask whoever you hire to show you theirs. We're fully licensed and insured, and I'm glad to show you.
The price comes down to what I find. Several things move the number: how many inches are already up there, whether old insulation that's wet or full of droppings has to come out first, how many gaps need sealing, and how hard the attic or crawl space is to get into. Choosing spray foam over blown-in fill, which is loose insulation blown through a hose, moves it too. The schedule turns on removal, the permit when there is one, and the city's inspection calendar. We do the same work up in Truckee, CA, and every house gets priced after I've been in the attic, which is why the estimate happens at your home.
Why Fernley houses call us
Most Fernley calls start with a hot upstairs, a cold room over the garage or a power bill that keeps climbing. The room over the garage is usually the worst. It has outside air on more sides than any other room, and the insulation in its floor and short side walls is often thin or pulled loose. We check those spots first and seal the gaps before adding anything. Where an outside wall is the problem, wall insulation can usually be blown into the closed wall without tearing out the drywall.
Rentals are the other big part of the work out here. Landlords want the job done once, so we look for what would undo it, like a roof leak, a buried eave vent or old wiring, and say so before anyone pays for insulation.
Get a free on-site insulation estimate in Fernley
We'll get back to you within one business day to set a time. Then I come out to your Fernley house for a free estimate with no obligation. I look at the attic, walls or crawl space myself and walk you through what I found and what should be fixed first.
(775) 447-1072How it goes when you call us in Fernley
Call or send us a message
Call (775) 447-1072 or use the form and tell us what you're noticing, like a hot upstairs or a bill that keeps climbing. Landlords can tell us which unit it is and who'll let us in.
I come out and look
I do the estimate myself at your house and go through the attic, the walls and the crawl space. It helps to clear a path to the attic hatch and empty any closet it sits in.
Go over what I found
I walk you through what's up there, what's working and what should be fixed first, and why. Then it's your call.
Check what the city asks
If you go ahead, we confirm what the City of Fernley needs for your job and handle the permit when there is one. The city's permit desk takes submittals until 4 PM on weekdays, so we get the paperwork in early in the day.
Install, inspect and walk through
Our small crew does the prep and install with me on the job. When an inspection is needed, a request in by 4 PM gets the next available inspection day, though weather and the city's workload can push it, and before we pack up I walk the finished job with you.
Insulation work up close
Fernley insulation questions we hear
How much does it cost to insulate an attic in Fernley?
Sealing the gaps and topping up loose fill is usually the less expensive route. Pulling out old insulation or switching to spray foam raises the price. I give you your own number after looking at your attic in person, and I'll tell you if part of the job isn't worth paying for.
What is the best way to add insulation to an attic that already has some?
Usually the best way is to seal the gaps around lights, pipes and the hatch first, then blow in fresh fill evenly, edges included, while keeping the eave vents clear so the attic can still breathe. If the old material is soaked or full of droppings, it comes out first, because covering it keeps the problem. Closed-cell foam, a dense foam that also blocks moisture, costs more and seals as it insulates, so I steer people to it mainly when the ductwork runs through the attic.
Do we have to leave the house during insulation work in Fernley, and when can kids and pets come back?
For blown-in fill and air sealing, which means closing the gaps before insulating, you can usually stay home and just keep clear of the attic hatch. Spray foam is different. The foam maker's instructions set the re-entry time, the wait before anyone goes back inside, so we tell you that wait before we start and plan the day around it.
How long does attic insulation take in a Fernley house?
A top-up over a clean attic is the quick end of the range. Pulling out wet or dirty insulation first, sealing a lot of gaps or spraying foam takes longer. I tell you what to expect for your attic at the estimate, and a permit inspection can add a day or two on the calendar.
Is it safe to air seal a Fernley house with a gas furnace or water heater?
Yes, as long as those appliances still get the air they need. That's why we look at gas appliances and fresh air before anything gets sealed. A tighter house can change how a furnace or water heater draws air, so if something looks off, we sort that out first.
What should I do if my Fernley crawl space takes on water?
Deal with the water before you insulate, because insulation that stays wet stops working and holds moisture against the framing. Lyon County's flood page tells residents to keep leaves and debris cleared so water can reach the ditches. It also lists self-fill sandbag sites in Fernley, including Out of Town Park, where you bring your own shovel. Once the crawl space is dry, we can lay a vapor barrier, a heavy plastic sheet over the dirt, and insulate.
Plan your Fernley insulation job with us
Call (775) 447-1072 or send the form. Even if you decide to wait, you'll know what's in your attic and what it's doing.




