Retrofit insulation in Davenport IA - warm walls without tearing them open
Cold rooms, drafts and a high heating bill in an older house often trace back to empty walls. We fill them through small holes.
- Services
- 16
- Service areas
- 12
Have us look at your walls and attic
I look at your attic and walls in person and tell you what's actually worth doing.
Request an estimateCan you add insulation to a house that's already built?
Retrofit insulation in Davenport means adding insulation to a finished house, usually by blowing it into empty walls through small holes and topping up the attic, so the cold rooms warm up and the drafts ease off.
Most of our calls for this come from people in older houses on both sides of the river, in Iowa and Illinois, with a room that never warms up or a power bill that keeps climbing. The price moves with how many walls need filling, whether we can reach them from inside or outside, what's already in the attic and whether old material has to come out first. The schedule turns on the same things, plus anything I find that has to be fixed before insulation goes in. If it's only one cold room, wall insulation for that room may be all you need, and the estimate visit is where you get the number for your own house.
How we do retrofit insulation on an older house
I start by checking the ceiling lights and wiring so nothing gets buried that shouldn't be, and I look at what's already up there, because fresh insulation over soaked old material or droppings just keeps the problem. Before any insulation goes in, our crew does the air sealing, closing gaps around lights, pipes and the attic hatch, so the new material isn't fighting a draft. For the walls, we look for a way to fill them through small holes instead of tearing them open, using blown-in insulation, loose fill pushed through a hose until each space is full, and then we patch the holes. In the attic we keep the eave vents clear so the attic can still breathe, and we make sure the edges get as much coverage as the middle, since that's where it usually runs thin. The crew cleans up behind itself, and I check the finished job with you. Your satisfaction, guaranteed.
A lot of retrofit jobs include attic insulation when there are only a few inches up there, and some houses are a better fit for spray foam insulation. Foam costs more, but it seals air while it insulates. In most attics I'd rather seal the gaps and top up the loose fill, unless your ductwork runs through the attic, because then foam usually earns its price.
Retrofit insulation in Davenport's older houses
Houses built before 1980 often have little or no insulation in the walls, and we see plenty of them on jobs in Davenport, so the walls are the first thing I ask about in an older house. We find the same kind of houses on jobs in Rock Island and Bettendorf.
Some of those older houses still have knob-and-tube wiring, an early style of house wiring with the wires strung on porcelain posts, and the electrical code doesn't allow insulation to be put on it or packed around it. That's a big reason I look at the wiring before I quote any wall or attic space. If it's still there, we leave that space alone until the wiring has been dealt with, because burying it is the one shortcut we won't take.
Why call us for retrofit insulation
The owner writes your estimate
I come out myself to look at the house and write the estimate, and our crew does the work. When they're done, I walk the finished job with you so you can see what went in.
Learned on my dad's Davenport crew
I grew up crawling through attics on my dad's crew around Davenport, and I started this business in 2021 to run jobs the way he taught me. That means the right order and no shortcuts, even when a shortcut would be faster.
Licensed and insured around your wiring
In Iowa, contractors register with the state's Department of Inspections, Appeals, and Licensing and renew online every year. We're licensed and insured, which matters when our crew is working near your wiring, ceiling lights and furnace vents.
We'll say when it's not insulation
If the roof leaks or a wall is wet, insulation just hides the problem, and I'll tell you that instead of selling it to you. I'd rather lose the job than put in the wrong fix.
- Phone
- (563) 265-6737
- Hours
- Mon–Fri: 7 AM–10 PM, Sat–Sun: 8 AM–9 PM
- Location
- Davenport, IA 52801
If you've got a cold room or an older house with empty walls, call (563) 265-6737 or reach us through the contact page and I'll come take a look.
Get a retrofit insulation estimate for your house
We reply within one business day. The estimate is free, done at your house and comes with no obligation, so I come out, look at your walls and attic and write it up for you. It helps to tell us how old the house is, which walls or attic spaces you want insulated and whether you've seen pebble-like insulation up there, without poking into it.
- Phone
- (563) 265-6737
- Location
- Davenport, IA 52801
- Hours
- Mon–Fri: 7 AM–10 PM, Sat–Sun: 8 AM–9 PM
- Credentials
- Licensed and insured.
Frequently asked questions
What is the best way to insulate the walls of an older house without tearing them open?
Usually it's dense-pack, blowing insulation tightly into the closed spaces between the wall framing through small holes, which suits houses with too little insulation where the work needs to stay small. The holes can go in from outside or inside, and outside holes break through the water barrier behind the siding, which then has to be patched or replaced, while inside holes leave it alone. Which side we work from depends on how we can get to the walls and what shape that barrier is in.
What has to be done before adding insulation to an attic?
Federal attic guidance puts safety first, making sure furnaces and water heaters that vent by gravity still get enough air to burn, then fresh-air ventilation, then sealing the big air leaks. A tighter house can have bigger pressure differences, and leaks are hard to reach once insulation covers them, so an attic job can include more than insulation. I'll tell you at the estimate if your house needs any of that first.
What if my attic has pebble-like insulation?
Leave it alone, because the EPA says to treat vermiculite, the gray-brown or silver-gold pour-in insulation that looks like little pebbles, as if it contains asbestos. If it needs to come out, the EPA says to use a trained professional. Mention it when you call, and don't dig into it to check.
How much does insulation cost in Davenport?
Attic insulation in Davenport usually costs about $1,500 to $4,900 per job. That's the usual range around here for attic work, not our price, and filling walls, air sealing or removing old insulation first will move your number. Call (563) 265-6737 and I'll give you a figure for your house once I've seen it.
Is there an Iowa program that installs insulation?
Yes, Iowa's weatherization program can install high-density wall and attic insulation for households that apply through their county, and it picks each home's work with a computerized energy audit. That work can also include air leak sealing guided by a fan test. Davenport residents apply at their county's Community Action Agency, and the state's Community Action Agencies Unit answers questions at 515-776-8871.
How long does retrofit insulation take in an older house?
The time on site comes down to how many walls we're filling, whether old insulation has to come out first and whether wiring or venting needs fixing before we start. I'll tell you what to expect for your house after I've looked at it. The crew cleans up before they leave, so you're not living in a mess while the work goes on.
Related insulation work
Attic insulation
If your attic only has a few inches of old insulation in it, topping it up is often the first place to start.
Spray foam insulation
When ductwork runs through the attic or a space needs sealing and insulating in one pass, foam is worth a look.