Reliable Kennewick Insulation Services
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Retrofit insulation in Kennewick WA - warmer rooms without opening your walls

Cold rooms, drafts or a climbing power bill in an older house? We seal the gaps and fill the walls and attic you already have.

Request an estimate(509) 396-5461
Wood-framed attic ceiling filled with tan insulation batts, with exposed rafters and a scaffold at left.
  • Fully licensed and insured.
  • Free on-site estimates.
  • Expect a reply within 1 business day.

Retrofit insulation for walls and attics

  • Drill and fill for walls

    We drill small holes near the top of each wall cavity and fill it with blown-in insulation, loose fill sent through a hose, which suits finished walls that are empty.

  • Attic sealing and top-up

    We close the gaps in the attic floor, then add insulation over what's already there if it's dry and clean, which suits most attics in older houses.

How do you insulate an older house without tearing out the walls?

Retrofit insulation adds insulation to a house that's already built, usually by filling the walls through small holes and sealing and topping up the attic, so your finished walls stay in place. In Kennewick, we plan it around anything in your house that needs fixing first.

Most calls start with a room that won't warm up, a hot upstairs or a power bill that keeps climbing in a house where nobody's sure what's in the walls. What you pay turns on how many walls need filling, how big the attic is, whether we drill from inside or outside, and whether foam or loose fill suits it. The schedule turns mostly on what has to happen before we start, like a roof repair or old insulation that needs a separate firm. Your written estimate spells out what we'd do at your house and why.

Retrofit insulation, from repairs to patched holes

In an older home, I look first for anything that has to be fixed before new insulation goes in, and then pick the least disruptive way into your walls and attic.

  • Repairs go first

    If the roof leaks or old knob and tube wiring is live, that repair comes first in the plan, since insulation would only bury it.

  • Air sealing before insulation

    Air sealing, closing the leaky gaps, comes first, with metal blocking at hot flues and covers over can lights not rated for insulation.

  • Walls filled and patched

    We come in from whichever side does the least harm, then plug, patch, sand and paint the holes once each cavity is full.

  • The right fill for the attic

    For attic insulation, sealing and topping up loose fill usually wins, and spray foam insulation earns its extra cost when ducts run up there.

Why homeowners hire Reliable Kennewick Insulation Services

I started this business in Kennewick in 2013, after learning insulation on another contractor's crew, and we're known for sealing the gaps before any insulation goes in. If you'd like me to look at your house, call (509) 396-5461 or use the form.

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  • I see your house myself

    I come out to look at each job myself, and our installers do the work, with me checking it before we call the job done and walk you through it.

  • Full depth out to the edges

    Attics often end up deep in the middle and thin at the eaves, so we carry the depth to the edges and keep the eave vents clear so the attic can breathe.

  • Fully licensed and insured

    We're fully licensed and insured, which matters when a crew is drilling into your walls and working in your attic. Our work is satisfaction guaranteed.

What happens when you call about retrofit insulation in Kennewick?

We plan the job around your house and how you live in it, so the visit comes first and the work starts from a plan you've seen in writing.

Request an estimate

or call (509) 396-5461

  1. You call or send the form

    Call (509) 396-5461 or use the form, and we set a time for me to come out to your house.

  2. I look at the space

    I go up into the attic, look at the walls and ask how the house has been behaving, like cold rooms, drafts or a rising power bill.

  3. You get a written estimate

    The estimate lists each step in the order we'd do it and why it comes there, including any repair that has to happen first.

A worker in protective gear sprays white foam insulation into the open wall cavity of a wood-framed building.

A written retrofit plan for your walls, attic and repairs

Tell us the home's age, how you reach the attic and how it's heated, and we'll reply within one business day to set up my visit. The estimate is free, done at your house, with no obligation.

(509) 396-5461

Questions about retrofit insulation in Kennewick

How much does blown-in attic insulation cost in Kennewick?

Installing blown-in attic insulation across the US usually costs about $4 to $7.50 per square foot, and that's a national figure, not our price. What moves it at your house is how much sealing and repair the attic needs first, how much is already up there, and whether walls are part of the job. Your estimate writes out what we'd do and why.

Will drilling my walls from the outside damage them?

It can, because drilling from outside breaks the wall's water barrier, the layer behind the siding that sheds water, and that layer then has to be patched or replaced. Filling from inside leaves it alone, so we pick the side based on access and the shape that layer is in, and outside work can add repair cost. If your house was built before 1980, you should also know about lead safety rules, which matter more the more the outside walls get disturbed.

What has to be fixed in an old attic before new insulation goes in?

Besides a leaking roof and live knob and tube wiring, bathroom fans ducted into the attic and unvented gas fireplaces should be dealt with before insulation goes in. Vermiculite is on the list too, and it needs its own handling. We put these repairs at the front of the plan and the budget, so you know about them before you agree to anything.

What should I do if my attic has vermiculite insulation?

Leave it alone, because the EPA advises treating vermiculite as if it contains asbestos and having a trained professional handle it if it has to come out. Removal should be done by a trained and accredited asbestos abatement contractor, separate from whoever assessed it, so plan on a separate firm. We don't disturb it, and if I find it on my visit, it goes in the estimate as a step that comes before ours.

How do I get my attic ready for insulation day?

Clear out whatever's stored up there, because boxes and other items keep the insulation from lying level and touching the attic floor. Make sure the hatch is easy to reach too, since that's how the crew and the hose get in.

What causes a room to stay cold after insulation was added?

Usually it's air, not a lack of insulation, because gaps around can lights, pipes and the attic hatch were never sealed and cold air moves right through the new material. Walls that were never filled and attic insulation that's thin at the edges cause it too. On my visit I look for all three before suggesting more insulation.

What to check before retrofit insulation in Kennewick

If your house heats with electricity, some homes may qualify for Benton PUD's low-income home rebates on weatherization work such as insulation. They cover electrically heated single-family and manufactured homes in the PUD's service area, customers income verified by Benton Franklin Community Action Connections may qualify, and all the work has to be done by contractors approved for the program. Because the program decides who can do the work, check with the PUD before anything starts and tell me at the visit, so the plan fits.

On the Washington side, every construction contractor has to register with L&I, the state agency that handles it, and L&I's contractor lookup shows whether a registration is active, whether workers' comp is paid up for the crew, and any safety violations or lawsuits against the contractor's bond. We're based in Kennewick and do the same retrofit work across the cities around it on both sides of the state line, including Pasco and Richland, where we see plenty of older houses with empty walls and thin attics.