Insulation contractor in Union Gap, WA - sealed attics and warmer rooms
C&D Yakima Insulation Solutions is an insulation contractor based in Yakima that insulates attics, walls and crawl spaces in Union Gap homes, rentals and commercial buildings, sealing the air leaks first so the new insulation does its job.

- Licensed and insured.
- Free on-site estimates.
- Replies within 1 business day.
Union Gap houses, rentals and commercial buildings
Union Gap sits right next to Yakima, where we're based, so it's one of the closest places we work. Our calls here come from homeowners with a cold bedroom or a room over the garage that never feels right, landlords getting a rental ready between tenants, and property managers looking after shops and offices in the city's commercial areas. It's much the same mix we see in Terrace Heights.
A lot of houses here have been added onto, patched or rented out over the years, and the attic or crawl space usually tells that story. So my first visit is less about selling insulation and more about finding what's already there, what got missed and what has to be fixed first.
Insulation services for Union Gap properties
Spray foam insulation
When ductwork runs through your attic, spray foam seals the air and insulates in one pass, which is why it's worth its higher cost there.
Attic insulation
Many older attics here have only a few settled inches left and bare spots at the edges, so we build the depth back evenly after sealing.
Blown-in insulation
Loose fill blown in through a hose tops up an attic without tearing anything out, and it's usually the best value once the gaps are sealed.
Home insulation
When the whole house is drafty and hot upstairs, we look at the attic, walls and crawl space together and start with what has to come first.
Insulation removal
Old batts that got wet or filled with droppings have to come out before anything new goes in, or the smell and the problem stay.
Crawl space insulation
Cold floors over a crawl space are a common call in older Union Gap houses, so we deal with damp spots and seal gaps before insulating underneath.
Wall insulation
Older houses and add-ons here sometimes have empty or half-filled wall cavities, which we can fill through small openings without gutting the room.
Air sealing services
In drafty Union Gap rentals and older homes, closing the gaps around pipes, wires and doors is often the change you notice first, before any insulation goes in.
Basement insulation
A cold basement usually loses heat through bare concrete walls and the rim joist, where the floor framing sits on the foundation, so that's where we insulate.
Closed-cell foam insulation
Closed-cell foam, a dense foam that also blocks moisture, suits damp crawl space walls and rim joists where loose insulation would soak up water.
Open-cell foam insulation
Softer, lighter open-cell foam works well on rooflines and in interior walls, sealing air and dulling sound where moisture isn't the main worry.
Commercial insulation
Property managers with shops and offices in Union Gap's commercial areas call us for ceilings, walls and metal buildings, and we plan the work around business hours.
Crawl space vapor barrier
A heavy plastic sheet over the crawl space dirt helps keep ground moisture out of the floor framing and the insulation, so we lay it before insulating.
Vapor barrier installation
In walls, basements and additions, a vapor barrier on the right side of the insulation helps keep moisture from collecting in the framing, where rot starts.
Attic air sealing
Before topping up an attic, we seal around can lights, pipes, wiring holes and the hatch, and we keep the eave vents clear so the attic can breathe.
Retrofit insulation
Landlords in Union Gap often call between tenants, when we can add insulation to a finished house through the attic, crawl space and small wall openings.
A free on-site insulation estimate in Union Gap
Send the form and we'll get back to you within one business day to set a time. I'll come out myself, look at the job and write up a free estimate, with no pressure and no obligation.
- Based in
- Yakima, WA 98901
- Hours
- Mon–Fri: 8 AM–9 PM, Sat–Sun: 6 AM–9 PM
What working inside Union Gap city limits involves
Inside city limits, building permits come from the City of Union Gap's Building Division, and the city says many things decide whether a job needs one, so I check before we put you on the schedule instead of guessing. If your job needs a permit, we take care of the application, and if we're not sure yet, we tell you that up front and find out. You can also ask any contractor working here for their Union Gap business license, which the city requires of every business working inside its limits, along with their state registration. We're licensed and insured. Satisfaction guaranteed on every job.
The price of a job here mostly turns on what's already in the attic or under the floor, how much cleanup and sealing comes before the insulation and whether foam makes sense, and the schedule turns on that prep and on whether a permit is involved. The estimate I write lays out what I found, what we'd do about it and the price. We do the same work down the valley in Toppenish, where we see much the same older houses, rentals and crawl spaces that need work before insulation does any good.
Why Union Gap houses lose heat and comfort
In older Union Gap houses, the attic is usually where the power bill leaks out. We often find a few inches of insulation that's settled over the years, piled deep in the middle and thin at the edges, which is backward, with the eave vents buried and gaps left open around lights, pipes and the hatch. That's why I look before I quote, and why our crew seals those gaps and clears the vents before anything new goes in, because insulation laid over a draft just sits there fighting it.
Crawl spaces are the other half. Cold floors usually trace back to bare dirt, sagging or missing batts, or old insulation that's wet or full of droppings, and new material laid over that only buries the problem. We pull out what's bad, lay a vapor barrier and then insulate.
What to expect when you call us in Union Gap
Here's how it goes after you reach out, from my first look at your house to the walk-through when we're done.
Call or send the form
Call (509) 517-6081 or send the form and tell us what's bothering you, like a cold room, a high power bill or a damp crawl space. We'll set a time for me to come out that works around your day.
I look and write it up
I go up in the attic or under the house myself, show you what I find and write an estimate, so you see the price before you decide anything. If a permit's needed, the city's general estimate for review is up to 2-3 weeks depending on how many applications are already waiting, sometimes with fire or utilities review added, and we set the start date around it.
Prep and sealing come first
Our crew clears out anything wet or dirty and seals the gaps before new insulation goes in, because once insulation covers a gap, we can't get to it. I'm on site checking the work as it goes.
We walk through it together
When the crew's done, I go over the finished work with you before we leave. You'll know what's in there now and what we did about the problems we found.
Questions about insulation in Union Gap
How do I find out if my insulation job needs a permit in Union Gap?
Call the city's building office at 509-575-3638, since the city asks people to call about any building project inside city limits, or let us make that call for you. Many things decide whether work needs a permit, so it's worth asking before the job is on the calendar, and if it does need one, we handle the application.
How do I check that an insulation contractor is registered in Washington?
Ask for their registration with the state Department of Labor & Industries, because Washington requires every construction contractor to register there and to be bonded and insured. To register, a specialty contractor buys a $15,000 surety bond and a general contractor a $30,000 one, and on any home job of $1,000 or more, a registered contractor has to give you a written disclosure notice.
What do Union Gap's flood zone rules mean for insulating my house?
If your property is in one of the city's mapped flood zones, work that alters a structure there has to fully comply with the city's flood rules, and a violation is a misdemeanor. The city's permit application asks whether the property is in the flood area, and the flood maps are kept at the city's Community Development office, so if you're not sure, I'll find out before we plan anything.
How much does it cost to insulate an attic in Union Gap?
There's no honest number until I've seen it, because the price turns on what's up there now and what has to happen before new insulation goes in. Hauling out wet or dirty insulation, sealing a lot of gaps, tight access and choosing foam all add to it, while a clean attic that only needs sealing and a top-up of blown-in costs the least. Your estimate spells out each part so you can see where the money goes.
What is the best way to insulate an older house in Union Gap?
For most older houses, sealing the gaps and then topping up the attic with blown-in insulation gives you the most comfort for the money. Spray foam costs more because it seals air and insulates at once, and I'd only push for it when the ductwork runs through the attic.
Do we have to leave the house during spray foam insulation in Union Gap?
Usually yes for spray foam, and the foam maker's instructions set the re-entry time, the point when you, the kids and the pets can come back in. I'll go over that with you at the estimate so you can plan around it, and for blown-in or air sealing work you can usually stay home.
Book your Union Gap insulation estimate
If your attic or crawl space needs cleanup or a fix before insulation, it's better to learn that before you buy anything, so call (509) 517-6081 or send the form.




