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Serving Duncan, OK and surrounding areas. (580) 860-0708
Duncan homeowners deal with brutal summers, Oklahoma wind, and homes that were never sealed properly. Spray foam fixes all of that in one installation - air sealing and insulation at the same time.
Spray foam insulation in Duncan, OK is a liquid material applied to walls, attics, and crawl spaces - it expands on contact and hardens into a solid layer that seals air leaks and insulates at the same time, and most residential jobs are complete in one to two days.
Unlike fiberglass batts, spray foam fills every gap and crack it touches. That matters in Duncan, where Oklahoma wind actively pushes outside air through tiny openings in your home's exterior. If your monthly electric bill climbs every June and your AC runs nonstop in July, gaps in your building envelope are a major reason why. Our attic insulation service works alongside spray foam to address heat loss from above.
Spray foam comes in two types. Open-cell foam is softer and more flexible, suited for interior walls and attics in certain configurations. Closed-cell foam is denser and acts as a moisture barrier - learn more about our closed-cell foam insulation service for crawl spaces, basements, and exterior-facing applications.
If your electric bill jumps dramatically from May through September and your AC never catches up, your home is losing conditioned air through gaps in the attic, walls, or crawl space. Duncan summers are long and brutal, and an air conditioner working against a leaky envelope runs constantly without ever winning.
Oklahoma wind is persistent. If you feel a breeze near an electrical outlet on an exterior wall or notice cold rooms when the wind picks up, outside air is getting in. This is especially common in Duncan homes built before the 1990s, where framing gaps were never properly sealed.
If floors above the crawl space feel cold in January or you smell mustiness from below, your crawl space is working against you. Duncan's clay soils and humidity make crawl spaces prone to moisture, and spray foam on the walls and rim joists can seal those gaps and reduce moisture intrusion.
If you peek into your attic and the insulation looks flat, thin, or discolored - or if you can see floor joists through it - it is not providing much protection. Homes built before 1990 in Duncan often have original insulation that has settled or degraded over decades.
Duncan Insulation applies spray foam in attics, crawl spaces, rim joists, wall cavities, and basement walls. For most homes, the highest-impact areas are the attic floor and the crawl space walls - these are where conditioned air escapes most easily and where Oklahoma's heat and moisture do the most damage. We assess your home before recommending where to start, so you spend your money where it actually matters. Our attic insulation service covers blown-in and batt options if spray foam is not the right fit for your attic layout.
For homes with serious moisture exposure, our closed-cell foam insulation provides both insulation and a vapor barrier in one application. Open-cell foam is the right choice for interior walls and attics where some vapor permeability is acceptable. We explain the tradeoffs in plain language during your estimate so you can make a confident decision.
Best for interior walls, attic floors, and areas where vapor permeability is acceptable.
Best for crawl spaces, basements, rim joists, and exterior-facing walls where moisture resistance is critical.
Applied to the attic floor or underside of the roof deck to stop heat transfer from above.
Applied to crawl space walls and rim joists to seal gaps and reduce moisture intrusion.
Duncan sits in south-central Oklahoma, where summers regularly push above 100 degrees and winters can drop well below freezing with little warning. That wide temperature swing means your home's insulation is working hard in both directions all year. A significant portion of Duncan's homes were built between the 1950s and 1980s, when insulation standards were far lower than today - if your home was built before 1990, there is a good chance it is losing conditioned air through gaps that spray foam could seal permanently. Residents in Marlow, OK face the same climate challenges across Stephens County.
Oklahoma is one of the windiest states in the country, and Duncan is no exception. Wind does not just make it feel colder - it actively pushes outside air through tiny cracks in your home's exterior, around electrical outlets, and through gaps in the attic floor. The clay soils under Stephens County also swell and shrink with the seasons, opening small gaps in foundations and floor framing over time. We regularly help homeowners throughout the area - including communities like Chickasha, OK - address exactly these conditions with spray foam.
We respond within 1 business day. A quick conversation about your home and what you are noticing - high bills, drafts, cold floors - helps us prepare for the visit. No cost, no obligation.
We come to your home, look at the areas to be treated, and check for any issues - moisture, old damaged insulation - that should be addressed first. You get a written estimate that explains what we found and what we recommend.
Our crew protects your surfaces from overspray and applies the foam at the correct thickness. Most jobs are complete in one to two days. The foam expands and sets within minutes of application.
After spraying, we give you a specific re-entry time - typically two to four hours - and walk through the completed work with you before we leave. Any questions after installation, call us.
We respond within 1 business day - no waiting around. There is no obligation to move forward after we talk. Once you submit a request, someone from our office will call to schedule a free on-site estimate at a time that works for you.
(580) 860-0708We live and work here. We know the older housing stock near downtown, the ranch-style homes from the 1960s, and the newer subdivisions on the north side. That familiarity means faster scheduling and advice grounded in local conditions.
Every job we do is backed by proper licensing and insurance coverage. If you ever sell your home, a properly documented, permitted installation by a licensed contractor protects your investment.
We do not make you wait a week to hear back. Submit a request today and someone from our office will call to schedule your free on-site estimate - no obligation, no pressure.
You will never be surprised by the bill. We inspect your attic or crawl space first, then give you a written estimate that spells out exactly what work will be done, what materials will be used, and the total cost - before we touch anything.
Spray foam is permanent - it bonds to the surfaces it touches and stays there for the life of your home. That means getting it right the first time matters. We combine local knowledge with a no-surprises process so you can feel confident from the first call to the final walkthrough. For information on industry standards and best practices, the Spray Polyurethane Foam Alliance publishes contractor guidelines and homeowner resources.
Pair spray foam with comprehensive attic insulation to stop heat from pouring into your living space all summer long.
Learn MoreClosed-cell foam adds a moisture barrier and structural rigidity - ideal for crawl spaces, basements, and exterior walls.
Learn MoreOklahoma summers are not getting cooler - the sooner your home is properly sealed, the sooner your bills start coming down.