
Sherman Insulation keeps homes in Sherman and surrounding North Texas communities comfortable year-round. We handle everything from spray foam and attic upgrades to crawl space moisture control - and we back every job with a free on-site estimate.

Sherman Insulation is a licensed Insulation Contractor based in Sherman, TX, serving homeowners and businesses across North Texas and southern Oklahoma. We offer 16 insulation and moisture-control services - from spray foam and blown-in attic upgrades to vapor barriers and commercial projects. Whether your home has never been insulated properly or your existing insulation has aged out, we can fix it in one visit.

High energy bills all summer? Spray foam seals air leaks and insulates in one pass, cutting heat gain at the source.
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Attic heat pushing 140 degrees into your living space? Proper attic insulation stops that transfer and lowers cooling costs.
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Thin or settling original insulation? Blown-in fills every corner and gap, bringing older homes up to modern performance.
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Rooms that are never the right temperature? A whole-home insulation audit finds the gaps and fixes them for good.
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Old, wet, or pest-damaged insulation makes things worse. Safe removal clears the way for a proper new installation.
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Cold floors and moisture sneaking up from below? Crawl space insulation stops both problems at the source.
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Drafty walls and uneven room temperatures? Wall insulation seals the envelope and keeps conditioned air where it belongs.
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Air leaks around pipes, wires, and framing waste more energy than thin walls. Air sealing stops the bleeding.
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An uninsulated basement pulls cold air into your home all winter. Proper basement insulation keeps the whole house warmer.
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Need maximum R-value in tight spaces? Closed-cell foam delivers the highest performance per inch and blocks moisture.
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Looking for effective insulation at a lower cost per square foot? Open-cell foam fills large spaces quickly and thoroughly.
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High utility bills in your commercial building? We insulate warehouses, offices, and retail spaces for lasting savings.
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Moisture rising from Grayson County clay soil damages floors and air quality. A vapor barrier stops it at ground level.
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Protecting crawl spaces and foundations from ground moisture starts with a properly installed vapor barrier.
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Insulation without air sealing leaves energy savings on the table. Attic air sealing closes the gaps insulation alone cannot.
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Older Sherman homes were built before modern energy standards. Retrofit insulation brings them up to speed without major renovation.
Learn MoreReach out by phone or through our contact form. We will ask a few quick questions about your home and what you are experiencing - high bills, drafts, or uncomfortable rooms. Most calls take about ten minutes, and we respond within 1 business day to schedule your free on-site estimate.
A contractor visits your home, inspects the attic, crawl space, or walls, and measures what is already there. You get a plain written estimate that breaks down cost by area and material - not a ballpark figure, but a real number you can compare. We explain what we found and why we are recommending what we are.
On installation day, the crew arrives with all equipment and completes the work in a single visit for most jobs. Before leaving, we walk you through exactly what was done, show you the finished area, and answer any questions. There is no curing wait - your home is ready to use immediately and you will feel the difference within the first few days.
We hold a current license through the Texas Department of Licensing and Regulation (TDLR) and carry full liability insurance on every project. You can verify our license number before signing anything - we will give it to you without being asked.
We are a locally owned business, not a franchise or out-of-town crew. We know Grayson County's clay soil, the older housing stock near downtown, and the new subdivisions going up on the north side. That local knowledge shapes how we approach every job.
Every estimate starts with a contractor visiting your home and walking the actual space - not a guess based on square footage alone. You get a written, itemized quote with no pressure to decide on the spot. If you get other quotes, that is fine. We want you to make a confident decision.
We stand behind our installation work. If something is not right after the job is done, we come back and fix it - no runaround, no fee. Materials also carry manufacturer warranties. We put our guarantee in writing before any work begins.
Ready to get started? Call (903) 294-5640 or request a free estimate online.
"Our attic had the original insulation from the 1970s and you could feel the difference room to room every summer. The crew came out, showed us exactly what was there, and finished the whole job in one day. First electric bill after was noticeably lower."
David R., Sherman, TX - Attic insulation
"We had a musty smell coming from our crawl space and soft spots near the back of the house. They installed spray foam in the crawl space and a vapor barrier in the same visit. The smell was gone within a week and the floors feel solid again."
Maria T., Denison, TX - Crawl space insulation
"I got three quotes for spray foam in our new build and these guys were the only ones who walked the whole house before quoting. They caught a gap around the HVAC penetrations that nobody else mentioned. The quote was fair and the work was done on schedule."
Kevin M., Van Alstyne, TX - Spray foam insulation
We respond within 1 business day. There is no obligation to move forward - just a straight conversation about your home and what it needs. After you submit this form, someone from our office will call to schedule a free on-site estimate at a time that works for you.
(903) 294-5640Sherman Insulation is based in Sherman, TX and serves 12 cities and communities across North Texas and southern Oklahoma - including Denison, Pottsboro, and Durant just north of the Red River. Most jobs are scheduled within the same week. Call or submit a request and we will confirm whether we service your area.
In Sherman summers, attic temperatures can reach 140 degrees or higher. Without adequate insulation, that heat radiates straight down into your living space all day - no matter how hard your air conditioner works. The fix is not a bigger AC unit, it is better insulation.
Air leaks around pipes, wiring, and framing often waste more energy than thin insulation. The U.S. Department of Energy estimates air sealing alone can cut heating and cooling costs by 10 to 20 percent. That is why good contractors seal the gaps before adding any new insulation.
Homes built before the 1980s were insulated to standards well below what North Texas's climate demands. The recommended attic R-value for this region calls for insulation that covers the floor joists completely - if you can see the wood boards, you do not have enough.
Grayson County sits on expansive clay soil that holds moisture after rainfall and releases it as the ground dries. For homes with crawl spaces, that moisture works upward into the floor framing and insulation. A vapor barrier stops this cycle before it causes structural damage or mold.
Blown-in loose fill is the most practical choice for most attic upgrades - it fills irregular spaces well and is cost-effective. Spray foam is better for sealing tight gaps and for crawl space insulation where moisture resistance and maximum performance per inch matter. Your contractor can help you decide which fits your home.
Texas requires insulation contractors to be licensed through the TDLR. You can look up any contractor on the TDLR website before signing a contract. If a contractor will not give you their license number, that is a clear warning sign.
Sherman Insulation is a licensed and insured Insulation Contractor based in Sherman, TX, serving 12 cities across North Texas and southern Oklahoma since 2015. We hold an active license through the Texas Department of Licensing and Regulation, which you can verify on the TDLR website before you hire us. Over the years we have completed insulation projects on hundreds of homes - from 1950s ranch houses near downtown Sherman to new builds going up on the north side of the city. We offer 16 insulation and moisture-control services, and every job starts with a free on-site estimate. Learn more about our company.
If your attic joists are visible above the insulation, you are below the recommended level for this climate. Compressed, discolored, or wet insulation has lost a significant portion of its ability to slow heat transfer and should be assessed before adding more material on top.
Insulating over wet or contaminated material traps the problem and makes it worse. Any contractor worth hiring will inspect for moisture damage before recommending installation. The EPA recommends addressing moisture sources before any insulation work begins.
If the existing material is wet, moldy, or shows signs of pest contamination, removal is the right call before anything new goes in. Adding fresh insulation on top of compromised material does not restore performance - it just adds cost without proportional benefit.
If you are not sure what your home needs, the fastest answer is a free on-site inspection - no obligation, no pressure. Call us at (903) 294-5640 or submit a request online and we will get back to you within 1 business day.
Sherman is the county seat of Grayson County, home to roughly 45,000 residents and located about 65 miles north of Dallas near the Oklahoma border. The city has a mix of longtime residents and newer arrivals moving up from the Dallas-Fort Worth area, and the housing stock reflects that history - you will find 1950s brick ranch homes near the historic downtown square and brand-new subdivisions going up on the north and east sides of town. Major employers like Texas Instruments have helped Sherman grow steadily, and Austin College, which has anchored the community since 1876, draws students and faculty to the residential neighborhoods near its campus on Grand Avenue.
Sherman summers are long and demanding - temperatures regularly push above 100 degrees, and the cooling season stretches from late April through October. The region sits on heavy clay soil that expands when wet and contracts during dry spells, which can shift foundations and open gaps in framing over time. Homes built between the 1940s and 1980s - a large share of the local housing stock - were constructed before modern energy standards existed, and many have insulation that has long since settled, compressed, or degraded. Add in the occasional hard freeze and ice storm, and Sherman homeowners face a climate that demands real insulation performance in both directions.
Sherman Insulation has been working in Sherman and the surrounding communities since 2015. Whether your home is in one of the established neighborhoods near downtown or a newer subdivision by Lake Texoma on the north side, we can be on-site quickly and complete most jobs in a single visit. If you are ready to stop paying for energy that is escaping through your attic, walls, or crawl space, call us at (903) 294-5640 or request a free estimate online.
By appointment only, no walk-ins.
Sherman Insulation serves Sherman and 11 surrounding communities - call for a free estimate and see how much you can save.