903 Spray Foam
About Us
Most homeowners who call us have already replaced the HVAC unit. They have caulked windows, added weatherstripping, and done everything the internet suggested. The bills stayed high anyway. Nine times out of ten, the insulation is the culprit nobody checked.
903 Spray Foam exists to diagnose that problem correctly and fix it with the right material for your specific building. Peter Fehr walks every property himself before a single recommendation is made. Our open-cell foam insulation installs are backed by USA-made materials and paired with spray foam insulation services that cover the full scope, from assessment to final cleanup.
Is Your Attic Working Against You?
In Paris, TX, an uninsulated or under-insulated attic is like leaving a window cracked all summer. Your AC runs constantly, your upstairs stays miserable, and your utility bill climbs. Our open-cell spray foam installer team seals the attic roofline directly, stopping heat from pushing through and forcing your system to overwork.
Open-cell foam reaches an R-value of 3.7 per inch and fills every gap traditional batts miss. The result is a home that holds its temperature without working overtime.
What About Crawl Spaces and Walls?
The places you never see are often where the most energy escapes. Crawl spaces pull cold air under your floors all winter. Uninsulated interior walls let sound and temperature bleed between rooms. Our home insulation services cover all of it, from below the floor to behind the drywall, using open-cell spray foam that seals, expands, and stays put.
As your open-cell spray foam insulation contractor in Paris, TX, we treat the whole building, not just the obvious spots, because half-measures show up on your utility bill every single month.
Old House, New Problem?
Older homes in Paris, TX were not built for today's energy costs. Gaps behind walls, settling around windows, and outdated batt insulation all add up to a house that fights you every season. Our spray foam insulation installers have worked inside century-old homes where the original insulation had long since compressed and failed.
Open-cell foam expands to fill cavities no other product reaches. We assess the property honestly, tell you exactly what we find, and price it fairly with no surprises on the invoice.
Everything You Need
Paris attics routinely hit 140 degrees by mid-morning in July, and that heat radiates through whatever sits below it regardless of R-value. Applying open-cell spray foam insulation directly to the underside of the roof deck changes that dynamic.
The attic stops being an unconditioned heat sink and starts behaving as part of the conditioned building envelope. Your system runs less, and the difference shows up on the first utility bill after installation through our spray foam insulation services.
Paris attics routinely hit 140 degrees by mid-morning in July, and that heat radiates through whatever sits below it regardless
Paris attics routinely hit 140 degrees by mid-morning in July, and that heat radiates through whatever sits below it regardless of R-value. Applying open-cell spray foam insulation directly to the underside of the roof deck changes that dynamic.
The attic stops being an unconditioned heat sink and starts behaving as part of the conditioned building envelope. Your system runs less, and the difference shows up on the first utility bill after installation through our spray foam insulation services.
Electrical penetrations, shifted studs, compressed corners, framing that settled over decades. Older homes carry all of it, and standard batts never addressed any of it. Open-cell foam insulation is applied directly into those cavities and expands to fill the actual geometry of what is there, not the ideal geometry of a clean new frame.
The wall starts performing closer to its rated value under real conditions. For a spray foam insulation contractor working in Northeast Texas, this application is one of the highest-return upgrades available per square foot.
Electrical penetrations, shifted studs, compressed corners, framing that settled over decades. Older homes carry all of it, and
Electrical penetrations, shifted studs, compressed corners, framing that settled over decades. Older homes carry all of it, and standard batts never addressed any of it. Open-cell foam insulation is applied directly into those cavities and expands to fill the actual geometry of what is there, not the ideal geometry of a clean new frame.
The wall starts performing closer to its rated value under real conditions. For a spray foam insulation contractor working in Northeast Texas, this application is one of the highest-return upgrades available per square foot.
The rim joist runs along the top of your foundation wall, and in most Paris homes it is either bare or packed with a deteriorating batt that stopped performing years ago. Outside air enters directly through that gap into your floor system year-round.
Open-cell spray foam seals it completely in a single pass. Understanding the open cell spray foam R-value for this specific area helps size the install correctly, and 903 Spray Foam handles that calculation as part of every free property assessment in Lamar County.
The rim joist runs along the top of your foundation wall, and in most Paris homes it is either bare or packed with a deteriorating
The rim joist runs along the top of your foundation wall, and in most Paris homes it is either bare or packed with a deteriorating batt that stopped performing years ago. Outside air enters directly through that gap into your floor system year-round.
Open-cell spray foam seals it completely in a single pass. Understanding the open cell spray foam R-value for this specific area helps size the install correctly, and 903 Spray Foam handles that calculation as part of every free property assessment in Lamar County.
Why Choose Us?
Peter Fehr Assesses Every Property in Person: Before any open-cell spray foam is recommended, the owner walks your property himself and identifies exactly where conditioned air is being lost.
No Subcontractors on Any Job: The team that quoted the project is the team that installs it. Every open-cell foam insulation job in Lamar County is completed directly by 903 Spray Foam.
BBB-Accredited With an A- Rating: Earned within the first year of operation, that rating reflects how we handle every spray foam insulation services project in Paris, TX and the surrounding areas. Honestly, professionally, and without shortcuts.
USA-Made Materials Every Time: We do not downgrade to cheaper imported foam to protect margin. Every open-cell spray foam insulation install uses domestic product rated for Northeast Texas heat and humidity.
One Price, No Surprises: The quote from the walkthrough is what appears on the invoice. Any scope change gets discussed with you before 903 Spray Foam touches anything additional.
How we work

Every open-cell spray foam insulation project starts with a free consultation. We evaluate your Paris, TX property, identify problem areas, and determine whether open cell foam insulation fits your needs and budget before recommending anything. Nothing moves forward until we fully understand your specific situation.

After the assessment, we build a detailed plan covering treatment areas, recommended thickness for optimal open-cell spray foam R-value performance, timeline, and transparent pricing. Before our spray foam insulation services begin at your Paris, Texas property, you know exactly what to expect with zero hidden fees.

Our technicians arrive on time, protect your belongings, and apply open-cell foam with precision throughout your Paris, TX home. As a trusted spray foam insulation contractor in Northeast Texas, we keep work areas clean and complete most residential projects within one to two days.

Before leaving, we perform a thorough inspection confirming your open-cell insulation meets our standards for coverage and thickness. Our spray foam insulation services do not stop at the door. The 903 Spray Foam team stays available for questions and support long after the job is done.
Testimonials
Proudly Recognized & Trusted
Better Business Bureau Accredited - As a BBB Accredited Business, 903 Spray Foam upholds the highest standards of integrity, customer service, and professionalism. Our clients know they’re working with a team that’s trustworthy, responsive, and committed to doing things right.
Member of the Paris-Lamar County Chamber of Commerce - We’re proud to be an active member of the Paris-Lamar County Chamber of Commerce, supporting local businesses and contributing to the growth and success of our community here in Sulphur Springs, Texas.
Best of BusinessRate 2026 Award Winner - Recognized with the Best of BusinessRate 2026 Award, 903 Spray Foam stands out for delivering exceptional service, quality workmanship, and consistent customer satisfaction. This recognition reflects our commitment to excellence and the trust we’ve built with homeowners and businesses throughout Sulphur Springs, Texas.
Still Not Sure?
Open Cell Spray Foam FAQs
Open-cell spray foam is a soft, expanding insulation material that cures as a continuous air barrier across every surface it contacts, sealing gaps and voids that rigid batts and blown insulation physically cannot reach. Unlike fiberglass or cellulose, it addresses both thermal resistance and air infiltration in a single application, which is why it consistently outperforms standard insulation in older Paris, TX homes.
Open-cell spray foam R-value sits between 3.5 and 3.7 per inch, which is lower than closed-cell on paper but does not reflect the full performance picture. The continuous air seal open-cell creates eliminates the infiltration losses that reduce the real-world performance of higher-rated materials, making it highly effective for the heat and humidity conditions Paris properties deal with year-round.
The open-cell vs closed-cell spray foam decision comes down to where the product is being applied and how much moisture exposure that area receives. Open-cell is the right fit for attics, interior walls, and rim joists in Paris residential properties, while closed-cell is better suited for crawl spaces, basements, and commercial structures where moisture resistance and higher R-value per inch are the priority.
Open-cell foam insulation performs best in attic roof deck applications, exterior wall cavities, and rim joist areas where air infiltration is the primary driver of energy loss in older Lamar County homes. Attic application in particular tends to produce the most immediate and measurable drop in cooling costs once the foam converts the attic from an unconditioned heat sink into part of the building envelope.
Most residential open-cell spray foam insulation projects in Lamar County wrap up within one to two days depending on the square footage and number of application areas involved. 903 Spray Foam provides a written project timeline at the free consultation so there are no scheduling surprises once work begins.
Yes, you will need to vacate during the application and for a few hours after while the foam finishes curing and any residual odor dissipates from the space. Once fully cured, open cell spray foam is non-toxic and actively improves indoor air quality by sealing out the allergens, pollutants, and humid outside air that were previously entering through gaps in the building envelope.
903 Spray Foam delivers spray foam insulation services throughout Northeast Texas, including Paris, Sulphur Springs, Greenville, Honey Grove, Dallas, and Sumner, TX where the company is based. If your property falls outside those listed markets, call (903) 609-5907 to confirm whether your location falls within the current service range. Check locations we serve here.
In most cases involving deteriorated, compressed, or moisture-damaged material, yes, the existing insulation needs to be removed before open cell foam insulation is installed. Layering new foam over a compromised substrate undermines the performance of the entire system, and 903 Spray Foam includes complete insulation removal as a standalone service for Paris, TX properties that need a full reset first.
Open-cell spray foam insulation works well in commercial spaces where interior air sealing, thermal performance, and acoustic control are the main objectives, such as climate-controlled offices and multi-unit buildings across Lamar County. For metal structures, warehouses, or any commercial application with direct moisture exposure, our spray foam insulation contractor typically recommends closed-cell foam based on its higher R-value and superior moisture resistance.
Federal insulation tax credits of up to $1,200 may still be available to qualifying Paris homeowners who upgrade through a certified spray foam insulation contractor before the credit window closes. Call 903 Spray Foam at (903) 609-5907 to find out whether your property and project scope qualify before that deadline passes.
Call us today or schedule your consultation online.

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