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Serving Reno, NV and surrounding areas(775) 491-3183
An under-insulated attic is the most visible problem, but the rim joists, crawl space, and wall cavities often account for just as much heat loss. Reno Insulation scopes the whole house in one visit and installs the right product in each zone — attic, walls, and below-grade.
Home insulation in Reno covers the full building envelope — attic floor, exterior walls, rim joists, and crawl spaces — assessed against IECC Climate Zone 5B requirements and installed with the right product for each assembly; most whole-home projects are scoped in one visit and completed within one to two days.
Reno's climate makes a complete home insulation assessment more valuable than a single-zone quote. The city sits at roughly 4,500 feet in the eastern Sierra, where winter overnight lows can drop below 10 degrees Fahrenheit and summer highs routinely exceed 95 degrees. That range means insulation has to perform in both directions across every part of the building envelope — not just the attic, which is the easiest place to add material but rarely the only place losing conditioned air.
For homes undergoing a significant upgrade, the starting point is often retrofit insulation — the methods used to add insulation to existing homes without removing walls or ceilings. Alongside the insulation itself, comprehensive air sealing services address the bypasses and penetrations that let conditioned air move through a building even when cavity R-values look adequate on paper. Both are part of a properly scoped whole-home project, and both are evaluated during the free on-site assessment.
If your heating or cooling costs are rising without a change in usage, the most likely cause is heat escaping through the attic, walls, or floor in winter and penetrating the same paths in summer. At Reno's 4,500-foot elevation, even moderate insulation shortfalls translate to significant monthly costs.
Nevada's energy code has tightened substantially since the 1980s and 1990s. Homes built before the mid-1990s were permitted under requirements that called for as little as R-11 in attics — well below the current R-49 minimum. Age alone is a reliable signal that a professional assessment is overdue.
Drafts that are noticeable at interior electrical outlets or along exterior walls usually indicate that the wall cavities behind them are poorly filled or that air is bypassing the insulation entirely through gaps in the framing. This is separate from the window itself and points to a wall or air sealing issue.
A new furnace or air conditioner that fails to meaningfully improve comfort is often fighting a losing battle against the building envelope. If your mechanical system was recently replaced and the rooms still feel off, the problem is almost certainly the insulation and air sealing, not the equipment.
Reno Insulation handles all major insulation assemblies in residential homes, using the product best suited to each location rather than defaulting to a single material for every job. A whole-home project typically begins with the attic, where the highest R-value gain per dollar is available and where most existing Reno homes are most significantly under-insulated.
Attic insulation upgrades use blown-in cellulose or fiberglass to bring the floor assembly to the R-49 minimum required in Climate Zone 5B under Nevada's adopted energy code. We seal air bypasses — top plates, plumbing penetrations, recessed light boxes — before the first bag is loaded, because DOE research consistently shows that air infiltration through these bypasses undermines effective R-value even when installed depth looks correct. The retrofit insulation approach used in existing homes allows material to be added directly over what is already in place without demolition, making it cost-effective compared to a full replacement.
Exterior wall assemblies in older Reno homes with closed cavities are upgraded using dense-pack blown-in cellulose injected through small access holes in siding or drywall. The dense-pack density resists settling and meaningfully reduces air infiltration through the wall plane. Rim joists — the wood framing at the perimeter of the foundation — are typically filled with spray polyurethane foam, which conforms to the irregular geometry and provides both insulation and vapor control in a single application. Crawl spaces and below-grade assemblies also benefit from spray foam or rigid board insulation depending on the specific conditions present.
Paired with the insulation work itself, comprehensive air sealing services address the gaps that drive stack-effect infiltration — the mechanism by which cold outdoor air enters the building low and pushes warm air out through the attic. The DOE estimates that air leakage accounts for 25 to 40 percent of heating and cooling energy use in a typical home. In Reno's high-desert climate with pronounced pressure differentials, sealing first and insulating second is standard best practice.
Best for homes in Reno's existing housing stock that are below the R-49 minimum; blown-in material adds directly over existing layers without demolition.
Best for older Reno homes with closed wall cavities where dense-pack blown-in provides a retrofit solution without removing drywall or siding.
Best addressed with spray foam, which conforms to irregular geometry and provides both insulation and vapor control in tight below-floor assemblies.
Best for homeowners targeting NV Energy rebates or the federal 25C tax credit, where a documented whole-home approach produces the strongest energy savings evidence.
Reno's growth over the last decade has brought two very different types of home insulation projects. In the city's established neighborhoods — Midtown, Old Southwest, and the streets near the University of Nevada campus — the work is almost entirely retrofit: upgrading homes from the 1950s through 1980s that were built under energy codes that required a fraction of today's R-value minimums. These homes commonly have R-7 to R-11 in the attic, uninsulated rim joists, and wall cavities that were never insulated or contain material that has settled and degraded over forty-plus years.
The outer communities have a different profile. In Spanish Springs and Fernley, newer tract homes built in the 2000s and 2010s were typically insulated to code minimums at the time — which may still fall short of today's R-49 attic standard. In Carson City, the housing stock spans decades, creating a similar mix of pre-energy-code homes and newer construction that may need topping up. Throughout the region, NV Energy rebate programs and the federal 25C tax credit provide financial incentives that make a full-scope home insulation project more accessible than the sticker price suggests.
Nevada's adopted energy code requires insulation contractors to be licensed through the Nevada State Contractors Board, and Washoe County's Regional Building Department governs permits and inspections for projects where code compliance documentation is required. Homeowners who work with a licensed contractor avoid the risk of failed inspections, voided warranties, and the absence of legal recourse that accompanies hiring an unlicensed crew.
Contact Reno Insulation by phone or through the online form. We respond within 1 business day to gather information about your home and schedule a free on-site assessment at a time that works for you.
A licensed technician walks the attic, inspects accessible wall assemblies and crawl spaces, and measures existing insulation depth in each zone. We identify air leakage points, flag any conditions that need to be addressed before installation, and confirm whether your project triggers a permit or energy compliance review with the Washoe County Regional Building Department. The estimate is written and itemized — no vague square-footage quotes.
Each assembly gets the right product for its conditions. Attic floors receive air sealing followed by blown-in material to the specified settled depth. Crawl spaces and rim joists may receive spray foam. Wall cavities in older homes receive dense-pack blown-in through small access holes. Most whole-home projects are completed in one or two days depending on scope.
We provide product labels, installed R-value records, and any documentation needed for NV Energy rebate applications or IRS Form 5695 claims under the federal 25C Residential Energy Efficiency Tax Credit. Required permits are closed out with any necessary inspections scheduled.
One free visit covers attic, walls, rim joists, and crawl space. We identify every zone that is losing conditioned air and provide a written quote by assembly.
(775) 491-3183Nevada law requires an NSCB license for any insulation project valued at $1,000 or more. Our license is active, verifiable through the NSCB public lookup tool, and covers every product type and assembly we install. This is the credential that gives homeowners legal recourse if anything goes wrong.
We prepare the product labels, R-value records, and contractor documentation that NV Energy and the IRS 25C tax credit both require. Homeowners who use our paperwork at project completion have captured additional dollars back that offset a meaningful portion of the installation cost.
A home insulation job scoped from a single zone — usually the attic — routinely misses the rim joists, crawl space, and wall cavities that account for a significant share of total heat loss. Our assessment covers all accessible assemblies so the quote reflects the full picture, not just the easiest part to sell.
We have completed whole-home insulation projects across Reno's established and newer neighborhoods — from pre-1960 homes in Midtown to new construction in South Meadows. Local experience means we recognize the specific conditions in each area without treating every house the same.
The combination of verified licensing, whole-home scoping, and rebate-ready documentation means homeowners get both a properly installed job and the paperwork to recover a portion of the cost through NV Energy programs or the federal tax credit. These are not extras added after the fact — they are part of how every project is delivered. You can verify our NSCB license directly through the Nevada State Contractors Board before signing anything.
Upgrade an existing Reno home's insulation without demolition — retrofit methods reach closed wall cavities and other hard-to-access assemblies that standard installation cannot address.
Learn moreAir sealing addresses the gaps and bypasses that let conditioned air escape regardless of insulation depth — the step that most often separates a performing installation from one that disappoints on the energy bill.
Learn moreReno Insulation provides free whole-home assessments with no obligation. Schedule before the cold season arrives and put this winter's NV Energy savings to work.