
Stop paying to heat air that escapes through your basement. We insulate and seal the lower level of your home so every room above stays warmer all winter.

Basement insulation in Rohnert Park creates a thermal barrier between the cold ground and the living space above, most jobs take one to two days to complete, and the difference in floor temperature is usually noticeable within the first heating cycle after installation.
If you live in a Rohnert Park home built before the 1980s, there is a good chance your basement has little or no insulation at all. That era of construction used energy standards that fall far below what is required today, and the result is a lower level that lets heat pour out through the floor all winter. Basement insulation stops that loss by keeping the entire lower level inside the home's thermal envelope.
Moisture is the other factor in Rohnert Park basements. The county's wet winters push dampness into unprotected spaces, and a damp basement can quietly lead to mold if left unaddressed. Pairing insulation with crawl space insulation is a common combination for homes in this area that have both a basement and a crawl space beneath an addition.
If your first floor feels cold underfoot even when the heat is running, heat is escaping through the basement below. This is especially common in Rohnert Park homes from the 1960s and 1970s, which make up a large share of the local housing stock. The fix is usually straightforward once the right insulation is in place.
Rohnert Park's rainy season runs from November through March, and during that stretch your heating system works harder to compensate for heat lost through an uninsulated basement. If your PG&E bill climbs sharply during those months and you have not changed your habits, the basement is a likely culprit.
A musty odor, condensation on walls, or a general feeling of dampness after a rainstorm are signs that moisture is working its way in. Rohnert Park's wet winters push humidity into basements that are not properly sealed, creating conditions where mold can develop if left unchecked.
If you look at your basement walls and see bare concrete, deteriorating old fiberglass, or gaps where the wall meets the floor or ceiling, the space is almost certainly under-insulated. These are the spots where cold air and moisture enter most easily, and they are exactly what a professional insulation job is designed to seal.
We install basement insulation using spray foam and rigid foam board, choosing the right material based on your specific space, moisture conditions, and budget. For most Rohnert Park homes with active moisture concerns, spray foam is the stronger choice because it seals air gaps and provides a moisture barrier in the same pass. If you are dealing with a finished basement or a space where the walls are already partially built out, we often recommend closed-cell foam insulation for its superior moisture resistance and insulating value per inch.
Insulating the basement walls brings the entire lower level inside your home's thermal boundary, which means the basement itself stays closer to room temperature. This approach is generally preferred when the basement contains a furnace, water heater, or any living area. If you are also addressing the area beneath a crawl space attached to your home, we can coordinate both projects in a single visit. Every job includes an assessment of moisture conditions before any material goes in, because addressing dampness first is what makes the insulation last.
Best for homes with moisture concerns or older construction where air sealing and insulation need to happen together.
A solid choice for finished or partially finished basements where a smooth, paintable surface is needed after installation.
Suited for unheated basements where the priority is protecting the floor above rather than conditioning the basement itself.
Ideal for Rohnert Park homes with both a basement and an adjacent crawl space, addressing the full lower level in one coordinated project.
Rohnert Park was built rapidly as a planned community starting in the late 1950s, and the bulk of its housing stock dates from the 1960s through the mid-1980s. Homes from that era were constructed under energy standards far below what California requires today, which means many basements across the city have little or nothing doing any real insulating work. If your home is from that period and you have never had the basement insulated, you are almost certainly losing a meaningful amount of heat through the floor every winter. Homeowners in the older neighborhoods near Cotati and in the established west-side blocks of Rohnert Park consistently report cold floors and higher-than-expected heating bills before having the work done.
Rohnert Park's wet winters also create a moisture challenge that homeowners in drier climates do not face. From November through March, consistent rainfall pushes humidity into basements that are not properly sealed, and a damp basement can quietly develop mold or cause structural issues over time. Choosing a moisture-resistant insulation material and addressing any existing dampness before the insulation goes in is especially important here. Homeowners in Petaluma face the same seasonal moisture conditions, and we approach those jobs with the same moisture-first assessment that we use throughout the area. PG&E, which serves Rohnert Park, has historically offered rebates for qualifying insulation upgrades that can offset your project cost.
Call or submit the form and we will respond within one business day. We will ask a few basic questions about your home's age, basement size, and whether you have noticed any moisture issues so we can come prepared.
We walk through your basement, check existing insulation conditions, look for signs of moisture, and measure the space. This visit is free and comes with no commitment - just a clear picture of what is there and what we recommend.
Most Rohnert Park basement jobs are done in one to two days. We ask that you clear the space beforehand so the crew has full access. If spray foam is used, the area needs to be ventilated and unoccupied for a few hours after application while the material cures.
Once the work is done we walk you through the finished basement before leaving so you can see the coverage. The crew removes all materials and debris. If a permit was pulled, the city inspection is coordinated for you.
Free estimate, no obligation. We respond within one business day.
(707) 210-9475We check for dampness, water intrusion, and mold risk before any insulation goes in. Skipping this step is how insulation projects fail - we do not skip it.
We have worked in Rohnert Park's older ranch-style homes since 11+ years, and we know how the 1960s and 1970s construction in this city behaves. That local knowledge means we spot issues that out-of-area crews miss.
Our license is verifiable on the California Contractors State License Board website. We pull permits when required and coordinate inspections so you have documented proof that the work meets California's energy standards.
We are familiar with PG&E's current insulation rebate programs and will tell you upfront whether your project qualifies. Capturing a rebate can meaningfully reduce your out-of-pocket cost before we even start.
Every basement insulation job we complete is built on the same foundation: assess moisture first, choose the right material for the specific space, and leave you with documented work you can point to for years. That approach has kept Rohnert Park homeowners coming back and referring their neighbors.
High-performance foam that insulates and seals air leaks simultaneously, ideal for tight or damp spaces.
Learn MoreSeal and insulate the crawl space under your home to stop cold air and moisture from affecting the floors above.
Learn MoreRohnert Park's rainy season brings cold floors and higher heating bills - schedule your free basement insulation estimate before fall arrives.