If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
Drafts, uneven temperatures, damaged insulation, or signs of rodents in your attic or crawl space? Rywen Insulation Inc helps Bay Area homeowners and commercial property owners understand the problem and choose the right next step.
We are a family-owned insulation company with an in-house team. Our services include attic and crawl space insulation, insulation removal and replacement, air sealing, vapor barriers, and rat and mouse removal and entry-point sealing.
Start with a free insulation inspection and a written estimate explaining the recommended work. Send us your ZIP code and tell us what you are noticing so we can confirm coverage and arrange a visit.
Overview
Hired 15 times
Serves San Leandro, CA
Background checked
License verified
10 employees
6 years in business
Business hours
Sun8:00 am - 6:00 pmMon8:00 am - 6:00 pm
Payment methods
This pro accepts payments via Cash, Check, Credit card, Samsung Pay, Venmo, and Zelle.
Customers rated this pro highly for value, work quality, and professionalism.
Excellent 4.9
83 reviews
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96%
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Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Philip C.
Dec 2, 2025
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From Google
Good reasonable people. Shows up on time, takes responsibility for their work. They got rid of the rats living under the house, Ive seen any trace since then.
Rywen Insulation Inc.'s reply
Hi Philip,
Thank you for taking the time to share your feedback. We’re glad to hear everything went smoothly and that you’ve been satisfied with the results. We truly appreciate your trust in our team and the opportunity to work with you.
Joyce T.
Oct 23, 2025
•
From Google
Amazing job and customer service. I highly recommend. I have another rodent problem in a 4 bedroom home and Rywen was so prompt in getting me a bid and then scheduling the work. Meriam, in the office, is amazing and so efficient.We previously had a rodent issue in the attic and crawlspace of a fourplex and now everything is clean and rodent proof.Thank you sooo much Rywen!
Rywen Insulation Inc.'s reply
Hi Joyce,
We really appreciate your wonderful review! It’s great to hear everything went smoothly and that you’re happy with the results. Thank you for trusting Rywen — we’re always here whenever you need us!
Pierre F.
Dec 15, 2025
•
From Google
Hired them to fix rat infestation in attic and crawlspace. Also, install new insulation and vapor barrier in crawlspace. They did a great job. Brayan and his did were very professional.
Rywen Insulation Inc.'s reply
Hi Pierre,
Thank you for taking the time to leave this review. We’re glad to hear you were pleased with the work and that our team provided a professional experience. We truly appreciate your trust in Rywen and your feedback.
Evelyn C.
Dec 30, 2025
•
From Google
Our home had unwanted visitors (rodents) in the crawlspace and attic. The Rywen Insulation team came and made sure to close any holes to deter pests from getting in. Furthermore, they removed and replaced the old insulation, and cleaned the attic and crawlspace from and rodent droppings. The entire work was done in a day. This team checked and patched any holes from the inside and did a full inspection of the exterior of the house, including the roof, to ensure all possible entries were sealed. The first night, I heard and saw a large rat trying to desperately get back in, but I think it gave up and moved on. I now get uninterrupted sleep at night and no longer hear scratching sounds or movement in the attic. Moreover, their customer service was excellent. This is a super responsive team that earned my trust by being quick to respond to any questions I had. For the pricing, this company charged me slightly higher than the 2 other companies I received proposals from, but I still believe the cost was reasonable for the great work that they do. One of the other companies only patched holes within reach and let me know they would not go on the roof, and I would need to hire someone else for that work, while Rywen Inc made sure that if the holes could not be reached from the inside, they would be patched from the outside, even if it included going on the roof. Thank you to Brayan, Walter, and the team for the great service.Services I got were attic clean up, insulation replacement, crawlspace clean up and rodent proofing. Im very pleased with the overall results.
Rywen Insulation Inc.'s reply
Hi Evelyn,
We truly appreciate you taking the time to share such a detailed review. It’s great to hear that our team’s thorough approach and efficiency made a noticeable difference for you. We’re glad the results brought you peace of mind, and we sincerely thank you for trusting Rywen.
Robbie C.
Nov 29, 2025
•
From Google
We noticed a rat problem in our basement & attic. We were recommended Rywen insulation from a coworker and scheduled for their rodent proofing service. Booking online was very convenient and someone came out for a consultation and to give us a quote. Prices seemed very reasonable for all the work they were going to do and we called to schedule them to come back for the rat proofing. They were able to fit us in the very next day which was great. The team that came were very professional and did a very thorough job assessing all the possibly entry points into our attic, basement, and garage. It was well worth the cost for all the work they did and the warranty gives us peace of mind in case we ever hear or find anything in the future. Highly recommend Rywen for their rat proofing services!
Rywen Insulation Inc.'s reply
Hi Robbie,
Thank you so much for taking the time to share this detailed review. We’re glad to hear that our team was able to assist quickly and provide a thorough rodent proofing service that gave you peace of mind. We truly appreciate your recommendation and your trust in Rywen. Please don’t hesitate to reach out if you ever need anything down the road.
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
Insulation inspections and estimates are free. Project pricing depends on the area, access, existing insulation, contamination, and the work needed. Our written proposal explains the recommended scope so you can compare estimates on the same basis. Ask us to review the materials, removal and cleanup, air sealing, rodent exclusion, and warranty included in your proposal. Dead-animal searches or removal and other service calls may carry a fee; we confirm any applicable charge before scheduling. Additional work is discussed before it begins.
What is your typical process for working with a new customer?
Our process begins with a detailed inspection of the attic or crawlspace to identify insulation deficiencies, contamination, air leaks, and potential rodent entry points.
After the inspection, we provide a clear explanation of our findings along with a detailed proposal outlining the recommended solution. Depending on the situation, services may include insulation removal, sanitation, rodent entry-point sealing, vapor barrier installation, or new insulation installation.
Once approved, our team completes the work efficiently and with careful attention to cleanliness and safety. Our goal is to restore the space so it functions properly, improves energy efficiency, and helps prevent future issues.
What education and/or training do you have that relates to your work?
Our team brings over 10 years of hands-on industry experience working with attic and crawlspace insulation systems, rodent exclusion, and moisture control solutions.
We focus on proper installation methods, identifying underlying problems that affect insulation performance, and applying solutions that improve indoor comfort and energy efficiency. Our work emphasizes careful inspections, detailed workmanship, and clear communication with homeowners throughout the process.
