
Serving Geyserville, CA and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"Great communication and very excellent customer service highly recommended!"


Serving Geyserville, CA and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"Great communication and very excellent customer service highly recommended!"

Serving Geyserville, CA and surrounding areas
Approved
In business since 1975
Free estimates
Warranties offered
"Joe Stromberg, project manager, is an excellent asset of the company!!! I was also lucky to have two skillful workers who performed the project. I will definitely recommend SDI Insulation if asked to. Luba"





+22

Serving Geyserville, CA and surrounding areas
Approved (Corporate)
In business since 1950
Free estimates
Credit card accepted
"They get back to me immediately with a quote and were very informative about the recommendations for the insulation that I needed and would best suit my needs. They did the job quickly and efficiently and I really appreciate their courteous prompt service"




Serving Geyserville, CA and surrounding areas
In business since 1983
Free estimates
Warranties offered
"They came out to look and suggested that this was not an insulation problem, but a problem with the duct work for the A/C. They had recommended one of their A/C subcontractors who did an excellent job."
Serving Geyserville, CA and surrounding areas
In business since 2003
Free estimates
"The project was to insulate the home (1800 sq. ft) --blown in R38 for the attic and 6 inch BATTS (R-19) for the basement/subfloor to protect our newly installed hardwood floors and to provide insulation in general. Every aspect of the process from initial consult call to bidding to project completion was superb. Craig provided excellent customer service. He understood our objective was to get the most value for our investment. He showed up on time and performed the project professionally and seamlessly. I highly recommend this contractor for insulation services."
Serving Geyserville, CA and surrounding areas
In business since 1992
Free estimates
"They were prompt, efficient, and cleaned up after themselves. I am amazed at the difference the new insulation has made in our house. However, I am still waiting to receive my invoice/receipt for my records."





+1

Serving Geyserville, CA and surrounding areas
In business since 2009
Free estimates
Emergency services offered
"We have a 1970's and we decided to have an energy audit by Landmark Construction. It was clear that our house have some energy issues and was in need of a any type of energy overhaul. The report that was prepared for us by Charlie and his office staff, was comprehensive, clear to understand and revealed that the ducts at the attic was not sized appropriately. In addition to that, the furnace/AC in the smaller unit was old (and original) and had to be replaced. The recommendations that Charlie told us, included a new furnace/AC, new tankless water system, hot water pipe insulation, building sealing, the insulation and new ducting throughout the house. This was the best investment we ever made. I could not believe the difference in our utilities bill. Charlie and his team were great, professional and experienced. I wish we did these 15 years ago!!
"





+6

Serving Geyserville, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"Went very well and finished before promised time."





+32
Serving Geyserville, CA and surrounding areas
Free estimates
Emergency services offered
"Joshua is great! I purchased the toilets at Home Depot and arranged for Joshua to pick them up. Well HD Lancaster location only had two of the HE toilets that I wanted, so the 3rd toilet was picked up in the HD Palmdale store. Joshua did all this with pleasure. He was on time, work was completed superbly and cleanup was on point. I will always call on Joshua for my Handyman needs..."


Serving Geyserville, CA and surrounding areas
In business since 2005
Free estimates
Warranties offered
"Right from the get go Brian was very helpful. He was very up-front and patiently explained all the kinds of insulation and suggested which ones to use. He even went so far as to include the inside wall insulation for soundproofing at no cost since the project was large. Very easy to work with and flexible."
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.

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