
Serving Healdsburg, 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 Healdsburg, 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 Healdsburg, CA and surrounding areas
Approved
In business since 1975
Free estimates
Warranties offered
"Project was to install side wall insulation for a 60 yr old apartment."





+22

Serving Healdsburg, 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 Healdsburg, CA and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"Ace was the lowest price and used the best insulation material which was fiberglass not cellulose. They showed up when expected and did a good job, we know, my husband was a building inspector before he retired."

Serving Healdsburg, 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 Healdsburg, CA and surrounding areas
In business since 2016
Free estimates
Credit card accepted
"Tony and Green Apple were awesome. He gave a quote and stuck with it, even when the job turned out to be more extensive than he anticipated, showed up 15 minutes early (after giving me a courtesy phone call to let me know he was on his way), and worked very hard for three hours to clear at least 30 years of dust and debris out of the duct work. He had a sense of humor, respected the property, left the house clean and ducts spotless. Don’t hesitate to use Green Apple!"





+18
Serving Healdsburg, CA and surrounding areas
In business since 2003
Free estimates
"Good customer service and were flexible when scheduling the work to be done. Can already feel a bit temperature difference in the attic where the insulation was done and the finish job makes the attic very bright. We have gained valuable space having had this work done."
Serving Healdsburg, 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 Healdsburg, 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 Healdsburg, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"Went very well and finished before promised time."





+32
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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