
Serving Bostwick, FL and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"David and his team did a great job, the price is very reasonable. I am happy to have them do my attic insulation project."



Serving Bostwick, FL and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"David and his team did a great job, the price is very reasonable. I am happy to have them do my attic insulation project."

Serving Bostwick, FL and surrounding areas
Approved
Small jobs welcome
Offers commercial services
Here at mcguinness home improvement Llc we offer perfect results at the perfect price call or text me at 848-241-2259 and get your quote today

Serving Bostwick, FL and surrounding areas
In business since 2023
Free estimates
Credit card accepted
"Kyle and his helper were prompt efficient and did an excellent job. He explained everything quite clearly and did a great job upgrading my attic insulation to R 38. The improvement in the comfort of my condo was amazing."

Serving Bostwick, FL and surrounding areas
In business since 2022
Free estimates
Credit card accepted
"Peter and his team did a great job insulating our home! They were super responsive and attentive, coordinated and worked hand and hand with our contractor to get the job done! Super nice guys, did a great job, and prices were manageable! Would highly recommend!"

Serving Bostwick, FL and surrounding areas
In business since 1967
Free estimates
Emergency services offered
"Not only does the roof look gorgeous it's efficient and quiet! It reduced our electric bill along with being cooler, it much quieter. We went with the insulated metal roofing system, which we would recommend, it takes a bit longer and it's more costly but worth the time and money. Frank and his team are friendly, straight forward, and easy to work with. They were efficient and clean, our neighbors even commented how much they appreciated how well they cleaned up each day to keep our road and driveway clear. We would highly recommend them for any roofing job!"





+11

Serving Bostwick, FL and surrounding areas
In business since 2005
Free estimates
Credit card accepted
"I?ve seen the results of Cornerstone Insulation LLC?s work on several homes in our area, and the craftsmanship is excellent. They take a lot of pride in their work, are honest, dependable, and truly care about doing the job right. I wouldn?t hesitate to recommend them to anyone looking for top-notch insulation services."



Serving Bostwick, FL and surrounding areas
In business since 2017
Free estimates
Emergency services offered
HALLCO HEATING & AIR is dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in heating and furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results & look forward to building long-term relationships with our clients, and guarantee your satisfaction.

Serving Bostwick, FL and surrounding areas
I’m Josh, owner of Top Coat Painting & Spray Foam. With over 10 years of experience, we proudly serve Jacksonville and surrounding areas. We specialize in spray foam insulation, interior painting, and exterior painting. Our focus is delivering high-quality workmanship, reliable service, and results our clients can count on

Serving Bostwick, FL and surrounding areas
In business since 1971
Credit card accepted
"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."





+2

Serving Bostwick, FL and surrounding areas
In business since 2020
Free estimates
Offers commercial services
We guarantee quality and complete satisfaction, featuring a 10 year warranty at no additional cost on all of our services. We set ourselves apart from our competitors by offering the highest quality of work combined with experience, guaranteed. Find another company with a lower price and we will beat the competitor's price by 10%. Call today for a free estimate!
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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