Serving Williamsport, PA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"Everything was completed, crew cleaned up any mess and the insulation has made a big difference."

Serving Williamsport, PA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"Everything was completed, crew cleaned up any mess and the insulation has made a big difference."

Serving Williamsport, PA and surrounding areas
Approved (Corporate)
In business since 2023
Free estimates
Warranties offered
"We are extremely satisfied with the whole process of our house being insulated. First we had the walls done, and then a couple weeks later we had our attic insulated. The crew were so nice, friendly, and knowledgeable. We are very satisfied with everything. Thank you, everyone."





Serving Williamsport, PA and surrounding areas
Approved
In business since 2002
Free estimates
Warranties offered
Draft Stoppers Insulation is your local insulation expert in Central PA!! We have over 20 years experience in the insulation business. We are locally owned, not a national franchise like most of our competitors. So, whether it's residential or commercial, we treat every customer like family. That means you will receive top-notch quality, service and fair prices. \n\nDraft Stoppers uses only the best quality products to complete quality installations including insulation removal, insulation replacement, fiberglass and cellulose blown-in insulation, fiberglass batt, spray foam, polystyrene foam board, and air sealing services. \n\nContact us today to get your FREE estimate.





Serving Williamsport, PA and surrounding areas
Approved
Free estimates
Small jobs welcome
Credit card accepted
At Mavrix Construction, we believe hiring a contractor should be stress-free. We specialize in professional spray foam insulation across Pennsylvania, managing every detail of your project from first call to final walkthrough.\n\nWe answer our phones. We show up when we say we will. We communicate every step of the way. And we don't consider a job finished until you're satisfied.\n\nOur commitment is simple — competitive pricing, quality work, and the kind of customer service that's rare in the trades industry.\n\nWhen you choose Mavrix, you're choosing a team that treats your property like our own.

Serving Williamsport, PA and surrounding areas
Approved
In business since 1989
Free estimates
Credit card accepted
We are a veteran owned and operated company with over 40 years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of Home Improvement services that are customizable to each individual project & specialize in weatherization, insulation, and a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

Serving Williamsport, PA and surrounding areas
Approved
Free estimates
Offers commercial services
We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.\nYou will find us to be competitively priced with close attention to the details.\nOur reputation is based on service, safety, and quality, regardless of how large or small the job.\nWe look forward to building a lasting relationship and guarantee your satisfaction!\n

Serving Williamsport, PA and surrounding areas
In business since 2018
Free estimates
Warranties offered
"they were prompt ..... clean ..... and complete ..... recommend to anyone looking for this type of insulation"





+18
Serving Williamsport, PA and surrounding areas
In business since 2019
Free estimates
"Excellent. Prompt,efficient, professional. My garage is warmer and quiet. I would not hesitate to recommend Green Valley for any house or building you need insulated."





+7

Serving Williamsport, PA 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 Williamsport, PA and surrounding areas
In business since 2018
Free estimates
Credit card accepted
Welcome to Foam Brothers Insulation, LLC! With over 4 years of experience, we are proudly serving Wyoming County and the surrounding areas. Here at Foam Brothers Insulation, LLC, customer satisfaction is our number one priority! We aren't finished until the job is done correctly and you are pleased. Give us a call today for a free consultation. Flexible hours are offered!
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.
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