Kitchens, Bathrooms, & More, Insulation, Roofing, Windows, Doors, Decks, Attic Efficiency , and 2 more
"They did a great job. Had a small bump in the road at first, but they bent over backwards to make everything right. Matt is great and followed up every step if the way. I love my new attic storage and finally have decent insulation!!! And the guy who patched the ceiling wasn't horrible to look at, so that's always a plus!! :) They were really great about cleaning up and gave me some awesome tips for some DIY stuff I wanted to do. I tried to stay out of the way, but couldn't resist asking a couple of questions here and there so I wouldn't completely screw up my house when I got brave and decided to do something myself!! Would definitely recommend them and will call them again when I have another big project that I need done."
Erin V. in March 2019
"I was not impressed with the service I received from this company. The technician was not very knowledgeable and was unable to fix the problem with my air conditioning system. I ended up having to call another company to get the job done. I would not recommend this service."
Kenyon R. in April 2023
Vinyl Siding - Install or Completely Replace, Seamless Metal Gutters - Install, Asphalt Shingle Roofing - Install or Replace , and 2 more
"Recently discovered some missing shingles on my roof, I called Semper Fi out for an inspection. My roof is old and needed to be replaced, so they provided me with an estimate and very soon after my new roof was being installed. Job very well done. Semper Fi has my word!"
Brooke B. in July 2022
Insulation, Insulation
"Founders Insulation did a very good job on installing insulation in ceilings! They were careful, courteous and cleaned up."
Joan B. in June 2023
Commercial and Residential Retrofitting
"Josh was very easy to work with, he explained everything, reviewed our options. Price was competitive. They showed up on time and cleaned up after the job. Attic looks great. Highly Recommended."
Jack D. in August 2020
Dehumidifier Installation and Maintenance, Basement Air Quality Improvement, Basement Waterproofing , and 2 more
"I would recommend this company immediately for anyone looking to have insulation work done. Our house was extremely drafty and bills for heating and cooling were high- after the initial consult , I was sold and hired them. The job was no small task but I was very impressed with the teams professionalism, attention to detail and their very special attention to keeping the place in some order in between the days of the project. I can't say anything negative about any part of the experience- even the ceiling repair team was amazing. Thank you John, Scott and team!"
Stephanie K. in June 2014
Ashburn Insulation Contractors are rated 4.8 out of 5 based on 181 reviews of 181 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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Energy efficiency is a top priority for homeowners in every climate and season. Choosing the best insulation contractor that will provide you with expert advice on making your home comfortable and reducing your energy costs can be a challenge. Need help finding insulation contractors near you? Enter your zip code to be connected today to local insulation installers.
Insulation is designed to maintain a stable interior temperature regardless of the outdoor weather. There are four main categories for insulation. The type you choose depends on these factors:
Fiberglass batts are the most common and least expensive way to insulate your home. They are installed during construction and renovations before the walls or floors are closed in. Properly installed, it improves the energy efficiency of your home by 25 to 30 percent.
Blown-In InsulationBlown-in insulation is made from white cellulose, a byproduct of recycled cardboard, newspapers and other paper materials. It provides excellent R-value which increases depending on the depth.
Spray Foam InsulationSpray foam insulation is ideal for filling tight gaps and spaces that make a home drafty. It begins as liquid polyurethane that is sprayed into an opening or cavity. It expands to fills the space and then hardens into solid foam.
Reflective or Radiant BarrierReflective or radiant barriers work the opposite way as do other insulation materials but it has similar results. Most insulation slows down the flow of heat, but the thermodynamics of radiant barriers causes it to reflect the heat and cold. It is commonly used in attics to minimize the effects of scathing summers or frigid winters.
The cost to purchase and install insulation varies regionally. The national average cost varies by material, with blown-in at around $880, fiberglass around $960 and spray foam around $1,100.
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