After 40 years, our insulation was falling off. We also had (they discovered) squirrel damage…read more C.I. had a team of extremely hard-working folks who removed all the old stuff, repaired the squirrel damage, and then sprayed foam throughout our attic. The work was noisy and their workday was long. But worth it. The price was not inexpensive, but we believe for the number of workers, and the extent of the work, the price was fair. It's not something I want to be good at.

Do NOT use this guy! They aren't at all trustful We asked for a wrongfully check to be returned…read moreafter they said it was incorrectly written only to find out that they ended up deposited. Not sure I can trust the work they perfumed was accurate after they lieded and never returned our check.

KO completed a crawl space insulation job for us. The team was prompt and tidy and did a great…read morejob. We would use them again.

Prompt, courteous, and did great work. Our attic is now usably as a home office. We appreciate it!read more

Honest and incredibly reasonable - will be using again for any future insulation needs.read more

So responsive, very reasonably priced, and extremely honest. We wanted to use him for insulating…read moreour garage. I highly recommend Jacob Thomas Insulation and will definitely use in the future.

They did great job with insulation in attic. Would recommend and they were professional.read more

Chris arrived to give me a quote on a Tuesday morning. I liked his knowledge and professionalism. I…read morehad a completed full attic insulation job completed by noon the very next day!!! Job well done and a great crew!

We just moved to LOW, and I hired Bill Lloyd to replace the vapor barrier and repair the insulation…read morein the crawl space. His work was absolutely perfect. I was stunned at how great our crawl space looked! I have since hired him for another project, and it came out Great! Bill is the best, and is definitely a rehire when I have a project in his expertise.

Lloyds was recommended to us and he did several jobs. A 50 by 40 garage and upgrade to our house,…read moreGreat work and price! Be sure to get a price from him because you will be glad that you did. We have recommended him to others in Madison Va. and they have been happy also.

We had an 8 degree difference between our first and second floor, and had 6 companies come and give…read morequotes (yes, six!) Zion Insulators was the most thorough in their estimate, as well as most competitively priced. I wish all our estimates for home improvements had this same combination of quality and affordability. Felix and Jose replaced the fallen baffles, air sealed everything, created a dam for the attic hatch to maximize the insulation around the hatch, brought our blow-in insulation up to R-49, and took pictures of their finished work. The degree difference is now just 3 degrees, and much more comfortable. To top it off, Felix gave me a ring about a month later to see how the insulation was performing, and will stop by to make some very minor improvements around the attic hatch that I would not have demanded or expected. So I give them all the credit for being amazing professionals who go above and beyond. I'd say I did plenty of research, and can recommend Zion Insulators without hesitation. Thanks again!

From the owner: Zion Insulators dominates the area with Spray Foam Insulation needs to customers…read more We are a Veteran Owned company specializing in attic and crawl space cleanup and insulation, rodent proofing, and radiant and vapor barrier installation. Our mission is to deliver the best service possible so you can provide the best atmosphere for your loved ones. Our priority is customer satisfaction and work endlessly to obtain this goal. Our expansion and growth would not have been possible had it not been for our customers' feedback and critique. Zion Insulators will work with you to prioritize your attic cleaning and insulation needs, and then customize a plan of action to make your home or business safe and free of contamination. We strive to keep perfecting our service and company and are always open to hear our customers concerns and suggestions. We have work with customers to meet the needs of their budget, Price, Customer Service

A totally professional experience, from the quoting process to the installation. Said what they…read morewere going to do and did it as said.

This co.pany installed my garage door and did an awesome job. They were fast and efficient.read more

Communication with these people is horrible. Other than the initial appointment, they don't show…read moreup when they're supposed to and I could never get any straight answers. They were intent on getting my credit card number on file and up selling me on a crawlspace without ever showing me where my crawlspace was compromised.

Tim and Carl did a great job with our bat exclusion project…read more Thorough inspection and explanation, and quick work on the job

Another company offered to do our encapsulation for a lot cheaper but gave us the runaround for…read moremonths, lied to us repeatedly, and never got the permit to do the work. We were so frustrated! We figured out that our county's website has a record of all of the permitted work done in the county in the last 3.5 months, and you can sort by project. It also lists the sq footage of the project and the cost. We could see that Kefficient had done the most permitted projects in our county and they had a fair and competitive price compared to other companies who got their work permitted. We ended up deciding to work with Kefficient. What a world of difference! They quickly got a permit and did the work and had it inspected and it looks great. What a relief after such a poor experience with a different company!

As promised, I needed another encapsulation for a new home(but like built 1917) I bought it with a…read moremere vapor barrier and known terminate and moisture issues. The urgency of the work that needed to be done was honored, and end result was even better than my first one!! This was a far more difficult project, and unfortunately, I couldn't be on site during the project. The daily updates with photos and exactly what was worked on (the before and afters) I got was beyond expectations, 1000% to the crew. The light near the dehumidifier is game-changing and they even gave me a moisture monitoring device. When I learned how cool it was, I asked if I can have one for my 1st house, and they offered it to come brin git by(free). Bonus when the technician came to install, he noticed some dropping insulation and just fixed it. This is why I love this company and will always call them for my needs and highly recommend them to anyone.

The representative for Alpha Pest Management was on time, extremely courteous, and friendly. He…read moretook care of eliminating the bird nest from my fireplace chimney and sealed it up. He thoroughly explained how the problem started. He provided very efficient, timely, and reasonably priced work. It did not take long to put me on the schedule and come out for service. I would definitely use their services again and would highly recommend them. A++

Hands down the best pest service in the DMV - Justin is extremely knowledgeable and goes above and…read morebeyond to address the issue! Most other places we used in the past just set up traps - Justin actually addresses structural issues setting up barriers and more. He even will come back promptly if you have new discoveries. Highly recommend !!! He is the best in the biz!