• 15121 Marlboro Pike, Upper Marlboro, MD 20772
    260 East Boulevard North Hagerstown, MD 21740
  • |Contact Us
Call Your Local Pros Today! 301-358-6411



4.9/5 based on 56 ratings and reviews for Service.


  • "I've been a homeowner for 21 years. In all that time, I have used dozens of contractors for renovation, HVAC, roofing, electrical, plumbing, etc. I can now add Dan Smallenbroek as only the third contractor/consultant that I trust implicitly to that list. Prior to working with Dan, I received an estimate from another highly regarded insulation company for attic encapsulation. In fact, that company's name was the only one I had heard from anyone I asked about potential insulation companies. The salesman was knowledgeable, but had a one size fits all approach. This other guy didn't try to understand what I was trying to accomplish and just kept telling me that trying anything else would not work. I called Accurate Insulation to get a second estimate to see if it jived with the competitor's. I explained to Dan that I thought I already had a good company with a reasonable quote but wanted to make sure I was getting what I really wanted. Dan promised to come out, survey my attic, and give an honest recommendation. With his help and collaboration, I picked a system that worked for finishing an attic. He spent a significant amount of time educating me about R values, the difference between blown in, fiberglass, open and closed cell insulation, and the rebates and tax credits for which I was potentially eligible. He was never pushy and not for a second did I feel that he was trying to upsell. The energy audit ended up getting me a 35% rebate which Dan facilitated on the front side. He also gave me the resources to help me apply for a federal tax credit which means the final cost for the entire insulation project will be a whopping 50% off Accurate's quoted price. This doesn't mean others will have the same result, but it's nice learning ahead of time what your all-in cost will be instead after the fact when you're not eligible anymore. The energy audit process means that everything takes more time, but it also means you'll probably make a better informed decision at a fraction of what a job actually costs. It's 91 degrees oustide right now. My HVAC unit currently sits in conditioned air space at 74 instead of 130 degrees and we're in the process of having the attic finished off as an office for my wife. I'd be remiss in not saying Accurate's energy auditor, Mike Sears, spent an extra 90 minutes post-audit going over problem areas in my house and offering his own insights for improving energy efficiency. The encapsulation reduced air flow loss by 31% which has to translate to lower heating and cooling costs going forward. If you're considering insulating your attic, I can not recommend Dan Smallenbroek and his crew with Accurate Insulation highly enough. Much obliged."
    Customer: Kevin
    Date: 07/15/2023

  • "The installation of the blinds for my home by Mike was excellent. He was efficient and professional. Thanks Mike for the great work!"
    Customer: Latanya
    Date: 09/16/2022

  • "I was impressed with the work done at my home."
    Customer: GREGORY
    Date: 09/06/2022

  • "AWESOME!!"
    Customer: Charles
    Date: 11/25/2021

  • "Excellent service and professional staff!"
    Customer: Beth
    Date: 11/24/2021

  • "Thank you so much for a job well done. I have been very pleased with the service you have provided - from the knowledge and expertise of your sales representative, the attention to detail and professional demeanor of your installation crew, to the prompt and thorough follow-up quality inspection. I have immediately noticed a difference in heat retention in the rooms you have insulated for me. It may seem an odd thing to brag about an insulation company to friends and neighbors, but in these times of poor customer care your company is a breath of fresh air. You will not just be at the top of my list for my next homeowner requirements, you will be the only company on that list. Thank you again!"
    Customer: Steve
    Date: 11/24/2021

  • "I am very happy with the service and job done. I am looking to have them come back and complete the insulation in our crawl space soon. The pricing was very fair."
    Customer: BRIA
    Date: 11/11/2021

  • "Did a fantastic job. Would highly recommend them."
    Customer: Brian
    Date: 11/10/2021

  • "Excellent work! We were very pleased. Highly recommend."
    Customer: PATTY
    Date: 11/05/2021

  • "Always great service, very professional, love doing business with Tony B.! Regards, McGinley Contracting"
    Customer: CHARLIE
    Date: 10/06/2021

  • "My experience with Accurate Insulation of Upper Marlboro LLC has been excellent right from the time talking to CJ for a proposal till the completion of attic insulation by Fransisco and his assistant Pearla. Work was performed in a very professional manner and as per the agreed scope of work. I have and will continue to recommend Accurate Insulation of Upper Marlboro to all my family, friends, and neighbors."
    Customer: Srinivasa
    Date: 09/15/2021

  • "Great Job!! They came on time and were very efficient with their time. Thank you"
    Customer: Sam
    Date: 09/06/2021

  • "Excellent service and notice the difference in the cooling of my house right away."
    Customer: Joshua
    Date: 09/04/2021

  • "You guys made this quick and painless. Thanks!"
    Customer: JAMES
    Date: 09/03/2021

  • "John & Joe were very accommodating on coming out and getting our insulation project done. They went above and beyond in making sure we passed our inspection with the county, they came out twice to ensure the job was done properly. Will definitely be using accurate insulation in the future. Thank you guys!"
    Customer: Maryland Manor
    Date: 09/03/2021

  • "I have done many projects with Accurate Insulation and the service is great!"
    Date: 08/03/2021

  • "The team did a really great job and they were very attentive to making sure they got good coverage. they even checked with me a couple times to make sure they were meeting my expectations. The only issue/concern was they were a little delayed with starting my cause the nausal heads of the gun was missing a screw and they did not have a spare but they worked hard to fix it."
    Customer: STEPHEN
    Date: 07/16/2021

  • "Initially we had an issue with on/off again scheduling. However, crew of two arrived and did an observation walk thru of house and attic entrance. They shared what the expectations were and procedures for installing insulation. The job was completed with upmost professional and craftsmanship. They did a great job of cleanup and review of work. I highly recommend their services and would definitely used them again."
    Customer: WILLIAM
    Date: 06/05/2021

  • "Quick and professional service, great prices and work!! Thank you!"
    Customer: CHRISTINE
    Date: 06/03/2021

  • "First, the crew showed upon when promised by the office. Once on site they (man and a woman) were professional and courteous."
    Customer: DENNIS
    Date: 06/03/2021

  • "Very pleased with the work Accurate Insulation did on our home! Already experiencing lower utility bills! Highly recommend them for your insulation needs!"
    Customer: CONNIE DUPRE
    Date: 05/07/2021

  • "They came in did the job and we’re gone before I could thank them. I would use them again."
    Customer: CHRIS WHEDBEE
    Date: 05/06/2021

  • "Great! Well pleased."
    Date: 05/06/2021

  • "Accurate Insulation was wonderful to deal with from the first communication. Dan was extremely helpful in planning and preparing for the work to be done, and making sure my BGE rebate came through. Hiro and Hyman did a wonderful job with the installation. Very clean and courteous. They described everything they had done when I asked. A wonderful experience, and I have already starting spreading the word to family and friends."
    Customer: Donna
    Date: 04/23/2021

  • "Went perfect! 2 guys came very nice got right to work. Very clean with plastic down and quick. I would highly recommend"
    Customer: ANTHONY
    Date: 04/12/2021

  • "Scheduling was easy. Arrived on time, did the job very quick and price was very reasonable. Very happy with everything!"
    Customer: BRAD
    Date: 03/03/2021

  • "You guys did a great job and the crew was professional, clean, and efficient."
    Customer: STEVE
    Date: 02/03/2021

  • "Very responsive all around and did great solving a problem that others could not. Will be recommending them in the future."
    Customer: Adam
    Date: 01/07/2021

  • "Accurate Insulation was very responsive, from initial outreach, proposal turnaround, to scheduling the install. Everything and everyone was professional, throughout the process. Great job. Our older home's temperature is much better since the spray foam insulation was installed a month ago."
    Customer: DARREN
    Date: 01/07/2021

  • "I was very happy with the service Accurate Insulation provided. John K. who arrived for the assessment did a very thorough job and was very friendly as was the team who handled our insulation removal, replacement, and blow-in. Everyone was very professional and kind and we are likely to return to them for service in the future if needed!"
    Customer: Shelly
    Date: 01/07/2021

  • "What I like most was the customer service I’d received from the very beginning. Their attention to detail was very refreshing if I do say. Also how Tony offered me suggestions along the way to execute a smooth installation process when his team arrived."
    Customer: KEVIN
    Date: 12/17/2020

  • "Very good experience. I had to reschedule at 2am the morning they were to install. No problems! Installers were very nice and fast! I'd use them again. By the way they were significantly less expensive than other estimates I obtained. SIGNIFICANTLY LESS EXPENSIVE!"
    Customer: William
    Date: 09/11/2020

  • "It was a great price for a new garage door. The installation was done expertly and quickly. The technician (Luis) that installed the door was professional, kept us informed throughout the process and actually gave us a better seal between the garage door and the garage frame than we have ever had in the past."
    Customer: KEITH
    Date: 08/06/2020

  • "Accurate Insulation provided excellent service and pricing. The completed work was thorough, and performed with the highest degree of professionalism. I'm grateful for all that has been done in my home and would definitely recommend this company with no hesitation whatsoever. Many thanks!"
    Date: 07/07/2020

  • "Just a shout-out to your consummate professional installer Mike Sears! Mike installed a LiftMaster 8500W and replaced a broken torsion spring for me yesterday. I was very impressed with his knowledge, skill, and work ethic; and liked the fact that he kept an orderly work environment. I'm very pleased with the 8500W and Mike's timely installation. Thank you, Mike, for a job well done and for your patience in letting me watch from a safe distance! Additional thanks to Josh for setting me up with Mike, to Bob Burgess for linking me to this review site, and to Denise Smallenbroek for working so kindly with me on the payment! Congratulations to you all for your expertise and attention to detail. Though I hope that my LiftMaster garage door opener will run forever without any issues, I'd do business with you all again - in a heartbeat."
    Customer: Thomas
    Date: 05/06/2020

  • "Men showed up on time. They were courteous and did a great job. I highly recommend them. Very happy!"
    Customer: JIM
    Date: 02/07/2020

  • "The crew was very friendly and worked efficiently. They cleaned up after themselves and were able to manage my unique attic conditions."
    Customer: Greg Noble
    Date: 02/07/2020

  • "Great job foam insulating my garage ceiling and attic space, reasonable price. Brent Burgess was fast in getting me a quote on the spot for the additional attic job. Work crew was thoughtful and thorough."
    Customer: Pierre Oury
    Date: 01/06/2020

  • "This is by far, an extraordinary deal. They are detailed oriented and focused on your satisfaction. They are flexible with your schedule. When you need the very best product to be matched with a sales/service team that really understands your needs, there is only one choice....... Accurate Insulation!"
    Customer: CHARLES MAPP
    Date: 12/05/2019

  • "Quick to get an estimate back to me, scheduling appointment for install was easy. The guys that came out did a wonderful job!"
    Customer: CATHY
    Date: 10/08/2019

  • "The encapsulation of the crawl space on my home was performed in a timely manner and overall with a very superior result. My home is quite large and approximately 120 years old. The project was a difficult one but the end result was remarkable. The price was also very fair and competitive. I do, without reservation, recommend this company."
    Customer: STEVE DUNLAP
    Date: 09/11/2019

  • "Everyone I have worked was excellent. Responded promptly whatever issue I had and raised. I was very pleased with Sales Mr. C J, servicemen, etc."
    Customer: HTIN AUNG
    Date: 09/10/2019

  • "Very professional and job well done. No complaints and breezed through multiple inspections after install. Inspectors even commented on the high quality of the work."
    Customer: Kamenic Services
    Date: 08/13/2019

  • "Awesome job as normal!"
    Customer: Commonwealth Restorations
    Date: 08/07/2019

  • "This is my second experience using this company. The first time was a good experience. The second time there was an installation error that they quickly responded to and remedied. I would use them in the future."
    Customer: STEVEN BLACK
    Date: 08/06/2019

  • "Great work - they went over and beyond expectations. We experienced the benefits immediately. Thank you!"
    Customer: JANE JOHNSON
    Date: 06/07/2019

  • "We didn't even know we had issues until they came out and checked our house. What a difference! We use less propane now, and the house stays cooler, longer. Everyone was professional and a pleasure to deal with, I will recommend to everyone I know, I already have twice!"
    Date: 06/07/2019

  • "Everything was well done!"
    Date: 05/10/2019

  • "Very satisfactory dealing with you....."
    Customer: EXODUS INC
    Date: 05/09/2019

  • "The workers were very professional in the work and in the preparation for the area which they worked."
    Customer: Ellen / Charles McCorkle
    Date: 05/09/2019

  • "Oscar the installer was very polite and professional. He did a great job, very happy with the work!"
    Customer: PAT BRADLEY
    Date: 04/03/2019

  • "I am a small business owner and from building. I always choose Accurate Insulation for my projects because of their reliability, their quality, and the reasonable cost."
    Customer: Mikes Home Improvement
    Date: 04/03/2019

  • "Accurate Insulation has been a business partner to CE Rensberger & Family for 9 years. Prior to that, we partnered for over 15 years with big builders (before my small shop started). In both business scenarios Accurate has been the best provider and best value. Accurate has been exceptional on both bid amount and quality of execution. We will not change and do not wish to change. Accurate has been excellent for my business and should be for all others!"
    Customer: CE Rensberger & Family Builder
    Date: 03/07/2019

  • "Excellent service and advise. Professional and experienced. Great experience overall. Thank you!"
    Date: 02/06/2019

  • "Garage wall insulation: The crew was fast and efficient - their removal of circular pieces of wallboard between each set of studs at the top of the wall, then pumping in the insulation through the hole, and then replacing the circular cuts of wallboard back into the hole and sealing it. Very nicely done. Garage door insulation: 12 insulation panels were expertly and securely placed into the panels of the double-wide garage doors. There is no 'rattling' when heavy winds directly blast against the garage door."
    Customer: Walt
    Date: 02/06/2019

  • "Accurate Insulation did a great job. They did my old house and just finished the job in my new house. Rooms are much warmer now. Have recommended them to my neighbors!"
    Customer: BRETT LAZERUS
    Date: 02/05/2019
Products We Install

Our insulation team adds energy efficiency, comfort & value to homes & buildings.

Spray Foam

Accurate Insulation is proud to be a leading installer of spray foam insulation.


Environmentally friendly and effective, cellulose works well in homes and buildings.

Radiant Barrier

We can help keep your home cooler and more comfortable with an attic radiant barrier.

Garage Doors

When you turn to Accurate Insulation for garage doors, you work with a great team.


No matter your gutter needs, the Accurate Insulation team has you covered.


Accurate Insulation is proud to be a leading supplier of quality window blinds.

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