William is fantastic, truly knowledgeable. I've got water leaking from somewhere around my windows and I had no idea where to begin, who to call.... I wasn't sure if I needed windows replaced or what. William provided clear guidance and even recommended who to contact. read more

It's my 5th time using Decker Home Inspection and it definitely won't be my last! By far the best home inspector in Chicago - his knowledge and advice is top notch. I wouldn't buy a home without him!! read more

I saw Mr Decker on August 15 to inspect my condo unit in River Forest for water intrusion? He used a thermographic imaging to detect that no water but condensation melting off the windows cause my drywall damage. He is a former professor at the University of Chicago. He conducts himself rather impressively? He has all the credentials an inspector should have and I would use him again if necessary read more

My husband and I used Will for our duplex down condo inspection. We had concerns relating to split face block. Will went above and beyond during our inspection to help us feel good about the purchase. He was very knowledgeable and took his time answering all of our questions. If something came up during inspection, Will made sure to check it out and explain what was going on. He provided the inspection report quickly and told us to reach out if we had any questions. He was more than accommodating in even answering questions, including questions that were outside of what an inspection covers. We really enjoyed working with Will! read more

My condo building had Will come out to inspect the exterior, certify the split face block and look for sources of water intrusion before committing to expensive repairs that we did not fully understand. He helped us prioritize near-term needs vs. longer-term maintenance projects and made us feel confident that undertaking the large-scale repairs we were being quoted from other businesses was not necessary. He is reliable, timely, friendly, immensely knowledgeable and makes things simple for non-experts to grasp. I highly recommend and would certainly use him again myself. read more

Mr Decker came out for an inspection of a property we were putting an offer in for and was great! For first time homebuyers he gave thorough insight into what we should be looking out for in a home, and how to upkeep the appliances and utilities that we would have. Definitely recommend for first time home buyers, or anyone who needs additional insight or advice! Overall very kind and knowledgeable. (Also shoutout for coming out to do the inspection on his birthday, and much appreciated) read more

Will was great! He performed an inspection on our new build that was coming up on the 1 year warranty period. He was super thorough and provided useful information for maintaining our home. He explained what he was checking for, his reasoning, and things to watch out for the future. read more

I'm a big fan of Will Decker as he helped inspect my mother in law's condo for floor damage and recommended a path forward that saved us a lot of money. Will is very personable and experienced and is very reasonably priced. I would highly recommend him and will use his services again myself. read more

This is the second time we've used Will for home inspections. Very thorough, friendly, on-time. I wouldn't consider using any other service. Will walked us through everything, what to watch for, how to maintain everything. He checked serial numbers for equipment recalls, used thermal imaging and a drone to ensure the most accurate and thorough report possible. All of these things are included in the report, and he's easily accessible for any follow-up questions you may have. Check out the example report on his website. You'll be impressed, I promise. read more

I've used William Decker for a home inspection in the past. He's extremely knowledgeable and is a certified master inspector. I've used others in the past ( and have totally regretted it!) Mr Decker is extremely thorough and knowledgable. He will have suggestions as to what kind of materials to use if repairs are a concern. His reports are very detail oriented. I didn't have a chance to use him for my recent home purchase and am paying for it now. ( my own fault) If I ever buy a home again William Decker will be the person I hire for my inspection. Everything he writes on his website is accurate. "Realtors will recommend easy inspectors who won't lose them their commission." ( unfortunately exactly what happened to me). William Becker is an expert in his field and I cannot say enough kind things about his expertise. He actually cared enough to stop by to check on some concerns I had with my recent purchase. Overall an excellent experience and definitely recommend! read more

William Decker is an exceptional guy, not to mention devilishly handsome too! He is incredibly knowledgeable and shares his expertise freely. His experience in building restoration & renovation is unparalleled, as well as his trusted source of professionally licensed contractors he can refer. He knows this industry like nobodies business, the real deal, the man with the plan! Definitely recommend with high regards. read more

Having hired Will Decker for two high-rise condo inspections, we found him to be extremely accommodating and knowledgeable. He quickly provides the report, and is readily available for follow-up questions. read more

Highly knowledgeable and a great resource. We worked with Decker Home Inspection and it was a great experience. They provided great recommendations for building contractors and helped us diagnose root causes. Highly recommend and will absolutely be going back again if we ever need a building inspector. read more

Will has the local knowledge and yet brings to the table an educated approach towards resolving water issues and a practical one. Hard to find people that have that type of knowledge. Get him in first he will lay out the options to address problems rather than just point out the problem. Thank Will! read more

Will did an inspection for me a few months ago. I've been in the home for around a month. Will markets himself as providing a premium inspection for a premium price. Unfortunately, I felt his was an average inspection. He's a very nice guy, but perhaps a bit too focused on telling stories and chatting, rather than being thorough. A couple specific items I think he could have provided more information on were a second furnace, which he couldn't find, two ovens which did not work, cracked concrete steps, etc. that is not an exhaustive list. His documentation was also not the most extensive, more photographs would help tell a more complete story. It also felt like he was too concerned with whether or not we would buy the place instead of just providing information to us, to assist in our decision making. I've read dozens of home inspection reports, for my own purchases and for others. There are certainly other home inspectors putting out worse reports, but again, Will is positioned and priced as a premium option, so beating the bottom guys isn't enough. One other thing, Willsaid the report would be ready the next day. I wasn't actually in such a hurry, but didn't get it for two days. I emailed him asking him for it. He responded claiming he already sent it, but didn't forward the original email. Anyhow I got the report, but it felt like he was blaming me, even though I wasn't really that worried about the rushed timing of it anyways, just trying to get my report... As a result of all that, I probably wouldn't hire him again. read more

Will Decker was not my home inspector, but he graciously took time from his day to take my call and answer all of my concerns about a building with split faced block. His advice was sincere and honest, and he never asked for a dime, even though his expertise warranted some type of compensation, he refused. We had a couple of good laughs on the call too! I highly recommend Will, especially if you are considering a building with split faced block, he knows what he is talking about. read more

Highly recommend Will's home inspection services. We had the pleasure of working with Will on two occasions, and he saved us a lot of time and money with his expertise. Extremely punctual, thorough and knowledgeable. Will used high quality equipment for impressive results. I would recommend him to anyone that needs an honest opinion and matter of fact information. You wont regret your investment! read more

I feel like I lucked out that my agent recommended Will Decker for my home inspection. He is the perfect mix of being an expert in his domain and able to talk to normal people. He was very easy to work with, prompt with his replies, and is happy to be available after his initial inspection for follow up questions. He helped me turn the declarative statements that are the stuff of the inspection report into the imperative statements that the lawyer needed for the legal review portion of my home purchase. It feels good to have a guy, and Will's the guy. read more

I'm a first time home buyer and hired Will for my inspection. I can't say enough good things about my experience with him. He was informative, knowledgeable, prompt, responsive, and had some very helpful advice. The report he sent (same day!) was clear and concise but also very thorough. read more

I am very impressed with Will Decker Home Services. He came to me very highly recommended and he didn't disappoint. He was able to accommodate our schedule and get my home inspected quickly but more importantly, he was very thorough and a had a wealth of information. He provided great tips along the way on how to fix low priority issues properly but easily. Thorough, direct, skilled and knowledgeable. You can trust Will and his team. read more

We first used Decker home about 20 years ago when we had some roof trouble and we're very impressed with Williams knowledge. So when we decided to purchase a home 20 years later we were happy to find that Decker home was still available to do the inspection. William came to the home, thoroughly inspected, and walked us through all the trouble spots. He even offers post inspection help. He also got us in touch with a radon inspector. Decker home is very trustworthy and knowledgeable and highly recommended by us read more

A+ all the way. Will performed a very thorough inspection and did a great job explaining what he's looking for along the way. I also received a complimentary crash course on how to properly maintain a home! The best part was that a detailed inspection report was delivered the same day. I'm definitely going to recommend his services to my friends and family. read more

l had a great experience working with Will on the inspection for purchase of my home. He is an expert in his craft and has a passion for it. He is also fair in pricing and didn't nickle and dime me when he could have done it. The report was delivered in a timely manner and I refer back to it frequently when I have questions about my home. He is very responsive to follow up questions. I give Will my highest recommendation to anyone who needs a home inspection. read more

Will is an amazing and kind-hearted guy, funny too. He is definitely very knowledgeable and experienced in his field. After a google search, Will's article that he wrote popped up and we tried our luck in calling him on a Sunday morning, he actually picked up and answered all our questions and offered his expert advice. Not only that, we as an association had a phone call scheduled that afternoon and I asked if he would mind hopping on that conference call to answer other questions we have and share his expertise. He spent almost an hour on the phone with us answering all our questions and provided contractors that he trusts. We can't thank him enough for taking the time out to educate and we would definitely recommend him as he knows what he's talking about. Thank you will! read more

We can't recommend Will highly enough! He is such a pro, and also very personable, so the whole experience was overwhelmingly positive. Will is incredibly knowledgable and provided tons of helpful information for us newbie homeowners during the inspection and in the final detailed report. He was so generous with providing recommendations and detailed explanations during the closing process, and we can see why he is one of our realtor's most recommended inspectors. read more

I cannot believe I never reviewd this guy. This guy came on time, was friendly, wrote an amazingly detailed report, and explained everything to me in great detail. He even told me to tall him if I have any questions/concerns about anything in the report. I had an issue where I had to back away from the first house my wife and I were looking at, and take a second house. So he gave me a 'multiple home discount'! read more

Will did a solid job inspecting our home. Even more impressive, he had a lengthy conversation with me TWO YEARS later(!) to discuss what to watch out for as we embark upon roof replacement. Much appreciated. read more

If you're looking for a thorough, extremely knowledgeable, professional, and experienced inspector Will is your guy. He saved us from buying a money pit. In my humble opinion, Will is the best there is. His prices were also very reasonable, and he's a delight to chat with. Highly recommended to all home buyers and agents looking to protect their clients. read more

Will was recommended by our real estate agent for a residential home inspection and our experience with him could not have been better. He was prompt, friendly, thorough, and obviously knowledgeable. During the inspection, he went out of his way to explain to us what he was doing and gave us a number of helpful tips regarding operation, maintenance, and best practices for the property. His final report was highly detailed and his fee was very reasonable. To top it all off, he's a likable, funny guy! Highly recommend. read more

We found this family-owned inspection company among all the big franchises, and we are very satisfied with this decision. William is very thorough, explained every detail and answered all our questions and concerns. He tried to find ways that's best for you, not what's most expensive for you. After the inspection report was issued, he still answers my emails about following-up questions, which helped a great deal during our negotiation for repair credit. Even my attorney says that's very rare among inspectors who offers help and even agree to talk to attorneys. I would highly recommend William to every one. read more

Dealing with water intrusion issues at my HOA. After a little research, I come across Will Decker. He provided an inspection for our entire building, walked through a couple unit interiors, put together a comprehensive report. He may have solved a 20 year mystery in 2-3 hours. Thank you, Will! read more

If you need a responsive guy that knows his stuff, Will Decker is your guy. My husband and I purchased a renovated Chicago two-fat and almost immediately experienced water intrusion through multiple second floor windows. We consulted with Will Decker to source the problem while under the warranty period and he not only helped identify roof, window and masonry defects causing the water issues--including faulty re-pointing (commonly known/mis-described as tuckpointing) and improperly installed flashings etc.--but provided us with recommendations for quality masons that know how to repair the windows and masonry specific to Chicago common brick. While we wish we would have engaged Will before we purchased our home and had him do the home inspection then, we are grateful we engaged him before these problems got worse and are now able to make progress to get these repairs completed. read more

I've used Will twice now, once to inspect/certify the split block on my last house and now again to inspect the purchase of a new home. He arrived early (had already finished the outside) and was very thorough and informative. The report was also sent to us that evening. I also like that he has a tool to check for leaking in the walls. The inspector that I used on my last house did not have this and I definitely learned my lesson to never use another inspector that doesn't have this. Professional, friendly, thorough, and prompt! Highly recommend. read more

We used Will Decker for home inspections twice now, and we've had a long-lasting relationship with him. We are having major humidity / HVAC / moisture bug issues and it's a complicated issue where no one really knows what the root cause is (we've had a circus of different specialty companies come in to assess). Will spent time talking to us about suggestions on how to approach this issue, and he even offered to come out today for free to inspect and let us know what he finds. He spent 45 minutes using his infrared machine to inspect and give us his own recommendations. Thank you Will -- it's been 7 months since our home inspection and he is still available and eager to help us as we deal with home maintenance issues! (Aug 2019) I spent a lot of time researching which general home inspector to use. I had a referral from my realtor but wanted to explore regardless what inspectors were out there. When I came across his website (even before I read the reviews) I was immediately impressed by his passion, thoroughness of his website, the articles he wrote especially about realtors, his credentials (did you know he used to be an adjunct professor of University of Chicago?), and wealth of knowledge in thermal imaging. I then spoke to him on the phone and he was extremely helpful, generous with his time, and answered all my nit-picky questions. I then called him again with follow-up questions after I interviewed other inspectors, and again he was patient, thorough, knowledgeable, and generous with his time again. I decided to hire him for my home inspection, and he showed up early and even had a student with him (he teaches/trains new inspectors). He didn't rush and was very thorough in explaining to us what he found at the end, and gave a lot of advice about maintaining homes, including names of referrals and good companies to use. His report came the next morning, very thorough again, and I asked him to schedule a read-through call which he was again, very generous with his time to explain the report and major call-outs. He's offered to stay in contact with us and have a lasting relationship, if we ever have questions and want referrals. Very happy with him and I highly recommend him! (I'm very, very picky about who I choose and have high standards, if you can't tell!) read more

Terrible. Does not know what he is doing. Cost us a fortune for things he missed at our inspection. Utterly incompetetent.

It's hard to find people who are honest and not all about money... So I am glad I found Will Decker. I emailed him requesting an inspection on very short notice. Not only was he very knowledgeable on the IL Home Inspection Act but he offered me advice without charge, information I would have been unable to obtain by myself. I will definitely be using him for future inspections. If you want reliability, honesty and value for your money...he is it. read more

Decker helped our condo building assess our options with Split Faced Block siding. William was very knowledgeable, helpful, and easy to work with. Much appreciated. read more

We used Will Decker for the inspection of a home purchased in Elmhurst. I would 100% recommend using his services. The report he provided to us was extremely thorough and provided many recommendations for the home that we can use into the future. I felt like he genuinely cared about us as homebuyers and I also felt confident he would not be afraid to point out things wrong with the house. Will is very smart, and he has a full background in physics, home building etc that make his qualifications very unique. The full report was done the same day as the inspection and included details, photos, recommendations of items that were significant and items to consider replacing once we moved in. In the end, Will's report allowed us to push the seller into making some fixes. I would 100% recommend him to anyone. read more

We used Decker Home Services based upon a recommendation for a single family home inspection. The nearly 100-year old House was a flip and he was well versed in what to watch out for. We were very pleased with our inspection. Not only did he explain the details of his inspection but he let us know what was normal and what was unacceptable. He also alerted us to some potential structural issues for which we are very grateful. I would recommend Will for anyone looking for a solid Home Inspector in Chicago. read more

I had Mr. Decker out to inspect a 4 unit building I am purchasing. He specifically gave great insight into the split face block used to construct the home. He was very thorough and knowledgeable. He has a background in physics and is an expert in his field. I will definitely be using him again in the future. I would definitely recommend him. read more