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Keystone Home Inspections

Giving You Our Absolute Best

Johnnie Sexton and family
About Us

As a young growing family with two children, trying to purchase our first home was incredibly stressful. The last thing that we wanted to worry about was the home of our dreams needing a costly major repair upon moving in. We were much more concerned about which shade of pink our daughter loved more and which couch layout would work best—all of the fun stuff!

Thankfully, we had a home inspector to trust and put us at ease. Our skilled home inspector inspired me to start my own business to offer everyone that same level of comfort and trust. As a couple who has been married for 13 years with two children, we understand the stress and difficulty you face during the home purchasing process. Let us take the weight of one of those stresses off of your shoulders!

About the Inspector

My name is Johnnie Sexton and I am the owner and operator of Keystone Home Inspections. When you hire me, you can trust that you’re getting the right man for the job. I have over a decade of experience in the construction industry and seven years in the plumbing field. These years of experience, especially the years I spent as a service plumber, have trained me to have a keen eye for detail.

I use my eye for detail to find problems in your home before they become headaches. I have been trained by one of the nation’s top training institutes and am a Certified Professional Inspector with InterNACHI.

The Keystone Promise

Choosing the right home inspector can be difficult. Unlike most professionals, you don’t typically meet your inspector until the appointment itself—after the hiring process has already been completed. Every home inspector has different qualifications, equipment, experience, reporting methods and pricing. A thorough inspection depends on the individual inspector themselves. If you hire Keystone Home Inspections to inspect your home, we guarantee that we will give you our absolute best effort.


At Keystone Home Inspections, a standard home inspection is anything but standard! Our skilled inspectors will act as your eyes, ears and hands while carefully inspecting every portion of your home or the home you are interested in purchasing.

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Pre-Purchase or Home Buyers Inspection

A home buyer’s inspection will let you and a professional inspector go through the home that you want to purchase with a fine-tooth comb. Our inspector will examine everything from the plumbing to the HVAC system. Our inspectors always offer an unbiased opinion on the condition of the home or make any personal gains. Our goal is to have every prospective home buyer fully understand any potential issues that exist within the home they want to buy.

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Pre-Listing or Home Seller’s Inspection

If you are preparing to sell your home, a thorough home inspection beforehand will allow you to correct any issues before they detract from the value of your home! Our home inspectors will walk through your home and identify any potential problems and potential solutions. A pre-listing inspection allows you to find out issues, use your preferred contractor and shop around before it is an urgent problem. Pre-listing inspections are the best way to get the highest amount your home is worth from home buyers.

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Maintenance Inspection

Even homes in the best condition start to degrade over time. Whether you’re living in a home that used to be new 20 years ago or starting to have issues with a 100+ year old home, a maintenance inspection will identify problems you wouldn’t otherwise notice. As your home ages, all of the systems within it age as well. Our maintenance inspection encompasses all of your home, from the basement to the attic, to identify hidden problems before they become a major pain.

Additional Services

Keystone Home Inspections offers additional services that include:

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Pool or Spa Inspection

A new home with a swimming pool or spa can cause a lot of heartache if it is in poor condition. Our pool or spa inspection services will carefully examine the pool to detect any signs of improper maintenance or damage. We will ensure that your pool meets the standards set by bother InterNACHI and ASHI.

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Water Quality Testing

Many homeowners need their well water tested before moving in or applying for certain loans. While wells are intimidating if you’ve never used one before as your primary water source, our water quality testing can offer you peace of mind. We will walk you through the process and test your water for 90+ different issues including heavy metals and bacteria.

Radon Inspection

Radon is a tasteless and odorless gas that is one of the primary causes of lung cancer in the United States. Radon is formed by decaying rock that seeps into plumbing, basements, and sump pump pits. Testing for the gas is critical, especially if you are in an older home. Our radon tests will be left in your basement for 48 hours while you live and use your plumbing normally. We will pick up your test, orchestrate the testing process and give you the results.

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Baltimore County Rental Inspection

Baltimore County law requires rental property inspections on a regular basis. We are equipped to perform these county-regulated inspections.

Baltimore City Rental Inspection

Baltimore City law requires rental property inspections on a regular basis. We are equipped to perform these city-regulated inspections.

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Sewer Scope

Any type of blockage on your main sewer line can cause slow drainage or a sewage backup into your home. With a sewer scope, we can tell you if there’s anything stopping or slowing your line like tree roots, corrosion or other damage.


Keystone Home Inspections is proud to offer competitive pricing and top-notch quality for all of our services.

Home Inspection Services

Our home inspection services are priced based on the square footage of your home, regardless of whether or not it is for home buyers, home sellers or a maintenance inspection.

0-1,000 sq. ft.                            $325.00

1,001-1,500 sq. ft.                   $350.00

1,501-2,000 sq. ft.                   $375.00

2,001-2,500 sq. ft.                   $400.00

2,501-3,000 sq. ft.                   $425.00

3,001-3,500 sq. ft.                   $450.00

3,501-4,000 sq. ft.                   $475.00

4,000+ sq. ft.                           Call for pricing

Additional Services

Some of our additional services include radon testing and Baltimore county rental property inspection.

Radon Test                                    $125.00

Baltimore Co. Rental               $115.00

Baltimore City Rental              $150.00
Single Unit/Home

Baltimore City Rental              $110.00
Multiple Unit Home/Properties


Keystone Home Inspections has assisted numerous area families throughout the home buying and home selling processes. We are proud to have many fantastic reviews and referrals from our valued customers. Here are some of our favorites.

Paul P.

“Johnnie was referred to me to complete a recent home inspection. I was absolutely blown away by the thoroughness of his inspection! He walked us through the entire home and explained everything. His report contained great detail of everything,pictures, and recommendations on how to fix the problem. I would gladly hire him again and refer him to others.” 

Allyson H.

“Johnnie is a true professional and tremendous at what he does. … Johnnie arrived (EARLY!!) with a box of donuts for us and bottled water. Who does that? Such a nice touch! He was thorough and patient with all of my questions and paid attention to every single detail. If you’re making the investment in a home, make sure you have Johnnie’s eyes on it first.”

Danielle D.

“Great first experience! Home buying is a whole new experience for us so it was nice to have someone explain everything to us and answer all of our questions. He even started early to do the outside while it was raining before we arrived so we did not have to stand in the rain.” 

Therman T.

“I actually chose Johnnie because of all the good reviews and now I’m here leaving mine. Johnnie was early (as he said he would be), knowledgeable, professional and friendly. He was responsive to all our (mine, my wife’s, my MIL and real estate agent) questions and very detailed in his answers. I suggest you give him a ring if you want a thorough inspection and pleasant experience. Thanks again Johnnie!” 

Kaitlin S.

“I’ve worked with Johnnie numerous times, and he never disappoints. He is extremely knowledgeable and always goes the extra mile! I would highly recommend him .” 

Tyler S.

“On the day of inspection he got there early and started inspecting and taking pictures and as you walk through with him he tells you what he is doing and why, describes problems he sees and what can be done about them. … On top of all this he is great at responding to calls and text messages, and will do everything in his power to help you. I highly recommend him for anyone who needs a home inspection! Awesome guy!” 

Sean D.

“As first time home buyers my wife and I went in having many questions as we went through the process of the inspection. Everything we asked was answered with very informative explanations. He was very professional and great to work with. We will pass on his information to others as we highly recommend him to others!!” 

The Brown Family

“Johnny from Keystone is my go to guy when it comes to inspections. Always flexible with his time and always does a great job. Thanks for your help this week Johnny.”

The Mumford Family

“I would highly recommend Johnnie at Keystone. He inspected my house like it was his own. Outstanding service!”

Meghan M.

“Johnnie just inspected our new house. He was very thorough and informative. Johnnie arrived before our scheduled time to begin the outside inspection. I highly recommend him! He’s very professional, and just one of the nicest guys you’ll meet.”

Rod S.

“Johnnie was Very thorough and explained his process step by step. His report was easy to read and included reference pictures. I highly recommend Keystone home inspections.”

Alexandra T.

“Highly recommended! Johnnie did a thorough job, and took the time to explain things to my client, and myself. His final report was fantastic, and was recieved the following afternoon! On top of his professionalism and knowledge, he was very friendly and had a great attitude! I would definitely recommend Johnnie to more of my clients!!”

Erica M.

“Johnnie was great! His knowledge and patience were unbeatable! I would definitely reccomend him for any of your home inspection needs!”

Will M.

“Johnnie inspected the home we are going to buy. He was so easy to work with and kept us informed of all issues. Great job and glad we used his services. Thanks Johnnie.”

Vincent L.

“Johnnie was excellent! He arrived early and conducted our home inspection with positive energy, attention to detail, and patience. We are grateful for his work.”

Quinton S.

“Johnnie is one of the best out there. He’s very detailed and knowledgeable about his craft. He’s done TWO inspections for me and both were nothing short of exceptional work.”

Linda P.

“Johnny was very professional and knowledgeable during our home inspection. He took the time to explain things to my husband and myself, addressed any concerns we had. Johnny was very honest and trustworthy! We definitely would recommend Keystone Home Inspection to family and friends.”

Deborah C.

“Johnnie was hired by two different clients this week, one single family home and a condo.  He did a very thorough job with both home inspections and radon inspection….I would definitely recommend his services!!!”

William C.

“I hired Johnnie back in 2017 for an inspection of an 1800s rowhouse in Baltimore. Wanted to write this review after getting a less than comprehensive inspection for another rowhome in a different city (by a different inspector). Johnnie was beyond thorough, spent as much time as he needed to go through all aspects of the house, and produced a great report. I had rented the home for several years prior, so knew it pretty well, and he didn’t miss an issue that I knew about.”

Meghan P.

“We used Keystone for the inspection of our new home. Johnnie arrived before our scheduled time to get a jump start on the exterior. He was great explaining everything, and did a very thorough job. His report was very quick and detailed. He’s and incredibly nice guy, and we couldn’t be happier with our experience with him”

Elizabeth A.

“As an experienced agent, I think that Johnnie is a true professional in every sense. He is very knowledgeable and friendly and makes the clients feel comfortable. He gives helpful suggestions and doesn’t scare the buyers.”

Laura B.

“Johnnie is fantastic! He did our home inspection this week and was amazing. Our appointment was in the morning. When we arrived he greeted us with donuts. I thought that was really sweet. He was extremely professional and thorough. He explained everything in detail to us and answered all of our questions. On top of all that he had our report finished and to us in less than 24 hours.  I highly recommend Keystone Home Inspections and will use Johnnie for any future needs!”

Contact Us

Get In Touch Today

Keystone Home Inspections is a customer-centered business, so we want to hear from you! Whether you need to schedule a home inspection or maintenance inspection, don’t hesitate to get in touch.

Phone: 443-567-0000

Alt. Phone: 443-643-6260


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