Get Your Report

A1 House Prep LLC and Inspections

Workphone: 215-853-8226

Harleysville, PA 19438

Follow me on facebook
My YouTube Channel

Robert Johnson

Before you purchase or sell your home or property, please call A1 House Prep LLC and Inspections. We can help protect your investment with a thorough home/property inspection! Call us now to discuss your individual inspection needs. Work Phone: 215-853-8226

About A1 House Prep LLC and Inspections

We perform thorough inspections at reasonable prices. We can help you get to know the condition of the property you are about to buy or sell, and give you the confidence you need to make an informed decision.

We are located in Harleysville and serve all surrounding areas. We look forward to hearing from you!


ASHI Member


13 Years experience. Over 6000 home inspections. Motto is to go "Above and Beyond" normal inspection services.


Outstanding as always !!! So precise, so detail and so prompt. Best part about Bob is he ends up giving so many tips along the way. We used him for our 1st back in 2012 and used him for new home too !!! Thank you so much !!!
- S.P., December 2021
Bob did a great job inspecting the home. He explained everything in detail and answered all my questions. Also gave lots of tips to take care of the house and appliances to prolong their lifespan.
- J.L., July 2021
Bob was an absolutely amazing inspector. He is not only personable, but extremely thorough and knowledgeable as well. You could tell by speaking with him that he genuinely cares about his buyers and wants the best for them. Going into the inspection I had heard nothing but great things about Bob, and now I understand why. I would gladly recommend him to anyone buying or building a home.
- J.F., June 2021
Very thorough and will always lead you in the right direction. Couldn’t have been more pleased!
- P.F., June 2021
Thoroughness and timeliness or inspection report were excellent.
- A.M., Media PA, September 2020
Great company to do business with!
- R.H., July 2019
Bob was extremely knowledgeable, thorough, and friendly. Exceeded expectations on what I thought the inspection process would be like. Happy to have had him inspect the house and I would recommend his services to anyone in need of an inspection. Thanks again!
- F.D., June 2019
Bob did an excellent inspecting our home. He was incredibly thorough, patient, and informative. He talked us through every detail of the house and gave great advice. He was a wonderful teacher and we highly recommend him if you're getting a house inspected!
- P.F., May 2019
Bob was professional, thorough and knowledgable. I wouldn't have wanted anyone else to do my inspection. He took 5 hours taking me through each system and room. He's a teacher at heart.
- T.D., May 2019
Bob Johnson goes beyond my expectations on his home inspections! R.M.
- R.M., May 2019
Hello Robert. It was a pleasure working with someone as knowledgeable as you during my important home inspection. I would not hesitate to recommend you to other home byers. Thank you for the quick turnaround on my complete home inspection report. Charles P.
- C.P., April 2019
Thanks for coming out at late moment on Saturday
- M.S., April 2019
Thank you, very thorough and knowledgeable. Report will be very helpful with future maintenance!
- M.S., April 2019
Very thorough and professional job, very informative! Your knowledge and input will be greatly helpful. Thanks
- M.S., April 2019
I really appreciate all the knowledge and wisdom you imparted to me. You're were extremely informative, so thank you!
- J.C., April 2019
Bob was very thorough and gave tips on how to maintain appliances. I felt confident in his inspection. I feel as though I can call him with questions.
- D.W., April 2019
Thank you for your honesty, integrity and all your time you spent providing me with all the knowledge needed to care for my new home.
- T.K., April 2019
Robert (Bob) was great!! He is thorough, extremely knowledgeable and friendly. This is the 2nd home I?ve had Bob inspect. I?d use him again if I needed to.
- A.M., March 2019
Super prompt, professional, and thorough isn?t enough to describe Robert Johnson. I greatly appreciate him looking into every nook and cranny of the house I?m buying to make sure I?m aware of any potential problems. I thank him for all the tips throughout the house I was given, and would recommend him to everyone!
- C.V., March 2019
Bob gave me so many helpful pointers during the inspection. He was thorough, friendly and informative. Thank you!
- J.B., March 2019
I'm so happy we did our inspection with A1! Bob was amazingly thorough from top to bottom, exactly what you hope for with a home inspection. I feel confident that we won't have any unpleasant surprises with our new home, and that's all thanks to Bob. Also, our seller is an elderly woman who is home-bound, and it was important to me that we accommodate her. A1 was totally willing to work with us to make sure the seller wasn't inconvenienced.
- A.B., March 2019
Bob was so thorough and walked me and my husband through everything he was seeing and doing during the inspection. As first time home buyers, this was so helpful! We appreciate all the insight and tips he gave us and the detailed inspection report. Thank you Bob!
- S.H., March 2019
Professional! Helpful advice! Detailed explanation! Bob has done a great job! Thanks!!
- X.Z., February 2019
Robert was very thorough and detailed with everything. He was also great when explaining tips to maintain your house!
- B.H., February 2019
The service was incredible. Very in depth and detailed and helped us throughout the entire process of the inspection. As a first time home buyer, he made the inspection not only smooth, but extremely comfortable, informative, and fun, and did it all with a positive outlook. Very glad he was our home inspector!
- M.F., February 2019
Thank you so much for being so thorough!
- E.S., February 2019
Bob is a professional like no other. He is truly passionate about his work and shares a wealth of knowledge while inspecting homes not only about what he's seeing but about ideal care and maintenance to make the most of your home investment. He's also easily the most thorough inspector I have ever worked with. Hire him now!
- J.K., January 2019
Best home inspector I have ever worked with in 26 years in the business
- M.H., Doylestown PA, December 2018
Super thorough and informational! Learned a lot about the house as well as different tips to make sure things last as long, or longer than they're supposed to. Very relational and looking out for the buyer to make sure you're getting a good deal! Detailed report is very helpful and provides even more information. Couldn't recommend Bob more!
- M.B., December 2018
Trustful. Professional and doing a great job.
- G.A., December 2018
Bob was a consummate professional. Extremely friendly and thorough. Thank you, Bob!
- S.G., December 2018
Excellent job- very thorough
- J.B., November 2018
Extremely thorough and mindful of items that tend to "scare" potential home buyers.
- D.L., October 2018
The best, most thorough home inspector out there! My clients are always raving about you after the inspection. The education lesson you provide buyers during the home inspection is priceless!
- R.O., September 2018
Very helpful and informative. Thanks Bob!
- B.S., August 2018
Robert is fantastic! He gave a very thorough look over the entire home while also providing us with a lot of information about maintaining the home and it's appliances so that we get the most out of everything. We also got some great ideas to improve upon the existing house, as well as some know-how on how to fix the small problems. We would definitely recommend him to anyone needing an inspector. Thanks again Bob!
- M.D., August 2018
Your most thorough inspection of my new home gave me peace of mind. Didnt even need to read the written report you sent later that same took the time to tell me everything i needed to know as sonn as you were finished inspection. Thats why i keep coming back to you. Thanks much, Bob.
- J.F., August 2018
Robert was professional at every moment, and had lots of advice. I will never use anyone else
- T.L., August 2018
Highly highly recommend Bob and Donna. They treated us like family and made the inspection process go smoothly. Very professional. We couldn't have asked for more. Bob is very knowledgeable and we feel 100% comfortable taking the final steps in purchasing our home. Thank you!!!!!
- R.L., August 2018
Great Job! Keep up the good work. I am very happy and lucky to get a detail report from you.
- J.B., Blue Bell PA, July 2018
Very thorough and added some notes for us to have also. Got the appointment very quickly since it was a bit of a rush to get it done in time. Thanks so much!
- T.B., July 2018
Very pleased with your thorough and educated services. Your wife was especially cordial and helpful. Thankyou
- K.G., July 2018
Bob Johnson was absolutely fantastic to work with. He was extremely thorough and detailed in his explanation for everything. He gave us tips and tricks as new home-buyers to extend the life of almost all of our appliances and focused our inspection to our needs. I will be recommending Bob & the A1 House Prep LLC and Inspections company to everyone I talk to!
- R.B., July 2018
Bob, Thanks so much for working us in to your busy schedule. We really appreciate it. Your report was very thorough. Thanks so much for your help!
- W.K., Norristown PA, June 2018
Thanks for your time Bob you where good to me and thanks for all the info and answering my question
- P.W., June 2018
Bob was an absolute pleasure to work with. His knowledge and steadfast dedication to his job leaves us with zero doubt on his capabilities
- L.S., May 2018
Bob was both thorough and informative. I feel confident that every potential issue was addressed. I also came away from the inspection with a wealth of information on home maintenance, safety and the workings of the mechanical, electrical and plumbing systems of the home.
- D.O., May 2018
Thank you Robert & Donna appreciate the thorough inspection on such a large property. Best Regards Stew
- S.T., May 2018
Mr Johnson was extremely knowledgeable with all aspects of my home inspection. He walked me through everything and explained why things are. And he gave me pointers on way to keep certain things new and functioning. I am far from a handy person or a knowledgeable person with construction, but Mr Johnson explained things in way even I could understand. I strongly recommend him to anyone getting a home inspection done.
- J.G., May 2018
Bob was thorough in his assessment of the property and took the time to educate me in his findings. Not only does he have all the latest gadgets, he also has a ton of experience which makes for an awesome combination. I would highly recommend Bob to any potential homebuyer.
- M.M., May 2018
What a pleasure it was walking through my son's future home. I felt you were extremely knowledgeable and informative. Thank you for all your wisdom. You gave me some homework to do in my home.
- M.M., May 2018
Very helpful and communicative.
- A.S., May 2018
Thank you for inspecting our future home! Bob was very easy to talk to and a wealth of information. Would definitely recommend!
- A.S., April 2018
Very detailed and positive outlook on the house. Informative with many helpful tips on upkeep, maintenance, and how to repair the self-repairable things. Very personable and you can tell he likes what he does. Will definitely recommend.
- S.S., April 2018
Bob was very thorough and provided detailed explanations.
- R.H., April 2018
He was both professional and thorough in his inspection. He took the time to explain what he was doing and gave tips on how to extend the lives of all the home components from the heating/ac to the garbage disposal. I would recommend him to anyone.
- K.S., March 2018
Thank you very much Bob, It was a pleasure meeting you I strongly recommend you I am very satisfied with yours service.
- C.J., March 2018
My Husband and I both said we would recommend Robert Johnson to anyone buying a home. He is thorough, knowledgeable, and friendly. We were very happy with the care and expertise that Robert Johnson provided during our inspection.
- H.D., March 2018
Thank you so much for always completing an extremely well done job!! We have bought a lot of homes and you have always provided us the total confidence in this process of what we are getting ourselves into. Thank you again for a great job.
- J.W., January 2018
Bob was a pleasure to work with. His report was very thorough and detailed. He educated me on a lot of aspects of home maintenance that I wasn't aware of as a first time buyer. Hands down would recomend this inspector to friends.
- M.R., January 2018
Great and Very knowledgeable!
- P.E., December 2017
Bob is the best!
- V.C., December 2017
Robert Johnson is incredible. He is not only the most thorough and knowledgeable inspector I’ve ever seen. He was also the most helpful. What a great experience we’ve had. Thank you Robert!
- J.M., December 2017
Mr Johnson was very thorough and provided us with professional, real world solutions to most issues.
- W.P., November 2017
Over my lifetime so far I have purchased eight homes and I never saw a home inspection that was more thorough than that Performed by Robert Johnson of A1 House Prep. He took many pictures to illustrate what he was looking at making it a lot easier for me as the buyer to identify and locate. He even took videos . I am very impressed with his work and his company and should I buy another house in the general area I will gladly contract with him again .
- C.W., November 2017
Without a doubt, Mr. Johnson is top shelf when it comes to giving a thorough and thought worthy whole house inspection and our barn. I walked with him for the entire length of the inspection and not only did I feel Mr. Johnson was more than competent, he is an interesting and informative person, giving information about the histrionics concertinaing the area we're moving to, and so may details about this house. I would recommend Mr. Johnson to any person purchasing a home. The final report emailed me was complete and surely will aid us when doing any necessary fix-its on this property. Thanks Bob, my son is just buying a home too, I'll be recommending your services to him too.
- R.C., November 2017
Bob was incredibly thorough and very practical. Straight-shooter who offered great suggestions and pointed out important issues to be aware of. Highly recommend, you can't go wrong!
- J.K., November 2017
Bob was wonderful. This is our first home purchase. Bob was extremely thorough throughout the inside and outside of the home. He walked us through every room in the house and explained how to correct even the smallest issue. He also explained basic maintenance for the appliances, as well as provided tips to just keep the house overall healthy and maintained. We were really impressed. He also took the time to note areas that could cause issues for children (like railings), and more. Even though we walked through the house with Bob, we still read over the home inspection report and were pleased that it was as meticulous as is in-person report. Lots of photos and details on how and why things should be fixed. Our new home is two stories with a steep roof. I was surprised to see Bob pull out a drone to take up close photos of all angles of the roof. I'm really confident that the roof is in great shape after being able to view nearly a dozen angles of the house. I highly recommend Bob to other home buyers. Thanks Bob!
- L.L., November 2017
Bob, it was a pleasure having you as our inspector. We appreciate your detailed report and your detailed explanations on location. We would highly recommend you for an inspection.
- T.B., July 2017
Hi Bob, it was such a pleasure to meet you and to learn from you! You are an incredibly knowledgable and detailed oriented and I wish you were still in business so I could sent you tons of business! I will refer you for sure to anyone that needs help with smell remediation! Thank you again for teaching me as well as doing such a great job! Janka Slivova
- J.S., April 2017
My husband and I have never seen such a thorough, impressive and detailed home inspection. The report was a honest and thorough report, with detailed videos. I would highly recommend you to friends and family. Please feel free to use us as a reference. Your inspection was worth every cent. Totally impressed! Thank you, Cheryl and Bob Walters
- C.W., November 2016
A very thorough inspection with helpful advice on how to repair and upkeep the home.
- J.H., October 2016
4th time we use Bob! He is the best in the business
- D.G., philadelphia PA, July 2016
WOW is about all that needs to be said. Incredibly knowledgeable, highly personable and professional and amazingly thorough!! Bob went through the property with a fine tooth comb - report is comprehensive and easy to understand!! HIGHLY recommend!!!!
- A.T., October 2015
Robert Johnson is the best home inspector I have come across in my 10-Years in Real Estate. I use him on every deal. Bob has extensive knowledge of every component within the home. I would highly recommend Bob and Imperial Home Inspections!
- J.F., September 2015
Thank you so much for the detailed home inspection, Bob! Phenomenal job!
- D.B., July 2015
- K.M., June 2015
Could not have asked for a more professional assessment . Bob was so kind as well, explaining every small details that would save us ( new homeowners ) a lot of time, money and angst in the long run. I will recommend Bob to one and all.
- S.M., June 2015
Best home inspector I have had the pleasure of working with. Bob is very informative and loves what he does. Good luck with the portable ladder!!
- S.G., June 2015
Robert, You provide a great service. Thank you for your time. Jameson & Laura
- J.L., May 2015
Great job Bob. Thank you. Use me as a reference please. Irene
- I.R., November 2014
Great Job by Bob, I am thoroughly impressed about his strong work ethics. best, Lijoy.
- L.M., November 2014
Bob was very professional, confident, and extremely through. He explained how things worked and the life expectancy of an appliance, roof, ect. He gave us tips on keeping things in good working order and what to do to keep things as maintenance free. Bob had all the tools necessary to complete a through inspection and was extremely details oriented when checking out our potential home. We would 100% use his services again & highly recommend Robert Johnson of Imperial Home inspections!!! Ray & Eileen Bryant
- E.B., September 2014
Bob, You were terrific. Very accurate work. Excellent by far and your tips were great too. Very helpful. Rating of 1- 10, ten being the best, we would rate you ten. Thanks again for coming on such short notice and please tell John we appreciate him coming out also. Jim & Carol
- J.H., September 2014
We put in a new price bid of $27,000. Due to the inspection report.
- C.B., July 2014
Robert Johnson was awesome!!!! Very thorough and very professional.
- M.B., July 2014
you did a good job
- A.P., July 2014
great job Bop! It was a pleasure dealing with you.
- M.O., albrightsville PA, June 2014
Totally professional and thorough. The highest recommendation we can possibly give is to recommend Bob to all our closest friends and our family members. His tips will save us more than his fee on an annual basis and his thoroughness is going to save us thousands of dollars and more importantly many less problems going forward. Thank you Bob for a job so very well done. Ed & Kathy Smyth
- E.S., May 2014
Bob is the best He is accurate and diligent
- M.S., May 2014
Mr. Johnson provided clear and thorough explanations throughout the entire inspection. He was able to answer our questions and gave us instructions and suggestions for the care and upkeep of the house.
- F.C., May 2014
Thank you for your excellent work on this home inspection. You are very professional and knowledgeable.
- J.S., April 2014
Thank you for such a thorough inspection and report. I would recommend your service to anyone looking for a professional home inspection.
- J.M., January 2014
A++ in all categories of a professional! Robert did an excellent job in both the inspection as well as the follow up information he provided. Recommending to everybody I know!
- R.S., December 2013
Extremely thorough and detailed. I will absolutely recommend you to all my friends. Thank you for your help with our home inspection. DT.
- P.T., November 2013
Very informative high quality inspection. You made everything easy to understand and interesting. Thank you again!
- T.S., November 2013
Mr Johnson is a true professional. Explained everything he was doing and was very thorough. He has my highest recommedation!!! Michael DiMarcantonio
- M.D., November 2013
I have been in real estate business for more than 12 years and I must admit that I have not seen such a great and dedicated home inspector like Bob. I would definitely recommend Bob Johnson to my clients and colleagues.
- G.F., Huntingdon Valley PA, October 2013
He was very professional and took his time to point out issue in the home. We would gladly recommend him to any of our friends and family. The report was very well put together and the self help videos are excellent resource for us to maintain our house for years to come. Thank you!
- J.B., July 2013
Bob was recommended to me by my realtor. I was kinda hesitant to use him because of the potential conflicting interests. However, I realized it is my best decision. He did an extremely thorough inspection and explained everything. He used more than 4 hours to inspect my 1800 sq ft home, every corner, from top roof down to the floor.
- X.Y., July 2013