Reviews

Efficient, honest and knowledgeable

Great service from Jason Spear

Ryan was very good at his job. He walked us through every aspect of the installation of our new log set for our fireplace. Very friendly. Thanks Ryan for helping us on the installation.

Godfred was terrific to work with and very knowledgable. Explained everything in a way that was easy to understand.

The technician was very professional, exemplified great customer service, was very polite and knowledgeable.

Very knowledgeable and helpful. Can't wait until my fireplace is fixed.

Jason and Jacob were great. They were on time, polite, and explained every step of the processes. Jason was able to explain everything he found and any remedies that may be necessary. Overall great service.

Matt was extremely helpful in educating me with care and feeding of gas log fireplaces. I was comfortable with his easy going, but technically savvy specking style

Haywood was very friendly and informative and did a great job! I highly recommend OHA for HVAC services!

very friendly and great service man!

Matthew was timely, professional, and explained to me in detail everything he was doing and why. Very happy with this company.

Josh provided really awesome service. He showed up and was able to figure out why am my heater was not lighting and fixed the problem very quickly. He was very generous and kind of time in one above and beyond. He noticed that our filter needed to be changed and grabbed one that we already had and changed it for us. Give us a lot of insight into our thermostat settings and system to help us save some money and to help the system run a little bit more efficiently. He was very knowledgeable and very kind. I would recommend him to anyone.

A true professional!

Michael was knowledgable, friendly and efficient. He completely resolved the issue I was having and helped me save money on my visit. Would definitely recommend!

Robert and Elijah were great. They stopped by the book first to make sure they had everything before starting the job. They asked before turning off the water and kept both myself and husband in the loop of the problems, repairs, and how to resolve other issues. The job took less time than quoted which was a plus! OHA has never let us down no matter what he have had done.

True professionals. Outstanding service.

Very nice efficient, came within the time frame. He cleaned the stove pipe and left no mess.

Kevin was a big help with doing the chimney vent inspection and filling out the certification to get my water heater permit passed. Also big thanks to Jonathan who helped contact Fairfax County to verify the mechanical license piece. Thank you!!

Quick service, good tech, company works with urgency and has a lot of services. However, this job was pricey for the end result. Estimate and job time were under 1.5hrs altogether and parts were maybe $200? Invoice was over a grand for a stainless steel chimney flue cap installation.

Johnnie showed up on time, resolved the issues and was courteous and timely.

Great service. Very informative.

Had Bernie out to give us an estimate on HVAC replacement and he did a very detailed estimate. Excellent work.

We had a faulty air handler that resulted in a mild emergency. Brian came out to assess and advise on how to proceed. He was incredibly direct and helpful. He guided us on all of the options offered and which was most beneficial for our home. Later, Technicians Donovan, and Ashton installed a new HVAC system. They were well versed, and professional. They were mindful our house and took steps to avoid causing any accidental damage to the walls and floors. They also answered all questions that we had. Once finished, they removed all trash leaving our residence the same as it was prior to their arrival. OHA, and their employees customer service and professionalism is unmatched.

Showed up early and did a very thorough job

The OHA team replaced our entire roof. And replaced some roofing boards. The installation team was very detailed hardworking and meticulous. Our house roof looks really good now! Quality roofing material and shingles. Great price!

Chris D. was yet another technician that made me glad I switched over to OHA. Up front about the issues my system had and patient with me as I like to know the nitty gritty of the situation. Trusting the people doing my repairs is what I value most and I can say OHA is a company I trust wholeheartedly.

The best! Amazing customer service. Super responsive, timely and reliable. I cannot recommend Crown highly enough.

Were great and did quality repair in a timely manner.

Exceptional customer service. Seamless experience from start to finish. Thank you!

Excellent service. Impeccably professional. Installation went smoothly without any hiccups. Highly recommend.

Our Tech Knows his stuff and was very efficient. He gave us a detailed report of the work he performed. We trust Jason Spear and will have him back for all our HVAC needs.

Joshua from OHA is a professional and competent technician who provided excellent service while repairing my HVAC system. I highly recommend this company......ask for Joshua for all of your HVAC needs.

Joshua provided competent and professional service repairing my HVAC system. He was courteous and respectful of my home and kept me informed throughout the process. If I have issues with anything HVAC I will request OHA and specifically Joshua for a fast and professional repair! Thank you Joshua!

Brice was a 100 out of 10. Very professional while also personable. Extremely knowledgeable in his craft, and very forthcoming. He provided a lot of tips for me and the future of my HVAC system. He also convinced me to sign up for bi-annual services. If youre fortunate enough to have Brice work on your system, consider yourself lucky. To his supervisor/manager/leadership, keep on your team by any means necessary.

Jason was awesome with todays service, he recommended getting my chimney cap epoxy sealed. He also recommended mortar pointing and caulking of the J channels!!! Really great!!!!

Quick response for our gas fireplace repair. Our technician Brice was friendly, competent and quick. Highly recommend

The technicians Angel, Elijah, and Essix were great. They completed the repairs efficiently and expertly and kept me in the loop. Very professional and very happy with their services from quote to finish.

Once you experience the best why call the rest!!! Lame but factual OHA is the best service provider my family has ever worked with for the following reasons. Availability Expertise Great pricing Quality recommendations Literally had 5 quotes and nobody was as thorough as OHA including 2 other 5 star plumbers. S/O Angel, (top dawg) Essex and Elijah (exp newbies) There is always a knowledgeable expert available rather they are new or old with the company as training provided is top notch.

Very professional, clean & efficient. Even with the few hiccups, Danny did an excellent job.

Clogged sink

Robert Richard came out to give us an estimate for a replacement water heater. He was great answered all our questions and gave us a few options. Thanks for prompt service

Danny did a great job flushing our water heater and we will definitely use OHA again.

Bernie rebuilt my gas fireplace. He was courteous, knowledgeable, and professional. My experience with OHA has been extremely positive and I would highly recommend them.

Excellent and rapid work

OHA is top notch. Kevin was timely, professional, extremely knowledgeable and first-class all the way. He repaired my gas fireplace quickly and the actual fix ended up being much less than the original estimate. Will definitely have OHA at the top of the list for all of my properties HVAC and plumbing needs.

Johnnie Tyler from OHA did an exceptional job fixing a few things with my HVAC. He explained the problem and took time to do the job right using the right material. I highly recommend that you ask for Mr. Tyler from OHA.

Angel diagnosed the problem, picked up a new disposal, returned, and installed the new disposal in 75 minutes.

Replacement HVAC installed as quoted and on time. Technicians Johnnie & Lorenzo provided great service!

Robert was to the point and very helpful. Angel and his team came out and did a great job. They were in and out, the water was restored and the new water heater works great!

Extremely friendly and professional.

My husband and I were pleased with the fast and courteous installation of our replacement Mitsubishi Mini-Splits that are now cooling really well. Brothers, Johnnie and Lorenzo, worked well together as a team. They even came back an extra day to clean up the outside of the sheet metal cover over the heating/cooling lines they had sealed to keep the squirrels from nesting inside during wintertime. Overall they did the job cleanly and efficiently.

Chris was a friendly professional from the moment I walked up and he stepped out of his van. He explained all aspects of the job, what he would need to, and cleared it with me before starting. He talked with not just as a customer but as a fellow serviceman. Once completed, he cleaned up after himself, reviewed the work, completed the paperwork, and headed on his way. I recommend this company! Steve

Angel Feliciano is a top-rate technician. He is knowledgeable, courteous, and highly professional. He took the time to explain things in layman's terms, and I am a better customer for it. I will specifically request Angel for all future maintenance calls. Well done OHA!

Excellent installation of new HVAC system. Johnnie and his brother explained everything and answered my questions. They both worked efficiently to get the new system tested and running. Highly recommend this company.

Bernie, the technician was timely, communicative and through in the process to evaluate our HVAC system professionally. Great service all around!

Im very pleased with the service Godfred Wiafe offered us. Our air conditioner was malfunctioning, but he fixed in about 30 minutes. He gave me good advice on what to do should that happen again, told me what to expect given my units age, and didnt pressure me to accept a yearly maintenance plan. Ill be calling OHA again.

Very pleasant to work with. very knowledgable

Joshua, our technician, performed his duties with excellence and integrity. He was thorough and provided suggestion how we can keep our systems in good working order. He replaced one part, which was under warranty. I will ask for him again. Well done, Joshua.

I wasn't there for the install, but if Robert was the guy who actually DID the install, my wife was impressed. I also think the install looks very well-done. I thought $5,000 was a bit steep, and I don't see details on the 'extra' warranty protection in my invoice. Finally, I'm totally confused about the "inspection" mentioned in my invoice. Am "I" responsible for lining up a county inspection?? Is a county inspection required??? No idea what is supposed to happen in that area.

Chris was polite, professional and did everything within his power to ensure that I was satisfied with the final product.

OHA service was great once again. They installed a new unit for us back in 2021 and its been working great ever since. Today we installed the Air Scrubber and were looking forward to seeing the results of that. Our tech Godfred was awesome and customer service was great as well.

Joshua was not only prompt and courteous, he knew exactly what was going on and quickly remedied the situation (including educating me on how to avoid it in the future).

Rob was awesome and fixed everything quickly.

The technicians that arrived to perform repairs and replecement of the aircondition unit were all very professional! All wore booties when entering the home. Only complaint I have is that somehow, with the turning off of the gas to the house and turning on again when finished has noticeably decreased the hot water temperature within the house. Soething I am sure the returning technicians will correct appropriately.

Fred was quick to respond, very informative, knowledgeable, and answered all my questions.

Very professional, show up on time, very polite, knowledgeable., overall great service.

Excellent service. Problem was diagnosed and fixed quickly. Many good recommendations to keep heat pump working efficiently. Very personable technician. Was on time and professional.

Great company. I will use your services again. Thanks guys

I had to have a new AC unit installed. The team that came out did a fantastic job. They were punctual, professional, had great attention to detail, friendly, and loved my puppies haha. I would highly recommend going with OHA for HVAC services.

Great service , professionalism from this company tech Brian Hatfield was excellent and very helpful by providing additional insight !!

Quick, efficient an completed his task quickly.

Kevin was excellent. If we should ever have a problem with the fireplace, we would definitely want him. Thank you!

Just had our HVAC system replaced. Wonderful company to deal with from start to finish. Highly recommend!

Very professional and friendly! Was on time with a 20-30 minutes notice prior to arrival. Got the job done and our AC is running better than ever! Thank you Brian.

Very helpful

Brice did a great job solving my problem. He installed the sump system and verified operation with my existing system. Great job.

The technicians were attentive and diligent. They wasted no time getting the job done .

I had a diagnostic appointment for my propane fireplace. The technician was thorough and polite. He found the problem quickly.

Technician was on time and explained what was to transpire. After his assessment he reviewed app item required and provided a quote for my review. Once I accepted the quote the parts could be ordered which I accomplished on 7/30/25. I am now waiting for the part to arrive at OHA for the work to commence.

Mike and Jason are very knowledgeable technicians were able to troubleshoot the foul odor coming from the chimney and remove the dead bird and excess dirt accumulation. Also, identified additional corrective chimney issues. They were respectful of my home in cleaning up areas from where work that was done. Would recommend for future chimney services.

Responsive. Professional, caring and efficient service. A friend needed an HVAC repair and it was completed the same evening. Thank you!

The tech came early, was very professional, nice and very explanatory with my questions. It was a 2 a year check up for the unit they installed. Very satisfied.

We are so happy we called OHA HVAC. When we called, Kristen sent Bernie to help us with our AC as soon as she could, My Dad is 92 years old and the temperature was dangerously high. When Bernie got there, on time, he immediately jumped into action repairing the ac. In no time he found what caused the ac to stop working and fixed it toot sweet!! Thank you Bernie for not only being the best ac Technician EVER, but being so kind, respectful and concerned for my Dad. Also, thank you Kristen for being on the front line of OHA HVAC. They couldnt do it without you!

Great technician, responsible service...highly recommend this company.

The service was fantastic and efficient with the follow up work. Looks good as new after the repairs were made and have no more concerns with our roof. Representatives from OHA were very kind and mindful of our concerns and lead us in the right direction and kept us informed on the progress till finished and even went the extra mile by cleaning out the down spouts on the back of the building as well. Very pleased! 🙂

Technician was thorough and explained all options before performing work. Would recommend!

Bernie Miller is an excellent, informative, HVAC Specialist. He gave great advice and insight on the entire AC replacement process along with good follow up care.

Our technician Christopher did an excellent job. OHA is or go to for AC repair.

Michael was GREAT!!! Very informative, professional and friendly!

Air conditioner was installed quickly and efficiently! Johnnie Tyler was professional, polite and an expert at his job.

My experience with my last visit with OHA was one of the best I have experienced in a long time. He explained things thoroughly and did not try to upsell me for services I do not need. Thank you, OHA, for sending such a qualified technician.

Response is fast, diagnostic accurate, and quotes process nearly painless. I am in the middle of making a decision for our broken heat pump. Oha was the first company I consulted. The second opinions I have received have agreed with the assessment Oha gave. Im am very likely to choose Oha for our replacement.

Carlos did a great job servicing my unit yesterday! Would highly recommended this company for any needs. They replaced my AC/ furnace last year and also got my chimney up to code. Great company love them.

This is the second time our AC broke down on a weekend (2021 and 2025). OHA was available same day. The technician, Shabeer, was able to fix it during the first visit. Shabeer is knowledgeable, thorough and personable. Overall, it was an easy experience.

They beat all the other competitors and promised better quality of work. The where in and out. The new unit works great. Thank you for doing a great job!

Kevin was great. Loved the transparency. We will be returning customers for sure.

Godfired need an excellent job on our equipment. Thank you Godfired

I've only so far dealt with Brian, the technician that came out to assess my replacement needs and provide options. Brian was personable, knowledgeable, and straight to the point. No haggling or trying to upsell. Very honest and I really appreciated that. So much so, I decided to allow his company to further earn my business with a full hvac replacement. He was the 3rd tech/salesman to come out and provide estimates but he just felt rightand i immediately signed the contract. I'm really hoping and praying my pleasant experience continues when the installers come in a few days. Thank you Brian. You helped me to be really comfortable with going with your company.

Knowledgeable, Helpful, Professional, Courteous

Joshua was fabulous and patient while working on my units!

Today, Jason Spear from OHA came by to check a leak in the hot air vent stack on my roof. He was on time, courteous, concise, and got the job done very efficiently. Needless to say, I highly recommend OHA (and Jason) for all things! Thanks again!

Ashton from OHA was part of my install team for a new HVAC system for my upstairs . It was such a hot day and he just kept working. He has an amazing work ethic !

Kevin did a great job with our HVAC system. Thanks, Kevin!

Joshua Williams is a top notch service tech. Professional, knowledgeable and thorough in the performance of his work. Answered my questions and completed the task at hand in a timely manner at a reasonable cost . I will definitely request Joshua if any additional service related work is required in the future.

Johnny and Lorenzo did an excellent job installing my new HVAC system! Their professionalism and "can do" approach made this major project so much easier on me! OHA is my go to company.

Ryan was quick, respectful, and experienced. Thank you for your service Ryan!

Amazing gentleman, came in quickly, assessed the issue, and got to work. So far has a significant improvement on the HVAC cooling! Thank you!

Brian from OHA was wonderful. He was very professional, courteous, and up front. This company has been great both times we have used them, and we will continue to use OHA.

Joshua was thorough and determined to resolve the issue with our air conditioning unit not cooling. He made sure we were comfy and cool before he left.

On time. Quick diagnosis and service. Professional. Godfrey was a winner.

I hadn't had my AC serviced in 6 years, as a brand new construction. I had no issues during the whole time frame, until I did. When I searched for AC services, OHA HVAC is the company that appeared, and had 24 hours available services, and that was important in my decision to use them. The Service Desk Intake representative was very professional and helpful in identifying what I needed. The HVAC Specialist who arrived at my home to service my AC was very professional, knowledgeable, friendly and sociable. Mr. Williams explained what he was going to, and why the things he did was going to improve the AC system. Observing him working and asking questions, also allowed me an opportunity to learn what I didn't know before, and to be more informed that I was before. I'll definitely recommend OHA HVAC to my community neighbors. Respectfully, submitted. Quintin

Outstanding service installation in every regard. Gary

We just bought a house and needed our AC system looked at. Godfred Wiafe came out and took really good care of us. He was extremely kind, knowledgeable and helpful. I would absolutely use this company again and would be happy and considered lucky is Godfred is able to come out again.

Joshua was incredibly helpful with our HVAC. He arrived on time, spent time investigating our system & explained the repairs required and the optional steps we could take. Excellent service!

Josh is fantastic. Very efficient and thoughtful in presenting options.

Wonderful young man! Took care of everything

I appreciated having Godfred come out today. I did not give him a 5 star review because I felt like I had to ask more questions based on the limited information that he gave me upfront. As a customer who knows nothing about air conditioning and how it functions it wouldve been helpful if he took the time at the beginning to truly explain for me the details of the work that was involved. In addition, it did not seem that he was very clear on the difference between the gold and platinum offerings, and it wasnt until I asked him to speak to a supervisor that the supervisor was able to offer a better deal for me. At the end of the day, the number of pictures that he took to show the difference between what it looked like at the beginning and the end really helped to see the work that was involved. I was the last customer of the day so that couldve made a difference in how he felt from the beginning of the day to the end. I am sure that he was very tired, but When you are spending a lot of money, it is important to feel that someone is investing a lot of time to explain the intricacies of the job upfront.

Showed up on time. Was able to work around our pets. Even during a very hot day they got the job done on time. Were very nice and cleaned up any mess.

Bernie did a great job finding out why my AC shut down and then fixed it. Very knowledgeable, efficient and friendly. Made sure everything was working properly. I highly recommend him.