“They couldn't be any better if they tried. They're always on time when they call you. They do a good job. They give you an honest price. I've compared them with other places and most of the time they've beaten the prices. They're a family organization and it shows because they just do a great job and all the people that work for them are very, very pleasant. You don't have to worry about them being in your house or anything. Nothing ever disappears. I just can't speak highly enough of them. They've done a lot of work for us. They put in an air conditioning system. They've worked on our heater. They do work on our air conditioner when it needs to be reviewed and so forth. They've done plumbing work for us. They put in a powder room for us from scratch. I'd give them an A+ overall.”

“Those guys are awesome. They'd done plumbing and heating for us a number of times. They typically send people out that are above and beyond interested in their craft. The people they send out are obsessive about their craft. The guys that put my furnace in, I could tell they were in love with their work. You know what a difference that makes when someone is truly passionate about the work they do? That means my space, the space they're working in is clean, the installation is quality, they're happy to explain things to you. I've had that for heating, I've had that for plumbing as well. Guys that are just close to obsessive about the work. They're just passionate about the kind of work they do, and that makes a difference to me. That really makes a difference to me.”

“They have done a lot of work for me. I had a new heating system put in, and they were really good during the whole situation, and then I've had follow-ups with them and service. They guaranteed everything for five years, and it's just up now, and it's been a great experience. They have done some other plumbing work for me. I would grade the overall experience with an A. I would highly recommend them, and I have already recommended them. They are a great company.”

“I liked that they called you and reminded you of your scheduling, and your maintenance. They are thorough, and if something is wrong, they show you and point it out, they are not forcing service on you. I have a maintenance plan, so they checked the central air, checked my heater, checked the plumbing to make sure it's all up to code. I would grade the overall experience with an A+. I would highly recommend them to a friend.”

“They've been doing work for me for years. I got a lot of rental properties with them, they get out there right away. They’ve installed heaters and they installed central air. I'd only give them an A overall. Quite honestly, there's one, maybe two of their guys that have keys to the rental properties. That's how much I trust them. I have recommended them before to my neighbor on the street where I live.”

“I liked that they were on time. They did great work. Never had to call them again. They cleaned out my heater. They replaced a line from the street coming into the house. They did work on the bathrooms, putting in faucets and everything. I would grade the overall experience with an A+. I would highly recommend them to a friend.”

“They were very professional, very clean. The men were very nice. They did their job. They were quick, efficient. I have no complaints. They were A+. They installed a new heating and cooling system. I had work done after that and I'm very pleased with Henderson.”

“I liked that they kept the house clean, and they were quick. They did heating and plumbing work for me. I would grade the overall experience with an A-. I would very likely recommend them to a friend.”

“I liked that they were knowledgeable and did the things right. They repaired my heater and installed a new air conditioner. They did plumbing work. It was hot water and they fixed the pipes. I would grade the overall experience with an A. I would recommend them.”

“They've done several jobs for us. I'm happy with what they did. They have done heating and air conditioning, drainer and sewer work for me. I would grade the overall experience with an A. I would very likely recommend them.”

“They're still not done but they've been keeping me informed. It was an issue with the A/C. They have done plumbing work for me in the past. It's a repair for the A/C. I'd give them an A overall.”

“I liked that they fixed my heater. This is not the first time I've used them. In the past, they did the same thing. I would grade the overall experience with an A. I would recommend them.”

“They did a nice job. They did a furnace and water heater tune-ups. I would grade the overall experience with an A. I would very likely recommend them to a neighbor or friend.”

“I liked everything. they were fast, they worked with me on payment, and the work was done properly. They replaced the hot water heater. They also did some minor service to the A/C unit. I would grade the overall experience with an A+. I would recommend them.”

“They were very thorough. They labeled all the pieces of the stuff they worked on. They labeled different on/off shut-off valves for us. That was certainly helpful. They worked on the air conditioner and the heater. They did the kitchen sink trap. I'd give them an A overall. They were very good.”

“They were very prompt. The guy was very clean in his work. And he was very quick and efficient. He was checking our air conditioning system for any leaks or anything like that which we have done once a year by them. We've been using them for three years. I'd give them an A overall.”

“They’ve done work for me many times. I've never had a problem with them. They come, they do the work, I'm satisfied, and that's it. I pay them and there are no issues. They did work on my heater and they did some plumbing work in my bathroom. I would give them an A overall.”

“They did a good job, a very nice job. They just did two services. One was an air conditioning issue, and the work after that was an air conditioning checkup. Both times they were in and out and clean and professional and they did a nice job. They have never done any plumbing work for me, but if I had, I would certainly use them if I need too. I would grade the overall experience with an A. I would recommend them..”

“They are fantastic. They respond very kindly. They gave very thorough answers. You ask them questions, they give you an honest response. Their work has always been high quality and up-to-grade standards. They are very easy. They are very practiced about reaching out to you. Very friendly. Everybody I met there is friendly from the front desk people to the actual workers themselves who visited my home. I always feel that I'm in good hands with them. They have done a couple of big projects. One, they put in a utility sink in my basement and they also put in a new hot water heater. On top of that, they do yearly A/C inspection and yearly water inspection, and they also put in a new garbage disposal for me. I would grade the overall experience with an A+. I would recommend them.”

“They're prompt and fast. They replaced a board in the A/C unit. I'll give them an A+ overall.”

“They do our A/C and plumbing. I'd give them an A+ overall.”

“I liked that they were on time. They did a heating and cooling maintenance, as well as plumbing. I have been using them for three years. I would grade the overall experience with a B. I would very likely recommend them.”

“I had my bathroom completely redecorated for my new husband. And I called Henderson to do it because I had always used Henderson and have had good luck with them in the past. So, I had the bathtub taken out and a walk-in shower put in and a new toilet and a new sink and a new medicine cabinet all put in and there's something wrong with the sliding doors on the shower, they don't close completely. And when I called them they gave me the name of the person who made the shower. They didn't look into it themselves or really do anything about it. Then just recently the mirror on the medicine cabinet just fell off the door on the medicine cabinet and when it fell off, of course the glass broke, we could see that it had only been taped up there. It hadn't been put on in any way that would cause it to last 20-30 years at all. And so, I called the owner, and I wasn't able to speak with him. He never called me back and I called him several times over a long period of time. And he never called me back. So, I can't tell you how disappointed I was. I had used these people for years actually. In the past, they had done heating, air conditioning, and they had taken care of all of those types of things in our house. It's just so rude for the owner not to call me back immediately and apologize and discuss what's to be done. My thought wasn't that he would have to pay for a new one and put it in free, I wasn't expecting anything like that. But I did think he would at least put in a new one and just charge us for the work or just charge us for the new one, vice versa. It's shocking really that the owner of the company would treat a good customer like that. I'm thinking that I had had good service from them before that. All of these things happened with the new bathroom. I'd give them a C overall. The customer service was fine until there was a problem, and when there was a problem, it was terrible. I'm not at all likely to recommend them.”

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“They were excellent but very expensive.”

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“Prompt, professional service. Tech person was very forthright and honest about assessing the problem and made recommendations that saved me the expense of replacing a section of pipe/valve. I highly recommend Henderson not only because of their exemplary customer service but their technical expertise and professional conduct.”

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“Technicians were awesome!”

“Had routine heating service and A/C repair. The technician was professional and punctual. He completed the work in a timely manner and explained/repaired the A/C issue. ”

“The technician is not experienced at all.”

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“Always punctual, courteous, and skillful.  ”

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“They were courteous and professional.”

“Efficient understanding caring.”

“Work was extremely well done. We are very satisfied with the outcome.  ”

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“Contract with previous owner, very elderly couple who didn't understand what tech asked them, so he just didn't do any of the maintenance he should have. Quarter inch gaps where vent pipes should be tight on basement A/C unit; huge amount of A/C air leaking into basement. If tech sees an issue, he should fix it or at least stress why it needs to be fixed or ask to discuss it with their adult kids. We're hoping the heater works this fall as that was under their contract, too. This was reported to Henderson's c/s but they said we'd have to pay the large service charge for their tech to come out to assess what he's been overlooking for years. No faith in this company.”

“I have used other plumbing/heating/ac people in the past however I only use Henderson. They are definitely more expensive however they are worth it. They always answer their phone, are available for emergencies and are extremely clean and knowledgeable. They do not take short cuts and do the job right all the time. Hands down they are worth it compared to other small companies.  ”

“Outstanding service, on time, knowledgeable, friendly, reliable. Very short wait time for parts required for repair. Also use for ‘annual checkup’. Love their crew, cleanliness and responsiveness. ”

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“My Henderson technician was the best, knowledgeable, thorough and best of all HONEST! ”

“Always on time and thoroughly professional. Best service I've had in a long time. ”

“From the estimate to the completion of work and follow up, everything was polite and professional, including the office staff.”

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“Quality service, large service area. Excellent follow up after services have been completed.”

“They performed a service that I didn't authorize, and then tried to charge me $45 for it. That wasn't what I had requested over the phone and it required calls to the home office, etc.”

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“They've done a furnace and maintenance work since. I heard about them from a neighbor. I would give them an A. Everybody was good.”

“They did HVAC. A neighbor uses them so that's how I heard about them. I would give them an A. I've signed a two-year long contract with them.”

“They've done lots of different stuff on our house. The most recent thing they've probably done for me is a service call. They replaced our HVAC system. They've done some plumbing for us. They've done a lot of different things. I would give them an A+. The customer service is great. Their office is great. They're very responsive. They come out when we call them. They're very good.”

“They're prompt. They're efficient. Their pricing seems somewhat fair. I've worked with them several times and the guys are great. They're all very knowledgeable. They do several projects for me over time. The last thing was in my home and that was a HVAC tune-up type of service. I don't remember where I found them originally. I've been working with them for a while. They're an A.”

“They were very good. They did a good job and were personable. They had done plumbing and heating. I chose them because they were local. I had no complaints so they're an A.”

“I have only ever had really good experiences with them when I've called. When they send somebody out, it's a plumbing repair place and heating and air conditioning. The people they send are always very courteous and they have never failed to solve the problem right away. They installed an air conditioning system here and then they did relatively minor plumbing repairs. I don't remember how I found the company. They would be an A grade.”

“They were excellent. They had a prompt response. They stayed on top of everything and they did what they said they were going to do. They did a new water line. They were recommended to us by our heating oil company. An A grade is fine for them.”

“They did the job for me. They installed the air conditioner—that was the only time I ever used them. It was easy to make an appointment, and they did the job pretty quickly. I guess they're an A. It ended up not being that good of a price, but it was fine.”

“They're very dependable—if you need them in a hurry, they come right away. They do a very good job, too. I recently had them install a new heating system, and they have done plumbing for me, too. Their work has always been very good. I would give them an A.”

“They're punctual and clean. I just like everything about them. They do plumbing and air conditioning. At first, it was an as-needed service, and then we picked up a contract for our air conditioning. They also did the original installation on the air conditioning unit. They’re an A.”

“I thought they were really great. They were on time and courteous, and they found the problem and fixed it. They installed our heating and air conditioning, and I think they came back to fix a pipe. It was covered under warranty, so they honored that. I’d rate them as an A—they’re excellent.”

“They did a great job. They came out immediately, and I liked their attention to service. We had to replace the heating and air conditioning unit in our house, and they were very quick in accommodating that. Since then, they have done maintenance once. They deserve an A.”

“Wm. Henderson is reliable and on top of things; I have a service plan with them, and they call to make sure I get the different checkups for my HVAC system at the appropriate times. They've also done plumbing, and I had a good experience with that as well. They get an A rating.”

“The work is done very professionally, on time, and very reasonably. They had done HVAC maintenance work for me. I would say they're an A.”

“They had good service. The service tech was nice, and they were reasonably priced. They did my air conditioning maintenance. This was the first time that I had ever used them.”

“They were here when they said they were coming, they did their job, and it was fine. I had no problem at all. My air conditioner wasn't working, and he fixed it for me. I would say they're an A.”

“They're responsive. We’ve been through several different iterations of using them; they have done HVAC work as well as plumbing. We had good experiences with both of those. I’d give them an A for excellent.”

“They're thorough and then they had some representatives service really well. They had done plumbing. They've done some repairs as far as leaks like coming from my bathroom. They've also done our maintenance on our heating and cooling system. I would say they're a B. I just think that sometimes their services are really expensive. Price is the only issue for me. I would recommend the company to somebody else.”

“They are very responsive, and they come quickly. The work they did was plumbing, and recently, they worked on our air conditioner. The plumbing was done as an emergency call at night when we had a backup. They do air conditioner maintenance, and now we're going to have an installation soon. I would say they're an A grade.”

“Wm. Henderson has been great. Their workmen are always nice, they're there on time, and they put shoe covers on. They seem to be knowledgeable about problem solving, and they follow through. They've done plumbing, sewer digging, and a full-house dehumidifier, and they do my HVAC maintenance. I’d give them an A rating.”

“They're reliable, they treat our home with care, and they take care of the job. They have done all kinds of work, from plumbing to heating to remodeling bathrooms. I had a good experience with all of those services. We went with them because we were looking for someone who could service an old steam boiler, and they did that. They’re an A.”

“I think they have good customer service. They installed our air conditioning system for the whole house. They did the initial installation and annual maintenance, and they also did some sewer backup work, so we've used them for a couple of plumbing and heating jobs. It was a good experience with them every time. I would give them an A.”

“They're responsive, and they know what they're doing. They have done mainly heating, but this summer, I had some plumbing. I had a good experience with both of those services. I went with them because they were relatively local and they had good ratings. Not considering price, I would say they're an A. Their prices are a little high.”

“Wm. Henderson was very professional, and they did great work. They were trustworthy, and they were able to work with me. They put in the new air conditioning unit, and they have done stuff on our heating system. They're our go-to for all of our heating and cooling needs. They're excellent; we have no complaints.”

“They're the best. I like that they do the job and they're polite. They just did all the work for my air conditioning. They've been with me since 1985; nobody sticks with a company since 1985 unless they're very good and totally cool. We've had them take care of some stopped-up sinks, too. They're an A.”