Since our founding in 1980, we've continuously improved and expanded our services, technical skills and resources to better serve our heating, air conditioning and plumbing customers in the greater Henniker, Concord and New London areas. Utilizing the latest technologies combined with long experience, AGS delivers complete design, installation and ongoing service for both residential and light commercial installations. Call us first when you need it done right, on time and on budget. When it comes to the right heating system for your home, there are many choices.
Services
Heating System Types
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When it comes to the right heating system for your home, there are many choices. With fuel costs at very high levels, making the right choice has become more important than ever. While the expense of running your heating system is of increasing importance, it's only half of the equation. Selecting the type of heating that's right for your home and family can be complex.
Water Heater Types
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How much hot water is enough? Hot water heating is the second largest energy expense in most homes. On average, a typical family of four will use 2,000 gallons of hot water per month. An amount that can really send a flood of dollars out of your wallet if you're depending on an outdated or less efficient water heater.
On-demand Water Heaters
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An endless supply of hot water, whenever and wherever you need it throughout your home. It's not a wish, but reality with Tankless Water Heaters that revolutionize comfort, energy efficiency and convenience. Imagine never having to think about your hot water needs again. This innovative, money saving technology provides an endless supply of hot water whenever and wherever it's needed - even for simultaneous uses throughout your home.
Indoor Air Quality
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Most of us rarely think about the quality of the air in our homes though we do notice the effect that it has on our families. On average, people spend about 90 percent of their time indoors. Sixty-five percent of that is spent at home. To make matters worse, those who are most susceptible to indoor air pollution are the ones who are home the most: children, pregnant women, the elderly, and those with chronic illnesses.
Reviews (14)
Robert Sauvageau
Jun 04, 2022
Beverly Davis
Dec 26, 2021
John Goreham
Nov 19, 2021
We own a cabin in Antrim. AGS has been instrumental in keeping that cabin working. They have helped in is many way related to seasonal opening and closing, offered great advice, and helped us with systems aside from HVAC. The office answers the phone (a miracle today), and the Techs, usually Jason, are all highly skilled, and very upbeat. When I told Jason about a looming issue by cell phone, he said, "I'm on my way and I'm gonna make it work. Don't worry." Over many visits AGS has ALWAYS been on time, and the tech calls when he is on the way. Without exception, the price is always fair and well worth every penny.
Andrew Swab
Apr 15, 2021
Responsive and thorough for plumbing job for extra laundry/bathroom. Excellent customer service for a plumbing job, picked up phone, called to confirm appointment, called 15 minutes out that morning. Incredibly responsive, which is a hard thing to do when busy, but they were. They knew what to do and got to work! Would recommend for plumbing services!
Bill R.
Mar 06, 2021
Nathan Kendrick
Jan 06, 2020
Steve P.
Apr 12, 2019
Brian Begley
Mar 11, 2019
Thinking of having AGS do work in your home? Let me review the plumbing/HVAC work they did in our new house in 2005: 1. They installed two older Lennox A/C systems that used R-22, knowing it would be banned within the next few years. The Lennox rep thought they were older systems they had lying around their warehouse. Owner Ken Jaeger told me not to worry, people in NH don't use A/C very often anyway; 2.
They installed a small, inferior well tank and incorrect well pump that needed to be replaced; 3. They installed a Rinnai tankless water heater that was replaced this month that the installer said was older than the time it was originally installed, another warehouse lay-around; 4. They placed the Rinnai at the furthest point away from where the water was needed.
Nothing like waiting 10 minutes to take a shower; 5. They incorrectly installed outdoor sillcocks, one which was angled into the basement that later froze and burst, another where they compromised the integrity of a parallam by notching it; 6. They placed the boiler on wood rather than a raised concrete or block pad; 7. They vented the boiler exhaust and intake so close to each other that the PVC pipe started to melt.
The foam they used also started to burn. Three contractors told us we were very lucky a major fire didn't break out in the cavity. All this was done to maximize their profit margin and/or because they didn't know what they were doing. You had better watch them closely, ask lots of questions, and check out the equipment they sell you - that's if you want to take a chance.
They installed a small, inferior well tank and incorrect well pump that needed to be replaced; 3. They installed a Rinnai tankless water heater that was replaced this month that the installer said was older than the time it was originally installed, another warehouse lay-around; 4. They placed the Rinnai at the furthest point away from where the water was needed.
Nothing like waiting 10 minutes to take a shower; 5. They incorrectly installed outdoor sillcocks, one which was angled into the basement that later froze and burst, another where they compromised the integrity of a parallam by notching it; 6. They placed the boiler on wood rather than a raised concrete or block pad; 7. They vented the boiler exhaust and intake so close to each other that the PVC pipe started to melt.
The foam they used also started to burn. Three contractors told us we were very lucky a major fire didn't break out in the cavity. All this was done to maximize their profit margin and/or because they didn't know what they were doing. You had better watch them closely, ask lots of questions, and check out the equipment they sell you - that's if you want to take a chance.
Bruce Healey
May 05, 2018
My wife & I want to extend our sincere appreciation for the exemplary work done by Craig & Ben during installation of our replacement gas boiler (Weil McLain GV90+4). Their attention to detail in installation, helpful manner and willingness to work far beyond what was probably anticipated, with no comment or complaint (to us) was amazing. They both represent the best in your business - professional services. You can be assured, given the question or opportunity, we won't hesitate to recommend AGS Services. Bruce & Judy Healey, Newbury, NH
Jesse Lazar
Nov 01, 2017
The temperatures outside were well below zero and the heat exchanger in my tankless hot water heater froze and ruptured (this was on a Sunday). The model I had was a Bosch GWH 635 ES, and aside from the rather dramatic failure I had always found this model to be terrible. it was maintenance prone, difficult to service and the activation threshold was high (so I had to take scalding showers).
I contacted AGS Services and was able to get them to come in and replace my unit with a Rinnai RL75 in just a couple days. I was especially grateful for the quick service since (according to the news) most plumbers have been flat out with no heat calls and ruptured pipes due to the extremely cold temperatures. Furthermore the price they gave me was fair, I think it was the same price I'd have paid to do the work as a scheduled job (not emergency). The installation looks good and I'd highly recommend AGS Services.
I contacted AGS Services and was able to get them to come in and replace my unit with a Rinnai RL75 in just a couple days. I was especially grateful for the quick service since (according to the news) most plumbers have been flat out with no heat calls and ruptured pipes due to the extremely cold temperatures. Furthermore the price they gave me was fair, I think it was the same price I'd have paid to do the work as a scheduled job (not emergency). The installation looks good and I'd highly recommend AGS Services.
Warren M.
Aug 16, 2016
We recently had AGS install a Mitsubishi Split air conditioner in our master bedroom and couldn't possibly be more pleased. The unit is functioning far beyond our expectations. My wife requires a really cold bedroom (60 degrees for sleeping) and she is elated over it. Besides it working so well is it's quietness. Our old air conditioner never cooled our room properly and was unbelievably noisy. It's hard to tell our new unit is on - even when the fan is set on high. It's so nice to be able to hear our TV while in bed.
The AGS installers - Jay & Bill were fantastic! Very professional, accommodating and did a flawless install. We had previously used AGS to install a new furnace and do some plumbing and all that work was excellent. In a world where service is too often poorly provided and not done on time we infrequently make recommendations. We - however - are most pleased to highly recommend AGS. They always came when promised and always provided exceptional results. Warren & Bonnie
The AGS installers - Jay & Bill were fantastic! Very professional, accommodating and did a flawless install. We had previously used AGS to install a new furnace and do some plumbing and all that work was excellent. In a world where service is too often poorly provided and not done on time we infrequently make recommendations. We - however - are most pleased to highly recommend AGS. They always came when promised and always provided exceptional results. Warren & Bonnie
Andre Chaput
Nov 03, 2015
Teri Y.
Feb 27, 2015
Having a fairly new propane heat/ a/c unit in my house I had come home during the Thanksgiving storm to no power then once the generator started.no heat. Had the company out that installed the system to fix it to begin with and the propane company out to fix the issue that they needed to deal with. A couple weeks ago. no heat again. Called the propane company and they recommended AGS as they were many miles closer then the installers of the system. Jason came to the house and was very professional, found out what was going on and explained it all to me in a very easy to understand way. ( Also reassuring my constant worry about propane blowing my house up.) A week later no heat again Called AGS mid evening and Jason came out again. different issue this time and he got the heat going again no complaints of being late evening which I'm sure cut into his family time.
Again explaining what he found in terms that I could easily understand. He was very happy to help and also was going to actually go above and beyond and call the manufacturer of the system as to find out why I am having so many issues with a 5 year old very well maintained system. This company has gone above and beyond for me and I very very much appreciate it! I highly highly recommend AGS and Jason too!
Again explaining what he found in terms that I could easily understand. He was very happy to help and also was going to actually go above and beyond and call the manufacturer of the system as to find out why I am having so many issues with a 5 year old very well maintained system. This company has gone above and beyond for me and I very very much appreciate it! I highly highly recommend AGS and Jason too!
Mike W.
Jun 27, 2012
We had an excellent experience with AGS Services in the recent installation of a central air conditioning system in an older ranch-style house. Ken Jaeger, the company president, prepared a detailed design for the duct work and compressor, which turned out to be the lowest cost proposal we received. Even so, the materials and equipment AGS installed seem to be industrial quality, but aesthetically pleasing.
The AC vents in our ceilings look great. The AGS crew (the guys who did all the cutting and fitting in a very hot attic) were very skilled and meticulously clean. They were people we enjoyed having in our house for the week that the project took. Ken and his crew showed adaptability when they successfully installed, at our request, their first Nest Learning Thermostat, in lieu of the standard Honeywell product. Overall, a very impressive performance, completed just in time for the summer heat. Highly recommended.
The AC vents in our ceilings look great. The AGS crew (the guys who did all the cutting and fitting in a very hot attic) were very skilled and meticulously clean. They were people we enjoyed having in our house for the week that the project took. Ken and his crew showed adaptability when they successfully installed, at our request, their first Nest Learning Thermostat, in lieu of the standard Honeywell product. Overall, a very impressive performance, completed just in time for the summer heat. Highly recommended.
