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Jack Downing

Jack Downing

Senior Service Specialist

Rating

Reviews

LICENSES: GAS SERVICE

Having grown up in the family business, Jack officially entered the trades and joined the GSMS team seven years ago because it simply felt like the perfect fit. Guided by the Golden Rule, Jack appreciates the genuine kindness of both his colleagues and his clients, and he wants every customer to know that the team will always try to do their absolute best on every job. A natural learner who loves to master new skills, Jack stays incredibly active outside of work. You can usually find him renovating his first house, woodworking, playing the guitar and drums, or experimenting with new recipes on the grill and smoker. Depending on the season, he also loves skiing or cycling. Above all, he cherishes the time he spends with his fiancé, Hope, and their Australian Shepherd, Norman. Jack is also a proud member of the Pointer Fish & Game Club.

Name: Jack Downing

Recent Jobs and Reviews

Rated 5.0 out of 5 stars based on 163 customer reviews

Customers say: The recent reviews exhibit a predominantly positive sentiment, with recurring themes of satisfaction, professionalism, and expertise. Customers express gratitude, recommend the company, and acknowledge the quality of the work performed. Positive reviews frequently mention friendly and knowledgeable technicians, timely responses, and efficient service. Negative reviews are minimal and do not represent a clear, recurring trend. Overall, the reviews suggest a positive experience with the company, with many customers expressing satisfaction with their HVAC and plumbing needs.

Job Locations and Reviews

Jack D.
Jack D. Checked in
Mitsubishi system not working due to two zones being in opposite function modes.
Greenland, NH 03840
Jack D.
Jack D. Checked in
GSMS HOMECLUB AC maintenance.
Amherst, NH 03031
Jack D.
Jack D. Checked in
Fujitsu 97 error. Outdoor fan motor has play in shaft. I reccomend replacing to prevent error from happening again.
Candia, NH 03034
Jack D.
Jack D. Checked in
Add UV dye to ductless system.
Nashua, NH 03062
Jack D.
Jack D. Checked in
Shorted rollout switch on steam boiler. Replaced switch & tested operation of system. Thank you.
Manchester, NH 03102
Review
Jack was so knowledgeable and kind. Found the problem right awa
Cecile - Nashua, NH 03062
Jack D.
Jack D. Checked in
Add 3lbs of refrigerant to ductless system.
Nashua, NH 03062
Jack D.
Jack D. Checked in
Add refrigerant to systwm not cooling. Gina will reach out to schedule system replacement estimate with Zak.
Londonderry, NH 03053
Review
Jack arrived promptly @ 8:30a, inspected and troubleshooted to find the problem as to why the AC was not working properly and repaired it promptly. Out the door within 3 hours and AC is working properly. Thanks so much!
Peggy - Manchester, NH 03103
Jack D.
Jack D. Checked in
Came out for no cooling. I found the rooftop condenser disconnect in the off position. I checked system pressures after restoring power. There was no refrigerant in the system. I pressurized with nitrogen and then found the liquid line to have a leak near the roof penetration. I repaired the leak and replaced the filter drier. Pressure test with nitrogen. Pull vacuum. Refill system with refrigerant and check operating pressures. All set thank you.
Manchester, NH 03103
Review
Jack replaced the hot water heater in our condo. He was prompt, very professional, and was very knowledgeable. He was mindful and took care regarding the items stored in the basement. He explained what he did and ensured all questions were answered before he left. GSMS will always service our homes. Thank you Jack and everyone on the GSMS team!
Deb - Hampton, NH 03842
Jack D.
Jack D. Checked in
Ductless condensate pump was gunked up. This caused the float switch to stick. I removed and cleaned. I tested operation and added a special cleaner to the system. We will make note to continue chemical treatment on all ductless units in the facility, moving forward.
Londonderry, NH 03053
Jack D.
Jack D. Checked in
GSMS HOMECLUB
Merrimack, NH 03054
Jack D.
Jack D. Checked in
GSMS HOMECLUB PLUMBING AND COOLING VISIT.
Merrimack, NH 03054
Finish installation. Check system charge.
Finish installation. Check system charge.
Jack D.
Jack D. Checked in
Finish installation. Check system charge.
Bedford, NH 03110
Jack D.
Jack D. Checked in
Replace pressure gauge on booster pump. Recalibrate booster pump settings. Test operation.
Concord, NH 03301
Review
They are always great
Steve - Candia, NH 03034
Jack D.
Jack D. Checked in
GSMS HOMECLUB MINISPLIT COOLING MAINTENANCE. I added refrigerant to system.
Candia, NH 03034
Jack D.
Jack D. Checked in
GSMS PLUMBING VISIT
Epping, NH 03042
Jack D.
Jack D. Checked in
Filter + belt on Carrier RTU. Filters on other 3 RTU's. Wash all evap + condenser coils for all 4 RTU's.
Manchester, NH 03102
Jack D.
Jack D. Checked in
Replace Belts + grease bearings on all 3 exhaust fans.
Manchester, NH 03102
Replace Filters + belts for all 3 make up air units. I cleaned the old insulation off of the covers. One of the motors needs to be replaced. The restaurant owner mentioned that they could hear the failing motor in the kitchen.
Replace Filters + belts for all 3 make up air units. I cleaned the old insulation off of the covers. One of the motors needs to be replaced. The restaurant owner mentioned that they could hear the failing motor in the kitchen.
Jack D.
Jack D. Checked in
Replace Filters + belts for all 3 make up air units. I cleaned the old insulation off of the covers. One of the motors needs to be replaced. The restaurant owner mentioned that they could hear the failing motor in the kitchen.
Manchester, NH 03102
Jack D.
Jack D. Checked in
Replace RTU Belt + Filters. Wash Evap + Condenser coils. Replace broken condensate trap. Check refrigant operation for both cooling circuits.
Manchester, NH 03102
Review
Arrived in a timely manner with a cheerful attitude. He went straight to work and completed the job quickly/efficiently. Thank you Jack.
Kathleen - Merrimack, NH 03054
Jack D.
Jack D. Checked in
Replace boiler drain cap
Merrimack, NH 03054
Jack D.
Jack D. Checked in
Found bad condensing motor.Motor under warranty.
Bedford, NH 03110
Jack D.
Jack D. Checked in
Warranty repair. Fix flair connection at outdoor unit. Nitrogen leak test before evacuating system and recharging. Thank you.
Pembroke, NH 03275
Jack D.
Jack D. Checked in
Replace existing failed water heater with a new direct replacement model. Will include bringing up to code with a new expansion tank bracket.
Hampton, NH 03842
Jack D.
Jack D. Checked in
GSMS HOMECLUB AC VISIT.
Manchester, NH 03104
Jack D.
Jack D. Checked in
Go over auto changeover on thermostat. Would like to see other options for thermostat. We will send over an estimate.
Manchester, NH 03102
Review
Very good.
Phil - Hooksett, NH 03106
Review
I’ve used GSMS for years now. They have always provided top notch services and workmanship. Shout out to Jack specifically for today help 🙌🏻
Sam - Concord, NH 03301
Review
Jack is a nice guy. Explains things well. Respectful of my home. Thorough
Georgia - Epping, NH 03042
Review
Respectful and knows what he is talking about. Even dealt with Stanley in a way they are always welcome back. If i could give more than 5 stars i would.
Holly - Northwood, NH 03261
Review
Excellent and very prompt.. Thank you
Mike - Hampton, NH 03842
Review
Great service
Mark - Barrington, NH 03825
Review
Jack did an excellent job cleaning and servicing our mini-split. He is amiable, efficient, and professional. It was a great experience!!!
Kathleen - Nashua, NH 03062
Review
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Zsolt - Nashua, NH 03062
Review
The service was really good. He did great work.
Ann - Derry, NH 03038
Review
Excellent service.
Kathleen - Merrimack, NH 03054
Trusted Quality & Service