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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 180 customer reviews

Customers say: The overall sentiment across these reviews is overwhelmingly positive, reflecting high levels of customer satisfaction and appreciation. Customers consistently express enthusiasm about the quality of service they received, with recurring praise for professionalism, expertise, and efficiency. A dominant theme throughout is the technical skill and knowledge demonstrated by the service team, with many reviewers highlighting how thoroughly problems were diagnosed and resolved. The interpersonal qualities of the technicians emerge as another strong positive trend, with customers frequently describing them as friendly, personable, pleasant, and respectful. Communication stands out as a particularly valued aspect, with reviewers appreciating clear explanations, patience in answering questions, and being kept informed throughout the service process. Timeliness and punctuality are consistently mentioned as strengths, alongside respect for customers' property and maintaining clean, orderly work practices. Many customers express strong loyalty and trust in the company, with several indicating they are repeat customers or plan to continue using the service. The tone is enthusiastic and grateful, with multiple reviewers offering strong recommendations and expressing genuine happiness with the results. Overall, these reviews paint a picture of a service provider that excels in both technical competence and customer care, creating consistently positive experiences that foster long-term customer relationships.

Job Locations and Reviews

Review
Excellent service, hard working individual, arrived on time
Kathleen - Merrimack, NH 03054
Jack D.
Jack D. Checked in
Replace Kohler shower cartridge under Kohler part warranty. Squealing noise from Lennox outdoor unit was just a loose panel that was vibrating. I tightened the four screws and it went away.
Windham, NH 03087
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AC PM.
Auburn, NH 03032
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Water test, replace 2 filters, and replace dryer vent.
Auburn, NH 03032
Replace flapper. Recommend considering replacement. We will email estimate.
Replace flapper. Recommend considering replacement. We will email estimate.
Jack D.
Jack D. Checked in
Replace flapper. Recommend considering replacement. We will email estimate.
Manchester, NH 03102
Jack D.
Jack D. Checked in
System Diagnosis: During our evaluation of your 2.5-ton system, our Service Specialist Qwentin discovered a heavy presence of refrigerant dye in the system. This indicates a previous contractor likely injected a leak-stop or dye product into the lines. We strongly suspect this thick substance has pooled and clogged the piston (the metering device/screen) at the indoor coil, severely restricting the flow of refrigerant and preventing your system from cooling properly. Proposed Scope of Work: To restore proper flow and operation to your system, we will perform a comprehensive line clearing and recharge process. Refrigerant Recovery: Safely and legally recover all existing, contaminated refrigerant from your system. Piston Cleaning: Open the refrigerant lines at the 2.5-ton indoor coil, remove the piston and screen, and thoroughly clean out any dye, sealant, or debris causing the blockage. Filter Drier Replacement: Remove the old liquid line filter drier and braze in a brand-new drier
Manchester, NH 03104
Review
Jack really took care of me and my home today. Not only did he repair a broken system but when I mentioned my AC wasn’t working correctly, he thought to bring a backup panel so when he saw that was the issue, he fixed it right then and there….no “next visit” needed! I could go on but let me just say how well taken care of I feel. Thanks to the whole team but especially Jack today!
Amy - Moultonborough, NH 03254
Jack D.
Jack D. Checked in
Replace zone bypass board under warranty. Deliver and add salt to softener. Replace steam generator float & fill valve + water & temp sensor. Test operation. Take water test.
Moultonborough, NH 03254
Jack D.
Jack D. Checked in
I am so sorry to hear about the stressful weekend with the system catching fire! Because the 25-year-old compressor suffered a catastrophic electrical failure, it released its refrigerant and caused what we call an "acid burnout" inside the copper pipes. Due to this severe damage and the age of the system, a safe repair is simply not possible. This option upgrades your replacement to a mid-tier, high-efficiency air conditioning system. This equipment operates much more quietly, provides far better summer dehumidification, and will lower your monthly utility bills compared to a standard unit. Even with the upgraded equipment, I have still engineered this quote to reuse as much of your existing, safe infrastructure as possible to help keep your overall costs down. Scope of Work 1. Equipment Removal & New Line Set Demolition: We will safely dismantle and remove your burned-out outdoor unit and the aging air handler up in the attic. Mandatory Line Set Replacement: Because the compress
Merrimack, NH 03054
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Jack D. Checked in
Repair 1/2" copper piping. We will come back to replace the bathtub drain and replace the toilet you will purchase.
Hudson, NH 03051
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Jack D. Checked in
Diagnosed Corroding fitting on tank. It needs a dialetric ripple- specifically system 2000 special dip tube for proper.operation.
Bedford, NH 03110
Review
Worked with Jack before. He is always professional & does what he has to do to remedy our problem. He’s a great guy & the company should be proud of him.
Steve - Nashua, NH 03064
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Replace flapper, handle, and stop valve.
Nashua, NH 03064
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Warranty damper replacement.
Nashua, NH 03064
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Replace toilet
Bedford, NH 03110
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Replace shower valve in Chris' unit.
Milford, NH 03055
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Serial Communication Error. Trouble shooting via the service instructions deemed a failed AFM and PCB. We have sent an email of the estimate to replace. I called Fujitsu and the unit is under warranty.
Barrington, NH 03825
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Jack D. Checked in
Sweat in 1/2" coupling.
Bedford, NH 03110
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Diagnose 2 systems not cooling. Unit 104 has cracked refrigerant liquid line that needs repairing. Unit 103 needs blower motor + motor mount replaced.
Manchester, NH 03103
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Replace faucet for basement sink. Replace braided supply hoses.
Merrimack, NH 03054
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Jack D. Checked in
GSMS HomeClub plumbing visit. Replace vacuum relief.
Merrimack, NH 03054
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Jack D. Checked in
Gsms warranty
Nashua, NH 03062
Review
A huge shout out to Jack! Jack is an asset to GSMS family. He was prompt, professional and very thorough with the maintenance of my HVAC system. A bonus is that he was easy to talk to and engaging with conversation about a variety of subjects.
Lorralyn - Londonderry, NH 03053
Review
Great job
Read - Merrimack, NH 03054
Jack D.
Jack D. Checked in
Replacement of existing 40-gallon electric water heater with a new heater. Since heater is installed in a finished space, a safety shut-off valve will be installed.
Merrimack, NH 03054
Jack D.
Jack D. Checked in
Need to order damper under warranty.
Nashua, NH 03064
Replace kitchen faucet.
Replace kitchen faucet.
Jack D.
Jack D. Checked in
Replace kitchen faucet.
Merrimack, NH 03054
Jack D.
Jack D. Checked in
GSMS HomeClub AC visit.
Hollis, NH 03049
Jack D.
Jack D. Checked in
AC maintenance and replace toilet flapper. Capacitor was wired incorrectly so I fixed that.
Londonderry, NH 03053
Blocked vent. Disassembled and cleaned obstruction. Tested operation multiple times. All set, thank you.
Blocked vent. Disassembled and cleaned obstruction. Tested operation multiple times. All set, thank you.
Jack D.
Jack D. Checked in
Blocked vent. Disassembled and cleaned obstruction. Tested operation multiple times. All set, thank you.
Pembroke, NH 03275
Review
We have been very pleased with GSMS services from replacing our central AC & furnace 2 years ago plus a few plumbing issues we have had repaired and regular maintenance services. Jack, Qwentin, Mark and the rest of the team have been very professional and friendly and do a great job the first time and always cleaned up after themselves. They definitely go above and beyond and we highly recommend GSMS and we do. Fair prices as well!
Pamela - Manchester, NH 03109
Review
Excellent, professional, friendly service
Ginger - Hollis, NH 03049
Review
Always willing to help and does an excellent job.
Darlene - Manchester, NH 03109
Review
Great job. Very courteous and friendly.
Aaron - Manchester, NH 03103
Review
Excellent service!
Barb - Merrimack, NH 03054
Review
GSMS is my go to and I have never been let down. Jack was here on time, was professional, courteous, friendly and completed my service quickly and efficiently. Always a great experience when GSMS comes around!
Jared - Hooksett, NH 03106
Review
excellent service, courteous and very fair price
R Carl - Concord, NH 03301
Review
Jack provided excellent service for the air conditioner.
Gary - Stratham, NH 03885
Review
Excellent
Mike - Hampton, NH 03842
Review
Jack was on time and courteous. Addressed the issue
Sandra - Bedford, NH 03110
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