If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
43 years serving Fairfield County CT and Westchester County NY. Family owned and operated. We are passionate about educating our clients to make the best decision for their home comfort needs.
Overview
Hired 1 time
Serves Greenwich, CT
Background checked
8 employees
43 years in business
Business hours
Sun12:00 am - 11:59 pmMon12:00 am - 11:59 pm
Payment methods
This pro accepts payments via Apple Pay, Cash, Check, Credit card, and Zelle.
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Nick L.
May 6, 2026
•
From Google
Outstanding service. Nick and team cam out to walk us through our house and quickly resolved a few issues we were having with our water heater. Very knowledgeable and responsive. Will be using for all our plumbing needs.
First String Plumbing, Heating & Cooling's reply
Hi Nick - Thanks for taking the time to leave us a positive review. We hold our technicians to a high standard of service. I speak with my team daily about integrity, sharing knowledge, and being passionate about serving community. We look forward to working with you in the future!
Lionnet H.
Dec 15, 2025
•
From Google
We had an excellent experience working with First String and Henry Fischer during the construction of our new home with our builder Exclusive Homes. From the initial planning stages through final installation, their work was consistently professional, detail-oriented, and well coordinated with our builder and other trades.Communication was clear and timely, any questions or adjustments were handled quickly, and the quality of workmanship was outstanding. Everything was installed cleanly, tested thoroughly, and completed on schedule. Its clear they take pride in their work and understand the demands of new construction projects.We truly appreciated their reliability, expertise, and collaborative approach throughout the build. We would confidently recommend First String to anyone building a new home or looking for a skilled, trustworthy plumber.
First String Plumbing, Heating & Cooling's reply
Hi Julie - Thanks for taking the time to leave us a 5 star review so future clients can book our services with confidence. Our goal has and always will be to exceed customer expectations. Looking forward to working with you in the future!
Doug B.
May 6, 2026
•
From Google
Nick, John and team did a fantastic job installing an awesome Nevian tankless water heater. Unit works great. Excellent work and service!
First String Plumbing, Heating & Cooling's reply
Hi Doug - Thank you for trusting us to upgrade your traditional water heater to a tankless water heater. When you called at 7:45 pm with a busted water heater and 1" of water flooding your basement mechanical room I had to move quick. We take pride in our work and serving community. Looking forward to servicing your steam boiler and new tankless water heater next spring!
Yoni G.
Dec 9, 2025
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From Google
Great and friendly service. Helped work out some complicated connections and trouble shoot various appliances. Highly recommend. They did my firepit, my pizza oven, outdoor kitchen, and ran extra gas lines
First String Plumbing, Heating & Cooling's reply
Hi Yoni - Thanks for taking the time to leave us a 5 star review so future clients feel confident when scheduling a service, maintenance, or install for their plumbing, heating, and cooling services. Your fire pit, pizza oven, and outdoor kitchen will be a hit when entertaining. Looking forward to working with you in the future!
Halyna P.
Aug 12, 2026
•
From Google
John and Wallace came by and flushed my water heater while also installing a new shuttle valve and expansion tank. Work was very clean and professional, very happy and will be working with first thing again in the future.
First String Plumbing, Heating & Cooling's reply
Hi Halyna - Thank you for taking the time to leave a positive review. John and Wallace are passionate about helping our clients protect their home. Installing an expansion tank and upgrading your gate valves to ball valves for safety is the right way to protect your home. We look forward to working with you again.
Credentials
Background Check
Nicholas Mogg Mogg
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
We present flat upfront pricing prior to starting any project. Our goal is transparency. You will never receive a surprise bill.
What is your typical process for working with a new customer?
Our typical process is reaching out to understand the problem, assigning the right tech based on skills, diagnosing the problem, presenting upfront pricing, and fixing the problem.
What education and/or training do you have that relates to your work?
Our technicians participate in training classes and work under a master licenses technician for quality control and accountability.
