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Thonus North Plumbing, Heating & Air Conditioning

Thonus North Plumbing, Heating & Air Conditioning, Inc. is a full-service plumbing, heating contractor in Harwich, MA. We service Harwich, Chatham, Brewster, Orleans, Dennis, Eastham, Yarmouth, Barnstable and Wellfleet. The owner of the company has over 20 years of experience as a plumbing contractor and is personally involved in every project, from the initial phone call to the last day on the job.

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508-430-1150

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Our Services

Pump Icon

Plumbing

Knowledgeable plumbing technicians in Harwich and the surrounding areas.

heater iCon

Heating

Our residential and commercial heating work includes everything from gas service, boiler service, equipment replacement, gas piping, oil line inspection and emergency services.

AC Condition

Air Conditioning

Repairing and replacing all makes and models of your air conditioning system.

8 Reasons Why Regular HVAC servicing
is crucial (and time and money saving too)

  • Efficiency: Over time, HVAC systems can accumulate dirt, dust, and debris, leading to reduced efficiency. Regular maintenance, including cleaning and tuning, ensures that the system operates at its optimum level, maximizing energy efficiency and lowering utility bills.
  • Extended Lifespan: Proper maintenance helps prevent premature wear and tear on HVAC components. Regular servicing can identify and address issues before they escalate, extending the lifespan of the equipment and delaying the need for costly replacements.
  • Reliability: Regular HVAC maintenance helps identify and address potential problems early on. This reduces the likelihood of unexpected breakdowns and ensures that your system operates reliably when you need it, especially during extreme weather conditions.
  • Improved Indoor Air Quality: HVAC systems play a vital role in maintaining indoor air quality. Regular servicing includes cleaning and replacing air filters, removing accumulated dust and allergens, which helps ensure the circulation of clean and healthy air within your living or working space.
  • Energy Savings: A well-maintained HVAC system operates more efficiently, consuming less energy to achieve the desired temperature. This results in lower energy bills and a reduced environmental impact.
  • Safety: Regular inspections and maintenance help identify and address potential safety concerns, such as gas leaks or faulty electrical components. This is particularly important for systems that involve combustion, such as furnaces.
  • Warranty Compliance: Some HVAC equipment warranties require regular maintenance as a condition for coverage. Failing to service your HVAC system according to the manufacturer's recommendations may void your warranty, leaving you responsible for repair or replacement costs.
  • Compliance with Regulations: In some regions, there are regulations and codes that mandate regular inspections and maintenance of HVAC systems, especially for commercial buildings. Staying compliant ensures the safety and well-being of occupants and avoids potential legal issues.

In summary, regular HVAC servicing is essential for maintaining efficiency, reliability, and safety, as well as prolonging the lifespan of the equipment and improving indoor air quality. It also helps save energy and ensures compliance with warranties and regulations.

About Us

As a plumbing, heating and HVAC contractor our services include all aspects plumbing, heating & HVAC. We repair or replace heating and air conditioning units, perform general maintenance of these units to ensure they work properly for years to come. As a master plumber, NATE & ARI certified mechanical contractor we understand the importance of resolving plumbing and HVAC issues in a timely manner. We work quickly & efficiently always keeping your work area clean as not to upset your daily routine.

Thonus North Plumbing is the most reliable service we have ever had. We had a leaking furnace problem between Christmas and New Years and Mike was able to come the next day and repair all. No one else would assist us so he remains invaluable. The BEST!

Valerie Lofland

Michael has been my "go to" guy since I purchased my home in Harwich. He's fair, honest, and shows up on time. He knows his stuff, and he often has great suggestions for me to maintain my home properly. He's great and his work is excellent.

Jaris Hanson

I've been using Thonus North for two years now and I highly recommend them--an easy five star rating.

John Pershing

I called Thonus with a non emergency request. Mike schedule some time and showed up on time. He fixed the problem and alerted me to some other preventative issues I need to address. Very pleased.

Clint Coolidge

Mike is fantastic. He performed maintenance on my gas boiler. Did a great job, arrived as expected and pleasant and helpful as always.

Margaret Herlihy

I've been using Thonus North for two years now and I highly recommend them--an easy five star rating.

John Pershing

Mike was able to get out on short notice and address an issue before our renters came in the next day.

Andrew Everett

B. La Scola: Mike is always helpful strait forward very knowledgeable about the equipment.

Bob Scolie

So glad to have found Michael. Contacted for this first time in Summer 2021 from a referral. He and a partner came and completed work quickly and were a pleasure to work with. Michael explained everything and made sure I didn't have any questions before he left. Contacted today for a more emergent issue which was quickly resolved. Both times I have contacted Michael, he has returned my call within an hour.

Meredyth Thomas

My air conditioning wasn't working on a very hot day; and I have health issues where I really needed the A/C to be functioning. I contacted the company who I have used for years to do my yearly maintenance and they told me it would be at least 2 weeks before they could come out. I contacted some of the "bigger" companies and they gave the same timeframe. I contacted Michael at Thonus North at around 4pm, let him know my urgency, and before 5pm a tech came out. He was not only very nice, but figured out what the issue was...though he didn't have the part. The next thing I know, Michael brought the part to the tech at my house and in a short period of time, my A/C was fixed! And their fee was very reasonable. Thonus North is now my go to for all things HVAC!

Pam Williams

Michael came out right on time and installed a mini split in our new sunroom. He’s very professional, honest and a hard worker. While he was here he checked the efficiency of our heating system, he made a few adjustments at no charge! Michael Grillo goes above and beyond, great guy! Highly recommend him.

Nancy ILL

We had two showers that needed repairs. On the day of our scheduled appointment Mike called to inform us he was running behind schedule due to an earlier job taking more time because of unforeseen problems. We appreciated his calling. Although he had a very long day he came and expeditiously repaired both our showers. He was very professional and knowledgeable. We will definitely rely on him for any future plumbing needs.
Thanks Mike !!!

Carolyn Fleming

I had a major collapse of my sink/dishwasher piping in the kitchen. I called Thonus and set up an appointment. They appeared on-time, assessed the problem, corrected the problem, and billed me what their estimate had been, not one penny more. Great service. Nice guys. Trustworthy. Reasonable prices. Of course I will use them again if need be.

Thomas Clarke

Mike is reliable, communicative and performs quality work. One of my go to vendors. Whether you need some basic plumbing/heating work or advice on something more advanced, he is easy to work with and very consultative. Thank you Mike for the great work you have done helping me maintain my home!

Doug C

My air conditioning wasn't working on a very hot day; and I have health issues where I really needed the A/C to be functioning. I contacted the company who I have used for years to do my yearly maintenance and they told me it would be at least 2 weeks before they could come out. I contacted some of the "bigger" companies and they gave the same timeframe. I contacted Michael at Thonus North at around 4pm, let him know my urgency, and before 5pm a tech came out. He was not only very nice, but figured out what the issue was...though he didn't have the part. The next thing I know, Michael brought the part to the tech at my house and in a short period of time, my A/C was fixed! And their fee was very reasonable. Thonus North is now my go to for all things HVAC!

You are the most conscientious and thorough plumber I have had the opportunity to work with.

Leslie, Chatham

5/31/2018

Len came out on a Saturday on a holiday weekend for the emergency call. His responsiveness was above and beyond. Unfortunately the part needed had to be ordered. He got great kudos from both my guests and I for the attempt. I've had Len do other projects HVAC and plumbing before but they were always "please finish by April". Description of work: Our water heater stopped working on Saturday with a house full of guests. The guests made this an emergency for me.

Katy, Chatham

05/30/2017

We purchased a fixer upper and called Thonus to fix a number of plumbing related issues. They showed up when they said they would, cleaned up and recommended ways to save money. They are on our speed dial for plumbing services and we would recommend them to anyone. Description of work: Updated kitchen and bathroom plumbing and fixtures.

Janice, Chatham

04/13/2017

Found our heater would not blow on the coldest night of the year (brrr...thank goodness for electric heaters and a fireplace). Called these guys and left a message. They called first thing in the morning and said they would be by that day...And a few hours later they had arrived and fixed the issue in 1/2 hr. Very fair price.

Christopher, South Dennis

01/10/2017

The drain was un-clogged promptly and efficiently. The water leak was found to be not the result of a plumbing issue but rather a defective (leaking) shower pan, so no work was completed on that score. However, Mr. Thonus was kind enough to recommend an excellent tile installer, and I have since hired him as well! I have also recommended Thonus to a landscaper friend, who hired him to install an irrigation system.

Kathleen, East Orleans

11/28/2016

Excellent ! I can't say enough about this company! He was prompt and professional. I've used him before and his quality service is always consistent. Definitely hire him again!

Linda, Harwich

11/08/2016

Great. His responsiveness went a long way in soothing some of my more persnickety guests. There have been a number of problems with the old place (most recently a failed septic system, and "no hot water" issues in two different buildings). Len has never failed to go the extra yard in order to resolve whatever plumbing problem the place has thrown at him. My guests have been impressed by his promptness and thoroughness. I've appreciated his patience in explaining options and recommendations.

Russell, Chatham

07/21/2016

One weak earlier another plumber replaced a faulty pressure valve that was leaking water in basement. He suggested a bad heater coil and promised an estimate on replacing the unit. I had contacted Thonus North thru Angie's but he could not make the emergency call in time. When the heater continued to malfunction, I re-contacted Len and he diagnosed the problem and helped me avoid a $1500+ replacement bill.

Frank, Brewster

05/22/2016

Len Thonus promptly replied to our initial call, asked questions based on photos we sent of old water heater, clearly explained proposed service, then offered options for dates of service when we decided to go ahead. His co-worker Kevin, friendly and professional, arrived exactly on time, removed the old heater and installed the new one within 2-3 hours, checked that everything was working properly, cleaned up the work area nicely and reviewed everything with me.

Tom, South Yarmouth

02/24/2016

He came out in blizzard conditions. Fixed leak under sink.

Debbie, East Dennis

02/08/2016

Work was completed quickly, professionally, and very reasonably priced. They fixed pump on my boiler, flushed system, rerouted baseboard when I had a power outage due to a flood and I lost one leg of baseboard because of freezing pipes. Great job! They have since done additional work and it has been very satisfactory every time. They have even talked me out of service that they felt I didn't need which saved me a lot of money. Very honest!

Bruce, East Harwich

01/13/2016

They were very responsive, prompt and professional, and nice. I think they may be a little pricier, but I'd rather get the job done right and pay only a little more. I've used his company twice. He replaced a faucet and fixed a part on my toilet. He also checked my furnace for me. Very little maintenance was needed. But at least I'm up to date now.

Linda, Harwich

05/05/2015

Len was wonderful. I called on a Sunday morning. He helped me stop the leak coming from water heater then came the next day and installed a new water heater.

Judy, Eastham

04/27/2015

On-time, accurate quote for the work, and very professional and through with his work. Will definitely use them again.

Tom, Harwichport

03/10/2015

He is very good and he is reliable. He is on time and does a quality work. He cleans up. He does all the good stuff. The price is reasonable.

David, Harwich

03/03/2014

You are the most conscientious and thorough plumber I have had the opportunity to work with.

Leslie, Chatham

5/31/2018

Len came out on a Saturday on a holiday weekend for the emergency call. His responsiveness was above and beyond. Unfortunately the part needed had to be ordered. He got great kudos from both my guests and I for the attempt. I've had Len do other projects HVAC and plumbing before but they were always "please finish by April". Description of work: Our water heater stopped working on Saturday with a house full of guests. The guests made this an emergency for me.

Katy, Chatham

05/30/2017

We purchased a fixer upper and called Thonus to fix a number of plumbing related issues. They showed up when they said they would, cleaned up and recommended ways to save money. They are on our speed dial for plumbing services and we would recommend them to anyone. Description of work: Updated kitchen and bathroom plumbing and fixtures.

Janice, Chatham

04/13/2017