Your Trusted Plumbing & HVAC Experts Across Southern NH

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    My family and I moved into a 20 year old house and we’re having issues installing smart thermostats with our new HVAC system. Don offered to help and came back three separate times to help us figure it out. Him and his team are extremely attentive, persistent and clear with communication. There are very few who offer service like Colonial Plumbing. Would recommend, and we will continue to bring him business.


    Dominic B.

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  • ⭐⭐⭐⭐⭐

    Great work, great service, prompt and efficient. We've been with this company  for years and they are the best


    Dottie W.

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  • ⭐⭐⭐⭐⭐

    Don is very personable and does great work.  No detail was overlooked.  I'm very pleased with the work they did.  Would highly recommend them.  In fact I'm hiring them for another home project very soon.


    Donald H.

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  • ⭐⭐⭐⭐⭐

    Amazing work done at a very competitive price. Even fixed a few other things we didn’t know about at no extra cost- very concerned with making sure everything is done right!


    Scott M.

  • ⭐⭐⭐⭐⭐

    Great experience, reasonable prices and super nice employees.


    Kate C.

100% satisfaction today… Or You Don’t Pay!

Discover top-notch heating, plumbing, and air conditioning services with Colonial Plumbing & Heating. Serving Southern New Hampshire, we pride ourselves on delivering reliable and efficient solutions tailored to your needs. Whether you're a homeowner or a small business, our expert team is here to ensure your systems run smoothly year-round.

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Exceptional Service for Residential and Business Needs

At Colonial Plumbing & Heating, we serve residential and small business clients. Our comprehensive range of services includes installation, maintenance, and repairs for heating, plumbing, and air conditioning systems. We understand the unique requirements of each setting and strive to provide effective and cost-efficient solutions. Our skilled technicians are dedicated to addressing your concerns promptly and professionally, ensuring minimal disruption to your daily routine.

Our Satisfaction Guarantee: We Stand Behind Our Work

We are committed to delivering high-quality service that meets your expectations. That's why we offer a satisfaction guarantee on all our work. If you're not completely satisfied with our services, you don't pay. It's that simple. We aim to build lasting relationships with our clients through trust and exceptional performance. Reach out to us today and experience the difference between Colonial Plumbing & Heating.

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Serving Communities in NH:

We proudly serve residents in Londonderry, NH and surrounding areas. Your satisfaction is our priority.

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