Calnan’s Energy Systems, Inc.: Insulation contractor in Waltham, MA

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• Ann Bauer

  • 5,0
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  “I absolutely want to recommend Rob Calnan – I got his name through a neighbor, and I’m so grateful to her! I met him about a month ago, and he recently did some insulation work in my basement. Honestly, he’s fantastic. He’s a true perfectionist and kept me completely in the loop throughout the whole process, so I never felt left in the dark. Beyond that, he’s just a really great guy – I’m definitely going to keep in touch!” report abuse

• Sarah Lawrence

  • 5,0
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  “We absolutely loved working with Calnan’s Energy Systems! It was such a smooth and stress-free experience. We contacted a couple of other insulation companies, but Calnan’s stood out. One never responded, and the other was difficult to get a clear quote from. Rob Calnan was fantastic – he came out quickly, took all the measurements, explained everything clearly, and kept us constantly updated on the building permit and the project timeline, which was particularly helpful given the rainy summer weather. The whole team – Rob and his sons – were incredibly professional, friendly, and clearly knew what they were doing. The job itself was completed in just two days, and they left the area spotless. We live on a busy road, and we’ve already noticed a difference in the noise levels, which is great! We’re really excited to see how much money we’ll save on our energy bills this winter. We’d definitely recommend Calnan’s – and we’ll be sure to call Rob for our attic insulation next time!” report abuse

• Erin and Jason

  • 5,0
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  “We were so pleased with Rob’s work replacing our front door, which had suffered from water damage. While he might not be the cheapest option, his dedication to doing the job right from the start was exactly what we were looking for. He and his sons were incredibly thorough and professional – they explained everything they were doing and the finished product looks fantastic and works perfectly. We’ll absolutely be using them again for any future projects!” report abuse

• Laura Meyer

  • 5,0
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  “We were so pleased with the work Rob Calnan and his team did on our roof. From the very beginning, Rob was incredibly responsive and accommodating, fitting us in even on short notice. He kept us updated every step of the way, calling us daily with progress reports and outlining the next day’s work. It was clear he takes immense pride in his family business, and his children were all part of the team – you could really see that dedication. Rob was incredibly knowledgeable about insulation, patiently explaining everything to us and sharing his expertise, which was really appreciated. We especially liked how quickly he responded when we contacted him about the solar panel installation, ensuring everything was coordinated smoothly. The insulation has made a huge difference in how comfortable our house feels, and we wholeheartedly recommend Rob and his team.” report abuse

• JOEL FEINBERG

  • 5,0
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  “We’ve now had Rob Calnan and his team install storm windows and do some weatherization work for us twice – once for our historic 1900 house and again recently. We couldn’t be happier with the quality of his work and, honestly, we’ve been really impressed with him. He’s incredibly honest and professional, but what really stood out was how congenial and communicative he is. It’s such a relief to work with someone who keeps you informed, especially these days when timelines can shift, and his open communication has been a huge benefit.” report abuse

• connie burgess

  • 5,0
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  “I wholeheartedly recommend Calnan’s – they were fantastic from start to finish. Rob was incredibly responsive, answering my calls and emails promptly throughout the whole process. The installation of our nine new windows was completely seamless; Rob and his team took care of absolutely everything, going above and beyond to ensure a perfect job. The staff were polite, professional, and kept the area spotless. It was clear they’re a really well-run, highly professional company, and we were particularly impressed with their communication and the quality of the final result.” report abuse

• Marcia Green

  • 5,0
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  Robert and his team did an absolutely fantastic job renovating my house! They replaced all the windows and added insulation in the attic, and the difference in my energy bills has been incredible – they’ve practically halved! More recently, they tackled a really worn-out door, and the quality of their work is outstanding. What really stood out was how professional and friendly they were – they communicated clearly, left everything spotless, and always had a smile. I’ll definitely be hiring them again for my next project. report abuse

• Beth Golovchenko

  • 5,0
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  Rob and his helper did an absolutely fantastic job replacing my back door. They were professional, completed the work exactly as promised, were on time, and the quality of their work was truly excellent – even better than the original door! Rob was also incredibly helpful, offering some really good suggestions for future improvements to my home. report abuse

• william dylewsky

  • 5,0
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  Rob and his team did a fantastic job insulating my attic. They were incredibly professional and really took the time to do the job right. Everything was completed on schedule and exactly as we discussed – I’d definitely recommend them and would absolutely hire them again. report abuse

• Chen L

  • 5,0
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  Rob did a fantastic job replacing our windows – really professional and he paid attention to all the little details. We were so impressed with his courteous and genuine service, and we’d definitely recommend him to anyone needing window work. report abuse