Calnan's Energy Systems Inc.

Insulation, Windows, Doors,

About us

** Angie's List Super Service award winner in Insulation for 2008,2009,2010,2011,2013,2014,2015,2016,2017,2018,2019,2020,2021 and 2022**Calnan's Energy Systems Inc. has been in business for 40 continuous years and has more than 10,000 completed projects. Specializing in Energy Saving Insulation, Window and Door Installations! We have evolved from a multiple crew to a one crew company. This reduction in size has allowed us to deliver the high level of service our customers have come to expect. Direct supervision by the owner on each and every project, as well as family members involved can eliminate the concern of "Who will be working in my house?" Cost is determined by the job and all estimating is performed by the owner. No travel charges. We are proudly not a Mass Save contractor.

Business highlights

44 years of trusted experience
Family Owned & Operated
Eco Friendly

Services we offer

Insulation. Energy Efficiency Auditing. Windows. Doors & Bulkhead installs - Proudly not a Mass Save contractor

Services we don't offer

window and door repairs, Interior Doors

Amenities

Free Estimates
Yes
Warranties
Yes


Accepted payment methods

Check


Photos of past projects

Reviews

4.9175 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
93%
4
2%
3
1%
2
1%
1
3%


Rating CategoryRating out of 5
quality
5.0
value
4.7
professionalism
5.0
responsiveness
4.9
punctuality
5.0

Filter reviews by category

Showing 151-175 of 175 reviews

Adam Mouneimneh
09/2023
5.0
Google Review
Rob and his crew were amazing in every possible way. They took the time to understand what I was trying to accomplish beyond replacing my windows and doors, and the final product shows. The work they did was impeccable, and they were very thoughtful, considerate and professional throughout. I can't say enough good things about them and the work they do. I look forward to working with them again in the future, and I would recommend hiring Rob and his crew without reservation.
Rating CategoryRating out of 5
Yes, I recommend this pro

Sarah Lawrence
08/2023
5.0
Google Review
Absolutely HANDS DOWN - we had THE best experience with Calnan's Energy Systems! I'd reached out to two other insulation companies to get quotes to have the walls of our 1940's Cape insulated -- one company never got back to me, and the other came out to measure quickly but I had to chase down their prohibitively-high quote call after call, for a couple weeks. Rob Calnan came out promptly, took the measurements and explained the process and the materials used. He kept in touch, keeping us updated on the status of the building permit, when our work would start (no small feat during this mostly-rainy summer!), and was here as the insulation was going in. Rob and his sons were very professional, personable and knew their job! Trust, on-time, reliable, professional, and friendly are all words that I'd use to describe the entire crew at Calnan's Energy Systems. Our project took only two days, and at the end you couldn't find a single paint chip on the ground, nor any disruption at all. We live on a moderately-busy road, and we can tell in the noise level, that the insulation is already having a positive impact. We can't wait to see how much energy we can save this winter during the cold weather! I would not hesitate to call Rob (and only Rob) to insulate our attic next!
Rating CategoryRating out of 5
Yes, I recommend this pro

Miriam R
04/2023
5.0
Google Review
Rob Calnan has replaced 2/3rds of the windows in our house, and I only wish I’d known about him when I had the first third done. He’s replaced doors, trim, and siding as well. His work is always tidy and it’s nearly impossible to tell that something was replaced. He does a great job on our quirky older house. We’ve had him come back for multiple projects because he’s such a joy to work with. I picked Rob because he sounded like a man who knew doors six ways to Sunday, and he did not disappoint. Rob shows up when he says he will, and communicates if he won’t be able to come. He’s on top of paperwork and follows up with me if I don’t follow up with him. He’ll add on extra little carpentry jobs for us, and has given me good advice about things outside his scope. He’ll come for relatively small jobs. He does not ask me if I need to double-check with my husband. The closest thing I have to a complaint is that he often gives me very short notice for when he’ll be able to come, but I suspect that if I asked for more lead time he would be able to accommodate.
Rating CategoryRating out of 5
Yes, I recommend this pro

Connor McCullough
03/2023
5.0
Google Review
Rob came highly recommended by a reputable roofing contractor that praised his attention to detail, trustworthiness and professional approach to business. I reached out for a quote on insulation work and he came out very quickly thereafter to walk through my house with me. After knocking out the first couple things on my insulation to-do list (replacement windows, weatherstripping door), I can confirm that his work is fantastic and he's incredibly reliable. Rob treated my house like his own and did a great job. If you're looking for a contractor that you can trust, Rob is your guy!
Rating CategoryRating out of 5
Yes, I recommend this pro

Mark Miller
02/2023
5.0
Google Review
After a poor experience with Revise energy, I reached out to Calnan in the hopes of having quality work performed. They exceeded my expectations. R60 cellulose for the attic with R60 foam board for the verticals. The house is SO much more comfortable now. They also put in a cat walk in the attic so I can reach key parts of the attic easily. The workmanship is just top notch, as are the materials, service, and communications. They cleaned up after every day of work so the house wasn't a mess of insulation, and told me what they were attempting to achieve every day. I'm recommending them to everyone I know.
Rating CategoryRating out of 5
Yes, I recommend this pro

David Y.
11/2021
5.0
insulation
  + -1 more
Great work. Went the extra mile!
Description of Work: Basement insulation

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Shannon C.
06/2016
5.0
insulation
  + -1 more
unknown
Description of Work: We used Calnan to insulate and re-insulate several sections of attic and under-roof space. They were very knowledgable, professional and accommodating. We would recommend them highly.

Rating CategoryRating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$10,000

Judith K.
03/2016
5.0
insulation
  + -1 more
unknown
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro

Irwin K.
03/2016
5.0
insulation
  + -1 more
unknown
Description of Work: We had Rob Calnan come in for a consultation to insulate the attic of our home which had severe ice dams and extreme heating costs. Due to the fact that we have a furnace in our attic (a very bad idea in general), he could not do the easier job of simply insulating the attic floor, and had to do work to insulate at the attic roofline level to make the attic a conditioned space. (At least one other insulation contractor also recommended this route). During the consultation, he listed a number of options at various price points and gave us a lot of information about him, his crew, and details about his techniques. Though his price was higher than some competitors, we decided that his solution would help our home the most. | |Though it took him some time to actually get to work on our home, the crew was responsible and polite, kept the place clean, and did work promptly. Once work started it went reasonably quickly, and they were thorough - to the point of checking a sealed space that was initially not in the estimate and then electing to spend an extra day of work to make sure that crawl space was insulated as well as the rest of the other spaces. | |There were some minor drawbacks - I had to call back a number of times to confirm the dates when Mr. Calnan was able to come to start work on our house. I also had to clarify with him the process for getting the work inspected by the city. That said, he gave us his personal cell phone number after the consultation and responded whenever I called, which is much better than many other contractors. | |Though this winter was milder than the last year's winter, so far I can say that despite the fact that we heat our house to a higher temperature than last winter, our heating bill has gone down at least 30% for the past two winter months. It hasn't snowed enough to see if ice dams have returned yet but I am hoping that that problem will be solved also.

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$22,000

Louis T.
03/2016
5.0
insulation
  + -1 more
unknown
Description of Work: insulated attic of rental apartment

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$3,300

mary G.
03/2016
5.0
insulation
  + -1 more
unknown
Description of Work: We had Rob Calnan inspect our insulation needs and advise. He put in insulation and we had him put in R-60 which he recommended. He is also advising some work our our outside soffets (?sp) for good airflow in attic which is great as well. His sons work with him and left our place looking neater than when they came!!! |Would and will definitely use again.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,000

Christopher W.
01/2016
5.0
insulation
  + -1 more
unknown
Description of Work: Sudbury Valley Trustees is a nonprofit land conservation organization. Our office is a large converted farmhouse. Calnan's Energy Systems insulated and air sealed our basement. It made a noticeable improvement. We are now scheduling for our knee-wall attic insulation and in spring we will have our exterior wall insulated by Calnan's as well.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

$2,500

Laura S.
01/2016
5.0
insulation
  + -1 more
unknown
Description of Work: .
Rating CategoryRating out of 5
Yes, I recommend this pro

Art L.
09/2015
1.0
insulation
  + -1 more
unknown
Description of Work: I called left message and i was never contacted. I believe their site said they would return call within 24 hrs. Its been over a week.

Rating CategoryRating out of 5
responsiveness
1.0


Harry S.
07/2015
5.0
insulation
  + -1 more
unknown
Description of Work: His price for insulating the attic was 10000, whereas a local contractor asked 2400. Same job.

Rating CategoryRating out of 5
quality
5.0
value
1.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

$10,000

Response from Calnan's Energy Systems Inc.
Thank you for taking the time to review my company. The estimate for your project included much more than just installing more insulation. Our material cost far exceeds the local company's job cost. It is critical to execute all measures prior to adding more insulation, after install additional insulation access to bypasses and ductwork will be difficult. Thank you for having me out to you home and the opportunity to present my proposal. Rob Calnan Calnan's Energy Systems Inc. Office 781-894-9626 Cell 774-222-2848

MATHEW G.
02/2015
5.0
insulation
  + -1 more
He was fantastic!
Description of Work: He did my insulation!

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Duane P.
01/2015
5.0
insulation
  + -1 more
unknown
Description of Work: Great team. Efficient, flexible scheduling and quality work. Can't ask for more.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro

Dean Y.
12/2014
5.0
insulation
  + -1 more
Overall, pretty well.
Description of Work: Air seal basement

Rating CategoryRating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,500

Wayne M.
12/2014
5.0
insulation
  + -1 more
unknown
Description of Work: Blown-in wall insulation and insulation in attic floor.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,500

Christie C.
10/2014
5.0
insulation
  + -1 more
unknown
Description of Work: Insulated all exterior walls of two family home of three floors. Used Class 1 Blown-in Cellulose insulation. Did a superb job of communicating from start to finish about all details of the job, including nature of materials used. Some of this work can be messy. A small area on 3rd floor was accessed from inside house. Rob and workers(son and one other) left house and area around house in immaculate condition. I will be looking to them for some other window/door work soon.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$4,900

Michael C.
11/2013
5.0
insulation
  + -1 more
see above
Description of Work: Robert spent considerable time with me on the phone to help me out in a jam AND DIDNT EVEN GET PAID for his time. Extremely helpful and creative to provide an insulation solution on a job that grinded to a halt (I needed R38 with 2X6 rafters). I cannot say enough about his creativity and the time he spent with me walking through the solution.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$2,000

Amanda G.
07/2013
1.0
insulation
  + -1 more
I was never called back.
Description of Work: I called to get an estimate for insulating some heating pipes.

Rating CategoryRating out of 5
professionalism
1.0
responsiveness
1.0


Response from Calnan's Energy Systems Inc.
Dear Member, Thank you for your review, as owner of Calnan's Energy Systems Inc. I personally take and return all calls. I have been unable to locate any information about your call in my office call log book or at Angie’s list message center. Please contact me at anytime: Rob Calnan 781-894-9626 (office) or 774-222-2848 (cell) Thank you Rob Calnan Calnan’s Energy Systems Inc.

Kirti C.
09/2006
1.0
insulation
  + -1 more
No customer service at all.
Description of Work: I called for scheduling twice, left messages, never got a return call.

Rating CategoryRating out of 5
professionalism
1.0
responsiveness
1.0
punctuality
1.0


ROBERT F.
10/2005
5.0
insulation
  + -1 more
BOB IS THE TYPE WHO COMES OUT TO THE HOUSE, GOES OVER EVERY DETAIL OF HIS OPERATION, AND WHAT WILL BE GOOD FOR YOUR SITUATION AND WHAT WILL BE A WASTE OF TIME AND MONEY. STRAIGHT SHOOTER, ALSO KNOWLEDGE OF REBUILDING, VAST EXPERIENCE, AND GAVE ME SEVERAL OTHER REFERRALS FOR CONTRACTORS. WHILE INSTALLING, EXPLAINED IN DETAIL MANY OTHER ISSUES RELATED TO REMODELING AND CONSTRUCTION IN REGARDS TO INSULATION. BE CAREFUL WITH THE BIG VENDORS - INSULATING IS HARD TO VERIFY! THESE GUYS WERE GREAT.
Description of Work: INSULATED EXT WALLS, ATTIC AREA, AND GARAGE CEILING, BLOWN IN CELLULOSE.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$7,000

Contact information

105 Harvard St Unit 5, Waltham, MA 02453

http://www.calnansenergy.com

Service hours

Sunday:
Closed
Monday:
8:00 AM - 5:00 PM
Tuesday:
8:00 AM - 5:00 PM
Wednesday:
8:00 AM - 5:00 PM
Thursday:
8:00 AM - 5:00 PM
Friday:
8:00 AM - 5:00 PM
Saturday:
Closed

Licensing

Insured

Licensed*

Trade License Number
108453
Trade License Locale
MA
Trade License Authority
Massachusetts Consumer Affairs and Business Regulation - Home Improvement Contracting
Trade License Expiration
08/17/2026

Eco-friendly Accreditations

LEED Accredited Professional
No
Energy Star Partner
No
EPA Lead-Safe Certified
Yes
Use Green Products or Work Practices
Yes
State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

*Contact business to see additional licenses.


Service Categories

Insulation,
Windows,
Doors,
Energy Efficiency Auditing,
Unfinished Carpentry,
Sunrooms and Patio Enclosures

FAQ

Calnan's Energy Systems Inc. is currently rated 4.9 overall out of 5.

Sunday: Closed

Monday: 8:00 AM - 5:00 PM

Tuesday: 8:00 AM - 5:00 PM

Wednesday: 8:00 AM - 5:00 PM

Thursday: 8:00 AM - 5:00 PM

Friday: 8:00 AM - 5:00 PM

Saturday: Closed

Calnan's Energy Systems Inc. accepts the following forms of payment: Check
Yes, Calnan's Energy Systems Inc. offers free project estimates.
Yes, Calnan's Energy Systems Inc. offers eco-friendly accreditations.
No, Calnan's Energy Systems Inc. does not offer a senior discount.
No, Calnan's Energy Systems Inc. does not offer emergency services.
Yes, Calnan's Energy Systems Inc. offers warranties.
Calnan's Energy Systems Inc. offers the following services: Insulation. Energy Efficiency Auditing. Windows. Doors & Bulkhead installs - Proudly not a Mass Save contractor
window and door repairs, Interior Doors

Contact information

105 Harvard St Unit 5, Waltham, MA 02453

http://www.calnansenergy.com

Service hours

Sunday:
Closed
Monday:
8:00 AM - 5:00 PM
Tuesday:
8:00 AM - 5:00 PM
Wednesday:
8:00 AM - 5:00 PM
Thursday:
8:00 AM - 5:00 PM
Friday:
8:00 AM - 5:00 PM
Saturday:
Closed