Capitol Solar Energy  logo

Capitol Solar Energy

4 11 reviews Solar installer in Castle Rock, CO
  • 1 area served
  • Licensed

What Capitol Solar Energy customers say

4

11 reviews

Stuart Maybee

Reviewed on Mar 5, 2025

I have had a Capitol solar Thermal energy system for more than a dozen years now. It has performed very well for us enabling more than a 60 percent reduction in use of natural gas for heating and hot water. They are very knowledgeable and their service and quality of work is top notch. I am happy to give them my highest recommendation.

Maybee, Stuart

Reviewed on Apr 9, 2008

I am very pleased with the quality of the work and the performance of the system. The Capitol Solar people are extremely knowledgeable and helpful.

Brent Kremer

Reviewed on Apr 3, 2008

Three recommendations (two of which I realize will increase the cost to the customer, but I think the cost is negligible relative to the overall cost of the system): 1) Provide a better wiring diagram of the final system design (mine had hand-written corrections and proved difficult for the `average` furnace contractor to troubleshoot when the non-solar part of the furnace failed). 2) Provide an option to cover the tank in something other than sheet metal -- this will add cost, but the aesthetic preferences in our situation necessitated it being re-covered by us anyway. 3) Provide an option for different aquastats. The mechanical one installed MAY be defective, and we elected to procure a digital one at our own expense. Capitol Solar did acknowledge they would have replaced it if the unit was defective. The mechanical one has proven to have a `temperature sensed` vs. `switch activated` (my layman`s terms) difference of up to 45 degrees (sometimes its dead-on, but its usually off by 20 degrees or more). We`re waiting for about another month to determine how much propane we`ve saved by installing the system. The original estimate provided by Capitol Solar was that the system would eliminate 60-80% of our original propane usage. We`d be satisified if it took care of 50% of the propane usage, and it feels like we`re on track to accomplish that. I would definitely recommend the company to anyone and I consider the owner & company to be a trusted, honest, and reliable contractor. They were very responsive and helpful when the circuit board on our furnace failed (non-solar related), and the furnace contractor had to work with them telephonically to restore the solar-incorporated heat system.

Tom Pritchard

Reviewed on Aug 20, 2006

very professional, great system. eleminated gas usage for hot water and space heating. I have been aware of the improtance of solar power for water and space heating since 1974

Robert Shannon

Reviewed on Aug 15, 2006

Exceptional work and professional conduct. The system has worked flawlessly for 9 1/2 years. I would recommend Capitol Solar to anyone. We had a solar hot water system in Pennsylvania for 12 years before moving to Boulder

Sarah Mayer

Reviewed on Mar 13, 2006

We understand how the system works much better than we ever did before. We are getting much more energy from our rather large system than we did for the first 15 years since using Capitol Solar. We have 7 4x10 panels on the roof and a 600 gal. tank plus 3 radiators, separately zoned for each of 3 floors. I am not sure when they rebuilt our solar tank which is when we started with them. Please ask Bruce Padgett for that date. Our initial investment and installation of the system was in 1980 when there were both federal and state tax incentives which were very important in allowing us to put in the system. Capitol Solar only came into the picture in the 1990`s when the original holding tank needed to be replaced. There was no incentive at that time and we did the replacement even though it will take a long time to recoup the costs. Capitol Solar did help us greatly increase the efficiency of our system for space heating with the radiators. They have been great.

Jeromy Kaplan

Reviewed on Mar 2, 2006

This was the second time I`ve hired Capitol Solar. They added solar to my previous house and I was satisfied enough to hire them a second time.

About Capitol Solar Energy

11
Customer reviews
4
Average rating
1
Area served

What Capitol Solar Energy does

Services

  • Installation

Licenses

  • DOUGLAS COUNTY MECHANICAL CONTRACTOR

Reported by the company. SolarReviews has not independently verified these.

Where Capitol Solar Energy works

  • Colorado

Where to find Capitol Solar Energy

Head office

8243 Pinewood Drive, Castle Rock CO, 80108

Open in Google Maps (opens in a new tab)

Capitol Solar Energy

Free quotes, no obligation

Get quote