Sigma Co.

Sigma is fantastic.
They repaired and reset a wrought iron fence and gate for us and did a great job. They were professional, timely and really knew what they are doing. The owners were great to deal with and the crew followed through perfectly. We will be doing more with Sigma.

I'm giving the provider a "C" and not an "F" as I'm not sure if the fault is the provider or Angies List.  Otherwise I'd say "F" for not responding.
I sent a message to Sigma via the Angies List messaging system asking for information and an estimate.  Never got a reply.

Alex was very nice & courteous k seemed to know exactly what we needed and we felt like we make a good decision. The job was supposed to be a three days job. At first Alex would return my calls and then no calls, would occasionally send a person out to do another portion of the work and as of today we haven't seen him, heard from him, can get a return call and the work is not complete. So frustrating, especially since he seemed like such a nice guy

The crew came out and picked up the control box and arm so that each component could be tested and only the necessary work done.   I liked the crew and the fix is good

Called on morning of 7/30/2013.  They were out in several hours.  Checked out problem, ordered part.  Gate repaired on morning of 7/31/2013.  Excellent service and price.  Would recommend them and will use them in the future.

Alex was easy to work with.  I liked his design and ideas in making the gate both functional and aesthetically pleasing.  He and his crew were prompt in showing up to work. They finished the job in a timely manner. I liked the finished handle and installation and was extremely pleased with the quality of their work.  I would definitely use their service again.

Alex was very professional, knowledgeable and offered a fair price. 
I would definitely use them again.

Great job. Great price....easy to deal with and very pleasant.

They were outstanding. Sigma came highly reviewed on Angie's List. They were fairly priced, extremely responsive, helpful and are family-owned. The work was exactly as I said it would be.

They are a little hard to reach but he is good about calling back. Alex was very nice and gave me a good price. I will be using him to put a motor on my fence very soon.

It went great.  Alex & John did the work on short notice.  They finished everything in a timely manner and explained in detail what they had done and how to operate and troubleshoot the new system.   Alex advised me that if I ever had trouble with it to call him. He welcomed my 10% off coupon for Angie's List customers.   I'm glad I found this company on A.L., and will recommend them to anyone who needs service for an iron gate and fence, a metal bannister, or any kind of metal work repair or creation.  They saw  a metal console table in my living room that I had purchased from an interior designer and told me they also make metal pieces for the interior design trade.  

Sigma was fast and responsive.
I was prepared to take the gate off and deliver it to them but they worked it so that could come by and fix it in place saving me a lot of time. The next day they returned to finish painting the weld.
It was a pretty quick and easy fix for a very reasonable price.

Alex Sideris is without a doubt, one of the most polite, conscientious and talented people ever to help with anything at my house.  He came over the same day I called, sent an estimate via email the next morning, then started the work that afternoon.  We discussed, at length, different options for changing how my gates worked and it was fun watching his face light up when we "invented" something that might work.  
While he was working, my neighbor came over and asked if he could give an estimate for some gate work at her house.  He ultimately did a repair job for them, and they were extremely satisfied with it.
Alex is so pleasant that I wish I had a lot more welding to be done around the house!  He's a good, old-fashioned, handshake kind of person who puts his heart into what he does.
I would obviously and definitely recommend him to anyone who needs welding and creative approaches to old problems.

Went great overall. Very professional, high quality and accountable for his work. Price was within what I was willing to spend although more than I expected based on our original conversation. Alex may have originally underestimated the scope of work. I would definitely use alex again.

They performed great!
Sigma is a great family business with a can do attitude. Everyone was concerned about doing the work well and to my satisfaction. The job was small and required to get things right due to the nature of the job.
I am very happy with the results.

Alex Sideris and his crew at Sigma Co. did an outstanding job for a reasonalble price. Alex and his brother Chris were very couteous, professional, and helpful in explaining the work that needed to be done, and how the new fence and gate could incorporate design and construction improvements that would ensure it would last much longer than the old fence.  I would not hesitate to use their services again for this kind of work.

My 20 year old driveway gate operator was giving me problems (banging closed, wouldn't shut off once gate was closed, etc.). I called some of the other companies reviewed by Angie's List to get quotes on repairs and/or replacements. A number of them jumped straight to replacement and really were not interested in repairing the operator. Some even felt they could give me decent quotes over the phone without even looking at my gate! Alex was willing to look over my old operator to see if we could repair it.
Overall the job went very well. I was impressed at how well Alex and his specialists looked over my situation, determined exactly where the gate operator needed to go, how long the arm needed to be, where it would need to attach, etc. They definitely did not just come and drop in a new operator - the whole job was well thought out.
The work crew was very polite. They worked for hours and cleaned up when the job was completed for the day. My repainted gate arrived on a flatbed and was carefully packed to prevent scratching the new paint job.
The job took about 2 weeks from start to finish. No real surprise here - Alex told me up front it would be about 10 days depending on the availability of his painting subcontractor.
The cost was on par with others. The entire job was not cheap, but I asked Sigma to do a lot - basically bring the entire gate back to like new condition. A big reason I gave the job to Sigma was that they could sandblast and professionally paint the gate. All others either did not paint or would spray paint in place.
With everything complete, my gate truly looks as good or better than new. Between the power coat and the commercial gate operator I don't expect any issues for at least 5 years (gate operator is guaranteed for 7 years) and should hold up for years after that!

Our garage is in our backyard, and we have an automated gate opener that allows access to garage.  The gate started to act funny and did not want to open or close the entire way one evening.  I was able to disconnect the swing are from the gate and was able to tie the gate shut.  The next day I called the Sigma Co. main office number and spoke with Alex about my gate.
He was very helpful and had effectively diagnosed the problem over the phone.  We scheduled a service call for their next available opening.  Alex gave us an appointment time window and took our cell numbers.  The service tech was having some trouble with an existing job and called to let us know that he would not be able to make his original appointment window.
He was very professional and asked if we would mind him being a little late, or if we would like to reschedule.  I did not mind the delay (only about an hour) so he came by our house later that day.  After taking a look at the system, he agreed with Alex's original assessment.  He disconnected the swing arm and took it with him to test it.
Alex called back later the next day and informed us that we would need a new swing arm.  He gave us multiple price and quality options.  We decided to get a new arm with a factory warranty.  He was able to have his people pick the arm up and com by our house to install it the next day.
All told.  I called on Tuesday afternoon.  They cam by Wednesday afternoon to get the part.  They called Thursday afternoon to let us know the results and to plan the fix.  Then they came by on Friday afternoon to make the fix.  All in all, a great experience.  I would highly recommend Sigma Co.

Overall Sigma did a great job.  I called on Aug 31 and within a week and a half the job was completed.  Contractors are reluctant to come to my house for smaller jobs because I'm so far out of Houston, but Sigma had no issue travelling to me.  I mostly communicated with them via email and they were always prompt with responses.

Great experience from initial conversation to completion of the project..

Sigma and our contact Alex were very pleasant to work with.  It's a
family-owned business and they were very responsive.  The work took
longer that I had expected, but other than that, they were nice to deal
with and do quality work.

After calling several companies who were not interested in servicing a GTO opener I tried Sigma.  Alex was extremely sympathetic, helpful, thorough and professional from the moment he picked up the phone the first time to when he wrote me a detailed close-out email explaining the work that had been done and what we needed to do to keep the newly installed LA-400 gate opener operating well for years to come.  Although he too didn't like working on GTOs, he suggested we first try to fix the unit to save money.  While I was disappointed this wasn't possible, I knew it had nothing to do with Sigma and everything to do with the lack of GTO service support in our area.  Alex provided a discount on the call-out / troubleshooting work they did on the GTO unit and applied it to the already competitive cost of the new Liftmaster LA-400 which also includes a 3 year parts / labor warranty which gives me piece of mind while the house is being rented out during our overseas assignment.  I have never come across someone in the skilled trade business with Alex's honesty, desire to please, patience and thoroughness.  He spent considerable time writing me several long emails to keep me informed on the troubleshooting, tell me my options for repair and replacement, and keep me posted on the progress of the work.  All this was done within one week under time pressure before the tenants moved in and the ultimate results were fantastic.  I would highly recommend Sigma to anyone.

We contracted with Sigma to do a plain welded panel gate and fence panels. While they were here getting ready to pour the track and footers, I was telling them about a gate a friend of ours has. It's laser cut steel and we've always really admired it but didn't think we could afford it. A couple of days later, Sigma called to say they'd like to work with us and do a laser cut steel gate for close to the same price we'd negotiated. We were surprised and just delighted. We designed the steel panel design ourselves, which took a few weeks, and then the steel fabricators took a few more. 
This installation ended up taking longer than we had expected, but we can hardly complain. The quality of the installation is great and we couldn't be more happy with the way everything turned out. Definitely one of the best contractor experiences we've ever had.

Although they were very late the first time, they did fix the gate and gave some observations on the overall condition.  Also, on the phone, they were very helpful in discussing what might be the issue and how to solve it.  The price was fair, so the initial experience was positive.  However, the gate did malfuction again (not sure if this was their fault as it could just be that something new had gone wrong--it's not a new gate).  So I called them back, and again they were very helpful, offered to fix it for free or apply the original money to a more lasting fix, which was very decent of them.  He said he would be out that day or the next and would call me.  Unfortunately, no one ever showed up or called.  It's been about a week now and I have tried calling their office--no one has picked up, but I left a message which has not been returned.

be