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Client Testimonials

We offer high quality replacement window, door and siding products to our customers along with stellar installation services every day. We take the phrase, “Guaranteed Customer Satisfaction” seriously and know happy, satisfied customers are the driving force behind the success of our business. However, don’t just take our word for it, read what other customers have to say about Triangle Exteriors and the work we do.

“When Robert told me he could replace my door when the big box stores said it wasn’t possible, I was skeptical. But after the job was done, it looked like it was part of the factory door unit. He exceeded my expectations and all the while providing great service and friendly attitude. There were no surprises and no extra fees. Everything he said he would do he did and more. Highly recommended for any entry door needs.”

Joe N | Replace Exterior Door |

“Robert work with me through this whole project. I’m out of state so I couldn’t be there. But he inform me everything he did then took pictures of the finish project. Price was lower than I expected. He replace the whole front door and 3 windows. What a great job!”

Michele J | Replacement Windows |

“Robert was very professional and understanding of our wants from the very beginning. He showed up on time and finished in a timely manner. I would definitely hire him again.”

Daniel W | Replace Sliding Doors |

“Robert installed a new back door for us and I couldn’t be more pleased with the work he did. In fact, my husband and I decided to get a new front door too and we’re having him install it because we were so impressed with his workmanship and professionalism. Would recommend to others!”

Jade T | New Front Entry and Rear Entry Doors |

”  We had Robert come out to give us a new sliding door and to raise our side door. The work they did was amazing, and he worked quickly. The new sliding has made a huge difference compared to our last one. And he even realigned the side door when he raised it. I was so happy to find out that I didn’t have to pull on the door while locking it. I’m definitely calling Robert anytime I need something done to the house.”

Susan R | New Sliding Glass Door|

“Great people, friendly and supportive.. they’ve just installed our new front door.. fast and professionally.. Thanks guys..

Jade V | New Front Entry Door |

“Bradley B. in East Lansing, MI “We had Robert install a new front door on our home. He was professional, straightforward and very easy to schedule.”

Bradley B | Front Entry Door |

“Robert and his team at Triangle are great to work with. Robert walked me through the process and explained how to choose a door when I asked for his opinion. He was professional, helpful and respectful. He kept me updated when it took a while for Lowes to get our doors in. He ended up spending a day and a half replacing two entire door frames and installing exterior and storm doors. Weeks later he saw me at my local QD and greeted me by name and asked how the doors were working out. When I mentioned that the storm door was catching on the frame, he came out and adjusted both of them. I can’t recommend this guy enough.”

Emily K | 2 New Entry and Storm Doors |

“We are thrilled with the wheelchair ramp that Robert built for us at Elsie Publishing and so pleased at how promptly he responded to all communications, and how he finished the job in a very short time. The ramp has already been useful in more ways than we imagined.”

Lisy H | Handicap Ramp built |

“Triangle Exteriors did a great job installing a back door and dog door. They placed me on their schedule at a time that worked for me and did an amazing job. Great customer service. I would highly recommend.”

Awuta C K | Entry Door Install Dog Door |

“Triangle Exteriors did a wonderful job on my new side door the staff was not only polite and respectful but also time sensitive and professional. The door is perfect! It looks immaculate inside and out. It closes smooth and easily and doesn’t leak. I am very happy and I highly recommend their work.”

Victoria C | Side Entry Door | Rebuild |

“Friendly, professional, informed, high quality, no pressure experience. We will use them again. Thanks Robert!”

Margaret R | Replace Slider unit |

Your Satisfaction Is Guaranteed

At no point will you have to deal with salesmen, subcontractors, or separate distributors. We give fast, free in home quote for a demonstration or over the phone estimate with a few easy questions and cut out the middleman. We are here to guarantee your happiness with our quality craftsmanship and warrantied work, with a peace of mind you will have for years knowing you made the right choice.