Locally Owned and Operated

Here at Triangle Exteriors we have been serving our customers now for over 30 years. Giving each customer our personal attention from start to finish when we install our products. We are a licensed, fully insured and accredited business and stand behind every job we do with a lifetime warranty on all materials, labor, and professional installation of all your windows, doors and siding. Replacement Doors, Windows and more in Lansing and surrounding areas.

Licensed Michigan Contractor

When you are thinking of hiring someone to perform work on your most valuable asset it can be very stressful and confusing. Let Triangle Exteriors help you take care of all your home service needs. I am a licensed builder with over 3o plus years in the construction industry. Whether it is new construction, commercial or remodeling let us put our knowledge to work for you. Most of the work done to your home requires inspections, we work with local and state inspectors to insure that all work is done to meet those expectations you expect from a contractor. This in turn gives you the peace of mind knowing your work was done by a licensed professional.

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.

Why Choose Triangle Exteriors

A+ BBB Rating
Licensed & Insured
Locally Owned & Operated
Satisfaction Guaranteed
Owner Is On All Job Sites
Lifetime Warranty On Labor & Materials

What Our Clients Are Saying

“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 |