Gam Home Improvement

★ ★ ★ ★ ☆ 4.8 (4)

Manassas, VA

Gutters • Siding • Windows • Remodel/Home Improvement

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We specialize in siding, window, door, and gutter replacement. We have more than 12 years of experience. Take advantage of our low prices in the highest quality windows - just $350 per window! Call us for a free estimate!


Carolyn U.
★ ★ ★ ★ ☆ 4.0

We are very pleased with the work of GAM Home Improvement. With a new roof, gutters, and vinyl wrapping, our house looks brand new! Dennis and his team did a terrific job, not only with the construction work, but also assisting us with the tedious insurance claim process. Would definitely recommend.

Cathy P.
★ ★ ★ ★ ★ 5.0

GAM Home Improvement recently did a great job reconstructing our home’s portico. It was poorly constructed by our builder and was loaded with dry rot. After trying to fix it ourselves multiple times, but it kept coming back. Finally, a friend referred GAM to help. Denis came out, explained what was going on and told us how his company could fix it right. He was very professional and immediately we felt assured that his solution would work. Our feelings were right. The GAM crew showed up when scheduled, worked hard, treated our family with respect and did the job right. We are happy with the results and will likely hire them in the future on other siding and roof projects.

Kevin W.
★ ★ ★ ★ ★ 5.0

Very pleased with all the work from GAM. Dennis was always available checking the work,making sure we were happy with work.Took care of little details we could have missed. I would highly recommend GAM.

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Services Offered

  • Gutter Install
  • Gutter Repair

  • Steel Siding Constuction
  • Fiber Board Siding Construction
  • Stucco Siding Construction
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  • Picture Window Install
  • Fiberglass Window Install
  • Double-hung Window Install
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Remodel/Home Improvement
  • Basement Remodel
  • Wood Stair Install
  • Wood Railing Install
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