Henry E.
3/3/2017
Hired John and his team to soundproof an internal video studio that I run. The results were outstanding - we basically plugged up a window between our suite and the suite next door (don't know who...
Granahan Construction
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3929 Stanford Dr
Oceanside, CA 92056
Granahan Construction is a soundproofing specialist based in Oceanside, California, dedicated to providing tailored soundproofing solutions since 1999. Their experienced team offers expert consultations, professional installation, and fully customized services for a variety of settings, including homes, condos, recording studios, and commercial spaces.
The company prides itself on delivering high-quality workmanship and maintaining full licensing and insurance, ensuring peace of mind for clients throughout every project. With a commitment to excellence, Granahan Construction has earned positive feedback from satisfied customers who appreciate the effectiveness of their soundproofing solutions.
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Reviews
4.57 reviewsSteve C.
11/19/2018
I had John soundproof my bedroom ceiling in December of 2010. His crew worked worked extremely hard and the installation tremendously reduced the sound level from the new neighbor upstairs who...
David C.
2/6/2017
Before you read anything else, know that John might attempt to sue you if you write a bad review like he attempted to sue me, luckily freedom of speech is still a thing. I paid $14,200 in cash to...
Lisa D.
8/17/2014
John and his crew are amazing!! They soundproofed my bedroom in my condo, and I can finally sleep and enjoy my home. John is very knowledgable and professional. He listens carefully to your needs...
Allen P.
9/1/2015
One word... AWESOME! The team at Granahan construction did a great job soundproofing a wall in between my Kickboxing gym and a yoga studio. What seemed to be impossible was done quite well. No...
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