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  • Average homeowner rating star icon3.9
    Average homeowner rating
  • Verified reviews icon11
    Verified basement remodels reviews

Top-Rated Basement remodelers in Castalia - Updated Nov 2026

Avatar for Mortar It Up Masonry Llc
Mortar It Up Masonry Llc
5.0(
8
)
Basement - Remodel

Serving Castalia, OH and surrounding areas

In business since 2011

Free estimates

"Everything went very well. We sent Michael pictures of what needed to be done. He gave us a quote. We later asked him to come onsite to firm up the quote, which he did, and the price was the same. He stated he was booked some time out, but said he sometimes has cancellations. He contacted us and stated he indeed had a cancellation, so was able to start the next day. He started the work, even without a deposit, since it was short notice, and we were still away, out of town. We were trying to decide what to do for railing, and had captured quotes from supply companies for replacement aluminum or steel materials, but they seemed high. We asked Michael for his thoughts. He checked a hardware store for us, sent us pictures, and then sent us the part number/SKU's from the store. We paid the store directly, and he picked up the materials. The work is almost done, but all has gone great thus far, and we see no reason why it won't complete with great success."
Recommended by100%of homeowners
G L Construction Management
4.7(
3
)
Basement - Remodel

Serving Castalia, OH and surrounding areas

In business since 2016

Free estimates

Emergency services offered

With years of professional renovating and remodeling experience, G L Construction provides services for any size project! From style options to budget concerns, we work with and listen to our customers and help them create the renewed space that they envisioned! Which is why we see so much repeat business! Please take a moment to look at our reviews from our wonderful customers! \n Our team has the knowledge and experience to complete the scope of work on time and under budget. Contact us today, we look forward to serving you!

Garage / Shed Build Project
Kitchen and Bath Remodeling Project
Kitchen and Bath Remodeling Project
Kitchen and Bath Remodeling Project
Kitchen and Bath Remodeling Project

+23

Recommended by100%of homeowners
Avatar for Homemade Design
Homemade Design
3.7(
322
)
Basement - Remodel

Serving Castalia, OH and surrounding areas

In business since 2006

Credit card accepted

"Amanda was really very good!  At first I was very skeptical, thinking why did I pay money to just speak with someone on the phone about my kitchen remodel project... but after just a few minutes of her addressing some of the issues/questions I emailed to her earlier, I knew it was worth it.  It was very clear that she knew her business and she gave me several ideas that I had not even thought about.  I told her that I would definitely recommend her to friends and I will very likely use her again myself for my next home project!

"
Pennsylvania Master Bathroom
Boston Small Condo Kitchen
California Client Saves with HMD Designer Discounts
Recommended by54%of homeowners
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Basement Remodel FAQs, answered by experts

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

Permits may be required for major repairs, structural work, or electrical and plumbing restoration after a flood. Check with your local building department to determine permit requirements and associated fees for your flooded basement cleanup project. Obtaining the correct permits helps ensure work is done safely and up to code.

The best type of basement ventilation system depends on your budget, the moisture in your basement’s air, and the types of windows you have down there. You should consider all of these factors when choosing a ventilation system. However, the most effective method for basement ventilation is an energy recovery ventilator (ERV) or a whole-house ventilation system, which preheats or precools incoming air from the outside while also managing water vapor.

The average cost of remodeling a basement is $30 to $75 per square foot. If your space is unfinished and looks like it may need more help, use the higher number when calculating your estimated basement remodeling costs. A good rule of thumb is to add an additional 20% to the top of your estimate to cover any “what if” situations.

Yes, most general contractors require an initial down payment. A reasonable deposit is typically between 10% and 25% of the total project cost, although this can vary by project size and location. This upfront payment helps the contractor cover initial costs like materials, permits, licensing, and hiring subcontractors. The remaining balance is usually billed according to a schedule outlined in your contract, often tied to project milestones or completion dates. Be cautious of contractors who ask for a large deposit of 50% or more, as this could be a red flag for a scam.

The Castalia, OH homeowners’ guide to basement remodels

From average costs to expert advice, get all the answers you need to get your job done.