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Basement Finishing
Basement Finishing Ideas
Basement Finishing Plans
Basement Finishing Systems
Basement Flooring Systems
Basement Wall Finishing

Basement Remodeling
Basement Remodeling Plans
Basement Renovations
Basement Refinishing
Basement Subfloor
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Thermaldry Basement Flooring

Basement Design
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Basement Ceiling Ideas
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Mold Remediation
Mold Testing & Inspection
Mold Removal
Mildew Removal

South Portland, ME's Trusted Basement Finishing and Remodeling Contractor

Happy Customers Surrounding South Portland, ME
Work Requests

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Basement Finishing & Remodeling

So many contracting companies improperly finish basements because they use organic materials like wood and drywall. Basements are different than other areas of your home as it is the most likely area for water damage. These organic materials mold and rot quickly.

Our company is different because we only use our patented products which are completely inorganic & waterproof. If a pipe bursts, or a flood happens, or the basement leaks after rain your South Portland basement will not ever be damaged. 

Our Finishing Products:

  • Waterproof, Washable, Insulated Walls
  • Mold-Resistant, No-Sag suspended Ceilings
  • Basement Dehumidifiers
  • Variable, Energy-efficient Basement Lighting
  • French, Bifold & six-paneled steel Doors
  • Basement Staircases
  • Energy-efficient, Double-paned Windows
  • Carpet, Tile & Faux Wood Flooring

Professional Mold Remediation

Our certified professionals will come to your South Portland and identify the areas of your home with mold and the type of mold. We then completely remove the mold as well as damaged materials from your home. 

Our Mold Services:

  • Energy-Efficient Dehumidification
  • Damaged Material Removal

Once the mold and damaged materials is completely removed, we rebuild the removed pieces of your home using mold-resistant materials. If needed we also install an energy-efficient dehumidifier to control the relative humidity to prevent future mold growth. 

News & Events From from South Portland
Keith Trembley Builder is proud to be a part of the Bangor Humane Society's 18th Annual Paws on Parade which...
Keith Trembley Builder is proud to be a part of the Bangor Humane Society's 18th Annual Paws on Parade which is a fundraising event to help support the homeless pets in our community. ... [Read more]
Work Requests From South Portland, ME
Vicinity of Pine Street in South Portland
We are purchasing a new home in South Portland (closing date is 7/13). It has a nice large basement, but needs finished. Would love for someone to start work as soon as we get the keys.
Vicinity of Elizabeth Taylor Lane in South Portland
I'm interested in lightly finishing my basement. Starting with the "doghouse" entry. I'm not entirely sure what I mean by a light finish, I'm thinking I'd like to have the walls and floor painted a glossy white. I'd also like to have a celling installed.
Vicinity of Thornton Ave in South Portland
Basement remodel with bathroom, bedroom, living area and possibly a small kitchen.
Vicinity of Alfred St in South Portland
750 sq/ft daylight basement
Vicinity of Sandy Hill Rd in South Portland
Clean, dry basement in 1970's built home. Looking to finish into main family room with one bedroom. Project will include minor excavation to open one basement window into walk out door and another basement window into egress window.
Vicinity of Sawyer St in South Portland
Vicinity of Bremen Street in South Portland
We are looking to finish the basement of our property. Having a full daylight basement that is dry, we feel would we worthy of refinishing and will add value to our house. We look forward to hearing back from you
Vicinity of Summerglen Rd in South Portland
I'm considering converting my basement into an 800sqft(max allowed I believe per South Portland Code) in-law apartment. Thank you! Rhonda
Vicinity of Goudy St in South Portland
We have a finished basement that we have begun rehab on. The carpet has been ripped up and laminate flooring has been ordered. Upon doing this ourselves we discovered we may want a professional to look at a few things such as replacing our ceiling (possibly our siding), the stairway leading to the basement and a few other small details. Please contact me as soon as possible. We would like to discuss our options, timeline and pricing.
Vicinity of Angell Ave in South Portland
Want to finish basement
Vicinity of School Street in South Portland
I want to refinish my basement, but I mostly want it sealed and insulated.
Vicinity of Winding Way in South Portland
We have to install a drop ceiling around 500 sq ft. thank you
Vicinity of Sylvan Rd in South Portland
Finishing basement walls
Vicinity of Oakwood Drive in South Portland
Converting the basement into a home office + gym + kids play area. Basement walls are finished and insulated but need electric wiring, etc.
Vicinity of Dawson St. in South Portland
Want good insulation in basement also nice living space,
Vicinity of McLean Street in South Portland
We are considering finishing our basement. We were quoted by Owens Corning and very turned off by the high pressure sales tactics combined with high cost. Are your costs and sales team reasonable?
Vicinity of Hall St. in South Portland
Hello, I am looking into redoing the floor in my basement. I had put down wood laminate but, unfortunately, some water got into the basement and ruined the floor. I would like to look into an option that could possible future water. If you could give me a call to discuss my options, I would really appreciate it! Sincerely, Scott
Vicinity of Brigham Street in South Portland
We would like to finish an 850 square foot basement space. Wood flooring to be used only for 3/4 of the space, and tiles for the segregated utility room. Please provide an estimate on cost and time to complete the project. Thanks very much. Trenton & Karolina Sands
Vicinity of Lowell Street in South Portland
Would like and estimate to waterproof and finish my basement.
Vicinity of Mussey St in South Portland
Our basement has just been waterproofed; we were thinking of building a family room/guest room and also add a bathroom and laundry corner.