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Basement professionals near Monrovia, CA

Top pros for your project

These pros consistently receive high praise in customer reviews.These popular pros are highly sought after for their quality and expertise.These pros recognize that your time is important, and are the fastest to respond to requests.These highly recommended pros are experts, ready to help with your project.

These pros consistently receive high praise in customer reviews.These popular pros are highly sought after for their quality and expertise.These pros recognize that your time is important, and are the fastest to respond to requests.These highly recommended pros are experts, ready to help with your project.

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Avatar for Tulip Remodeling
Avatar for Tulip Remodeling
Tulip Remodeling
Tulip Remodeling

Top Pro

Exceptional 5.0

(28)

Exceptional 5.0

(28)

General Contracting

Licensed pro
  • 24 hires on Thumbtack
  • Serves Monrovia, CA
  • 24 hires on Thumbtack
  • Serves Monrovia, CA
Amelie M. says, "My experience with TULIP REMODELING has been outstanding. I am having my 2 car garage converted into an ADU From the beginning to now, Oran has been outstanding. He answered my phones and replied to emails and text messages immediately. He was always available to answer my questions. Their workers are outstanding as soon as they reach the worksite they get to work immediately. Going with Tulip Remodeling is the best decision I've made and if I ever need any construction done, I will definitely call them again. I highly recommend this company!"See more
Amelie M. says, "My experience with TULIP REMODELING has been outstanding. I am having my 2 car garage converted into an ADU From the beginning to now, Oran has been outstanding. He answered my phones and replied to emails and text messages immediately. He was always available to answer my questions. Their workers are outstanding as soon as they reach the worksite they get to work immediately. Going with Tulip Remodeling is the best decision I've made and if I ever need any construction done, I will definitely call them again. I highly recommend this company!"
Avatar for Built To Perfection Inc.
Avatar for Built To Perfection Inc.
Built To Perfection Inc.
Built To Perfection Inc.

Top Pro

Great 4.8

(113)

Great 4.8

(113)

General Contracting

In high demand
Licensed pro
  • 177 hires on Thumbtack
  • 1 similar job done near you
  • 177 hires on Thumbtack
  • 1 similar job done near you

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Larry T. says, "Recently had a pedestrian door installed into the side our level one garage in LA. Ethan was the PM assigned to the project and was very responsive, communicative throughout the design, permitting and construction. I would highly recommend working with Built To Perfection and Ethan again on future remodels."See more
Larry T. says, "Recently had a pedestrian door installed into the side our level one garage in LA. Ethan was the PM assigned to the project and was very responsive, communicative throughout the design, permitting and construction. I would highly recommend working with Built To Perfection and Ethan again on future remodels."
Avatar for Guadron Construction Group
Avatar for Guadron Construction Group
Guadron Construction Group
Guadron Construction Group

5.0

(1)

5.0

(1)

General Contracting

  • Serves Monrovia, CA
  • Serves Monrovia, CA
Sally P. says, "I recently worked with Guadron Construction Group to create blueprints, obtain permits, and build an accessory dwelling unit, and I cannot say enough positive things about my experience. As someone who has little experience in the construction industry, I was nervous about the entire process, but Ray Guadron, who is both a real estate broker and a general contractor, put me at ease from the very beginning. First, Ray worked closely with me to create blueprints that fit my needs and vision for the space. He was patient and attentive, and he worked hard to ensure that every detail was perfect before we moved on to the next phase of the project. Once the blueprints were finalized, Ray took care of obtaining all necessary permits, which was a huge relief for me. He was very familiar with the local regulations and was able to navigate the process smoothly and efficiently. When it came time to build, Ray and his team were professional, skilled, and efficient. They kept me updated every step of the way and were always willing to answer any questions or address any concerns that I had. The end result was an accessory dwelling unit that exceeded my expectations in every way. The quality of the workmanship was outstanding, and the space was exactly what I had envisioned. I could not be happier with my decision to work with Guadron Construction Group, and I would highly recommend them to anyone in need of a reliable, skilled, and trustworthy contractor."See more
Sally P. says, "I recently worked with Guadron Construction Group to create blueprints, obtain permits, and build an accessory dwelling unit, and I cannot say enough positive things about my experience. As someone who has little experience in the construction industry, I was nervous about the entire process, but Ray Guadron, who is both a real estate broker and a general contractor, put me at ease from the very beginning. First, Ray worked closely with me to create blueprints that fit my needs and vision for the space. He was patient and attentive, and he worked hard to ensure that every detail was perfect before we moved on to the next phase of the project. Once the blueprints were finalized, Ray took care of obtaining all necessary permits, which was a huge relief for me. He was very familiar with the local regulations and was able to navigate the process smoothly and efficiently. When it came time to build, Ray and his team were professional, skilled, and efficient. They kept me updated every step of the way and were always willing to answer any questions or address any concerns that I had. The end result was an accessory dwelling unit that exceeded my expectations in every way. The quality of the workmanship was outstanding, and the space was exactly what I had envisioned. I could not be happier with my decision to work with Guadron Construction Group, and I would highly recommend them to anyone in need of a reliable, skilled, and trustworthy contractor."
Avatar for Summit Remodeling Group
Avatar for Summit Remodeling Group
Summit Remodeling Group
Summit Remodeling Group

Excellent 4.9

(10)

Excellent 4.9

(10)

General Contracting

Licensed pro
  • 11 hires on Thumbtack
  • Serves Monrovia, CA
  • 11 hires on Thumbtack
  • Serves Monrovia, CA
Linda & Joe S. says, "We are realtors, so over the years, we have dealt with many contractors...some good, some mediocre, and some...nightmares! Nathan and his team were far and away the best we have worked with...and the work was on our own home! We remodeled our master bedroom & bath and our large family bathroom, added new interior doors, new paint, new flooring and baseboards throuout most of our 2400 square foot home...and it is beautiful!!! The team did what they said, on time, met agreed upon costs. The communication with Nathan was impeccable. The crew was wonderful...knowledgeable, excellent work ethic, on time, polite, fun. I would highly recommend them to clients, friends and family. Saving money to have them do more on my house!"See more
Linda & Joe S. says, "We are realtors, so over the years, we have dealt with many contractors...some good, some mediocre, and some...nightmares! Nathan and his team were far and away the best we have worked with...and the work was on our own home! We remodeled our master bedroom & bath and our large family bathroom, added new interior doors, new paint, new flooring and baseboards throuout most of our 2400 square foot home...and it is beautiful!!! The team did what they said, on time, met agreed upon costs. The communication with Nathan was impeccable. The crew was wonderful...knowledgeable, excellent work ethic, on time, polite, fun. I would highly recommend them to clients, friends and family. Saving money to have them do more on my house!"
Avatar for Legacy West Development
Avatar for Legacy West Development
Legacy West Development
Legacy West Development

5.0

(1)

5.0

(1)

General Contracting

  • Serves Monrovia, CA
  • Serves Monrovia, CA
Build More Space. Add More Value. Create Your Legacy. At Legacy West Development, we don’t just build—we transform the way families live. We specialize in designing and constructing beautiful, functional living spaces that maximize your property’s value while creating room for the life you envision. Our Areas of Expertise 🏡 ADU Specialists Whether you’re building a detached ADU, converting a garage, or adding a Junior ADU (JADU), our experienced design-build team guides you from concept and architectural plans through permits and final construction. We create spaces that are perfect for family, rental income, guest accommodations, or multigenerational living. 🚗 Garage Conversion Experts Unlock the hidden potential of your garage. We transform underutilized garages into stunning, code-compliant living spaces, including: * Garage Conversion ADUs * Home offices * Guest suites * Home gyms * Entertainment rooms * Flexible bonus rooms designed around your family’s needs 🏠 Home Additions & Expansions Need more room without moving? We specialize in seamless home additions that look and feel like they were always part of your home, including: * Primary bedroom expansions * Luxury master suites with spa-inspired bathrooms * Additional bedrooms * Family room expansions * Kitchen enlargements * Bathroom additions * Second-story additions Why Homeowners Choose Legacy West Development ✔ Complete Design-Build Services — From initial ideas to final inspection, everything is managed under one experienced team. ✔ Personalized Designs — Every project is tailored to your family’s lifestyle, goals, and budget. ✔ Quality Craftsmanship — We build with precision, premium materials, and attention to every detail. ✔ Code-Compliant Construction — Our projects are designed and built to meet all applicable building codes and permitting requirements. ✔ Clear Communication — You’ll receive consistent updates and know exactly where your project stands throughout construction. Build More Than a House—Build Your Legacy. Whether you’re creating rental income with an ADU, expanding your growing family’s home, or transforming an unused garage into valuable living space, Legacy West Development is committed to delivering exceptional craftsmanship, thoughtful design, and a construction experience built on trust. Your dream project starts with one conversation. Let’s bring your vision to life—and build something that adds lasting value to your home for generations to come.See more
Build More Space. Add More Value. Create Your Legacy. At Legacy West Development, we don’t just build—we transform the way families live. We specialize in designing and constructing beautiful, functional living spaces that maximize your property’s value while creating room for the life you envision. Our Areas of Expertise 🏡 ADU Specialists Whether you’re building a detached ADU, converting a garage, or adding a Junior ADU (JADU), our experienced design-build team guides you from concept and architectural plans through permits and final construction. We create spaces that are perfect for family, rental income, guest accommodations, or multigenerational living. 🚗 Garage Conversion Experts Unlock the hidden potential of your garage. We transform underutilized garages into stunning, code-compliant living spaces, including: * Garage Conversion ADUs * Home offices * Guest suites * Home gyms * Entertainment rooms * Flexible bonus rooms designed around your family’s needs 🏠 Home Additions & Expansions Need more room without moving? We specialize in seamless home additions that look and feel like they were always part of your home, including: * Primary bedroom expansions * Luxury master suites with spa-inspired bathrooms * Additional bedrooms * Family room expansions * Kitchen enlargements * Bathroom additions * Second-story additions Why Homeowners Choose Legacy West Development ✔ Complete Design-Build Services — From initial ideas to final inspection, everything is managed under one experienced team. ✔ Personalized Designs — Every project is tailored to your family’s lifestyle, goals, and budget. ✔ Quality Craftsmanship — We build with precision, premium materials, and attention to every detail. ✔ Code-Compliant Construction — Our projects are designed and built to meet all applicable building codes and permitting requirements. ✔ Clear Communication — You’ll receive consistent updates and know exactly where your project stands throughout construction. Build More Than a House—Build Your Legacy. Whether you’re creating rental income with an ADU, expanding your growing family’s home, or transforming an unused garage into valuable living space, Legacy West Development is committed to delivering exceptional craftsmanship, thoughtful design, and a construction experience built on trust. Your dream project starts with one conversation. Let’s bring your vision to life—and build something that adds lasting value to your home for generations to come.

FAQs

Answers to commonly asked questions from the experts on Thumbtack.

There are several great options for waterproof basement flooring. For example, epoxy floors are waterproof but are thicker and sturdier than paint. Make sure the concrete substrate has been prepared for application. 

Tile is a designer’s dream, giving you a moisture-resistant surface that’s infinitely customizable. Rubber sheets or tiles are also good waterproof options, particularly for playrooms, workout areas or laundry rooms. 

Vinyl tiles and planks imitate wood or other materials very convincingly, provide moisture resistance and last a long time. And sheet vinyl is affordable and a great waterproofing solution for those in need of quick fixes.

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