New Title

When you need more room for your growing family or lifestyle, Sanmartin Contractor LLC delivers quality home addition solutions throughout Baltimore, MD and surrounding areas. Adding a master suite, expanding your kitchen, or creating a home office becomes simple with our 25 years of construction experience. Our services include:

• Room additions and expansions
• Second-story additions
• Sunroom installations
• Garage conversions
• In-law suite construction
• Bump-out additions

As a licensed and insured business, we handle all permits and work directly with insurance companies. Reach out to us for your free estimate within 1-2 business days.

• Your family is growing and bedrooms are limited
• You need a dedicated home office or workspace
• You want to age in place with accessible living areas
• Your home's value would increase with more square footage
• You're hosting extended family members
• You need more storage or functional space

• Flexible financing options available
• Bilingual services in English and Spanish
• Competitive price matching
• Complete transparency throughout your project
• Dependable and honest communication
• Full licensing and liability coverage
• Permit handling and insurance proposal preparation

Ready to add valuable space to your Baltimore, MD home? Sanmartin Contractor makes the home addition process straightforward and stress-free. We'll meet with you to discuss your vision, provide a detailed proposal, and guide you through every step from design to completion. Our experienced team manages everything from securing permits to final inspections so you can focus on enjoying your expanded living space. Contact us today.