About Capitol Stone Masonry
Capitol Stone Masonry has been preserving Washington DC's historic brick and stone structures since 1996. Our team of certified masons specializes in lime mortar repointing and brick restoration for pre-1940 rowhouses and federal-style buildings.
Credentials & Qualifications
- Years of Experience
- 28 years
- Founded
- 1996
- License Number
- DC-MAS-2847
- Insurance
- ✓ Insured
- Historic Score
- 95 / 100
- Service Area
- Washington, DC
Historic Score
Specialization index for pre-1950 restoration work
The Historic Score measures how deeply specialized a contractor is in the craft and compliance demands of pre-1950 construction. It combines verified experience, the breadth of historic specialties offered, insurance status, and how long the business has been operating — giving you a quick, reliable signal before you make contact.
Score Breakdown
Master-level tenure
Focused expertise
Fully covered for historic work
Long-established firm
When to Hire This Specialist
- 1
Your brick is spalling, staining with white efflorescence, or showing visible joint erosion — signs that the wrong mortar type or water infiltration is at work.
- 2
Brick faces are flaking, pitting, or breaking apart — which can signal moisture trapped by incompatible repointing material or freeze-thaw cycles.
- 3
You're noticing signs of deterioration in your pre-1950 home that a general contractor has attributed to a single cause — specialist diagnosis often reveals a different root issue.
Project Gallery
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Contact
Service Area
Washington, DC
Verified Historic Specialist
This contractor has been reviewed for experience with pre-1950 construction, period-appropriate materials, and historic district compliance.
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