Samsaen Engineering Co., Ltd. is a full-service civil engineering specialist in Phuket and surrounding areas. With over 10 years of experience, we provide structural repair, foundation lifting, steel pile reinforcement, retaining walls, and large-scale building renovations. Our commitment is to quality, safety, and international engineering standards certified by the Council of Engineers.
1. Specialized Expertise & Engineering Standards
Samsaen Engineering Co., Ltd. possesses specialized expertise that is rare in the southern region, offering comprehensive services.
Structural Repair
Conducting structural problem analysis with modern diagnostic tools
Why Analyze Before Repairing?
Structural repair is not just about fixing what you can “see.” It is essential to identify the root cause—such as cracks, settlement, or deformation of beams, columns, and slabs—to prevent recurring damage. That’s why advanced structural diagnostic tools are indispensable.
Modern Structural Diagnostic Tools
1.1 Rebound Hammer Test
- Measures concrete compressive strength
- Tests slab, column, and beam durability without drilling
1.2 Ultrasonic Pulse Velocity (UPV)
- Uses ultrasonic waves to check density and hidden cracks
- Detects voids or concealed structural damage
1.3 Ground Penetrating Radar (GPR)
- Radar scanning for concrete structures
- Detects rebar, pipes, and voids within structural elements
1.4 Core Sampling
- Extracts concrete samples for compressive strength testing
- Validates non-destructive testing (NDT) results
1.5 Infrared Thermography
- Identifies delamination, moisture, and leaks in walls or floors
- Reveals hidden defects invisible to the naked eye
1.6 Crack Width Microscope & Monitoring System
- Monitors crack depth and expansion with precision sensors
- Used to monitor whether cracks are deepening, widening, or remaining stable.
1.7 Load Test & Structural Health Monitoring (SHM)
- Simulates real load-bearing conditions
- Uses strain gauges, pressure sensors, and displacement meters
Analysis & Reporting
- Engineers evaluate structural damage.
- Estimate remaining service life.
- Recommend solutions such as steel reinforcement, CFRP strengthening, epoxy/cement injection, or foundation replacement.
2. Advanced Carbon Fiber & Steel Plate Reinforcement
Repairs cracks, settlement, and corrosion damage Guarantees 10–15 years of long-term structural stability
Structural Strengthening Techniques
2.1 Carbon Fiber Reinforcement (CFRP)
What it is : Applying CFRP sheets, strips, or carbon fiber fabric with epoxy to strengthen concrete
Applications : Beams, columns, slabs, bridges
Advantages : Lightweight but stronger than steel Corrosion-resistant Quick installation, no added weight
2.2 Steel Plate Bonding
What it is : Attaching steel plates to beams, columns, or slabs using epoxy bonding, welding, or anchors
Applications : Strengthening cracked beams/slabs or high-load structures
Pros : Lower cost than CFRP, suitable for high-strength demands
Cons : Prone to rust, heavier than CFRP
3. Foundation & Pile Work
Micro Pile for limited spaces Bored Pile (30–120 cm, up to 30m depth) Underpinning without disrupting building use Load-bearing calculations by registered structural engineers
3.1 Micro Pile
- Small-diameter piles (15–30 cm) for confined areas
- Ideal for urban buildings, old factories, hotels, resorts
- Reduces noise & vibration, safe for neigh boring structures
3.2 Bored Pile
- Large-diameter drilled piles (30–120 cm, depth up to 30m)
- Suitable for high-rise buildings, resorts, bridges
- High load-bearing capacity, ideal for permanent structures
3.3 Underpinning
- Strengthens or lifts settled foundations without disrupting use
- Uses Micro Pile or Jet Grouting for reinforcement
3.4 Load-Bearing Capacity Calculation
- Soil test (SPT, CPT), pile load test, capacity analysis
- Ensures compliance with engineering & legal standards
4. Retaining Wall & Earthwork
Gravity & Cantilever Retaining Walls Soil Nailing & Ground Anchors Drainage systems & erosion control Slope Stability Analysis
4.1 Retaining Wall & Earthwork
- Retaining Walls: RC Walls, L/T-Shape Walls, Gabion Walls
- Earthwork: Filling, compaction, excavation, grading, drainage
4.2 Hotel & Resort Renovation
- Structural repair without business interruption
- Building extension & expansion (extra wings, floors, rooms)
- Safety upgrades per Building Code
- Tropical climate design & green building focus
5. Engineering & Expert Team
Strengths of Our Team
- TISI-certified technicians
- 150+ projects completed in southern Thailand
- OHSAS 18001 / ISO 45001 safety compliance
Proven Track Record
Orchidacea Resort (Kata Beach, Phuket)
Year 2023–2024 | Project Value: THB 8.5M
- Inspect a 4-story building in accordance with the Building Control Act
- Reconstruct deteriorated concrete drainage channels, total area 350 sq.m
- Renovate 3 steel connecting bridges between buildings
- Demolish existing columns and break existing foundations at 12 locations
- Install new beam-supporting columns using H-beam structural steel
- Drill and install 24 steel piles, depth 8–12 meters
- Reinforce existing foundations with concrete grade 30
- Extend the lower floor area to add 15 additional rooms
Honda Service Center (Phuket Town)
Year 2022–2023 | Project Value: THB 4.2M
- Reinforced concrete retaining wall, 4 meters high and 85 meters long
- Prestressed concrete bridge over the canal, 6 meters wide and 25 meters long
- Rest area with roof and electrical system
- Canal bank erosion protection wall, total length 150 meters
- Constructed with SD40 grade reinforced steel and quick-setting concrete
Phi Phi Coralbay Bungalow (Krabi)
Year 2023 | Project Value: THB 2.8M
- Repair 16 structural columns damaged by seawater exposure
- Replace 8 reinforced concrete beams
- Repair floor slabs and balconies in 24 rooms
- Use saltwater-resistant materials and special anti-corrosion coatings
Rawai Private Villas (Phuket)
Year 2022–2024 | Project Value: THB 6.7M
- Install 48 steel micro piles, depth 15–20 meters
- Lift foundations of 12 villas without relocating existing items
- Construct retaining walls around an 8-rai area
- Extend bedrooms and kitchens in 6 villas
Success Stats
- On-time completion: 98.5%
- Client satisfaction: 99.2%
- Zero accidents: 100%
- Warranty: 5–15 years
Safety & Compliance
Engineering Standards
Design and structural calculations
- Apply DPT 1301-1-6 standard for structural calculations
- Follow ACI 318 for reinforced concrete works
- Use AISC Steel Construction Manual for structural steel works
- Refer to BS 8004 for foundation and geotechnical works
- Utilize ETABS, SAP2000, and PLAXIS for structural and soil analysis
Quality Control
- Inspect concrete quality using Schmidt Hammer
- Conduct compressive strength tests on every 50 m³ of cast concrete
- Verify reinforcement steel according to TIS 20-2517 standard
- Cure concrete for a minimum of 28 days
- Record QA/QC reports for every step of concrete quality control
Safety Management
⚠️ Safety Measures
- Comply with the Occupational Safety, Health, and Work Environment Act
- Assign a Safety Officer on-site for each project
- Provide complete PPE (Personal Protective Equipment) for all personnel
- Conduct daily safety meetings before starting work
- Maintain first aid kits and general medicines on-site
Legal Compliance
- Building Control Act B.E. 2522 and its amendments
- Ministerial Regulations regarding criteria, procedures, and conditions
- Thai Industrial Standards (TIS) for construction materials
- Provincial Building Codes as applicable
- Environmental Impact Assessment (EIA), if required
Certifications & Licenses
- Construction Material Brokerage Business License
- ISO 9001:2015 Certificate for Quality Management
- Registered Supervising Engineers with the Council of Engineers
- Certified Technicians accredited by the Department of Skill Development
- Construction Insurance and Liability Insurance
Quality Assurance
QA/QC System
- Implement Inspection and Test Plan (ITP) for all works
- Provide Material Certificates for all materials used
- Obtain Concrete Test Reports from certified laboratories
- Maintain photographic records before, during, and after construction
- Deliver As-Built Drawings upon project completion
- Provide 5 – 15 year warranty depending on the type of work
- Offer annual inspection services free for the first 3 years
- 24-hour emergency hotline for VIP clients
- Maintenance recommendations provided by engineers
- 20% discount on any additional works in the future
Civil Engineering Experts in Southern Thailand
If you are looking for a company specializing in building structure repair and construction in Phuket, Krabi, and Phang Nga, we are experts in
- Foundation lifting and steel piling works
- Retaining wall construction and slope protection
- Resort and hotel renovation projects
- Building inspection in compliance with the Building Control Act
Sam Saen Engineering Co., Ltd. is the trusted choice — with over 10 years of experience, a team of professional engineers, and a proven record of international-quality standards