Building Construction (Residential & Commercial)
We deliver complete turnkey building construction from setting out and foundation excavation to structural roofing, MEP (mechanical, electrical, plumbing), and architectural finishes. Our projects are executed in strict accordance with approved engineering structural drawings.
Scope of Work & Deliverables:
- ✔ Site clearing, soil compaction & setting out with surveying equipment
- ✔ Reinforced concrete pad, strip, or raft foundation casting
- ✔ High-yield reinforcement rebar fixing with certified cover spacers
- ✔ Load-bearing 9-inch sandcrete blockwork with solid mortar joints
- ✔ Suspended slab formwork, casting, and mandatory 28-day water curing
- ✔ Heavy-duty roof trusses, aluminum/stone-coated roofing sheets & drainage gutters
Why N-SOL for Building Construction:
We do not use untested "substitute" materials. Concrete mix ratios are batch-measured with gauge boxes rather than artisan guesswork, ensuring structural longevity and zero foundation sinking.
Building Renovation & Structural Remodeling
Transforming older or damaged structures into modern, structurally sound assets. We perform detailed structural integrity inspections before commencing remodeling to ensure load-bearing walls and lintels are preserved safely.
Scope of Work & Deliverables:
- ✔ Structural crack remediation, column underpinning & lintel reinforcement
- ✔ Complete roof removal, re-trussing, and leak-proof re-roofing
- ✔ Dampness and moisture barrier injection treatments for rising damp
- ✔ Floor screeding, premium vitrified tile installation, and POP ceiling works
- ✔ Complete rewiring, plumbing pipe replacement, and modern sanitary installations
- ✔ Exterior wall rendering, texture painting, and compound elevation face-lift
Why N-SOL for Renovation:
Many contractors paint over cracked or damp walls without solving the underlying cause. We diagnose the root structural fault (e.g. soil movement, leaking lintels, poor drainage) before renovating.
Drainage and Civil Works
Specialized civil engineering solutions designed to eliminate stormwater flooding, compound water stagnation, and soil erosion across Anambra State's varied topography.
Scope of Work & Deliverables:
- ✔ Reinforced concrete (RC) box culverts, ring culverts & road crossings
- ✔ Deep roadside stormwater collector channels with heavy-duty covers
- ✔ Compound perimeter runoff drainage and soakaway retention chambers
- ✔ Site leveling, slope grading, and natural hydraulic runoff channelization
- ✔ Gully erosion stabilization and stone pitching defense structures
Why N-SOL for Civil Works:
Drainage channels fail when built with weak mortar blockwork. N-SOL uses reinforced in-situ concrete casting with structural rebar mats, engineered to withstand heavy vehicular traffic and high water velocity.
Landscaping & External Paving
Elevating the aesthetics, durability, and functionality of your property grounds through precision interlocking stone paving, retaining walls, perimeter drainage kerbs, and green terraces.
Scope of Work & Deliverables:
- ✔ Heavy-duty interlocking stone paving (60mm residential / 80mm commercial)
- ✔ Laser-measured subgrade excavation and stone dust compaction bedding
- ✔ Concrete edge kerbs, border containment, and vehicle driveway aprons
- ✔ Stone retaining walls for terraced sites with integrated weep holes
- ✔ Ornamental grass borders, planting beds, and low-maintenance green areas
Why N-SOL for Landscaping:
Interlocking stones sink and deform when subgrade soil is poorly compacted. We mechanically compact the base layers with vibratory plate compactors to prevent depressions and weeds.
Construction Subcontracting Packages
Supplying disciplined, verified trade teams and labor execution packages for primary contractors, project developers, and institutional builders who require reliable on-site productivity.
Scope of Work & Deliverables:
- ✔ Certified iron benders for high-yield rebar cutting, bending & fixing
- ✔ Structural formwork carpenters for column boxes, beam decking & stairs
- ✔ Precision sandcrete blocklayers for perimeter fencing and multi-storey masonry
- ✔ Professional plastering, floor screeding, and float-finish trade teams
- ✔ Dedicated trade foremen with direct daily reporting to the main contractor
Why N-SOL for Subcontracting:
We eliminate artisan indiscipline and site absenteeism. Our subcontracting teams work under contractual performance milestones with established quality benchmarks.
Building Material Procurement & Supply Chain
Direct sourcing of verified, high-grade construction materials delivered to your site in Onitsha, Anambra State, or nearby regions. We protect builders from fake cement brands, undersized rebar, and short-loaded aggregates.
Scope of Work & Deliverables:
- ✔ Fresh factory-grade Portland cement (Dangote / BUA 42.5N certified)
- ✔ Full-gauge structural high-yield rebar (10mm, 12mm, 16mm, 20mm, 25mm)
- ✔ Washed river sharp sand and granite aggregates (1/2 inch and 3/4 inch)
- ✔ Quality hardwood and softwood timber, marine plywood, and bamboo props
- ✔ Itemized delivery dockets signed off by site receivers upon truck arrival
Why N-SOL for Procurement:
Material fraud is rampant in open markets. We provide wholesale competitive pricing with genuine manufacturer batch verification and exact tonnage weighing.
Project Supervision & Quality Auditing
Independent, objective clerk-of-works representation for property owners who already have builders on site but need technical experts to inspect work, verify bills, and enforce engineering specifications.
Scope of Work & Deliverables:
- ✔ Daily or scheduled clerk-of-works presence during critical casting phases
- ✔ Foundation trench depth and soil load-bearing verification
- ✔ Rebar diameter, lap length, and stirrup spacing inspection before casting
- ✔ Concrete slump test oversight and proper water-cement ratio control
- ✔ Material inventory reconciliation (tracking cement delivered vs. used)
- ✔ Comprehensive weekly progress reports with dated photographic logs
Why N-SOL for Supervision:
We act solely in the property owner's best interest. We prevent builders from burying defective work inside concrete where it cannot be detected later.
Diaspora Project Reporting & Monitoring
A dedicated, independent monitoring service for Nigerians living in the UK, USA, Canada, Europe, or other states who are building back home. We eliminate family disputes, unverified contractor claims, and fund diversion through disciplined on-site audits.
Key Diaspora Deliverables:
- ✔ Unannounced on-site inspection visits with live GPS timestamps
- ✔ 4K ultra-clear walkthrough video logs showing actual structural details
- ✔ Verification of building materials physically on site vs. invoices sent to you
- ✔ Objective milestone sign-off reports before you transfer the next tranche
- ✔ Virtual debrief meetings via WhatsApp video or Zoom with our lead engineers
Learn More on Our Dedicated Diaspora Page:
We have created a dedicated guide explaining how to protect your capital, review sample milestone reports, and book your initial site audit.
Open Dedicated Diaspora Page →
Construction Consultancy & BOQ Advisory
Expert pre-construction guidance to help you plan your project budget accurately, review structural blueprints, and prevent costly architectural modifications midway through building.
Scope of Work & Deliverables:
- ✔ Independent review and valuation of existing Bill of Quantities (BOQ)
- ✔ Assessment of architectural, structural, and civil drawings for buildability
- ✔ Site topography, soil condition, and foundation suitability advisory
- ✔ Project milestone planning, cash-flow scheduling, and material budgeting
- ✔ Contractor contract vetting and milestone clause structuring
Why N-SOL for Consultancy:
A 1-hour pre-construction consultation can save you millions of Naira in avoidable foundation mistakes, over-estimated materials, and impractical structural designs.
Need a Custom Construction Package?
Whether you require a single trade package or full turnkey building execution in Anambra State or nationwide, our site team is ready to assist.