At Dalla Ruhe Engineering and Construction Company, we specialize in building durable, beautiful, and functional homes that perfectly reflect your lifestyle, needs, and long-term goals. From the ground up, we manage every stage of construction with precision, transparency, and a commitment to quality.
Our experienced team combines strong engineering expertise with craftsmanship, ensuring your home is built on solid foundations, finished to the highest standards, and delivered on time. Whether you’re building a modest starter home, a spacious family residence, or a luxury multi-story house, we walk with you every step of the way.
What Our Construction Service Includes
- Site Preparation & Foundations – Excavation, setting out, and strong foundations for lasting stability.
- Structural Works – Walls, slabs, beams, and roofing built with precision and safety in mind.
- Utilities Installation – Electrical wiring, plumbing, and drainage systems integrated seamlessly.
- Finishing Works – Flooring, tiling, painting, ceilings, and carpentry for a perfect finish.
- Exterior Works – Driveways, landscaping, boundary walls, and outdoor spaces.
- Quality Control & Supervision – Regular inspections to ensure compliance with design and safety standards.
How Our Construction Service Works
We prepare a detailed bill of quantities (BoQ) and cost estimate for all required materials plus transportation costs. Once you approve the budget, we can purchase the materials on your behalf, or you can purchase them independently.
We prefer you allow us to purchase the materials on your behalf to ensure:
- Correct materials are bought at fair market prices – We use vetted suppliers and compare quotes so you get the right products (correct grade, spec, and warranty) at competitive rates. Bulk buying and supplier relationships often secure discounts you wouldn’t get shopping alone, and every purchase is documented with invoices for full transparency.
- Time savings since you don’t have to run around suppliers – Our procurement team sources, negotiates, orders and coordinates deliveries for you. That saves you dozens of hours of trips and calls, speeds up the build schedule, and frees you to focus on decisions that matter most.
- Reduced risk of delays due to missing or wrong materials – We plan deliveries to match the construction schedule, inspect materials on arrival, and keep buffer stocks for critical items. This prevents work stoppages caused by incorrect or late supplies and makes on-site progress more predictable and reliable.
However, if you prefer to purchase the materials yourself, we fully support that option. In such cases, we provide you with a detailed bill of quantities (BoQ) and guide you on what to buy and when, while we handle the construction and supervision.
Sample BOQ — 100 sqm, 3-bedroom bungalow (materials only)
| Foundation | ||||
|---|---|---|---|---|
| Item | Quantity | Unit cost (KES) | Transport (KES) | Total (KES) |
| Cement (50 kg bags) | 220 bags | 900 | 10,000 | 208,000 |
| Coarse aggregate (m³) | 30 m³ | 2,200 | 9,000 | 75,000 |
| River sand (m³) | 40 m³ | 1,200 | 8,000 | 56,000 |
| Hardcore / fill (m³) | 20 m³ | 1,000 | 4,200 | 24,200 |
| Reinforcement steel (kg) | 2,500 kg | 160 | 0 | 400,000 |
| Binding wire (kg) | 50 kg | 150 | 0 | 7,500 |
| Foundation subtotal: KES 770,700 |
| Walls | ||||
|---|---|---|---|---|
| Item | Quantity | Unit cost (KES) | Transport (KES) | Total (KES) |
| Hollow blocks (no.) | 3,000 | 45 | 6,000 | 141,000 |
| Cement for blocklaying & plaster (50 kg bags) | 180 bags | 900 | 7,550 | 169,550 |
| Sand for plaster (m³) | 25 m³ | 1,200 | 5,000 | 35,000 |
| Hoop iron reinforcement (kg) | 200 kg | 160 | 0 | 32,000 |
| Walls subtotal: KES 377,550 |
| Roofing | ||||
|---|---|---|---|---|
| Item | Quantity | Unit cost (KES) | Transport (KES) | Total (KES) |
| Roofing sheets (corrugated) (no.) | 35 | 1,200 | 3,500 | 45,500 |
| Timber for trusses (m³) | 3.0 | 25,000 | 5,000 | 80,000 |
| Nails & fixings (lumpsum) | 1 | 15,000 | 2,000 | 17,000 |
| Ceiling board (sqm) | 100 sqm | 1,000 | 3,000 | 103,000 |
| Timber for ceiling battens (m³) | 0.5 | 25,000 | 1,000 | 13,500 |
| Roofing subtotal: KES 259,000 |
| Finishes (floors, tiles, paint) | ||||
|---|---|---|---|---|
| Item | Quantity | Unit cost (KES) | Transport (KES) | Total (KES) |
| Ceramic tiles (floor & wet areas) — sqm | 100 sqm | 1,200 | 5,000 | 125,000 |
| Floor screed – cement (50 kg bags) | 40 bags | 900 | 3,000 | 39,000 |
| Floor screed – sand (m³) | 6 m³ | 1,200 | 1,000 | 8,200 |
| Tile adhesive & grout (kg) | 100 kg | 250 | 1,000 | 26,000 |
| Paint (5 L tins) | 8 tins | 2,500 | 2,000 | 22,000 |
| Finishes subtotal: KES 220,200 |
| Doors & Windows | ||||
|---|---|---|---|---|
| Item | Quantity | Unit cost (KES) | Transport (KES) | Total (KES) |
| Internal doors (no.) | 8 | 8,000 | 2,000 | 66,000 |
| External main door (no.) | 1 | 15,000 | 1,000 | 16,000 |
| Aluminium windows (no.) | 10 | 6,000 | 2,000 | 62,000 |
| Glass (sqm) | 12 sqm | 2,000 | 500 | 24,500 |
| Doors & Windows subtotal: KES 168,500 |
| Electrical & Plumbing | ||||
|---|---|---|---|---|
| Item | Quantity | Unit cost (KES) | Transport (KES) | Total (KES) |
| Main electrical cable (roll) | 1 | 18,000 | 1,000 | 19,000 |
| Lighting & power cable rolls (combined) | 3 rolls | 6,000 | 1,000 | 19,000 |
| Conduits & fittings (lumpsum) | 1 | 20,000 | 1,000 | 21,000 |
| Switches & sockets (no.) | 20 | 800 | 500 | 16,500 |
| Distribution board & MCBs (set) | 1 | 25,000 | 1,000 | 26,000 |
| Light fittings (no.) | 10 | 2,000 | 500 | 20,500 |
| PVC pipes & fittings (lumpsum) | 1 | 80,000 | 3,000 | 83,000 |
| Sanitaryware set (no.) | 3 | 25,000 | 2,000 | 77,000 |
| Electrical & Plumbing subtotal: KES 282,000 | ||||
| GRAND TOTAL (materials only): KES 2,077,950 |
Logistics fee per delivery
When you allow us to purchase materials on your behalf, we charge a small logistics fee per delivery, usually KES 5,000 – 10,000, in addition to the cost of materials and transportation.
This fee covers:
- Time and oversight – Our team spends time sourcing, supervising loading/unloading, and ensuring materials are properly stored on site to prevent wastage or theft.
- Supplier vetting and quality checks – We personally verify that the right materials are delivered, in the correct quantities and quality, before they are accepted on site.
By charging per delivery, you only pay for the actual logistics effort required. This model is transparent, flexible, and often cheaper than percentage-based fees.
Wherever possible, we group materials together into fewer trips, which reduces both transport costs and logistics fees.
Our priority is to keep your costs low, avoid unnecessary trips, and make sure every delivery contributes directly to steady progress on your home.
Labor and supervision fees
Having taken care of all materials, transportation costs, plus logistics fee, the only expense remaining is labor and supervision fees.
We charge a fixed daily rate for supervision and labor, taking into account who is on-site, what they do, and how long they’ll be there.
Every project is unique, meaning we can’t propose a general figure. This will be misleading. We can overcharge you and you end up spending more than is necessary. Or we can undercharge you and our company ends up making a loss. So, we analyze each project in great detail and give you a well-calculated amount for labor and supervision.
To help you understand our pricing better, below is an estimate for a 100 sqm 3-bedroom bungalow:
Sample Labor & Supervision Cost Schedule
(For illustration only – final rates depend on design, site conditions, and finishes)
| Role / Worker Type | Daily Rate (KES) | Estimated Days | Estimated Total (KES) | Notes |
|---|---|---|---|---|
| Site Engineer | 5,000 | 30 days (part-time across 4 months) | 150,000 | Visits site 2–3 times per week for supervision and quality checks |
| Site Supervisor (Foreman) | 3,000 | 90 days (daily presence) | 270,000 | On-site every day to oversee work and report progress |
| Masons (4 workers) | 1,500 each = 6,000 | 70 days | 420,000 | Build foundation, walls, plastering, and finishes |
| Carpenters (2 workers) | 1,500 each = 3,000 | 30 days | 90,000 | Formwork, roof trusses, doors, and windows |
| Steel Fixers (2 workers) | 1,500 each = 3,000 | 20 days | 60,000 | Reinforcement for foundation, beams, and slab |
| Plumbers (2 workers) | 1,500 each = 3,000 | 15 days | 45,000 | Install piping, drainage, and fittings during finishing stage |
| Electricians (2 workers) | 1,500 each = 3,000 | 15 days | 45,000 | Full house wiring, sockets, and lighting fixtures |
| Roofers (2 workers) | 1,500 each = 3,000 | 15 days | 45,000 | Roofing structure, iron sheets/tiles installation |
| Painters (2 workers) | 1,500 each = 3,000 | 20 days | 60,000 | Wall painting, finishes, polish |
| Tilers / Floor Finishers (2 workers) | 1,500 each = 3,000 | 20 days | 60,000 | Tile laying for floors, walls, and bathrooms |
| General Laborers (6 workers) | 800 each = 4,800 | 90 days | 432,000 | Carrying materials, mixing concrete, assisting tradesmen |
| Glaziers / Aluminum Fitters (optional, 2 workers) | 1,500 each = 3,000 | 10 days | 30,000 | Glass windows, panes, and aluminum fittings if required |
Estimated Total Labor & Supervision Fee: ~KES 1.7M
(For a 100 sqm 3-bedroom bungalow, excluding materials)
At Dalla Ruhe, we ensure every shilling is accounted for — no hidden costs, no surprises.
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