What will a new roof cost?
Enter the floor area under the roof. You get a range for the covering, the labour and the timber framing, from Kenyan market rates reviewed 2026-09. It is a budget figure so you can judge a quotation when it arrives, not a quotation itself.
Estimated range
KES 262,000 to 714,000
146 m² of covering, including a 10 percent allowance for cuts and overlaps
| Covering, supplied | KES 58,000 to KES 175,000 |
| Labour | KES 87,000 to KES 175,000 |
| Timber framing | KES 117,000 to KES 364,000 |
Excludes gutters, fascia, ceilings, removing the old roof and access. A repair is quoted after inspection, not estimated here. Shown for 120 m² of mabati at a standard pitch until you change the inputs.
Get this checked against a written quotationWhere these figures come from
The calculator multiplies the published market ranges below by your area. A three-bedroom bungalow roof, materials and labour, is generally quoted between KES 280,000 and 650,000. A 120 m² floor area with new framing gives a wider range than that, because the calculator carries every low and every high rate at once. Use the middle of it, and treat the top as the case where everything is at its dearest.
| Work | Rate | Notes |
|---|---|---|
| Box profile, gauge 30 | KES 520 / metre | Thinnest common gauge, lightest duty |
| Box profile, gauge 28 | KES 580 / metre | The usual domestic choice |
| Box profile, gauge 26 | KES 720 / metre | Heaviest, longest service life |
| Plain iron sheet, supply only | KES 400 – 1,200 / m² | Varies by gauge, coating and brand |
| Stone-coated tile, supply only | KES 2,800 – 3,500 / m² | Five to seven times the cost of mabati |
Indicative market ranges for Kenya, reviewed 2026-09, published so you can budget and compare quotes. They are not a quotation: your price is confirmed in writing after we have seen the job.
| Work | Rate | Notes |
|---|---|---|
| Roof covering, labour only | KES 600 – 1,200 / m² | Standard pitched roof, sheet or tile |
| Roof framing and structure | KES 800 – 2,500 / m² | Timber carpentry, excluding covering |
| Waterproofing | KES 800 – 3,500 / m² | Flat and concealed roofs; system dependent |
| UPVC gutter, supplied and fitted | from KES 388 / linear metre |
Indicative market ranges for Kenya, reviewed 2026-09, published so you can budget and compare quotes. They are not a quotation: your price is confirmed in writing after we have seen the job.
| Work | Rate | Notes |
|---|---|---|
| Three-bedroom bungalow roof, all in | KES 280,000 – 650,000+ | Materials and labour; mabati at the lower end, stone-coated tile at the upper |
| Waterproofing a 100 m² flat roof | KES 120,000 – 250,000 | |
| Leak trace and repair | Inspection first | No reliable Kenyan published rate exists, and a figure quoted before seeing the roof is a guess |
Indicative market ranges for Kenya, reviewed 2026-09, published so you can budget and compare quotes. They are not a quotation: your price is confirmed in writing after we have seen the job.
Reading the result
How is the area of a pitched roof worked out?
The covering area is larger than the floor area underneath, because the roof slopes. Divide the floor area under the roof, including the overhang, by the cosine of the pitch angle. At 25 degrees that is a 10 percent increase, and at 35 degrees it is 22 percent. The calculator does this for you, then adds an allowance for cuts and overlaps.
Why is the range so wide?
Because the market is. Plain iron sheet is quoted between KES 400 and 1,200 per square metre depending on gauge, coating and brand, and stone-coated tile is five to seven times the cost of mabati. The calculator shows the full published range rather than a single figure that would look precise and be wrong.
What does it leave out?
Gutters, fascia, ceilings, removing the old roof, access and scaffolding, and anything specific to your site. It is a budgeting range, not a quotation.
Get a written quotation
Tell us the shape of the project and we will come back with a realistic cost range before anyone visits. No obligation, and no site visit charge.