cost of Roof cleaning in Singapore
Quick‑Reference Overview
| Topic | Key Take‑aways |
|---|---|
| Cost of Roof Cleaning (Singapore) | SGD 600–2,500 (average ≈ SGD 1,200). Prices vary by roof size, material, accessibility, and whether you DIY or hire pro. |
| Common Cleaning Methods | Soft‑washing (low‑pressure + bleach solution), pressure‑washing (high‑pressure for concrete), manual scrubbing, and chemical‑free eco‑wash. |
| DIY How‑to | Plan, gather tools, choose the right method, protect safety gear, rinse, dry, and inspect. |
| Materials Needed | Pressure washer or low‑pressure hose, cleaning solution (bleach, vinegar, commercial eco‑wash), squeegees, stiff brushes, safety harness, gloves, goggles, fire‑safe ladder, water‑proof tarp. |
1. Cost of Roof Cleaning in Singapore
| Factor | Typical Price (SGD) |
|---|---|
| Small flat roof (≤ 50 m²) | 600–1,000 |
| Medium flat roof (≈ 50–150 m²) | 1,200–1,800 |
| Large flat roof (≥ 150 m²) | 1,800–2,500 |
| Steep pitched roof | add 200–500 |
| Special treatment (UV‑protective coating, insect‑repellent, etc.) | +300–700 |
Why the range?
- Roof material: metal, concrete, asphalt, or composite panels respond differently.
- Accessibility: roofs on high buildings or with balconies require rope‑access or hydraulic lifts.
- Condition: heavy algae or mould demands extra time or stronger chemicals.
- Method: pressure washing can cost more due to higher water‑usage fees and specialized equipment.
Tip: Request a fixed‑price quote from 3–4 local cleaners. Many will give a free inspection plus a written estimate.
2. Roof Cleaning Methods (What Works Best)
| Method | Best For | Pros | Cons |
|---|---|---|---|
| Soft‑Washing (low‑pressure + bleach) | Most flat roofs, aluminium, composite panels | Gentle on surfaces → no pitting; effective on algae & mould | Requires chemical solution; longer drying time |
| Pressure‑Washing (high‑pressure) | Concrete, tile, or heavily soiled roofs | Quick; deep cleaning | Can damage delicate panels or paint; more water usage |
| Manual Scrubbing (brushes & squeegees) | Small, difficult‑to‑reach spots | No chemicals; precise | Labor‑intensive; best for DIY |
| Eco‑Wash (vinegar, baking soda, eco‑friendly cleaners) | Environment‑conscious homeowners | No harsh chemicals; safe for pets & plants | May need multiple passes; less powerful vs. bleach |
| UV‑Protective / Coating (after cleaning) | Long‑term protection | Extends roof life; reduces future cleaning | Additional cost (~SG$200–300 per 100 m²) |
Choosing the right method:
- Metal panels → Soft‑wash + anti‑corrosion rinse.
- Concrete slabs → Pressure wash + a mild alkali cleaner.
- Shingles → Soft‑wash or gentle pressure with a low‑pressure wand.
3. How to Do Roof Cleaning (DIY Guide)
Prerequisites:
- Ladder or roof access platform (must meet local safety standards).
- Proper PPE (gloves, goggles, harness, non‑slip shoes).
- Adequate water supply & drainage plan.
Step 1: Preparation
- Inspect the roof for loose panels, cracks, or drainage blockages.
- Clear debris (leaves, branches).
- Secure a water‑proof tarp or plastic sheet under the roof to catch runoff.
- Measure the area to estimate the cleaning solution needed.
Step 2: Choose the Cleaning Method
- Soft‑wash: Mix 1 L bleach (10% sodium hypochlorite) → 10 L water or use a commercial eco‑wash.
- Pressure‑wash: Set pressure to 300–400 psi for concrete.
- Manual: Use a stiff‑bristle brush and a 5–10 L bucket of soapy water.
Step 3: Application
- Apply the solution with a garden sprayer or a squeegee‑type wand.
- Let it sit 10–15 min (or as per product instructions).
- Scrub or spray using the chosen method.
- Rinse thoroughly with clean water.
- Repeat if stains persist.
Step 4: Dry & Inspect
- Let the roof dry naturally.
- Inspect for remaining stains; repeat spot‑cleaning if needed.
- Check for damaged or loose panels; repair before final inspection.
Step 5: Clean Up
- Dispose of runoff properly (avoid drainage channels or stormwater).
- Store leftover cleaning solution (if storeable) in a sealed container.
Safety Note: Always keep a rope‑access plan for higher roofs; never work alone if you’re not comfortable with heights.
4. Roof Cleaning Materials & Where to Get Them
| Item | Typical Cost (SGD) | Where to Buy |
|---|---|---|
| Pressure washer (≥ 2.5 bar) | 200–500 | Hardware stores, online (Amazon SG, Qoo10) |
| Garden sprayer (auto‑spray) | 30–70 | H&M, Home‑SG |
| Bleach (10 %) | 10–15 per 1 L | Supermarkets, hardware |
| Commercial eco‑wash | 25–50 per 1 L | Eco‑clean stores, online |
| Stiff‑bristle brush | 20–40 | Hardware, outdoor gear |
| Squeegee | 15–30 | Hardware, pattern shop |
| Safety harness | 100–200 | Outdoor/industrial suppliers |
| Non‑slip shoes | 50–120 | Sports stores, safety gear shops |
| Fire‑safe ladder | 150–300 | Home‑SG, hardware |
| Water‑proof tarp | 30–60 | Home‑SG, outdoor gear |
| Gloves & goggles | 10–30 | Hardware, safety gear stores |
Tip: Many local cleaning companies rent out pressure washers & safety gear, which can be more cost‑effective for a one‑off job.
5. Final Checklist Before You Start
- Have you checked local regulations for roof cleaning on high‑rise buildings?
- Do you have the right equipment for the roof type?
- Have you tested the cleaning solution on a small, inconspicuous area first?
- Have you made a drainage plan to avoid water pooling in drains?
- Do you have a backup plan if it rains?
Quick FAQ
| Question | Answer |
|---|---|
| Can I use my garden hose? | For soft‑wash, yes. For pressure‑wash, only a pressure‑washer rig. |
| Is bleach safe for pets? | Yes, if fully rinsed; keep pets away during cleaning and drying. |
| How often should I clean a roof? | 1–2 times per year in Singapore’s humid climate. |
| Will roof cleaning extend roof life? | Yes – removes corrosive algae, mould, and reduces heat retention. |
Feel free to ask if you need a detailed quote template, or a deeper dive into eco‑friendly alternatives!
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